Adding debian version 1.8.3-2.debian/1.8.3-2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

89 files changed, 31892 insertions, 0 deletions

diff --git a/debian/vendor-h2o/lib/common/cache.c b/debian/vendor-h2o/lib/common/cache.c
new file mode 100644
index 0000000..cc8d8f0
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/cache.c
@@ -0,0 +1,273 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <assert.h>
+#include <pthread.h>
+#include "khash.h"
+#include "h2o/cache.h"
+#include "h2o/linklist.h"
+#include "h2o/memory.h"
+#include "h2o/string_.h"
+
+static h2o_cache_hashcode_t get_keyhash(h2o_cache_ref_t *ref);
+static int is_equal(h2o_cache_ref_t *x, h2o_cache_ref_t *y);
+
+KHASH_INIT(cache, h2o_cache_ref_t *, char, 0, get_keyhash, is_equal)
+
+struct st_h2o_cache_t {
+    int flags;
+    khash_t(cache) * table;
+    size_t size;
+    size_t capacity;
+    h2o_linklist_t lru;
+    h2o_linklist_t age;
+    uint64_t duration;
+    void (*destroy_cb)(h2o_iovec_t value);
+    pthread_mutex_t mutex; /* only used if (flags & H2O_CACHE_FLAG_MULTITHREADED) != 0 */
+};
+
+static h2o_cache_hashcode_t get_keyhash(h2o_cache_ref_t *ref)
+{
+    return ref->keyhash;
+}
+
+static int is_equal(h2o_cache_ref_t *x, h2o_cache_ref_t *y)
+{
+    return x->key.len == y->key.len && memcmp(x->key.base, y->key.base, x->key.len) == 0;
+}
+
+static void lock_cache(h2o_cache_t *cache)
+{
+    if ((cache->flags & H2O_CACHE_FLAG_MULTITHREADED) != 0)
+        pthread_mutex_lock(&cache->mutex);
+}
+
+static void unlock_cache(h2o_cache_t *cache)
+{
+    if ((cache->flags & H2O_CACHE_FLAG_MULTITHREADED) != 0)
+        pthread_mutex_unlock(&cache->mutex);
+}
+
+static void erase_ref(h2o_cache_t *cache, khiter_t iter, int reuse)
+{
+    h2o_cache_ref_t *ref = kh_key(cache->table, iter);
+
+    if (!reuse)
+        kh_del(cache, cache->table, iter);
+    h2o_linklist_unlink(&ref->_lru_link);
+    h2o_linklist_unlink(&ref->_age_link);
+    cache->size -= ref->value.len;
+
+    h2o_cache_release(cache, ref);
+}
+
+static int64_t get_timeleft(h2o_cache_t *cache, h2o_cache_ref_t *ref, uint64_t now)
+{
+    return (int64_t)(ref->at + cache->duration) - now;
+}
+
+static void purge(h2o_cache_t *cache, uint64_t now)
+{
+    /* by cache size */
+    while (cache->capacity < cache->size) {
+        h2o_cache_ref_t *last;
+        assert(!h2o_linklist_is_empty(&cache->lru));
+        last = H2O_STRUCT_FROM_MEMBER(h2o_cache_ref_t, _lru_link, cache->lru.next);
+        erase_ref(cache, kh_get(cache, cache->table, last), 0);
+    }
+    /* by TTL */
+    while (!h2o_linklist_is_empty(&cache->age)) {
+        h2o_cache_ref_t *oldest = H2O_STRUCT_FROM_MEMBER(h2o_cache_ref_t, _age_link, cache->age.next);
+        if (get_timeleft(cache, oldest, now) >= 0)
+            break;
+        erase_ref(cache, kh_get(cache, cache->table, oldest), 0);
+    }
+}
+
+h2o_cache_hashcode_t h2o_cache_calchash(const char *s, size_t l)
+{
+    h2o_cache_hashcode_t h = 0;
+    for (; l != 0; --l)
+        h = (h << 5) - h + ((unsigned char *)s)[l - 1];
+    return h;
+}
+
+h2o_cache_t *h2o_cache_create(int flags, size_t capacity, uint64_t duration, void (*destroy_cb)(h2o_iovec_t value))
+{
+    h2o_cache_t *cache = h2o_mem_alloc(sizeof(*cache));
+
+    cache->flags = flags;
+    cache->table = kh_init(cache);
+    cache->size = 0;
+    cache->capacity = capacity;
+    h2o_linklist_init_anchor(&cache->lru);
+    h2o_linklist_init_anchor(&cache->age);
+    cache->duration = duration;
+    cache->destroy_cb = destroy_cb;
+    if ((cache->flags & H2O_CACHE_FLAG_MULTITHREADED) != 0)
+        pthread_mutex_init(&cache->mutex, NULL);
+
+    return cache;
+}
+
+void h2o_cache_destroy(h2o_cache_t *cache)
+{
+    h2o_cache_clear(cache);
+    kh_destroy(cache, cache->table);
+    if ((cache->flags & H2O_CACHE_FLAG_MULTITHREADED) != 0)
+        pthread_mutex_destroy(&cache->mutex);
+    free(cache);
+}
+
+void h2o_cache_clear(h2o_cache_t *cache)
+{
+    lock_cache(cache);
+
+    while (!h2o_linklist_is_empty(&cache->lru)) {
+        h2o_cache_ref_t *ref = H2O_STRUCT_FROM_MEMBER(h2o_cache_ref_t, _lru_link, cache->lru.next);
+        erase_ref(cache, kh_get(cache, cache->table, ref), 0);
+    }
+    assert(h2o_linklist_is_linked(&cache->age));
+    assert(kh_size(cache->table) == 0);
+    assert(cache->size == 0);
+
+    unlock_cache(cache);
+}
+
+h2o_cache_ref_t *h2o_cache_fetch(h2o_cache_t *cache, uint64_t now, h2o_iovec_t key, h2o_cache_hashcode_t keyhash)
+{
+    h2o_cache_ref_t search_key, *ref;
+    khiter_t iter;
+    int64_t timeleft;
+
+    if (keyhash == 0)
+        keyhash = h2o_cache_calchash(key.base, key.len);
+    search_key.key = key;
+    search_key.keyhash = keyhash;
+
+    lock_cache(cache);
+
+    purge(cache, now);
+
+    if ((iter = kh_get(cache, cache->table, &search_key)) == kh_end(cache->table))
+        goto NotFound;
+
+    /* found */
+    ref = kh_key(cache->table, iter);
+    timeleft = get_timeleft(cache, ref, now);
+    if (timeleft < 0)
+        goto NotFound;
+    if ((cache->flags & H2O_CACHE_FLAG_EARLY_UPDATE) != 0 && timeleft < 10 && !ref->_requested_early_update) {
+        ref->_requested_early_update = 1;
+        goto NotFound;
+    }
+    /* move the entry to the top of LRU */
+    h2o_linklist_unlink(&ref->_lru_link);
+    h2o_linklist_insert(&cache->lru, &ref->_lru_link);
+    __sync_fetch_and_add(&ref->_refcnt, 1);
+
+    /* unlock and return the found entry */
+    unlock_cache(cache);
+    return ref;
+
+NotFound:
+    unlock_cache(cache);
+    return NULL;
+}
+
+void h2o_cache_release(h2o_cache_t *cache, h2o_cache_ref_t *ref)
+{
+    if (__sync_fetch_and_sub(&ref->_refcnt, 1) == 1) {
+        assert(!h2o_linklist_is_linked(&ref->_lru_link));
+        assert(!h2o_linklist_is_linked(&ref->_age_link));
+        if (cache->destroy_cb != NULL)
+            cache->destroy_cb(ref->value);
+        free(ref->key.base);
+        free(ref);
+    }
+}
+
+int h2o_cache_set(h2o_cache_t *cache, uint64_t now, h2o_iovec_t key, h2o_cache_hashcode_t keyhash, h2o_iovec_t value)
+{
+    h2o_cache_ref_t *newref;
+    khiter_t iter;
+    int existed;
+
+    if (keyhash == 0)
+        keyhash = h2o_cache_calchash(key.base, key.len);
+
+    /* create newref */
+    newref = h2o_mem_alloc(sizeof(*newref));
+    *newref = (h2o_cache_ref_t){h2o_strdup(NULL, key.base, key.len), keyhash, now, value, 0, {NULL}, {NULL}, 1};
+
+    lock_cache(cache);
+
+    /* set or replace the named value */
+    iter = kh_get(cache, cache->table, newref);
+    if (iter != kh_end(cache->table)) {
+        erase_ref(cache, iter, 1);
+        kh_key(cache->table, iter) = newref;
+        existed = 1;
+    } else {
+        int unused;
+        kh_put(cache, cache->table, newref, &unused);
+        existed = 0;
+    }
+    h2o_linklist_insert(&cache->lru, &newref->_lru_link);
+    h2o_linklist_insert(&cache->age, &newref->_age_link);
+    cache->size += newref->value.len;
+
+    purge(cache, now);
+
+    unlock_cache(cache);
+
+    return existed;
+}
+
+void h2o_cache_delete(h2o_cache_t *cache, uint64_t now, h2o_iovec_t key, h2o_cache_hashcode_t keyhash)
+{
+    h2o_cache_ref_t search_key;
+    khiter_t iter;
+
+    if (keyhash == 0)
+        keyhash = h2o_cache_calchash(key.base, key.len);
+    search_key.key = key;
+    search_key.keyhash = keyhash;
+
+    lock_cache(cache);
+
+    purge(cache, now);
+
+    if ((iter = kh_get(cache, cache->table, &search_key)) != kh_end(cache->table))
+        erase_ref(cache, iter, 0);
+
+    unlock_cache(cache);
+}
+
+size_t h2o_cache_get_capacity(h2o_cache_t *cache)
+{
+    return cache->capacity;
+}
+
+uint64_t h2o_cache_get_duration(h2o_cache_t *cache)
+{
+    return cache->duration;
+}
diff --git a/debian/vendor-h2o/lib/common/file.c b/debian/vendor-h2o/lib/common/file.c
new file mode 100644
index 0000000..3cf5ac5
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/file.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <errno.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <unistd.h>
+#include "h2o/file.h"
+
+h2o_iovec_t h2o_file_read(const char *fn)
+{
+    int fd;
+    struct stat st;
+    h2o_iovec_t ret = {NULL};
+
+    /* open */
+    if ((fd = open(fn, O_RDONLY | O_CLOEXEC)) == -1)
+        goto Error;
+    if (fstat(fd, &st))
+        goto Error;
+    /* allocate memory */
+    if (st.st_size > SIZE_MAX) {
+        errno = ENOMEM;
+        goto Error;
+    }
+    if ((ret.base = malloc((size_t)st.st_size)) == NULL)
+        goto Error;
+    /* read */
+    while (ret.len != (size_t)st.st_size) {
+        ssize_t r;
+        while ((r = read(fd, ret.base + ret.len, (size_t)st.st_size - ret.len)) == -1 && errno == EINTR)
+            ;
+        if (r <= 0)
+            goto Error;
+        ret.len += r;
+    }
+    /* close */
+    close(fd);
+    return ret;
+
+Error:
+    if (fd != -1)
+        close(fd);
+    free(ret.base);
+    return (h2o_iovec_t){NULL};
+}
diff --git a/debian/vendor-h2o/lib/common/filecache.c b/debian/vendor-h2o/lib/common/filecache.c
new file mode 100644
index 0000000..747a1ff
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/filecache.c
@@ -0,0 +1,170 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <unistd.h>
+#include "khash.h"
+#include "h2o/memory.h"
+#include "h2o/filecache.h"
+
+KHASH_SET_INIT_STR(opencache_set)
+
+struct st_h2o_filecache_t {
+    khash_t(opencache_set) * hash;
+    h2o_linklist_t lru;
+    size_t capacity;
+};
+
+static inline void release_from_cache(h2o_filecache_t *cache, khiter_t iter)
+{
+    const char *path = kh_key(cache->hash, iter);
+    h2o_filecache_ref_t *ref = H2O_STRUCT_FROM_MEMBER(h2o_filecache_ref_t, _path, path);
+
+    /* detach from list */
+    kh_del(opencache_set, cache->hash, iter);
+    h2o_linklist_unlink(&ref->_lru);
+
+    /* and close */
+    h2o_filecache_close_file(ref);
+}
+
+h2o_filecache_t *h2o_filecache_create(size_t capacity)
+{
+    h2o_filecache_t *cache = h2o_mem_alloc(sizeof(*cache));
+
+    cache->hash = kh_init(opencache_set);
+    h2o_linklist_init_anchor(&cache->lru);
+    cache->capacity = capacity;
+
+    return cache;
+}
+
+void h2o_filecache_destroy(h2o_filecache_t *cache)
+{
+    h2o_filecache_clear(cache);
+    assert(kh_size(cache->hash) == 0);
+    assert(h2o_linklist_is_empty(&cache->lru));
+    kh_destroy(opencache_set, cache->hash);
+    free(cache);
+}
+
+void h2o_filecache_clear(h2o_filecache_t *cache)
+{
+    khiter_t iter;
+    for (iter = kh_begin(cache->hash); iter != kh_end(cache->hash); ++iter) {
+        if (!kh_exist(cache->hash, iter))
+            continue;
+        release_from_cache(cache, iter);
+    }
+    assert(kh_size(cache->hash) == 0);
+}
+
+h2o_filecache_ref_t *h2o_filecache_open_file(h2o_filecache_t *cache, const char *path, int oflag)
+{
+    khiter_t iter = kh_get(opencache_set, cache->hash, path);
+    h2o_filecache_ref_t *ref;
+    int dummy;
+
+    /* lookup cache, and return the one if found */
+    if (iter != kh_end(cache->hash)) {
+        ref = H2O_STRUCT_FROM_MEMBER(h2o_filecache_ref_t, _path, kh_key(cache->hash, iter));
+        ++ref->_refcnt;
+        goto Exit;
+    }
+
+    /* create a new cache entry */
+    ref = h2o_mem_alloc(offsetof(h2o_filecache_ref_t, _path) + strlen(path) + 1);
+    ref->_refcnt = 1;
+    ref->_lru = (h2o_linklist_t){NULL};
+    strcpy(ref->_path, path);
+
+    /* if cache is used, then... */
+    if (cache->capacity != 0) {
+        /* purge one entry from LRU if cache is full */
+        if (kh_size(cache->hash) == cache->capacity) {
+            h2o_filecache_ref_t *purge_ref = H2O_STRUCT_FROM_MEMBER(h2o_filecache_ref_t, _lru, cache->lru.prev);
+            khiter_t purge_iter = kh_get(opencache_set, cache->hash, purge_ref->_path);
+            assert(purge_iter != kh_end(cache->hash));
+            release_from_cache(cache, purge_iter);
+        }
+        /* assign the new entry */
+        ++ref->_refcnt;
+        kh_put(opencache_set, cache->hash, ref->_path, &dummy);
+        h2o_linklist_insert(cache->lru.next, &ref->_lru);
+    }
+
+    /* open the file, or memoize the error */
+    if ((ref->fd = open(path, oflag)) != -1 && fstat(ref->fd, &ref->st) == 0) {
+        ref->_last_modified.str[0] = '\0';
+        ref->_etag.len = 0;
+    } else {
+        ref->open_err = errno;
+        if (ref->fd != -1) {
+            close(ref->fd);
+            ref->fd = -1;
+        }
+    }
+
+Exit:
+    /* if the cache entry retains an error, return it instead of the reference */
+    if (ref->fd == -1) {
+        errno = ref->open_err;
+        h2o_filecache_close_file(ref);
+        ref = NULL;
+    }
+    return ref;
+}
+
+void h2o_filecache_close_file(h2o_filecache_ref_t *ref)
+{
+    if (--ref->_refcnt != 0)
+        return;
+    assert(!h2o_linklist_is_linked(&ref->_lru));
+    if (ref->fd != -1) {
+        close(ref->fd);
+        ref->fd = -1;
+    }
+    free(ref);
+}
+
+struct tm *h2o_filecache_get_last_modified(h2o_filecache_ref_t *ref, char *outbuf)
+{
+    assert(ref->fd != -1);
+    if (ref->_last_modified.str[0] == '\0') {
+        gmtime_r(&ref->st.st_mtime, &ref->_last_modified.gm);
+        h2o_time2str_rfc1123(ref->_last_modified.str, &ref->_last_modified.gm);
+    }
+    if (outbuf != NULL)
+        memcpy(outbuf, ref->_last_modified.str, H2O_TIMESTR_RFC1123_LEN + 1);
+    return &ref->_last_modified.gm;
+}
+
+size_t h2o_filecache_get_etag(h2o_filecache_ref_t *ref, char *outbuf)
+{
+    assert(ref->fd != -1);
+    if (ref->_etag.len == 0)
+        ref->_etag.len = sprintf(ref->_etag.buf, "\"%08x-%zx\"", (unsigned)ref->st.st_mtime, (size_t)ref->st.st_size);
+    memcpy(outbuf, ref->_etag.buf, ref->_etag.len + 1);
+    return ref->_etag.len;
+}
diff --git a/debian/vendor-h2o/lib/common/hostinfo.c b/debian/vendor-h2o/lib/common/hostinfo.c
new file mode 100644
index 0000000..7b481e2
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/hostinfo.c
@@ -0,0 +1,229 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o/hostinfo.h"
+
+struct st_h2o_hostinfo_getaddr_req_t {
+    h2o_multithread_receiver_t *_receiver;
+    h2o_hostinfo_getaddr_cb _cb;
+    void *cbdata;
+    h2o_linklist_t _pending;
+    union {
+        struct {
+            char *name;
+            char *serv;
+            struct addrinfo hints;
+        } _in;
+        struct {
+            h2o_multithread_message_t message;
+            const char *errstr;
+            struct addrinfo *ai;
+        } _out;
+    };
+};
+
+static struct {
+    pthread_mutex_t mutex;
+    pthread_cond_t cond;
+    h2o_linklist_t pending; /* anchor of h2o_hostinfo_getaddr_req_t::_pending */
+    size_t num_threads;
+    size_t num_threads_idle;
+} queue = {PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER, {&queue.pending, &queue.pending}, 0, 0};
+
+size_t h2o_hostinfo_max_threads = 1;
+
+static void lookup_and_respond(h2o_hostinfo_getaddr_req_t *req)
+{
+    struct addrinfo *res;
+
+    int ret = getaddrinfo(req->_in.name, req->_in.serv, &req->_in.hints, &res);
+    req->_out.message = (h2o_multithread_message_t){{NULL}};
+    if (ret != 0) {
+        req->_out.errstr = gai_strerror(ret);
+        req->_out.ai = NULL;
+    } else {
+        req->_out.errstr = NULL;
+        req->_out.ai = res;
+    }
+
+    h2o_multithread_send_message(req->_receiver, &req->_out.message);
+}
+
+static void *lookup_thread_main(void *_unused)
+{
+    pthread_mutex_lock(&queue.mutex);
+
+    while (1) {
+        --queue.num_threads_idle;
+        while (!h2o_linklist_is_empty(&queue.pending)) {
+            h2o_hostinfo_getaddr_req_t *req = H2O_STRUCT_FROM_MEMBER(h2o_hostinfo_getaddr_req_t, _pending, queue.pending.next);
+            h2o_linklist_unlink(&req->_pending);
+            pthread_mutex_unlock(&queue.mutex);
+            lookup_and_respond(req);
+            pthread_mutex_lock(&queue.mutex);
+        }
+        ++queue.num_threads_idle;
+        pthread_cond_wait(&queue.cond, &queue.mutex);
+    }
+
+    h2o_fatal("unreachable");
+    return NULL;
+}
+
+static void create_lookup_thread(void)
+{
+    pthread_t tid;
+    pthread_attr_t attr;
+    int ret;
+
+    pthread_attr_init(&attr);
+    pthread_attr_setdetachstate(&attr, 1);
+    pthread_attr_setstacksize(&attr, 100 * 1024);
+    if ((ret = pthread_create(&tid, NULL, lookup_thread_main, NULL)) != 0) {
+        if (queue.num_threads == 0) {
+            fprintf(stderr, "failed to start first thread for getaddrinfo:%s\n", strerror(ret));
+            abort();
+        } else {
+            perror("pthread_create(for getaddrinfo)");
+        }
+        return;
+    }
+
+    ++queue.num_threads;
+    ++queue.num_threads_idle;
+}
+
+h2o_hostinfo_getaddr_req_t *h2o_hostinfo_getaddr(h2o_multithread_receiver_t *receiver, h2o_iovec_t name, h2o_iovec_t serv,
+                                                 int family, int socktype, int protocol, int flags, h2o_hostinfo_getaddr_cb cb,
+                                                 void *cbdata)
+{
+    h2o_hostinfo_getaddr_req_t *req = h2o_mem_alloc(sizeof(*req) + name.len + 1 + serv.len + 1);
+    req->_receiver = receiver;
+    req->_cb = cb;
+    req->cbdata = cbdata;
+    req->_pending = (h2o_linklist_t){NULL};
+    req->_in.name = (char *)req + sizeof(*req);
+    memcpy(req->_in.name, name.base, name.len);
+    req->_in.name[name.len] = '\0';
+    req->_in.serv = req->_in.name + name.len + 1;
+    memcpy(req->_in.serv, serv.base, serv.len);
+    req->_in.serv[serv.len] = '\0';
+    memset(&req->_in.hints, 0, sizeof(req->_in.hints));
+    req->_in.hints.ai_family = family;
+    req->_in.hints.ai_socktype = socktype;
+    req->_in.hints.ai_protocol = protocol;
+    req->_in.hints.ai_flags = flags;
+
+    h2o__hostinfo_getaddr_dispatch(req);
+
+    return req;
+}
+
+void h2o__hostinfo_getaddr_dispatch(h2o_hostinfo_getaddr_req_t *req)
+{
+    pthread_mutex_lock(&queue.mutex);
+
+    h2o_linklist_insert(&queue.pending, &req->_pending);
+
+    if (queue.num_threads_idle == 0 && queue.num_threads < h2o_hostinfo_max_threads)
+        create_lookup_thread();
+
+    pthread_cond_signal(&queue.cond);
+    pthread_mutex_unlock(&queue.mutex);
+}
+
+void h2o_hostinfo_getaddr_cancel(h2o_hostinfo_getaddr_req_t *req)
+{
+    int should_free = 0;
+
+    pthread_mutex_lock(&queue.mutex);
+
+    if (h2o_linklist_is_linked(&req->_pending)) {
+        h2o_linklist_unlink(&req->_pending);
+        should_free = 1;
+    } else {
+        req->_cb = NULL;
+    }
+
+    pthread_mutex_unlock(&queue.mutex);
+
+    if (should_free)
+        free(req);
+}
+
+void h2o_hostinfo_getaddr_receiver(h2o_multithread_receiver_t *receiver, h2o_linklist_t *messages)
+{
+    while (!h2o_linklist_is_empty(messages)) {
+        h2o_hostinfo_getaddr_req_t *req = H2O_STRUCT_FROM_MEMBER(h2o_hostinfo_getaddr_req_t, _out.message.link, messages->next);
+        h2o_linklist_unlink(&req->_out.message.link);
+        h2o_hostinfo_getaddr_cb cb = req->_cb;
+        if (cb != NULL) {
+            req->_cb = NULL;
+            cb(req, req->_out.errstr, req->_out.ai, req->cbdata);
+        }
+        if (req->_out.ai != NULL)
+            freeaddrinfo(req->_out.ai);
+        free(req);
+    }
+}
+
+static const char *fetch_aton_digit(const char *p, const char *end, unsigned char *value)
+{
+    size_t ndigits = 0;
+    int v = 0;
+
+    while (p != end && ('0' <= *p && *p <= '9')) {
+        v = v * 10 + *p++ - '0';
+        ++ndigits;
+    }
+    if (!(1 <= ndigits && ndigits <= 3))
+        return NULL;
+    if (v > 255)
+        return NULL;
+    *value = (unsigned char)v;
+    return p;
+}
+
+int h2o_hostinfo_aton(h2o_iovec_t host, struct in_addr *addr)
+{
+    union {
+        int32_t n;
+        unsigned char c[4];
+    } value;
+    const char *p = host.base, *end = p + host.len;
+    size_t ndots = 0;
+
+    while (1) {
+        if ((p = fetch_aton_digit(p, end, value.c + ndots)) == NULL)
+            return -1;
+        if (ndots == 3)
+            break;
+        if (p == end || !(*p == '.'))
+            return -1;
+        ++p;
+        ++ndots;
+    }
+    if (p != end)
+        return -1;
+
+    addr->s_addr = value.n;
+    return 0;
+}
diff --git a/debian/vendor-h2o/lib/common/http1client.c b/debian/vendor-h2o/lib/common/http1client.c
new file mode 100644
index 0000000..8547ea8
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/http1client.c
@@ -0,0 +1,582 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include "picohttpparser.h"
+#include "h2o.h"
+
+struct st_h2o_http1client_private_t {
+    h2o_http1client_t super;
+    union {
+        h2o_http1client_connect_cb on_connect;
+        h2o_http1client_head_cb on_head;
+        h2o_http1client_body_cb on_body;
+    } _cb;
+    h2o_timeout_entry_t _timeout;
+    int _method_is_head;
+    h2o_hostinfo_getaddr_req_t *_getaddr_req;
+    int _can_keepalive;
+    union {
+        struct {
+            size_t bytesleft;
+        } content_length;
+        struct {
+            struct phr_chunked_decoder decoder;
+            size_t bytes_decoded_in_buf;
+        } chunked;
+    } _body_decoder;
+};
+
+static void close_client(struct st_h2o_http1client_private_t *client)
+{
+    if (client->_getaddr_req != NULL) {
+        h2o_hostinfo_getaddr_cancel(client->_getaddr_req);
+        client->_getaddr_req = NULL;
+    }
+    if (client->super.ssl.server_name != NULL)
+        free(client->super.ssl.server_name);
+    if (client->super.sock != NULL) {
+        if (client->super.sockpool.pool != NULL && client->_can_keepalive) {
+            /* we do not send pipelined requests, and thus can trash all the received input at the end of the request */
+            h2o_buffer_consume(&client->super.sock->input, client->super.sock->input->size);
+            h2o_socketpool_return(client->super.sockpool.pool, client->super.sock);
+        } else {
+            h2o_socket_close(client->super.sock);
+        }
+    } else {
+        if (client->super.sockpool.connect_req != NULL) {
+            h2o_socketpool_cancel_connect(client->super.sockpool.connect_req);
+            client->super.sockpool.connect_req = NULL;
+        }
+    }
+    if (h2o_timeout_is_linked(&client->_timeout))
+        h2o_timeout_unlink(&client->_timeout);
+    free(client);
+}
+
+static void on_body_error(struct st_h2o_http1client_private_t *client, const char *errstr)
+{
+    client->_can_keepalive = 0;
+    client->_cb.on_body(&client->super, errstr);
+    close_client(client);
+}
+
+static void on_body_timeout(h2o_timeout_entry_t *entry)
+{
+    struct st_h2o_http1client_private_t *client = H2O_STRUCT_FROM_MEMBER(struct st_h2o_http1client_private_t, _timeout, entry);
+    on_body_error(client, "I/O timeout");
+}
+
+static void on_body_until_close(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_http1client_private_t *client = sock->data;
+
+    h2o_timeout_unlink(&client->_timeout);
+
+    if (err != NULL) {
+        client->_cb.on_body(&client->super, h2o_http1client_error_is_eos);
+        close_client(client);
+        return;
+    }
+
+    if (sock->bytes_read != 0) {
+        if (client->_cb.on_body(&client->super, NULL) != 0) {
+            close_client(client);
+            return;
+        }
+    }
+
+    h2o_timeout_link(client->super.ctx->loop, client->super.ctx->io_timeout, &client->_timeout);
+}
+
+static void on_body_content_length(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_http1client_private_t *client = sock->data;
+
+    h2o_timeout_unlink(&client->_timeout);
+
+    if (err != NULL) {
+        on_body_error(client, "I/O error (body; content-length)");
+        return;
+    }
+
+    if (sock->bytes_read != 0 || client->_body_decoder.content_length.bytesleft == 0) {
+        const char *errstr;
+        int ret;
+        if (client->_body_decoder.content_length.bytesleft <= sock->bytes_read) {
+            if (client->_body_decoder.content_length.bytesleft < sock->bytes_read) {
+                /* remove the trailing garbage from buf, and disable keepalive */
+                client->super.sock->input->size -= sock->bytes_read - client->_body_decoder.content_length.bytesleft;
+                client->_can_keepalive = 0;
+            }
+            client->_body_decoder.content_length.bytesleft = 0;
+            errstr = h2o_http1client_error_is_eos;
+        } else {
+            client->_body_decoder.content_length.bytesleft -= sock->bytes_read;
+            errstr = NULL;
+        }
+        ret = client->_cb.on_body(&client->super, errstr);
+        if (errstr == h2o_http1client_error_is_eos) {
+            close_client(client);
+            return;
+        } else if (ret != 0) {
+            client->_can_keepalive = 0;
+            close_client(client);
+            return;
+        }
+    }
+
+    h2o_timeout_link(client->super.ctx->loop, client->super.ctx->io_timeout, &client->_timeout);
+}
+
+static void on_body_chunked(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_http1client_private_t *client = sock->data;
+    h2o_buffer_t *inbuf;
+
+    h2o_timeout_unlink(&client->_timeout);
+
+    if (err != NULL) {
+        if (err == h2o_socket_error_closed && !phr_decode_chunked_is_in_data(&client->_body_decoder.chunked.decoder)) {
+            /*
+             * if the peer closed after a full chunk, treat this
+             * as if the transfer had complete, browsers appear to ignore
+             * a missing 0\r\n chunk
+             */
+            client->_can_keepalive = 0;
+            client->_cb.on_body(&client->super, h2o_http1client_error_is_eos);
+            close_client(client);
+        } else {
+            on_body_error(client, "I/O error (body; chunked)");
+        }
+        return;
+    }
+
+    inbuf = client->super.sock->input;
+    if (sock->bytes_read != 0) {
+        const char *errstr;
+        int cb_ret;
+        size_t newsz = sock->bytes_read;
+        switch (phr_decode_chunked(&client->_body_decoder.chunked.decoder, inbuf->bytes + inbuf->size - newsz, &newsz)) {
+        case -1: /* error */
+            newsz = sock->bytes_read;
+            client->_can_keepalive = 0;
+            errstr = "failed to parse the response (chunked)";
+            break;
+        case -2: /* incomplete */
+            errstr = NULL;
+            break;
+        default: /* complete, with garbage on tail; should disable keepalive */
+            client->_can_keepalive = 0;
+        /* fallthru */
+        case 0: /* complete */
+            errstr = h2o_http1client_error_is_eos;
+            break;
+        }
+        inbuf->size -= sock->bytes_read - newsz;
+        cb_ret = client->_cb.on_body(&client->super, errstr);
+        if (errstr != NULL) {
+            close_client(client);
+            return;
+        } else if (cb_ret != 0) {
+            client->_can_keepalive = 0;
+            close_client(client);
+            return;
+        }
+    }
+
+    h2o_timeout_link(client->super.ctx->loop, client->super.ctx->io_timeout, &client->_timeout);
+}
+
+static void on_error_before_head(struct st_h2o_http1client_private_t *client, const char *errstr)
+{
+    assert(!client->_can_keepalive);
+    client->_cb.on_head(&client->super, errstr, 0, 0, h2o_iovec_init(NULL, 0), NULL, 0, 0);
+    close_client(client);
+}
+
+static void on_head(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_http1client_private_t *client = sock->data;
+    int minor_version, http_status, rlen, is_eos;
+    const char *msg;
+#define MAX_HEADERS 100
+    h2o_header_t *headers;
+    h2o_iovec_t *header_names;
+    size_t msg_len, num_headers, i;
+    h2o_socket_cb reader;
+    h2o_mem_pool_t pool;
+
+    h2o_timeout_unlink(&client->_timeout);
+
+    if (err != NULL) {
+        on_error_before_head(client, "I/O error (head)");
+        return;
+    }
+
+    h2o_mem_init_pool(&pool);
+
+    headers = h2o_mem_alloc_pool(&pool, sizeof(*headers) * MAX_HEADERS);
+    header_names = h2o_mem_alloc_pool(&pool, sizeof(*header_names) * MAX_HEADERS);
+
+    /* continue parsing the responses until we see a final one */
+    while (1) {
+        /* parse response */
+        struct phr_header src_headers[MAX_HEADERS];
+        num_headers = MAX_HEADERS;
+        rlen = phr_parse_response(sock->input->bytes, sock->input->size, &minor_version, &http_status, &msg, &msg_len, src_headers,
+                                  &num_headers, 0);
+        switch (rlen) {
+        case -1: /* error */
+            on_error_before_head(client, "failed to parse the response");
+            goto Exit;
+        case -2: /* incomplete */
+            h2o_timeout_link(client->super.ctx->loop, client->super.ctx->io_timeout, &client->_timeout);
+            goto Exit;
+        }
+        /* fill-in the headers */
+        for (i = 0; i != num_headers; ++i) {
+            const h2o_token_t *token;
+            char *orig_name = h2o_strdup(&pool, src_headers[i].name, src_headers[i].name_len).base;
+            h2o_strtolower((char *)src_headers[i].name, src_headers[i].name_len);
+            token = h2o_lookup_token(src_headers[i].name, src_headers[i].name_len);
+            if (token != NULL) {
+                headers[i].name = (h2o_iovec_t *)&token->buf;
+            } else {
+                header_names[i] = h2o_iovec_init(src_headers[i].name, src_headers[i].name_len);
+                headers[i].name = &header_names[i];
+            }
+            headers[i].value = h2o_iovec_init(src_headers[i].value, src_headers[i].value_len);
+            headers[i].orig_name = orig_name;
+        }
+
+        if (!(100 <= http_status && http_status <= 199 && http_status != 101))
+            break;
+
+        if (client->super.informational_cb != NULL &&
+            client->super.informational_cb(&client->super, minor_version, http_status, h2o_iovec_init(msg, msg_len), headers,
+                                           num_headers) != 0) {
+            close_client(client);
+            goto Exit;
+        }
+        h2o_buffer_consume(&client->super.sock->input, rlen);
+        if (client->super.sock->input->size == 0) {
+            h2o_timeout_link(client->super.ctx->loop, client->super.ctx->io_timeout, &client->_timeout);
+            goto Exit;
+        }
+    }
+
+    /* parse the headers */
+    reader = on_body_until_close;
+    client->_can_keepalive = minor_version >= 1;
+    for (i = 0; i != num_headers; ++i) {
+        if (headers[i].name == &H2O_TOKEN_CONNECTION->buf) {
+            if (h2o_contains_token(headers[i].value.base, headers[i].value.len, H2O_STRLIT("keep-alive"), ',')) {
+                client->_can_keepalive = 1;
+            } else {
+                client->_can_keepalive = 0;
+            }
+        } else if (headers[i].name == &H2O_TOKEN_TRANSFER_ENCODING->buf) {
+            if (h2o_memis(headers[i].value.base, headers[i].value.len, H2O_STRLIT("chunked"))) {
+                /* precond: _body_decoder.chunked is zero-filled */
+                client->_body_decoder.chunked.decoder.consume_trailer = 1;
+                reader = on_body_chunked;
+            } else if (h2o_memis(headers[i].value.base, headers[i].value.len, H2O_STRLIT("identity"))) {
+                /* continue */
+            } else {
+                on_error_before_head(client, "unexpected type of transfer-encoding");
+                goto Exit;
+            }
+        } else if (headers[i].name == &H2O_TOKEN_CONTENT_LENGTH->buf) {
+            if ((client->_body_decoder.content_length.bytesleft = h2o_strtosize(headers[i].value.base, headers[i].value.len)) ==
+                SIZE_MAX) {
+                on_error_before_head(client, "invalid content-length");
+                goto Exit;
+            }
+            if (reader != on_body_chunked)
+                reader = on_body_content_length;
+        }
+    }
+
+    /* RFC 2616 4.4 */
+    if (client->_method_is_head || http_status == 101 || http_status == 204 || http_status == 304) {
+        is_eos = 1;
+    } else {
+        is_eos = 0;
+        /* close the connection if impossible to determine the end of the response (RFC 7230 3.3.3) */
+        if (reader == on_body_until_close)
+            client->_can_keepalive = 0;
+    }
+
+    /* call the callback. sock may be stealed and stealed sock need rlen.*/
+    client->_cb.on_body = client->_cb.on_head(&client->super, is_eos ? h2o_http1client_error_is_eos : NULL, minor_version,
+                                              http_status, h2o_iovec_init(msg, msg_len), headers, num_headers, rlen);
+
+    if (is_eos) {
+        close_client(client);
+        goto Exit;
+    } else if (client->_cb.on_body == NULL) {
+        client->_can_keepalive = 0;
+        close_client(client);
+        goto Exit;
+    }
+
+    h2o_buffer_consume(&client->super.sock->input, rlen);
+    client->super.sock->bytes_read = client->super.sock->input->size;
+
+    client->_timeout.cb = on_body_timeout;
+    h2o_socket_read_start(sock, reader);
+    reader(client->super.sock, 0);
+
+Exit:
+    h2o_mem_clear_pool(&pool);
+#undef MAX_HEADERS
+}
+
+static void on_head_timeout(h2o_timeout_entry_t *entry)
+{
+    struct st_h2o_http1client_private_t *client = H2O_STRUCT_FROM_MEMBER(struct st_h2o_http1client_private_t, _timeout, entry);
+    on_error_before_head(client, "I/O timeout");
+}
+
+static void on_send_request(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_http1client_private_t *client = sock->data;
+
+    h2o_timeout_unlink(&client->_timeout);
+
+    if (err != NULL) {
+        on_error_before_head(client, "I/O error (send request)");
+        return;
+    }
+
+    h2o_socket_read_start(client->super.sock, on_head);
+    client->_timeout.cb = on_head_timeout;
+    h2o_timeout_link(client->super.ctx->loop, client->super.ctx->io_timeout, &client->_timeout);
+}
+
+static void on_send_timeout(h2o_timeout_entry_t *entry)
+{
+    struct st_h2o_http1client_private_t *client = H2O_STRUCT_FROM_MEMBER(struct st_h2o_http1client_private_t, _timeout, entry);
+    on_error_before_head(client, "I/O timeout");
+}
+
+static void on_connect_error(struct st_h2o_http1client_private_t *client, const char *errstr)
+{
+    assert(errstr != NULL);
+    client->_cb.on_connect(&client->super, errstr, NULL, NULL, NULL);
+    close_client(client);
+}
+
+static void on_connection_ready(struct st_h2o_http1client_private_t *client)
+{
+    h2o_iovec_t *reqbufs;
+    size_t reqbufcnt;
+
+    if ((client->_cb.on_head = client->_cb.on_connect(&client->super, NULL, &reqbufs, &reqbufcnt, &client->_method_is_head)) ==
+        NULL) {
+        close_client(client);
+        return;
+    }
+    h2o_socket_write(client->super.sock, reqbufs, reqbufcnt, on_send_request);
+    /* TODO no need to set the timeout if all data has been written into TCP sendbuf */
+    client->_timeout.cb = on_send_timeout;
+    h2o_timeout_link(client->super.ctx->loop, client->super.ctx->io_timeout, &client->_timeout);
+}
+
+static void on_handshake_complete(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_http1client_private_t *client = sock->data;
+
+    h2o_timeout_unlink(&client->_timeout);
+
+    if (err == NULL) {
+        /* success */
+    } else if (err == h2o_socket_error_ssl_cert_name_mismatch &&
+               (SSL_CTX_get_verify_mode(client->super.ctx->ssl_ctx) & SSL_VERIFY_PEER) == 0) {
+        /* peer verification skipped */
+    } else {
+        on_connect_error(client, err);
+        return;
+    }
+
+    on_connection_ready(client);
+}
+
+static void on_connect(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_http1client_private_t *client = sock->data;
+
+    if (err != NULL) {
+        h2o_timeout_unlink(&client->_timeout);
+        on_connect_error(client, err);
+        return;
+    }
+    if (client->super.ssl.server_name != NULL && client->super.sock->ssl == NULL) {
+        h2o_socket_ssl_handshake(client->super.sock, client->super.ctx->ssl_ctx, client->super.ssl.server_name,
+                                 on_handshake_complete);
+        return;
+    }
+
+    h2o_timeout_unlink(&client->_timeout);
+
+    on_connection_ready(client);
+}
+
+static void on_pool_connect(h2o_socket_t *sock, const char *errstr, void *data)
+{
+    struct st_h2o_http1client_private_t *client = data;
+
+    client->super.sockpool.connect_req = NULL;
+
+    if (sock == NULL) {
+        assert(errstr != NULL);
+        on_connect_error(client, errstr);
+        return;
+    }
+
+    client->super.sock = sock;
+    sock->data = client;
+    on_connect(sock, NULL);
+}
+
+static void on_connect_timeout(h2o_timeout_entry_t *entry)
+{
+    struct st_h2o_http1client_private_t *client = H2O_STRUCT_FROM_MEMBER(struct st_h2o_http1client_private_t, _timeout, entry);
+    on_connect_error(client, "connection timeout");
+}
+
+static void start_connect(struct st_h2o_http1client_private_t *client, struct sockaddr *addr, socklen_t addrlen)
+{
+    if ((client->super.sock = h2o_socket_connect(client->super.ctx->loop, addr, addrlen, on_connect)) == NULL) {
+        on_connect_error(client, "socket create error");
+        return;
+    }
+    client->super.sock->data = client;
+}
+
+static void on_getaddr(h2o_hostinfo_getaddr_req_t *getaddr_req, const char *errstr, struct addrinfo *res, void *_client)
+{
+    struct st_h2o_http1client_private_t *client = _client;
+
+    assert(getaddr_req == client->_getaddr_req);
+    client->_getaddr_req = NULL;
+
+    if (errstr != NULL) {
+        on_connect_error(client, errstr);
+        return;
+    }
+
+    /* start connecting */
+    struct addrinfo *selected = h2o_hostinfo_select_one(res);
+    start_connect(client, selected->ai_addr, selected->ai_addrlen);
+}
+
+static struct st_h2o_http1client_private_t *create_client(h2o_http1client_t **_client, void *data, h2o_http1client_ctx_t *ctx,
+                                                          h2o_iovec_t ssl_server_name, h2o_http1client_connect_cb cb)
+{
+    struct st_h2o_http1client_private_t *client = h2o_mem_alloc(sizeof(*client));
+
+    *client = (struct st_h2o_http1client_private_t){{ctx}};
+    if (ssl_server_name.base != NULL)
+        client->super.ssl.server_name = h2o_strdup(NULL, ssl_server_name.base, ssl_server_name.len).base;
+    client->super.data = data;
+    client->_cb.on_connect = cb;
+    /* caller needs to setup _cb, timeout.cb, sock, and sock->data */
+
+    if (_client != NULL)
+        *_client = &client->super;
+    return client;
+}
+
+const char *const h2o_http1client_error_is_eos = "end of stream";
+
+void h2o_http1client_connect(h2o_http1client_t **_client, void *data, h2o_http1client_ctx_t *ctx, h2o_iovec_t host, uint16_t port,
+                             int is_ssl, h2o_http1client_connect_cb cb)
+{
+    struct st_h2o_http1client_private_t *client;
+    char serv[sizeof("65536")];
+
+    /* setup */
+    client = create_client(_client, data, ctx, is_ssl ? host : h2o_iovec_init(NULL, 0), cb);
+    client->_timeout.cb = on_connect_timeout;
+    h2o_timeout_link(ctx->loop, ctx->io_timeout, &client->_timeout);
+
+    { /* directly call connect(2) if `host` is an IP address */
+        struct sockaddr_in sin;
+        memset(&sin, 0, sizeof(sin));
+        if (h2o_hostinfo_aton(host, &sin.sin_addr) == 0) {
+            sin.sin_family = AF_INET;
+            sin.sin_port = htons(port);
+            start_connect(client, (void *)&sin, sizeof(sin));
+            return;
+        }
+    }
+    { /* directly call connect(2) if `host` refers to an UNIX-domain socket */
+        struct sockaddr_un sa;
+        const char *to_sa_err;
+        if ((to_sa_err = h2o_url_host_to_sun(host, &sa)) != h2o_url_host_to_sun_err_is_not_unix_socket) {
+            if (to_sa_err != NULL) {
+                on_connect_error(client, to_sa_err);
+                return;
+            }
+            start_connect(client, (void *)&sa, sizeof(sa));
+            return;
+        }
+    }
+    /* resolve destination and then connect */
+    client->_getaddr_req =
+        h2o_hostinfo_getaddr(ctx->getaddr_receiver, host, h2o_iovec_init(serv, sprintf(serv, "%u", (unsigned)port)), AF_UNSPEC,
+                             SOCK_STREAM, IPPROTO_TCP, AI_ADDRCONFIG | AI_NUMERICSERV, on_getaddr, client);
+}
+
+void h2o_http1client_connect_with_pool(h2o_http1client_t **_client, void *data, h2o_http1client_ctx_t *ctx,
+                                       h2o_socketpool_t *sockpool, h2o_http1client_connect_cb cb)
+{
+    struct st_h2o_http1client_private_t *client =
+        create_client(_client, data, ctx, sockpool->is_ssl ? sockpool->peer.host : h2o_iovec_init(NULL, 0), cb);
+    client->super.sockpool.pool = sockpool;
+    client->_timeout.cb = on_connect_timeout;
+    h2o_timeout_link(ctx->loop, ctx->io_timeout, &client->_timeout);
+    h2o_socketpool_connect(&client->super.sockpool.connect_req, sockpool, ctx->loop, ctx->getaddr_receiver, on_pool_connect,
+                           client);
+}
+
+void h2o_http1client_cancel(h2o_http1client_t *_client)
+{
+    struct st_h2o_http1client_private_t *client = (void *)_client;
+    client->_can_keepalive = 0;
+    close_client(client);
+}
+
+h2o_socket_t *h2o_http1client_steal_socket(h2o_http1client_t *_client)
+{
+    struct st_h2o_http1client_private_t *client = (void *)_client;
+    h2o_socket_t *sock = client->super.sock;
+    h2o_socket_read_stop(sock);
+    client->super.sock = NULL;
+    return sock;
+}
diff --git a/debian/vendor-h2o/lib/common/memcached.c b/debian/vendor-h2o/lib/common/memcached.c
new file mode 100644
index 0000000..752ea2f
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/memcached.c
@@ -0,0 +1,429 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <errno.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include "yrmcds.h"
+#include "h2o/linklist.h"
+#include "h2o/memcached.h"
+#include "h2o/rand.h"
+#include "h2o/string_.h"
+
+struct st_h2o_memcached_context_t {
+    pthread_mutex_t mutex;
+    pthread_cond_t cond;
+    h2o_linklist_t pending;
+    size_t num_threads_connected;
+    char *host;
+    uint16_t port;
+    int text_protocol;
+    h2o_iovec_t prefix;
+};
+
+struct st_h2o_memcached_conn_t {
+    h2o_memcached_context_t *ctx;
+    yrmcds yrmcds;
+    pthread_mutex_t mutex;
+    h2o_linklist_t inflight;
+    int writer_exit_requested;
+};
+
+enum en_h2o_memcached_req_type_t { REQ_TYPE_GET, REQ_TYPE_SET, REQ_TYPE_DELETE };
+
+struct st_h2o_memcached_req_t {
+    enum en_h2o_memcached_req_type_t type;
+    h2o_linklist_t pending;
+    h2o_linklist_t inflight;
+    union {
+        struct {
+            h2o_multithread_receiver_t *receiver;
+            h2o_multithread_message_t message;
+            h2o_memcached_get_cb cb;
+            void *cb_data;
+            int value_is_encoded;
+            h2o_iovec_t value;
+            uint32_t serial;
+        } get;
+        struct {
+            h2o_iovec_t value;
+            uint32_t expiration;
+        } set;
+    } data;
+    struct {
+        size_t len;
+        char base[1];
+    } key;
+};
+
+static h2o_memcached_req_t *create_req(h2o_memcached_context_t *ctx, enum en_h2o_memcached_req_type_t type, h2o_iovec_t key,
+                                       int encode_key)
+{
+    h2o_memcached_req_t *req = h2o_mem_alloc(offsetof(h2o_memcached_req_t, key.base) + ctx->prefix.len +
+                                             (encode_key ? (key.len + 2) / 3 * 4 + 1 : key.len));
+    req->type = type;
+    req->pending = (h2o_linklist_t){NULL};
+    req->inflight = (h2o_linklist_t){NULL};
+    memset(&req->data, 0, sizeof(req->data));
+    if (ctx->prefix.len != 0)
+        memcpy(req->key.base, ctx->prefix.base, ctx->prefix.len);
+    req->key.len = ctx->prefix.len;
+    if (encode_key) {
+        req->key.len += h2o_base64_encode(req->key.base + req->key.len, key.base, key.len, 1);
+    } else {
+        memcpy(req->key.base + req->key.len, key.base, key.len);
+        req->key.len += key.len;
+    }
+    return req;
+}
+
+static void free_req(h2o_memcached_req_t *req)
+{
+    assert(!h2o_linklist_is_linked(&req->pending));
+    switch (req->type) {
+    case REQ_TYPE_GET:
+        assert(!h2o_linklist_is_linked(&req->data.get.message.link));
+        h2o_mem_set_secure(req->data.get.value.base, 0, req->data.get.value.len);
+        free(req->data.get.value.base);
+        break;
+    case REQ_TYPE_SET:
+        h2o_mem_set_secure(req->data.set.value.base, 0, req->data.set.value.len);
+        free(req->data.set.value.base);
+        break;
+    case REQ_TYPE_DELETE:
+        break;
+    default:
+        assert(!"FIXME");
+        break;
+    }
+    free(req);
+}
+
+static void discard_req(h2o_memcached_req_t *req)
+{
+    switch (req->type) {
+    case REQ_TYPE_GET:
+        h2o_multithread_send_message(req->data.get.receiver, &req->data.get.message);
+        break;
+    default:
+        free_req(req);
+        break;
+    }
+}
+
+static h2o_memcached_req_t *pop_inflight(struct st_h2o_memcached_conn_t *conn, uint32_t serial)
+{
+    h2o_memcached_req_t *req;
+
+    pthread_mutex_lock(&conn->mutex);
+
+    if (conn->yrmcds.text_mode) {
+        /* in text mode, responses are returned in order (and we may receive responses for commands other than GET) */
+        if (!h2o_linklist_is_empty(&conn->inflight)) {
+            req = H2O_STRUCT_FROM_MEMBER(h2o_memcached_req_t, inflight, conn->inflight.next);
+            assert(req->type == REQ_TYPE_GET);
+            if (req->data.get.serial == serial)
+                goto Found;
+        }
+    } else {
+        /* in binary mode, responses are received out-of-order (and we would only recieve responses for GET) */
+        h2o_linklist_t *node;
+        for (node = conn->inflight.next; node != &conn->inflight; node = node->next) {
+            req = H2O_STRUCT_FROM_MEMBER(h2o_memcached_req_t, inflight, node);
+            assert(req->type == REQ_TYPE_GET);
+            if (req->data.get.serial == serial)
+                goto Found;
+        }
+    }
+
+    /* not found */
+    pthread_mutex_unlock(&conn->mutex);
+    return NULL;
+
+Found:
+    h2o_linklist_unlink(&req->inflight);
+    pthread_mutex_unlock(&conn->mutex);
+    return req;
+}
+
+static void *writer_main(void *_conn)
+{
+    struct st_h2o_memcached_conn_t *conn = _conn;
+    yrmcds_error err;
+
+    pthread_mutex_lock(&conn->ctx->mutex);
+
+    while (!__sync_add_and_fetch(&conn->writer_exit_requested, 0)) {
+        while (!h2o_linklist_is_empty(&conn->ctx->pending)) {
+            h2o_memcached_req_t *req = H2O_STRUCT_FROM_MEMBER(h2o_memcached_req_t, pending, conn->ctx->pending.next);
+            h2o_linklist_unlink(&req->pending);
+            pthread_mutex_unlock(&conn->ctx->mutex);
+
+            switch (req->type) {
+            case REQ_TYPE_GET:
+                pthread_mutex_lock(&conn->mutex);
+                h2o_linklist_insert(&conn->inflight, &req->inflight);
+                pthread_mutex_unlock(&conn->mutex);
+                if ((err = yrmcds_get(&conn->yrmcds, req->key.base, req->key.len, 0, &req->data.get.serial)) != YRMCDS_OK)
+                    goto Error;
+                break;
+            case REQ_TYPE_SET:
+                err = yrmcds_set(&conn->yrmcds, req->key.base, req->key.len, req->data.set.value.base, req->data.set.value.len, 0,
+                                 req->data.set.expiration, 0, !conn->yrmcds.text_mode, NULL);
+                discard_req(req);
+                if (err != YRMCDS_OK)
+                    goto Error;
+                break;
+            case REQ_TYPE_DELETE:
+                err = yrmcds_remove(&conn->yrmcds, req->key.base, req->key.len, !conn->yrmcds.text_mode, NULL);
+                discard_req(req);
+                if (err != YRMCDS_OK)
+                    goto Error;
+                break;
+            default:
+                fprintf(stderr, "[lib/common/memcached.c] unknown type:%d\n", (int)req->type);
+                err = YRMCDS_NOT_IMPLEMENTED;
+                goto Error;
+            }
+
+            pthread_mutex_lock(&conn->ctx->mutex);
+        }
+        pthread_cond_wait(&conn->ctx->cond, &conn->ctx->mutex);
+    }
+
+    pthread_mutex_unlock(&conn->ctx->mutex);
+    return NULL;
+
+Error:
+    fprintf(stderr, "[lib/common/memcached.c] failed to send request; %s\n", yrmcds_strerror(err));
+    /* doc says the call can be used to interrupt yrmcds_recv */
+    yrmcds_shutdown(&conn->yrmcds);
+
+    return NULL;
+}
+
+static void connect_to_server(h2o_memcached_context_t *ctx, yrmcds *yrmcds)
+{
+    size_t failcnt;
+    yrmcds_error err;
+
+    for (failcnt = 0; (err = yrmcds_connect(yrmcds, ctx->host, ctx->port)) != YRMCDS_OK; ++failcnt) {
+        if (failcnt == 0) {
+            fprintf(stderr, "[lib/common/memcached.c] failed to connect to memcached at %s:%" PRIu16 ", %s\n", ctx->host, ctx->port,
+                    yrmcds_strerror(err));
+        }
+        ++failcnt;
+        usleep(2000000 + h2o_rand() % 3000000); /* sleep 2 to 5 seconds */
+    }
+    /* connected */
+    if (ctx->text_protocol)
+        yrmcds_text_mode(yrmcds);
+    fprintf(stderr, "[lib/common/memcached.c] connected to memcached at %s:%" PRIu16 "\n", ctx->host, ctx->port);
+}
+
+static void reader_main(h2o_memcached_context_t *ctx)
+{
+    struct st_h2o_memcached_conn_t conn = {ctx, {0}, PTHREAD_MUTEX_INITIALIZER, {&conn.inflight, &conn.inflight}, 0};
+    pthread_t writer_thread;
+    yrmcds_response resp;
+    yrmcds_error err;
+
+    /* connect to server and start the writer thread */
+    connect_to_server(conn.ctx, &conn.yrmcds);
+    if (pthread_create(&writer_thread, NULL, writer_main, &conn) != 0) {
+        perror("pthread_create");
+        abort();
+    }
+
+    pthread_mutex_lock(&conn.ctx->mutex);
+    ++conn.ctx->num_threads_connected;
+    pthread_mutex_unlock(&conn.ctx->mutex);
+
+    /* receive data until an error occurs */
+    while (1) {
+        if ((err = yrmcds_recv(&conn.yrmcds, &resp)) != YRMCDS_OK) {
+            fprintf(stderr, "[lib/common/memcached.c] yrmcds_recv:%s\n", yrmcds_strerror(err));
+            break;
+        }
+        h2o_memcached_req_t *req = pop_inflight(&conn, resp.serial);
+        if (req == NULL) {
+            if (conn.yrmcds.text_mode)
+                continue;
+            fprintf(stderr, "[lib/common/memcached.c] received unexpected serial\n");
+            break;
+        }
+        if (resp.status == YRMCDS_STATUS_OK) {
+            req->data.get.value = h2o_iovec_init(h2o_mem_alloc(resp.data_len), resp.data_len);
+            memcpy(req->data.get.value.base, resp.data, resp.data_len);
+            h2o_mem_set_secure((void *)resp.data, 0, resp.data_len);
+        }
+        h2o_multithread_send_message(req->data.get.receiver, &req->data.get.message);
+    }
+
+    /* send error to all the reqs in-flight */
+    pthread_mutex_lock(&conn.mutex);
+    while (!h2o_linklist_is_empty(&conn.inflight)) {
+        h2o_memcached_req_t *req = H2O_STRUCT_FROM_MEMBER(h2o_memcached_req_t, inflight, conn.inflight.next);
+        h2o_linklist_unlink(&req->inflight);
+        assert(req->type == REQ_TYPE_GET);
+        h2o_multithread_send_message(req->data.get.receiver, &req->data.get.message);
+    }
+    pthread_mutex_unlock(&conn.mutex);
+
+    /* stop the writer thread */
+    __sync_add_and_fetch(&conn.writer_exit_requested, 1);
+    pthread_mutex_lock(&conn.ctx->mutex);
+    pthread_cond_broadcast(&conn.ctx->cond);
+    pthread_mutex_unlock(&conn.ctx->mutex);
+    pthread_join(writer_thread, NULL);
+
+    /* decrement num_threads_connected, and discard all the pending requests if no connections are alive */
+    pthread_mutex_lock(&conn.ctx->mutex);
+    if (--conn.ctx->num_threads_connected == 0) {
+        while (!h2o_linklist_is_empty(&conn.ctx->pending)) {
+            h2o_memcached_req_t *req = H2O_STRUCT_FROM_MEMBER(h2o_memcached_req_t, pending, conn.ctx->pending.next);
+            h2o_linklist_unlink(&req->pending);
+            discard_req(req);
+        }
+    }
+    pthread_mutex_unlock(&conn.ctx->mutex);
+
+    /* close the connection */
+    yrmcds_close(&conn.yrmcds);
+}
+
+static void *thread_main(void *_ctx)
+{
+    h2o_memcached_context_t *ctx = _ctx;
+
+    while (1)
+        reader_main(ctx);
+    return NULL;
+}
+
+static void dispatch(h2o_memcached_context_t *ctx, h2o_memcached_req_t *req)
+{
+    pthread_mutex_lock(&ctx->mutex);
+
+    if (ctx->num_threads_connected != 0) {
+        h2o_linklist_insert(&ctx->pending, &req->pending);
+        pthread_cond_signal(&ctx->cond);
+    } else {
+        discard_req(req);
+    }
+
+    pthread_mutex_unlock(&ctx->mutex);
+}
+
+void h2o_memcached_receiver(h2o_multithread_receiver_t *receiver, h2o_linklist_t *messages)
+{
+    while (!h2o_linklist_is_empty(messages)) {
+        h2o_memcached_req_t *req = H2O_STRUCT_FROM_MEMBER(h2o_memcached_req_t, data.get.message.link, messages->next);
+        h2o_linklist_unlink(&req->data.get.message.link);
+        assert(req->type == REQ_TYPE_GET);
+        if (req->data.get.cb != NULL) {
+            if (req->data.get.value_is_encoded && req->data.get.value.len != 0) {
+                h2o_iovec_t decoded = h2o_decode_base64url(NULL, req->data.get.value.base, req->data.get.value.len);
+                h2o_mem_set_secure(req->data.get.value.base, 0, req->data.get.value.len);
+                free(req->data.get.value.base);
+                req->data.get.value = decoded;
+            }
+            req->data.get.cb(req->data.get.value, req->data.get.cb_data);
+        }
+        free_req(req);
+    }
+}
+
+h2o_memcached_req_t *h2o_memcached_get(h2o_memcached_context_t *ctx, h2o_multithread_receiver_t *receiver, h2o_iovec_t key,
+                                       h2o_memcached_get_cb cb, void *cb_data, int flags)
+{
+    h2o_memcached_req_t *req = create_req(ctx, REQ_TYPE_GET, key, (flags & H2O_MEMCACHED_ENCODE_KEY) != 0);
+    req->data.get.receiver = receiver;
+    req->data.get.cb = cb;
+    req->data.get.cb_data = cb_data;
+    req->data.get.value_is_encoded = (flags & H2O_MEMCACHED_ENCODE_VALUE) != 0;
+    dispatch(ctx, req);
+    return req;
+}
+
+void h2o_memcached_cancel_get(h2o_memcached_context_t *ctx, h2o_memcached_req_t *req)
+{
+    int do_free = 0;
+
+    pthread_mutex_lock(&ctx->mutex);
+    req->data.get.cb = NULL;
+    if (h2o_linklist_is_linked(&req->pending)) {
+        h2o_linklist_unlink(&req->pending);
+        do_free = 1;
+    }
+    pthread_mutex_unlock(&ctx->mutex);
+
+    if (do_free)
+        free_req(req);
+}
+
+void h2o_memcached_set(h2o_memcached_context_t *ctx, h2o_iovec_t key, h2o_iovec_t value, uint32_t expiration, int flags)
+{
+    h2o_memcached_req_t *req = create_req(ctx, REQ_TYPE_SET, key, (flags & H2O_MEMCACHED_ENCODE_KEY) != 0);
+    if ((flags & H2O_MEMCACHED_ENCODE_VALUE) != 0) {
+        req->data.set.value.base = h2o_mem_alloc((value.len + 2) / 3 * 4 + 1);
+        req->data.set.value.len = h2o_base64_encode(req->data.set.value.base, value.base, value.len, 1);
+    } else {
+        req->data.set.value = h2o_iovec_init(h2o_mem_alloc(value.len), value.len);
+        memcpy(req->data.set.value.base, value.base, value.len);
+    }
+    req->data.set.expiration = expiration;
+    dispatch(ctx, req);
+}
+
+void h2o_memcached_delete(h2o_memcached_context_t *ctx, h2o_iovec_t key, int flags)
+{
+    h2o_memcached_req_t *req = create_req(ctx, REQ_TYPE_DELETE, key, (flags & H2O_MEMCACHED_ENCODE_KEY) != 0);
+    dispatch(ctx, req);
+}
+
+h2o_memcached_context_t *h2o_memcached_create_context(const char *host, uint16_t port, int text_protocol, size_t num_threads,
+                                                      const char *prefix)
+{
+    h2o_memcached_context_t *ctx = h2o_mem_alloc(sizeof(*ctx));
+
+    pthread_mutex_init(&ctx->mutex, NULL);
+    pthread_cond_init(&ctx->cond, NULL);
+    h2o_linklist_init_anchor(&ctx->pending);
+    ctx->num_threads_connected = 0;
+    ctx->host = h2o_strdup(NULL, host, SIZE_MAX).base;
+    ctx->port = port;
+    ctx->text_protocol = text_protocol;
+    ctx->prefix = h2o_strdup(NULL, prefix, SIZE_MAX);
+
+    { /* start the threads */
+        pthread_t tid;
+        pthread_attr_t attr;
+        size_t i;
+        pthread_attr_init(&attr);
+        pthread_attr_setdetachstate(&attr, 1);
+        for (i = 0; i != num_threads; ++i)
+            h2o_multithread_create_thread(&tid, &attr, thread_main, ctx);
+        pthread_attr_destroy(&attr);
+    }
+
+    return ctx;
+}
diff --git a/debian/vendor-h2o/lib/common/memory.c b/debian/vendor-h2o/lib/common/memory.c
new file mode 100644
index 0000000..ba9f2db
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/memory.c
@@ -0,0 +1,400 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include "h2o/memory.h"
+
+#if defined(__linux__)
+#define USE_POSIX_FALLOCATE 1
+#elif __FreeBSD__ >= 9
+#define USE_POSIX_FALLOCATE 1
+#elif __NetBSD__ >= 7
+#define USE_POSIX_FALLOCATE 1
+#else
+#define USE_POSIX_FALLOCATE 0
+#endif
+
+struct st_h2o_mem_recycle_chunk_t {
+    struct st_h2o_mem_recycle_chunk_t *next;
+};
+
+struct st_h2o_mem_pool_chunk_t {
+    struct st_h2o_mem_pool_chunk_t *next;
+    size_t _dummy; /* align to 2*sizeof(void*) */
+    char bytes[4096 - sizeof(void *) * 2];
+};
+
+struct st_h2o_mem_pool_direct_t {
+    struct st_h2o_mem_pool_direct_t *next;
+    size_t _dummy; /* align to 2*sizeof(void*) */
+    char bytes[1];
+};
+
+struct st_h2o_mem_pool_shared_ref_t {
+    struct st_h2o_mem_pool_shared_ref_t *next;
+    struct st_h2o_mem_pool_shared_entry_t *entry;
+};
+
+void *(*h2o_mem__set_secure)(void *, int, size_t) = memset;
+
+static __thread h2o_mem_recycle_t mempool_allocator = {16};
+
+void h2o__fatal(const char *msg)
+{
+    fprintf(stderr, "fatal:%s\n", msg);
+    abort();
+}
+
+void *h2o_mem_alloc_recycle(h2o_mem_recycle_t *allocator, size_t sz)
+{
+    struct st_h2o_mem_recycle_chunk_t *chunk;
+    if (allocator->cnt == 0)
+        return h2o_mem_alloc(sz);
+    /* detach and return the pooled pointer */
+    chunk = allocator->_link;
+    assert(chunk != NULL);
+    allocator->_link = chunk->next;
+    --allocator->cnt;
+    return chunk;
+}
+
+void h2o_mem_free_recycle(h2o_mem_recycle_t *allocator, void *p)
+{
+    struct st_h2o_mem_recycle_chunk_t *chunk;
+    if (allocator->cnt == allocator->max) {
+        free(p);
+        return;
+    }
+    /* register the pointer to the pool */
+    chunk = p;
+    chunk->next = allocator->_link;
+    allocator->_link = chunk;
+    ++allocator->cnt;
+}
+
+void h2o_mem_init_pool(h2o_mem_pool_t *pool)
+{
+    pool->chunks = NULL;
+    pool->chunk_offset = sizeof(pool->chunks->bytes);
+    pool->directs = NULL;
+    pool->shared_refs = NULL;
+}
+
+void h2o_mem_clear_pool(h2o_mem_pool_t *pool)
+{
+    /* release the refcounted chunks */
+    if (pool->shared_refs != NULL) {
+        struct st_h2o_mem_pool_shared_ref_t *ref = pool->shared_refs;
+        do {
+            h2o_mem_release_shared(ref->entry->bytes);
+        } while ((ref = ref->next) != NULL);
+        pool->shared_refs = NULL;
+    }
+    /* release the direct chunks */
+    if (pool->directs != NULL) {
+        struct st_h2o_mem_pool_direct_t *direct = pool->directs, *next;
+        do {
+            next = direct->next;
+            free(direct);
+        } while ((direct = next) != NULL);
+        pool->directs = NULL;
+    }
+    /* free chunks, and reset the first chunk */
+    while (pool->chunks != NULL) {
+        struct st_h2o_mem_pool_chunk_t *next = pool->chunks->next;
+        h2o_mem_free_recycle(&mempool_allocator, pool->chunks);
+        pool->chunks = next;
+    }
+    pool->chunk_offset = sizeof(pool->chunks->bytes);
+}
+
+void *h2o_mem_alloc_pool(h2o_mem_pool_t *pool, size_t sz)
+{
+    void *ret;
+
+    if (sz >= sizeof(pool->chunks->bytes) / 4) {
+        /* allocate large requests directly */
+        struct st_h2o_mem_pool_direct_t *newp = h2o_mem_alloc(offsetof(struct st_h2o_mem_pool_direct_t, bytes) + sz);
+        newp->next = pool->directs;
+        pool->directs = newp;
+        return newp->bytes;
+    }
+
+    /* return a valid pointer even for 0 sized allocs */
+    if (sz == 0)
+        sz = 1;
+
+    /* 16-bytes rounding */
+    sz = (sz + 15) & ~15;
+    if (sizeof(pool->chunks->bytes) - pool->chunk_offset < sz) {
+        /* allocate new chunk */
+        struct st_h2o_mem_pool_chunk_t *newp = h2o_mem_alloc_recycle(&mempool_allocator, sizeof(*newp));
+        newp->next = pool->chunks;
+        pool->chunks = newp;
+        pool->chunk_offset = 0;
+    }
+
+    ret = pool->chunks->bytes + pool->chunk_offset;
+    pool->chunk_offset += sz;
+    return ret;
+}
+
+static void link_shared(h2o_mem_pool_t *pool, struct st_h2o_mem_pool_shared_entry_t *entry)
+{
+    struct st_h2o_mem_pool_shared_ref_t *ref = h2o_mem_alloc_pool(pool, sizeof(struct st_h2o_mem_pool_shared_ref_t));
+    ref->entry = entry;
+    ref->next = pool->shared_refs;
+    pool->shared_refs = ref;
+}
+
+void *h2o_mem_alloc_shared(h2o_mem_pool_t *pool, size_t sz, void (*dispose)(void *))
+{
+    struct st_h2o_mem_pool_shared_entry_t *entry = h2o_mem_alloc(offsetof(struct st_h2o_mem_pool_shared_entry_t, bytes) + sz);
+    entry->refcnt = 1;
+    entry->dispose = dispose;
+    if (pool != NULL)
+        link_shared(pool, entry);
+    return entry->bytes;
+}
+
+void h2o_mem_link_shared(h2o_mem_pool_t *pool, void *p)
+{
+    h2o_mem_addref_shared(p);
+    link_shared(pool, H2O_STRUCT_FROM_MEMBER(struct st_h2o_mem_pool_shared_entry_t, bytes, p));
+}
+
+static size_t topagesize(size_t capacity)
+{
+    size_t pagesize = getpagesize();
+    return (offsetof(h2o_buffer_t, _buf) + capacity + pagesize - 1) / pagesize * pagesize;
+}
+
+void h2o_buffer__do_free(h2o_buffer_t *buffer)
+{
+    /* caller should assert that the buffer is not part of the prototype */
+    if (buffer->capacity == buffer->_prototype->_initial_buf.capacity) {
+        h2o_mem_free_recycle(&buffer->_prototype->allocator, buffer);
+    } else if (buffer->_fd != -1) {
+        close(buffer->_fd);
+        munmap((void *)buffer, topagesize(buffer->capacity));
+    } else {
+        free(buffer);
+    }
+}
+
+h2o_iovec_t h2o_buffer_reserve(h2o_buffer_t **_inbuf, size_t min_guarantee)
+{
+    h2o_buffer_t *inbuf = *_inbuf;
+    h2o_iovec_t ret;
+
+    if (inbuf->bytes == NULL) {
+        h2o_buffer_prototype_t *prototype = H2O_STRUCT_FROM_MEMBER(h2o_buffer_prototype_t, _initial_buf, inbuf);
+        if (min_guarantee <= prototype->_initial_buf.capacity) {
+            min_guarantee = prototype->_initial_buf.capacity;
+            inbuf = h2o_mem_alloc_recycle(&prototype->allocator, offsetof(h2o_buffer_t, _buf) + min_guarantee);
+        } else {
+            inbuf = h2o_mem_alloc(offsetof(h2o_buffer_t, _buf) + min_guarantee);
+        }
+        *_inbuf = inbuf;
+        inbuf->size = 0;
+        inbuf->bytes = inbuf->_buf;
+        inbuf->capacity = min_guarantee;
+        inbuf->_prototype = prototype;
+        inbuf->_fd = -1;
+    } else {
+        if (min_guarantee <= inbuf->capacity - inbuf->size - (inbuf->bytes - inbuf->_buf)) {
+            /* ok */
+        } else if ((inbuf->size + min_guarantee) * 2 <= inbuf->capacity) {
+            /* the capacity should be less than or equal to 2 times of: size + guarantee */
+            memmove(inbuf->_buf, inbuf->bytes, inbuf->size);
+            inbuf->bytes = inbuf->_buf;
+        } else {
+            size_t new_capacity = inbuf->capacity;
+            do {
+                new_capacity *= 2;
+            } while (new_capacity - inbuf->size < min_guarantee);
+            if (inbuf->_prototype->mmap_settings != NULL && inbuf->_prototype->mmap_settings->threshold <= new_capacity) {
+                size_t new_allocsize = topagesize(new_capacity);
+                int fd;
+                h2o_buffer_t *newp;
+                if (inbuf->_fd == -1) {
+                    char *tmpfn = alloca(strlen(inbuf->_prototype->mmap_settings->fn_template) + 1);
+                    strcpy(tmpfn, inbuf->_prototype->mmap_settings->fn_template);
+                    if ((fd = mkstemp(tmpfn)) == -1) {
+                        fprintf(stderr, "failed to create temporary file:%s:%s\n", tmpfn, strerror(errno));
+                        goto MapError;
+                    }
+                    unlink(tmpfn);
+                } else {
+                    fd = inbuf->_fd;
+                }
+                int fallocate_ret;
+#if USE_POSIX_FALLOCATE
+                fallocate_ret = posix_fallocate(fd, 0, new_allocsize);
+#else
+                fallocate_ret = ftruncate(fd, new_allocsize);
+#endif
+                if (fallocate_ret != 0) {
+                    perror("failed to resize temporary file");
+                    goto MapError;
+                }
+                if ((newp = (void *)mmap(NULL, new_allocsize, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) == MAP_FAILED) {
+                    perror("mmap failed");
+                    goto MapError;
+                }
+                if (inbuf->_fd == -1) {
+                    /* copy data (moving from malloc to mmap) */
+                    newp->size = inbuf->size;
+                    newp->bytes = newp->_buf;
+                    newp->capacity = new_capacity;
+                    newp->_prototype = inbuf->_prototype;
+                    newp->_fd = fd;
+                    memcpy(newp->_buf, inbuf->bytes, inbuf->size);
+                    h2o_buffer__do_free(inbuf);
+                    *_inbuf = inbuf = newp;
+                } else {
+                    /* munmap */
+                    size_t offset = inbuf->bytes - inbuf->_buf;
+                    munmap((void *)inbuf, topagesize(inbuf->capacity));
+                    *_inbuf = inbuf = newp;
+                    inbuf->capacity = new_capacity;
+                    inbuf->bytes = newp->_buf + offset;
+                }
+            } else {
+                h2o_buffer_t *newp = h2o_mem_alloc(offsetof(h2o_buffer_t, _buf) + new_capacity);
+                newp->size = inbuf->size;
+                newp->bytes = newp->_buf;
+                newp->capacity = new_capacity;
+                newp->_prototype = inbuf->_prototype;
+                newp->_fd = -1;
+                memcpy(newp->_buf, inbuf->bytes, inbuf->size);
+                h2o_buffer__do_free(inbuf);
+                *_inbuf = inbuf = newp;
+            }
+        }
+    }
+
+    ret.base = inbuf->bytes + inbuf->size;
+    ret.len = inbuf->_buf + inbuf->capacity - ret.base;
+
+    return ret;
+
+MapError:
+    ret.base = NULL;
+    ret.len = 0;
+    return ret;
+}
+
+void h2o_buffer_consume(h2o_buffer_t **_inbuf, size_t delta)
+{
+    h2o_buffer_t *inbuf = *_inbuf;
+
+    if (delta != 0) {
+        assert(inbuf->bytes != NULL);
+        if (inbuf->size == delta) {
+            *_inbuf = &inbuf->_prototype->_initial_buf;
+            h2o_buffer__do_free(inbuf);
+        } else {
+            inbuf->size -= delta;
+            inbuf->bytes += delta;
+        }
+    }
+}
+
+void h2o_buffer__dispose_linked(void *p)
+{
+    h2o_buffer_t **buf = p;
+    h2o_buffer_dispose(buf);
+}
+
+void h2o_vector__expand(h2o_mem_pool_t *pool, h2o_vector_t *vector, size_t element_size, size_t new_capacity)
+{
+    void *new_entries;
+    assert(vector->capacity < new_capacity);
+    if (vector->capacity == 0)
+        vector->capacity = 4;
+    while (vector->capacity < new_capacity)
+        vector->capacity *= 2;
+    if (pool != NULL) {
+        new_entries = h2o_mem_alloc_pool(pool, element_size * vector->capacity);
+        h2o_memcpy(new_entries, vector->entries, element_size * vector->size);
+    } else {
+        new_entries = h2o_mem_realloc(vector->entries, element_size * vector->capacity);
+    }
+    vector->entries = new_entries;
+}
+
+void h2o_mem_swap(void *_x, void *_y, size_t len)
+{
+    char *x = _x, *y = _y;
+    char buf[256];
+
+    while (len != 0) {
+        size_t blocksz = len < sizeof(buf) ? len : sizeof(buf);
+        memcpy(buf, x, blocksz);
+        memcpy(x, y, blocksz);
+        memcpy(y, buf, blocksz);
+        len -= blocksz;
+        x += blocksz;
+        y += blocksz;
+    }
+}
+
+void h2o_dump_memory(FILE *fp, const char *buf, size_t len)
+{
+    size_t i, j;
+
+    for (i = 0; i < len; i += 16) {
+        fprintf(fp, "%08zx", i);
+        for (j = 0; j != 16; ++j) {
+            if (i + j < len)
+                fprintf(fp, " %02x", (int)(unsigned char)buf[i + j]);
+            else
+                fprintf(fp, "   ");
+        }
+        fprintf(fp, " ");
+        for (j = 0; j != 16 && i + j < len; ++j) {
+            int ch = buf[i + j];
+            fputc(' ' <= ch && ch < 0x7f ? ch : '.', fp);
+        }
+        fprintf(fp, "\n");
+    }
+}
+
+void h2o_append_to_null_terminated_list(void ***list, void *element)
+{
+    size_t cnt;
+
+    for (cnt = 0; (*list)[cnt] != NULL; ++cnt)
+        ;
+    *list = h2o_mem_realloc(*list, (cnt + 2) * sizeof(void *));
+    (*list)[cnt++] = element;
+    (*list)[cnt] = NULL;
+}
diff --git a/debian/vendor-h2o/lib/common/multithread.c b/debian/vendor-h2o/lib/common/multithread.c
new file mode 100644
index 0000000..b4e8ba8
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/multithread.c
@@ -0,0 +1,274 @@
+/*
+ * Copyright (c) 2015-2016 DeNA Co., Ltd., Kazuho Oku, Tatsuhiko Kubo,
+ *                         Chul-Woong Yang
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <assert.h>
+#include <pthread.h>
+#include "cloexec.h"
+#include "h2o/multithread.h"
+
+struct st_h2o_multithread_queue_t {
+#if H2O_USE_LIBUV
+    uv_async_t async;
+#else
+    struct {
+        int write;
+        h2o_socket_t *read;
+    } async;
+#endif
+    pthread_mutex_t mutex;
+    struct {
+        h2o_linklist_t active;
+        h2o_linklist_t inactive;
+    } receivers;
+};
+
+static void queue_cb(h2o_multithread_queue_t *queue)
+{
+    pthread_mutex_lock(&queue->mutex);
+
+    while (!h2o_linklist_is_empty(&queue->receivers.active)) {
+        h2o_multithread_receiver_t *receiver =
+            H2O_STRUCT_FROM_MEMBER(h2o_multithread_receiver_t, _link, queue->receivers.active.next);
+        /* detach all the messages from the receiver */
+        h2o_linklist_t messages;
+        h2o_linklist_init_anchor(&messages);
+        h2o_linklist_insert_list(&messages, &receiver->_messages);
+        /* relink the receiver to the inactive list */
+        h2o_linklist_unlink(&receiver->_link);
+        h2o_linklist_insert(&queue->receivers.inactive, &receiver->_link);
+
+        /* dispatch the messages */
+        pthread_mutex_unlock(&queue->mutex);
+        receiver->cb(receiver, &messages);
+        assert(h2o_linklist_is_empty(&messages));
+        pthread_mutex_lock(&queue->mutex);
+    }
+
+    pthread_mutex_unlock(&queue->mutex);
+}
+
+#ifdef H2O_NO_64BIT_ATOMICS
+pthread_mutex_t h2o_conn_id_mutex = PTHREAD_MUTEX_INITIALIZER;
+#endif
+
+#if H2O_USE_LIBUV
+#else
+
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+static void on_read(h2o_socket_t *sock, const char *err)
+{
+    if (err != NULL) {
+        fprintf(stderr, "pipe error\n");
+        abort();
+    }
+
+    h2o_buffer_consume(&sock->input, sock->input->size);
+    queue_cb(sock->data);
+}
+
+static void init_async(h2o_multithread_queue_t *queue, h2o_loop_t *loop)
+{
+    int fds[2];
+
+    if (cloexec_pipe(fds) != 0) {
+        perror("pipe");
+        abort();
+    }
+    fcntl(fds[1], F_SETFL, O_NONBLOCK);
+    queue->async.write = fds[1];
+    queue->async.read = h2o_evloop_socket_create(loop, fds[0], 0);
+    queue->async.read->data = queue;
+    h2o_socket_read_start(queue->async.read, on_read);
+}
+
+#endif
+
+h2o_multithread_queue_t *h2o_multithread_create_queue(h2o_loop_t *loop)
+{
+    h2o_multithread_queue_t *queue = h2o_mem_alloc(sizeof(*queue));
+    memset(queue, 0, sizeof(*queue));
+
+#if H2O_USE_LIBUV
+    uv_async_init(loop, &queue->async, (uv_async_cb)queue_cb);
+#else
+    init_async(queue, loop);
+#endif
+    pthread_mutex_init(&queue->mutex, NULL);
+    h2o_linklist_init_anchor(&queue->receivers.active);
+    h2o_linklist_init_anchor(&queue->receivers.inactive);
+
+    return queue;
+}
+
+void h2o_multithread_destroy_queue(h2o_multithread_queue_t *queue)
+{
+    assert(h2o_linklist_is_empty(&queue->receivers.active));
+    assert(h2o_linklist_is_empty(&queue->receivers.inactive));
+#if H2O_USE_LIBUV
+    uv_close((uv_handle_t *)&queue->async, (uv_close_cb)free);
+#else
+    h2o_socket_read_stop(queue->async.read);
+    h2o_socket_close(queue->async.read);
+    close(queue->async.write);
+#endif
+    pthread_mutex_destroy(&queue->mutex);
+}
+
+void h2o_multithread_register_receiver(h2o_multithread_queue_t *queue, h2o_multithread_receiver_t *receiver,
+                                       h2o_multithread_receiver_cb cb)
+{
+    receiver->queue = queue;
+    receiver->_link = (h2o_linklist_t){NULL};
+    h2o_linklist_init_anchor(&receiver->_messages);
+    receiver->cb = cb;
+
+    pthread_mutex_lock(&queue->mutex);
+    h2o_linklist_insert(&queue->receivers.inactive, &receiver->_link);
+    pthread_mutex_unlock(&queue->mutex);
+}
+
+void h2o_multithread_unregister_receiver(h2o_multithread_queue_t *queue, h2o_multithread_receiver_t *receiver)
+{
+    assert(queue == receiver->queue);
+    assert(h2o_linklist_is_empty(&receiver->_messages));
+    pthread_mutex_lock(&queue->mutex);
+    h2o_linklist_unlink(&receiver->_link);
+    pthread_mutex_unlock(&queue->mutex);
+}
+
+void h2o_multithread_send_message(h2o_multithread_receiver_t *receiver, h2o_multithread_message_t *message)
+{
+    int do_send = 0;
+
+    pthread_mutex_lock(&receiver->queue->mutex);
+    if (message != NULL) {
+        assert(!h2o_linklist_is_linked(&message->link));
+        if (h2o_linklist_is_empty(&receiver->_messages)) {
+            h2o_linklist_unlink(&receiver->_link);
+            h2o_linklist_insert(&receiver->queue->receivers.active, &receiver->_link);
+            do_send = 1;
+        }
+        h2o_linklist_insert(&receiver->_messages, &message->link);
+    } else {
+        if (h2o_linklist_is_empty(&receiver->_messages))
+            do_send = 1;
+    }
+    pthread_mutex_unlock(&receiver->queue->mutex);
+
+    if (do_send) {
+#if H2O_USE_LIBUV
+        uv_async_send(&receiver->queue->async);
+#else
+        while (write(receiver->queue->async.write, "", 1) == -1 && errno == EINTR)
+            ;
+#endif
+    }
+}
+
+void h2o_multithread_create_thread(pthread_t *tid, const pthread_attr_t *attr, void *(*func)(void *), void *arg)
+{
+    if (pthread_create(tid, attr, func, arg) != 0) {
+        perror("pthread_create");
+        abort();
+    }
+}
+
+void h2o_sem_init(h2o_sem_t *sem, ssize_t capacity)
+{
+    pthread_mutex_init(&sem->_mutex, NULL);
+    pthread_cond_init(&sem->_cond, NULL);
+    sem->_cur = capacity;
+    sem->_capacity = capacity;
+}
+
+void h2o_sem_destroy(h2o_sem_t *sem)
+{
+    assert(sem->_cur == sem->_capacity);
+    pthread_cond_destroy(&sem->_cond);
+    pthread_mutex_destroy(&sem->_mutex);
+}
+
+void h2o_sem_wait(h2o_sem_t *sem)
+{
+    pthread_mutex_lock(&sem->_mutex);
+    while (sem->_cur <= 0)
+        pthread_cond_wait(&sem->_cond, &sem->_mutex);
+    --sem->_cur;
+    pthread_mutex_unlock(&sem->_mutex);
+}
+
+void h2o_sem_post(h2o_sem_t *sem)
+{
+    pthread_mutex_lock(&sem->_mutex);
+    ++sem->_cur;
+    pthread_cond_signal(&sem->_cond);
+    pthread_mutex_unlock(&sem->_mutex);
+}
+
+void h2o_sem_set_capacity(h2o_sem_t *sem, ssize_t new_capacity)
+{
+    pthread_mutex_lock(&sem->_mutex);
+    sem->_cur += new_capacity - sem->_capacity;
+    sem->_capacity = new_capacity;
+    pthread_cond_broadcast(&sem->_cond);
+    pthread_mutex_unlock(&sem->_mutex);
+}
+
+/* barrier */
+
+void h2o_barrier_init(h2o_barrier_t *barrier, size_t count)
+{
+    pthread_mutex_init(&barrier->_mutex, NULL);
+    pthread_cond_init(&barrier->_cond, NULL);
+    barrier->_count = count;
+}
+
+int h2o_barrier_wait(h2o_barrier_t *barrier)
+{
+    int ret;
+    pthread_mutex_lock(&barrier->_mutex);
+    barrier->_count--;
+    if (barrier->_count == 0) {
+        pthread_cond_broadcast(&barrier->_cond);
+        ret = 1;
+    } else {
+        while (barrier->_count)
+            pthread_cond_wait(&barrier->_cond, &barrier->_mutex);
+        ret = 0;
+    }
+    pthread_mutex_unlock(&barrier->_mutex);
+    return ret;
+}
+
+int h2o_barrier_done(h2o_barrier_t *barrier)
+{
+    return __sync_add_and_fetch(&barrier->_count, 0) == 0;
+}
+
+void h2o_barrier_destroy(h2o_barrier_t *barrier)
+{
+    pthread_mutex_destroy(&barrier->_mutex);
+    pthread_cond_destroy(&barrier->_cond);
+}
diff --git a/debian/vendor-h2o/lib/common/serverutil.c b/debian/vendor-h2o/lib/common/serverutil.c
new file mode 100644
index 0000000..8226f6e
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/serverutil.c
@@ -0,0 +1,317 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku, Nick Desaulniers
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <errno.h>
+#include <fcntl.h>
+#include <grp.h>
+#include <pthread.h>
+#include <pwd.h>
+#include <signal.h>
+#include <spawn.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#if !defined(_SC_NPROCESSORS_ONLN)
+#include <sys/sysctl.h>
+#endif
+#include "cloexec.h"
+#include "h2o/memory.h"
+#include "h2o/serverutil.h"
+#include "h2o/socket.h"
+#include "h2o/string_.h"
+
+void h2o_set_signal_handler(int signo, void (*cb)(int signo))
+{
+    struct sigaction action;
+
+    memset(&action, 0, sizeof(action));
+    sigemptyset(&action.sa_mask);
+    action.sa_handler = cb;
+    sigaction(signo, &action, NULL);
+}
+
+int h2o_setuidgid(const char *user)
+{
+    struct passwd pwbuf, *pw;
+    char buf[65536]; /* should be large enough */
+
+    errno = 0;
+    if (getpwnam_r(user, &pwbuf, buf, sizeof(buf), &pw) != 0) {
+        perror("getpwnam_r");
+        return -1;
+    }
+    if (pw == NULL) {
+        fprintf(stderr, "unknown user:%s\n", user);
+        return -1;
+    }
+    if (setgid(pw->pw_gid) != 0) {
+        fprintf(stderr, "setgid(%d) failed:%s\n", (int)pw->pw_gid, strerror(errno));
+        return -1;
+    }
+    if (initgroups(pw->pw_name, pw->pw_gid) != 0) {
+        fprintf(stderr, "initgroups(%s, %d) failed:%s\n", pw->pw_name, (int)pw->pw_gid, strerror(errno));
+        return -1;
+    }
+    if (setuid(pw->pw_uid) != 0) {
+        fprintf(stderr, "setuid(%d) failed:%s\n", (int)pw->pw_uid, strerror(errno));
+        return -1;
+    }
+
+    return 0;
+}
+
+size_t h2o_server_starter_get_fds(int **_fds)
+{
+    const char *ports_env, *start, *end, *eq;
+    size_t t;
+    H2O_VECTOR(int) fds = {NULL};
+
+    if ((ports_env = getenv("SERVER_STARTER_PORT")) == NULL)
+        return 0;
+    if (ports_env[0] == '\0') {
+        fprintf(stderr, "$SERVER_STARTER_PORT is empty\n");
+        return SIZE_MAX;
+    }
+
+    /* ports_env example: 127.0.0.1:80=3;/tmp/sock=4 */
+    for (start = ports_env; *start != '\0'; start = *end == ';' ? end + 1 : end) {
+        if ((end = strchr(start, ';')) == NULL)
+            end = start + strlen(start);
+        if ((eq = memchr(start, '=', end - start)) == NULL) {
+            fprintf(stderr, "invalid $SERVER_STARTER_PORT, an element without `=` in: %s\n", ports_env);
+            goto Error;
+        }
+        if ((t = h2o_strtosize(eq + 1, end - eq - 1)) == SIZE_MAX) {
+            fprintf(stderr, "invalid file descriptor number in $SERVER_STARTER_PORT: %s\n", ports_env);
+            goto Error;
+        }
+        h2o_vector_reserve(NULL, &fds, fds.size + 1);
+        fds.entries[fds.size++] = (int)t;
+    }
+
+    *_fds = fds.entries;
+    return fds.size;
+Error:
+    free(fds.entries);
+    return SIZE_MAX;
+}
+
+static char **build_spawn_env(void)
+{
+    extern char **environ;
+    size_t num;
+
+    /* calculate number of envvars, as well as looking for H2O_ROOT= */
+    for (num = 0; environ[num] != NULL; ++num)
+        if (strncmp(environ[num], "H2O_ROOT=", sizeof("H2O_ROOT=") - 1) == 0)
+            return NULL;
+
+    /* not found */
+    char **newenv = h2o_mem_alloc(sizeof(*newenv) * (num + 2) + sizeof("H2O_ROOT=" H2O_TO_STR(H2O_ROOT)));
+    memcpy(newenv, environ, sizeof(*newenv) * num);
+    newenv[num] = (char *)(newenv + num + 2);
+    newenv[num + 1] = NULL;
+    strcpy(newenv[num], "H2O_ROOT=" H2O_TO_STR(H2O_ROOT));
+
+    return newenv;
+}
+
+pid_t h2o_spawnp(const char *cmd, char *const *argv, const int *mapped_fds, int cloexec_mutex_is_locked)
+{
+#if defined(__linux__)
+
+    /* posix_spawnp of Linux does not return error if the executable does not exist, see
+     * https://gist.github.com/kazuho/0c233e6f86d27d6e4f09
+     */
+    extern char **environ;
+    int pipefds[2] = {-1, -1}, errnum;
+    pid_t pid;
+
+    /* create pipe, used for sending error codes */
+    if (pipe2(pipefds, O_CLOEXEC) != 0)
+        goto Error;
+
+    /* fork */
+    if (!cloexec_mutex_is_locked)
+        pthread_mutex_lock(&cloexec_mutex);
+    if ((pid = fork()) == 0) {
+        /* in child process, map the file descriptors and execute; return the errnum through pipe if exec failed */
+        if (mapped_fds != NULL) {
+            for (; *mapped_fds != -1; mapped_fds += 2) {
+                if (mapped_fds[0] != mapped_fds[1]) {
+                    if (mapped_fds[1] != -1)
+                        dup2(mapped_fds[0], mapped_fds[1]);
+                    close(mapped_fds[0]);
+                }
+            }
+        }
+        char **env = build_spawn_env();
+        if (env != NULL)
+            environ = env;
+        execvp(cmd, argv);
+        errnum = errno;
+        write(pipefds[1], &errnum, sizeof(errnum));
+        _exit(EX_SOFTWARE);
+    }
+    if (!cloexec_mutex_is_locked)
+        pthread_mutex_unlock(&cloexec_mutex);
+    if (pid == -1)
+        goto Error;
+
+    /* parent process */
+    close(pipefds[1]);
+    pipefds[1] = -1;
+    ssize_t rret;
+    errnum = 0;
+    while ((rret = read(pipefds[0], &errnum, sizeof(errnum))) == -1 && errno == EINTR)
+        ;
+    if (rret != 0) {
+        /* spawn failed */
+        while (waitpid(pid, NULL, 0) != pid)
+            ;
+        pid = -1;
+        errno = errnum;
+        goto Error;
+    }
+
+    /* spawn succeeded */
+    close(pipefds[0]);
+    return pid;
+
+Error:
+    errnum = errno;
+    if (pipefds[0] != -1)
+        close(pipefds[0]);
+    if (pipefds[1] != -1)
+        close(pipefds[1]);
+    errno = errnum;
+    return -1;
+
+#else
+
+    posix_spawn_file_actions_t file_actions;
+    pid_t pid;
+    extern char **environ;
+    char **env = build_spawn_env();
+    posix_spawn_file_actions_init(&file_actions);
+    if (mapped_fds != NULL) {
+        for (; *mapped_fds != -1; mapped_fds += 2) {
+            if (mapped_fds[1] != -1)
+                posix_spawn_file_actions_adddup2(&file_actions, mapped_fds[0], mapped_fds[1]);
+            posix_spawn_file_actions_addclose(&file_actions, mapped_fds[0]);
+        }
+    }
+    if (!cloexec_mutex_is_locked)
+        pthread_mutex_lock(&cloexec_mutex);
+    errno = posix_spawnp(&pid, cmd, &file_actions, NULL, argv, env != NULL ? env : environ);
+    if (!cloexec_mutex_is_locked)
+        pthread_mutex_unlock(&cloexec_mutex);
+    free(env);
+    if (errno != 0)
+        return -1;
+
+    return pid;
+
+#endif
+}
+
+int h2o_read_command(const char *cmd, char **argv, h2o_buffer_t **resp, int *child_status)
+{
+    int respfds[2] = {-1, -1};
+    pid_t pid = -1;
+    int mutex_locked = 0, ret = -1;
+
+    h2o_buffer_init(resp, &h2o_socket_buffer_prototype);
+
+    pthread_mutex_lock(&cloexec_mutex);
+    mutex_locked = 1;
+
+    /* create pipe for reading the result */
+    if (pipe(respfds) != 0)
+        goto Exit;
+    if (fcntl(respfds[0], F_SETFD, O_CLOEXEC) < 0)
+        goto Exit;
+
+    /* spawn */
+    int mapped_fds[] = {respfds[1], 1, /* stdout of the child process is read from the pipe */
+                        -1};
+    if ((pid = h2o_spawnp(cmd, argv, mapped_fds, 1)) == -1)
+        goto Exit;
+    close(respfds[1]);
+    respfds[1] = -1;
+
+    pthread_mutex_unlock(&cloexec_mutex);
+    mutex_locked = 0;
+
+    /* read the response from pipe */
+    while (1) {
+        h2o_iovec_t buf = h2o_buffer_reserve(resp, 8192);
+        ssize_t r;
+        while ((r = read(respfds[0], buf.base, buf.len)) == -1 && errno == EINTR)
+            ;
+        if (r <= 0)
+            break;
+        (*resp)->size += r;
+    }
+
+Exit:
+    if (mutex_locked)
+        pthread_mutex_unlock(&cloexec_mutex);
+    if (pid != -1) {
+        /* wait for the child to complete */
+        pid_t r;
+        while ((r = waitpid(pid, child_status, 0)) == -1 && errno == EINTR)
+            ;
+        if (r == pid) {
+            /* success */
+            ret = 0;
+        }
+    }
+    if (respfds[0] != -1)
+        close(respfds[0]);
+    if (respfds[1] != -1)
+        close(respfds[1]);
+    if (ret != 0)
+        h2o_buffer_dispose(resp);
+
+    return ret;
+}
+
+size_t h2o_numproc(void)
+{
+#if defined(_SC_NPROCESSORS_ONLN)
+    return (size_t)sysconf(_SC_NPROCESSORS_ONLN);
+#elif defined(CTL_HW) && defined(HW_AVAILCPU)
+    int name[] = {CTL_HW, HW_AVAILCPU};
+    int ncpu;
+    size_t ncpu_sz = sizeof(ncpu);
+    if (sysctl(name, sizeof(name) / sizeof(name[0]), &ncpu, &ncpu_sz, NULL, 0) != 0 || sizeof(ncpu) != ncpu_sz) {
+        fprintf(stderr, "[ERROR] failed to obtain number of CPU cores, assuming as one\n");
+        ncpu = 1;
+    }
+    return ncpu;
+#else
+    return 1;
+#endif
+}
diff --git a/debian/vendor-h2o/lib/common/socket.c b/debian/vendor-h2o/lib/common/socket.c
new file mode 100644
index 0000000..2572233
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/socket.c
@@ -0,0 +1,1448 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku, Justin Zhu
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <string.h>
+#include <sys/un.h>
+#include <unistd.h>
+#include <openssl/err.h>
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+#include <sys/ioctl.h>
+#endif
+#if H2O_USE_PICOTLS
+#include "picotls.h"
+#endif
+#include "h2o/socket.h"
+#include "h2o/timeout.h"
+
+#if defined(__APPLE__) && defined(__clang__)
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+#endif
+
+#ifndef IOV_MAX
+#define IOV_MAX UIO_MAXIOV
+#endif
+
+/* kernel-headers bundled with Ubuntu 14.04 does not have the constant defined in netinet/tcp.h */
+#if defined(__linux__) && !defined(TCP_NOTSENT_LOWAT)
+#define TCP_NOTSENT_LOWAT 25
+#endif
+
+#define OPENSSL_HOSTNAME_VALIDATION_LINKAGE static
+#include "../../deps/ssl-conservatory/openssl/openssl_hostname_validation.c"
+
+struct st_h2o_socket_ssl_t {
+    SSL_CTX *ssl_ctx;
+    SSL *ossl;
+#if H2O_USE_PICOTLS
+    ptls_t *ptls;
+#endif
+    int *did_write_in_read; /* used for detecting and closing the connection upon renegotiation (FIXME implement renegotiation) */
+    size_t record_overhead;
+    struct {
+        h2o_socket_cb cb;
+        union {
+            struct {
+                struct {
+                    enum {
+                        ASYNC_RESUMPTION_STATE_COMPLETE = 0, /* just pass thru */
+                        ASYNC_RESUMPTION_STATE_RECORD,       /* record first input, restore SSL state if it changes to REQUEST_SENT
+                                                                */
+                        ASYNC_RESUMPTION_STATE_REQUEST_SENT  /* async request has been sent, and is waiting for response */
+                    } state;
+                    SSL_SESSION *session_data;
+                } async_resumption;
+            } server;
+            struct {
+                char *server_name;
+                h2o_cache_t *session_cache;
+                h2o_iovec_t session_cache_key;
+                h2o_cache_hashcode_t session_cache_key_hash;
+            } client;
+        };
+    } handshake;
+    struct {
+        h2o_buffer_t *encrypted;
+    } input;
+    struct {
+        H2O_VECTOR(h2o_iovec_t) bufs;
+        h2o_mem_pool_t pool; /* placed at the last */
+    } output;
+};
+
+struct st_h2o_ssl_context_t {
+    SSL_CTX *ctx;
+    const h2o_iovec_t *protocols;
+    h2o_iovec_t _npn_list_of_protocols;
+};
+
+/* backend functions */
+static void do_dispose_socket(h2o_socket_t *sock);
+static void do_write(h2o_socket_t *sock, h2o_iovec_t *bufs, size_t bufcnt, h2o_socket_cb cb);
+static void do_read_start(h2o_socket_t *sock);
+static void do_read_stop(h2o_socket_t *sock);
+static int do_export(h2o_socket_t *_sock, h2o_socket_export_t *info);
+static h2o_socket_t *do_import(h2o_loop_t *loop, h2o_socket_export_t *info);
+static socklen_t get_peername_uncached(h2o_socket_t *sock, struct sockaddr *sa);
+
+/* internal functions called from the backend */
+static const char *decode_ssl_input(h2o_socket_t *sock);
+static void on_write_complete(h2o_socket_t *sock, const char *err);
+
+#if H2O_USE_LIBUV
+#include "socket/uv-binding.c.h"
+#else
+#include "socket/evloop.c.h"
+#endif
+
+h2o_buffer_mmap_settings_t h2o_socket_buffer_mmap_settings = {
+    32 * 1024 * 1024, /* 32MB, should better be greater than max frame size of HTTP2 for performance reasons */
+    "/tmp/h2o.b.XXXXXX"};
+
+__thread h2o_buffer_prototype_t h2o_socket_buffer_prototype = {
+    {16},                                       /* keep 16 recently used chunks */
+    {H2O_SOCKET_INITIAL_INPUT_BUFFER_SIZE * 2}, /* minimum initial capacity */
+    &h2o_socket_buffer_mmap_settings};
+
+const char *h2o_socket_error_out_of_memory = "out of memory";
+const char *h2o_socket_error_io = "I/O error";
+const char *h2o_socket_error_closed = "socket closed by peer";
+const char *h2o_socket_error_conn_fail = "connection failure";
+const char *h2o_socket_error_ssl_no_cert = "no certificate";
+const char *h2o_socket_error_ssl_cert_invalid = "invalid certificate";
+const char *h2o_socket_error_ssl_cert_name_mismatch = "certificate name mismatch";
+const char *h2o_socket_error_ssl_decode = "SSL decode error";
+
+static void (*resumption_get_async)(h2o_socket_t *sock, h2o_iovec_t session_id);
+static void (*resumption_new)(h2o_iovec_t session_id, h2o_iovec_t session_data);
+
+static int read_bio(BIO *b, char *out, int len)
+{
+    h2o_socket_t *sock = BIO_get_data(b);
+
+    if (len == 0)
+        return 0;
+
+    if (sock->ssl->input.encrypted->size == 0) {
+        BIO_set_retry_read(b);
+        return -1;
+    }
+
+    if (sock->ssl->input.encrypted->size < len) {
+        len = (int)sock->ssl->input.encrypted->size;
+    }
+    memcpy(out, sock->ssl->input.encrypted->bytes, len);
+    h2o_buffer_consume(&sock->ssl->input.encrypted, len);
+
+    return len;
+}
+
+static void write_ssl_bytes(h2o_socket_t *sock, const void *in, size_t len)
+{
+    if (len != 0) {
+        void *bytes_alloced = h2o_mem_alloc_pool(&sock->ssl->output.pool, len);
+        memcpy(bytes_alloced, in, len);
+        h2o_vector_reserve(&sock->ssl->output.pool, &sock->ssl->output.bufs, sock->ssl->output.bufs.size + 1);
+        sock->ssl->output.bufs.entries[sock->ssl->output.bufs.size++] = h2o_iovec_init(bytes_alloced, len);
+    }
+}
+
+static int write_bio(BIO *b, const char *in, int len)
+{
+    h2o_socket_t *sock = BIO_get_data(b);
+
+    /* FIXME no support for SSL renegotiation (yet) */
+    if (sock->ssl->did_write_in_read != NULL) {
+        *sock->ssl->did_write_in_read = 1;
+        return -1;
+    }
+
+    write_ssl_bytes(sock, in, len);
+    return len;
+}
+
+static int puts_bio(BIO *b, const char *str)
+{
+    return write_bio(b, str, (int)strlen(str));
+}
+
+static long ctrl_bio(BIO *b, int cmd, long num, void *ptr)
+{
+    switch (cmd) {
+    case BIO_CTRL_GET_CLOSE:
+        return BIO_get_shutdown(b);
+    case BIO_CTRL_SET_CLOSE:
+        BIO_set_shutdown(b, (int)num);
+        return 1;
+    case BIO_CTRL_FLUSH:
+        return 1;
+    default:
+        return 0;
+    }
+}
+
+static void setup_bio(h2o_socket_t *sock)
+{
+    static BIO_METHOD *bio_methods = NULL;
+    if (bio_methods == NULL) {
+        static pthread_mutex_t init_lock = PTHREAD_MUTEX_INITIALIZER;
+        pthread_mutex_lock(&init_lock);
+        if (bio_methods == NULL) {
+            BIO_METHOD *biom = BIO_meth_new(BIO_TYPE_FD, "h2o_socket");
+            BIO_meth_set_write(biom, write_bio);
+            BIO_meth_set_read(biom, read_bio);
+            BIO_meth_set_puts(biom, puts_bio);
+            BIO_meth_set_ctrl(biom, ctrl_bio);
+            __sync_synchronize();
+            bio_methods = biom;
+        }
+	pthread_mutex_unlock(&init_lock);
+    }
+
+    BIO *bio = BIO_new(bio_methods);
+    if (bio == NULL)
+        h2o_fatal("no memory");
+    BIO_set_data(bio, sock);
+    BIO_set_init(bio, 1);
+    SSL_set_bio(sock->ssl->ossl, bio, bio);
+}
+
+const char *decode_ssl_input(h2o_socket_t *sock)
+{
+    assert(sock->ssl != NULL);
+    assert(sock->ssl->handshake.cb == NULL);
+
+#if H2O_USE_PICOTLS
+    if (sock->ssl->ptls != NULL) {
+        if (sock->ssl->input.encrypted->size != 0) {
+            const char *src = sock->ssl->input.encrypted->bytes, *src_end = src + sock->ssl->input.encrypted->size;
+            h2o_iovec_t reserved;
+            ptls_buffer_t rbuf;
+            int ret;
+            if ((reserved = h2o_buffer_reserve(&sock->input, sock->ssl->input.encrypted->size)).base == NULL)
+                return h2o_socket_error_out_of_memory;
+            ptls_buffer_init(&rbuf, reserved.base, reserved.len);
+            do {
+                size_t consumed = src_end - src;
+                if ((ret = ptls_receive(sock->ssl->ptls, &rbuf, src, &consumed)) != 0)
+                    break;
+                src += consumed;
+            } while (src != src_end);
+            h2o_buffer_consume(&sock->ssl->input.encrypted, sock->ssl->input.encrypted->size - (src_end - src));
+            if (rbuf.is_allocated) {
+                if ((reserved = h2o_buffer_reserve(&sock->input, rbuf.off)).base == NULL)
+                    return h2o_socket_error_out_of_memory;
+                memcpy(reserved.base, rbuf.base, rbuf.off);
+                sock->input->size += rbuf.off;
+                ptls_buffer_dispose(&rbuf);
+            } else {
+                sock->input->size += rbuf.off;
+            }
+            if (!(ret == 0 || ret == PTLS_ERROR_IN_PROGRESS))
+                return h2o_socket_error_ssl_decode;
+        }
+        return NULL;
+    }
+#endif
+
+    while (sock->ssl->input.encrypted->size != 0 || SSL_pending(sock->ssl->ossl)) {
+        int rlen;
+        h2o_iovec_t buf = h2o_buffer_reserve(&sock->input, 4096);
+        if (buf.base == NULL)
+            return h2o_socket_error_out_of_memory;
+        { /* call SSL_read (while detecting SSL renegotiation and reporting it as error) */
+            int did_write_in_read = 0;
+            sock->ssl->did_write_in_read = &did_write_in_read;
+            ERR_clear_error();
+            rlen = SSL_read(sock->ssl->ossl, buf.base, (int)buf.len);
+            sock->ssl->did_write_in_read = NULL;
+            if (did_write_in_read)
+                return "ssl renegotiation not supported";
+        }
+        if (rlen == -1) {
+            if (SSL_get_error(sock->ssl->ossl, rlen) != SSL_ERROR_WANT_READ) {
+                return h2o_socket_error_ssl_decode;
+            }
+            break;
+        } else if (rlen == 0) {
+            break;
+        } else {
+            sock->input->size += rlen;
+        }
+    }
+
+    return 0;
+}
+
+static void flush_pending_ssl(h2o_socket_t *sock, h2o_socket_cb cb)
+{
+    do_write(sock, sock->ssl->output.bufs.entries, sock->ssl->output.bufs.size, cb);
+}
+
+static void clear_output_buffer(struct st_h2o_socket_ssl_t *ssl)
+{
+    memset(&ssl->output.bufs, 0, sizeof(ssl->output.bufs));
+    h2o_mem_clear_pool(&ssl->output.pool);
+}
+
+static void destroy_ssl(struct st_h2o_socket_ssl_t *ssl)
+{
+#if H2O_USE_PICOTLS
+    if (ssl->ptls != NULL) {
+        ptls_free(ssl->ptls);
+        ssl->ptls = NULL;
+    }
+#endif
+    if (ssl->ossl != NULL) {
+        if (!SSL_is_server(ssl->ossl)) {
+            free(ssl->handshake.client.server_name);
+            free(ssl->handshake.client.session_cache_key.base);
+        }
+        SSL_free(ssl->ossl);
+        ssl->ossl = NULL;
+    }
+    h2o_buffer_dispose(&ssl->input.encrypted);
+    clear_output_buffer(ssl);
+    free(ssl);
+}
+
+static void dispose_socket(h2o_socket_t *sock, const char *err)
+{
+    void (*close_cb)(void *data);
+    void *close_cb_data;
+
+    if (sock->ssl != NULL) {
+        destroy_ssl(sock->ssl);
+        sock->ssl = NULL;
+    }
+    h2o_buffer_dispose(&sock->input);
+    if (sock->_peername != NULL) {
+        free(sock->_peername);
+        sock->_peername = NULL;
+    }
+
+    close_cb = sock->on_close.cb;
+    close_cb_data = sock->on_close.data;
+
+    do_dispose_socket(sock);
+
+    if (close_cb != NULL)
+        close_cb(close_cb_data);
+}
+
+static void shutdown_ssl(h2o_socket_t *sock, const char *err)
+{
+    int ret;
+
+    if (err != NULL)
+        goto Close;
+
+    if (sock->_cb.write != NULL) {
+        /* note: libuv calls the write callback after the socket is closed by uv_close (with status set to 0 if the write succeeded)
+         */
+        sock->_cb.write = NULL;
+        goto Close;
+    }
+
+#if H2O_USE_PICOTLS
+    if (sock->ssl->ptls != NULL) {
+        ptls_buffer_t wbuf;
+        uint8_t wbuf_small[32];
+        ptls_buffer_init(&wbuf, wbuf_small, sizeof(wbuf_small));
+        if ((ret = ptls_send_alert(sock->ssl->ptls, &wbuf, PTLS_ALERT_LEVEL_WARNING, PTLS_ALERT_CLOSE_NOTIFY)) != 0)
+            goto Close;
+        write_ssl_bytes(sock, wbuf.base, wbuf.off);
+        ptls_buffer_dispose(&wbuf);
+        ret = 1; /* close the socket after sending close_notify */
+    } else
+#endif
+        if (sock->ssl->ossl != NULL) {
+        ERR_clear_error();
+        if ((ret = SSL_shutdown(sock->ssl->ossl)) == -1)
+            goto Close;
+    } else {
+        goto Close;
+    }
+
+    if (sock->ssl->output.bufs.size != 0) {
+        h2o_socket_read_stop(sock);
+        flush_pending_ssl(sock, ret == 1 ? dispose_socket : shutdown_ssl);
+    } else if (ret == 2 && SSL_get_error(sock->ssl->ossl, ret) == SSL_ERROR_WANT_READ) {
+        h2o_socket_read_start(sock, shutdown_ssl);
+    } else {
+        goto Close;
+    }
+
+    return;
+Close:
+    dispose_socket(sock, err);
+}
+
+void h2o_socket_dispose_export(h2o_socket_export_t *info)
+{
+    assert(info->fd != -1);
+    if (info->ssl != NULL) {
+        destroy_ssl(info->ssl);
+        info->ssl = NULL;
+    }
+    h2o_buffer_dispose(&info->input);
+    close(info->fd);
+    info->fd = -1;
+}
+
+int h2o_socket_export(h2o_socket_t *sock, h2o_socket_export_t *info)
+{
+    static h2o_buffer_prototype_t nonpooling_prototype;
+
+    assert(!h2o_socket_is_writing(sock));
+
+    if (do_export(sock, info) == -1)
+        return -1;
+
+    if ((info->ssl = sock->ssl) != NULL) {
+        sock->ssl = NULL;
+        h2o_buffer_set_prototype(&info->ssl->input.encrypted, &nonpooling_prototype);
+    }
+    info->input = sock->input;
+    h2o_buffer_set_prototype(&info->input, &nonpooling_prototype);
+    h2o_buffer_init(&sock->input, &h2o_socket_buffer_prototype);
+
+    h2o_socket_close(sock);
+
+    return 0;
+}
+
+h2o_socket_t *h2o_socket_import(h2o_loop_t *loop, h2o_socket_export_t *info)
+{
+    h2o_socket_t *sock;
+
+    assert(info->fd != -1);
+
+    sock = do_import(loop, info);
+    info->fd = -1; /* just in case */
+    if ((sock->ssl = info->ssl) != NULL) {
+        setup_bio(sock);
+        h2o_buffer_set_prototype(&sock->ssl->input.encrypted, &h2o_socket_buffer_prototype);
+    }
+    sock->input = info->input;
+    h2o_buffer_set_prototype(&sock->input, &h2o_socket_buffer_prototype);
+    return sock;
+}
+
+void h2o_socket_close(h2o_socket_t *sock)
+{
+    if (sock->ssl == NULL) {
+        dispose_socket(sock, 0);
+    } else {
+        shutdown_ssl(sock, 0);
+    }
+}
+
+static uint16_t calc_suggested_tls_payload_size(h2o_socket_t *sock, uint16_t suggested_tls_record_size)
+{
+    uint16_t ps = suggested_tls_record_size;
+    if (sock->ssl != NULL && sock->ssl->record_overhead < ps)
+        ps -= sock->ssl->record_overhead;
+    return ps;
+}
+
+static void disable_latency_optimized_write(h2o_socket_t *sock, int (*adjust_notsent_lowat)(h2o_socket_t *, unsigned))
+{
+    if (sock->_latency_optimization.notsent_is_minimized) {
+        adjust_notsent_lowat(sock, 0);
+        sock->_latency_optimization.notsent_is_minimized = 0;
+    }
+    sock->_latency_optimization.state = H2O_SOCKET_LATENCY_OPTIMIZATION_STATE_DISABLED;
+    sock->_latency_optimization.suggested_tls_payload_size = 16384;
+    sock->_latency_optimization.suggested_write_size = SIZE_MAX;
+}
+
+static inline void prepare_for_latency_optimized_write(h2o_socket_t *sock,
+                                                       const h2o_socket_latency_optimization_conditions_t *conditions, uint32_t rtt,
+                                                       uint32_t mss, uint32_t cwnd_size, uint32_t cwnd_avail, uint64_t loop_time,
+                                                       int (*adjust_notsent_lowat)(h2o_socket_t *, unsigned))
+{
+    /* check RTT */
+    if (rtt < conditions->min_rtt * (uint64_t)1000)
+        goto Disable;
+    if (rtt * conditions->max_additional_delay < loop_time * 1000 * 100)
+        goto Disable;
+
+    /* latency-optimization is enabled */
+    sock->_latency_optimization.state = H2O_SOCKET_LATENCY_OPTIMIZATION_STATE_DETERMINED;
+
+    /* no need to:
+     *   1) adjust the write size if single_write_size << cwnd_size
+     *   2) align TLS record boundary to TCP packet boundary if packet loss-rate is low and BW isn't small (implied by cwnd size)
+     */
+    if (mss * cwnd_size < conditions->max_cwnd) {
+        if (!sock->_latency_optimization.notsent_is_minimized) {
+            if (adjust_notsent_lowat(sock, 1 /* cannot be set to zero on Linux */) != 0)
+                goto Disable;
+            sock->_latency_optimization.notsent_is_minimized = 1;
+        }
+        sock->_latency_optimization.suggested_tls_payload_size = calc_suggested_tls_payload_size(sock, mss);
+        sock->_latency_optimization.suggested_write_size =
+            cwnd_avail * (size_t)sock->_latency_optimization.suggested_tls_payload_size;
+    } else {
+        if (sock->_latency_optimization.notsent_is_minimized) {
+            if (adjust_notsent_lowat(sock, 0) != 0)
+                goto Disable;
+            sock->_latency_optimization.notsent_is_minimized = 0;
+        }
+        sock->_latency_optimization.suggested_tls_payload_size = 16384;
+        sock->_latency_optimization.suggested_write_size = SIZE_MAX;
+    }
+    return;
+
+Disable:
+    disable_latency_optimized_write(sock, adjust_notsent_lowat);
+}
+
+/**
+ * Obtains RTT, MSS, size of CWND (in the number of packets).
+ * Also writes to cwnd_avail minimum number of packets (of MSS size) sufficient to shut up poll-for-write under the precondition
+ * that TCP_NOTSENT_LOWAT is set to 1.
+ */
+static int obtain_tcp_info(int fd, uint32_t *rtt, uint32_t *mss, uint32_t *cwnd_size, uint32_t *cwnd_avail)
+{
+#define CALC_CWND_PAIR_FROM_BYTE_UNITS(cwnd_bytes, inflight_bytes)                                                                 \
+    do {                                                                                                                           \
+        *cwnd_size = (cwnd_bytes + *mss / 2) / *mss;                                                                               \
+        *cwnd_avail = cwnd_bytes > inflight_bytes ? (cwnd_bytes - inflight_bytes) / *mss + 2 : 2;                                  \
+    } while (0)
+
+#if defined(__linux__) && defined(TCP_INFO)
+
+    struct tcp_info tcpi;
+    socklen_t tcpisz = sizeof(tcpi);
+    if (getsockopt(fd, IPPROTO_TCP, TCP_INFO, &tcpi, &tcpisz) != 0)
+        return -1;
+    *rtt = tcpi.tcpi_rtt;
+    *mss = tcpi.tcpi_snd_mss;
+    *cwnd_size = tcpi.tcpi_snd_cwnd;
+    *cwnd_avail = tcpi.tcpi_snd_cwnd > tcpi.tcpi_unacked ? tcpi.tcpi_snd_cwnd - tcpi.tcpi_unacked + 2 : 2;
+    return 0;
+
+#elif defined(__FreeBSD__) && defined(TCP_INFO) && 0 /* disabled since we wouldn't use it anyways; OS lacks TCP_NOTSENT_LOWAT */
+
+    struct tcp_info tcpi;
+    socklen_t tcpisz = sizeof(tcpi);
+    int bytes_inflight;
+    if (getsockopt(fd, IPPROTO_TCP, TCP_INFO, &tcpi, &tcpisz) != 0 || ioctl(fd, FIONWRITE, &bytes_inflight) == -1)
+        return -1;
+    *rtt = tcpi.tcpi_rtt;
+    *mss = tcpi.tcpi_snd_mss;
+    CALC_CWND_PAIR_FROM_BYTE_UNITS(tcpi.tcpi_snd_cwnd, bytes_inflight);
+    return 0;
+
+#elif defined(__APPLE__) && defined(TCP_CONNECTION_INFO)
+
+    struct tcp_connection_info tcpi;
+    socklen_t tcpisz = sizeof(tcpi);
+    if (getsockopt(fd, IPPROTO_TCP, TCP_CONNECTION_INFO, &tcpi, &tcpisz) != 0 || tcpi.tcpi_maxseg == 0)
+        return -1;
+    *rtt = tcpi.tcpi_srtt * 1000;
+    *mss = tcpi.tcpi_maxseg;
+    CALC_CWND_PAIR_FROM_BYTE_UNITS(tcpi.tcpi_snd_cwnd, tcpi.tcpi_snd_sbbytes);
+    return 0;
+
+#else
+    /* TODO add support for NetBSD; note that the OS returns the number of packets for tcpi_snd_cwnd; see
+     * http://twitter.com/n_soda/status/740719125878575105
+     */
+    return -1;
+#endif
+
+#undef CALC_CWND_PAIR_FROM_BYTE_UNITS
+}
+
+#ifdef TCP_NOTSENT_LOWAT
+static int adjust_notsent_lowat(h2o_socket_t *sock, unsigned notsent_lowat)
+{
+    return setsockopt(h2o_socket_get_fd(sock), IPPROTO_TCP, TCP_NOTSENT_LOWAT, &notsent_lowat, sizeof(notsent_lowat));
+}
+#else
+#define adjust_notsent_lowat NULL
+#endif
+
+size_t h2o_socket_do_prepare_for_latency_optimized_write(h2o_socket_t *sock,
+                                                         const h2o_socket_latency_optimization_conditions_t *conditions)
+{
+    uint32_t rtt = 0, mss = 0, cwnd_size = 0, cwnd_avail = 0;
+    uint64_t loop_time = UINT64_MAX;
+    int can_prepare = 1;
+
+#if !defined(TCP_NOTSENT_LOWAT)
+    /* the feature cannot be setup unless TCP_NOTSENT_LOWAT is available */
+    can_prepare = 0;
+#endif
+
+#if H2O_USE_LIBUV
+    /* poll-then-write is impossible with libuv */
+    can_prepare = 0;
+#else
+    if (can_prepare)
+        loop_time = h2o_evloop_get_execution_time(h2o_socket_get_loop(sock));
+#endif
+
+    /* obtain TCP states */
+    if (can_prepare && obtain_tcp_info(h2o_socket_get_fd(sock), &rtt, &mss, &cwnd_size, &cwnd_avail) != 0)
+        can_prepare = 0;
+
+    /* determine suggested_write_size, suggested_tls_record_size and adjust TCP_NOTSENT_LOWAT based on the obtained information */
+    if (can_prepare) {
+        prepare_for_latency_optimized_write(sock, conditions, rtt, mss, cwnd_size, cwnd_avail, loop_time, adjust_notsent_lowat);
+    } else {
+        disable_latency_optimized_write(sock, adjust_notsent_lowat);
+    }
+
+    return sock->_latency_optimization.suggested_write_size;
+
+#undef CALC_CWND_PAIR_FROM_BYTE_UNITS
+}
+
+void h2o_socket_write(h2o_socket_t *sock, h2o_iovec_t *bufs, size_t bufcnt, h2o_socket_cb cb)
+{
+    size_t i, prev_bytes_written = sock->bytes_written;
+
+    for (i = 0; i != bufcnt; ++i) {
+        sock->bytes_written += bufs[i].len;
+#if H2O_SOCKET_DUMP_WRITE
+        fprintf(stderr, "writing %zu bytes to fd:%d\n", bufs[i].len, h2o_socket_get_fd(sock));
+        h2o_dump_memory(stderr, bufs[i].base, bufs[i].len);
+#endif
+    }
+
+    if (sock->ssl == NULL) {
+        do_write(sock, bufs, bufcnt, cb);
+    } else {
+        assert(sock->ssl->output.bufs.size == 0);
+        /* fill in the data */
+        size_t ssl_record_size;
+        switch (sock->_latency_optimization.state) {
+        case H2O_SOCKET_LATENCY_OPTIMIZATION_STATE_TBD:
+        case H2O_SOCKET_LATENCY_OPTIMIZATION_STATE_DISABLED:
+            ssl_record_size = prev_bytes_written < 200 * 1024 ? calc_suggested_tls_payload_size(sock, 1400) : 16384;
+            break;
+        case H2O_SOCKET_LATENCY_OPTIMIZATION_STATE_DETERMINED:
+            sock->_latency_optimization.state = H2O_SOCKET_LATENCY_OPTIMIZATION_STATE_NEEDS_UPDATE;
+        /* fallthru */
+        default:
+            ssl_record_size = sock->_latency_optimization.suggested_tls_payload_size;
+            break;
+        }
+        for (; bufcnt != 0; ++bufs, --bufcnt) {
+            size_t off = 0;
+            while (off != bufs[0].len) {
+                int ret;
+                size_t sz = bufs[0].len - off;
+                if (sz > ssl_record_size)
+                    sz = ssl_record_size;
+#if H2O_USE_PICOTLS
+                if (sock->ssl->ptls != NULL) {
+                    size_t dst_size = sz + ptls_get_record_overhead(sock->ssl->ptls);
+                    void *dst = h2o_mem_alloc_pool(&sock->ssl->output.pool, dst_size);
+                    ptls_buffer_t wbuf;
+                    ptls_buffer_init(&wbuf, dst, dst_size);
+                    ret = ptls_send(sock->ssl->ptls, &wbuf, bufs[0].base + off, sz);
+                    assert(ret == 0);
+                    assert(!wbuf.is_allocated);
+                    h2o_vector_reserve(&sock->ssl->output.pool, &sock->ssl->output.bufs, sock->ssl->output.bufs.size + 1);
+                    sock->ssl->output.bufs.entries[sock->ssl->output.bufs.size++] = h2o_iovec_init(dst, wbuf.off);
+                } else
+#endif
+                {
+                    ret = SSL_write(sock->ssl->ossl, bufs[0].base + off, (int)sz);
+                    if (ret != sz) {
+                        /* The error happens if SSL_write is called after SSL_read returns a fatal error (e.g. due to corrupt TCP
+                         * packet being received). We need to take care of this since some protocol implementations send data after
+                         * the read-side of the connection gets closed (note that protocol implementations are (yet) incapable of
+                         * distinguishing a normal shutdown and close due to an error using the `status` value of the read
+                         * callback).
+                         */
+                        clear_output_buffer(sock->ssl);
+                        flush_pending_ssl(sock, cb);
+#ifndef H2O_USE_LIBUV
+                        ((struct st_h2o_evloop_socket_t *)sock)->_flags |= H2O_SOCKET_FLAG_IS_WRITE_ERROR;
+#endif
+                        return;
+                    }
+                }
+                off += sz;
+            }
+        }
+        flush_pending_ssl(sock, cb);
+    }
+}
+
+void on_write_complete(h2o_socket_t *sock, const char *err)
+{
+    h2o_socket_cb cb;
+
+    if (sock->ssl != NULL)
+        clear_output_buffer(sock->ssl);
+
+    cb = sock->_cb.write;
+    sock->_cb.write = NULL;
+    cb(sock, err);
+}
+
+void h2o_socket_read_start(h2o_socket_t *sock, h2o_socket_cb cb)
+{
+    sock->_cb.read = cb;
+    do_read_start(sock);
+}
+
+void h2o_socket_read_stop(h2o_socket_t *sock)
+{
+    sock->_cb.read = NULL;
+    do_read_stop(sock);
+}
+
+void h2o_socket_setpeername(h2o_socket_t *sock, struct sockaddr *sa, socklen_t len)
+{
+    if (sock->_peername != NULL)
+        free(sock->_peername);
+    sock->_peername = h2o_mem_alloc(offsetof(struct st_h2o_socket_peername_t, addr) + len);
+    sock->_peername->len = len;
+    memcpy(&sock->_peername->addr, sa, len);
+}
+
+socklen_t h2o_socket_getpeername(h2o_socket_t *sock, struct sockaddr *sa)
+{
+    /* return cached, if exists */
+    if (sock->_peername != NULL) {
+        memcpy(sa, &sock->_peername->addr, sock->_peername->len);
+        return sock->_peername->len;
+    }
+    /* call, copy to cache, and return */
+    socklen_t len = get_peername_uncached(sock, sa);
+    h2o_socket_setpeername(sock, sa, len);
+    return len;
+}
+
+const char *h2o_socket_get_ssl_protocol_version(h2o_socket_t *sock)
+{
+    if (sock->ssl != NULL) {
+#if H2O_USE_PICOTLS
+        if (sock->ssl->ptls != NULL)
+            return "TLSv1.3";
+#endif
+        if (sock->ssl->ossl != NULL)
+            return SSL_get_version(sock->ssl->ossl);
+    }
+    return NULL;
+}
+
+int h2o_socket_get_ssl_session_reused(h2o_socket_t *sock)
+{
+    if (sock->ssl != NULL) {
+#if H2O_USE_PICOTLS
+        if (sock->ssl->ptls != NULL)
+            return ptls_is_psk_handshake(sock->ssl->ptls);
+#endif
+        if (sock->ssl->ossl != NULL)
+            return (int)SSL_session_reused(sock->ssl->ossl);
+    }
+    return -1;
+}
+
+const char *h2o_socket_get_ssl_cipher(h2o_socket_t *sock)
+{
+    if (sock->ssl != NULL) {
+#if H2O_USE_PICOTLS
+        if (sock->ssl->ptls != NULL) {
+            ptls_cipher_suite_t *cipher = ptls_get_cipher(sock->ssl->ptls);
+            if (cipher != NULL)
+                return cipher->aead->name;
+        } else
+#endif
+            if (sock->ssl->ossl != NULL)
+            return SSL_get_cipher_name(sock->ssl->ossl);
+    }
+    return NULL;
+}
+
+int h2o_socket_get_ssl_cipher_bits(h2o_socket_t *sock)
+{
+    if (sock->ssl != NULL) {
+#if H2O_USE_PICOTLS
+        if (sock->ssl->ptls != NULL) {
+            ptls_cipher_suite_t *cipher = ptls_get_cipher(sock->ssl->ptls);
+            if (cipher == NULL)
+                return 0;
+            return (int)cipher->aead->key_size;
+        } else
+#endif
+            if (sock->ssl->ossl != NULL)
+            return SSL_get_cipher_bits(sock->ssl->ossl, NULL);
+    }
+    return 0;
+}
+
+h2o_iovec_t h2o_socket_get_ssl_session_id(h2o_socket_t *sock)
+{
+    if (sock->ssl != NULL) {
+#if H2O_USE_PICOTLS
+        if (sock->ssl->ptls != NULL) {
+            /* FIXME */
+        } else
+#endif
+            if (sock->ssl->ossl != NULL) {
+            SSL_SESSION *session;
+            if (sock->ssl->handshake.server.async_resumption.state == ASYNC_RESUMPTION_STATE_COMPLETE &&
+                (session = SSL_get_session(sock->ssl->ossl)) != NULL) {
+                unsigned id_len;
+                const unsigned char *id = SSL_SESSION_get_id(session, &id_len);
+                return h2o_iovec_init(id, id_len);
+            }
+        }
+    }
+
+    return h2o_iovec_init(NULL, 0);
+}
+
+const char *h2o_socket_get_ssl_server_name(const h2o_socket_t *sock)
+{
+  if (sock->ssl != NULL) {
+#if H2O_USE_PICOTLS
+      if (sock->ssl->ptls != NULL) {
+          return ptls_get_server_name(sock->ssl->ptls);
+      } else
+#endif
+      if (sock->ssl->ossl != NULL) {
+          return SSL_get_servername(sock->ssl->ossl, TLSEXT_NAMETYPE_host_name);
+      }
+  }
+  return NULL;
+}
+
+h2o_iovec_t h2o_socket_log_ssl_session_id(h2o_socket_t *sock, h2o_mem_pool_t *pool)
+{
+    h2o_iovec_t base64id, rawid = h2o_socket_get_ssl_session_id(sock);
+
+    if (rawid.base == NULL)
+        return h2o_iovec_init(NULL, 0);
+
+    base64id.base = pool != NULL ? h2o_mem_alloc_pool(pool, h2o_base64_encode_capacity(rawid.len))
+                                 : h2o_mem_alloc(h2o_base64_encode_capacity(rawid.len));
+    base64id.len = h2o_base64_encode(base64id.base, rawid.base, rawid.len, 1);
+    return base64id;
+}
+
+h2o_iovec_t h2o_socket_log_ssl_cipher_bits(h2o_socket_t *sock, h2o_mem_pool_t *pool)
+{
+    int bits = h2o_socket_get_ssl_cipher_bits(sock);
+    if (bits != 0) {
+        char *s = (char *)(pool != NULL ? h2o_mem_alloc_pool(pool, sizeof(H2O_INT16_LONGEST_STR))
+                                        : h2o_mem_alloc(sizeof(H2O_INT16_LONGEST_STR)));
+        size_t len = sprintf(s, "%" PRId16, (int16_t)bits);
+        return h2o_iovec_init(s, len);
+    } else {
+        return h2o_iovec_init(NULL, 0);
+    }
+}
+
+int h2o_socket_compare_address(struct sockaddr *x, struct sockaddr *y)
+{
+#define CMP(a, b)                                                                                                                  \
+    if (a != b)                                                                                                                    \
+    return a < b ? -1 : 1
+
+    CMP(x->sa_family, y->sa_family);
+
+    if (x->sa_family == AF_UNIX) {
+        struct sockaddr_un *xun = (void *)x, *yun = (void *)y;
+        int r = strcmp(xun->sun_path, yun->sun_path);
+        if (r != 0)
+            return r;
+    } else if (x->sa_family == AF_INET) {
+        struct sockaddr_in *xin = (void *)x, *yin = (void *)y;
+        CMP(ntohl(xin->sin_addr.s_addr), ntohl(yin->sin_addr.s_addr));
+        CMP(ntohs(xin->sin_port), ntohs(yin->sin_port));
+    } else if (x->sa_family == AF_INET6) {
+        struct sockaddr_in6 *xin6 = (void *)x, *yin6 = (void *)y;
+        int r = memcmp(xin6->sin6_addr.s6_addr, yin6->sin6_addr.s6_addr, sizeof(xin6->sin6_addr.s6_addr));
+        if (r != 0)
+            return r;
+        CMP(ntohs(xin6->sin6_port), ntohs(yin6->sin6_port));
+        CMP(xin6->sin6_flowinfo, yin6->sin6_flowinfo);
+        CMP(xin6->sin6_scope_id, yin6->sin6_scope_id);
+    } else {
+        assert(!"unknown sa_family");
+    }
+
+#undef CMP
+    return 0;
+}
+
+size_t h2o_socket_getnumerichost(struct sockaddr *sa, socklen_t salen, char *buf)
+{
+    if (sa->sa_family == AF_INET) {
+        /* fast path for IPv4 addresses */
+        struct sockaddr_in *sin = (void *)sa;
+        uint32_t addr;
+        addr = htonl(sin->sin_addr.s_addr);
+        return sprintf(buf, "%d.%d.%d.%d", addr >> 24, (addr >> 16) & 255, (addr >> 8) & 255, addr & 255);
+    }
+
+    if (getnameinfo(sa, salen, buf, NI_MAXHOST, NULL, 0, NI_NUMERICHOST) != 0)
+        return SIZE_MAX;
+    return strlen(buf);
+}
+
+int32_t h2o_socket_getport(struct sockaddr *sa)
+{
+    switch (sa->sa_family) {
+    case AF_INET:
+        return htons(((struct sockaddr_in *)sa)->sin_port);
+    case AF_INET6:
+        return htons(((struct sockaddr_in6 *)sa)->sin6_port);
+    default:
+        return -1;
+    }
+}
+
+static void create_ossl(h2o_socket_t *sock)
+{
+    sock->ssl->ossl = SSL_new(sock->ssl->ssl_ctx);
+    setup_bio(sock);
+}
+
+static SSL_SESSION *on_async_resumption_get(SSL *ssl,
+#if OPENSSL_VERSION_NUMBER >= 0x1010000fL && !defined(LIBRESSL_VERSION_NUMBER)
+                                            const
+#endif
+                                            unsigned char *data,
+                                            int len, int *copy)
+{
+    h2o_socket_t *sock = BIO_get_data(SSL_get_rbio(ssl));
+
+    switch (sock->ssl->handshake.server.async_resumption.state) {
+    case ASYNC_RESUMPTION_STATE_RECORD:
+        sock->ssl->handshake.server.async_resumption.state = ASYNC_RESUMPTION_STATE_REQUEST_SENT;
+        resumption_get_async(sock, h2o_iovec_init(data, len));
+        return NULL;
+    case ASYNC_RESUMPTION_STATE_COMPLETE:
+        *copy = 1;
+        return sock->ssl->handshake.server.async_resumption.session_data;
+    default:
+        assert(!"FIXME");
+        return NULL;
+    }
+}
+
+static int on_async_resumption_new(SSL *ssl, SSL_SESSION *session)
+{
+    h2o_iovec_t data;
+    const unsigned char *id;
+    unsigned id_len;
+    unsigned char *p;
+
+    /* build data */
+    data.len = i2d_SSL_SESSION(session, NULL);
+    data.base = alloca(data.len);
+    p = (void *)data.base;
+    i2d_SSL_SESSION(session, &p);
+
+    id = SSL_SESSION_get_id(session, &id_len);
+    resumption_new(h2o_iovec_init(id, id_len), data);
+    return 0;
+}
+
+static void on_handshake_complete(h2o_socket_t *sock, const char *err)
+{
+    if (err == NULL) {
+#if H2O_USE_PICOTLS
+        if (sock->ssl->ptls != NULL) {
+            sock->ssl->record_overhead = ptls_get_record_overhead(sock->ssl->ptls);
+        } else
+#endif
+        {
+            const SSL_CIPHER *cipher = SSL_get_current_cipher(sock->ssl->ossl);
+            switch (SSL_CIPHER_get_id(cipher)) {
+            case TLS1_CK_RSA_WITH_AES_128_GCM_SHA256:
+            case TLS1_CK_DHE_RSA_WITH_AES_128_GCM_SHA256:
+            case TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256:
+            case TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256:
+            case TLS1_CK_RSA_WITH_AES_256_GCM_SHA384:
+            case TLS1_CK_DHE_RSA_WITH_AES_256_GCM_SHA384:
+            case TLS1_CK_ECDHE_RSA_WITH_AES_256_GCM_SHA384:
+            case TLS1_CK_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384:
+                sock->ssl->record_overhead = 5 /* header */ + 8 /* record_iv_length (RFC 5288 3) */ + 16 /* tag (RFC 5116 5.1) */;
+                break;
+#if defined(TLS1_CK_DHE_RSA_CHACHA20_POLY1305)
+            case TLS1_CK_DHE_RSA_CHACHA20_POLY1305:
+            case TLS1_CK_ECDHE_RSA_CHACHA20_POLY1305:
+            case TLS1_CK_ECDHE_ECDSA_CHACHA20_POLY1305:
+                sock->ssl->record_overhead = 5 /* header */ + 16 /* tag */;
+                break;
+#endif
+            default:
+                sock->ssl->record_overhead = 32; /* sufficiently large number that can hold most payloads */
+                break;
+            }
+        }
+    }
+
+    /* set ssl session into the cache */
+    if (sock->ssl->ossl != NULL && !SSL_is_server(sock->ssl->ossl) && sock->ssl->handshake.client.session_cache != NULL) {
+        if (err == NULL || err == h2o_socket_error_ssl_cert_name_mismatch) {
+            SSL_SESSION *session = SSL_get1_session(sock->ssl->ossl);
+            h2o_cache_set(sock->ssl->handshake.client.session_cache, h2o_now(h2o_socket_get_loop(sock)),
+                          sock->ssl->handshake.client.session_cache_key, sock->ssl->handshake.client.session_cache_key_hash,
+                          h2o_iovec_init(session, 1));
+        }
+    }
+
+    h2o_socket_cb handshake_cb = sock->ssl->handshake.cb;
+    sock->_cb.write = NULL;
+    sock->ssl->handshake.cb = NULL;
+    if (err == NULL)
+        decode_ssl_input(sock);
+    handshake_cb(sock, err);
+}
+
+static void proceed_handshake(h2o_socket_t *sock, const char *err)
+{
+    h2o_iovec_t first_input = {NULL};
+    int ret = 0;
+
+    sock->_cb.write = NULL;
+
+    if (err != NULL) {
+        goto Complete;
+    }
+
+    if (sock->ssl->ossl == NULL) {
+#if H2O_USE_PICOTLS
+        /* prepare I/O */
+        size_t consumed = sock->ssl->input.encrypted->size;
+        ptls_buffer_t wbuf;
+        ptls_buffer_init(&wbuf, "", 0);
+
+        if (sock->ssl->ptls != NULL) {
+            /* picotls in action, proceed the handshake */
+            ret = ptls_handshake(sock->ssl->ptls, &wbuf, sock->ssl->input.encrypted->bytes, &consumed, NULL);
+        } else {
+            /* start using picotls if the first packet contains TLS 1.3 CH */
+            ptls_context_t *ptls_ctx = h2o_socket_ssl_get_picotls_context(sock->ssl->ssl_ctx);
+            if (ptls_ctx != NULL) {
+                ptls_t *ptls = ptls_new(ptls_ctx, 1);
+                if (ptls == NULL)
+                    h2o_fatal("no memory");
+                ret = ptls_handshake(ptls, &wbuf, sock->ssl->input.encrypted->bytes, &consumed, NULL);
+                if ((ret == 0 || ret == PTLS_ERROR_IN_PROGRESS) && wbuf.off != 0) {
+                    sock->ssl->ptls = ptls;
+                    sock->ssl->handshake.server.async_resumption.state = ASYNC_RESUMPTION_STATE_COMPLETE;
+                } else {
+                    ptls_free(ptls);
+                }
+            }
+        }
+
+        if (sock->ssl->ptls != NULL) {
+            /* complete I/O done by picotls */
+            h2o_buffer_consume(&sock->ssl->input.encrypted, consumed);
+            switch (ret) {
+            case 0:
+            case PTLS_ERROR_IN_PROGRESS:
+                if (wbuf.off != 0) {
+                    h2o_socket_read_stop(sock);
+                    write_ssl_bytes(sock, wbuf.base, wbuf.off);
+                    flush_pending_ssl(sock, ret == 0 ? on_handshake_complete : proceed_handshake);
+                } else {
+                    h2o_socket_read_start(sock, proceed_handshake);
+                }
+                break;
+            default:
+                /* FIXME send alert in wbuf before calling the callback */
+                on_handshake_complete(sock, "picotls handshake error");
+                break;
+            }
+            ptls_buffer_dispose(&wbuf);
+            return;
+        }
+        ptls_buffer_dispose(&wbuf);
+#endif
+
+        /* fallback to openssl if the attempt failed */
+        create_ossl(sock);
+    }
+
+    if (sock->ssl->ossl != NULL && SSL_is_server(sock->ssl->ossl) &&
+        sock->ssl->handshake.server.async_resumption.state == ASYNC_RESUMPTION_STATE_RECORD) {
+        if (sock->ssl->input.encrypted->size <= 1024) {
+            /* retain a copy of input if performing async resumption */
+            first_input = h2o_iovec_init(alloca(sock->ssl->input.encrypted->size), sock->ssl->input.encrypted->size);
+            memcpy(first_input.base, sock->ssl->input.encrypted->bytes, first_input.len);
+        } else {
+            sock->ssl->handshake.server.async_resumption.state = ASYNC_RESUMPTION_STATE_COMPLETE;
+        }
+    }
+
+Redo:
+    ERR_clear_error();
+    if (SSL_is_server(sock->ssl->ossl)) {
+        ret = SSL_accept(sock->ssl->ossl);
+        switch (sock->ssl->handshake.server.async_resumption.state) {
+        case ASYNC_RESUMPTION_STATE_COMPLETE:
+            break;
+        case ASYNC_RESUMPTION_STATE_RECORD:
+            /* async resumption has not been triggered; proceed the state to complete */
+            sock->ssl->handshake.server.async_resumption.state = ASYNC_RESUMPTION_STATE_COMPLETE;
+            break;
+        case ASYNC_RESUMPTION_STATE_REQUEST_SENT: {
+            /* sent async request, reset the ssl state, and wait for async response */
+            assert(ret < 0);
+            SSL_free(sock->ssl->ossl);
+            create_ossl(sock);
+            clear_output_buffer(sock->ssl);
+            h2o_buffer_consume(&sock->ssl->input.encrypted, sock->ssl->input.encrypted->size);
+            h2o_buffer_reserve(&sock->ssl->input.encrypted, first_input.len);
+            memcpy(sock->ssl->input.encrypted->bytes, first_input.base, first_input.len);
+            sock->ssl->input.encrypted->size = first_input.len;
+            h2o_socket_read_stop(sock);
+            return;
+        }
+        default:
+            h2o_fatal("unexpected async resumption state");
+            break;
+        }
+    } else {
+        ret = SSL_connect(sock->ssl->ossl);
+    }
+
+    if (ret == 0 || (ret < 0 && SSL_get_error(sock->ssl->ossl, ret) != SSL_ERROR_WANT_READ)) {
+        /* failed */
+        long verify_result = SSL_get_verify_result(sock->ssl->ossl);
+        if (verify_result != X509_V_OK) {
+            err = X509_verify_cert_error_string(verify_result);
+        } else {
+            err = "ssl handshake failure";
+        }
+        goto Complete;
+    }
+
+    if (sock->ssl->output.bufs.size != 0) {
+        h2o_socket_read_stop(sock);
+        flush_pending_ssl(sock, ret == 1 ? on_handshake_complete : proceed_handshake);
+    } else {
+        if (ret == 1) {
+            if (!SSL_is_server(sock->ssl->ossl)) {
+                X509 *cert = SSL_get_peer_certificate(sock->ssl->ossl);
+                if (cert != NULL) {
+                    switch (validate_hostname(sock->ssl->handshake.client.server_name, cert)) {
+                    case MatchFound:
+                        /* ok */
+                        break;
+                    case MatchNotFound:
+                        err = h2o_socket_error_ssl_cert_name_mismatch;
+                        break;
+                    default:
+                        err = h2o_socket_error_ssl_cert_invalid;
+                        break;
+                    }
+                    X509_free(cert);
+                } else {
+                    err = h2o_socket_error_ssl_no_cert;
+                }
+            }
+            goto Complete;
+        }
+        if (sock->ssl->input.encrypted->size != 0)
+            goto Redo;
+        h2o_socket_read_start(sock, proceed_handshake);
+    }
+    return;
+
+Complete:
+    h2o_socket_read_stop(sock);
+    on_handshake_complete(sock, err);
+}
+
+void h2o_socket_ssl_handshake(h2o_socket_t *sock, SSL_CTX *ssl_ctx, const char *server_name, h2o_socket_cb handshake_cb)
+{
+    sock->ssl = h2o_mem_alloc(sizeof(*sock->ssl));
+    memset(sock->ssl, 0, offsetof(struct st_h2o_socket_ssl_t, output.pool));
+
+    sock->ssl->ssl_ctx = ssl_ctx;
+
+    /* setup the buffers; sock->input should be empty, sock->ssl->input.encrypted should contain the initial input, if any */
+    h2o_buffer_init(&sock->ssl->input.encrypted, &h2o_socket_buffer_prototype);
+    if (sock->input->size != 0) {
+        h2o_buffer_t *tmp = sock->input;
+        sock->input = sock->ssl->input.encrypted;
+        sock->ssl->input.encrypted = tmp;
+    }
+
+    h2o_mem_init_pool(&sock->ssl->output.pool);
+
+    sock->ssl->handshake.cb = handshake_cb;
+    if (server_name == NULL) {
+        /* is server */
+        if (SSL_CTX_sess_get_get_cb(sock->ssl->ssl_ctx) != NULL)
+            sock->ssl->handshake.server.async_resumption.state = ASYNC_RESUMPTION_STATE_RECORD;
+        if (sock->ssl->input.encrypted->size != 0)
+            proceed_handshake(sock, 0);
+        else
+            h2o_socket_read_start(sock, proceed_handshake);
+    } else {
+        create_ossl(sock);
+        h2o_cache_t *session_cache = h2o_socket_ssl_get_session_cache(sock->ssl->ssl_ctx);
+        if (session_cache != NULL) {
+            struct sockaddr_storage sa;
+            int32_t port;
+            if (h2o_socket_getpeername(sock, (struct sockaddr *)&sa) != 0 &&
+                (port = h2o_socket_getport((struct sockaddr *)&sa)) != -1) {
+                /* session cache is available */
+                h2o_iovec_t session_cache_key;
+                session_cache_key.base = h2o_mem_alloc(strlen(server_name) + sizeof(":" H2O_UINT16_LONGEST_STR));
+                session_cache_key.len = sprintf(session_cache_key.base, "%s:%" PRIu16, server_name, (uint16_t)port);
+                sock->ssl->handshake.client.session_cache = session_cache;
+                sock->ssl->handshake.client.session_cache_key = session_cache_key;
+                sock->ssl->handshake.client.session_cache_key_hash =
+                    h2o_cache_calchash(session_cache_key.base, session_cache_key.len);
+
+                /* fetch from session cache */
+                h2o_cache_ref_t *cacheref = h2o_cache_fetch(session_cache, h2o_now(h2o_socket_get_loop(sock)),
+                                                            sock->ssl->handshake.client.session_cache_key,
+                                                            sock->ssl->handshake.client.session_cache_key_hash);
+                if (cacheref != NULL) {
+                    SSL_set_session(sock->ssl->ossl, (SSL_SESSION *)cacheref->value.base);
+                    h2o_cache_release(session_cache, cacheref);
+                }
+            }
+        }
+        sock->ssl->handshake.client.server_name = h2o_strdup(NULL, server_name, SIZE_MAX).base;
+        SSL_set_tlsext_host_name(sock->ssl->ossl, sock->ssl->handshake.client.server_name);
+        proceed_handshake(sock, 0);
+    }
+}
+
+void h2o_socket_ssl_resume_server_handshake(h2o_socket_t *sock, h2o_iovec_t session_data)
+{
+    if (session_data.len != 0) {
+        const unsigned char *p = (void *)session_data.base;
+        sock->ssl->handshake.server.async_resumption.session_data = d2i_SSL_SESSION(NULL, &p, (long)session_data.len);
+        /* FIXME warn on failure */
+    }
+
+    sock->ssl->handshake.server.async_resumption.state = ASYNC_RESUMPTION_STATE_COMPLETE;
+    proceed_handshake(sock, 0);
+
+    if (sock->ssl->handshake.server.async_resumption.session_data != NULL) {
+        SSL_SESSION_free(sock->ssl->handshake.server.async_resumption.session_data);
+        sock->ssl->handshake.server.async_resumption.session_data = NULL;
+    }
+}
+
+void h2o_socket_ssl_async_resumption_init(h2o_socket_ssl_resumption_get_async_cb get_async_cb,
+                                          h2o_socket_ssl_resumption_new_cb new_cb)
+{
+    resumption_get_async = get_async_cb;
+    resumption_new = new_cb;
+}
+
+void h2o_socket_ssl_async_resumption_setup_ctx(SSL_CTX *ctx)
+{
+    SSL_CTX_sess_set_get_cb(ctx, on_async_resumption_get);
+    SSL_CTX_sess_set_new_cb(ctx, on_async_resumption_new);
+    /* if necessary, it is the responsibility of the caller to disable the internal cache */
+}
+
+#if H2O_USE_PICOTLS
+
+static int get_ptls_index(void)
+{
+    static int index = -1;
+
+    if (index == -1) {
+        static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+        pthread_mutex_lock(&mutex);
+        if (index == -1) {
+            index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, NULL);
+            assert(index != -1);
+        }
+        pthread_mutex_unlock(&mutex);
+    }
+
+    return index;
+}
+
+ptls_context_t *h2o_socket_ssl_get_picotls_context(SSL_CTX *ossl)
+{
+    return SSL_CTX_get_ex_data(ossl, get_ptls_index());
+}
+
+void h2o_socket_ssl_set_picotls_context(SSL_CTX *ossl, ptls_context_t *ptls)
+{
+    SSL_CTX_set_ex_data(ossl, get_ptls_index(), ptls);
+}
+
+#endif
+
+static void on_dispose_ssl_ctx_session_cache(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx, long argl, void *argp)
+{
+    h2o_cache_t *ssl_session_cache = (h2o_cache_t *)ptr;
+    if (ssl_session_cache != NULL)
+        h2o_cache_destroy(ssl_session_cache);
+}
+
+static int get_ssl_session_cache_index(void)
+{
+    static int index = -1;
+    static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+    pthread_mutex_lock(&mutex);
+    if (index == -1) {
+        index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, on_dispose_ssl_ctx_session_cache);
+        assert(index != -1);
+    }
+    pthread_mutex_unlock(&mutex);
+    return index;
+}
+
+h2o_cache_t *h2o_socket_ssl_get_session_cache(SSL_CTX *ctx)
+{
+    return (h2o_cache_t *)SSL_CTX_get_ex_data(ctx, get_ssl_session_cache_index());
+}
+
+void h2o_socket_ssl_set_session_cache(SSL_CTX *ctx, h2o_cache_t *cache)
+{
+    SSL_CTX_set_ex_data(ctx, get_ssl_session_cache_index(), cache);
+}
+
+void h2o_socket_ssl_destroy_session_cache_entry(h2o_iovec_t value)
+{
+    SSL_SESSION *session = (SSL_SESSION *)value.base;
+    SSL_SESSION_free(session);
+}
+
+h2o_iovec_t h2o_socket_ssl_get_selected_protocol(h2o_socket_t *sock)
+{
+    const unsigned char *data = NULL;
+    unsigned len = 0;
+
+    assert(sock->ssl != NULL);
+
+#if H2O_USE_PICOTLS
+    if (sock->ssl->ptls != NULL) {
+        const char *proto = ptls_get_negotiated_protocol(sock->ssl->ptls);
+        return proto != NULL ? h2o_iovec_init(proto, strlen(proto)) : h2o_iovec_init(NULL, 0);
+    }
+#endif
+
+#if H2O_USE_ALPN
+    if (len == 0)
+        SSL_get0_alpn_selected(sock->ssl->ossl, &data, &len);
+#endif
+#if H2O_USE_NPN
+    if (len == 0)
+        SSL_get0_next_proto_negotiated(sock->ssl->ossl, &data, &len);
+#endif
+
+    return h2o_iovec_init(data, len);
+}
+
+static int on_alpn_select(SSL *ssl, const unsigned char **out, unsigned char *outlen, const unsigned char *_in, unsigned int inlen,
+                          void *_protocols)
+{
+    const h2o_iovec_t *protocols = _protocols;
+    size_t i;
+
+    for (i = 0; protocols[i].len != 0; ++i) {
+        const unsigned char *in = _in, *in_end = in + inlen;
+        while (in != in_end) {
+            size_t cand_len = *in++;
+            if (in_end - in < cand_len) {
+                /* broken request */
+                return SSL_TLSEXT_ERR_NOACK;
+            }
+            if (cand_len == protocols[i].len && memcmp(in, protocols[i].base, cand_len) == 0) {
+                goto Found;
+            }
+            in += cand_len;
+        }
+    }
+    /* not found */
+    return SSL_TLSEXT_ERR_NOACK;
+
+Found:
+    *out = (const unsigned char *)protocols[i].base;
+    *outlen = (unsigned char)protocols[i].len;
+    return SSL_TLSEXT_ERR_OK;
+}
+
+#if H2O_USE_ALPN
+
+void h2o_ssl_register_alpn_protocols(SSL_CTX *ctx, const h2o_iovec_t *protocols)
+{
+    SSL_CTX_set_alpn_select_cb(ctx, on_alpn_select, (void *)protocols);
+}
+
+#endif
+
+#if H2O_USE_NPN
+
+static int on_npn_advertise(SSL *ssl, const unsigned char **out, unsigned *outlen, void *protocols)
+{
+    *out = protocols;
+    *outlen = (unsigned)strlen(protocols);
+    return SSL_TLSEXT_ERR_OK;
+}
+
+void h2o_ssl_register_npn_protocols(SSL_CTX *ctx, const char *protocols)
+{
+    SSL_CTX_set_next_protos_advertised_cb(ctx, on_npn_advertise, (void *)protocols);
+}
+
+#endif
+
+void h2o_sliding_counter_stop(h2o_sliding_counter_t *counter, uint64_t now)
+{
+    uint64_t elapsed;
+
+    assert(counter->cur.start_at != 0);
+
+    /* calculate the time used, and reset cur */
+    if (now <= counter->cur.start_at)
+        elapsed = 0;
+    else
+        elapsed = now - counter->cur.start_at;
+    counter->cur.start_at = 0;
+
+    /* adjust prev */
+    counter->prev.sum += elapsed;
+    counter->prev.sum -= counter->prev.slots[counter->prev.index];
+    counter->prev.slots[counter->prev.index] = elapsed;
+    if (++counter->prev.index >= sizeof(counter->prev.slots) / sizeof(counter->prev.slots[0]))
+        counter->prev.index = 0;
+
+    /* recalc average */
+    counter->average = counter->prev.sum / (sizeof(counter->prev.slots) / sizeof(counter->prev.slots[0]));
+}
diff --git a/debian/vendor-h2o/lib/common/socket/evloop.c.h b/debian/vendor-h2o/lib/common/socket/evloop.c.h
new file mode 100644
index 0000000..754ed23
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/socket/evloop.c.h
@@ -0,0 +1,624 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku, Fastly, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <sys/uio.h>
+#include <unistd.h>
+#include "cloexec.h"
+#include "h2o/linklist.h"
+
+#if !defined(H2O_USE_ACCEPT4)
+#ifdef __linux__
+#define H2O_USE_ACCEPT4 1
+#elif __FreeBSD__ >= 10
+#define H2O_USE_ACCEPT4 1
+#else
+#define H2O_USE_ACCEPT4 0
+#endif
+#endif
+
+struct st_h2o_evloop_socket_t {
+    h2o_socket_t super;
+    int fd;
+    int _flags;
+    h2o_evloop_t *loop;
+    struct {
+        size_t cnt;
+        h2o_iovec_t *bufs;
+        union {
+            h2o_iovec_t *alloced_ptr;
+            h2o_iovec_t smallbufs[4];
+        };
+    } _wreq;
+    struct st_h2o_evloop_socket_t *_next_pending;
+    struct st_h2o_evloop_socket_t *_next_statechanged;
+};
+
+static void link_to_pending(struct st_h2o_evloop_socket_t *sock);
+static void write_pending(struct st_h2o_evloop_socket_t *sock);
+static h2o_evloop_t *create_evloop(size_t sz);
+static void update_now(h2o_evloop_t *loop);
+static int32_t adjust_max_wait(h2o_evloop_t *loop, int32_t max_wait);
+
+/* functions to be defined in the backends */
+static int evloop_do_proceed(h2o_evloop_t *loop, int32_t max_wait);
+static void evloop_do_on_socket_create(struct st_h2o_evloop_socket_t *sock);
+static void evloop_do_on_socket_close(struct st_h2o_evloop_socket_t *sock);
+static void evloop_do_on_socket_export(struct st_h2o_evloop_socket_t *sock);
+
+#if H2O_USE_POLL || H2O_USE_EPOLL || H2O_USE_KQUEUE
+/* explicitly specified */
+#else
+#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+#define H2O_USE_KQUEUE 1
+#elif defined(__linux)
+#define H2O_USE_EPOLL 1
+#else
+#define H2O_USE_POLL 1
+#endif
+#endif
+
+#if H2O_USE_POLL
+#include "evloop/poll.c.h"
+#elif H2O_USE_EPOLL
+#include "evloop/epoll.c.h"
+#elif H2O_USE_KQUEUE
+#include "evloop/kqueue.c.h"
+#else
+#error "poller not specified"
+#endif
+
+void link_to_pending(struct st_h2o_evloop_socket_t *sock)
+{
+    if (sock->_next_pending == sock) {
+        struct st_h2o_evloop_socket_t **slot = (sock->_flags & H2O_SOCKET_FLAG_IS_ACCEPTED_CONNECTION) != 0
+                                                   ? &sock->loop->_pending_as_server
+                                                   : &sock->loop->_pending_as_client;
+        sock->_next_pending = *slot;
+        *slot = sock;
+    }
+}
+
+static void link_to_statechanged(struct st_h2o_evloop_socket_t *sock)
+{
+    if (sock->_next_statechanged == sock) {
+        sock->_next_statechanged = NULL;
+        *sock->loop->_statechanged.tail_ref = sock;
+        sock->loop->_statechanged.tail_ref = &sock->_next_statechanged;
+    }
+}
+
+static const char *on_read_core(int fd, h2o_buffer_t **input)
+{
+    int read_any = 0;
+
+    while (1) {
+        ssize_t rret;
+        h2o_iovec_t buf = h2o_buffer_reserve(input, 4096);
+        if (buf.base == NULL) {
+            /* memory allocation failed */
+            return h2o_socket_error_out_of_memory;
+        }
+        while ((rret = read(fd, buf.base, buf.len <= INT_MAX / 2 ? buf.len : INT_MAX / 2 + 1)) == -1 && errno == EINTR)
+            ;
+        if (rret == -1) {
+            if (errno == EAGAIN)
+                break;
+            else
+                return h2o_socket_error_io;
+        } else if (rret == 0) {
+            if (!read_any)
+                return h2o_socket_error_closed; /* TODO notify close */
+            break;
+        }
+        (*input)->size += rret;
+        if (buf.len != rret)
+            break;
+        read_any = 1;
+    }
+    return NULL;
+}
+
+static void wreq_free_buffer_if_allocated(struct st_h2o_evloop_socket_t *sock)
+{
+    if (sock->_wreq.smallbufs <= sock->_wreq.bufs &&
+        sock->_wreq.bufs <= sock->_wreq.smallbufs + sizeof(sock->_wreq.smallbufs) / sizeof(sock->_wreq.smallbufs[0])) {
+        /* no need to free */
+    } else {
+        free(sock->_wreq.alloced_ptr);
+        sock->_wreq.bufs = sock->_wreq.smallbufs;
+    }
+}
+
+static int write_core(int fd, h2o_iovec_t **bufs, size_t *bufcnt)
+{
+    int iovcnt;
+    ssize_t wret;
+
+    if (*bufcnt != 0) {
+        do {
+            /* write */
+            iovcnt = IOV_MAX;
+            if (*bufcnt < iovcnt)
+                iovcnt = (int)*bufcnt;
+            while ((wret = writev(fd, (struct iovec *)*bufs, iovcnt)) == -1 && errno == EINTR)
+                ;
+            if (wret == -1) {
+                if (errno != EAGAIN)
+                    return -1;
+                break;
+            }
+            /* adjust the buffer */
+            while ((*bufs)->len < wret) {
+                wret -= (*bufs)->len;
+                ++*bufs;
+                --*bufcnt;
+                assert(*bufcnt != 0);
+            }
+            if (((*bufs)->len -= wret) == 0) {
+                ++*bufs;
+                --*bufcnt;
+            } else {
+                (*bufs)->base += wret;
+            }
+        } while (*bufcnt != 0 && iovcnt == IOV_MAX);
+    }
+
+    return 0;
+}
+
+void write_pending(struct st_h2o_evloop_socket_t *sock)
+{
+    assert(sock->super._cb.write != NULL);
+
+    /* DONT_WRITE poll */
+    if (sock->_wreq.cnt == 0)
+        goto Complete;
+
+    /* write */
+    if (write_core(sock->fd, &sock->_wreq.bufs, &sock->_wreq.cnt) == 0 && sock->_wreq.cnt != 0) {
+        /* partial write */
+        return;
+    }
+
+    /* either completed or failed */
+    wreq_free_buffer_if_allocated(sock);
+
+Complete:
+    sock->_flags |= H2O_SOCKET_FLAG_IS_WRITE_NOTIFY;
+    link_to_pending(sock);
+    link_to_statechanged(sock); /* might need to disable the write polling */
+}
+
+static void read_on_ready(struct st_h2o_evloop_socket_t *sock)
+{
+    const char *err = 0;
+    size_t prev_bytes_read = sock->super.input->size;
+
+    if ((sock->_flags & H2O_SOCKET_FLAG_DONT_READ) != 0)
+        goto Notify;
+
+    if ((err = on_read_core(sock->fd, sock->super.ssl == NULL ? &sock->super.input : &sock->super.ssl->input.encrypted)) != NULL)
+        goto Notify;
+
+    if (sock->super.ssl != NULL && sock->super.ssl->handshake.cb == NULL)
+        err = decode_ssl_input(&sock->super);
+
+Notify:
+    /* the application may get notified even if no new data is avaiable.  The
+     * behavior is intentional; it is designed as such so that the applications
+     * can update their timeout counters when a partial SSL record arrives.
+     */
+    sock->super.bytes_read = sock->super.input->size - prev_bytes_read;
+    sock->super._cb.read(&sock->super, err);
+}
+
+void do_dispose_socket(h2o_socket_t *_sock)
+{
+    struct st_h2o_evloop_socket_t *sock = (struct st_h2o_evloop_socket_t *)_sock;
+
+    evloop_do_on_socket_close(sock);
+    wreq_free_buffer_if_allocated(sock);
+    if (sock->fd != -1) {
+        close(sock->fd);
+        sock->fd = -1;
+    }
+    sock->_flags = H2O_SOCKET_FLAG_IS_DISPOSED;
+    link_to_statechanged(sock);
+}
+
+void do_write(h2o_socket_t *_sock, h2o_iovec_t *_bufs, size_t bufcnt, h2o_socket_cb cb)
+{
+    struct st_h2o_evloop_socket_t *sock = (struct st_h2o_evloop_socket_t *)_sock;
+    h2o_iovec_t *bufs;
+    h2o_iovec_t *tofree = NULL;
+
+    assert(sock->super._cb.write == NULL);
+    assert(sock->_wreq.cnt == 0);
+    sock->super._cb.write = cb;
+
+    /* cap the number of buffers, since we're using alloca */
+    if (bufcnt > 10000)
+        bufs = tofree = h2o_mem_alloc(sizeof(*bufs) * bufcnt);
+    else
+        bufs = alloca(sizeof(*bufs) * bufcnt);
+
+    memcpy(bufs, _bufs, sizeof(*bufs) * bufcnt);
+
+    /* try to write now */
+    if (write_core(sock->fd, &bufs, &bufcnt) != 0) {
+        /* fill in _wreq.bufs with fake data to indicate error */
+        sock->_wreq.bufs = sock->_wreq.smallbufs;
+        sock->_wreq.cnt = 1;
+        *sock->_wreq.bufs = h2o_iovec_init(H2O_STRLIT("deadbeef"));
+        sock->_flags |= H2O_SOCKET_FLAG_IS_WRITE_NOTIFY;
+        link_to_pending(sock);
+        goto Out;
+    }
+    if (bufcnt == 0) {
+        /* write complete, schedule the callback */
+        sock->_flags |= H2O_SOCKET_FLAG_IS_WRITE_NOTIFY;
+        link_to_pending(sock);
+        goto Out;
+    }
+
+
+    /* setup the buffer to send pending data */
+    if (bufcnt <= sizeof(sock->_wreq.smallbufs) / sizeof(sock->_wreq.smallbufs[0])) {
+        sock->_wreq.bufs = sock->_wreq.smallbufs;
+    } else {
+        sock->_wreq.bufs = h2o_mem_alloc(sizeof(h2o_iovec_t) * bufcnt);
+        sock->_wreq.alloced_ptr = sock->_wreq.bufs;
+    }
+    memcpy(sock->_wreq.bufs, bufs, sizeof(h2o_iovec_t) * bufcnt);
+    sock->_wreq.cnt = bufcnt;
+
+    /* schedule the write */
+    link_to_statechanged(sock);
+Out:
+    free(tofree);
+}
+
+int h2o_socket_get_fd(h2o_socket_t *_sock)
+{
+    struct st_h2o_evloop_socket_t *sock = (struct st_h2o_evloop_socket_t *)_sock;
+    return sock->fd;
+}
+
+void do_read_start(h2o_socket_t *_sock)
+{
+    struct st_h2o_evloop_socket_t *sock = (struct st_h2o_evloop_socket_t *)_sock;
+
+    link_to_statechanged(sock);
+}
+
+void do_read_stop(h2o_socket_t *_sock)
+{
+    struct st_h2o_evloop_socket_t *sock = (struct st_h2o_evloop_socket_t *)_sock;
+
+    sock->_flags &= ~H2O_SOCKET_FLAG_IS_READ_READY;
+    link_to_statechanged(sock);
+}
+
+void h2o_socket_dont_read(h2o_socket_t *_sock, int dont_read)
+{
+    struct st_h2o_evloop_socket_t *sock = (struct st_h2o_evloop_socket_t *)_sock;
+
+    if (dont_read) {
+        sock->_flags |= H2O_SOCKET_FLAG_DONT_READ;
+    } else {
+        sock->_flags &= ~H2O_SOCKET_FLAG_DONT_READ;
+    }
+}
+
+int do_export(h2o_socket_t *_sock, h2o_socket_export_t *info)
+{
+    struct st_h2o_evloop_socket_t *sock = (void *)_sock;
+
+    assert((sock->_flags & H2O_SOCKET_FLAG_IS_DISPOSED) == 0);
+    evloop_do_on_socket_export(sock);
+    sock->_flags = H2O_SOCKET_FLAG_IS_DISPOSED;
+
+    info->fd = sock->fd;
+    sock->fd = -1;
+
+    return 0;
+}
+
+h2o_socket_t *do_import(h2o_loop_t *loop, h2o_socket_export_t *info)
+{
+    return h2o_evloop_socket_create(loop, info->fd, 0);
+}
+
+h2o_loop_t *h2o_socket_get_loop(h2o_socket_t *_sock)
+{
+    struct st_h2o_evloop_socket_t *sock = (void *)_sock;
+    return sock->loop;
+}
+
+socklen_t h2o_socket_getsockname(h2o_socket_t *_sock, struct sockaddr *sa)
+{
+    struct st_h2o_evloop_socket_t *sock = (void *)_sock;
+    socklen_t len = sizeof(struct sockaddr_storage);
+    if (getsockname(sock->fd, sa, &len) != 0)
+        return 0;
+    return len;
+}
+
+socklen_t get_peername_uncached(h2o_socket_t *_sock, struct sockaddr *sa)
+{
+    struct st_h2o_evloop_socket_t *sock = (void *)_sock;
+    socklen_t len = sizeof(struct sockaddr_storage);
+    if (getpeername(sock->fd, sa, &len) != 0)
+        return 0;
+    return len;
+}
+
+static struct st_h2o_evloop_socket_t *create_socket(h2o_evloop_t *loop, int fd, int flags)
+{
+    struct st_h2o_evloop_socket_t *sock;
+
+    fcntl(fd, F_SETFL, O_NONBLOCK);
+
+    sock = h2o_mem_alloc(sizeof(*sock));
+    memset(sock, 0, sizeof(*sock));
+    h2o_buffer_init(&sock->super.input, &h2o_socket_buffer_prototype);
+    sock->loop = loop;
+    sock->fd = fd;
+    sock->_flags = flags;
+    sock->_wreq.bufs = sock->_wreq.smallbufs;
+    sock->_next_pending = sock;
+    sock->_next_statechanged = sock;
+
+    evloop_do_on_socket_create(sock);
+
+    return sock;
+}
+
+static struct st_h2o_evloop_socket_t *create_socket_set_nodelay(h2o_evloop_t *loop, int fd, int flags)
+{
+    int on = 1;
+    setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on));
+    return create_socket(loop, fd, flags);
+}
+
+h2o_socket_t *h2o_evloop_socket_create(h2o_evloop_t *loop, int fd, int flags)
+{
+    fcntl(fd, F_SETFL, O_NONBLOCK);
+    return &create_socket(loop, fd, flags)->super;
+}
+
+h2o_socket_t *h2o_evloop_socket_accept(h2o_socket_t *_listener)
+{
+    struct st_h2o_evloop_socket_t *listener = (struct st_h2o_evloop_socket_t *)_listener;
+    int fd;
+
+#if H2O_USE_ACCEPT4
+    if ((fd = accept4(listener->fd, NULL, NULL, SOCK_NONBLOCK | SOCK_CLOEXEC)) == -1)
+        return NULL;
+#else
+    if ((fd = cloexec_accept(listener->fd, NULL, NULL)) == -1)
+        return NULL;
+    fcntl(fd, F_SETFL, O_NONBLOCK);
+#endif
+
+    return &create_socket_set_nodelay(listener->loop, fd, H2O_SOCKET_FLAG_IS_ACCEPTED_CONNECTION)->super;
+}
+
+h2o_socket_t *h2o_socket_connect(h2o_loop_t *loop, struct sockaddr *addr, socklen_t addrlen, h2o_socket_cb cb)
+{
+    int fd;
+    struct st_h2o_evloop_socket_t *sock;
+
+    if ((fd = cloexec_socket(addr->sa_family, SOCK_STREAM, 0)) == -1)
+        return NULL;
+    fcntl(fd, F_SETFL, O_NONBLOCK);
+    if (!(connect(fd, addr, addrlen) == 0 || errno == EINPROGRESS)) {
+        close(fd);
+        return NULL;
+    }
+
+    sock = create_socket_set_nodelay(loop, fd, H2O_SOCKET_FLAG_IS_CONNECTING);
+    h2o_socket_notify_write(&sock->super, cb);
+    return &sock->super;
+}
+
+h2o_evloop_t *create_evloop(size_t sz)
+{
+    h2o_evloop_t *loop = h2o_mem_alloc(sz);
+
+    memset(loop, 0, sz);
+    loop->_statechanged.tail_ref = &loop->_statechanged.head;
+    h2o_linklist_init_anchor(&loop->_timeouts);
+
+    update_now(loop);
+
+    return loop;
+}
+
+void update_now(h2o_evloop_t *loop)
+{
+    struct timeval tv;
+    gettimeofday(&tv, NULL);
+    loop->_now = (uint64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000;
+}
+
+int32_t adjust_max_wait(h2o_evloop_t *loop, int32_t max_wait)
+{
+    uint64_t wake_at = h2o_timeout_get_wake_at(&loop->_timeouts);
+
+    update_now(loop);
+
+    if (wake_at <= loop->_now) {
+        max_wait = 0;
+    } else {
+        uint64_t delta = wake_at - loop->_now;
+        if (delta < max_wait)
+            max_wait = (int32_t)delta;
+    }
+
+    return max_wait;
+}
+
+void h2o_socket_notify_write(h2o_socket_t *_sock, h2o_socket_cb cb)
+{
+    struct st_h2o_evloop_socket_t *sock = (struct st_h2o_evloop_socket_t *)_sock;
+    assert(sock->super._cb.write == NULL);
+    assert(sock->_wreq.cnt == 0);
+
+    sock->super._cb.write = cb;
+    link_to_statechanged(sock);
+}
+
+static void run_socket(struct st_h2o_evloop_socket_t *sock)
+{
+    if ((sock->_flags & H2O_SOCKET_FLAG_IS_DISPOSED) != 0) {
+        /* is freed in updatestates phase */
+        return;
+    }
+
+    if ((sock->_flags & H2O_SOCKET_FLAG_IS_READ_READY) != 0) {
+        sock->_flags &= ~H2O_SOCKET_FLAG_IS_READ_READY;
+        read_on_ready(sock);
+    }
+
+    if ((sock->_flags & H2O_SOCKET_FLAG_IS_WRITE_NOTIFY) != 0) {
+        const char *err = NULL;
+        assert(sock->super._cb.write != NULL);
+        sock->_flags &= ~H2O_SOCKET_FLAG_IS_WRITE_NOTIFY;
+        if (sock->_wreq.cnt != 0) {
+            /* error */
+            err = h2o_socket_error_io;
+            sock->_wreq.cnt = 0;
+        } else if ((sock->_flags & H2O_SOCKET_FLAG_IS_CONNECTING) != 0) {
+            sock->_flags &= ~H2O_SOCKET_FLAG_IS_CONNECTING;
+            int so_err = 0;
+            socklen_t l = sizeof(so_err);
+            so_err = 0;
+            if (getsockopt(sock->fd, SOL_SOCKET, SO_ERROR, &so_err, &l) != 0 || so_err != 0) {
+                /* FIXME lookup the error table */
+                err = h2o_socket_error_conn_fail;
+            }
+        }
+        on_write_complete(&sock->super, err);
+    }
+}
+
+static void run_pending(h2o_evloop_t *loop)
+{
+    struct st_h2o_evloop_socket_t *sock;
+
+    while (loop->_pending_as_server != NULL || loop->_pending_as_client != NULL) {
+        while ((sock = loop->_pending_as_client) != NULL) {
+            loop->_pending_as_client = sock->_next_pending;
+            sock->_next_pending = sock;
+            run_socket(sock);
+        }
+        if ((sock = loop->_pending_as_server) != NULL) {
+            loop->_pending_as_server = sock->_next_pending;
+            sock->_next_pending = sock;
+            run_socket(sock);
+        }
+    }
+}
+
+void h2o_evloop_destroy(h2o_evloop_t *loop)
+{
+    struct st_h2o_evloop_socket_t *sock;
+
+    /* timeouts are governed by the application and MUST be destroyed prior to destroying the loop */
+    assert(h2o_linklist_is_empty(&loop->_timeouts));
+
+    /* dispose all socket */
+    while ((sock = loop->_pending_as_client) != NULL) {
+        loop->_pending_as_client = sock->_next_pending;
+        sock->_next_pending = sock;
+        h2o_socket_close((h2o_socket_t *)sock);
+    }
+    while ((sock = loop->_pending_as_server) != NULL) {
+        loop->_pending_as_server = sock->_next_pending;
+        sock->_next_pending = sock;
+        h2o_socket_close((h2o_socket_t *)sock);
+    }
+
+    /* now all socket are disposedand and placed in linked list statechanged
+     * we can freeing memory in cycle by next_statechanged,
+     */
+    while ((sock = loop->_statechanged.head) != NULL) {
+        loop->_statechanged.head = sock->_next_statechanged;
+        free(sock);
+    }
+
+    /* lastly we need to free loop memory */
+    free(loop);
+}
+
+int h2o_evloop_run(h2o_evloop_t *loop, int32_t max_wait)
+{
+    h2o_linklist_t *node;
+
+    /* update socket states, poll, set readable flags, perform pending writes */
+    if (evloop_do_proceed(loop, max_wait) != 0)
+        return -1;
+
+    /* run the pending callbacks */
+    run_pending(loop);
+
+    /* run the timeouts */
+    for (node = loop->_timeouts.next; node != &loop->_timeouts; node = node->next) {
+        h2o_timeout_t *timeout = H2O_STRUCT_FROM_MEMBER(h2o_timeout_t, _link, node);
+        h2o_timeout_run(loop, timeout, loop->_now);
+    }
+    /* assert h2o_timeout_run has called run_pending */
+    assert(loop->_pending_as_client == NULL);
+    assert(loop->_pending_as_server == NULL);
+
+    if (h2o_sliding_counter_is_running(&loop->exec_time_counter)) {
+        update_now(loop);
+        h2o_sliding_counter_stop(&loop->exec_time_counter, loop->_now);
+    }
+
+    return 0;
+}
+
+void h2o_timeout__do_init(h2o_evloop_t *loop, h2o_timeout_t *timeout)
+{
+    h2o_linklist_insert(&loop->_timeouts, &timeout->_link);
+}
+
+void h2o_timeout__do_dispose(h2o_evloop_t *loop, h2o_timeout_t *timeout)
+{
+    h2o_linklist_unlink(&timeout->_link);
+}
+
+void h2o_timeout__do_link(h2o_evloop_t *loop, h2o_timeout_t *timeout, h2o_timeout_entry_t *entry)
+{
+    /* nothing to do */
+}
+
+void h2o_timeout__do_post_callback(h2o_evloop_t *loop)
+{
+    run_pending(loop);
+}
diff --git a/debian/vendor-h2o/lib/common/socket/evloop/epoll.c.h b/debian/vendor-h2o/lib/common/socket/evloop/epoll.c.h
new file mode 100644
index 0000000..247dac8
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/socket/evloop/epoll.c.h
@@ -0,0 +1,203 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <assert.h>
+#include <limits.h>
+#include <stdio.h>
+#include <sys/epoll.h>
+
+#if 0
+#define DEBUG_LOG(...) fprintf(stderr, __VA_ARGS__)
+#else
+#define DEBUG_LOG(...)
+#endif
+
+struct st_h2o_evloop_epoll_t {
+    h2o_evloop_t super;
+    int ep;
+};
+
+static int update_status(struct st_h2o_evloop_epoll_t *loop)
+{
+    while (loop->super._statechanged.head != NULL) {
+        /* detach the top */
+        struct st_h2o_evloop_socket_t *sock = loop->super._statechanged.head;
+        loop->super._statechanged.head = sock->_next_statechanged;
+        sock->_next_statechanged = sock;
+        /* update the state */
+        if ((sock->_flags & H2O_SOCKET_FLAG_IS_DISPOSED) != 0) {
+            free(sock);
+        } else {
+            int changed = 0, op, ret;
+            struct epoll_event ev;
+            ev.events = 0;
+            if (h2o_socket_is_reading(&sock->super)) {
+                ev.events |= EPOLLIN;
+                if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_READ) == 0) {
+                    sock->_flags |= H2O_SOCKET_FLAG_IS_POLLED_FOR_READ;
+                    changed = 1;
+                }
+            } else {
+                if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_READ) != 0) {
+                    sock->_flags &= ~H2O_SOCKET_FLAG_IS_POLLED_FOR_READ;
+                    changed = 1;
+                }
+            }
+            if (h2o_socket_is_writing(&sock->super)) {
+                ev.events |= EPOLLOUT;
+                if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE) == 0) {
+                    sock->_flags |= H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE;
+                    changed = 1;
+                }
+            } else {
+                if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE) != 0) {
+                    sock->_flags &= ~H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE;
+                    changed = 1;
+                }
+            }
+            if (changed) {
+                if ((sock->_flags & H2O_SOCKET_FLAG__EPOLL_IS_REGISTERED) != 0) {
+                    if (ev.events != 0)
+                        op = EPOLL_CTL_MOD;
+                    else
+                        op = EPOLL_CTL_DEL;
+                } else {
+                    assert(ev.events != 0);
+                    op = EPOLL_CTL_ADD;
+                }
+                ev.data.ptr = sock;
+                while ((ret = epoll_ctl(loop->ep, op, sock->fd, &ev)) != 0 && errno == EINTR)
+                    ;
+                if (ret != 0)
+                    return -1;
+                if (op == EPOLL_CTL_DEL)
+                    sock->_flags &= ~H2O_SOCKET_FLAG__EPOLL_IS_REGISTERED;
+                else
+                    sock->_flags |= H2O_SOCKET_FLAG__EPOLL_IS_REGISTERED;
+            }
+        }
+    }
+    loop->super._statechanged.tail_ref = &loop->super._statechanged.head;
+
+    return 0;
+}
+
+int evloop_do_proceed(h2o_evloop_t *_loop, int32_t max_wait)
+{
+    struct st_h2o_evloop_epoll_t *loop = (struct st_h2o_evloop_epoll_t *)_loop;
+    struct epoll_event events[256];
+    int nevents, i;
+
+    /* collect (and update) status */
+    if (update_status(loop) != 0)
+        return -1;
+
+    /* poll */
+    max_wait = adjust_max_wait(&loop->super, max_wait);
+    nevents = epoll_wait(loop->ep, events, sizeof(events) / sizeof(events[0]), max_wait);
+    update_now(&loop->super);
+    if (nevents == -1)
+        return -1;
+
+    if (nevents != 0)
+        h2o_sliding_counter_start(&loop->super.exec_time_counter, loop->super._now);
+
+    /* update readable flags, perform writes */
+    for (i = 0; i != nevents; ++i) {
+        struct st_h2o_evloop_socket_t *sock = events[i].data.ptr;
+        int notified = 0;
+        if ((events[i].events & (EPOLLIN | EPOLLHUP | EPOLLERR)) != 0) {
+            if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_READ) != 0) {
+                sock->_flags |= H2O_SOCKET_FLAG_IS_READ_READY;
+                link_to_pending(sock);
+                notified = 1;
+            }
+        }
+        if ((events[i].events & (EPOLLOUT | EPOLLHUP | EPOLLERR)) != 0) {
+            if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE) != 0) {
+                write_pending(sock);
+                notified = 1;
+            }
+        }
+        if (!notified) {
+            static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+            static time_t last_reported = 0;
+            time_t now = time(NULL);
+            pthread_mutex_lock(&lock);
+            if (last_reported + 60 < now) {
+                last_reported = now;
+                fprintf(stderr, "ignoring epoll event (fd:%d,event:%x)\n", sock->fd, (int)events[i].events);
+            }
+            pthread_mutex_unlock(&lock);
+        }
+    }
+
+    return 0;
+}
+
+static void evloop_do_on_socket_create(struct st_h2o_evloop_socket_t *sock)
+{
+}
+
+static void evloop_do_on_socket_close(struct st_h2o_evloop_socket_t *sock)
+{
+    struct st_h2o_evloop_epoll_t *loop = (void *)sock->loop;
+    int ret;
+
+    if (sock->fd == -1)
+        return;
+    if ((sock->_flags & H2O_SOCKET_FLAG__EPOLL_IS_REGISTERED) == 0)
+        return;
+    while ((ret = epoll_ctl(loop->ep, EPOLL_CTL_DEL, sock->fd, NULL)) != 0 && errno == EINTR)
+        ;
+    if (ret != 0)
+        fprintf(stderr, "socket_close: epoll(DEL) returned error %d (fd=%d)\n", errno, sock->fd);
+}
+
+static void evloop_do_on_socket_export(struct st_h2o_evloop_socket_t *sock)
+{
+    struct st_h2o_evloop_epoll_t *loop = (void *)sock->loop;
+    int ret;
+
+    if ((sock->_flags & H2O_SOCKET_FLAG__EPOLL_IS_REGISTERED) == 0)
+        return;
+    while ((ret = epoll_ctl(loop->ep, EPOLL_CTL_DEL, sock->fd, NULL)) != 0 && errno == EINTR)
+        ;
+    if (ret != 0)
+        fprintf(stderr, "socket_export: epoll(DEL) returned error %d (fd=%d)\n", errno, sock->fd);
+}
+
+h2o_evloop_t *h2o_evloop_create(void)
+{
+    struct st_h2o_evloop_epoll_t *loop = (struct st_h2o_evloop_epoll_t *)create_evloop(sizeof(*loop));
+
+    pthread_mutex_lock(&cloexec_mutex);
+    loop->ep = epoll_create(10);
+    while (fcntl(loop->ep, F_SETFD, FD_CLOEXEC) == -1) {
+        if (errno != EAGAIN) {
+            fprintf(stderr, "h2o_evloop_create: failed to set FD_CLOEXEC to the epoll fd (errno=%d)\n", errno);
+            abort();
+        }
+    }
+    pthread_mutex_unlock(&cloexec_mutex);
+
+    return &loop->super;
+}
diff --git a/debian/vendor-h2o/lib/common/socket/evloop/kqueue.c.h b/debian/vendor-h2o/lib/common/socket/evloop/kqueue.c.h
new file mode 100644
index 0000000..21288ed
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/socket/evloop/kqueue.c.h
@@ -0,0 +1,186 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <assert.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/event.h>
+#include <sys/time.h>
+
+#if 0
+#define DEBUG_LOG(...) fprintf(stderr, __VA_ARGS__)
+#else
+#define DEBUG_LOG(...)
+#endif
+
+struct st_h2o_socket_loop_kqueue_t {
+    h2o_evloop_t super;
+    int kq;
+};
+
+static void ev_set(struct kevent *ev, int fd, int filter, int flags, struct st_h2o_evloop_socket_t *sock)
+{
+#ifdef __NetBSD__
+    EV_SET(ev, fd, filter, flags, 0, 0, (intptr_t)sock);
+#else
+    EV_SET(ev, fd, filter, flags, 0, 0, sock);
+#endif
+}
+
+static int collect_status(struct st_h2o_socket_loop_kqueue_t *loop, struct kevent *changelist, int changelist_capacity)
+{
+    int change_index = 0;
+
+#define SET_AND_UPDATE(filter, flags)                                                                                              \
+    do {                                                                                                                           \
+        ev_set(changelist + change_index++, sock->fd, filter, flags, sock);                                                        \
+        if (change_index == changelist_capacity) {                                                                                 \
+            int ret;                                                                                                               \
+            while ((ret = kevent(loop->kq, changelist, change_index, NULL, 0, NULL)) != 0 && errno == EINTR)                       \
+                ;                                                                                                                  \
+            if (ret == -1)                                                                                                         \
+                return -1;                                                                                                         \
+            change_index = 0;                                                                                                      \
+        }                                                                                                                          \
+    } while (0)
+
+    while (loop->super._statechanged.head != NULL) {
+        /* detach the top */
+        struct st_h2o_evloop_socket_t *sock = loop->super._statechanged.head;
+        loop->super._statechanged.head = sock->_next_statechanged;
+        sock->_next_statechanged = sock;
+        /* update the state */
+        if ((sock->_flags & H2O_SOCKET_FLAG_IS_DISPOSED) != 0) {
+            free(sock);
+        } else {
+            if (h2o_socket_is_reading(&sock->super)) {
+                if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_READ) == 0) {
+                    sock->_flags |= H2O_SOCKET_FLAG_IS_POLLED_FOR_READ;
+                    SET_AND_UPDATE(EVFILT_READ, EV_ADD);
+                }
+            } else {
+                if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_READ) != 0) {
+                    sock->_flags &= ~H2O_SOCKET_FLAG_IS_POLLED_FOR_READ;
+                    SET_AND_UPDATE(EVFILT_READ, EV_DELETE);
+                }
+            }
+            if (h2o_socket_is_writing(&sock->super)) {
+                if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE) == 0) {
+                    sock->_flags |= H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE;
+                    SET_AND_UPDATE(EVFILT_WRITE, EV_ADD);
+                }
+            } else {
+                if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE) != 0) {
+                    sock->_flags &= ~H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE;
+                    SET_AND_UPDATE(EVFILT_WRITE, EV_DELETE);
+                }
+            }
+        }
+    }
+    loop->super._statechanged.tail_ref = &loop->super._statechanged.head;
+
+    return change_index;
+
+#undef SET_AND_UPDATE
+}
+
+int evloop_do_proceed(h2o_evloop_t *_loop, int32_t max_wait)
+{
+    struct st_h2o_socket_loop_kqueue_t *loop = (struct st_h2o_socket_loop_kqueue_t *)_loop;
+    struct kevent changelist[64], events[128];
+    int nchanges, nevents, i;
+    struct timespec ts;
+
+    /* collect (and update) status */
+    if ((nchanges = collect_status(loop, changelist, sizeof(changelist) / sizeof(changelist[0]))) == -1)
+        return -1;
+
+    /* poll */
+    max_wait = adjust_max_wait(&loop->super, max_wait);
+    ts.tv_sec = max_wait / 1000;
+    ts.tv_nsec = max_wait % 1000 * 1000 * 1000;
+    nevents = kevent(loop->kq, changelist, nchanges, events, sizeof(events) / sizeof(events[0]), &ts);
+
+    update_now(&loop->super);
+    if (nevents == -1)
+        return -1;
+
+    if (nevents != 0)
+        h2o_sliding_counter_start(&loop->super.exec_time_counter, loop->super._now);
+
+    /* update readable flags, perform writes */
+    for (i = 0; i != nevents; ++i) {
+        struct st_h2o_evloop_socket_t *sock = (void *)events[i].udata;
+        assert(sock->fd == events[i].ident);
+        switch (events[i].filter) {
+        case EVFILT_READ:
+            if (sock->_flags != H2O_SOCKET_FLAG_IS_DISPOSED) {
+                sock->_flags |= H2O_SOCKET_FLAG_IS_READ_READY;
+                link_to_pending(sock);
+            }
+            break;
+        case EVFILT_WRITE:
+            if (sock->_flags != H2O_SOCKET_FLAG_IS_DISPOSED) {
+                write_pending(sock);
+            }
+            break;
+        default:
+            break; /* ??? */
+        }
+    }
+
+    return 0;
+}
+
+static void evloop_do_on_socket_create(struct st_h2o_evloop_socket_t *sock)
+{
+}
+
+static void evloop_do_on_socket_close(struct st_h2o_evloop_socket_t *sock)
+{
+}
+
+static void evloop_do_on_socket_export(struct st_h2o_evloop_socket_t *sock)
+{
+    struct st_h2o_socket_loop_kqueue_t *loop = (void *)sock->loop;
+    struct kevent changelist[2];
+    int change_index = 0, ret;
+
+    if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_READ) != 0)
+        ev_set(changelist + change_index++, sock->fd, EVFILT_READ, EV_DELETE, 0);
+    if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE) != 0)
+        ev_set(changelist + change_index++, sock->fd, EVFILT_WRITE, EV_DELETE, 0);
+    if (change_index == 0)
+        return;
+    while ((ret = kevent(loop->kq, changelist, change_index, NULL, 0, NULL)) != 0 && errno == EINTR)
+        ;
+    if (ret == -1)
+        fprintf(stderr, "kevent returned error %d (fd=%d)", errno, sock->fd);
+}
+
+h2o_evloop_t *h2o_evloop_create(void)
+{
+    struct st_h2o_socket_loop_kqueue_t *loop = (struct st_h2o_socket_loop_kqueue_t *)create_evloop(sizeof(*loop));
+
+    loop->kq = kqueue();
+
+    return &loop->super;
+}
diff --git a/debian/vendor-h2o/lib/common/socket/evloop/poll.c.h b/debian/vendor-h2o/lib/common/socket/evloop/poll.c.h
new file mode 100644
index 0000000..8b3f3d1
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/socket/evloop/poll.c.h
@@ -0,0 +1,178 @@
+/*
+ * Copyright (c) 2014,2015 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <stdio.h>
+#include <poll.h>
+
+#if 0
+#define DEBUG_LOG(...) fprintf(stderr, __VA_ARGS__)
+#else
+#define DEBUG_LOG(...)
+#endif
+
+struct st_h2o_evloop_poll_t {
+    h2o_evloop_t super;
+    H2O_VECTOR(struct st_h2o_evloop_socket_t *) socks;
+};
+
+static void update_socks(struct st_h2o_evloop_poll_t *loop)
+{
+    /* update loop->socks */
+    while (loop->super._statechanged.head != NULL) {
+        /* detach the top */
+        struct st_h2o_evloop_socket_t *sock = loop->super._statechanged.head;
+        loop->super._statechanged.head = sock->_next_statechanged;
+        sock->_next_statechanged = sock;
+        /* update the state */
+        if ((sock->_flags & H2O_SOCKET_FLAG_IS_DISPOSED) != 0) {
+            assert(sock->fd == -1);
+            free(sock);
+        } else {
+            assert(sock->fd < loop->socks.size);
+            if (loop->socks.entries[sock->fd] == NULL) {
+                loop->socks.entries[sock->fd] = sock;
+            } else {
+                assert(loop->socks.entries[sock->fd] == sock);
+            }
+            if (h2o_socket_is_reading(&sock->super)) {
+                DEBUG_LOG("setting READ for fd: %d\n", sock->fd);
+                sock->_flags |= H2O_SOCKET_FLAG_IS_POLLED_FOR_READ;
+            } else {
+                DEBUG_LOG("clearing READ for fd: %d\n", sock->fd);
+                sock->_flags &= ~H2O_SOCKET_FLAG_IS_POLLED_FOR_READ;
+            }
+            if (h2o_socket_is_writing(&sock->super)) {
+                DEBUG_LOG("setting WRITE for fd: %d\n", sock->fd);
+                sock->_flags |= H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE;
+            } else {
+                DEBUG_LOG("clearing WRITE for fd: %d\n", sock->fd);
+                sock->_flags &= ~H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE;
+            }
+        }
+    }
+    loop->super._statechanged.tail_ref = &loop->super._statechanged.head;
+}
+
+int evloop_do_proceed(h2o_evloop_t *_loop, int32_t max_wait)
+{
+    struct st_h2o_evloop_poll_t *loop = (struct st_h2o_evloop_poll_t *)_loop;
+    H2O_VECTOR(struct pollfd) pollfds = {NULL};
+    int fd, ret;
+
+    /* update status */
+    update_socks(loop);
+
+    /* build list of fds to be polled */
+    for (fd = 0; fd != loop->socks.size; ++fd) {
+        struct st_h2o_evloop_socket_t *sock = loop->socks.entries[fd];
+        if (sock == NULL)
+            continue;
+        assert(fd == sock->fd);
+        if ((sock->_flags & (H2O_SOCKET_FLAG_IS_POLLED_FOR_READ | H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE)) != 0) {
+            h2o_vector_reserve(NULL, &pollfds, pollfds.size + 1);
+            struct pollfd *slot = pollfds.entries + pollfds.size++;
+            slot->fd = fd;
+            slot->events = 0;
+            slot->revents = 0;
+            if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_READ) != 0)
+                slot->events |= POLLIN;
+            if ((sock->_flags & H2O_SOCKET_FLAG_IS_POLLED_FOR_WRITE) != 0)
+                slot->events |= POLLOUT;
+        }
+    }
+
+    /* call */
+    max_wait = adjust_max_wait(&loop->super, max_wait);
+    ret = poll(pollfds.entries, (nfds_t)pollfds.size, max_wait);
+    update_now(&loop->super);
+    if (ret == -1)
+        goto Exit;
+    DEBUG_LOG("poll returned: %d\n", ret);
+
+    /* update readable flags, perform writes */
+    if (ret > 0) {
+        size_t i;
+        h2o_sliding_counter_start(&loop->super.exec_time_counter, loop->super._now);
+        for (i = 0; i != pollfds.size; ++i) {
+            /* set read_ready flag before calling the write cb, since app. code invoked by the latter may close the socket, clearing
+             * the former flag */
+            if ((pollfds.entries[i].revents & POLLIN) != 0) {
+                struct st_h2o_evloop_socket_t *sock = loop->socks.entries[pollfds.entries[i].fd];
+                assert(sock != NULL);
+                assert(sock->fd == pollfds.entries[i].fd);
+                if (sock->_flags != H2O_SOCKET_FLAG_IS_DISPOSED) {
+                    sock->_flags |= H2O_SOCKET_FLAG_IS_READ_READY;
+                    link_to_pending(sock);
+                    DEBUG_LOG("added fd %d as read_ready\n", sock->fd);
+                }
+            }
+            if ((pollfds.entries[i].revents & POLLOUT) != 0) {
+                struct st_h2o_evloop_socket_t *sock = loop->socks.entries[pollfds.entries[i].fd];
+                assert(sock != NULL);
+                assert(sock->fd == pollfds.entries[i].fd);
+                if (sock->_flags != H2O_SOCKET_FLAG_IS_DISPOSED) {
+                    DEBUG_LOG("handling pending writes on fd %d\n", fd);
+                    write_pending(sock);
+                }
+            }
+        }
+        ret = 0;
+    }
+
+Exit:
+    free(pollfds.entries);
+    return ret;
+}
+
+static void evloop_do_on_socket_create(struct st_h2o_evloop_socket_t *sock)
+{
+    struct st_h2o_evloop_poll_t *loop = (struct st_h2o_evloop_poll_t *)sock->loop;
+
+    if (sock->fd >= loop->socks.size) {
+        h2o_vector_reserve(NULL, &loop->socks, sock->fd + 1);
+        memset(loop->socks.entries + loop->socks.size, 0, (sock->fd + 1 - loop->socks.size) * sizeof(loop->socks.entries[0]));
+        loop->socks.size = sock->fd + 1;
+    }
+
+    if (loop->socks.entries[sock->fd] != NULL)
+        assert(loop->socks.entries[sock->fd]->_flags == H2O_SOCKET_FLAG_IS_DISPOSED);
+}
+
+static void evloop_do_on_socket_close(struct st_h2o_evloop_socket_t *sock)
+{
+    struct st_h2o_evloop_poll_t *loop = (struct st_h2o_evloop_poll_t *)sock->loop;
+
+    if (sock->fd != -1)
+        loop->socks.entries[sock->fd] = NULL;
+}
+
+static void evloop_do_on_socket_export(struct st_h2o_evloop_socket_t *sock)
+{
+    struct st_h2o_evloop_poll_t *loop = (struct st_h2o_evloop_poll_t *)sock->loop;
+    evloop_do_on_socket_close(sock);
+    loop->socks.entries[sock->fd] = NULL;
+}
+
+h2o_evloop_t *h2o_evloop_create(void)
+{
+    struct st_h2o_evloop_poll_t *loop = (struct st_h2o_evloop_poll_t *)create_evloop(sizeof(*loop));
+    return &loop->super;
+}
diff --git a/debian/vendor-h2o/lib/common/socket/uv-binding.c.h b/debian/vendor-h2o/lib/common/socket/uv-binding.c.h
new file mode 100644
index 0000000..44c71c1
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/socket/uv-binding.c.h
@@ -0,0 +1,283 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku, Fastly, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+struct st_h2o_uv_socket_t {
+    h2o_socket_t super;
+    struct {
+        uv_stream_t *stream;
+        uv_close_cb close_cb;
+    } uv;
+    union {
+        uv_connect_t _creq;
+        uv_write_t _wreq;
+    };
+};
+
+static void schedule_timer(h2o_timeout_t *timeout);
+
+static void alloc_inbuf_tcp(uv_handle_t *handle, size_t suggested_size, uv_buf_t *_buf)
+{
+    struct st_h2o_uv_socket_t *sock = handle->data;
+
+    h2o_iovec_t buf = h2o_buffer_reserve(&sock->super.input, 4096);
+    memcpy(_buf, &buf, sizeof(buf));
+}
+
+static void alloc_inbuf_ssl(uv_handle_t *handle, size_t suggested_size, uv_buf_t *_buf)
+{
+    struct st_h2o_uv_socket_t *sock = handle->data;
+
+    h2o_iovec_t buf = h2o_buffer_reserve(&sock->super.ssl->input.encrypted, 4096);
+    memcpy(_buf, &buf, sizeof(buf));
+}
+
+static void on_read_tcp(uv_stream_t *stream, ssize_t nread, const uv_buf_t *_unused)
+{
+    struct st_h2o_uv_socket_t *sock = stream->data;
+
+    if (nread < 0) {
+        sock->super.bytes_read = 0;
+        sock->super._cb.read(&sock->super, h2o_socket_error_closed);
+        return;
+    }
+
+    sock->super.input->size += nread;
+    sock->super.bytes_read = nread;
+    sock->super._cb.read(&sock->super, NULL);
+}
+
+static void on_read_ssl(uv_stream_t *stream, ssize_t nread, const uv_buf_t *_unused)
+{
+    struct st_h2o_uv_socket_t *sock = stream->data;
+    size_t prev_bytes_read = sock->super.input->size;
+    const char *err = h2o_socket_error_io;
+
+    if (nread > 0) {
+        sock->super.ssl->input.encrypted->size += nread;
+        if (sock->super.ssl->handshake.cb == NULL)
+            err = decode_ssl_input(&sock->super);
+        else
+            err = NULL;
+    }
+    sock->super.bytes_read = sock->super.input->size - prev_bytes_read;
+    sock->super._cb.read(&sock->super, err);
+}
+
+static void on_do_write_complete(uv_write_t *wreq, int status)
+{
+    struct st_h2o_uv_socket_t *sock = H2O_STRUCT_FROM_MEMBER(struct st_h2o_uv_socket_t, _wreq, wreq);
+    if (sock->super._cb.write != NULL)
+        on_write_complete(&sock->super, status == 0 ? NULL : h2o_socket_error_io);
+}
+
+static void free_sock(uv_handle_t *handle)
+{
+    struct st_h2o_uv_socket_t *sock = handle->data;
+    uv_close_cb cb = sock->uv.close_cb;
+    free(sock);
+    cb(handle);
+}
+
+void do_dispose_socket(h2o_socket_t *_sock)
+{
+    struct st_h2o_uv_socket_t *sock = (struct st_h2o_uv_socket_t *)_sock;
+    sock->super._cb.write = NULL; /* avoid the write callback getting called when closing the socket (#1249) */
+    uv_close((uv_handle_t *)sock->uv.stream, free_sock);
+}
+
+int h2o_socket_get_fd(h2o_socket_t *_sock)
+{
+    int fd, ret;
+    struct st_h2o_uv_socket_t *sock = (struct st_h2o_uv_socket_t *)_sock;
+
+    ret = uv_fileno((uv_handle_t *)sock->uv.stream, (uv_os_fd_t *)&fd);
+    if (ret)
+        return -1;
+
+    return fd;
+}
+
+void do_read_start(h2o_socket_t *_sock)
+{
+    struct st_h2o_uv_socket_t *sock = (struct st_h2o_uv_socket_t *)_sock;
+
+    if (sock->super.ssl == NULL)
+        uv_read_start(sock->uv.stream, alloc_inbuf_tcp, on_read_tcp);
+    else
+        uv_read_start(sock->uv.stream, alloc_inbuf_ssl, on_read_ssl);
+}
+
+void do_read_stop(h2o_socket_t *_sock)
+{
+    struct st_h2o_uv_socket_t *sock = (struct st_h2o_uv_socket_t *)_sock;
+    uv_read_stop(sock->uv.stream);
+}
+
+void do_write(h2o_socket_t *_sock, h2o_iovec_t *bufs, size_t bufcnt, h2o_socket_cb cb)
+{
+    struct st_h2o_uv_socket_t *sock = (struct st_h2o_uv_socket_t *)_sock;
+
+    assert(sock->super._cb.write == NULL);
+    sock->super._cb.write = cb;
+
+    uv_write(&sock->_wreq, sock->uv.stream, (uv_buf_t *)bufs, (int)bufcnt, on_do_write_complete);
+}
+
+static struct st_h2o_uv_socket_t *create_socket(h2o_loop_t *loop)
+{
+    uv_tcp_t *tcp = h2o_mem_alloc(sizeof(*tcp));
+
+    if (uv_tcp_init(loop, tcp) != 0) {
+        free(tcp);
+        return NULL;
+    }
+    return (void *)h2o_uv_socket_create((void *)tcp, (uv_close_cb)free);
+}
+
+int do_export(h2o_socket_t *_sock, h2o_socket_export_t *info)
+{
+    struct st_h2o_uv_socket_t *sock = (void *)_sock;
+    uv_os_fd_t fd;
+
+    if (uv_fileno((uv_handle_t *)sock->uv.stream, &fd) != 0)
+        return -1;
+    /* FIXME: consider how to overcome the epoll(2) problem; man says,
+     * "even after a file descriptor that is part of an epoll set has been closed,
+     * events may be reported for that file descriptor if other file descriptors
+     * referring to the same underlying file description remain open"
+     */
+    if ((info->fd = dup(fd)) == -1)
+        return -1;
+    return 0;
+}
+
+h2o_socket_t *do_import(h2o_loop_t *loop, h2o_socket_export_t *info)
+{
+    struct st_h2o_uv_socket_t *sock = create_socket(loop);
+
+    if (sock == NULL)
+        return NULL;
+    if (uv_tcp_open((uv_tcp_t *)sock->uv.stream, info->fd) != 0) {
+        h2o_socket_close(&sock->super);
+        return NULL;
+    }
+
+    return &sock->super;
+}
+
+h2o_socket_t *h2o_uv_socket_create(uv_stream_t *stream, uv_close_cb close_cb)
+{
+    struct st_h2o_uv_socket_t *sock = h2o_mem_alloc(sizeof(*sock));
+
+    memset(sock, 0, sizeof(*sock));
+    h2o_buffer_init(&sock->super.input, &h2o_socket_buffer_prototype);
+    sock->uv.stream = stream;
+    sock->uv.close_cb = close_cb;
+    stream->data = sock;
+    return &sock->super;
+}
+
+static void on_connect(uv_connect_t *conn, int status)
+{
+    if (status == UV_ECANCELED)
+        return;
+    struct st_h2o_uv_socket_t *sock = H2O_STRUCT_FROM_MEMBER(struct st_h2o_uv_socket_t, _creq, conn);
+    h2o_socket_cb cb = sock->super._cb.write;
+    sock->super._cb.write = NULL;
+    cb(&sock->super, status == 0 ? NULL : h2o_socket_error_conn_fail);
+}
+
+h2o_loop_t *h2o_socket_get_loop(h2o_socket_t *_sock)
+{
+    struct st_h2o_uv_socket_t *sock = (void *)_sock;
+    return sock->uv.stream->loop;
+}
+
+h2o_socket_t *h2o_socket_connect(h2o_loop_t *loop, struct sockaddr *addr, socklen_t addrlen, h2o_socket_cb cb)
+{
+    struct st_h2o_uv_socket_t *sock = create_socket(loop);
+
+    if (sock == NULL)
+        return NULL;
+    if (uv_tcp_connect(&sock->_creq, (void *)sock->uv.stream, addr, on_connect) != 0) {
+        h2o_socket_close(&sock->super);
+        return NULL;
+    }
+    sock->super._cb.write = cb;
+    return &sock->super;
+}
+
+socklen_t h2o_socket_getsockname(h2o_socket_t *_sock, struct sockaddr *sa)
+{
+    struct st_h2o_uv_socket_t *sock = (void *)_sock;
+    int len = sizeof(struct sockaddr_storage);
+    if (uv_tcp_getsockname((void *)sock->uv.stream, sa, &len) != 0)
+        return 0;
+    return (socklen_t)len;
+}
+
+socklen_t get_peername_uncached(h2o_socket_t *_sock, struct sockaddr *sa)
+{
+    struct st_h2o_uv_socket_t *sock = (void *)_sock;
+    int len = sizeof(struct sockaddr_storage);
+    if (uv_tcp_getpeername((void *)sock->uv.stream, sa, &len) != 0)
+        return 0;
+    return (socklen_t)len;
+}
+
+static void on_timeout(uv_timer_t *timer)
+{
+    h2o_timeout_t *timeout = H2O_STRUCT_FROM_MEMBER(h2o_timeout_t, _backend.timer, timer);
+
+    h2o_timeout_run(timer->loop, timeout, h2o_now(timer->loop));
+    if (!h2o_linklist_is_empty(&timeout->_entries))
+        schedule_timer(timeout);
+}
+
+void schedule_timer(h2o_timeout_t *timeout)
+{
+    h2o_timeout_entry_t *entry = H2O_STRUCT_FROM_MEMBER(h2o_timeout_entry_t, _link, timeout->_entries.next);
+    uv_timer_start(&timeout->_backend.timer, on_timeout,
+                   entry->registered_at + timeout->timeout - h2o_now(timeout->_backend.timer.loop), 0);
+}
+
+void h2o_timeout__do_init(h2o_loop_t *loop, h2o_timeout_t *timeout)
+{
+    uv_timer_init(loop, &timeout->_backend.timer);
+}
+
+void h2o_timeout__do_dispose(h2o_loop_t *loop, h2o_timeout_t *timeout)
+{
+    uv_close((uv_handle_t *)&timeout->_backend.timer, NULL);
+}
+
+void h2o_timeout__do_link(h2o_loop_t *loop, h2o_timeout_t *timeout, h2o_timeout_entry_t *entry)
+{
+    /* register the timer if the entry just being added is the only entry */
+    if (timeout->_entries.next == &entry->_link)
+        schedule_timer(timeout);
+}
+
+void h2o_timeout__do_post_callback(h2o_loop_t *loop)
+{
+    /* nothing to do */
+}
diff --git a/debian/vendor-h2o/lib/common/socketpool.c b/debian/vendor-h2o/lib/common/socketpool.c
new file mode 100644
index 0000000..da69933
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/socketpool.c
@@ -0,0 +1,342 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <assert.h>
+#include <errno.h>
+#include <netdb.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <netinet/in.h>
+#include "h2o/hostinfo.h"
+#include "h2o/linklist.h"
+#include "h2o/socketpool.h"
+#include "h2o/string_.h"
+#include "h2o/timeout.h"
+
+struct pool_entry_t {
+    h2o_socket_export_t sockinfo;
+    h2o_linklist_t link;
+    uint64_t added_at;
+};
+
+struct st_h2o_socketpool_connect_request_t {
+    void *data;
+    h2o_socketpool_connect_cb cb;
+    h2o_socketpool_t *pool;
+    h2o_loop_t *loop;
+    h2o_hostinfo_getaddr_req_t *getaddr_req;
+    h2o_socket_t *sock;
+};
+
+static void destroy_detached(struct pool_entry_t *entry)
+{
+    h2o_socket_dispose_export(&entry->sockinfo);
+    free(entry);
+}
+
+static void destroy_attached(struct pool_entry_t *entry)
+{
+    h2o_linklist_unlink(&entry->link);
+    destroy_detached(entry);
+}
+
+static void destroy_expired(h2o_socketpool_t *pool)
+{
+    /* caller should lock the mutex */
+    uint64_t expire_before = h2o_now(pool->_interval_cb.loop) - pool->timeout;
+    while (!h2o_linklist_is_empty(&pool->_shared.sockets)) {
+        struct pool_entry_t *entry = H2O_STRUCT_FROM_MEMBER(struct pool_entry_t, link, pool->_shared.sockets.next);
+        if (entry->added_at > expire_before)
+            break;
+        destroy_attached(entry);
+        __sync_sub_and_fetch(&pool->_shared.count, 1);
+    }
+}
+
+static void on_timeout(h2o_timeout_entry_t *timeout_entry)
+{
+    /* FIXME decrease the frequency of this function being called; the expiration
+     * check can be (should be) performed in the `connect` fuction as well
+     */
+    h2o_socketpool_t *pool = H2O_STRUCT_FROM_MEMBER(h2o_socketpool_t, _interval_cb.entry, timeout_entry);
+
+    if (pthread_mutex_trylock(&pool->_shared.mutex) == 0) {
+        destroy_expired(pool);
+        pthread_mutex_unlock(&pool->_shared.mutex);
+    }
+
+    h2o_timeout_link(pool->_interval_cb.loop, &pool->_interval_cb.timeout, &pool->_interval_cb.entry);
+}
+
+static void common_init(h2o_socketpool_t *pool, h2o_socketpool_type_t type, h2o_iovec_t host, int is_ssl, size_t capacity)
+{
+    memset(pool, 0, sizeof(*pool));
+
+    pool->type = type;
+    pool->peer.host = h2o_strdup(NULL, host.base, host.len);
+    pool->is_ssl = is_ssl;
+    pool->capacity = capacity;
+    pool->timeout = UINT64_MAX;
+
+    pthread_mutex_init(&pool->_shared.mutex, NULL);
+    h2o_linklist_init_anchor(&pool->_shared.sockets);
+}
+
+void h2o_socketpool_init_by_address(h2o_socketpool_t *pool, struct sockaddr *sa, socklen_t salen, int is_ssl, size_t capacity)
+{
+    char host[NI_MAXHOST];
+    size_t host_len;
+
+    assert(salen <= sizeof(pool->peer.sockaddr.bytes));
+
+    if ((host_len = h2o_socket_getnumerichost(sa, salen, host)) == SIZE_MAX) {
+        if (sa->sa_family != AF_UNIX)
+            h2o_fatal("failed to convert a non-unix socket address to a numerical representation");
+        /* use the sockaddr_un::sun_path as the SNI indicator (is that the right thing to do?) */
+        strcpy(host, ((struct sockaddr_un *)sa)->sun_path);
+        host_len = strlen(host);
+    }
+
+    common_init(pool, H2O_SOCKETPOOL_TYPE_SOCKADDR, h2o_iovec_init(host, host_len), is_ssl, capacity);
+    memcpy(&pool->peer.sockaddr.bytes, sa, salen);
+    pool->peer.sockaddr.len = salen;
+}
+
+void h2o_socketpool_init_by_hostport(h2o_socketpool_t *pool, h2o_iovec_t host, uint16_t port, int is_ssl, size_t capacity)
+{
+    struct sockaddr_in sin;
+    memset(&sin, 0, sizeof(sin));
+
+    if (h2o_hostinfo_aton(host, &sin.sin_addr) == 0) {
+        sin.sin_family = AF_INET;
+        sin.sin_port = htons(port);
+        h2o_socketpool_init_by_address(pool, (void *)&sin, sizeof(sin), is_ssl, capacity);
+        return;
+    }
+
+    common_init(pool, H2O_SOCKETPOOL_TYPE_NAMED, host, is_ssl, capacity);
+    pool->peer.named_serv.base = h2o_mem_alloc(sizeof(H2O_UINT16_LONGEST_STR));
+    pool->peer.named_serv.len = sprintf(pool->peer.named_serv.base, "%u", (unsigned)port);
+}
+
+void h2o_socketpool_dispose(h2o_socketpool_t *pool)
+{
+    pthread_mutex_lock(&pool->_shared.mutex);
+    while (!h2o_linklist_is_empty(&pool->_shared.sockets)) {
+        struct pool_entry_t *entry = H2O_STRUCT_FROM_MEMBER(struct pool_entry_t, link, pool->_shared.sockets.next);
+        destroy_attached(entry);
+        __sync_sub_and_fetch(&pool->_shared.count, 1);
+    }
+    pthread_mutex_unlock(&pool->_shared.mutex);
+    pthread_mutex_destroy(&pool->_shared.mutex);
+
+    if (pool->_interval_cb.loop != NULL) {
+        h2o_timeout_unlink(&pool->_interval_cb.entry);
+        h2o_timeout_dispose(pool->_interval_cb.loop, &pool->_interval_cb.timeout);
+    }
+    free(pool->peer.host.base);
+    switch (pool->type) {
+    case H2O_SOCKETPOOL_TYPE_NAMED:
+        free(pool->peer.named_serv.base);
+        break;
+    case H2O_SOCKETPOOL_TYPE_SOCKADDR:
+        break;
+    }
+}
+
+void h2o_socketpool_set_timeout(h2o_socketpool_t *pool, h2o_loop_t *loop, uint64_t msec)
+{
+    pool->timeout = msec;
+
+    pool->_interval_cb.loop = loop;
+    h2o_timeout_init(loop, &pool->_interval_cb.timeout, 1000);
+    pool->_interval_cb.entry.cb = on_timeout;
+
+    h2o_timeout_link(loop, &pool->_interval_cb.timeout, &pool->_interval_cb.entry);
+}
+
+static void call_connect_cb(h2o_socketpool_connect_request_t *req, const char *errstr)
+{
+    h2o_socketpool_connect_cb cb = req->cb;
+    h2o_socket_t *sock = req->sock;
+    void *data = req->data;
+
+    free(req);
+    cb(sock, errstr, data);
+}
+
+static void on_connect(h2o_socket_t *sock, const char *err)
+{
+    h2o_socketpool_connect_request_t *req = sock->data;
+    const char *errstr = NULL;
+
+    assert(req->sock == sock);
+
+    if (err != NULL) {
+        h2o_socket_close(sock);
+        req->sock = NULL;
+        errstr = "connection failed";
+    }
+    call_connect_cb(req, errstr);
+}
+
+static void on_close(void *data)
+{
+    h2o_socketpool_t *pool = data;
+    __sync_sub_and_fetch(&pool->_shared.count, 1);
+}
+
+static void start_connect(h2o_socketpool_connect_request_t *req, struct sockaddr *addr, socklen_t addrlen)
+{
+    req->sock = h2o_socket_connect(req->loop, addr, addrlen, on_connect);
+    if (req->sock == NULL) {
+        __sync_sub_and_fetch(&req->pool->_shared.count, 1);
+        call_connect_cb(req, "failed to connect to host");
+        return;
+    }
+    req->sock->data = req;
+    req->sock->on_close.cb = on_close;
+    req->sock->on_close.data = req->pool;
+}
+
+static void on_getaddr(h2o_hostinfo_getaddr_req_t *getaddr_req, const char *errstr, struct addrinfo *res, void *_req)
+{
+    h2o_socketpool_connect_request_t *req = _req;
+
+    assert(getaddr_req == req->getaddr_req);
+    req->getaddr_req = NULL;
+
+    if (errstr != NULL) {
+        __sync_sub_and_fetch(&req->pool->_shared.count, 1);
+        call_connect_cb(req, errstr);
+        return;
+    }
+
+    struct addrinfo *selected = h2o_hostinfo_select_one(res);
+    start_connect(req, selected->ai_addr, selected->ai_addrlen);
+}
+
+void h2o_socketpool_connect(h2o_socketpool_connect_request_t **_req, h2o_socketpool_t *pool, h2o_loop_t *loop,
+                            h2o_multithread_receiver_t *getaddr_receiver, h2o_socketpool_connect_cb cb, void *data)
+{
+    struct pool_entry_t *entry = NULL;
+
+    if (_req != NULL)
+        *_req = NULL;
+
+    /* fetch an entry and return it */
+    pthread_mutex_lock(&pool->_shared.mutex);
+    destroy_expired(pool);
+    while (1) {
+        if (h2o_linklist_is_empty(&pool->_shared.sockets))
+            break;
+        entry = H2O_STRUCT_FROM_MEMBER(struct pool_entry_t, link, pool->_shared.sockets.next);
+        h2o_linklist_unlink(&entry->link);
+        pthread_mutex_unlock(&pool->_shared.mutex);
+
+        /* test if the connection is still alive */
+        char buf[1];
+        ssize_t rret = recv(entry->sockinfo.fd, buf, 1, MSG_PEEK);
+        if (rret == -1 && (errno == EAGAIN || errno == EWOULDBLOCK)) {
+            /* yes! return it */
+            h2o_socket_t *sock = h2o_socket_import(loop, &entry->sockinfo);
+            free(entry);
+            sock->on_close.cb = on_close;
+            sock->on_close.data = pool;
+            cb(sock, NULL, data);
+            return;
+        }
+
+        /* connection is dead, report, close, and retry */
+        if (rret <= 0) {
+            static long counter = 0;
+            if (__sync_fetch_and_add(&counter, 1) == 0)
+                fprintf(stderr, "[WARN] detected close by upstream before the expected timeout (see issue #679)\n");
+        } else {
+            static long counter = 0;
+            if (__sync_fetch_and_add(&counter, 1) == 0)
+                fprintf(stderr, "[WARN] unexpectedly received data to a pooled socket (see issue #679)\n");
+        }
+        destroy_detached(entry);
+        pthread_mutex_lock(&pool->_shared.mutex);
+    }
+    pthread_mutex_unlock(&pool->_shared.mutex);
+
+    /* FIXME repsect `capacity` */
+    __sync_add_and_fetch(&pool->_shared.count, 1);
+
+    /* prepare request object */
+    h2o_socketpool_connect_request_t *req = h2o_mem_alloc(sizeof(*req));
+    *req = (h2o_socketpool_connect_request_t){data, cb, pool, loop};
+    if (_req != NULL)
+        *_req = req;
+
+    switch (pool->type) {
+    case H2O_SOCKETPOOL_TYPE_NAMED:
+        /* resolve the name, and connect */
+        req->getaddr_req = h2o_hostinfo_getaddr(getaddr_receiver, pool->peer.host, pool->peer.named_serv, AF_UNSPEC, SOCK_STREAM,
+                                                IPPROTO_TCP, AI_ADDRCONFIG | AI_NUMERICSERV, on_getaddr, req);
+        break;
+    case H2O_SOCKETPOOL_TYPE_SOCKADDR:
+        /* connect (using sockaddr_in) */
+        start_connect(req, (void *)&pool->peer.sockaddr.bytes, pool->peer.sockaddr.len);
+        break;
+    }
+}
+
+void h2o_socketpool_cancel_connect(h2o_socketpool_connect_request_t *req)
+{
+    if (req->getaddr_req != NULL) {
+        h2o_hostinfo_getaddr_cancel(req->getaddr_req);
+        req->getaddr_req = NULL;
+    }
+    if (req->sock != NULL)
+        h2o_socket_close(req->sock);
+    free(req);
+}
+
+int h2o_socketpool_return(h2o_socketpool_t *pool, h2o_socket_t *sock)
+{
+    struct pool_entry_t *entry;
+
+    /* reset the on_close callback */
+    assert(sock->on_close.data == pool);
+    sock->on_close.cb = NULL;
+    sock->on_close.data = NULL;
+
+    entry = h2o_mem_alloc(sizeof(*entry));
+    if (h2o_socket_export(sock, &entry->sockinfo) != 0) {
+        free(entry);
+        __sync_sub_and_fetch(&pool->_shared.count, 1);
+        return -1;
+    }
+    memset(&entry->link, 0, sizeof(entry->link));
+    entry->added_at = h2o_now(h2o_socket_get_loop(sock));
+
+    pthread_mutex_lock(&pool->_shared.mutex);
+    destroy_expired(pool);
+    h2o_linklist_insert(&pool->_shared.sockets, &entry->link);
+    pthread_mutex_unlock(&pool->_shared.mutex);
+
+    return 0;
+}
diff --git a/debian/vendor-h2o/lib/common/string.c b/debian/vendor-h2o/lib/common/string.c
new file mode 100644
index 0000000..3c068f3
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/string.c
@@ -0,0 +1,594 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku, Justin Zhu, Fastly, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include "h2o/string_.h"
+
+h2o_iovec_t h2o_strdup(h2o_mem_pool_t *pool, const char *s, size_t slen)
+{
+    h2o_iovec_t ret;
+
+    if (slen == SIZE_MAX)
+        slen = strlen(s);
+
+    if (pool != NULL) {
+        ret.base = h2o_mem_alloc_pool(pool, slen + 1);
+    } else {
+        ret.base = h2o_mem_alloc(slen + 1);
+    }
+    h2o_memcpy(ret.base, s, slen);
+    ret.base[slen] = '\0';
+    ret.len = slen;
+    return ret;
+}
+
+h2o_iovec_t h2o_strdup_shared(h2o_mem_pool_t *pool, const char *s, size_t slen)
+{
+    h2o_iovec_t ret;
+
+    if (slen == SIZE_MAX)
+        slen = strlen(s);
+
+    ret.base = h2o_mem_alloc_shared(pool, slen + 1, NULL);
+    memcpy(ret.base, s, slen);
+    ret.base[slen] = '\0';
+    ret.len = slen;
+    return ret;
+}
+
+h2o_iovec_t h2o_strdup_slashed(h2o_mem_pool_t *pool, const char *src, size_t len)
+{
+    h2o_iovec_t ret;
+
+    ret.len = len != SIZE_MAX ? len : strlen(src);
+    ret.base = pool != NULL ? h2o_mem_alloc_pool(pool, ret.len + 2) : h2o_mem_alloc(ret.len + 2);
+    memcpy(ret.base, src, ret.len);
+    if (ret.len != 0 && ret.base[ret.len - 1] != '/')
+        ret.base[ret.len++] = '/';
+    ret.base[ret.len] = '\0';
+
+    return ret;
+}
+
+int h2o__lcstris_core(const char *target, const char *test, size_t test_len)
+{
+    for (; test_len != 0; --test_len)
+        if (h2o_tolower(*target++) != *test++)
+            return 0;
+    return 1;
+}
+
+size_t h2o_strtosize(const char *s, size_t len)
+{
+    uint64_t v = 0, m = 1;
+    const char *p = s + len;
+
+    if (len == 0)
+        goto Error;
+
+    while (1) {
+        int ch = *--p;
+        if (!('0' <= ch && ch <= '9'))
+            goto Error;
+        v += (ch - '0') * m;
+        if (p == s)
+            break;
+        m *= 10;
+        /* do not even try to overflow */
+        if (m == 10000000000000000000ULL)
+            goto Error;
+    }
+
+    if (v >= SIZE_MAX)
+        goto Error;
+    return v;
+
+Error:
+    return SIZE_MAX;
+}
+
+size_t h2o_strtosizefwd(char **s, size_t len)
+{
+    uint64_t v, c;
+    char *p = *s, *p_end = *s + len;
+
+    if (len == 0)
+        goto Error;
+
+    int ch = *p++;
+    if (!('0' <= ch && ch <= '9'))
+        goto Error;
+    v = ch - '0';
+    c = 1;
+
+    while (1) {
+        ch = *p;
+        if (!('0' <= ch && ch <= '9'))
+            break;
+        v *= 10;
+        v += ch - '0';
+        p++;
+        c++;
+        if (p == p_end)
+            break;
+        /* similar as above, do not even try to overflow */
+        if (c == 20)
+            goto Error;
+    }
+
+    if (v >= SIZE_MAX)
+        goto Error;
+    *s = p;
+    return v;
+
+Error:
+    return SIZE_MAX;
+}
+
+static uint32_t decode_base64url_quad(const char *src)
+{
+    const char *src_end = src + 4;
+    uint32_t decoded = 0;
+
+    while (1) {
+        if ('A' <= *src && *src <= 'Z') {
+            decoded |= *src - 'A';
+        } else if ('a' <= *src && *src <= 'z') {
+            decoded |= *src - 'a' + 26;
+        } else if ('0' <= *src && *src <= '9') {
+            decoded |= *src - '0' + 52;
+        } else if (*src == '-') {
+            decoded |= 62;
+        } else if (*src == '_') {
+            decoded |= 63;
+#if 1 /* curl uses normal base64 */
+        } else if (*src == '+') {
+            decoded |= 62;
+        } else if (*src == '/') {
+            decoded |= 63;
+#endif
+        } else {
+            return UINT32_MAX;
+        }
+        if (++src == src_end)
+            break;
+        decoded <<= 6;
+    }
+
+    return decoded;
+}
+
+h2o_iovec_t h2o_decode_base64url(h2o_mem_pool_t *pool, const char *src, size_t len)
+{
+    h2o_iovec_t decoded;
+    uint32_t t;
+    uint8_t *dst;
+    char remaining_input[4];
+
+    decoded.len = len * 3 / 4;
+    decoded.base = pool != NULL ? h2o_mem_alloc_pool(pool, decoded.len + 1) : h2o_mem_alloc(decoded.len + 1);
+    dst = (uint8_t *)decoded.base;
+
+    while (len >= 4) {
+        if ((t = decode_base64url_quad(src)) == UINT32_MAX)
+            goto Error;
+        *dst++ = t >> 16;
+        *dst++ = t >> 8;
+        *dst++ = t;
+        src += 4;
+        len -= 4;
+    }
+    switch (len) {
+    case 0:
+        break;
+    case 1:
+        goto Error;
+    case 2:
+        remaining_input[0] = *src++;
+        remaining_input[1] = *src++;
+        remaining_input[2] = 'A';
+        remaining_input[3] = 'A';
+        if ((t = decode_base64url_quad(remaining_input)) == UINT32_MAX)
+            goto Error;
+        *dst++ = t >> 16;
+        break;
+    case 3:
+        remaining_input[0] = *src++;
+        remaining_input[1] = *src++;
+        remaining_input[2] = *src++;
+        remaining_input[3] = 'A';
+        if ((t = decode_base64url_quad(remaining_input)) == UINT32_MAX)
+            goto Error;
+        *dst++ = t >> 16;
+        *dst++ = t >> 8;
+        break;
+    }
+
+    assert((char *)dst - decoded.base == decoded.len);
+    decoded.base[decoded.len] = '\0';
+
+    return decoded;
+
+Error:
+    if (pool == NULL)
+        free(decoded.base);
+    return h2o_iovec_init(NULL, 0);
+}
+
+size_t h2o_base64_encode(char *_dst, const void *_src, size_t len, int url_encoded)
+{
+    static const char *MAP = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+                             "abcdefghijklmnopqrstuvwxyz"
+                             "0123456789+/";
+    static const char *MAP_URL_ENCODED = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+                                         "abcdefghijklmnopqrstuvwxyz"
+                                         "0123456789-_";
+
+    char *dst = _dst;
+    const uint8_t *src = _src;
+    const char *map = url_encoded ? MAP_URL_ENCODED : MAP;
+    uint32_t quad;
+
+    for (; len >= 3; src += 3, len -= 3) {
+        quad = ((uint32_t)src[0] << 16) | ((uint32_t)src[1] << 8) | src[2];
+        *dst++ = map[quad >> 18];
+        *dst++ = map[(quad >> 12) & 63];
+        *dst++ = map[(quad >> 6) & 63];
+        *dst++ = map[quad & 63];
+    }
+    if (len != 0) {
+        quad = (uint32_t)src[0] << 16;
+        *dst++ = map[quad >> 18];
+        if (len == 2) {
+            quad |= (uint32_t)src[1] << 8;
+            *dst++ = map[(quad >> 12) & 63];
+            *dst++ = map[(quad >> 6) & 63];
+            if (!url_encoded)
+                *dst++ = '=';
+        } else {
+            *dst++ = map[(quad >> 12) & 63];
+            if (!url_encoded) {
+                *dst++ = '=';
+                *dst++ = '=';
+            }
+        }
+    }
+
+    *dst = '\0';
+    return dst - _dst;
+}
+
+static int decode_hex(int ch)
+{
+    if ('0' <= ch && ch <= '9')
+        return ch - '0';
+    if ('A' <= ch && ch <= 'F')
+        return ch - 'A' + 0xa;
+    if ('a' <= ch && ch <= 'f')
+        return ch - 'a' + 0xa;
+    return -1;
+}
+
+int h2o_hex_decode(void *_dst, const char *src, size_t src_len)
+{
+    unsigned char *dst = _dst;
+
+    if (src_len % 2 != 0)
+        return -1;
+    for (; src_len != 0; src_len -= 2) {
+        int hi, lo;
+        if ((hi = decode_hex(*src++)) == -1 || (lo = decode_hex(*src++)) == -1)
+            return -1;
+        *dst++ = (hi << 4) | lo;
+    }
+    return 0;
+}
+
+void h2o_hex_encode(char *dst, const void *_src, size_t src_len)
+{
+    const unsigned char *src = _src, *src_end = src + src_len;
+    for (; src != src_end; ++src) {
+        *dst++ = "0123456789abcdef"[*src >> 4];
+        *dst++ = "0123456789abcdef"[*src & 0xf];
+    }
+    *dst = '\0';
+}
+
+h2o_iovec_t h2o_uri_escape(h2o_mem_pool_t *pool, const char *s, size_t l, const char *preserve_chars)
+{
+    h2o_iovec_t encoded;
+    size_t i, capacity = l * 3 + 1;
+
+    encoded.base = pool != NULL ? h2o_mem_alloc_pool(pool, capacity) : h2o_mem_alloc(capacity);
+    encoded.len = 0;
+
+    /* RFC 3986:
+        path-noscheme = segment-nz-nc *( "/" segment )
+        segment-nz-nc = 1*( unreserved / pct-encoded / sub-delims / "@" )
+        unreserved  = ALPHA / DIGIT / "-" / "." / "_" / "~"
+        sub-delims    = "!" / "$" / "&" / "'" / "(" / ")"
+                     / "*" / "+" / "," / ";" / "="
+    */
+    for (i = 0; i != l; ++i) {
+        int ch = s[i];
+        if (('A' <= ch && ch <= 'Z') || ('a' <= ch && ch <= 'z') || ('0' <= ch && ch <= '9') || ch == '-' || ch == '.' ||
+            ch == '_' || ch == '~' || ch == '!' || ch == '$' || ch == '&' || ch == '\'' || ch == '(' || ch == ')' || ch == '*' ||
+            ch == '+' || ch == ',' || ch == ';' || ch == '=' ||
+            (ch != '\0' && preserve_chars != NULL && strchr(preserve_chars, ch) != NULL)) {
+            encoded.base[encoded.len++] = ch;
+        } else {
+            encoded.base[encoded.len++] = '%';
+            encoded.base[encoded.len++] = "0123456789ABCDEF"[(ch >> 4) & 0xf];
+            encoded.base[encoded.len++] = "0123456789ABCDEF"[ch & 0xf];
+        }
+    }
+    encoded.base[encoded.len] = '\0';
+
+    return encoded;
+}
+
+h2o_iovec_t h2o_get_filext(const char *path, size_t len)
+{
+    const char *end = path + len, *p = end;
+
+    while (--p != path) {
+        if (*p == '.') {
+            return h2o_iovec_init(p + 1, end - (p + 1));
+        } else if (*p == '/') {
+            break;
+        }
+    }
+    return h2o_iovec_init(NULL, 0);
+}
+
+static int is_ws(int ch)
+{
+    return ch == ' ' || ch == '\t' || ch == '\r' || ch == '\n';
+}
+
+h2o_iovec_t h2o_str_stripws(const char *s, size_t len)
+{
+    const char *end = s + len;
+
+    while (s != end) {
+        if (!is_ws(*s))
+            break;
+        ++s;
+    }
+    while (s != end) {
+        if (!is_ws(end[-1]))
+            break;
+        --end;
+    }
+    return h2o_iovec_init(s, end - s);
+}
+
+size_t h2o_strstr(const char *haysack, size_t haysack_len, const char *needle, size_t needle_len)
+{
+    /* TODO optimize */
+    if (haysack_len >= needle_len) {
+        size_t off, max = haysack_len - needle_len + 1;
+        if (needle_len == 0)
+            return 0;
+        for (off = 0; off != max; ++off)
+            if (haysack[off] == needle[0] && memcmp(haysack + off + 1, needle + 1, needle_len - 1) == 0)
+                return off;
+    }
+    return SIZE_MAX;
+}
+
+/* note: returns a zero-width match as well */
+const char *h2o_next_token(h2o_iovec_t *iter, int separator, size_t *element_len, h2o_iovec_t *value)
+{
+    const char *cur = iter->base, *end = iter->base + iter->len, *token_start, *token_end;
+
+    /* find start */
+    for (;; ++cur) {
+        if (cur == end)
+            return NULL;
+        if (!(*cur == ' ' || *cur == '\t'))
+            break;
+    }
+    token_start = cur;
+    token_end = cur;
+
+    /* find last */
+    for (;; ++cur) {
+        if (cur == end)
+            break;
+        if (*cur == separator) {
+            ++cur;
+            break;
+        }
+        if (*cur == ',') {
+            if (token_start == cur) {
+                ++cur;
+                token_end = cur;
+            }
+            break;
+        }
+        if (value != NULL && *cur == '=') {
+            ++cur;
+            goto FindValue;
+        }
+        if (!(*cur == ' ' || *cur == '\t'))
+            token_end = cur + 1;
+    }
+
+    /* found */
+    *iter = h2o_iovec_init(cur, end - cur);
+    *element_len = token_end - token_start;
+    if (value != NULL)
+        *value = (h2o_iovec_t){NULL};
+    return token_start;
+
+FindValue:
+    *iter = h2o_iovec_init(cur, end - cur);
+    *element_len = token_end - token_start;
+    if ((value->base = (char *)h2o_next_token(iter, separator, &value->len, NULL)) == NULL) {
+        *value = (h2o_iovec_t){"", 0};
+    } else if (h2o_memis(value->base, value->len, H2O_STRLIT(","))) {
+        *value = (h2o_iovec_t){"", 0};
+        iter->base -= 1;
+        iter->len += 1;
+    }
+    return token_start;
+}
+
+int h2o_contains_token(const char *haysack, size_t haysack_len, const char *needle, size_t needle_len, int separator)
+{
+    h2o_iovec_t iter = h2o_iovec_init(haysack, haysack_len);
+    const char *token = NULL;
+    size_t token_len = 0;
+
+    while ((token = h2o_next_token(&iter, separator, &token_len, NULL)) != NULL) {
+        if (h2o_lcstris(token, token_len, needle, needle_len)) {
+            return 1;
+        }
+    }
+    return 0;
+}
+
+h2o_iovec_t h2o_htmlescape(h2o_mem_pool_t *pool, const char *src, size_t len)
+{
+    const char *s, *end = src + len;
+    size_t add_size = 0;
+
+#define ENTITY_MAP()                                                                                                               \
+    ENTITY('"', "&quot;");                                                                                                         \
+    ENTITY('&', "&amp;");                                                                                                          \
+    ENTITY('\'', "&#39;");                                                                                                         \
+    ENTITY('<', "&lt;");                                                                                                           \
+    ENTITY('>', "&gt;");
+
+    for (s = src; s != end; ++s) {
+        if ((unsigned)(unsigned char)*s - '"' <= '>' - '"') {
+            switch (*s) {
+#define ENTITY(code, quoted)                                                                                                       \
+    case code:                                                                                                                     \
+        add_size += sizeof(quoted) - 2;                                                                                            \
+        break
+                ENTITY_MAP()
+#undef ENTITY
+            }
+        }
+    }
+
+    /* escape and return the result if necessary */
+    if (add_size != 0) {
+        /* allocate buffer and fill in the chars that are known not to require escaping */
+        h2o_iovec_t escaped = {h2o_mem_alloc_pool(pool, len + add_size + 1), 0};
+        /* fill-in the rest */
+        for (s = src; s != end; ++s) {
+            switch (*s) {
+#define ENTITY(code, quoted)                                                                                                       \
+    case code:                                                                                                                     \
+        memcpy(escaped.base + escaped.len, quoted, sizeof(quoted) - 1);                                                            \
+        escaped.len += sizeof(quoted) - 1;                                                                                         \
+        break
+                ENTITY_MAP()
+#undef ENTITY
+            default:
+                escaped.base[escaped.len++] = *s;
+                break;
+            }
+        }
+        assert(escaped.len == len + add_size);
+        escaped.base[escaped.len] = '\0';
+
+        return escaped;
+    }
+
+#undef ENTITY_MAP
+
+    /* no need not escape; return the original */
+    return h2o_iovec_init(src, len);
+}
+
+h2o_iovec_t h2o_concat_list(h2o_mem_pool_t *pool, h2o_iovec_t *list, size_t count)
+{
+    h2o_iovec_t ret = {NULL, 0};
+    size_t i;
+
+    /* calc the length */
+    for (i = 0; i != count; ++i) {
+        ret.len += list[i].len;
+    }
+
+    /* allocate memory */
+    if (pool != NULL)
+        ret.base = h2o_mem_alloc_pool(pool, ret.len + 1);
+    else
+        ret.base = h2o_mem_alloc(ret.len + 1);
+
+    /* concatenate */
+    ret.len = 0;
+    for (i = 0; i != count; ++i) {
+        h2o_memcpy(ret.base + ret.len, list[i].base, list[i].len);
+        ret.len += list[i].len;
+    }
+    ret.base[ret.len] = '\0';
+
+    return ret;
+}
+
+int h2o_str_at_position(char *buf, const char *src, size_t src_len, int lineno, int column)
+{
+    const char *src_end = src + src_len;
+    int i;
+
+    /* find the line */
+    if (lineno <= 0 || column <= 0)
+        return -1;
+    for (--lineno; lineno != 0; --lineno) {
+        do {
+            if (src == src_end)
+                return -1;
+        } while (*src++ != '\n');
+    }
+
+    /* adjust the starting column */
+    while (column > 40) {
+        if (src != src_end)
+            ++src;
+        --column;
+    }
+
+    /* emit */
+    for (i = 1; i <= 76; ++i) {
+        if (src == src_end || *src == '\n')
+            break;
+        *buf++ = *src++;
+    }
+    if (i < column)
+        column = i;
+    *buf++ = '\n';
+    for (i = 1; i < column; ++i)
+        *buf++ = ' ';
+    *buf++ = '^';
+    *buf++ = '\n';
+    *buf = '\0';
+    return 0;
+}
diff --git a/debian/vendor-h2o/lib/common/time.c b/debian/vendor-h2o/lib/common/time.c
new file mode 100644
index 0000000..368143e
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/time.c
@@ -0,0 +1,175 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+#include "h2o/time_.h"
+
+static char *emit_wday(char *dst, int wday)
+{
+    memcpy(dst, ("SunMonTueWedThuFriSat") + wday * 3, 3);
+    return dst + 3;
+}
+
+static char *emit_mon(char *dst, int mon)
+{
+    memcpy(dst, ("JanFebMarAprMayJunJulAugSepOctNovDec") + mon * 3, 3);
+    return dst + 3;
+}
+
+static char *emit_digits(char *dst, int n, size_t cnt)
+{
+    char *p = dst + cnt;
+
+    /* emit digits from back */
+    do {
+        *--p = '0' + n % 10;
+        n /= 10;
+    } while (p != dst);
+
+    return dst + cnt;
+}
+
+void h2o_time2str_rfc1123(char *buf, struct tm *gmt)
+{
+    char *p = buf;
+
+    /* format: Fri, 19 Sep 2014 05:24:04 GMT */
+    p = emit_wday(p, gmt->tm_wday);
+    *p++ = ',';
+    *p++ = ' ';
+    p = emit_digits(p, gmt->tm_mday, 2);
+    *p++ = ' ';
+    p = emit_mon(p, gmt->tm_mon);
+    *p++ = ' ';
+    p = emit_digits(p, gmt->tm_year + 1900, 4);
+    *p++ = ' ';
+    p = emit_digits(p, gmt->tm_hour, 2);
+    *p++ = ':';
+    p = emit_digits(p, gmt->tm_min, 2);
+    *p++ = ':';
+    p = emit_digits(p, gmt->tm_sec, 2);
+    memcpy(p, " GMT", 4);
+    p += 4;
+    *p = '\0';
+
+    assert(p - buf == H2O_TIMESTR_RFC1123_LEN);
+}
+
+static int fetch_digits(const char *s, size_t n)
+{
+    int value = 0;
+    for (; n != 0; ++s, --n) {
+        if (!('0' <= *s && *s <= '9'))
+            return -1;
+        value = value * 10 + *s - '0';
+    }
+    return value;
+}
+
+int h2o_time_parse_rfc1123(const char *s, size_t len, struct tm *tm)
+{
+    if (len != H2O_TIMESTR_RFC1123_LEN)
+        return -1;
+
+/*           1         2
+ * 01234567890123456789012345678
+ * Fri, 19 Sep 2014 05:24:04 GMT
+ */
+
+#define FETCH(dst, pos, n)                                                                                                         \
+    if ((dst = fetch_digits(s + pos, n)) == -1)                                                                                    \
+        return -1;
+    FETCH(tm->tm_year, 12, 4);
+    tm->tm_year -= 1900;
+    /* month is parsed afterwards */
+    FETCH(tm->tm_mday, 5, 2);
+    FETCH(tm->tm_hour, 17, 2);
+    FETCH(tm->tm_min, 20, 2);
+    FETCH(tm->tm_sec, 23, 2);
+#undef FETCH
+
+#define PACK3(a, b, c) (((a)&0xff) << 16 | ((b)&0xff) << 8 | ((c)&0xff))
+#define MAP(c1, c2, c3, value)                                                                                                     \
+    case PACK3(c1, c2, c3):                                                                                                        \
+        tm->tm_mon = value;                                                                                                        \
+        break
+    switch (PACK3(s[8], s[9], s[10])) {
+        MAP('J', 'a', 'n', 0);
+        MAP('F', 'e', 'b', 1);
+        MAP('M', 'a', 'r', 2);
+        MAP('A', 'p', 'r', 3);
+        MAP('M', 'a', 'y', 4);
+        MAP('J', 'u', 'n', 5);
+        MAP('J', 'u', 'l', 6);
+        MAP('A', 'u', 'g', 7);
+        MAP('S', 'e', 'p', 8);
+        MAP('O', 'c', 't', 9);
+        MAP('N', 'o', 'v', 10);
+        MAP('D', 'e', 'c', 11);
+    default:
+        return -1;
+    }
+#undef MAP
+#undef PACK3
+
+    return 0;
+}
+
+static int calc_gmt_offset(time_t t, struct tm *local)
+{
+    struct tm gmt;
+    int delta;
+
+    gmtime_r(&t, &gmt);
+    delta = (local->tm_hour - gmt.tm_hour) * 60 + (local->tm_min - gmt.tm_min);
+
+    if (local->tm_yday != gmt.tm_yday) {
+        int day_offset;
+        if (local->tm_year == gmt.tm_year)
+            day_offset = local->tm_yday - gmt.tm_yday;
+        else
+            day_offset = local->tm_year - gmt.tm_year;
+        delta += day_offset * 24 * 60;
+    }
+    return delta;
+}
+
+void h2o_time2str_log(char *buf, time_t time)
+{
+    struct tm localt;
+    localtime_r(&time, &localt);
+    int gmt_off = calc_gmt_offset(time, &localt);
+    int gmt_sign;
+
+    if (gmt_off >= 0) {
+        gmt_sign = '+';
+    } else {
+        gmt_off = -gmt_off;
+        gmt_sign = '-';
+    }
+
+    int len = sprintf(buf, "%02d/%s/%d:%02d:%02d:%02d %c%02d%02d", localt.tm_mday,
+                      ("Jan\0Feb\0Mar\0Apr\0May\0Jun\0Jul\0Aug\0Sep\0Oct\0Nov\0Dec\0") + localt.tm_mon * 4, localt.tm_year + 1900,
+                      localt.tm_hour, localt.tm_min, localt.tm_sec, gmt_sign, gmt_off / 60, gmt_off % 60);
+    assert(len == H2O_TIMESTR_LOG_LEN);
+}
diff --git a/debian/vendor-h2o/lib/common/timeout.c b/debian/vendor-h2o/lib/common/timeout.c
new file mode 100644
index 0000000..c50be0a
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/timeout.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o/timeout.h"
+
+void h2o_timeout_run(h2o_loop_t *loop, h2o_timeout_t *timeout, uint64_t now)
+{
+    uint64_t max_registered_at = now - timeout->timeout;
+
+    while (!h2o_linklist_is_empty(&timeout->_entries)) {
+        h2o_timeout_entry_t *entry = H2O_STRUCT_FROM_MEMBER(h2o_timeout_entry_t, _link, timeout->_entries.next);
+        if (entry->registered_at > max_registered_at) {
+            break;
+        }
+        h2o_linklist_unlink(&entry->_link);
+        entry->registered_at = 0;
+        entry->cb(entry);
+        h2o_timeout__do_post_callback(loop);
+    }
+}
+
+uint64_t h2o_timeout_get_wake_at(h2o_linklist_t *timeouts)
+{
+    h2o_linklist_t *node;
+    uint64_t wake_at = UINT64_MAX;
+
+    /* change wake_at to the minimum value of the timeouts */
+    for (node = timeouts->next; node != timeouts; node = node->next) {
+        h2o_timeout_t *timeout = H2O_STRUCT_FROM_MEMBER(h2o_timeout_t, _link, node);
+        if (!h2o_linklist_is_empty(&timeout->_entries)) {
+            h2o_timeout_entry_t *entry = H2O_STRUCT_FROM_MEMBER(h2o_timeout_entry_t, _link, timeout->_entries.next);
+            uint64_t entry_wake_at = entry->registered_at + timeout->timeout;
+            if (entry_wake_at < wake_at)
+                wake_at = entry_wake_at;
+        }
+    }
+
+    return wake_at;
+}
+
+void h2o_timeout_init(h2o_loop_t *loop, h2o_timeout_t *timeout, uint64_t millis)
+{
+    memset(timeout, 0, sizeof(*timeout));
+    timeout->timeout = millis;
+    h2o_linklist_init_anchor(&timeout->_entries);
+
+    h2o_timeout__do_init(loop, timeout);
+}
+
+void h2o_timeout_dispose(h2o_loop_t *loop, h2o_timeout_t *timeout)
+{
+    assert(h2o_linklist_is_empty(&timeout->_entries));
+    h2o_timeout__do_dispose(loop, timeout);
+}
+
+void h2o_timeout_link(h2o_loop_t *loop, h2o_timeout_t *timeout, h2o_timeout_entry_t *entry)
+{
+    /* insert at tail, so that the entries are sorted in ascending order */
+    h2o_linklist_insert(&timeout->_entries, &entry->_link);
+    /* set data */
+    entry->registered_at = h2o_now(loop);
+
+    h2o_timeout__do_link(loop, timeout, entry);
+}
+
+void h2o_timeout_unlink(h2o_timeout_entry_t *entry)
+{
+    if (h2o_linklist_is_linked(&entry->_link)) {
+        h2o_linklist_unlink(&entry->_link);
+        entry->registered_at = 0;
+    }
+}
diff --git a/debian/vendor-h2o/lib/common/url.c b/debian/vendor-h2o/lib/common/url.c
new file mode 100644
index 0000000..d65d18f
--- /dev/null
+++ b/debian/vendor-h2o/lib/common/url.c
@@ -0,0 +1,409 @@
+/*
+ * Copyright (c) 2014,2015 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include "h2o/memory.h"
+#include "h2o/string_.h"
+#include "h2o/url.h"
+
+const h2o_url_scheme_t H2O_URL_SCHEME_HTTP = {{H2O_STRLIT("http")}, 80};
+const h2o_url_scheme_t H2O_URL_SCHEME_HTTPS = {{H2O_STRLIT("https")}, 443};
+
+static int decode_hex(int ch)
+{
+    if ('0' <= ch && ch <= '9')
+        return ch - '0';
+    if ('A' <= ch && ch <= 'F')
+        return ch - 'A' + 0xa;
+    if ('a' <= ch && ch <= 'f')
+        return ch - 'a' + 0xa;
+    return -1;
+}
+
+static size_t handle_special_paths(const char *path, size_t off, size_t last_slash)
+{
+    size_t orig_off = off, part_size = off - last_slash;
+
+    if (part_size == 2 && path[off - 1] == '.') {
+        --off;
+    } else if (part_size == 3 && path[off - 2] == '.' && path[off - 1] == '.') {
+        off -= 2;
+        if (off > 1) {
+            for (--off; path[off - 1] != '/'; --off)
+                ;
+        }
+    }
+    return orig_off - off;
+}
+
+/* Perform path normalization and URL decoding in one pass.
+ * See h2o_req_t for the purpose of @norm_indexes. */
+static h2o_iovec_t rebuild_path(h2o_mem_pool_t *pool, const char *src, size_t src_len, size_t *query_at, size_t **norm_indexes)
+{
+    char *dst;
+    size_t src_off = 0, dst_off = 0, last_slash, rewind;
+
+    { /* locate '?', and set len to the end of input path */
+        const char *q = memchr(src, '?', src_len);
+        if (q != NULL) {
+            src_len = *query_at = q - src;
+        } else {
+            *query_at = SIZE_MAX;
+        }
+    }
+
+    /* dst can be 1 byte more than src if src is missing the prefixing '/' */
+    dst = h2o_mem_alloc_pool(pool, src_len + 1);
+    *norm_indexes = h2o_mem_alloc_pool(pool, (src_len + 1) * sizeof(*norm_indexes[0]));
+
+    if (src[0] == '/')
+        src_off++;
+    last_slash = dst_off;
+    dst[dst_off] = '/';
+    (*norm_indexes)[dst_off] = src_off;
+    dst_off++;
+
+    /* decode %xx */
+    while (src_off < src_len) {
+        int hi, lo;
+        char decoded;
+
+        if (src[src_off] == '%' && (src_off + 2 < src_len) && (hi = decode_hex(src[src_off + 1])) != -1 &&
+            (lo = decode_hex(src[src_off + 2])) != -1) {
+            decoded = (hi << 4) | lo;
+            src_off += 3;
+        } else {
+            decoded = src[src_off++];
+        }
+        if (decoded == '/') {
+            rewind = handle_special_paths(dst, dst_off, last_slash);
+            if (rewind > 0) {
+                dst_off -= rewind;
+                last_slash = dst_off - 1;
+                continue;
+            }
+            last_slash = dst_off;
+        }
+        dst[dst_off] = decoded;
+        (*norm_indexes)[dst_off] = src_off;
+        dst_off++;
+    }
+    rewind = handle_special_paths(dst, dst_off, last_slash);
+    dst_off -= rewind;
+
+    return h2o_iovec_init(dst, dst_off);
+}
+
+h2o_iovec_t h2o_url_normalize_path(h2o_mem_pool_t *pool, const char *path, size_t len, size_t *query_at, size_t **norm_indexes)
+{
+    const char *p = path, *end = path + len;
+    h2o_iovec_t ret;
+
+    *query_at = SIZE_MAX;
+    *norm_indexes = NULL;
+
+    if (len == 0) {
+        ret = h2o_iovec_init("/", 1);
+        return ret;
+    }
+
+    if (path[0] != '/')
+        goto Rewrite;
+
+    for (; p + 1 < end; ++p) {
+        if ((p[0] == '/' && p[1] == '.') || p[0] == '%') {
+            /* detect false positives as well */
+            goto Rewrite;
+        } else if (p[0] == '?') {
+            *query_at = p - path;
+            goto Return;
+        }
+    }
+    for (; p < end; ++p) {
+        if (p[0] == '?') {
+            *query_at = p - path;
+            goto Return;
+        }
+    }
+
+Return:
+    ret.base = (char *)path;
+    ret.len = p - path;
+    return ret;
+
+Rewrite:
+    ret = rebuild_path(pool, path, len, query_at, norm_indexes);
+    if (ret.len == 0)
+        goto RewriteError;
+    if (ret.base[0] != '/')
+        goto RewriteError;
+    if (h2o_strstr(ret.base, ret.len, H2O_STRLIT("/../")) != SIZE_MAX)
+        goto RewriteError;
+    if (ret.len >= 3 && memcmp(ret.base + ret.len - 3, "/..", 3) == 0)
+        goto RewriteError;
+    return ret;
+RewriteError:
+    fprintf(stderr, "failed to normalize path: `%.*s` => `%.*s`\n", (int)len, path, (int)ret.len, ret.base);
+    ret = h2o_iovec_init("/", 1);
+    return ret;
+}
+
+static const char *parse_scheme(const char *s, const char *end, const h2o_url_scheme_t **scheme)
+{
+    if (end - s >= 5 && memcmp(s, "http:", 5) == 0) {
+        *scheme = &H2O_URL_SCHEME_HTTP;
+        return s + 5;
+    } else if (end - s >= 6 && memcmp(s, "https:", 6) == 0) {
+        *scheme = &H2O_URL_SCHEME_HTTPS;
+        return s + 6;
+    }
+    return NULL;
+}
+
+const char *h2o_url_parse_hostport(const char *s, size_t len, h2o_iovec_t *host, uint16_t *port)
+{
+    const char *token_start = s, *token_end, *end = s + len;
+
+    *port = 65535;
+
+    if (token_start == end)
+        return NULL;
+
+    if (*token_start == '[') {
+        /* is IPv6 address */
+        ++token_start;
+        if ((token_end = memchr(token_start, ']', end - token_start)) == NULL)
+            return NULL;
+        *host = h2o_iovec_init(token_start, token_end - token_start);
+        token_start = token_end + 1;
+    } else {
+        for (token_end = token_start; !(token_end == end || *token_end == '/' || *token_end == ':'); ++token_end)
+            ;
+        *host = h2o_iovec_init(token_start, token_end - token_start);
+        token_start = token_end;
+    }
+
+    /* disallow zero-length host */
+    if (host->len == 0)
+        return NULL;
+
+    /* parse port */
+    if (token_start != end && *token_start == ':') {
+        size_t p;
+        ++token_start;
+        if ((token_end = memchr(token_start, '/', end - token_start)) == NULL)
+            token_end = end;
+        if ((p = h2o_strtosize(token_start, token_end - token_start)) >= 65535)
+            return NULL;
+        *port = (uint16_t)p;
+        token_start = token_end;
+    }
+
+    return token_start;
+}
+
+static int parse_authority_and_path(const char *src, const char *url_end, h2o_url_t *parsed)
+{
+    const char *p = h2o_url_parse_hostport(src, url_end - src, &parsed->host, &parsed->_port);
+    if (p == NULL)
+        return -1;
+    parsed->authority = h2o_iovec_init(src, p - src);
+    if (p == url_end) {
+        parsed->path = h2o_iovec_init(H2O_STRLIT("/"));
+    } else {
+        if (*p != '/')
+            return -1;
+        parsed->path = h2o_iovec_init(p, url_end - p);
+    }
+    return 0;
+}
+
+int h2o_url_parse(const char *url, size_t url_len, h2o_url_t *parsed)
+{
+    const char *url_end, *p;
+
+    if (url_len == SIZE_MAX)
+        url_len = strlen(url);
+    url_end = url + url_len;
+
+    /* check and skip scheme */
+    if ((p = parse_scheme(url, url_end, &parsed->scheme)) == NULL)
+        return -1;
+
+    /* skip "//" */
+    if (!(url_end - p >= 2 && p[0] == '/' && p[1] == '/'))
+        return -1;
+    p += 2;
+
+    return parse_authority_and_path(p, url_end, parsed);
+}
+
+int h2o_url_parse_relative(const char *url, size_t url_len, h2o_url_t *parsed)
+{
+    const char *url_end, *p;
+
+    if (url_len == SIZE_MAX)
+        url_len = strlen(url);
+    url_end = url + url_len;
+
+    /* obtain scheme and port number */
+    if ((p = parse_scheme(url, url_end, &parsed->scheme)) == NULL) {
+        parsed->scheme = NULL;
+        p = url;
+    }
+
+    /* handle "//" */
+    if (url_end - p >= 2 && p[0] == '/' && p[1] == '/')
+        return parse_authority_and_path(p + 2, url_end, parsed);
+
+    /* reset authority, host, port, and set path */
+    parsed->authority = (h2o_iovec_t){NULL};
+    parsed->host = (h2o_iovec_t){NULL};
+    parsed->_port = 65535;
+    parsed->path = h2o_iovec_init(p, url_end - p);
+
+    return 0;
+}
+
+h2o_iovec_t h2o_url_resolve(h2o_mem_pool_t *pool, const h2o_url_t *base, const h2o_url_t *relative, h2o_url_t *dest)
+{
+    h2o_iovec_t base_path, relative_path, ret;
+
+    assert(base->path.len != 0);
+    assert(base->path.base[0] == '/');
+
+    if (relative == NULL) {
+        /* build URL using base copied to dest */
+        *dest = *base;
+        base_path = base->path;
+        relative_path = h2o_iovec_init(NULL, 0);
+        goto Build;
+    }
+
+    /* scheme */
+    dest->scheme = relative->scheme != NULL ? relative->scheme : base->scheme;
+
+    /* authority (and host:port) */
+    if (relative->authority.base != NULL) {
+        assert(relative->host.base != NULL);
+        dest->authority = relative->authority;
+        dest->host = relative->host;
+        dest->_port = relative->_port;
+    } else {
+        assert(relative->host.base == NULL);
+        assert(relative->_port == 65535);
+        dest->authority = base->authority;
+        dest->host = base->host;
+        dest->_port = base->_port;
+    }
+
+    /* path */
+    base_path = base->path;
+    if (relative->path.base != NULL) {
+        relative_path = relative->path;
+        h2o_url_resolve_path(&base_path, &relative_path);
+    } else {
+        assert(relative->path.len == 0);
+        relative_path = (h2o_iovec_t){NULL};
+    }
+
+Build:
+    /* build the output */
+    ret = h2o_concat(pool, dest->scheme->name, h2o_iovec_init(H2O_STRLIT("://")), dest->authority, base_path, relative_path);
+    /* adjust dest */
+    dest->authority.base = ret.base + dest->scheme->name.len + 3;
+    dest->host.base = dest->authority.base;
+    if (dest->authority.len != 0 && dest->authority.base[0] == '[')
+        ++dest->host.base;
+    dest->path.base = dest->authority.base + dest->authority.len;
+    dest->path.len = ret.base + ret.len - dest->path.base;
+
+    return ret;
+}
+
+void h2o_url_resolve_path(h2o_iovec_t *base, h2o_iovec_t *relative)
+{
+    size_t base_path_len = base->len, rel_path_offset = 0;
+
+    if (relative->len != 0 && relative->base[0] == '/') {
+        base_path_len = 0;
+    } else {
+        /* relative path */
+        while (base->base[--base_path_len] != '/')
+            ;
+        while (rel_path_offset != relative->len) {
+            if (relative->base[rel_path_offset] == '.') {
+                if (relative->len - rel_path_offset >= 2 && relative->base[rel_path_offset + 1] == '.' &&
+                    (relative->len - rel_path_offset == 2 || relative->base[rel_path_offset + 2] == '/')) {
+                    if (base_path_len != 0) {
+                        while (base->base[--base_path_len] != '/')
+                            ;
+                    }
+                    rel_path_offset += relative->len - rel_path_offset == 2 ? 2 : 3;
+                    continue;
+                }
+                if (relative->len - rel_path_offset == 1) {
+                    rel_path_offset += 1;
+                    continue;
+                } else if (relative->base[rel_path_offset + 1] == '/') {
+                    rel_path_offset += 2;
+                    continue;
+                }
+            }
+            break;
+        }
+        base_path_len += 1;
+    }
+
+    base->len = base_path_len;
+    *relative = h2o_iovec_init(relative->base + rel_path_offset, relative->len - rel_path_offset);
+}
+
+void h2o_url_copy(h2o_mem_pool_t *pool, h2o_url_t *dest, const h2o_url_t *src)
+{
+    dest->scheme = src->scheme;
+    dest->authority = h2o_strdup(pool, src->authority.base, src->authority.len);
+    dest->host = h2o_strdup(pool, src->host.base, src->host.len);
+    dest->path = h2o_strdup(pool, src->path.base, src->path.len);
+    dest->_port = src->_port;
+}
+
+const char *h2o_url_host_to_sun(h2o_iovec_t host, struct sockaddr_un *sa)
+{
+#define PREFIX "unix:"
+
+    if (host.len < sizeof(PREFIX) - 1 || memcmp(host.base, PREFIX, sizeof(PREFIX) - 1) != 0)
+        return h2o_url_host_to_sun_err_is_not_unix_socket;
+
+    if (host.len - sizeof(PREFIX) - 1 >= sizeof(sa->sun_path))
+        return "unix-domain socket path is too long";
+
+    memset(sa, 0, sizeof(*sa));
+    sa->sun_family = AF_UNIX;
+    memcpy(sa->sun_path, host.base + sizeof(PREFIX) - 1, host.len - (sizeof(PREFIX) - 1));
+    return NULL;
+
+#undef PREFIX
+}
+
+const char *h2o_url_host_to_sun_err_is_not_unix_socket = "supplied name does not look like an unix-domain socket";
diff --git a/debian/vendor-h2o/lib/core/config.c b/debian/vendor-h2o/lib/core/config.c
new file mode 100644
index 0000000..08e43a6
--- /dev/null
+++ b/debian/vendor-h2o/lib/core/config.c
@@ -0,0 +1,326 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <inttypes.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "h2o.h"
+#include "h2o/configurator.h"
+#include "h2o/http1.h"
+#include "h2o/http2.h"
+
+static h2o_hostconf_t *create_hostconf(h2o_globalconf_t *globalconf)
+{
+    h2o_hostconf_t *hostconf = h2o_mem_alloc(sizeof(*hostconf));
+    *hostconf = (h2o_hostconf_t){globalconf};
+    hostconf->http2.push_preload = 1; /* enabled by default */
+    h2o_config_init_pathconf(&hostconf->fallback_path, globalconf, NULL, globalconf->mimemap);
+    hostconf->mimemap = globalconf->mimemap;
+    h2o_mem_addref_shared(hostconf->mimemap);
+    return hostconf;
+}
+
+static void destroy_hostconf(h2o_hostconf_t *hostconf)
+{
+    size_t i;
+
+    if (hostconf->authority.hostport.base != hostconf->authority.host.base)
+        free(hostconf->authority.hostport.base);
+    free(hostconf->authority.host.base);
+    for (i = 0; i != hostconf->paths.size; ++i) {
+        h2o_pathconf_t *pathconf = hostconf->paths.entries + i;
+        h2o_config_dispose_pathconf(pathconf);
+    }
+    free(hostconf->paths.entries);
+    h2o_config_dispose_pathconf(&hostconf->fallback_path);
+    h2o_mem_release_shared(hostconf->mimemap);
+
+    free(hostconf);
+}
+
+static void on_dispose_envconf(void *_envconf)
+{
+    h2o_envconf_t *envconf = _envconf;
+    size_t i;
+
+    if (envconf->parent != NULL)
+        h2o_mem_release_shared(envconf->parent);
+
+    for (i = 0; i != envconf->unsets.size; ++i)
+        h2o_mem_release_shared(envconf->unsets.entries[i].base);
+    free(envconf->unsets.entries);
+    for (i = 0; i != envconf->sets.size; ++i)
+        h2o_mem_release_shared(envconf->sets.entries[i].base);
+    free(envconf->sets.entries);
+}
+
+h2o_envconf_t *h2o_config_create_envconf(h2o_envconf_t *parent)
+{
+    h2o_envconf_t *envconf = h2o_mem_alloc_shared(NULL, sizeof(*envconf), on_dispose_envconf);
+    *envconf = (h2o_envconf_t){NULL};
+
+    if (parent != NULL) {
+        envconf->parent = parent;
+        h2o_mem_addref_shared(parent);
+    }
+    return envconf;
+}
+
+void h2o_config_setenv(h2o_envconf_t *envconf, const char *name, const char *value)
+{
+    size_t name_len = strlen(name), i;
+    h2o_iovec_t *value_slot;
+
+    /* remove from the list of unsets */
+    for (i = 0; i != envconf->unsets.size; ++i) {
+        if (h2o_memis(envconf->unsets.entries[i].base, envconf->unsets.entries[i].len, name, name_len)) {
+            h2o_mem_release_shared(envconf->unsets.entries[i].base);
+            h2o_vector_erase(&envconf->unsets, i);
+            break;
+        }
+    }
+    /* find the slot */
+    for (i = 0; i != envconf->sets.size; i += 2) {
+        if (h2o_memis(envconf->sets.entries[i].base, envconf->sets.entries[i].len, name, name_len)) {
+            value_slot = envconf->sets.entries + i + 1;
+            h2o_mem_release_shared(value_slot->base);
+            goto SetValue;
+        }
+    }
+    /* name not found in existing sets */
+    h2o_vector_reserve(NULL, &envconf->sets, envconf->sets.size + 2);
+    envconf->sets.entries[envconf->sets.size++] = h2o_strdup_shared(NULL, name, name_len);
+    value_slot = envconf->sets.entries + envconf->sets.size++;
+SetValue:
+    *value_slot = h2o_strdup_shared(NULL, value, SIZE_MAX);
+}
+
+void h2o_config_unsetenv(h2o_envconf_t *envconf, const char *name)
+{
+    size_t i, name_len = strlen(name);
+
+    /* do nothing if already set */
+    for (i = 0; i != envconf->unsets.size; ++i)
+        if (h2o_memis(envconf->unsets.entries[i].base, envconf->unsets.entries[i].len, name, name_len))
+            return;
+    /* register */
+    h2o_vector_reserve(NULL, &envconf->unsets, envconf->unsets.size + 1);
+    envconf->unsets.entries[envconf->unsets.size++] = h2o_strdup_shared(NULL, name, name_len);
+}
+
+void h2o_config_init_pathconf(h2o_pathconf_t *pathconf, h2o_globalconf_t *globalconf, const char *path, h2o_mimemap_t *mimemap)
+{
+    memset(pathconf, 0, sizeof(*pathconf));
+    pathconf->global = globalconf;
+    h2o_chunked_register(pathconf);
+    if (path != NULL)
+        pathconf->path = h2o_strdup(NULL, path, SIZE_MAX);
+    h2o_mem_addref_shared(mimemap);
+    pathconf->mimemap = mimemap;
+    pathconf->error_log.emit_request_errors = 1;
+}
+
+void h2o_config_dispose_pathconf(h2o_pathconf_t *pathconf)
+{
+#define DESTROY_LIST(type, list)                                                                                                   \
+    do {                                                                                                                           \
+        size_t i;                                                                                                                  \
+        for (i = 0; i != list.size; ++i) {                                                                                         \
+            type *e = list.entries[i];                                                                                             \
+            if (e->dispose != NULL)                                                                                                \
+                e->dispose(e);                                                                                                     \
+            free(e);                                                                                                               \
+        }                                                                                                                          \
+        free(list.entries);                                                                                                        \
+    } while (0)
+    DESTROY_LIST(h2o_handler_t, pathconf->handlers);
+    DESTROY_LIST(h2o_filter_t, pathconf->filters);
+    DESTROY_LIST(h2o_logger_t, pathconf->loggers);
+#undef DESTROY_LIST
+
+    free(pathconf->path.base);
+    if (pathconf->mimemap != NULL)
+        h2o_mem_release_shared(pathconf->mimemap);
+    if (pathconf->env != NULL)
+        h2o_mem_release_shared(pathconf->env);
+}
+
+void h2o_config_init(h2o_globalconf_t *config)
+{
+    memset(config, 0, sizeof(*config));
+    config->hosts = h2o_mem_alloc(sizeof(config->hosts[0]));
+    config->hosts[0] = NULL;
+    h2o_linklist_init_anchor(&config->configurators);
+    config->server_name = h2o_iovec_init(H2O_STRLIT("h2o/" H2O_VERSION));
+    config->max_request_entity_size = H2O_DEFAULT_MAX_REQUEST_ENTITY_SIZE;
+    config->max_delegations = H2O_DEFAULT_MAX_DELEGATIONS;
+    config->handshake_timeout = H2O_DEFAULT_HANDSHAKE_TIMEOUT;
+    config->http1.req_timeout = H2O_DEFAULT_HTTP1_REQ_TIMEOUT;
+    config->http1.upgrade_to_http2 = H2O_DEFAULT_HTTP1_UPGRADE_TO_HTTP2;
+    config->http1.callbacks = H2O_HTTP1_CALLBACKS;
+    config->http2.idle_timeout = H2O_DEFAULT_HTTP2_IDLE_TIMEOUT;
+    config->http2.graceful_shutdown_timeout = H2O_DEFAULT_HTTP2_GRACEFUL_SHUTDOWN_TIMEOUT;
+    config->proxy.io_timeout = H2O_DEFAULT_PROXY_IO_TIMEOUT;
+    config->proxy.emit_x_forwarded_headers = 1;
+    config->proxy.emit_via_header = 1;
+    config->http2.max_concurrent_requests_per_connection = H2O_HTTP2_SETTINGS_HOST.max_concurrent_streams;
+    config->http2.max_streams_for_priority = 16;
+    config->http2.latency_optimization.min_rtt = 50; // milliseconds
+    config->http2.latency_optimization.max_additional_delay = 10;
+    config->http2.latency_optimization.max_cwnd = 65535;
+    config->http2.dos_delay = 100; /* 100ms processing delay when observing suspicious behavior */
+    config->http2.callbacks = H2O_HTTP2_CALLBACKS;
+    config->mimemap = h2o_mimemap_create();
+
+    h2o_configurator__init_core(config);
+}
+
+h2o_pathconf_t *h2o_config_register_path(h2o_hostconf_t *hostconf, const char *path, int flags)
+{
+    h2o_pathconf_t *pathconf;
+
+    h2o_vector_reserve(NULL, &hostconf->paths, hostconf->paths.size + 1);
+    pathconf = hostconf->paths.entries + hostconf->paths.size++;
+
+    h2o_config_init_pathconf(pathconf, hostconf->global, path, hostconf->mimemap);
+
+    return pathconf;
+}
+
+void h2o_config_register_status_handler(h2o_globalconf_t *config, h2o_status_handler_t status_handler)
+{
+    h2o_vector_reserve(NULL, &config->statuses, config->statuses.size + 1);
+    config->statuses.entries[config->statuses.size++] = status_handler;
+}
+
+void h2o_config_register_simple_status_handler(h2o_globalconf_t *config, h2o_iovec_t name, final_status_handler_cb status_handler)
+{
+    h2o_status_handler_t *sh;
+
+    h2o_vector_reserve(NULL, &config->statuses, config->statuses.size + 1);
+    sh = &config->statuses.entries[config->statuses.size++];
+    memset(sh, 0, sizeof(*sh));
+    sh->name = h2o_strdup(NULL, name.base, name.len);
+    sh->final = status_handler;
+}
+
+h2o_hostconf_t *h2o_config_register_host(h2o_globalconf_t *config, h2o_iovec_t host, uint16_t port)
+{
+    h2o_hostconf_t *hostconf = NULL;
+    h2o_iovec_t host_lc;
+
+    assert(host.len != 0);
+
+    /* convert hostname to lowercase */
+    host_lc = h2o_strdup(NULL, host.base, host.len);
+    h2o_strtolower(host_lc.base, host_lc.len);
+
+    { /* return NULL if given authority is already registered */
+        h2o_hostconf_t **p;
+        for (p = config->hosts; *p != NULL; ++p)
+            if (h2o_memis((*p)->authority.host.base, (*p)->authority.host.len, host_lc.base, host_lc.len) &&
+                (*p)->authority.port == port)
+                goto Exit;
+    }
+
+    /* create hostconf */
+    hostconf = create_hostconf(config);
+    hostconf->authority.host = host_lc;
+    host_lc = (h2o_iovec_t){NULL};
+    hostconf->authority.port = port;
+    if (hostconf->authority.port == 65535) {
+        hostconf->authority.hostport = hostconf->authority.host;
+    } else {
+        hostconf->authority.hostport.base = h2o_mem_alloc(hostconf->authority.host.len + sizeof("[]:" H2O_UINT16_LONGEST_STR));
+        if (strchr(hostconf->authority.host.base, ':') != NULL) {
+            hostconf->authority.hostport.len =
+                sprintf(hostconf->authority.hostport.base, "[%s]:%" PRIu16, hostconf->authority.host.base, port);
+        } else {
+            hostconf->authority.hostport.len =
+                sprintf(hostconf->authority.hostport.base, "%s:%" PRIu16, hostconf->authority.host.base, port);
+        }
+    }
+
+    /* append to the list */
+    h2o_append_to_null_terminated_list((void *)&config->hosts, hostconf);
+
+Exit:
+    free(host_lc.base);
+    return hostconf;
+}
+
+void h2o_config_dispose(h2o_globalconf_t *config)
+{
+    size_t i;
+
+    for (i = 0; config->hosts[i] != NULL; ++i) {
+        h2o_hostconf_t *hostconf = config->hosts[i];
+        destroy_hostconf(hostconf);
+    }
+    free(config->hosts);
+
+    h2o_mem_release_shared(config->mimemap);
+    h2o_configurator__dispose_configurators(config);
+}
+
+h2o_handler_t *h2o_create_handler(h2o_pathconf_t *conf, size_t sz)
+{
+    h2o_handler_t *handler = h2o_mem_alloc(sz);
+
+    memset(handler, 0, sz);
+    handler->_config_slot = conf->global->_num_config_slots++;
+
+    h2o_vector_reserve(NULL, &conf->handlers, conf->handlers.size + 1);
+    conf->handlers.entries[conf->handlers.size++] = handler;
+
+    return handler;
+}
+
+h2o_filter_t *h2o_create_filter(h2o_pathconf_t *conf, size_t sz)
+{
+    h2o_filter_t *filter = h2o_mem_alloc(sz);
+
+    memset(filter, 0, sz);
+    filter->_config_slot = conf->global->_num_config_slots++;
+
+    h2o_vector_reserve(NULL, &conf->filters, conf->filters.size + 1);
+    memmove(conf->filters.entries + 1, conf->filters.entries, conf->filters.size * sizeof(conf->filters.entries[0]));
+    conf->filters.entries[0] = filter;
+    ++conf->filters.size;
+
+    return filter;
+}
+
+h2o_logger_t *h2o_create_logger(h2o_pathconf_t *conf, size_t sz)
+{
+    h2o_logger_t *logger = h2o_mem_alloc(sz);
+
+    memset(logger, 0, sz);
+    logger->_config_slot = conf->global->_num_config_slots++;
+
+    h2o_vector_reserve(NULL, &conf->loggers, conf->loggers.size + 1);
+    conf->loggers.entries[conf->loggers.size++] = logger;
+
+    return logger;
+}
diff --git a/debian/vendor-h2o/lib/core/configurator.c b/debian/vendor-h2o/lib/core/configurator.c
new file mode 100644
index 0000000..4731ba2
--- /dev/null
+++ b/debian/vendor-h2o/lib/core/configurator.c
@@ -0,0 +1,1111 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku, Fastly, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include "h2o.h"
+#include "h2o/configurator.h"
+
+struct st_core_config_vars_t {
+    struct {
+        unsigned reprioritize_blocking_assets : 1;
+        unsigned push_preload : 1;
+        h2o_casper_conf_t casper;
+    } http2;
+    struct {
+        unsigned emit_request_errors : 1;
+    } error_log;
+};
+
+struct st_core_configurator_t {
+    h2o_configurator_t super;
+    struct st_core_config_vars_t *vars, _vars_stack[H2O_CONFIGURATOR_NUM_LEVELS + 1];
+};
+
+static h2o_configurator_context_t *create_context(h2o_configurator_context_t *parent, int is_custom_handler)
+{
+    h2o_configurator_context_t *ctx = h2o_mem_alloc(sizeof(*ctx));
+    if (parent == NULL) {
+        *ctx = (h2o_configurator_context_t){NULL};
+        return ctx;
+    }
+    *ctx = *parent;
+    if (ctx->env != NULL)
+        h2o_mem_addref_shared(ctx->env);
+    ctx->parent = parent;
+    return ctx;
+}
+
+static void destroy_context(h2o_configurator_context_t *ctx)
+{
+    if (ctx->env != NULL) {
+        if (ctx->pathconf != NULL)
+            ctx->pathconf->env = ctx->env;
+        else
+            h2o_mem_release_shared(ctx->env);
+    }
+    free(ctx);
+}
+
+static int on_core_enter(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_core_configurator_t *self = (void *)_self;
+
+    ++self->vars;
+    self->vars[0] = self->vars[-1];
+    return 0;
+}
+
+static int on_core_exit(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_core_configurator_t *self = (void *)_self;
+
+    if (ctx->hostconf != NULL && ctx->pathconf == NULL) {
+        /* exitting from host-level configuration */
+        ctx->hostconf->http2.reprioritize_blocking_assets = self->vars->http2.reprioritize_blocking_assets;
+        ctx->hostconf->http2.push_preload = self->vars->http2.push_preload;
+        ctx->hostconf->http2.casper = self->vars->http2.casper;
+    } else if (ctx->pathconf != NULL) {
+        /* exitting from path or extension-level configuration */
+        ctx->pathconf->error_log.emit_request_errors = self->vars->error_log.emit_request_errors;
+    }
+
+    --self->vars;
+    return 0;
+}
+
+static void destroy_configurator(h2o_configurator_t *configurator)
+{
+    if (configurator->dispose != NULL)
+        configurator->dispose(configurator);
+    free(configurator->commands.entries);
+    free(configurator);
+}
+
+static int setup_configurators(h2o_configurator_context_t *ctx, int is_enter, yoml_t *node)
+{
+    h2o_linklist_t *n;
+
+    for (n = ctx->globalconf->configurators.next; n != &ctx->globalconf->configurators; n = n->next) {
+        h2o_configurator_t *c = H2O_STRUCT_FROM_MEMBER(h2o_configurator_t, _link, n);
+        if (is_enter) {
+            if (c->enter != NULL && c->enter(c, ctx, node) != 0)
+                return -1;
+        } else {
+            if (c->exit != NULL && c->exit(c, ctx, node) != 0)
+                return -1;
+        }
+    }
+
+    return 0;
+}
+
+static int config_timeout(h2o_configurator_command_t *cmd, yoml_t *node, uint64_t *slot)
+{
+    uint64_t timeout_in_secs;
+
+    if (h2o_configurator_scanf(cmd, node, "%" SCNu64, &timeout_in_secs) != 0)
+        return -1;
+
+    *slot = timeout_in_secs * 1000;
+    return 0;
+}
+
+int h2o_configurator_apply_commands(h2o_configurator_context_t *ctx, yoml_t *node, int flags_mask, const char **ignore_commands)
+{
+    struct st_cmd_value_t {
+        h2o_configurator_command_t *cmd;
+        yoml_t *value;
+    };
+    H2O_VECTOR(struct st_cmd_value_t) deferred = {NULL}, semi_deferred = {NULL};
+    int ret = -1;
+
+    if (node != NULL && node->type != YOML_TYPE_MAPPING) {
+        h2o_configurator_errprintf(NULL, node, "node must be a MAPPING");
+        goto Exit;
+    }
+
+    /* call on_enter of every configurator */
+    if (setup_configurators(ctx, 1, node) != 0)
+        goto Exit;
+
+    /* handle the configuration commands */
+    if (node != NULL) {
+        size_t i;
+        for (i = 0; i != node->data.mapping.size; ++i) {
+            yoml_t *key = node->data.mapping.elements[i].key, *value = node->data.mapping.elements[i].value;
+            h2o_configurator_command_t *cmd;
+            /* obtain the target command */
+            if (key->type != YOML_TYPE_SCALAR) {
+                h2o_configurator_errprintf(NULL, key, "command must be a string");
+                goto Exit;
+            }
+            if (ignore_commands != NULL) {
+                size_t i;
+                for (i = 0; ignore_commands[i] != NULL; ++i)
+                    if (strcmp(ignore_commands[i], key->data.scalar) == 0)
+                        goto SkipCommand;
+            }
+            if ((cmd = h2o_configurator_get_command(ctx->globalconf, key->data.scalar)) == NULL) {
+                h2o_configurator_errprintf(NULL, key, "unknown command: %s", key->data.scalar);
+                goto Exit;
+            }
+            if ((cmd->flags & flags_mask) == 0) {
+                h2o_configurator_errprintf(cmd, key, "the command cannot be used at this level");
+                goto Exit;
+            }
+            /* check value type */
+            if ((cmd->flags & (H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR | H2O_CONFIGURATOR_FLAG_EXPECT_SEQUENCE |
+                               H2O_CONFIGURATOR_FLAG_EXPECT_MAPPING)) != 0) {
+                switch (value->type) {
+                case YOML_TYPE_SCALAR:
+                    if ((cmd->flags & H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR) == 0) {
+                        h2o_configurator_errprintf(cmd, value, "argument cannot be a scalar");
+                        goto Exit;
+                    }
+                    break;
+                case YOML_TYPE_SEQUENCE:
+                    if ((cmd->flags & H2O_CONFIGURATOR_FLAG_EXPECT_SEQUENCE) == 0) {
+                        h2o_configurator_errprintf(cmd, value, "argument cannot be a sequence");
+                        goto Exit;
+                    }
+                    break;
+                case YOML_TYPE_MAPPING:
+                    if ((cmd->flags & H2O_CONFIGURATOR_FLAG_EXPECT_MAPPING) == 0) {
+                        h2o_configurator_errprintf(cmd, value, "argument cannot be a mapping");
+                        goto Exit;
+                    }
+                    break;
+                default:
+                    assert(!"unreachable");
+                    break;
+                }
+            }
+            /* handle the command (or keep it for later execution) */
+            if ((cmd->flags & H2O_CONFIGURATOR_FLAG_SEMI_DEFERRED) != 0) {
+                h2o_vector_reserve(NULL, &semi_deferred, semi_deferred.size + 1);
+                semi_deferred.entries[semi_deferred.size++] = (struct st_cmd_value_t){cmd, value};
+            } else if ((cmd->flags & H2O_CONFIGURATOR_FLAG_DEFERRED) != 0) {
+                h2o_vector_reserve(NULL, &deferred, deferred.size + 1);
+                deferred.entries[deferred.size++] = (struct st_cmd_value_t){cmd, value};
+            } else {
+                if (cmd->cb(cmd, ctx, value) != 0)
+                    goto Exit;
+            }
+        SkipCommand:;
+        }
+        for (i = 0; i != semi_deferred.size; ++i) {
+            struct st_cmd_value_t *pair = semi_deferred.entries + i;
+            if (pair->cmd->cb(pair->cmd, ctx, pair->value) != 0)
+                goto Exit;
+        }
+        for (i = 0; i != deferred.size; ++i) {
+            struct st_cmd_value_t *pair = deferred.entries + i;
+            if (pair->cmd->cb(pair->cmd, ctx, pair->value) != 0)
+                goto Exit;
+        }
+    }
+
+    /* call on_exit of every configurator */
+    if (setup_configurators(ctx, 0, node) != 0)
+        goto Exit;
+
+    ret = 0;
+Exit:
+    free(deferred.entries);
+    free(semi_deferred.entries);
+    return ret;
+}
+
+static int sort_from_longer_paths(const yoml_mapping_element_t *x, const yoml_mapping_element_t *y)
+{
+    size_t xlen = strlen(x->key->data.scalar), ylen = strlen(y->key->data.scalar);
+    if (xlen < ylen)
+        return 1;
+    else if (xlen > ylen)
+        return -1;
+    /* apply strcmp for stable sort */
+    return strcmp(x->key->data.scalar, y->key->data.scalar);
+}
+
+static yoml_t *convert_path_config_node(h2o_configurator_command_t *cmd, yoml_t *node)
+{
+    size_t i, j;
+
+    switch (node->type) {
+    case YOML_TYPE_MAPPING:
+        break;
+    case YOML_TYPE_SEQUENCE: {
+        /* convert to mapping */
+        yoml_t *map = h2o_mem_alloc(sizeof(yoml_t));
+        *map = (yoml_t){YOML_TYPE_MAPPING};
+        if (node->filename != NULL)
+            map->filename = h2o_strdup(NULL, node->filename, SIZE_MAX).base;
+        map->line = node->line;
+        map->column = node->column;
+        if (node->anchor != NULL)
+            map->anchor = h2o_strdup(NULL, node->anchor, SIZE_MAX).base;
+        map->_refcnt = 1;
+
+        for (i = 0; i != node->data.sequence.size; ++i) {
+            yoml_t *elem = node->data.sequence.elements[i];
+            if (elem->type != YOML_TYPE_MAPPING) {
+                yoml_free(map, NULL);
+                goto Error;
+            }
+            for (j = 0; j != elem->data.mapping.size; ++j) {
+                yoml_t *elemkey = elem->data.mapping.elements[j].key;
+                yoml_t *elemvalue = elem->data.mapping.elements[j].value;
+                map = h2o_mem_realloc(map, offsetof(yoml_t, data.mapping.elements) +
+                                               sizeof(yoml_mapping_element_t) * (map->data.mapping.size + 1));
+                map->data.mapping.elements[map->data.mapping.size].key = elemkey;
+                map->data.mapping.elements[map->data.mapping.size].value = elemvalue;
+                ++map->data.mapping.size;
+                ++elemkey->_refcnt;
+                ++elemvalue->_refcnt;
+            }
+        }
+        return map;
+    } break;
+    default:
+    Error:
+        h2o_configurator_errprintf(cmd, node, "value must be a mapping or sequence of mapping");
+        return NULL;
+    }
+
+    ++node->_refcnt;
+    return node;
+}
+
+static int config_path(h2o_configurator_context_t *parent_ctx, h2o_pathconf_t *pathconf, yoml_t *node)
+{
+    h2o_configurator_context_t *path_ctx = create_context(parent_ctx, 0);
+    path_ctx->pathconf = pathconf;
+    path_ctx->mimemap = &pathconf->mimemap;
+
+    int ret = h2o_configurator_apply_commands(path_ctx, node, H2O_CONFIGURATOR_FLAG_PATH, NULL);
+
+    destroy_context(path_ctx);
+    return ret;
+}
+
+static int on_config_paths(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    size_t i;
+
+    /* sort by the length of the path (descending) */
+    for (i = 0; i != node->data.mapping.size; ++i) {
+        yoml_t *key = node->data.mapping.elements[i].key;
+        if (key->type != YOML_TYPE_SCALAR) {
+            h2o_configurator_errprintf(cmd, key, "key (representing the virtual path) must be a string");
+            return -1;
+        }
+    }
+    qsort(node->data.mapping.elements, node->data.mapping.size, sizeof(node->data.mapping.elements[0]),
+          (int (*)(const void *, const void *))sort_from_longer_paths);
+
+    for (i = 0; i != node->data.mapping.size; ++i) {
+        yoml_t *key = node->data.mapping.elements[i].key, *value;
+        if ((value = convert_path_config_node(cmd, node->data.mapping.elements[i].value)) == NULL)
+            return -1;
+        h2o_pathconf_t *pathconf = h2o_config_register_path(ctx->hostconf, key->data.scalar, 0);
+        int cmd_ret = config_path(ctx, pathconf, value);
+        yoml_free(value, NULL);
+        if (cmd_ret != 0)
+            return cmd_ret;
+    }
+
+    /* configure fallback path along with ordinary paths */
+    return config_path(ctx, &ctx->hostconf->fallback_path, NULL);
+}
+
+static int on_config_hosts(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    size_t i;
+
+    if (node->data.mapping.size == 0) {
+        h2o_configurator_errprintf(cmd, node, "the mapping cannot be empty");
+        return -1;
+    }
+
+    for (i = 0; i != node->data.mapping.size; ++i) {
+        yoml_t *key = node->data.mapping.elements[i].key;
+        yoml_t *value = node->data.mapping.elements[i].value;
+        h2o_iovec_t hostname;
+        uint16_t port;
+        if (key->type != YOML_TYPE_SCALAR) {
+            h2o_configurator_errprintf(cmd, key, "key (representing the hostname) must be a string");
+            return -1;
+        }
+        if (h2o_url_parse_hostport(key->data.scalar, strlen(key->data.scalar), &hostname, &port) == NULL) {
+            h2o_configurator_errprintf(cmd, key, "invalid key (must be either `host` or `host:port`)");
+            return -1;
+        }
+        assert(hostname.len != 0);
+        if ((hostname.base[0] == '*' && !(hostname.len == 1 || hostname.base[1] == '.')) ||
+            memchr(hostname.base + 1, '*', hostname.len - 1) != NULL) {
+            h2o_configurator_errprintf(cmd, key, "wildcard (*) can only be used at the start of the hostname");
+            return -1;
+        }
+        h2o_configurator_context_t *host_ctx = create_context(ctx, 0);
+        if ((host_ctx->hostconf = h2o_config_register_host(host_ctx->globalconf, hostname, port)) == NULL) {
+            h2o_configurator_errprintf(cmd, key, "duplicate host entry");
+            destroy_context(host_ctx);
+            return -1;
+        }
+        host_ctx->mimemap = &host_ctx->hostconf->mimemap;
+        int cmd_ret = h2o_configurator_apply_commands(host_ctx, value, H2O_CONFIGURATOR_FLAG_HOST, NULL);
+        destroy_context(host_ctx);
+        if (cmd_ret != 0)
+            return -1;
+        if (yoml_get(value, "paths") == NULL) {
+            h2o_configurator_errprintf(NULL, value, "mandatory configuration directive `paths` is missing");
+            return -1;
+        }
+    }
+
+    return 0;
+}
+
+static int on_config_limit_request_body(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    return h2o_configurator_scanf(cmd, node, "%zu", &ctx->globalconf->max_request_entity_size);
+}
+
+static int on_config_max_delegations(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    return h2o_configurator_scanf(cmd, node, "%u", &ctx->globalconf->max_delegations);
+}
+
+static int on_config_handshake_timeout(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    return config_timeout(cmd, node, &ctx->globalconf->handshake_timeout);
+}
+
+static int on_config_http1_request_timeout(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    return config_timeout(cmd, node, &ctx->globalconf->http1.req_timeout);
+}
+
+static int on_config_http1_upgrade_to_http2(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON");
+    if (ret == -1)
+        return -1;
+    ctx->globalconf->http1.upgrade_to_http2 = (int)ret;
+    return 0;
+}
+
+static int on_config_http2_idle_timeout(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    return config_timeout(cmd, node, &ctx->globalconf->http2.idle_timeout);
+}
+
+static int on_config_http2_graceful_shutdown_timeout(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    return config_timeout(cmd, node, &ctx->globalconf->http2.graceful_shutdown_timeout);
+}
+
+static int on_config_http2_max_concurrent_requests_per_connection(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx,
+                                                                  yoml_t *node)
+{
+    return h2o_configurator_scanf(cmd, node, "%zu", &ctx->globalconf->http2.max_concurrent_requests_per_connection);
+}
+
+static int on_config_http2_latency_optimization_min_rtt(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx,
+                                                        yoml_t *node)
+{
+    return h2o_configurator_scanf(cmd, node, "%u", &ctx->globalconf->http2.latency_optimization.min_rtt);
+}
+
+static int on_config_http2_latency_optimization_max_additional_delay(h2o_configurator_command_t *cmd,
+                                                                     h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    double ratio;
+    if (h2o_configurator_scanf(cmd, node, "%lf", &ratio) != 0)
+        return -1;
+    if (!(0.0 < ratio)) {
+        h2o_configurator_errprintf(cmd, node, "ratio must be a positive number");
+        return -1;
+    }
+    ctx->globalconf->http2.latency_optimization.max_additional_delay = 100 * ratio;
+    return 0;
+}
+
+static int on_config_http2_latency_optimization_max_cwnd(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx,
+                                                         yoml_t *node)
+{
+    return h2o_configurator_scanf(cmd, node, "%u", &ctx->globalconf->http2.latency_optimization.max_cwnd);
+}
+
+static int on_config_http2_reprioritize_blocking_assets(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx,
+                                                        yoml_t *node)
+{
+    struct st_core_configurator_t *self = (void *)cmd->configurator;
+    ssize_t on;
+
+    if ((on = h2o_configurator_get_one_of(cmd, node, "OFF,ON")) == -1)
+        return -1;
+    self->vars->http2.reprioritize_blocking_assets = (int)on;
+
+    return 0;
+}
+
+static int on_config_http2_push_preload(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_core_configurator_t *self = (void *)cmd->configurator;
+    ssize_t on;
+
+    if ((on = h2o_configurator_get_one_of(cmd, node, "OFF,ON")) == -1)
+        return -1;
+    self->vars->http2.push_preload = (int)on;
+
+    return 0;
+}
+
+static int on_config_http2_casper(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    static const h2o_casper_conf_t defaults = {
+        13, /* casper_bits: default (2^13 ~= 100 assets * 1/0.01 collision probability) */
+        0   /* track blocking assets only */
+    };
+
+    struct st_core_configurator_t *self = (void *)cmd->configurator;
+
+    switch (node->type) {
+    case YOML_TYPE_SCALAR:
+        if (strcasecmp(node->data.scalar, "OFF") == 0) {
+            self->vars->http2.casper = (h2o_casper_conf_t){0};
+        } else if (strcasecmp(node->data.scalar, "ON") == 0) {
+            self->vars->http2.casper = defaults;
+        }
+        break;
+    case YOML_TYPE_MAPPING: {
+        /* set to default */
+        self->vars->http2.casper = defaults;
+        /* override the attributes defined */
+        yoml_t *t;
+        if ((t = yoml_get(node, "capacity-bits")) != NULL) {
+            if (!(t->type == YOML_TYPE_SCALAR && sscanf(t->data.scalar, "%u", &self->vars->http2.casper.capacity_bits) == 1 &&
+                  self->vars->http2.casper.capacity_bits < 16)) {
+                h2o_configurator_errprintf(cmd, t, "value of `capacity-bits` must be an integer between 0 to 15");
+                return -1;
+            }
+        }
+        if ((t = yoml_get(node, "tracking-types")) != NULL) {
+            if (t->type == YOML_TYPE_SCALAR && strcasecmp(t->data.scalar, "blocking-assets") == 0) {
+                self->vars->http2.casper.track_all_types = 0;
+            } else if (t->type == YOML_TYPE_SCALAR && strcasecmp(t->data.scalar, "all") == 0) {
+                self->vars->http2.casper.track_all_types = 1;
+            } else {
+                h2o_configurator_errprintf(cmd, t, "value of `tracking-types` must be either of: `blocking-assets` or `all`");
+                return -1;
+            }
+        }
+    } break;
+    default:
+        h2o_configurator_errprintf(cmd, node, "value must be `OFF`,`ON` or a mapping containing the necessary attributes");
+        return -1;
+    }
+
+    return 0;
+}
+
+
+static int on_config_http2_dos_delay(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    return config_timeout(cmd, node, &ctx->globalconf->http2.dos_delay);
+}
+
+static int assert_is_mimetype(h2o_configurator_command_t *cmd, yoml_t *node)
+{
+    if (node->type != YOML_TYPE_SCALAR) {
+        h2o_configurator_errprintf(cmd, node, "expected a scalar (mime-type)");
+        return -1;
+    }
+    if (strchr(node->data.scalar, '/') == NULL) {
+        h2o_configurator_errprintf(cmd, node, "the string \"%s\" does not look like a mime-type", node->data.scalar);
+        return -1;
+    }
+    return 0;
+}
+
+static int assert_is_extension(h2o_configurator_command_t *cmd, yoml_t *node)
+{
+    if (node->type != YOML_TYPE_SCALAR) {
+        h2o_configurator_errprintf(cmd, node, "expected a scalar (extension)");
+        return -1;
+    }
+    if (node->data.scalar[0] != '.') {
+        h2o_configurator_errprintf(cmd, node, "given extension \"%s\" does not start with a \".\"", node->data.scalar);
+        return -1;
+    }
+    return 0;
+}
+
+static int set_mimetypes(h2o_configurator_command_t *cmd, h2o_mimemap_t *mimemap, yoml_t *node)
+{
+    size_t i, j;
+
+    assert(node->type == YOML_TYPE_MAPPING);
+
+    for (i = 0; i != node->data.mapping.size; ++i) {
+        yoml_t *key = node->data.mapping.elements[i].key;
+        yoml_t *value = node->data.mapping.elements[i].value;
+        if (assert_is_mimetype(cmd, key) != 0)
+            return -1;
+        switch (value->type) {
+        case YOML_TYPE_SCALAR:
+            if (assert_is_extension(cmd, value) != 0)
+                return -1;
+            h2o_mimemap_define_mimetype(mimemap, value->data.scalar + 1, key->data.scalar, NULL);
+            break;
+        case YOML_TYPE_SEQUENCE:
+            for (j = 0; j != value->data.sequence.size; ++j) {
+                yoml_t *ext_node = value->data.sequence.elements[j];
+                if (assert_is_extension(cmd, ext_node) != 0)
+                    return -1;
+                h2o_mimemap_define_mimetype(mimemap, ext_node->data.scalar + 1, key->data.scalar, NULL);
+            }
+            break;
+        case YOML_TYPE_MAPPING: {
+            yoml_t *t;
+            h2o_mime_attributes_t attr;
+            h2o_mimemap_get_default_attributes(key->data.scalar, &attr);
+            if ((t = yoml_get(value, "is_compressible")) != NULL) {
+                if (t->type == YOML_TYPE_SCALAR && strcasecmp(t->data.scalar, "YES") == 0) {
+                    attr.is_compressible = 1;
+                } else if (t->type == YOML_TYPE_SCALAR && strcasecmp(t->data.scalar, "NO") == 0) {
+                    attr.is_compressible = 0;
+                } else {
+                    h2o_configurator_errprintf(cmd, t, "`is_compressible` attribute must be either of: `YES` or `NO`");
+                    return -1;
+                }
+            }
+            if ((t = yoml_get(value, "priority")) != NULL) {
+                if (t->type == YOML_TYPE_SCALAR && strcasecmp(t->data.scalar, "normal") == 0) {
+                    attr.priority = H2O_MIME_ATTRIBUTE_PRIORITY_NORMAL;
+                } else if (t->type == YOML_TYPE_SCALAR && strcasecmp(t->data.scalar, "highest") == 0) {
+                    attr.priority = H2O_MIME_ATTRIBUTE_PRIORITY_HIGHEST;
+                } else {
+                    h2o_configurator_errprintf(cmd, t, "`priority` attribute must be either of: `normal` or `highest`");
+                    return -1;
+                }
+            }
+            if ((t = yoml_get(value, "extensions")) == NULL) {
+                h2o_configurator_errprintf(cmd, value, "cannot find mandatory attribute `extensions`");
+                return -1;
+            }
+            if (t->type != YOML_TYPE_SEQUENCE) {
+                h2o_configurator_errprintf(cmd, t, "`extensions` attribute must be a sequence of scalars");
+                return -1;
+            }
+            for (j = 0; j != t->data.sequence.size; ++j) {
+                yoml_t *ext_node = t->data.sequence.elements[j];
+                if (assert_is_extension(cmd, ext_node) != 0)
+                    return -1;
+                h2o_mimemap_define_mimetype(mimemap, ext_node->data.scalar + 1, key->data.scalar, &attr);
+            }
+        } break;
+        default:
+            fprintf(stderr, "logic flaw at %s:%d\n", __FILE__, __LINE__);
+            abort();
+        }
+    }
+
+    return 0;
+}
+
+static int on_config_mime_settypes(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    h2o_mimemap_t *newmap = h2o_mimemap_create();
+    h2o_mimemap_clear_types(newmap);
+    h2o_mimemap_set_default_type(newmap, h2o_mimemap_get_default_type(*ctx->mimemap)->data.mimetype.base, NULL);
+    if (set_mimetypes(cmd, newmap, node) != 0) {
+        h2o_mem_release_shared(newmap);
+        return -1;
+    }
+
+    h2o_mem_release_shared(*ctx->mimemap);
+    *ctx->mimemap = newmap;
+    return 0;
+}
+
+static void clone_mimemap_if_clean(h2o_configurator_context_t *ctx)
+{
+    if (ctx->parent == NULL)
+        return;
+    if (*ctx->mimemap != *ctx->parent->mimemap)
+        return;
+    h2o_mem_release_shared(*ctx->mimemap);
+    /* even after release, ctx->mimemap is still retained by the parent and therefore we can use it as the argument to clone */
+    *ctx->mimemap = h2o_mimemap_clone(*ctx->mimemap);
+}
+
+static int on_config_mime_addtypes(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    clone_mimemap_if_clean(ctx);
+    return set_mimetypes(cmd, *ctx->mimemap, node);
+}
+
+static int on_config_mime_removetypes(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    size_t i;
+
+    clone_mimemap_if_clean(ctx);
+    for (i = 0; i != node->data.sequence.size; ++i) {
+        yoml_t *ext_node = node->data.sequence.elements[i];
+        if (assert_is_extension(cmd, ext_node) != 0)
+            return -1;
+        h2o_mimemap_remove_type(*ctx->mimemap, ext_node->data.scalar + 1);
+    }
+
+    return 0;
+}
+
+static int on_config_mime_setdefaulttype(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    if (assert_is_mimetype(cmd, node) != 0)
+        return -1;
+
+    clone_mimemap_if_clean(ctx);
+    h2o_mimemap_set_default_type(*ctx->mimemap, node->data.scalar, NULL);
+
+    return 0;
+}
+
+static int on_config_custom_handler(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    static const char *ignore_commands[] = {"extension", NULL};
+    yoml_t *ext_node;
+    const char **exts;
+    h2o_mimemap_type_t *type = NULL;
+
+    if (node->type != YOML_TYPE_MAPPING) {
+        h2o_configurator_errprintf(cmd, node, "argument must be a MAPPING");
+        return -1;
+    }
+    if ((ext_node = yoml_get(node, "extension")) == NULL) {
+        h2o_configurator_errprintf(cmd, node, "mandatory key `extension` is missing");
+        return -1;
+    }
+
+    /* create dynamic type */
+    switch (ext_node->type) {
+    case YOML_TYPE_SCALAR:
+        if (assert_is_extension(cmd, ext_node) != 0)
+            return -1;
+        exts = alloca(2 * sizeof(*exts));
+        exts[0] = ext_node->data.scalar + 1;
+        exts[1] = NULL;
+        break;
+    case YOML_TYPE_SEQUENCE: {
+        exts = alloca((ext_node->data.sequence.size + 1) * sizeof(*exts));
+        size_t i;
+        for (i = 0; i != ext_node->data.sequence.size; ++i) {
+            yoml_t *n = ext_node->data.sequence.elements[i];
+            if (assert_is_extension(cmd, n) != 0)
+                return -1;
+            exts[i] = n->data.scalar + 1;
+        }
+        exts[i] = NULL;
+    } break;
+    default:
+        h2o_configurator_errprintf(cmd, ext_node, "`extensions` must be a scalar or sequence of scalar");
+        return -1;
+    }
+    clone_mimemap_if_clean(ctx);
+    type = h2o_mimemap_define_dynamic(*ctx->mimemap, exts, ctx->globalconf);
+
+    /* apply the configuration commands */
+    h2o_configurator_context_t *ext_ctx = create_context(ctx, 1);
+    ext_ctx->pathconf = &type->data.dynamic.pathconf;
+    ext_ctx->mimemap = NULL;
+    int cmd_ret = h2o_configurator_apply_commands(ext_ctx, node, H2O_CONFIGURATOR_FLAG_EXTENSION, ignore_commands);
+    destroy_context(ext_ctx);
+    if (cmd_ret != 0)
+        return cmd_ret;
+    switch (type->data.dynamic.pathconf.handlers.size) {
+    case 1:
+        break;
+    case 0:
+        h2o_configurator_errprintf(cmd, node, "no handler declared for given extension");
+        return -1;
+    default:
+        h2o_configurator_errprintf(cmd, node, "cannot assign more than one handler for given extension");
+        return -1;
+    }
+
+    return 0;
+}
+
+static void inherit_env_if_necessary(h2o_configurator_context_t *ctx)
+{
+    if (ctx->env == (ctx->parent != NULL ? ctx->parent->env : NULL))
+        ctx->env = h2o_config_create_envconf(ctx->env);
+}
+
+static int on_config_setenv(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    size_t i;
+
+    inherit_env_if_necessary(ctx);
+
+    for (i = 0; i != node->data.mapping.size; ++i) {
+        yoml_t *key = node->data.mapping.elements[i].key, *value = node->data.mapping.elements[i].value;
+        if (key->type != YOML_TYPE_SCALAR) {
+            h2o_configurator_errprintf(cmd, key, "key must be a scalar");
+            return -1;
+        }
+        if (value->type != YOML_TYPE_SCALAR) {
+            h2o_configurator_errprintf(cmd, value, "value must be a scalar");
+            return -1;
+        }
+        h2o_config_setenv(ctx->env, key->data.scalar, value->data.scalar);
+    }
+
+    return 0;
+}
+
+static int on_config_unsetenv(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    inherit_env_if_necessary(ctx);
+
+    switch (node->type) {
+    case YOML_TYPE_SCALAR:
+        h2o_config_unsetenv(ctx->env, node->data.scalar);
+        break;
+    case YOML_TYPE_SEQUENCE: {
+        size_t i;
+        for (i = 0; i != node->data.sequence.size; ++i) {
+            yoml_t *element = node->data.sequence.elements[i];
+            if (element->type != YOML_TYPE_SCALAR) {
+                h2o_configurator_errprintf(cmd, element, "element of a sequence passed to unsetenv must be a scalar");
+                return -1;
+            }
+            h2o_config_unsetenv(ctx->env, element->data.scalar);
+        }
+    } break;
+    default:
+        h2o_configurator_errprintf(cmd, node, "argument to unsetenv must be either a scalar or a sequence");
+        return -1;
+    }
+
+    return 0;
+}
+
+static int on_config_server_name(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    ctx->globalconf->server_name = h2o_strdup(NULL, node->data.scalar, SIZE_MAX);
+    return 0;
+}
+
+static int on_config_send_server_name(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    switch(h2o_configurator_get_one_of(cmd, node, "OFF,ON,preserve")) {
+    case 0: /* off */
+        ctx->globalconf->server_name = h2o_iovec_init(H2O_STRLIT(""));
+        break;
+    case 1: /* on */
+        break;
+    case 2: /* preserve */
+        ctx->globalconf->server_name = h2o_iovec_init(H2O_STRLIT(""));
+        ctx->globalconf->proxy.preserve_server_header = 1;
+        break;
+    default:
+        return -1;
+    }
+    return 0;
+}
+
+static int on_config_error_log_emit_request_errors(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_core_configurator_t *self = (void *)cmd->configurator;
+    ssize_t on;
+
+    if ((on = h2o_configurator_get_one_of(cmd, node, "OFF,ON")) == -1)
+        return -1;
+
+    self->vars->error_log.emit_request_errors = (int)on;
+    return 0;
+}
+
+void h2o_configurator__init_core(h2o_globalconf_t *conf)
+{
+    /* check if already initialized */
+    if (h2o_configurator_get_command(conf, "files") != NULL)
+        return;
+
+    { /* `hosts` and `paths` */
+        h2o_configurator_t *c = h2o_configurator_create(conf, sizeof(*c));
+        h2o_configurator_define_command(c, "hosts", H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_MAPPING |
+                                                        H2O_CONFIGURATOR_FLAG_DEFERRED,
+                                        on_config_hosts);
+        h2o_configurator_define_command(c, "paths", H2O_CONFIGURATOR_FLAG_HOST | H2O_CONFIGURATOR_FLAG_EXPECT_MAPPING |
+                                                        H2O_CONFIGURATOR_FLAG_DEFERRED,
+                                        on_config_paths);
+    };
+
+    { /* setup global configurators */
+        struct st_core_configurator_t *c = (void *)h2o_configurator_create(conf, sizeof(*c));
+        c->super.enter = on_core_enter;
+        c->super.exit = on_core_exit;
+        c->vars = c->_vars_stack;
+        c->vars->http2.reprioritize_blocking_assets = 1; /* defaults to ON */
+        c->vars->http2.push_preload = 1;                 /* defaults to ON */
+        c->vars->error_log.emit_request_errors = 1;      /* defaults to ON */
+        h2o_configurator_define_command(&c->super, "limit-request-body",
+                                        H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                        on_config_limit_request_body);
+        h2o_configurator_define_command(&c->super, "max-delegations",
+                                        H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                        on_config_max_delegations);
+        h2o_configurator_define_command(&c->super, "handshake-timeout",
+                                        H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                        on_config_handshake_timeout);
+        h2o_configurator_define_command(&c->super, "http1-request-timeout",
+                                        H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                        on_config_http1_request_timeout);
+        h2o_configurator_define_command(&c->super, "http1-upgrade-to-http2",
+                                        H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                        on_config_http1_upgrade_to_http2);
+        h2o_configurator_define_command(&c->super, "http2-idle-timeout",
+                                        H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                        on_config_http2_idle_timeout);
+        h2o_configurator_define_command(&c->super, "http2-graceful-shutdown-timeout",
+                                        H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                        on_config_http2_graceful_shutdown_timeout);
+        h2o_configurator_define_command(&c->super, "http2-max-concurrent-requests-per-connection",
+                                        H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                        on_config_http2_max_concurrent_requests_per_connection);
+        h2o_configurator_define_command(&c->super, "http2-latency-optimization-min-rtt",
+                                        H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                        on_config_http2_latency_optimization_min_rtt);
+        h2o_configurator_define_command(&c->super, "http2-latency-optimization-max-additional-delay",
+                                        H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                        on_config_http2_latency_optimization_max_additional_delay);
+        h2o_configurator_define_command(&c->super, "http2-latency-optimization-max-cwnd",
+                                        H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                        on_config_http2_latency_optimization_max_cwnd);
+        h2o_configurator_define_command(&c->super, "http2-reprioritize-blocking-assets",
+                                        H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_HOST |
+                                            H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                        on_config_http2_reprioritize_blocking_assets);
+        h2o_configurator_define_command(&c->super, "http2-push-preload", H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_HOST |
+                                                                             H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                        on_config_http2_push_preload);
+        h2o_configurator_define_command(&c->super, "http2-casper", H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_HOST,
+                                        on_config_http2_casper);
+        h2o_configurator_define_command(&c->super, "http2-dos-delay",
+                                        H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                        on_config_http2_dos_delay);
+        h2o_configurator_define_command(&c->super, "file.mime.settypes",
+                                        (H2O_CONFIGURATOR_FLAG_ALL_LEVELS & ~H2O_CONFIGURATOR_FLAG_EXTENSION) |
+                                            H2O_CONFIGURATOR_FLAG_EXPECT_MAPPING,
+                                        on_config_mime_settypes);
+        h2o_configurator_define_command(&c->super, "file.mime.addtypes",
+                                        (H2O_CONFIGURATOR_FLAG_ALL_LEVELS & ~H2O_CONFIGURATOR_FLAG_EXTENSION) |
+                                            H2O_CONFIGURATOR_FLAG_EXPECT_MAPPING,
+                                        on_config_mime_addtypes);
+        h2o_configurator_define_command(&c->super, "file.mime.removetypes",
+                                        (H2O_CONFIGURATOR_FLAG_ALL_LEVELS & ~H2O_CONFIGURATOR_FLAG_EXTENSION) |
+                                            H2O_CONFIGURATOR_FLAG_EXPECT_SEQUENCE,
+                                        on_config_mime_removetypes);
+        h2o_configurator_define_command(&c->super, "file.mime.setdefaulttype",
+                                        (H2O_CONFIGURATOR_FLAG_ALL_LEVELS & ~H2O_CONFIGURATOR_FLAG_EXTENSION) |
+                                            H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                        on_config_mime_setdefaulttype);
+        h2o_configurator_define_command(&c->super, "file.custom-handler",
+                                        (H2O_CONFIGURATOR_FLAG_ALL_LEVELS & ~H2O_CONFIGURATOR_FLAG_EXTENSION) |
+                                            H2O_CONFIGURATOR_FLAG_SEMI_DEFERRED,
+                                        on_config_custom_handler);
+        h2o_configurator_define_command(&c->super, "setenv",
+                                        H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_MAPPING, on_config_setenv);
+        h2o_configurator_define_command(&c->super, "unsetenv", H2O_CONFIGURATOR_FLAG_ALL_LEVELS, on_config_unsetenv);
+        h2o_configurator_define_command(&c->super, "server-name",
+                                        H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_server_name);
+        h2o_configurator_define_command(&c->super, "send-server-name",
+                                        H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR |
+                                            H2O_CONFIGURATOR_FLAG_DEFERRED,
+                                        on_config_send_server_name);
+        h2o_configurator_define_command(&c->super, "error-log.emit-request-errors",
+                                        H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                        on_config_error_log_emit_request_errors);
+    }
+}
+
+void h2o_configurator__dispose_configurators(h2o_globalconf_t *conf)
+{
+    while (!h2o_linklist_is_empty(&conf->configurators)) {
+        h2o_configurator_t *c = H2O_STRUCT_FROM_MEMBER(h2o_configurator_t, _link, conf->configurators.next);
+        h2o_linklist_unlink(&c->_link);
+        if (c->dispose != NULL)
+            c->dispose(c);
+        destroy_configurator(c);
+    }
+}
+
+h2o_configurator_t *h2o_configurator_create(h2o_globalconf_t *conf, size_t sz)
+{
+    h2o_configurator_t *c;
+
+    assert(sz >= sizeof(*c));
+
+    c = h2o_mem_alloc(sz);
+    memset(c, 0, sz);
+    h2o_linklist_insert(&conf->configurators, &c->_link);
+
+    return c;
+}
+
+void h2o_configurator_define_command(h2o_configurator_t *configurator, const char *name, int flags, h2o_configurator_command_cb cb)
+{
+    h2o_configurator_command_t *cmd;
+
+    h2o_vector_reserve(NULL, &configurator->commands, configurator->commands.size + 1);
+    cmd = configurator->commands.entries + configurator->commands.size++;
+    cmd->configurator = configurator;
+    cmd->flags = flags;
+    cmd->name = name;
+    cmd->cb = cb;
+}
+
+h2o_configurator_command_t *h2o_configurator_get_command(h2o_globalconf_t *conf, const char *name)
+{
+    h2o_linklist_t *node;
+    size_t i;
+
+    for (node = conf->configurators.next; node != &conf->configurators; node = node->next) {
+        h2o_configurator_t *configurator = H2O_STRUCT_FROM_MEMBER(h2o_configurator_t, _link, node);
+        for (i = 0; i != configurator->commands.size; ++i) {
+            h2o_configurator_command_t *cmd = configurator->commands.entries + i;
+            if (strcmp(cmd->name, name) == 0) {
+                return cmd;
+            }
+        }
+    }
+
+    return NULL;
+}
+
+int h2o_configurator_apply(h2o_globalconf_t *config, yoml_t *node, int dry_run)
+{
+    h2o_configurator_context_t *ctx = create_context(NULL, 0);
+    ctx->globalconf = config;
+    ctx->mimemap = &ctx->globalconf->mimemap;
+    ctx->dry_run = dry_run;
+    int cmd_ret = h2o_configurator_apply_commands(ctx, node, H2O_CONFIGURATOR_FLAG_GLOBAL, NULL);
+    destroy_context(ctx);
+
+    if (cmd_ret != 0)
+        return cmd_ret;
+    if (config->hosts[0] == NULL) {
+        h2o_configurator_errprintf(NULL, node, "mandatory configuration directive `hosts` is missing");
+        return -1;
+    }
+    return 0;
+}
+
+void h2o_configurator_errprintf(h2o_configurator_command_t *cmd, yoml_t *node, const char *reason, ...)
+{
+    va_list args;
+
+    fprintf(stderr, "[%s:%zu] ", node->filename ? node->filename : "-", node->line + 1);
+    if (cmd != NULL)
+        fprintf(stderr, "in command %s, ", cmd->name);
+    va_start(args, reason);
+    vfprintf(stderr, reason, args);
+    va_end(args);
+    fputc('\n', stderr);
+}
+
+int h2o_configurator_scanf(h2o_configurator_command_t *cmd, yoml_t *node, const char *fmt, ...)
+{
+    va_list args;
+    int sscan_ret;
+
+    if (node->type != YOML_TYPE_SCALAR)
+        goto Error;
+    va_start(args, fmt);
+    sscan_ret = vsscanf(node->data.scalar, fmt, args);
+    va_end(args);
+    if (sscan_ret != 1)
+        goto Error;
+
+    return 0;
+Error:
+    h2o_configurator_errprintf(cmd, node, "argument must match the format: %s", fmt);
+    return -1;
+}
+
+ssize_t h2o_configurator_get_one_of(h2o_configurator_command_t *cmd, yoml_t *node, const char *candidates)
+{
+    const char *config_str, *cand_str;
+    ssize_t config_str_len, cand_index;
+
+    if (node->type != YOML_TYPE_SCALAR)
+        goto Error;
+
+    config_str = node->data.scalar;
+    config_str_len = strlen(config_str);
+
+    cand_str = candidates;
+    for (cand_index = 0;; ++cand_index) {
+        if (strncasecmp(cand_str, config_str, config_str_len) == 0 &&
+            (cand_str[config_str_len] == '\0' || cand_str[config_str_len] == ',')) {
+            /* found */
+            return cand_index;
+        }
+        cand_str = strchr(cand_str, ',');
+        if (cand_str == NULL)
+            goto Error;
+        cand_str += 1; /* skip ',' */
+    }
+/* not reached */
+
+Error:
+    h2o_configurator_errprintf(cmd, node, "argument must be one of: %s", candidates);
+    return -1;
+}
+
+char *h2o_configurator_get_cmd_path(const char *cmd)
+{
+    char *root, *cmd_fullpath;
+
+    /* just return the cmd (being strdup'ed) in case we do not need to prefix the value */
+    if (cmd[0] == '/' || strchr(cmd, '/') == NULL)
+        goto ReturnOrig;
+
+    /* obtain root */
+    if ((root = getenv("H2O_ROOT")) == NULL) {
+        root = H2O_TO_STR(H2O_ROOT);
+    }
+
+    /* build full-path and return */
+    cmd_fullpath = h2o_mem_alloc(strlen(root) + strlen(cmd) + 2);
+    sprintf(cmd_fullpath, "%s/%s", root, cmd);
+    return cmd_fullpath;
+
+ReturnOrig:
+    return h2o_strdup(NULL, cmd, SIZE_MAX).base;
+}
diff --git a/debian/vendor-h2o/lib/core/context.c b/debian/vendor-h2o/lib/core/context.c
new file mode 100644
index 0000000..ac4b0aa
--- /dev/null
+++ b/debian/vendor-h2o/lib/core/context.c
@@ -0,0 +1,203 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <stddef.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include "h2o.h"
+#include "h2o/memcached.h"
+
+void h2o_context_init_pathconf_context(h2o_context_t *ctx, h2o_pathconf_t *pathconf)
+{
+    /* add pathconf to the inited list (or return if already inited) */
+    size_t i;
+    for (i = 0; i != ctx->_pathconfs_inited.size; ++i)
+        if (ctx->_pathconfs_inited.entries[i] == pathconf)
+            return;
+    h2o_vector_reserve(NULL, &ctx->_pathconfs_inited, ctx->_pathconfs_inited.size + 1);
+    ctx->_pathconfs_inited.entries[ctx->_pathconfs_inited.size++] = pathconf;
+
+#define DOIT(type, list)                                                                                                           \
+    do {                                                                                                                           \
+        size_t i;                                                                                                                  \
+        for (i = 0; i != pathconf->list.size; ++i) {                                                                               \
+            type *o = pathconf->list.entries[i];                                                                                   \
+            if (o->on_context_init != NULL)                                                                                        \
+                o->on_context_init(o, ctx);                                                                                        \
+        }                                                                                                                          \
+    } while (0)
+
+    DOIT(h2o_handler_t, handlers);
+    DOIT(h2o_filter_t, filters);
+    DOIT(h2o_logger_t, loggers);
+
+#undef DOIT
+}
+
+void h2o_context_dispose_pathconf_context(h2o_context_t *ctx, h2o_pathconf_t *pathconf)
+{
+    /* nullify pathconf in the inited list (or return if already disposed) */
+    size_t i;
+    for (i = 0; i != ctx->_pathconfs_inited.size; ++i)
+        if (ctx->_pathconfs_inited.entries[i] == pathconf)
+            break;
+    if (i == ctx->_pathconfs_inited.size)
+        return;
+    ctx->_pathconfs_inited.entries[i] = NULL;
+
+#define DOIT(type, list)                                                                                                           \
+    do {                                                                                                                           \
+        size_t i;                                                                                                                  \
+        for (i = 0; i != pathconf->list.size; ++i) {                                                                               \
+            type *o = pathconf->list.entries[i];                                                                                   \
+            if (o->on_context_dispose != NULL)                                                                                     \
+                o->on_context_dispose(o, ctx);                                                                                     \
+        }                                                                                                                          \
+    } while (0)
+
+    DOIT(h2o_handler_t, handlers);
+    DOIT(h2o_filter_t, filters);
+    DOIT(h2o_logger_t, loggers);
+
+#undef DOIT
+}
+
+void h2o_context_init(h2o_context_t *ctx, h2o_loop_t *loop, h2o_globalconf_t *config)
+{
+    size_t i, j;
+
+    assert(config->hosts[0] != NULL);
+
+    memset(ctx, 0, sizeof(*ctx));
+    ctx->loop = loop;
+    ctx->globalconf = config;
+    h2o_timeout_init(ctx->loop, &ctx->zero_timeout, 0);
+    h2o_timeout_init(ctx->loop, &ctx->one_sec_timeout, 1000);
+    h2o_timeout_init(ctx->loop, &ctx->hundred_ms_timeout, 100);
+    ctx->queue = h2o_multithread_create_queue(loop);
+    h2o_multithread_register_receiver(ctx->queue, &ctx->receivers.hostinfo_getaddr, h2o_hostinfo_getaddr_receiver);
+    ctx->filecache = h2o_filecache_create(config->filecache.capacity);
+
+    h2o_timeout_init(ctx->loop, &ctx->handshake_timeout, config->handshake_timeout);
+    h2o_timeout_init(ctx->loop, &ctx->http1.req_timeout, config->http1.req_timeout);
+    h2o_linklist_init_anchor(&ctx->http1._conns);
+    h2o_timeout_init(ctx->loop, &ctx->http2.idle_timeout, config->http2.idle_timeout);
+    h2o_timeout_init(ctx->loop, &ctx->http2.graceful_shutdown_timeout, config->http2.graceful_shutdown_timeout);
+    h2o_timeout_init(ctx->loop, &ctx->http2.dos_delay_timeout, config->http2.dos_delay);
+    h2o_linklist_init_anchor(&ctx->http2._conns);
+    ctx->proxy.client_ctx.loop = loop;
+    h2o_timeout_init(ctx->loop, &ctx->proxy.io_timeout, config->proxy.io_timeout);
+    ctx->proxy.client_ctx.getaddr_receiver = &ctx->receivers.hostinfo_getaddr;
+    ctx->proxy.client_ctx.io_timeout = &ctx->proxy.io_timeout;
+    ctx->proxy.client_ctx.ssl_ctx = config->proxy.ssl_ctx;
+
+    ctx->_module_configs = h2o_mem_alloc(sizeof(*ctx->_module_configs) * config->_num_config_slots);
+    memset(ctx->_module_configs, 0, sizeof(*ctx->_module_configs) * config->_num_config_slots);
+
+    static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+    pthread_mutex_lock(&mutex);
+    for (i = 0; config->hosts[i] != NULL; ++i) {
+        h2o_hostconf_t *hostconf = config->hosts[i];
+        for (j = 0; j != hostconf->paths.size; ++j) {
+            h2o_pathconf_t *pathconf = hostconf->paths.entries + j;
+            h2o_context_init_pathconf_context(ctx, pathconf);
+        }
+        h2o_context_init_pathconf_context(ctx, &hostconf->fallback_path);
+    }
+    pthread_mutex_unlock(&mutex);
+}
+
+void h2o_context_dispose(h2o_context_t *ctx)
+{
+    h2o_globalconf_t *config = ctx->globalconf;
+    size_t i, j;
+
+    for (i = 0; config->hosts[i] != NULL; ++i) {
+        h2o_hostconf_t *hostconf = config->hosts[i];
+        for (j = 0; j != hostconf->paths.size; ++j) {
+            h2o_pathconf_t *pathconf = hostconf->paths.entries + j;
+            h2o_context_dispose_pathconf_context(ctx, pathconf);
+        }
+        h2o_context_dispose_pathconf_context(ctx, &hostconf->fallback_path);
+    }
+    free(ctx->_pathconfs_inited.entries);
+    free(ctx->_module_configs);
+    h2o_timeout_dispose(ctx->loop, &ctx->zero_timeout);
+    h2o_timeout_dispose(ctx->loop, &ctx->one_sec_timeout);
+    h2o_timeout_dispose(ctx->loop, &ctx->hundred_ms_timeout);
+    h2o_timeout_dispose(ctx->loop, &ctx->handshake_timeout);
+    h2o_timeout_dispose(ctx->loop, &ctx->http1.req_timeout);
+    h2o_timeout_dispose(ctx->loop, &ctx->http2.idle_timeout);
+    h2o_timeout_dispose(ctx->loop, &ctx->http2.graceful_shutdown_timeout);
+    h2o_timeout_dispose(ctx->loop, &ctx->http2.dos_delay_timeout);
+    h2o_timeout_dispose(ctx->loop, &ctx->proxy.io_timeout);
+    /* what should we do here? assert(!h2o_linklist_is_empty(&ctx->http2._conns); */
+
+    h2o_filecache_destroy(ctx->filecache);
+    ctx->filecache = NULL;
+
+    /* clear storage */
+    for (i = 0; i != ctx->storage.size; ++i) {
+        h2o_context_storage_item_t *item = ctx->storage.entries + i;
+        if (item->dispose != NULL) {
+            item->dispose(item->data);
+        }
+    }
+    free(ctx->storage.entries);
+
+    /* TODO assert that the all the getaddrinfo threads are idle */
+    h2o_multithread_unregister_receiver(ctx->queue, &ctx->receivers.hostinfo_getaddr);
+    h2o_multithread_destroy_queue(ctx->queue);
+
+    if (ctx->_timestamp_cache.value != NULL)
+        h2o_mem_release_shared(ctx->_timestamp_cache.value);
+
+#if H2O_USE_LIBUV
+    /* make sure the handles released by h2o_timeout_dispose get freed */
+    uv_run(ctx->loop, UV_RUN_NOWAIT);
+#endif
+}
+
+void h2o_context_request_shutdown(h2o_context_t *ctx)
+{
+    ctx->shutdown_requested = 1;
+    if (ctx->globalconf->http1.callbacks.request_shutdown != NULL)
+        ctx->globalconf->http1.callbacks.request_shutdown(ctx);
+    if (ctx->globalconf->http2.callbacks.request_shutdown != NULL)
+        ctx->globalconf->http2.callbacks.request_shutdown(ctx);
+}
+
+void h2o_context_update_timestamp_cache(h2o_context_t *ctx)
+{
+    time_t prev_sec = ctx->_timestamp_cache.tv_at.tv_sec;
+    ctx->_timestamp_cache.uv_now_at = h2o_now(ctx->loop);
+    gettimeofday(&ctx->_timestamp_cache.tv_at, NULL);
+    if (ctx->_timestamp_cache.tv_at.tv_sec != prev_sec) {
+        struct tm gmt;
+        /* update the string cache */
+        if (ctx->_timestamp_cache.value != NULL)
+            h2o_mem_release_shared(ctx->_timestamp_cache.value);
+        ctx->_timestamp_cache.value = h2o_mem_alloc_shared(NULL, sizeof(h2o_timestamp_string_t), NULL);
+        gmtime_r(&ctx->_timestamp_cache.tv_at.tv_sec, &gmt);
+        h2o_time2str_rfc1123(ctx->_timestamp_cache.value->rfc1123, &gmt);
+        h2o_time2str_log(ctx->_timestamp_cache.value->log, ctx->_timestamp_cache.tv_at.tv_sec);
+    }
+}
diff --git a/debian/vendor-h2o/lib/core/headers.c b/debian/vendor-h2o/lib/core/headers.c
new file mode 100644
index 0000000..d311836
--- /dev/null
+++ b/debian/vendor-h2o/lib/core/headers.c
@@ -0,0 +1,155 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <stddef.h>
+#include <stdio.h>
+#include "h2o.h"
+
+static void add_header(h2o_mem_pool_t *pool, h2o_headers_t *headers, h2o_iovec_t *name, const char *orig_name, const char *value,
+                       size_t value_len)
+{
+    h2o_header_t *slot;
+
+    h2o_vector_reserve(pool, headers, headers->size + 1);
+    slot = headers->entries + headers->size++;
+
+    slot->name = name;
+    slot->value.base = (char *)value;
+    slot->value.len = value_len;
+    slot->orig_name = orig_name ? h2o_strdup(pool, orig_name, name->len).base : NULL;
+}
+
+ssize_t h2o_find_header(const h2o_headers_t *headers, const h2o_token_t *token, ssize_t cursor)
+{
+    for (++cursor; cursor < headers->size; ++cursor) {
+        if (headers->entries[cursor].name == &token->buf) {
+            return cursor;
+        }
+    }
+    return -1;
+}
+
+ssize_t h2o_find_header_by_str(const h2o_headers_t *headers, const char *name, size_t name_len, ssize_t cursor)
+{
+    for (++cursor; cursor < headers->size; ++cursor) {
+        h2o_header_t *t = headers->entries + cursor;
+        if (h2o_memis(t->name->base, t->name->len, name, name_len)) {
+            return cursor;
+        }
+    }
+    return -1;
+}
+
+void h2o_add_header(h2o_mem_pool_t *pool, h2o_headers_t *headers, const h2o_token_t *token, const char *orig_name,
+                    const char *value, size_t value_len)
+{
+    add_header(pool, headers, (h2o_iovec_t *)&token->buf, orig_name, value, value_len);
+}
+
+void h2o_add_header_by_str(h2o_mem_pool_t *pool, h2o_headers_t *headers, const char *name, size_t name_len, int maybe_token,
+                           const char *orig_name, const char *value, size_t value_len)
+{
+    h2o_iovec_t *name_buf;
+
+    if (maybe_token) {
+        const h2o_token_t *token = h2o_lookup_token(name, name_len);
+        if (token != NULL) {
+            add_header(pool, headers, (h2o_iovec_t *)token, orig_name, value, value_len);
+            return;
+        }
+    }
+    name_buf = h2o_mem_alloc_pool(pool, sizeof(h2o_iovec_t));
+    name_buf->base = (char *)name;
+    name_buf->len = name_len;
+    add_header(pool, headers, name_buf, orig_name, value, value_len);
+}
+
+void h2o_set_header(h2o_mem_pool_t *pool, h2o_headers_t *headers, const h2o_token_t *token, const char *value, size_t value_len,
+                    int overwrite_if_exists)
+{
+    ssize_t cursor = h2o_find_header(headers, token, -1);
+    if (cursor != -1) {
+        if (overwrite_if_exists) {
+            h2o_iovec_t *slot = &headers->entries[cursor].value;
+            slot->base = (char *)value;
+            slot->len = value_len;
+        }
+    } else {
+        h2o_add_header(pool, headers, token, NULL, value, value_len);
+    }
+}
+
+void h2o_set_header_by_str(h2o_mem_pool_t *pool, h2o_headers_t *headers, const char *name, size_t name_len, int maybe_token,
+                           const char *value, size_t value_len, int overwrite_if_exists)
+{
+    ssize_t cursor;
+
+    if (maybe_token) {
+        const h2o_token_t *token = h2o_lookup_token(name, name_len);
+        if (token != NULL) {
+            h2o_set_header(pool, headers, token, value, value_len, overwrite_if_exists);
+            return;
+        }
+    }
+
+    cursor = h2o_find_header_by_str(headers, name, name_len, -1);
+    if (cursor != -1) {
+        if (overwrite_if_exists) {
+            h2o_iovec_t *slot = &headers->entries[cursor].value;
+            slot->base = (char *)value;
+            slot->len = value_len;
+        }
+    } else {
+        h2o_iovec_t *name_buf = h2o_mem_alloc_pool(pool, sizeof(h2o_iovec_t));
+        name_buf->base = (char *)name;
+        name_buf->len = name_len;
+        add_header(pool, headers, name_buf, NULL, value, value_len);
+    }
+}
+
+void h2o_set_header_token(h2o_mem_pool_t *pool, h2o_headers_t *headers, const h2o_token_t *token, const char *value,
+                          size_t value_len)
+{
+    h2o_header_t *dest = NULL;
+    size_t i;
+    for (i = 0; i != headers->size; ++i) {
+        if (headers->entries[i].name == &token->buf) {
+            if (h2o_contains_token(headers->entries[i].value.base, headers->entries[i].value.len, value, value_len, ','))
+                return;
+            dest = headers->entries + i;
+        }
+    }
+    if (dest != NULL) {
+        dest->value = h2o_concat(pool, dest->value, h2o_iovec_init(H2O_STRLIT(", ")), h2o_iovec_init(value, value_len));
+    } else {
+        h2o_add_header(pool, headers, token, NULL, value, value_len);
+    }
+}
+
+ssize_t h2o_delete_header(h2o_headers_t *headers, ssize_t cursor)
+{
+    assert(cursor != -1);
+
+    --headers->size;
+    memmove(headers->entries + cursor, headers->entries + cursor + 1, sizeof(h2o_header_t) * (headers->size - cursor));
+
+    return cursor;
+}
diff --git a/debian/vendor-h2o/lib/core/logconf.c b/debian/vendor-h2o/lib/core/logconf.c
new file mode 100644
index 0000000..4d79736
--- /dev/null
+++ b/debian/vendor-h2o/lib/core/logconf.c
@@ -0,0 +1,793 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "h2o.h"
+
+enum {
+    ELEMENT_TYPE_EMPTY,                         /* empty element (with suffix only) */
+    ELEMENT_TYPE_LOCAL_ADDR,                    /* %A */
+    ELEMENT_TYPE_BYTES_SENT,                    /* %b */
+    ELEMENT_TYPE_PROTOCOL,                      /* %H */
+    ELEMENT_TYPE_REMOTE_ADDR,                   /* %h */
+    ELEMENT_TYPE_LOGNAME,                       /* %l */
+    ELEMENT_TYPE_METHOD,                        /* %m */
+    ELEMENT_TYPE_LOCAL_PORT,                    /* %p, %{local}p */
+    ELEMENT_TYPE_REMOTE_PORT,                   /* %{remote}p */
+    ELEMENT_TYPE_ENV_VAR,                       /* %{..}e */
+    ELEMENT_TYPE_QUERY,                         /* %q */
+    ELEMENT_TYPE_REQUEST_LINE,                  /* %r */
+    ELEMENT_TYPE_STATUS,                        /* %s */
+    ELEMENT_TYPE_TIMESTAMP,                     /* %t */
+    ELEMENT_TYPE_TIMESTAMP_STRFTIME,            /* %{...}t */
+    ELEMENT_TYPE_TIMESTAMP_SEC_SINCE_EPOCH,     /* %{sec}t */
+    ELEMENT_TYPE_TIMESTAMP_MSEC_SINCE_EPOCH,    /* %{msec}t */
+    ELEMENT_TYPE_TIMESTAMP_USEC_SINCE_EPOCH,    /* %{usec}t */
+    ELEMENT_TYPE_TIMESTAMP_MSEC_FRAC,           /* %{msec_frac}t */
+    ELEMENT_TYPE_TIMESTAMP_USEC_FRAC,           /* %{usec_frac}t */
+    ELEMENT_TYPE_URL_PATH,                      /* %U */
+    ELEMENT_TYPE_REMOTE_USER,                   /* %u */
+    ELEMENT_TYPE_AUTHORITY,                     /* %V */
+    ELEMENT_TYPE_HOSTCONF,                      /* %v */
+    ELEMENT_TYPE_IN_HEADER_TOKEN,               /* %{data.header_token}i */
+    ELEMENT_TYPE_IN_HEADER_STRING,              /* %{data.name}i */
+    ELEMENT_TYPE_OUT_HEADER_TOKEN,              /* %{data.header_token}o */
+    ELEMENT_TYPE_OUT_HEADER_STRING,             /* %{data.name}o */
+    ELEMENT_TYPE_OUT_HEADER_TOKEN_CONCATENATED, /* %{data.header_token}o */
+    ELEMENT_TYPE_EXTENDED_VAR,                  /* %{data.name}x */
+    ELEMENT_TYPE_CONNECTION_ID,                 /* %{connection-id}x */
+    ELEMENT_TYPE_CONNECT_TIME,                  /* %{connect-time}x */
+    ELEMENT_TYPE_REQUEST_HEADER_TIME,           /* %{request-header-time}x */
+    ELEMENT_TYPE_REQUEST_BODY_TIME,             /* %{request-body-time}x */
+    ELEMENT_TYPE_REQUEST_TOTAL_TIME,            /* %{request-total-time}x */
+    ELEMENT_TYPE_PROCESS_TIME,                  /* %{process-time}x */
+    ELEMENT_TYPE_RESPONSE_TIME,                 /* %{response-total-time}x */
+    ELEMENT_TYPE_DURATION,                      /* %{duration}x */
+    ELEMENT_TYPE_ERROR,                         /* %{error}x */
+    ELEMENT_TYPE_PROTOCOL_SPECIFIC,             /* %{protocol-specific...}x */
+    NUM_ELEMENT_TYPES
+};
+
+struct log_element_t {
+    unsigned type;
+    h2o_iovec_t suffix;
+    union {
+        const h2o_token_t *header_token;
+        h2o_iovec_t name;
+        size_t protocol_specific_callback_index;
+    } data;
+    unsigned magically_quoted_json : 1; /* whether to omit surrounding doublequotes when the output is null */
+    unsigned original_response : 1;
+};
+
+struct st_h2o_logconf_t {
+    H2O_VECTOR(struct log_element_t) elements;
+    int escape;
+};
+
+static h2o_iovec_t strdup_lowercased(const char *s, size_t len)
+{
+    h2o_iovec_t v = h2o_strdup(NULL, s, len);
+    h2o_strtolower(v.base, v.len);
+    return v;
+}
+
+static int determine_magicquote_nodes(h2o_logconf_t *logconf, char *errbuf)
+{
+    size_t element_index;
+    int quote_char = '\0'; /* the quote char being used if the state machine is within a string literal */
+    int just_in = 0;       /* if we just went into the string literal */
+
+    for (element_index = 0; element_index < logconf->elements.size; ++element_index) {
+        h2o_iovec_t suffix = logconf->elements.entries[element_index].suffix;
+        logconf->elements.entries[element_index].magically_quoted_json = just_in && suffix.len != 0 && suffix.base[0] == quote_char;
+
+        just_in = 0;
+
+        size_t i;
+        for (i = 0; i < suffix.len; ++i) {
+            just_in = 0;
+            if (quote_char != '\0') {
+                if (quote_char == suffix.base[i]) {
+                    /* out of quote? */
+                    size_t j, num_bs = 0;
+                    for (j = i; j != 0; ++num_bs)
+                        if (suffix.base[--j] != '\\')
+                            break;
+                    if (num_bs % 2 == 0)
+                        quote_char = '\0';
+                }
+            } else {
+                if (suffix.base[i] == '"' || suffix.base[i] == '\'') {
+                    quote_char = suffix.base[i];
+                    just_in = 1;
+                }
+            }
+        }
+    }
+
+    return 1;
+}
+
+h2o_logconf_t *h2o_logconf_compile(const char *fmt, int escape, char *errbuf)
+{
+    h2o_logconf_t *logconf = h2o_mem_alloc(sizeof(*logconf));
+    const char *pt = fmt;
+    size_t fmt_len = strlen(fmt);
+
+    *logconf = (h2o_logconf_t){{NULL}, escape};
+
+#define LAST_ELEMENT() (logconf->elements.entries + logconf->elements.size - 1)
+/* suffix buffer is always guaranteed to be larger than the fmt + (sizeof('\n') - 1) (so that they would be no buffer overruns) */
+#define NEW_ELEMENT(ty)                                                                                                            \
+    do {                                                                                                                           \
+        h2o_vector_reserve(NULL, &logconf->elements, logconf->elements.size + 1);                                                  \
+        logconf->elements.size++;                                                                                                  \
+        *LAST_ELEMENT() = (struct log_element_t){0};                                                                               \
+        LAST_ELEMENT()->type = ty;                                                                                                 \
+        LAST_ELEMENT()->suffix.base = h2o_mem_alloc(fmt_len + 1);                                                                  \
+    } while (0)
+
+    while (*pt != '\0') {
+        if (memcmp(pt, "%%", 2) == 0) {
+            ++pt; /* emit % */
+        } else if (*pt == '%') {
+            ++pt;
+            /* handle < and > */
+            int log_original = 0;
+            for (;; ++pt) {
+                if (*pt == '<') {
+                    log_original = 1;
+                } else if (*pt == '>') {
+                    log_original = 0;
+                } else {
+                    break;
+                }
+            }
+            /* handle {...}n */
+            if (*pt == '{') {
+                const h2o_token_t *token;
+                const char *quote_end = strchr(++pt, '}');
+                if (quote_end == NULL) {
+                    sprintf(errbuf, "failed to compile log format: unterminated header name starting at: \"%16s\"", pt);
+                    goto Error;
+                }
+                const char modifier = quote_end[1];
+                switch (modifier) {
+                case 'i':
+                case 'o': {
+                    h2o_iovec_t name = strdup_lowercased(pt, quote_end - pt);
+                    token = h2o_lookup_token(name.base, name.len);
+                    if (token != NULL) {
+                        free(name.base);
+                        if (modifier == 'o' && token == H2O_TOKEN_SET_COOKIE) {
+                            NEW_ELEMENT(ELEMENT_TYPE_OUT_HEADER_TOKEN_CONCATENATED);
+                            LAST_ELEMENT()->data.header_token = token;
+                        } else {
+                            NEW_ELEMENT(modifier == 'i' ? ELEMENT_TYPE_IN_HEADER_TOKEN : ELEMENT_TYPE_OUT_HEADER_TOKEN);
+                            LAST_ELEMENT()->data.header_token = token;
+                        }
+                    } else {
+                        NEW_ELEMENT(modifier == 'i' ? ELEMENT_TYPE_IN_HEADER_STRING : ELEMENT_TYPE_OUT_HEADER_STRING);
+                        LAST_ELEMENT()->data.name = name;
+                    }
+                    LAST_ELEMENT()->original_response = log_original;
+                } break;
+                case 'p':
+                    if (h2o_memis(pt, quote_end - pt, H2O_STRLIT("local"))) {
+                        NEW_ELEMENT(ELEMENT_TYPE_LOCAL_PORT);
+                    } else if (h2o_memis(pt, quote_end - pt, H2O_STRLIT("remote"))) {
+                        NEW_ELEMENT(ELEMENT_TYPE_REMOTE_PORT);
+                    } else {
+                        sprintf(errbuf, "failed to compile log format: unknown specifier for %%{...}p");
+                        goto Error;
+                    }
+                    break;
+                case 'e':
+                    {
+                        h2o_iovec_t name = h2o_strdup(NULL, pt, quote_end - pt);
+                        NEW_ELEMENT(ELEMENT_TYPE_ENV_VAR);
+                        LAST_ELEMENT()->data.name = name;
+                    }
+                    break;
+                case 't':
+                    if (h2o_memis(pt, quote_end - pt, H2O_STRLIT("sec"))) {
+                        NEW_ELEMENT(ELEMENT_TYPE_TIMESTAMP_SEC_SINCE_EPOCH);
+                    } else if (h2o_memis(pt, quote_end - pt, H2O_STRLIT("msec"))) {
+                        NEW_ELEMENT(ELEMENT_TYPE_TIMESTAMP_MSEC_SINCE_EPOCH);
+                    } else if (h2o_memis(pt, quote_end - pt, H2O_STRLIT("usec"))) {
+                        NEW_ELEMENT(ELEMENT_TYPE_TIMESTAMP_USEC_SINCE_EPOCH);
+                    } else if (h2o_memis(pt, quote_end - pt, H2O_STRLIT("msec_frac"))) {
+                        NEW_ELEMENT(ELEMENT_TYPE_TIMESTAMP_MSEC_FRAC);
+                    } else if (h2o_memis(pt, quote_end - pt, H2O_STRLIT("usec_frac"))) {
+                        NEW_ELEMENT(ELEMENT_TYPE_TIMESTAMP_USEC_FRAC);
+                    } else {
+                        h2o_iovec_t name = h2o_strdup(NULL, pt, quote_end - pt);
+                        NEW_ELEMENT(ELEMENT_TYPE_TIMESTAMP_STRFTIME);
+                        LAST_ELEMENT()->data.name = name;
+                    }
+                    break;
+                case 'x':
+#define MAP_EXT_TO_TYPE(name, id)                                                                                                  \
+    if (h2o_lcstris(pt, quote_end - pt, H2O_STRLIT(name))) {                                                                       \
+        NEW_ELEMENT(id);                                                                                                           \
+        goto MAP_EXT_Found;                                                                                                        \
+    }
+#define MAP_EXT_TO_PROTO(name, cb)                                                                                                 \
+    if (h2o_lcstris(pt, quote_end - pt, H2O_STRLIT(name))) {                                                                       \
+        h2o_conn_callbacks_t dummy_;                                                                                               \
+        NEW_ELEMENT(ELEMENT_TYPE_PROTOCOL_SPECIFIC);                                                                               \
+        LAST_ELEMENT()->data.protocol_specific_callback_index =                                                                    \
+            &dummy_.log_.cb - dummy_.log_.callbacks;                                                                               \
+        goto MAP_EXT_Found;                                                                                                        \
+    }
+                    MAP_EXT_TO_TYPE("connection-id", ELEMENT_TYPE_CONNECTION_ID);
+                    MAP_EXT_TO_TYPE("connect-time", ELEMENT_TYPE_CONNECT_TIME);
+                    MAP_EXT_TO_TYPE("request-total-time", ELEMENT_TYPE_REQUEST_TOTAL_TIME);
+                    MAP_EXT_TO_TYPE("request-header-time", ELEMENT_TYPE_REQUEST_HEADER_TIME);
+                    MAP_EXT_TO_TYPE("request-body-time", ELEMENT_TYPE_REQUEST_BODY_TIME);
+                    MAP_EXT_TO_TYPE("process-time", ELEMENT_TYPE_PROCESS_TIME);
+                    MAP_EXT_TO_TYPE("response-time", ELEMENT_TYPE_RESPONSE_TIME);
+                    MAP_EXT_TO_TYPE("duration", ELEMENT_TYPE_DURATION);
+                    MAP_EXT_TO_TYPE("error", ELEMENT_TYPE_ERROR);
+                    MAP_EXT_TO_PROTO("http1.request-index", http1.request_index);
+                    MAP_EXT_TO_PROTO("http2.stream-id", http2.stream_id);
+                    MAP_EXT_TO_PROTO("http2.priority.received", http2.priority_received);
+                    MAP_EXT_TO_PROTO("http2.priority.received.exclusive", http2.priority_received_exclusive);
+                    MAP_EXT_TO_PROTO("http2.priority.received.parent", http2.priority_received_parent);
+                    MAP_EXT_TO_PROTO("http2.priority.received.weight", http2.priority_received_weight);
+                    MAP_EXT_TO_PROTO("http2.priority.actual", http2.priority_actual);
+                    MAP_EXT_TO_PROTO("http2.priority.actual.parent", http2.priority_actual_parent);
+                    MAP_EXT_TO_PROTO("http2.priority.actual.weight", http2.priority_actual_weight);
+                    MAP_EXT_TO_PROTO("ssl.protocol-version", ssl.protocol_version);
+                    MAP_EXT_TO_PROTO("ssl.session-reused", ssl.session_reused);
+                    MAP_EXT_TO_PROTO("ssl.cipher", ssl.cipher);
+                    MAP_EXT_TO_PROTO("ssl.cipher-bits", ssl.cipher_bits);
+                    MAP_EXT_TO_PROTO("ssl.session-id", ssl.session_id);
+                    { /* not found */
+                        h2o_iovec_t name = strdup_lowercased(pt, quote_end - pt);
+                        NEW_ELEMENT(ELEMENT_TYPE_EXTENDED_VAR);
+                        LAST_ELEMENT()->data.name = name;
+                    }
+                MAP_EXT_Found:
+#undef MAP_EXT_TO_TYPE
+#undef MAP_EXT_TO_PROTO
+                    break;
+                default:
+                    sprintf(errbuf, "failed to compile log format: header name is not followed by either `i`, `o`, `x`, `e`");
+                    goto Error;
+                }
+                pt = quote_end + 2;
+                continue;
+            } else {
+                unsigned type = NUM_ELEMENT_TYPES;
+                switch (*pt++) {
+#define TYPE_MAP(ch, ty)                                                                                                           \
+    case ch:                                                                                                                       \
+        type = ty;                                                                                                                 \
+        break
+                    TYPE_MAP('A', ELEMENT_TYPE_LOCAL_ADDR);
+                    TYPE_MAP('b', ELEMENT_TYPE_BYTES_SENT);
+                    TYPE_MAP('H', ELEMENT_TYPE_PROTOCOL);
+                    TYPE_MAP('h', ELEMENT_TYPE_REMOTE_ADDR);
+                    TYPE_MAP('l', ELEMENT_TYPE_LOGNAME);
+                    TYPE_MAP('m', ELEMENT_TYPE_METHOD);
+                    TYPE_MAP('p', ELEMENT_TYPE_LOCAL_PORT);
+                    TYPE_MAP('e', ELEMENT_TYPE_ENV_VAR);
+                    TYPE_MAP('q', ELEMENT_TYPE_QUERY);
+                    TYPE_MAP('r', ELEMENT_TYPE_REQUEST_LINE);
+                    TYPE_MAP('s', ELEMENT_TYPE_STATUS);
+                    TYPE_MAP('t', ELEMENT_TYPE_TIMESTAMP);
+                    TYPE_MAP('U', ELEMENT_TYPE_URL_PATH);
+                    TYPE_MAP('u', ELEMENT_TYPE_REMOTE_USER);
+                    TYPE_MAP('V', ELEMENT_TYPE_AUTHORITY);
+                    TYPE_MAP('v', ELEMENT_TYPE_HOSTCONF);
+#undef TYPE_MAP
+                default:
+                    sprintf(errbuf, "failed to compile log format: unknown escape sequence: %%%c", pt[-1]);
+                    goto Error;
+                }
+                NEW_ELEMENT(type);
+                LAST_ELEMENT()->original_response = log_original;
+                continue;
+            }
+        }
+        /* emit current char */
+        if (logconf->elements.size == 0)
+            NEW_ELEMENT(ELEMENT_TYPE_EMPTY);
+        LAST_ELEMENT()->suffix.base[LAST_ELEMENT()->suffix.len++] = *pt++;
+    }
+
+    /* emit end-of-line */
+    if (logconf->elements.size == 0)
+        NEW_ELEMENT(ELEMENT_TYPE_EMPTY);
+    LAST_ELEMENT()->suffix.base[LAST_ELEMENT()->suffix.len++] = '\n';
+
+#undef NEW_ELEMENT
+#undef LAST_ELEMENT
+
+    if (escape == H2O_LOGCONF_ESCAPE_JSON) {
+        if (!determine_magicquote_nodes(logconf, errbuf))
+            goto Error;
+    }
+
+    return logconf;
+
+Error:
+    h2o_logconf_dispose(logconf);
+    return NULL;
+}
+
+void h2o_logconf_dispose(h2o_logconf_t *logconf)
+{
+    size_t i;
+
+    for (i = 0; i != logconf->elements.size; ++i) {
+        free(logconf->elements.entries[i].suffix.base);
+        switch (logconf->elements.entries[i].type) {
+        case ELEMENT_TYPE_EXTENDED_VAR:
+        case ELEMENT_TYPE_IN_HEADER_STRING:
+        case ELEMENT_TYPE_OUT_HEADER_STRING:
+        case ELEMENT_TYPE_TIMESTAMP_STRFTIME:
+            free(logconf->elements.entries[i].data.name.base);
+            break;
+        default:
+            break;
+        }
+    }
+    free(logconf->elements.entries);
+    free(logconf);
+}
+
+static inline char *append_safe_string(char *pos, const char *src, size_t len)
+{
+    memcpy(pos, src, len);
+    return pos + len;
+}
+
+static char *append_unsafe_string_apache(char *pos, const char *src, size_t len)
+{
+    const char *src_end = src + len;
+
+    for (; src != src_end; ++src) {
+        if (' ' <= *src && *src < 0x7d && *src != '"') {
+            *pos++ = *src;
+        } else {
+            *pos++ = '\\';
+            *pos++ = 'x';
+            *pos++ = ("0123456789abcdef")[(*src >> 4) & 0xf];
+            *pos++ = ("0123456789abcdef")[*src & 0xf];
+        }
+    }
+
+    return pos;
+}
+
+static char *append_unsafe_string_json(char *pos, const char *src, size_t len)
+{
+    const char *src_end = src + len;
+
+    for (; src != src_end; ++src) {
+        if (' ' <= *src && *src < 0x7e) {
+            if (*src == '"' || *src == '\\')
+                *pos++ = '\\';
+            *pos++ = *src;
+        } else {
+            *pos++ = '\\';
+            *pos++ = 'u';
+            *pos++ = '0';
+            *pos++ = '0';
+            *pos++ = ("0123456789abcdef")[(*src >> 4) & 0xf];
+            *pos++ = ("0123456789abcdef")[*src & 0xf];
+        }
+    }
+
+    return pos;
+}
+
+static char *append_addr(char *pos, socklen_t (*cb)(h2o_conn_t *conn, struct sockaddr *sa), h2o_conn_t *conn, h2o_iovec_t nullexpr)
+{
+    struct sockaddr_storage ss;
+    socklen_t sslen;
+
+    if ((sslen = cb(conn, (void *)&ss)) == 0)
+        goto Fail;
+    size_t l = h2o_socket_getnumerichost((void *)&ss, sslen, pos);
+    if (l == SIZE_MAX)
+        goto Fail;
+    pos += l;
+    return pos;
+
+Fail:
+    memcpy(pos, nullexpr.base, nullexpr.len);
+    pos += nullexpr.len;
+    return pos;
+}
+
+static char *append_port(char *pos, socklen_t (*cb)(h2o_conn_t *conn, struct sockaddr *sa), h2o_conn_t *conn, h2o_iovec_t nullexpr)
+{
+    struct sockaddr_storage ss;
+    socklen_t sslen;
+
+    if ((sslen = cb(conn, (void *)&ss)) == 0)
+        goto Fail;
+    int32_t port = h2o_socket_getport((void *)&ss);
+    if (port == -1)
+        goto Fail;
+    pos += sprintf(pos, "%" PRIu16, (uint16_t)port);
+    return pos;
+
+Fail:
+    memcpy(pos, nullexpr.base, nullexpr.len);
+    pos += nullexpr.len;
+    return pos;
+}
+
+#define APPEND_DURATION(pos, name)                                                                                                 \
+    do {                                                                                                                           \
+        int64_t delta_usec;                                                                                                        \
+        if (!h2o_time_compute_##name(req, &delta_usec))                                                                            \
+            goto EmitNull;                                                                                                         \
+        int32_t delta_sec = (int32_t)(delta_usec / (1000 * 1000));                                                                 \
+        delta_usec -= ((int64_t)delta_sec * (1000 * 1000));                                                                        \
+        RESERVE(sizeof(H2O_INT32_LONGEST_STR ".999999") - 1);                                                                      \
+        pos += sprintf(pos, "%" PRId32, delta_sec);                                                                                \
+        if (delta_usec != 0) {                                                                                                     \
+            int i;                                                                                                                 \
+            *pos++ = '.';                                                                                                          \
+            for (i = 5; i >= 0; --i) {                                                                                             \
+                pos[i] = '0' + delta_usec % 10;                                                                                    \
+                delta_usec /= 10;                                                                                                  \
+            }                                                                                                                      \
+            pos += 6;                                                                                                              \
+        }                                                                                                                          \
+    } while (0);
+
+static char *expand_line_buf(char *line, size_t *cur_size, size_t required, int should_realloc)
+{
+    size_t new_size = *cur_size;
+
+    /* determine the new size */
+    do {
+        new_size *= 2;
+    } while (new_size < required);
+
+    /* reallocate */
+    if (!should_realloc) {
+        char *newpt = h2o_mem_alloc(new_size);
+        memcpy(newpt, line, *cur_size);
+        line = newpt;
+    } else {
+        line = h2o_mem_realloc(line, new_size);
+    }
+    *cur_size = new_size;
+
+    return line;
+}
+
+char *h2o_log_request(h2o_logconf_t *logconf, h2o_req_t *req, size_t *len, char *buf)
+{
+    char *line = buf, *pos = line, *line_end = line + *len;
+    h2o_iovec_t nullexpr;
+    char *(*append_unsafe_string)(char *pos, const char *src, size_t len);
+    size_t element_index, unsafe_factor;
+    struct tm localt = {0};
+    int should_realloc_on_expand = 0;
+
+    switch (logconf->escape) {
+    case H2O_LOGCONF_ESCAPE_APACHE:
+        nullexpr = h2o_iovec_init(H2O_STRLIT("-"));
+        append_unsafe_string = append_unsafe_string_apache;
+        unsafe_factor = 4;
+        break;
+    case H2O_LOGCONF_ESCAPE_JSON:
+        nullexpr = h2o_iovec_init(H2O_STRLIT("null"));
+        append_unsafe_string = append_unsafe_string_json;
+        unsafe_factor = 6;
+        break;
+    default:
+        h2o_fatal("unexpected escape mode");
+        break;
+    }
+
+    for (element_index = 0; element_index != logconf->elements.size; ++element_index) {
+        struct log_element_t *element = logconf->elements.entries + element_index;
+
+/* reserve capacity + suffix.len */
+#define RESERVE(capacity)                                                                                                          \
+    do {                                                                                                                           \
+        if ((capacity) + element->suffix.len > line_end - pos) {                                                                   \
+            size_t off = pos - line;                                                                                               \
+            size_t size = line_end - line;                                                                                         \
+            line = expand_line_buf(line, &size, off + (capacity) + element->suffix.len, should_realloc_on_expand);                 \
+            pos = line + off;                                                                                                      \
+            line_end = line + size;                                                                                                \
+            should_realloc_on_expand = 1;                                                                                          \
+        }                                                                                                                          \
+    } while (0)
+
+        switch (element->type) {
+        case ELEMENT_TYPE_EMPTY:
+            RESERVE(0);
+            break;
+        case ELEMENT_TYPE_LOCAL_ADDR: /* %A */
+            RESERVE(NI_MAXHOST);
+            pos = append_addr(pos, req->conn->callbacks->get_sockname, req->conn, nullexpr);
+            break;
+        case ELEMENT_TYPE_BYTES_SENT: /* %b */
+            RESERVE(sizeof(H2O_UINT64_LONGEST_STR) - 1);
+            pos += sprintf(pos, "%" PRIu64, (uint64_t)req->bytes_sent);
+            break;
+        case ELEMENT_TYPE_PROTOCOL: /* %H */
+            RESERVE(sizeof("HTTP/1.1"));
+            pos += h2o_stringify_protocol_version(pos, req->version);
+            break;
+        case ELEMENT_TYPE_REMOTE_ADDR: /* %h */
+            RESERVE(NI_MAXHOST);
+            pos = append_addr(pos, req->conn->callbacks->get_peername, req->conn, nullexpr);
+            break;
+        case ELEMENT_TYPE_METHOD: /* %m */
+            RESERVE(req->input.method.len * unsafe_factor);
+            pos = append_unsafe_string(pos, req->input.method.base, req->input.method.len);
+            break;
+        case ELEMENT_TYPE_LOCAL_PORT: /* %p */
+            RESERVE(sizeof(H2O_UINT16_LONGEST_STR) - 1);
+            pos = append_port(pos, req->conn->callbacks->get_sockname, req->conn, nullexpr);
+            break;
+        case ELEMENT_TYPE_REMOTE_PORT: /* %{remote}p */
+            RESERVE(sizeof(H2O_UINT16_LONGEST_STR) - 1);
+            pos = append_port(pos, req->conn->callbacks->get_peername, req->conn, nullexpr);
+            break;
+        case ELEMENT_TYPE_ENV_VAR:  /* %{..}e */  {
+            h2o_iovec_t *env_var = h2o_req_getenv(req, element->data.name.base, element->data.name.len, 0);
+            if (env_var == NULL)
+                goto EmitNull;
+            RESERVE(env_var->len * unsafe_factor);
+            pos = append_safe_string(pos, env_var->base, env_var->len);
+            } break;
+        case ELEMENT_TYPE_QUERY: /* %q */
+            if (req->input.query_at != SIZE_MAX) {
+                size_t len = req->input.path.len - req->input.query_at;
+                RESERVE(len * unsafe_factor);
+                pos = append_unsafe_string(pos, req->input.path.base + req->input.query_at, len);
+            }
+            break;
+        case ELEMENT_TYPE_REQUEST_LINE: /* %r */
+            RESERVE((req->input.method.len + req->input.path.len) * unsafe_factor + sizeof("  HTTP/1.1"));
+            pos = append_unsafe_string(pos, req->input.method.base, req->input.method.len);
+            *pos++ = ' ';
+            pos = append_unsafe_string(pos, req->input.path.base, req->input.path.len);
+            *pos++ = ' ';
+            pos += h2o_stringify_protocol_version(pos, req->version);
+            break;
+        case ELEMENT_TYPE_STATUS: /* %s */
+            RESERVE(sizeof(H2O_INT32_LONGEST_STR) - 1);
+            pos += sprintf(pos, "%" PRId32, (int32_t)(element->original_response ? req->res.original.status : req->res.status));
+            break;
+        case ELEMENT_TYPE_TIMESTAMP: /* %t */
+            if (h2o_timeval_is_null(&req->processed_at.at))
+                goto EmitNull;
+            RESERVE(H2O_TIMESTR_LOG_LEN + 2);
+            *pos++ = '[';
+            pos = append_safe_string(pos, req->processed_at.str->log, H2O_TIMESTR_LOG_LEN);
+            *pos++ = ']';
+            break;
+        case ELEMENT_TYPE_TIMESTAMP_STRFTIME: /* %{...}t */
+            if (h2o_timeval_is_null(&req->processed_at.at))
+                goto EmitNull;
+            {
+                size_t bufsz, len;
+                if (localt.tm_year == 0)
+                    localtime_r(&req->processed_at.at.tv_sec, &localt);
+                for (bufsz = 128;; bufsz *= 2) {
+                    RESERVE(bufsz);
+                    if ((len = strftime(pos, bufsz, element->data.name.base, &localt)) != 0)
+                        break;
+                }
+                pos += len;
+            }
+            break;
+        case ELEMENT_TYPE_TIMESTAMP_SEC_SINCE_EPOCH: /* %{sec}t */
+            if (h2o_timeval_is_null(&req->processed_at.at))
+                goto EmitNull;
+            RESERVE(sizeof(H2O_UINT32_LONGEST_STR) - 1);
+            pos += sprintf(pos, "%" PRIu32, (uint32_t)req->processed_at.at.tv_sec);
+            break;
+        case ELEMENT_TYPE_TIMESTAMP_MSEC_SINCE_EPOCH: /* %{msec}t */
+            if (h2o_timeval_is_null(&req->processed_at.at))
+                goto EmitNull;
+            RESERVE(sizeof(H2O_UINT64_LONGEST_STR) - 1);
+            pos += sprintf(pos, "%" PRIu64,
+                           (uint64_t)req->processed_at.at.tv_sec * 1000 + (uint64_t)req->processed_at.at.tv_usec / 1000);
+            break;
+        case ELEMENT_TYPE_TIMESTAMP_USEC_SINCE_EPOCH: /* %{usec}t */
+            if (h2o_timeval_is_null(&req->processed_at.at))
+                goto EmitNull;
+            RESERVE(sizeof(H2O_UINT64_LONGEST_STR) - 1);
+            pos +=
+                sprintf(pos, "%" PRIu64, (uint64_t)req->processed_at.at.tv_sec * 1000000 + (uint64_t)req->processed_at.at.tv_usec);
+            break;
+        case ELEMENT_TYPE_TIMESTAMP_MSEC_FRAC: /* %{msec_frac}t */
+            if (h2o_timeval_is_null(&req->processed_at.at))
+                goto EmitNull;
+            RESERVE(3);
+            pos += sprintf(pos, "%03u", (unsigned)(req->processed_at.at.tv_usec / 1000));
+            break;
+        case ELEMENT_TYPE_TIMESTAMP_USEC_FRAC: /* %{usec_frac}t */
+            if (h2o_timeval_is_null(&req->processed_at.at))
+                goto EmitNull;
+            RESERVE(6);
+            pos += sprintf(pos, "%06u", (unsigned)req->processed_at.at.tv_usec);
+            break;
+        case ELEMENT_TYPE_URL_PATH: /* %U */ {
+            size_t path_len = req->input.query_at == SIZE_MAX ? req->input.path.len : req->input.query_at;
+            RESERVE(path_len * unsafe_factor);
+            pos = append_unsafe_string(pos, req->input.path.base, path_len);
+        } break;
+        case ELEMENT_TYPE_REMOTE_USER: /* %u */ {
+            h2o_iovec_t *remote_user = h2o_req_getenv(req, H2O_STRLIT("REMOTE_USER"), 0);
+            if (remote_user == NULL)
+                goto EmitNull;
+            RESERVE(remote_user->len * unsafe_factor);
+            pos = append_unsafe_string(pos, remote_user->base, remote_user->len);
+        } break;
+        case ELEMENT_TYPE_AUTHORITY: /* %V */
+            RESERVE(req->input.authority.len * unsafe_factor);
+            pos = append_unsafe_string(pos, req->input.authority.base, req->input.authority.len);
+            break;
+        case ELEMENT_TYPE_HOSTCONF: /* %v */
+            RESERVE(req->hostconf->authority.hostport.len * unsafe_factor);
+            pos = append_unsafe_string(pos, req->hostconf->authority.hostport.base, req->hostconf->authority.hostport.len);
+            break;
+
+#define EMIT_HEADER(__headers, concat, findfunc, ...)                                                                              \
+    do {                                                                                                                           \
+        h2o_headers_t *headers = (__headers);                                                                                      \
+        ssize_t index = -1;                                                                                                        \
+        int found = 0;                                                                                                             \
+        while ((index = (findfunc)(headers, __VA_ARGS__, index)) != -1) {                                                          \
+            if (found) {                                                                                                           \
+                RESERVE(2);                                                                                                        \
+                *pos++ = ',';                                                                                                      \
+                *pos++ = ' ';                                                                                                      \
+            } else {                                                                                                               \
+                found = 1;                                                                                                         \
+            }                                                                                                                      \
+            const h2o_header_t *header = headers->entries + index;                                                                 \
+            RESERVE(header->value.len *unsafe_factor);                                                                             \
+            pos = append_unsafe_string(pos, header->value.base, header->value.len);                                                \
+            if (!concat)                                                                                                           \
+                break;                                                                                                             \
+        }                                                                                                                          \
+        if (!found)                                                                                                                \
+            goto EmitNull;                                                                                                         \
+    } while (0)
+
+        case ELEMENT_TYPE_IN_HEADER_TOKEN:
+            EMIT_HEADER(&req->headers, 0, h2o_find_header, element->data.header_token);
+            break;
+        case ELEMENT_TYPE_IN_HEADER_STRING:
+            EMIT_HEADER(&req->headers, 0, h2o_find_header_by_str, element->data.name.base, element->data.name.len);
+            break;
+        case ELEMENT_TYPE_OUT_HEADER_TOKEN:
+            EMIT_HEADER(element->original_response ? &req->res.original.headers : &req->res.headers, 0, h2o_find_header,
+                        element->data.header_token);
+            break;
+        case ELEMENT_TYPE_OUT_HEADER_STRING:
+            EMIT_HEADER(element->original_response ? &req->res.original.headers : &req->res.headers, 0, h2o_find_header_by_str,
+                        element->data.name.base, element->data.name.len);
+            break;
+        case ELEMENT_TYPE_OUT_HEADER_TOKEN_CONCATENATED:
+            EMIT_HEADER(element->original_response ? &req->res.original.headers : &req->res.headers, 1, h2o_find_header,
+                        element->data.header_token);
+            break;
+
+#undef EMIT_HEADER
+
+        case ELEMENT_TYPE_CONNECTION_ID:
+            RESERVE(sizeof(H2O_UINT64_LONGEST_STR) - 1);
+            pos += sprintf(pos, "%" PRIu64, req->conn->id);
+            break;
+
+        case ELEMENT_TYPE_CONNECT_TIME:
+            APPEND_DURATION(pos, connect_time);
+            break;
+
+        case ELEMENT_TYPE_REQUEST_HEADER_TIME:
+            APPEND_DURATION(pos, header_time);
+            break;
+
+        case ELEMENT_TYPE_REQUEST_BODY_TIME:
+            APPEND_DURATION(pos, body_time);
+            break;
+
+        case ELEMENT_TYPE_REQUEST_TOTAL_TIME:
+            APPEND_DURATION(pos, request_total_time);
+            break;
+
+        case ELEMENT_TYPE_PROCESS_TIME:
+            APPEND_DURATION(pos, process_time);
+            break;
+
+        case ELEMENT_TYPE_RESPONSE_TIME:
+            APPEND_DURATION(pos, response_time);
+            break;
+
+        case ELEMENT_TYPE_DURATION:
+            APPEND_DURATION(pos, duration);
+            break;
+
+        case ELEMENT_TYPE_ERROR: {
+            size_t i;
+            for (i = 0; i != req->error_logs.size; ++i) {
+                h2o_req_error_log_t *log = req->error_logs.entries + i;
+                size_t module_len = strlen(log->module);
+                RESERVE(sizeof("[] ") - 1 + module_len + log->msg.len * unsafe_factor);
+                *pos++ = '[';
+                pos = append_safe_string(pos, log->module, module_len);
+                *pos++ = ']';
+                *pos++ = ' ';
+                pos = append_unsafe_string(pos, log->msg.base, log->msg.len);
+            }
+        } break;
+
+        case ELEMENT_TYPE_PROTOCOL_SPECIFIC: {
+            h2o_iovec_t (*cb)(h2o_req_t *) = req->conn->callbacks->log_.callbacks[element->data.protocol_specific_callback_index];
+            if (cb != NULL) {
+                h2o_iovec_t s = cb(req);
+                if (s.base == NULL)
+                    goto EmitNull;
+                RESERVE(s.len);
+                pos = append_safe_string(pos, s.base, s.len);
+            } else {
+                goto EmitNull;
+            }
+        } break;
+
+        case ELEMENT_TYPE_LOGNAME:      /* %l */
+        case ELEMENT_TYPE_EXTENDED_VAR: /* %{...}x */
+        EmitNull:
+            RESERVE(nullexpr.len);
+            /* special case that trims surrounding quotes */
+            if (element->magically_quoted_json) {
+                --pos;
+                pos = append_safe_string(pos, nullexpr.base, nullexpr.len);
+                pos = append_safe_string(pos, element->suffix.base + 1, element->suffix.len - 1);
+                continue;
+            }
+            pos = append_safe_string(pos, nullexpr.base, nullexpr.len);
+            break;
+
+        default:
+            assert(!"unknown type");
+            break;
+        }
+
+#undef RESERVE
+
+        pos = append_safe_string(pos, element->suffix.base, element->suffix.len);
+    }
+
+    *len = pos - line;
+    return line;
+}
diff --git a/debian/vendor-h2o/lib/core/proxy.c b/debian/vendor-h2o/lib/core/proxy.c
new file mode 100644
index 0000000..edb4baf
--- /dev/null
+++ b/debian/vendor-h2o/lib/core/proxy.c
@@ -0,0 +1,610 @@
+/*
+ * Copyright (c) 2014,2015 DeNA Co., Ltd., Kazuho Oku, Masahiro Nagano
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include "picohttpparser.h"
+#include "h2o.h"
+#include "h2o/http1.h"
+#include "h2o/http1client.h"
+#include "h2o/tunnel.h"
+
+struct rp_generator_t {
+    h2o_generator_t super;
+    h2o_req_t *src_req;
+    h2o_http1client_t *client;
+    struct {
+        h2o_iovec_t bufs[2]; /* first buf is the request line and headers, the second is the POST content */
+        int is_head;
+    } up_req;
+    h2o_buffer_t *last_content_before_send;
+    h2o_doublebuffer_t sending;
+    int is_websocket_handshake;
+    int had_body_error; /* set if an error happened while fetching the body so that we can propagate the error */
+};
+
+struct rp_ws_upgrade_info_t {
+    h2o_context_t *ctx;
+    h2o_timeout_t *timeout;
+    h2o_socket_t *upstream_sock;
+};
+
+static h2o_http1client_ctx_t *get_client_ctx(h2o_req_t *req)
+{
+    h2o_req_overrides_t *overrides = req->overrides;
+    if (overrides != NULL && overrides->client_ctx != NULL)
+        return overrides->client_ctx;
+    return &req->conn->ctx->proxy.client_ctx;
+}
+
+static h2o_iovec_t rewrite_location(h2o_mem_pool_t *pool, const char *location, size_t location_len, h2o_url_t *match,
+                                    const h2o_url_scheme_t *req_scheme, h2o_iovec_t req_authority, h2o_iovec_t req_basepath)
+{
+    h2o_url_t loc_parsed;
+
+    if (h2o_url_parse(location, location_len, &loc_parsed) != 0)
+        goto NoRewrite;
+    if (loc_parsed.scheme != &H2O_URL_SCHEME_HTTP)
+        goto NoRewrite;
+    if (!h2o_url_hosts_are_equal(&loc_parsed, match))
+        goto NoRewrite;
+    if (h2o_url_get_port(&loc_parsed) != h2o_url_get_port(match))
+        goto NoRewrite;
+    if (loc_parsed.path.len < match->path.len)
+        goto NoRewrite;
+    if (memcmp(loc_parsed.path.base, match->path.base, match->path.len) != 0)
+        goto NoRewrite;
+
+    return h2o_concat(pool, req_scheme->name, h2o_iovec_init(H2O_STRLIT("://")), req_authority, req_basepath,
+                      h2o_iovec_init(loc_parsed.path.base + match->path.len, loc_parsed.path.len - match->path.len));
+
+NoRewrite:
+    return (h2o_iovec_t){NULL};
+}
+
+static h2o_iovec_t build_request_merge_headers(h2o_mem_pool_t *pool, h2o_iovec_t merged, h2o_iovec_t added, int seperator)
+{
+    if (added.len == 0)
+        return merged;
+    if (merged.len == 0)
+        return added;
+
+    size_t newlen = merged.len + 2 + added.len;
+    char *buf = h2o_mem_alloc_pool(pool, newlen);
+    memcpy(buf, merged.base, merged.len);
+    buf[merged.len] = seperator;
+    buf[merged.len + 1] = ' ';
+    memcpy(buf + merged.len + 2, added.base, added.len);
+    merged.base = buf;
+    merged.len = newlen;
+    return merged;
+}
+
+/*
+ * A request without neither Content-Length or Transfer-Encoding header implies a zero-length request body (see 6th rule of RFC 7230
+ * 3.3.3).
+ * OTOH, section 3.3.3 states:
+ *
+ *   A user agent SHOULD send a Content-Length in a request message when
+ *   no Transfer-Encoding is sent and the request method defines a meaning
+ *   for an enclosed payload body.  For example, a Content-Length header
+ *   field is normally sent in a POST request even when the value is 0
+ *   (indicating an empty payload body).  A user agent SHOULD NOT send a
+ *   Content-Length header field when the request message does not contain
+ *   a payload body and the method semantics do not anticipate such a
+ *   body.
+ *
+ * PUT and POST define a meaning for the payload body, let's emit a
+ * Content-Length header if it doesn't exist already, since the server
+ * might send a '411 Length Required' response.
+ *
+ * see also: ML thread starting at https://lists.w3.org/Archives/Public/ietf-http-wg/2016JulSep/0580.html
+ */
+static int req_requires_content_length(h2o_req_t *req)
+{
+    int is_put_or_post =
+        (req->method.len >= 1 && req->method.base[0] == 'P' && (h2o_memis(req->method.base, req->method.len, H2O_STRLIT("POST")) ||
+                                                                h2o_memis(req->method.base, req->method.len, H2O_STRLIT("PUT"))));
+
+    return is_put_or_post && h2o_find_header(&req->res.headers, H2O_TOKEN_TRANSFER_ENCODING, -1) == -1;
+}
+
+static h2o_iovec_t build_request(h2o_req_t *req, int keepalive, int is_websocket_handshake, int use_proxy_protocol)
+{
+    h2o_iovec_t buf;
+    size_t offset = 0, remote_addr_len = SIZE_MAX;
+    char remote_addr[NI_MAXHOST];
+    struct sockaddr_storage ss;
+    socklen_t sslen;
+    h2o_iovec_t cookie_buf = {NULL}, xff_buf = {NULL}, via_buf = {NULL};
+    int preserve_x_forwarded_proto = req->conn->ctx->globalconf->proxy.preserve_x_forwarded_proto;
+    int emit_x_forwarded_headers = req->conn->ctx->globalconf->proxy.emit_x_forwarded_headers;
+    int emit_via_header = req->conn->ctx->globalconf->proxy.emit_via_header;
+
+    /* for x-f-f */
+    if ((sslen = req->conn->callbacks->get_peername(req->conn, (void *)&ss)) != 0)
+        remote_addr_len = h2o_socket_getnumerichost((void *)&ss, sslen, remote_addr);
+
+    /* build response */
+    buf.len = req->method.len + req->path.len + req->authority.len + 512;
+    if (use_proxy_protocol)
+        buf.len += H2O_PROXY_HEADER_MAX_LENGTH;
+    buf.base = h2o_mem_alloc_pool(&req->pool, buf.len);
+
+#define RESERVE(sz)                                                                                                                \
+    do {                                                                                                                           \
+        size_t required = offset + sz + 4 /* for "\r\n\r\n" */;                                                                    \
+        if (required > buf.len) {                                                                                                  \
+            do {                                                                                                                   \
+                buf.len *= 2;                                                                                                      \
+            } while (required > buf.len);                                                                                          \
+            char *newp = h2o_mem_alloc_pool(&req->pool, buf.len);                                                                  \
+            memcpy(newp, buf.base, offset);                                                                                        \
+            buf.base = newp;                                                                                                       \
+        }                                                                                                                          \
+    } while (0)
+#define APPEND(s, l)                                                                                                               \
+    do {                                                                                                                           \
+        memcpy(buf.base + offset, (s), (l));                                                                                       \
+        offset += (l);                                                                                                             \
+    } while (0)
+#define APPEND_STRLIT(lit) APPEND((lit), sizeof(lit) - 1)
+#define FLATTEN_PREFIXED_VALUE(prefix, value, add_size)                                                                            \
+    do {                                                                                                                           \
+        RESERVE(sizeof(prefix) - 1 + value.len + 2 + add_size);                                                                    \
+        APPEND_STRLIT(prefix);                                                                                                     \
+        if (value.len != 0) {                                                                                                      \
+            APPEND(value.base, value.len);                                                                                         \
+            if (add_size != 0) {                                                                                                   \
+                buf.base[offset++] = ',';                                                                                          \
+                buf.base[offset++] = ' ';                                                                                          \
+            }                                                                                                                      \
+        }                                                                                                                          \
+    } while (0)
+
+    if (use_proxy_protocol)
+        offset += h2o_stringify_proxy_header(req->conn, buf.base + offset);
+
+    APPEND(req->method.base, req->method.len);
+    buf.base[offset++] = ' ';
+    APPEND(req->path.base, req->path.len);
+    APPEND_STRLIT(" HTTP/1.1\r\nconnection: ");
+    if (is_websocket_handshake) {
+        APPEND_STRLIT("upgrade\r\nupgrade: websocket\r\nhost: ");
+    } else if (keepalive) {
+        APPEND_STRLIT("keep-alive\r\nhost: ");
+    } else {
+        APPEND_STRLIT("close\r\nhost: ");
+    }
+    APPEND(req->authority.base, req->authority.len);
+    buf.base[offset++] = '\r';
+    buf.base[offset++] = '\n';
+    assert(offset <= buf.len);
+    if (req->entity.base != NULL || req_requires_content_length(req)) {
+        RESERVE(sizeof("content-length: " H2O_UINT64_LONGEST_STR) - 1);
+        offset += sprintf(buf.base + offset, "content-length: %zu\r\n", req->entity.len);
+    }
+
+    /* rewrite headers if necessary */
+    h2o_headers_t req_headers = req->headers;
+    if (req->overrides != NULL && req->overrides->headers_cmds != NULL) {
+        req_headers.entries = NULL;
+        req_headers.size = 0;
+        req_headers.capacity = 0;
+        h2o_headers_command_t *cmd;
+        h2o_vector_reserve(&req->pool, &req_headers, req->headers.capacity);
+        memcpy(req_headers.entries, req->headers.entries, sizeof(req->headers.entries[0]) * req->headers.size);
+        req_headers.size = req->headers.size;
+        for (cmd = req->overrides->headers_cmds; cmd->cmd != H2O_HEADERS_CMD_NULL; ++cmd)
+            h2o_rewrite_headers(&req->pool, &req_headers, cmd);
+    }
+
+    {
+        const h2o_header_t *h, *h_end;
+        for (h = req_headers.entries, h_end = h + req_headers.size; h != h_end; ++h) {
+            if (h2o_iovec_is_token(h->name)) {
+                const h2o_token_t *token = (void *)h->name;
+                if (token->proxy_should_drop_for_req) {
+                    continue;
+                } else if (token == H2O_TOKEN_COOKIE) {
+                    /* merge the cookie headers; see HTTP/2 8.1.2.5 and HTTP/1 (RFC6265 5.4) */
+                    /* FIXME current algorithm is O(n^2) against the number of cookie headers */
+                    cookie_buf = build_request_merge_headers(&req->pool, cookie_buf, h->value, ';');
+                    continue;
+                } else if (token == H2O_TOKEN_VIA) {
+                    if (!emit_via_header) {
+                        goto AddHeader;
+                    }
+                    via_buf = build_request_merge_headers(&req->pool, via_buf, h->value, ',');
+                    continue;
+                } else if (token == H2O_TOKEN_X_FORWARDED_FOR) {
+                    if (!emit_x_forwarded_headers) {
+                        goto AddHeader;
+                    }
+                    xff_buf = build_request_merge_headers(&req->pool, xff_buf, h->value, ',');
+                    continue;
+                }
+            }
+            if (!preserve_x_forwarded_proto && h2o_lcstris(h->name->base, h->name->len, H2O_STRLIT("x-forwarded-proto")))
+                continue;
+        AddHeader:
+            RESERVE(h->name->len + h->value.len + 2);
+            APPEND(h->orig_name ? h->orig_name : h->name->base, h->name->len);
+            buf.base[offset++] = ':';
+            buf.base[offset++] = ' ';
+            APPEND(h->value.base, h->value.len);
+            buf.base[offset++] = '\r';
+            buf.base[offset++] = '\n';
+        }
+    }
+    if (cookie_buf.len != 0) {
+        FLATTEN_PREFIXED_VALUE("cookie: ", cookie_buf, 0);
+        buf.base[offset++] = '\r';
+        buf.base[offset++] = '\n';
+    }
+    if (emit_x_forwarded_headers) {
+        if (!preserve_x_forwarded_proto) {
+            FLATTEN_PREFIXED_VALUE("x-forwarded-proto: ", req->input.scheme->name, 0);
+            buf.base[offset++] = '\r';
+            buf.base[offset++] = '\n';
+        }
+        if (remote_addr_len != SIZE_MAX) {
+            FLATTEN_PREFIXED_VALUE("x-forwarded-for: ", xff_buf, remote_addr_len);
+            APPEND(remote_addr, remote_addr_len);
+        } else {
+            FLATTEN_PREFIXED_VALUE("x-forwarded-for: ", xff_buf, 0);
+        }
+        buf.base[offset++] = '\r';
+        buf.base[offset++] = '\n';
+    }
+    if (emit_via_header) {
+        FLATTEN_PREFIXED_VALUE("via: ", via_buf, sizeof("1.1 ") - 1 + req->input.authority.len);
+        if (req->version < 0x200) {
+            buf.base[offset++] = '1';
+            buf.base[offset++] = '.';
+            buf.base[offset++] = '0' + (0x100 <= req->version && req->version <= 0x109 ? req->version - 0x100 : 0);
+        } else {
+            buf.base[offset++] = '2';
+        }
+        buf.base[offset++] = ' ';
+        APPEND(req->input.authority.base, req->input.authority.len);
+        buf.base[offset++] = '\r';
+        buf.base[offset++] = '\n';
+    }
+    APPEND_STRLIT("\r\n");
+
+#undef RESERVE
+#undef APPEND
+#undef APPEND_STRLIT
+#undef FLATTEN_PREFIXED_VALUE
+
+    /* set the length */
+    assert(offset <= buf.len);
+    buf.len = offset;
+
+    return buf;
+}
+
+static void do_close(h2o_generator_t *generator, h2o_req_t *req)
+{
+    struct rp_generator_t *self = (void *)generator;
+
+    if (self->client != NULL) {
+        h2o_http1client_cancel(self->client);
+        self->client = NULL;
+    }
+}
+
+static void do_send(struct rp_generator_t *self)
+{
+    h2o_iovec_t vecs[1];
+    size_t veccnt;
+    h2o_send_state_t ststate;
+
+    assert(self->sending.bytes_inflight == 0);
+
+    vecs[0] = h2o_doublebuffer_prepare(&self->sending,
+                                       self->client != NULL ? &self->client->sock->input : &self->last_content_before_send,
+                                       self->src_req->preferred_chunk_size);
+
+    if (self->client == NULL && vecs[0].len == self->sending.buf->size && self->last_content_before_send->size == 0) {
+        veccnt = vecs[0].len != 0 ? 1 : 0;
+        ststate = H2O_SEND_STATE_FINAL;
+    } else {
+        if (vecs[0].len == 0)
+            return;
+        veccnt = 1;
+        ststate = H2O_SEND_STATE_IN_PROGRESS;
+    }
+
+    if (self->had_body_error)
+        ststate = H2O_SEND_STATE_ERROR;
+
+    h2o_send(self->src_req, vecs, veccnt, ststate);
+}
+
+static void do_proceed(h2o_generator_t *generator, h2o_req_t *req)
+{
+    struct rp_generator_t *self = (void *)generator;
+
+    h2o_doublebuffer_consume(&self->sending);
+    do_send(self);
+}
+
+static void on_websocket_upgrade_complete(void *_info, h2o_socket_t *sock, size_t reqsize)
+{
+    struct rp_ws_upgrade_info_t *info = _info;
+
+    if (sock != NULL) {
+        h2o_buffer_consume(&sock->input, reqsize);//It is detached from conn. Let's trash unused data.
+        h2o_tunnel_establish(info->ctx, sock, info->upstream_sock, info->timeout);
+    } else {
+        h2o_socket_close(info->upstream_sock);
+    }
+    free(info);
+}
+
+static inline void on_websocket_upgrade(struct rp_generator_t *self, h2o_timeout_t *timeout, int rlen)
+{
+    h2o_req_t *req = self->src_req;
+    h2o_socket_t *sock = h2o_http1client_steal_socket(self->client);
+    h2o_buffer_consume(&sock->input, rlen);//trash data after stealing sock.
+    struct rp_ws_upgrade_info_t *info = h2o_mem_alloc(sizeof(*info));
+    info->upstream_sock = sock;
+    info->timeout = timeout;
+    info->ctx = req->conn->ctx;
+    h2o_http1_upgrade(req, NULL, 0, on_websocket_upgrade_complete, info);
+}
+
+static int on_body(h2o_http1client_t *client, const char *errstr)
+{
+    struct rp_generator_t *self = client->data;
+
+    if (errstr != NULL) {
+        /* detach the content */
+        self->last_content_before_send = self->client->sock->input;
+        h2o_buffer_init(&self->client->sock->input, &h2o_socket_buffer_prototype);
+        self->client = NULL;
+        if (errstr != h2o_http1client_error_is_eos) {
+            h2o_req_log_error(self->src_req, "lib/core/proxy.c", "%s", errstr);
+            self->had_body_error = 1;
+        }
+    }
+    if (self->sending.bytes_inflight == 0)
+        do_send(self);
+
+    return 0;
+}
+
+static char compress_hint_to_enum(const char *val, size_t len)
+{
+    if (h2o_lcstris(val, len, H2O_STRLIT("on"))) {
+        return H2O_COMPRESS_HINT_ENABLE;
+    }
+    if (h2o_lcstris(val, len, H2O_STRLIT("off"))) {
+        return H2O_COMPRESS_HINT_DISABLE;
+    }
+    return H2O_COMPRESS_HINT_AUTO;
+}
+
+static h2o_http1client_body_cb on_head(h2o_http1client_t *client, const char *errstr, int minor_version, int status,
+                                       h2o_iovec_t msg, h2o_header_t *headers, size_t num_headers, int rlen)
+{
+    struct rp_generator_t *self = client->data;
+    h2o_req_t *req = self->src_req;
+    size_t i;
+
+    if (errstr != NULL && errstr != h2o_http1client_error_is_eos) {
+        self->client = NULL;
+        h2o_req_log_error(req, "lib/core/proxy.c", "%s", errstr);
+        h2o_send_error_502(req, "Gateway Error", errstr, 0);
+        return NULL;
+    }
+
+    /* copy the response (note: all the headers must be copied; http1client discards the input once we return from this callback) */
+    req->res.status = status;
+    req->res.reason = h2o_strdup(&req->pool, msg.base, msg.len).base;
+    for (i = 0; i != num_headers; ++i) {
+        if (h2o_iovec_is_token(headers[i].name)) {
+            const h2o_token_t *token = H2O_STRUCT_FROM_MEMBER(h2o_token_t, buf, headers[i].name);
+            h2o_iovec_t value;
+            if (token->proxy_should_drop_for_res) {
+                goto Skip;
+            }
+            if (token == H2O_TOKEN_CONTENT_LENGTH) {
+                if (req->res.content_length != SIZE_MAX ||
+                    (req->res.content_length = h2o_strtosize(headers[i].value.base, headers[i].value.len)) == SIZE_MAX) {
+                    self->client = NULL;
+                    h2o_req_log_error(req, "lib/core/proxy.c", "%s", "invalid response from upstream (malformed content-length)");
+                    h2o_send_error_502(req, "Gateway Error", "invalid response from upstream", 0);
+                    return NULL;
+                }
+                goto Skip;
+            } else if (token == H2O_TOKEN_LOCATION) {
+                if (req->res_is_delegated && (300 <= status && status <= 399) && status != 304) {
+                    self->client = NULL;
+                    h2o_iovec_t method = h2o_get_redirect_method(req->method, status);
+                    h2o_send_redirect_internal(req, method, headers[i].value.base, headers[i].value.len, 1);
+                    return NULL;
+                }
+                if (req->overrides != NULL && req->overrides->location_rewrite.match != NULL) {
+                    value = rewrite_location(&req->pool, headers[i].value.base, headers[i].value.len,
+                                             req->overrides->location_rewrite.match, req->input.scheme, req->input.authority,
+                                             req->overrides->location_rewrite.path_prefix);
+                    if (value.base != NULL)
+                        goto AddHeader;
+                }
+                goto AddHeaderDuped;
+            } else if (token == H2O_TOKEN_LINK) {
+                h2o_iovec_t new_value;
+                new_value = h2o_push_path_in_link_header(req, headers[i].value.base, headers[i].value.len);
+                if (!new_value.len)
+                    goto Skip;
+                headers[i].value.base = new_value.base;
+                headers[i].value.len = new_value.len;
+            } else if (token == H2O_TOKEN_SERVER) {
+                if (!req->conn->ctx->globalconf->proxy.preserve_server_header)
+                    goto Skip;
+            } else if (token == H2O_TOKEN_X_COMPRESS_HINT) {
+                req->compress_hint = compress_hint_to_enum(headers[i].value.base, headers[i].value.len);
+                goto Skip;
+            }
+        /* default behaviour, transfer the header downstream */
+        AddHeaderDuped:
+            value = h2o_strdup(&req->pool, headers[i].value.base, headers[i].value.len);
+        AddHeader:
+            h2o_add_header(&req->pool, &req->res.headers, token, headers[i].orig_name, value.base, value.len);
+        Skip:;
+        } else {
+            h2o_iovec_t name = h2o_strdup(&req->pool, headers[i].name->base, headers[i].name->len);
+            h2o_iovec_t value = h2o_strdup(&req->pool, headers[i].value.base, headers[i].value.len);
+            h2o_add_header_by_str(&req->pool, &req->res.headers, name.base, name.len, 0, headers[i].orig_name, value.base,
+                                  value.len);
+        }
+    }
+
+    if (self->is_websocket_handshake && req->res.status == 101) {
+        h2o_http1client_ctx_t *client_ctx = get_client_ctx(req);
+        assert(client_ctx->websocket_timeout != NULL);
+        h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_UPGRADE, NULL, H2O_STRLIT("websocket"));
+        on_websocket_upgrade(self, client_ctx->websocket_timeout, rlen);
+        self->client = NULL;
+        return NULL;
+    }
+    /* declare the start of the response */
+    h2o_start_response(req, &self->super);
+
+    if (errstr == h2o_http1client_error_is_eos) {
+        self->client = NULL;
+        h2o_send(req, NULL, 0, H2O_SEND_STATE_FINAL);
+        return NULL;
+    }
+
+    return on_body;
+}
+
+static int on_1xx(h2o_http1client_t *client, int minor_version, int status, h2o_iovec_t msg, h2o_header_t *headers,
+                  size_t num_headers)
+{
+    struct rp_generator_t *self = client->data;
+    size_t i;
+
+    for (i = 0; i != num_headers; ++i) {
+        if (headers[i].name == &H2O_TOKEN_LINK->buf)
+            h2o_push_path_in_link_header(self->src_req, headers[i].value.base, headers[i].value.len);
+    }
+
+    return 0;
+}
+
+static h2o_http1client_head_cb on_connect(h2o_http1client_t *client, const char *errstr, h2o_iovec_t **reqbufs, size_t *reqbufcnt,
+                                          int *method_is_head)
+{
+    struct rp_generator_t *self = client->data;
+
+    if (errstr != NULL) {
+        self->client = NULL;
+        h2o_req_log_error(self->src_req, "lib/core/proxy.c", "%s", errstr);
+        h2o_send_error_502(self->src_req, "Gateway Error", errstr, 0);
+        return NULL;
+    }
+
+    *reqbufs = self->up_req.bufs;
+    *reqbufcnt = self->up_req.bufs[1].base != NULL ? 2 : 1;
+    *method_is_head = self->up_req.is_head;
+    self->client->informational_cb = on_1xx;
+    return on_head;
+}
+
+static void on_generator_dispose(void *_self)
+{
+    struct rp_generator_t *self = _self;
+
+    if (self->client != NULL) {
+        h2o_http1client_cancel(self->client);
+        self->client = NULL;
+    }
+    h2o_buffer_dispose(&self->last_content_before_send);
+    h2o_doublebuffer_dispose(&self->sending);
+}
+
+static struct rp_generator_t *proxy_send_prepare(h2o_req_t *req, int keepalive, int use_proxy_protocol)
+{
+    struct rp_generator_t *self = h2o_mem_alloc_shared(&req->pool, sizeof(*self), on_generator_dispose);
+    h2o_http1client_ctx_t *client_ctx = get_client_ctx(req);
+
+    self->super.proceed = do_proceed;
+    self->super.stop = do_close;
+    self->src_req = req;
+    if (client_ctx->websocket_timeout != NULL && h2o_lcstris(req->upgrade.base, req->upgrade.len, H2O_STRLIT("websocket"))) {
+        self->is_websocket_handshake = 1;
+    } else {
+        self->is_websocket_handshake = 0;
+    }
+    self->had_body_error = 0;
+    self->up_req.bufs[0] = build_request(req, keepalive, self->is_websocket_handshake, use_proxy_protocol);
+    self->up_req.bufs[1] = req->entity;
+    self->up_req.is_head = h2o_memis(req->method.base, req->method.len, H2O_STRLIT("HEAD"));
+    h2o_buffer_init(&self->last_content_before_send, &h2o_socket_buffer_prototype);
+    h2o_doublebuffer_init(&self->sending, &h2o_socket_buffer_prototype);
+
+    return self;
+}
+
+void h2o__proxy_process_request(h2o_req_t *req)
+{
+    h2o_req_overrides_t *overrides = req->overrides;
+    h2o_http1client_ctx_t *client_ctx = get_client_ctx(req);
+    struct rp_generator_t *self;
+
+    if (overrides != NULL) {
+        if (overrides->socketpool != NULL) {
+            if (overrides->use_proxy_protocol)
+                assert(!"proxy protocol cannot be used for a persistent upstream connection");
+            self = proxy_send_prepare(req, 1, 0);
+            h2o_http1client_connect_with_pool(&self->client, self, client_ctx, overrides->socketpool, on_connect);
+            return;
+        } else if (overrides->hostport.host.base != NULL) {
+            self = proxy_send_prepare(req, 0, overrides->use_proxy_protocol);
+            h2o_http1client_connect(&self->client, self, client_ctx, req->overrides->hostport.host, req->overrides->hostport.port,
+                                    0, on_connect);
+            return;
+        }
+    }
+    { /* default logic */
+        h2o_iovec_t host;
+        uint16_t port;
+        if (h2o_url_parse_hostport(req->authority.base, req->authority.len, &host, &port) == NULL) {
+            h2o_req_log_error(req, "lib/core/proxy.c", "invalid URL supplied for internal redirection:%s://%.*s%.*s",
+                              req->scheme->name.base, (int)req->authority.len, req->authority.base, (int)req->path.len,
+                              req->path.base);
+            h2o_send_error_502(req, "Gateway Error", "internal error", 0);
+            return;
+        }
+        if (port == 65535)
+            port = req->scheme->default_port;
+        self = proxy_send_prepare(req, 0, overrides != NULL && overrides->use_proxy_protocol);
+        h2o_http1client_connect(&self->client, self, client_ctx, host, port, req->scheme == &H2O_URL_SCHEME_HTTPS, on_connect);
+        return;
+    }
+}
diff --git a/debian/vendor-h2o/lib/core/request.c b/debian/vendor-h2o/lib/core/request.c
new file mode 100644
index 0000000..96aabb2
--- /dev/null
+++ b/debian/vendor-h2o/lib/core/request.c
@@ -0,0 +1,696 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku, Tatsuhiro Tsujikawa
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/uio.h>
+#include "h2o.h"
+
+#ifndef IOV_MAX
+#define IOV_MAX UIO_MAXIOV
+#endif
+
+#define INITIAL_INBUFSZ 8192
+
+struct st_deferred_request_action_t {
+    h2o_timeout_entry_t timeout;
+    h2o_req_t *req;
+};
+
+struct st_delegate_request_deferred_t {
+    struct st_deferred_request_action_t super;
+    h2o_handler_t *current_handler;
+};
+
+struct st_reprocess_request_deferred_t {
+    struct st_deferred_request_action_t super;
+    h2o_iovec_t method;
+    const h2o_url_scheme_t *scheme;
+    h2o_iovec_t authority;
+    h2o_iovec_t path;
+    h2o_req_overrides_t *overrides;
+    int is_delegated;
+};
+
+struct st_send_error_deferred_t {
+    h2o_req_t *req;
+    int status;
+    const char *reason;
+    const char *body;
+    int flags;
+    h2o_timeout_entry_t _timeout;
+};
+
+static void on_deferred_action_dispose(void *_action)
+{
+    struct st_deferred_request_action_t *action = _action;
+    if (h2o_timeout_is_linked(&action->timeout))
+        h2o_timeout_unlink(&action->timeout);
+}
+
+static struct st_deferred_request_action_t *create_deferred_action(h2o_req_t *req, size_t sz, h2o_timeout_cb cb)
+{
+    struct st_deferred_request_action_t *action = h2o_mem_alloc_shared(&req->pool, sz, on_deferred_action_dispose);
+    *action = (struct st_deferred_request_action_t){{0, cb}, req};
+    h2o_timeout_link(req->conn->ctx->loop, &req->conn->ctx->zero_timeout, &action->timeout);
+    return action;
+}
+
+static h2o_hostconf_t *find_hostconf(h2o_hostconf_t **hostconfs, h2o_iovec_t authority, uint16_t default_port)
+{
+    h2o_iovec_t hostname;
+    uint16_t port;
+    char *hostname_lc;
+
+    /* safe-guard for alloca */
+    if (authority.len >= 65536)
+        return NULL;
+
+    /* extract the specified hostname and port */
+    if (h2o_url_parse_hostport(authority.base, authority.len, &hostname, &port) == NULL)
+        return NULL;
+    if (port == 65535)
+        port = default_port;
+
+    /* convert supplied hostname to lower-case */
+    hostname_lc = alloca(hostname.len);
+    memcpy(hostname_lc, hostname.base, hostname.len);
+    h2o_strtolower(hostname_lc, hostname.len);
+
+    do {
+        h2o_hostconf_t *hostconf = *hostconfs;
+        if (hostconf->authority.port == port || (hostconf->authority.port == 65535 && port == default_port)) {
+            if (hostconf->authority.host.base[0] == '*') {
+                /* matching against "*.foo.bar" */
+                size_t cmplen = hostconf->authority.host.len - 1;
+                if (cmplen < hostname.len &&
+                    memcmp(hostconf->authority.host.base + 1, hostname_lc + hostname.len - cmplen, cmplen) == 0)
+                    return hostconf;
+            } else {
+                /* exact match */
+                if (h2o_memis(hostconf->authority.host.base, hostconf->authority.host.len, hostname_lc, hostname.len))
+                    return hostconf;
+            }
+        }
+    } while (*++hostconfs != NULL);
+
+    return NULL;
+}
+
+static h2o_hostconf_t *setup_before_processing(h2o_req_t *req)
+{
+    h2o_context_t *ctx = req->conn->ctx;
+    h2o_hostconf_t *hostconf;
+
+    h2o_get_timestamp(ctx, &req->pool, &req->processed_at);
+
+    /* find the host context */
+    if (req->input.authority.base != NULL) {
+        if (req->conn->hosts[1] == NULL ||
+            (hostconf = find_hostconf(req->conn->hosts, req->input.authority, req->input.scheme->default_port)) == NULL)
+            hostconf = *req->conn->hosts;
+    } else {
+        /* set the authority name to the default one */
+        hostconf = *req->conn->hosts;
+        req->input.authority = hostconf->authority.hostport;
+    }
+
+    req->scheme = req->input.scheme;
+    req->method = req->input.method;
+    req->authority = req->input.authority;
+    req->path = req->input.path;
+    req->path_normalized =
+        h2o_url_normalize_path(&req->pool, req->input.path.base, req->input.path.len, &req->query_at, &req->norm_indexes);
+    req->input.query_at = req->query_at; /* we can do this since input.path == path */
+
+    return hostconf;
+}
+
+static void call_handlers(h2o_req_t *req, h2o_handler_t **handler)
+{
+    h2o_handler_t **end = req->pathconf->handlers.entries + req->pathconf->handlers.size;
+
+    for (; handler != end; ++handler)
+        if ((*handler)->on_req(*handler, req) == 0)
+            return;
+
+    h2o_send_error_404(req, "File Not Found", "not found", 0);
+}
+
+static void process_hosted_request(h2o_req_t *req, h2o_hostconf_t *hostconf)
+{
+    h2o_pathconf_t *selected_pathconf = &hostconf->fallback_path;
+    size_t i;
+
+    /* setup pathconf, or redirect to "path/" */
+    for (i = 0; i != hostconf->paths.size; ++i) {
+        h2o_pathconf_t *candidate = hostconf->paths.entries + i;
+        if (req->path_normalized.len >= candidate->path.len &&
+            memcmp(req->path_normalized.base, candidate->path.base, candidate->path.len) == 0 &&
+            (candidate->path.base[candidate->path.len - 1] == '/' || req->path_normalized.len == candidate->path.len ||
+             req->path_normalized.base[candidate->path.len] == '/')) {
+            selected_pathconf = candidate;
+            break;
+        }
+    }
+    h2o_req_bind_conf(req, hostconf, selected_pathconf);
+
+    call_handlers(req, req->pathconf->handlers.entries);
+}
+
+static void deferred_proceed_cb(h2o_timeout_entry_t *entry)
+{
+    h2o_req_t *req = H2O_STRUCT_FROM_MEMBER(h2o_req_t, _timeout_entry, entry);
+    h2o_proceed_response(req);
+}
+
+static void close_generator_and_filters(h2o_req_t *req)
+{
+    /* close the generator if it is still open */
+    if (req->_generator != NULL) {
+        /* close generator */
+        if (req->_generator->stop != NULL)
+            req->_generator->stop(req->_generator, req);
+        req->_generator = NULL;
+    }
+    /* close the ostreams still open */
+    while (req->_ostr_top->next != NULL) {
+        if (req->_ostr_top->stop != NULL)
+            req->_ostr_top->stop(req->_ostr_top, req);
+        req->_ostr_top = req->_ostr_top->next;
+    }
+}
+
+static void reset_response(h2o_req_t *req)
+{
+    req->res = (h2o_res_t){0, NULL, SIZE_MAX};
+    req->res.reason = "OK";
+    req->_next_filter_index = 0;
+    req->bytes_sent = 0;
+}
+
+static void retain_original_response(h2o_req_t *req)
+{
+    if (req->res.original.status != 0)
+        return;
+
+    req->res.original.status = req->res.status;
+    h2o_vector_reserve(&req->pool, &req->res.original.headers, req->res.headers.size);
+    h2o_memcpy(req->res.original.headers.entries, req->res.headers.entries,
+               sizeof(req->res.headers.entries[0]) * req->res.headers.size);
+    req->res.original.headers.size = req->res.headers.size;
+}
+
+void h2o_init_request(h2o_req_t *req, h2o_conn_t *conn, h2o_req_t *src)
+{
+    /* clear all memory (expect memory pool, since it is large) */
+    memset(req, 0, offsetof(h2o_req_t, pool));
+
+    /* init memory pool (before others, since it may be used) */
+    h2o_mem_init_pool(&req->pool);
+
+    /* init properties that should be initialized to non-zero */
+    req->conn = conn;
+    req->_timeout_entry.cb = deferred_proceed_cb;
+    req->res.reason = "OK"; /* default to "OK" regardless of the status value, it's not important after all (never sent in HTTP2) */
+    req->res.content_length = SIZE_MAX;
+    req->preferred_chunk_size = SIZE_MAX;
+
+    if (src != NULL) {
+        size_t i;
+#define COPY(buf)                                                                                                                  \
+    do {                                                                                                                           \
+        req->buf.base = h2o_mem_alloc_pool(&req->pool, src->buf.len);                                                              \
+        memcpy(req->buf.base, src->buf.base, src->buf.len);                                                                        \
+        req->buf.len = src->buf.len;                                                                                               \
+    } while (0)
+        COPY(input.authority);
+        COPY(input.method);
+        COPY(input.path);
+        req->input.scheme = src->input.scheme;
+        req->version = src->version;
+        req->entity = src->entity;
+        req->http1_is_persistent = src->http1_is_persistent;
+        req->timestamps = src->timestamps;
+        if (src->upgrade.base != NULL) {
+            COPY(upgrade);
+        } else {
+            req->upgrade.base = NULL;
+            req->upgrade.len = 0;
+        }
+#undef COPY
+        h2o_vector_reserve(&req->pool, &req->headers, src->headers.size);
+        req->headers.size = src->headers.size;
+        for (i = 0; i != src->headers.size; ++i) {
+            h2o_header_t *dst_header = req->headers.entries + i, *src_header = src->headers.entries + i;
+            if (h2o_iovec_is_token(src_header->name)) {
+                dst_header->name = src_header->name;
+            } else {
+                dst_header->name = h2o_mem_alloc_pool(&req->pool, sizeof(*dst_header->name));
+                *dst_header->name = h2o_strdup(&req->pool, src_header->name->base, src_header->name->len);
+            }
+            dst_header->value = h2o_strdup(&req->pool, src_header->value.base, src_header->value.len);
+            if (!src_header->orig_name)
+                dst_header->orig_name = NULL;
+            else
+                dst_header->orig_name = h2o_strdup(&req->pool, src_header->orig_name, src_header->name->len).base;
+        }
+        if (src->env.size != 0) {
+            h2o_vector_reserve(&req->pool, &req->env, src->env.size);
+            req->env.size = src->env.size;
+            for (i = 0; i != req->env.size; ++i)
+                req->env.entries[i] = h2o_strdup(&req->pool, src->env.entries[i].base, src->env.entries[i].len);
+        }
+    }
+}
+
+void h2o_dispose_request(h2o_req_t *req)
+{
+    close_generator_and_filters(req);
+
+    h2o_timeout_unlink(&req->_timeout_entry);
+
+    if (req->version != 0 && req->pathconf != NULL) {
+        h2o_logger_t **logger = req->pathconf->loggers.entries, **end = logger + req->pathconf->loggers.size;
+        for (; logger != end; ++logger) {
+            (*logger)->log_access((*logger), req);
+        }
+    }
+
+    h2o_mem_clear_pool(&req->pool);
+}
+
+void h2o_process_request(h2o_req_t *req)
+{
+    h2o_hostconf_t *hostconf = setup_before_processing(req);
+    process_hosted_request(req, hostconf);
+}
+
+void h2o_delegate_request(h2o_req_t *req, h2o_handler_t *current_handler)
+{
+    h2o_handler_t **handler = req->pathconf->handlers.entries, **end = handler + req->pathconf->handlers.size;
+
+    for (; handler != end; ++handler) {
+        if (*handler == current_handler) {
+            ++handler;
+            break;
+        }
+    }
+    call_handlers(req, handler);
+}
+
+static void on_delegate_request_cb(h2o_timeout_entry_t *entry)
+{
+    struct st_delegate_request_deferred_t *args =
+        H2O_STRUCT_FROM_MEMBER(struct st_delegate_request_deferred_t, super.timeout, entry);
+    h2o_delegate_request(args->super.req, args->current_handler);
+}
+
+void h2o_delegate_request_deferred(h2o_req_t *req, h2o_handler_t *current_handler)
+{
+    struct st_delegate_request_deferred_t *args =
+        (struct st_delegate_request_deferred_t *)create_deferred_action(req, sizeof(*args), on_delegate_request_cb);
+    args->current_handler = current_handler;
+}
+
+void h2o_reprocess_request(h2o_req_t *req, h2o_iovec_t method, const h2o_url_scheme_t *scheme, h2o_iovec_t authority,
+                           h2o_iovec_t path, h2o_req_overrides_t *overrides, int is_delegated)
+{
+    h2o_hostconf_t *hostconf;
+
+    retain_original_response(req);
+
+    /* close generators and filters that are already running */
+    close_generator_and_filters(req);
+
+    /* setup the request/response parameters */
+    req->method = method;
+    req->scheme = scheme;
+    req->authority = authority;
+    req->path = path;
+    req->path_normalized = h2o_url_normalize_path(&req->pool, req->path.base, req->path.len, &req->query_at, &req->norm_indexes);
+    req->overrides = overrides;
+    req->res_is_delegated |= is_delegated;
+    reset_response(req);
+
+    /* check the delegation (or reprocess) counter */
+    if (req->res_is_delegated) {
+        if (req->num_delegated == req->conn->ctx->globalconf->max_delegations) {
+            /* TODO log */
+            h2o_send_error_502(req, "Gateway Error", "too many internal delegations", 0);
+            return;
+        }
+        ++req->num_delegated;
+    } else {
+        if (req->num_reprocessed >= 5) {
+            /* TODO log */
+            h2o_send_error_502(req, "Gateway Error", "too many internal reprocesses", 0);
+            return;
+        }
+        ++req->num_reprocessed;
+    }
+
+    /* handle the response using the handlers, if hostconf exists */
+    h2o_hostconf_t **hosts = is_delegated ? req->conn->ctx->globalconf->hosts : req->conn->hosts;
+    if (req->overrides == NULL && (hostconf = find_hostconf(hosts, req->authority, req->scheme->default_port)) != NULL) {
+        req->pathconf = NULL;
+        process_hosted_request(req, hostconf);
+        return;
+    }
+
+    /* uses the current pathconf, in other words, proxy uses the previous pathconf for building filters */
+    h2o__proxy_process_request(req);
+}
+
+static void on_reprocess_request_cb(h2o_timeout_entry_t *entry)
+{
+    struct st_reprocess_request_deferred_t *args =
+        H2O_STRUCT_FROM_MEMBER(struct st_reprocess_request_deferred_t, super.timeout, entry);
+    h2o_reprocess_request(args->super.req, args->method, args->scheme, args->authority, args->path, args->overrides,
+                          args->is_delegated);
+}
+
+void h2o_reprocess_request_deferred(h2o_req_t *req, h2o_iovec_t method, const h2o_url_scheme_t *scheme, h2o_iovec_t authority,
+                                    h2o_iovec_t path, h2o_req_overrides_t *overrides, int is_delegated)
+{
+    struct st_reprocess_request_deferred_t *args =
+        (struct st_reprocess_request_deferred_t *)create_deferred_action(req, sizeof(*args), on_reprocess_request_cb);
+    args->method = method;
+    args->scheme = scheme;
+    args->authority = authority;
+    args->path = path;
+    args->overrides = overrides;
+    args->is_delegated = is_delegated;
+}
+
+void h2o_start_response(h2o_req_t *req, h2o_generator_t *generator)
+{
+    retain_original_response(req);
+
+    /* set generator */
+    assert(req->_generator == NULL);
+    req->_generator = generator;
+
+    /* setup response filters */
+    if (req->prefilters != NULL) {
+        req->prefilters->on_setup_ostream(req->prefilters, req, &req->_ostr_top);
+    } else {
+        h2o_setup_next_ostream(req, &req->_ostr_top);
+    }
+}
+
+void h2o_send(h2o_req_t *req, h2o_iovec_t *bufs, size_t bufcnt, h2o_send_state_t state)
+{
+    assert(req->_generator != NULL);
+
+    if (!h2o_send_state_is_in_progress(state))
+        req->_generator = NULL;
+
+    req->_ostr_top->do_send(req->_ostr_top, req, bufs, bufcnt, state);
+}
+
+h2o_req_prefilter_t *h2o_add_prefilter(h2o_req_t *req, size_t sz)
+{
+    h2o_req_prefilter_t *prefilter = h2o_mem_alloc_pool(&req->pool, sz);
+    prefilter->next = req->prefilters;
+    req->prefilters = prefilter;
+    return prefilter;
+}
+
+h2o_ostream_t *h2o_add_ostream(h2o_req_t *req, size_t sz, h2o_ostream_t **slot)
+{
+    h2o_ostream_t *ostr = h2o_mem_alloc_pool(&req->pool, sz);
+    ostr->next = *slot;
+    ostr->do_send = NULL;
+    ostr->stop = NULL;
+    ostr->start_pull = NULL;
+
+    *slot = ostr;
+
+    return ostr;
+}
+
+static void apply_env(h2o_req_t *req, h2o_envconf_t *env)
+{
+    size_t i;
+
+    if (env->parent != NULL)
+        apply_env(req, env->parent);
+    for (i = 0; i != env->unsets.size; ++i)
+        h2o_req_unsetenv(req, env->unsets.entries[i].base, env->unsets.entries[i].len);
+    for (i = 0; i != env->sets.size; i += 2)
+        *h2o_req_getenv(req, env->sets.entries[i].base, env->sets.entries[i].len, 1) = env->sets.entries[i + 1];
+}
+
+void h2o_req_bind_conf(h2o_req_t *req, h2o_hostconf_t *hostconf, h2o_pathconf_t *pathconf)
+{
+    req->hostconf = hostconf;
+    req->pathconf = pathconf;
+    if (pathconf->env != NULL)
+        apply_env(req, pathconf->env);
+}
+
+void h2o_ostream_send_next(h2o_ostream_t *ostream, h2o_req_t *req, h2o_iovec_t *bufs, size_t bufcnt, h2o_send_state_t state)
+{
+    if (!h2o_send_state_is_in_progress(state)) {
+        assert(req->_ostr_top == ostream);
+        req->_ostr_top = ostream->next;
+    } else if (bufcnt == 0) {
+        h2o_timeout_link(req->conn->ctx->loop, &req->conn->ctx->zero_timeout, &req->_timeout_entry);
+        return;
+    }
+    ostream->next->do_send(ostream->next, req, bufs, bufcnt, state);
+}
+
+void h2o_req_fill_mime_attributes(h2o_req_t *req)
+{
+    ssize_t content_type_index;
+    h2o_mimemap_type_t *mime;
+
+    if (req->res.mime_attr != NULL)
+        return;
+
+    if ((content_type_index = h2o_find_header(&req->res.headers, H2O_TOKEN_CONTENT_TYPE, -1)) != -1 &&
+        (mime = h2o_mimemap_get_type_by_mimetype(req->pathconf->mimemap, req->res.headers.entries[content_type_index].value, 0)) !=
+            NULL)
+        req->res.mime_attr = &mime->data.attr;
+    else
+        req->res.mime_attr = &h2o_mime_attributes_as_is;
+}
+
+void h2o_send_inline(h2o_req_t *req, const char *body, size_t len)
+{
+    static h2o_generator_t generator = {NULL, NULL};
+
+    h2o_iovec_t buf = h2o_strdup(&req->pool, body, len);
+    /* the function intentionally does not set the content length, since it may be used for generating 304 response, etc. */
+    /* req->res.content_length = buf.len; */
+
+    h2o_start_response(req, &generator);
+
+    if (h2o_memis(req->input.method.base, req->input.method.len, H2O_STRLIT("HEAD")))
+        h2o_send(req, NULL, 0, H2O_SEND_STATE_FINAL);
+    else
+        h2o_send(req, &buf, 1, H2O_SEND_STATE_FINAL);
+}
+
+void h2o_send_error_generic(h2o_req_t *req, int status, const char *reason, const char *body, int flags)
+{
+    if (req->pathconf == NULL) {
+        h2o_hostconf_t *hostconf = setup_before_processing(req);
+        h2o_req_bind_conf(req, hostconf, &hostconf->fallback_path);
+    }
+
+    if ((flags & H2O_SEND_ERROR_HTTP1_CLOSE_CONNECTION) != 0)
+        req->http1_is_persistent = 0;
+
+    req->res.status = status;
+    req->res.reason = reason;
+    req->res.content_length = strlen(body);
+
+    if ((flags & H2O_SEND_ERROR_KEEP_HEADERS) == 0)
+        memset(&req->res.headers, 0, sizeof(req->res.headers));
+
+    h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CONTENT_TYPE, NULL, H2O_STRLIT("text/plain; charset=utf-8"));
+
+    h2o_send_inline(req, body, SIZE_MAX);
+}
+
+#define DECL_SEND_ERROR_DEFERRED(status_)                                                                                          \
+    static void send_error_deferred_cb_##status_(h2o_timeout_entry_t *entry)                                                       \
+    {                                                                                                                              \
+        struct st_send_error_deferred_t *args = H2O_STRUCT_FROM_MEMBER(struct st_send_error_deferred_t, _timeout, entry);          \
+        reset_response(args->req);                                                                                                 \
+        args->req->conn->ctx->emitted_error_status[H2O_STATUS_ERROR_##status_]++;                                                  \
+        h2o_send_error_generic(args->req, args->status, args->reason, args->body, args->flags);                                    \
+    }                                                                                                                              \
+                                                                                                                                   \
+    static void h2o_send_error_deferred_##status_(h2o_req_t *req, const char *reason, const char *body, int flags)                 \
+    {                                                                                                                              \
+        struct st_send_error_deferred_t *args = h2o_mem_alloc_pool(&req->pool, sizeof(*args));                                     \
+        *args = (struct st_send_error_deferred_t){req, status_, reason, body, flags};                                              \
+        args->_timeout.cb = send_error_deferred_cb_##status_;                                                                      \
+        h2o_timeout_link(req->conn->ctx->loop, &req->conn->ctx->zero_timeout, &args->_timeout);                                    \
+    }
+
+DECL_SEND_ERROR_DEFERRED(502)
+
+#undef DECL_SEND_ERROR_DEFERRED
+
+void h2o_req_log_error(h2o_req_t *req, const char *module, const char *fmt, ...)
+{
+#define INITIAL_BUF_SIZE 256
+
+    char *errbuf = h2o_mem_alloc_pool(&req->pool, INITIAL_BUF_SIZE);
+    int errlen;
+    va_list args;
+
+    va_start(args, fmt);
+    errlen = vsnprintf(errbuf, INITIAL_BUF_SIZE, fmt, args);
+    va_end(args);
+
+    if (errlen >= INITIAL_BUF_SIZE) {
+        errbuf = h2o_mem_alloc_pool(&req->pool, errlen + 1);
+        va_start(args, fmt);
+        errlen = vsnprintf(errbuf, errlen + 1, fmt, args);
+        va_end(args);
+    }
+
+#undef INITIAL_BUF_SIZE
+
+    /* save the log */
+    h2o_vector_reserve(&req->pool, &req->error_logs, req->error_logs.size + 1);
+    req->error_logs.entries[req->error_logs.size++] = (h2o_req_error_log_t){module, h2o_iovec_init(errbuf, errlen)};
+
+    if (req->pathconf->error_log.emit_request_errors) {
+        /* build prefix */
+        char *prefix = alloca(sizeof("[] in request::") + 32 + strlen(module)), *p = prefix;
+        p += sprintf(p, "[%s] in request:", module);
+        if (req->path.len < 32) {
+            memcpy(p, req->path.base, req->path.len);
+            p += req->path.len;
+        } else {
+            memcpy(p, req->path.base, 29);
+            p += 29;
+            memcpy(p, "...", 3);
+            p += 3;
+        }
+        *p++ = ':';
+        /* use writev(2) to emit error atomically */
+        struct iovec vecs[] = {{prefix, p - prefix}, {errbuf, errlen}, {"\n", 1}};
+        H2O_BUILD_ASSERT(sizeof(vecs) / sizeof(vecs[0]) < IOV_MAX);
+        writev(2, vecs, sizeof(vecs) / sizeof(vecs[0]));
+    }
+}
+
+void h2o_send_redirect(h2o_req_t *req, int status, const char *reason, const char *url, size_t url_len)
+{
+    if (req->res_is_delegated) {
+        h2o_iovec_t method = h2o_get_redirect_method(req->method, status);
+        h2o_send_redirect_internal(req, method, url, url_len, 0);
+        return;
+    }
+
+    static h2o_generator_t generator = {NULL, NULL};
+    static const h2o_iovec_t body_prefix = {H2O_STRLIT("<!DOCTYPE html><TITLE>Moved</TITLE><P>The document has moved <A HREF=\"")};
+    static const h2o_iovec_t body_suffix = {H2O_STRLIT("\">here</A>")};
+
+    /* build and send response */
+    h2o_iovec_t bufs[3];
+    size_t bufcnt;
+    if (h2o_memis(req->input.method.base, req->input.method.len, H2O_STRLIT("HEAD"))) {
+        req->res.content_length = SIZE_MAX;
+        bufcnt = 0;
+    } else {
+        bufs[0] = body_prefix;
+        bufs[1] = h2o_htmlescape(&req->pool, url, url_len);
+        bufs[2] = body_suffix;
+        bufcnt = 3;
+        req->res.content_length = body_prefix.len + bufs[1].len + body_suffix.len;
+    }
+    req->res.status = status;
+    req->res.reason = reason;
+    req->res.headers = (h2o_headers_t){NULL};
+    h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_LOCATION, NULL, url, url_len);
+    h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CONTENT_TYPE, NULL, H2O_STRLIT("text/html; charset=utf-8"));
+    h2o_start_response(req, &generator);
+    h2o_send(req, bufs, bufcnt, H2O_SEND_STATE_FINAL);
+}
+
+void h2o_send_redirect_internal(h2o_req_t *req, h2o_iovec_t method, const char *url_str, size_t url_len, int preserve_overrides)
+{
+    h2o_url_t url;
+
+    /* parse the location URL */
+    if (h2o_url_parse_relative(url_str, url_len, &url) != 0) {
+        /* TODO log fprintf(stderr, "[proxy] cannot handle location header: %.*s\n", (int)url_len, url); */
+        h2o_send_error_deferred_502(req, "Gateway Error", "internal error", 0);
+        return;
+    }
+    /* convert the location to absolute (while creating copies of the values passed to the deferred call) */
+    if (url.scheme == NULL)
+        url.scheme = req->scheme;
+    if (url.authority.base == NULL) {
+        if (req->hostconf != NULL)
+            url.authority = req->hostconf->authority.hostport;
+        else
+            url.authority = req->authority;
+    } else {
+        if (h2o_lcstris(url.authority.base, url.authority.len, req->authority.base, req->authority.len)) {
+            url.authority = req->authority;
+        } else {
+            url.authority = h2o_strdup(&req->pool, url.authority.base, url.authority.len);
+            preserve_overrides = 0;
+        }
+    }
+    h2o_iovec_t base_path = req->path;
+    h2o_url_resolve_path(&base_path, &url.path);
+    url.path = h2o_concat(&req->pool, base_path, url.path);
+
+    h2o_reprocess_request_deferred(req, method, url.scheme, url.authority, url.path, preserve_overrides ? req->overrides : NULL, 1);
+}
+
+h2o_iovec_t h2o_get_redirect_method(h2o_iovec_t method, int status)
+{
+    if (h2o_memis(method.base, method.len, H2O_STRLIT("POST")) && !(status == 307 || status == 308))
+        method = h2o_iovec_init(H2O_STRLIT("GET"));
+    return method;
+}
+
+h2o_iovec_t h2o_push_path_in_link_header(h2o_req_t *req, const char *value, size_t value_len)
+{
+    int i;
+    h2o_iovec_t ret = h2o_iovec_init(value, value_len);
+    if (req->conn->callbacks->push_path == NULL)
+        return ret;
+
+    h2o_iovec_vector_t paths = h2o_extract_push_path_from_link_header(
+        &req->pool, value, value_len, req->path_normalized, req->input.scheme, req->input.authority,
+        req->res_is_delegated ? req->scheme : NULL, req->res_is_delegated ? &req->authority : NULL, &ret);
+    if (paths.size == 0)
+        return ret;
+
+    for (i = 0; i < paths.size; i++) {
+        req->conn->callbacks->push_path(req, paths.entries[i].base, paths.entries[i].len);
+    }
+    return ret;
+}
diff --git a/debian/vendor-h2o/lib/core/token.c b/debian/vendor-h2o/lib/core/token.c
new file mode 100644
index 0000000..e21ce23
--- /dev/null
+++ b/debian/vendor-h2o/lib/core/token.c
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o.h"
+#include "token_table.h"
+
+int h2o_iovec_is_token(const h2o_iovec_t *buf)
+{
+    return &h2o__tokens[0].buf <= buf && buf <= &h2o__tokens[H2O_MAX_TOKENS - 1].buf;
+}
diff --git a/debian/vendor-h2o/lib/core/token_table.h b/debian/vendor-h2o/lib/core/token_table.h
new file mode 100644
index 0000000..ae26aa6
--- /dev/null
+++ b/debian/vendor-h2o/lib/core/token_table.h
@@ -0,0 +1,408 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the &quot;Software&quot;), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+/* DO NOT EDIT! generated by tokens.pl */
+h2o_token_t h2o__tokens[] = {{{H2O_STRLIT(":authority")}, 1, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT(":method")}, 2, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT(":path")}, 4, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT(":scheme")}, 6, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT(":status")}, 8, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("accept")}, 19, 0, 0, 0, 0, 1, 0},
+                             {{H2O_STRLIT("accept-charset")}, 15, 0, 0, 0, 0, 1, 0},
+                             {{H2O_STRLIT("accept-encoding")}, 16, 0, 0, 0, 0, 1, 0},
+                             {{H2O_STRLIT("accept-language")}, 17, 0, 0, 0, 0, 1, 0},
+                             {{H2O_STRLIT("accept-ranges")}, 18, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("access-control-allow-origin")}, 20, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("age")}, 21, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("allow")}, 22, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("authorization")}, 23, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("cache-control")}, 24, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("cache-digest")}, 0, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("connection")}, 0, 1, 1, 0, 1, 0, 0},
+                             {{H2O_STRLIT("content-disposition")}, 25, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("content-encoding")}, 26, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("content-language")}, 27, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("content-length")}, 28, 0, 0, 1, 0, 0, 0},
+                             {{H2O_STRLIT("content-location")}, 29, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("content-range")}, 30, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("content-type")}, 31, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("cookie")}, 32, 0, 0, 0, 0, 0, 1},
+                             {{H2O_STRLIT("date")}, 33, 0, 1, 0, 0, 0, 0},
+                             {{H2O_STRLIT("etag")}, 34, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("expect")}, 35, 0, 0, 1, 0, 0, 0},
+                             {{H2O_STRLIT("expires")}, 36, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("from")}, 37, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("host")}, 38, 0, 0, 1, 1, 0, 0},
+                             {{H2O_STRLIT("http2-settings")}, 0, 1, 0, 0, 1, 0, 0},
+                             {{H2O_STRLIT("if-match")}, 39, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("if-modified-since")}, 40, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("if-none-match")}, 41, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("if-range")}, 42, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("if-unmodified-since")}, 43, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("keep-alive")}, 0, 1, 1, 0, 0, 0, 0},
+                             {{H2O_STRLIT("last-modified")}, 44, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("link")}, 45, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("location")}, 46, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("max-forwards")}, 47, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("proxy-authenticate")}, 48, 1, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("proxy-authorization")}, 49, 1, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("range")}, 50, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("referer")}, 51, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("refresh")}, 52, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("retry-after")}, 53, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("server")}, 54, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("set-cookie")}, 55, 0, 0, 0, 0, 0, 1},
+                             {{H2O_STRLIT("strict-transport-security")}, 56, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("te")}, 0, 1, 0, 0, 1, 0, 0},
+                             {{H2O_STRLIT("transfer-encoding")}, 57, 1, 1, 1, 1, 0, 0},
+                             {{H2O_STRLIT("upgrade")}, 0, 1, 1, 1, 1, 0, 0},
+                             {{H2O_STRLIT("user-agent")}, 58, 0, 0, 0, 0, 1, 0},
+                             {{H2O_STRLIT("vary")}, 59, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("via")}, 60, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("www-authenticate")}, 61, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("x-compress-hint")}, 0, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("x-forwarded-for")}, 0, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("x-reproxy-url")}, 0, 0, 0, 0, 0, 0, 0},
+                             {{H2O_STRLIT("x-traffic")}, 0, 0, 0, 0, 0, 0, 0}};
+size_t h2o__num_tokens = 62;
+
+const h2o_token_t *h2o_lookup_token(const char *name, size_t len)
+{
+    switch (len) {
+    case 2:
+        switch (name[1]) {
+        case 'e':
+            if (memcmp(name, "t", 1) == 0)
+                return H2O_TOKEN_TE;
+            break;
+        }
+        break;
+    case 3:
+        switch (name[2]) {
+        case 'a':
+            if (memcmp(name, "vi", 2) == 0)
+                return H2O_TOKEN_VIA;
+            break;
+        case 'e':
+            if (memcmp(name, "ag", 2) == 0)
+                return H2O_TOKEN_AGE;
+            break;
+        }
+        break;
+    case 4:
+        switch (name[3]) {
+        case 'e':
+            if (memcmp(name, "dat", 3) == 0)
+                return H2O_TOKEN_DATE;
+            break;
+        case 'g':
+            if (memcmp(name, "eta", 3) == 0)
+                return H2O_TOKEN_ETAG;
+            break;
+        case 'k':
+            if (memcmp(name, "lin", 3) == 0)
+                return H2O_TOKEN_LINK;
+            break;
+        case 'm':
+            if (memcmp(name, "fro", 3) == 0)
+                return H2O_TOKEN_FROM;
+            break;
+        case 't':
+            if (memcmp(name, "hos", 3) == 0)
+                return H2O_TOKEN_HOST;
+            break;
+        case 'y':
+            if (memcmp(name, "var", 3) == 0)
+                return H2O_TOKEN_VARY;
+            break;
+        }
+        break;
+    case 5:
+        switch (name[4]) {
+        case 'e':
+            if (memcmp(name, "rang", 4) == 0)
+                return H2O_TOKEN_RANGE;
+            break;
+        case 'h':
+            if (memcmp(name, ":pat", 4) == 0)
+                return H2O_TOKEN_PATH;
+            break;
+        case 'w':
+            if (memcmp(name, "allo", 4) == 0)
+                return H2O_TOKEN_ALLOW;
+            break;
+        }
+        break;
+    case 6:
+        switch (name[5]) {
+        case 'e':
+            if (memcmp(name, "cooki", 5) == 0)
+                return H2O_TOKEN_COOKIE;
+            break;
+        case 'r':
+            if (memcmp(name, "serve", 5) == 0)
+                return H2O_TOKEN_SERVER;
+            break;
+        case 't':
+            if (memcmp(name, "accep", 5) == 0)
+                return H2O_TOKEN_ACCEPT;
+            if (memcmp(name, "expec", 5) == 0)
+                return H2O_TOKEN_EXPECT;
+            break;
+        }
+        break;
+    case 7:
+        switch (name[6]) {
+        case 'd':
+            if (memcmp(name, ":metho", 6) == 0)
+                return H2O_TOKEN_METHOD;
+            break;
+        case 'e':
+            if (memcmp(name, ":schem", 6) == 0)
+                return H2O_TOKEN_SCHEME;
+            if (memcmp(name, "upgrad", 6) == 0)
+                return H2O_TOKEN_UPGRADE;
+            break;
+        case 'h':
+            if (memcmp(name, "refres", 6) == 0)
+                return H2O_TOKEN_REFRESH;
+            break;
+        case 'r':
+            if (memcmp(name, "refere", 6) == 0)
+                return H2O_TOKEN_REFERER;
+            break;
+        case 's':
+            if (memcmp(name, ":statu", 6) == 0)
+                return H2O_TOKEN_STATUS;
+            if (memcmp(name, "expire", 6) == 0)
+                return H2O_TOKEN_EXPIRES;
+            break;
+        }
+        break;
+    case 8:
+        switch (name[7]) {
+        case 'e':
+            if (memcmp(name, "if-rang", 7) == 0)
+                return H2O_TOKEN_IF_RANGE;
+            break;
+        case 'h':
+            if (memcmp(name, "if-matc", 7) == 0)
+                return H2O_TOKEN_IF_MATCH;
+            break;
+        case 'n':
+            if (memcmp(name, "locatio", 7) == 0)
+                return H2O_TOKEN_LOCATION;
+            break;
+        }
+        break;
+    case 9:
+        switch (name[8]) {
+        case 'c':
+            if (memcmp(name, "x-traffi", 8) == 0)
+                return H2O_TOKEN_X_TRAFFIC;
+            break;
+        }
+        break;
+    case 10:
+        switch (name[9]) {
+        case 'e':
+            if (memcmp(name, "keep-aliv", 9) == 0)
+                return H2O_TOKEN_KEEP_ALIVE;
+            if (memcmp(name, "set-cooki", 9) == 0)
+                return H2O_TOKEN_SET_COOKIE;
+            break;
+        case 'n':
+            if (memcmp(name, "connectio", 9) == 0)
+                return H2O_TOKEN_CONNECTION;
+            break;
+        case 't':
+            if (memcmp(name, "user-agen", 9) == 0)
+                return H2O_TOKEN_USER_AGENT;
+            break;
+        case 'y':
+            if (memcmp(name, ":authorit", 9) == 0)
+                return H2O_TOKEN_AUTHORITY;
+            break;
+        }
+        break;
+    case 11:
+        switch (name[10]) {
+        case 'r':
+            if (memcmp(name, "retry-afte", 10) == 0)
+                return H2O_TOKEN_RETRY_AFTER;
+            break;
+        }
+        break;
+    case 12:
+        switch (name[11]) {
+        case 'e':
+            if (memcmp(name, "content-typ", 11) == 0)
+                return H2O_TOKEN_CONTENT_TYPE;
+            break;
+        case 's':
+            if (memcmp(name, "max-forward", 11) == 0)
+                return H2O_TOKEN_MAX_FORWARDS;
+            break;
+        case 't':
+            if (memcmp(name, "cache-diges", 11) == 0)
+                return H2O_TOKEN_CACHE_DIGEST;
+            break;
+        }
+        break;
+    case 13:
+        switch (name[12]) {
+        case 'd':
+            if (memcmp(name, "last-modifie", 12) == 0)
+                return H2O_TOKEN_LAST_MODIFIED;
+            break;
+        case 'e':
+            if (memcmp(name, "content-rang", 12) == 0)
+                return H2O_TOKEN_CONTENT_RANGE;
+            break;
+        case 'h':
+            if (memcmp(name, "if-none-matc", 12) == 0)
+                return H2O_TOKEN_IF_NONE_MATCH;
+            break;
+        case 'l':
+            if (memcmp(name, "cache-contro", 12) == 0)
+                return H2O_TOKEN_CACHE_CONTROL;
+            if (memcmp(name, "x-reproxy-ur", 12) == 0)
+                return H2O_TOKEN_X_REPROXY_URL;
+            break;
+        case 'n':
+            if (memcmp(name, "authorizatio", 12) == 0)
+                return H2O_TOKEN_AUTHORIZATION;
+            break;
+        case 's':
+            if (memcmp(name, "accept-range", 12) == 0)
+                return H2O_TOKEN_ACCEPT_RANGES;
+            break;
+        }
+        break;
+    case 14:
+        switch (name[13]) {
+        case 'h':
+            if (memcmp(name, "content-lengt", 13) == 0)
+                return H2O_TOKEN_CONTENT_LENGTH;
+            break;
+        case 's':
+            if (memcmp(name, "http2-setting", 13) == 0)
+                return H2O_TOKEN_HTTP2_SETTINGS;
+            break;
+        case 't':
+            if (memcmp(name, "accept-charse", 13) == 0)
+                return H2O_TOKEN_ACCEPT_CHARSET;
+            break;
+        }
+        break;
+    case 15:
+        switch (name[14]) {
+        case 'e':
+            if (memcmp(name, "accept-languag", 14) == 0)
+                return H2O_TOKEN_ACCEPT_LANGUAGE;
+            break;
+        case 'g':
+            if (memcmp(name, "accept-encodin", 14) == 0)
+                return H2O_TOKEN_ACCEPT_ENCODING;
+            break;
+        case 'r':
+            if (memcmp(name, "x-forwarded-fo", 14) == 0)
+                return H2O_TOKEN_X_FORWARDED_FOR;
+            break;
+        case 't':
+            if (memcmp(name, "x-compress-hin", 14) == 0)
+                return H2O_TOKEN_X_COMPRESS_HINT;
+            break;
+        }
+        break;
+    case 16:
+        switch (name[15]) {
+        case 'e':
+            if (memcmp(name, "content-languag", 15) == 0)
+                return H2O_TOKEN_CONTENT_LANGUAGE;
+            if (memcmp(name, "www-authenticat", 15) == 0)
+                return H2O_TOKEN_WWW_AUTHENTICATE;
+            break;
+        case 'g':
+            if (memcmp(name, "content-encodin", 15) == 0)
+                return H2O_TOKEN_CONTENT_ENCODING;
+            break;
+        case 'n':
+            if (memcmp(name, "content-locatio", 15) == 0)
+                return H2O_TOKEN_CONTENT_LOCATION;
+            break;
+        }
+        break;
+    case 17:
+        switch (name[16]) {
+        case 'e':
+            if (memcmp(name, "if-modified-sinc", 16) == 0)
+                return H2O_TOKEN_IF_MODIFIED_SINCE;
+            break;
+        case 'g':
+            if (memcmp(name, "transfer-encodin", 16) == 0)
+                return H2O_TOKEN_TRANSFER_ENCODING;
+            break;
+        }
+        break;
+    case 18:
+        switch (name[17]) {
+        case 'e':
+            if (memcmp(name, "proxy-authenticat", 17) == 0)
+                return H2O_TOKEN_PROXY_AUTHENTICATE;
+            break;
+        }
+        break;
+    case 19:
+        switch (name[18]) {
+        case 'e':
+            if (memcmp(name, "if-unmodified-sinc", 18) == 0)
+                return H2O_TOKEN_IF_UNMODIFIED_SINCE;
+            break;
+        case 'n':
+            if (memcmp(name, "content-dispositio", 18) == 0)
+                return H2O_TOKEN_CONTENT_DISPOSITION;
+            if (memcmp(name, "proxy-authorizatio", 18) == 0)
+                return H2O_TOKEN_PROXY_AUTHORIZATION;
+            break;
+        }
+        break;
+    case 25:
+        switch (name[24]) {
+        case 'y':
+            if (memcmp(name, "strict-transport-securit", 24) == 0)
+                return H2O_TOKEN_STRICT_TRANSPORT_SECURITY;
+            break;
+        }
+        break;
+    case 27:
+        switch (name[26]) {
+        case 'n':
+            if (memcmp(name, "access-control-allow-origi", 26) == 0)
+                return H2O_TOKEN_ACCESS_CONTROL_ALLOW_ORIGIN;
+            break;
+        }
+        break;
+    }
+
+    return NULL;
+}
diff --git a/debian/vendor-h2o/lib/core/util.c b/debian/vendor-h2o/lib/core/util.c
new file mode 100644
index 0000000..50d2b24
--- /dev/null
+++ b/debian/vendor-h2o/lib/core/util.c
@@ -0,0 +1,562 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku, Satoh Hiroh
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <assert.h>
+#include <inttypes.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include "h2o.h"
+#include "h2o/http1.h"
+#include "h2o/http2.h"
+
+struct st_h2o_accept_data_t {
+    h2o_accept_ctx_t *ctx;
+    h2o_socket_t *sock;
+    h2o_timeout_entry_t timeout;
+    h2o_memcached_req_t *async_resumption_get_req;
+    struct timeval connected_at;
+};
+
+static void on_accept_timeout(h2o_timeout_entry_t *entry);
+
+static struct st_h2o_accept_data_t *create_accept_data(h2o_accept_ctx_t *ctx, h2o_socket_t *sock, struct timeval connected_at)
+{
+    struct st_h2o_accept_data_t *data = h2o_mem_alloc(sizeof(*data));
+
+    data->ctx = ctx;
+    data->sock = sock;
+    data->timeout = (h2o_timeout_entry_t){0};
+    data->timeout.cb = on_accept_timeout;
+    h2o_timeout_link(ctx->ctx->loop, &ctx->ctx->handshake_timeout, &data->timeout);
+    data->async_resumption_get_req = NULL;
+    data->connected_at = connected_at;
+
+    sock->data = data;
+    return data;
+}
+
+static void free_accept_data(struct st_h2o_accept_data_t *data)
+{
+    assert(data->async_resumption_get_req == NULL);
+    h2o_timeout_unlink(&data->timeout);
+    free(data);
+}
+
+static struct {
+    h2o_memcached_context_t *memc;
+    unsigned expiration;
+} async_resumption_context;
+
+static void async_resumption_on_get(h2o_iovec_t session_data, void *_accept_data)
+{
+    struct st_h2o_accept_data_t *accept_data = _accept_data;
+    accept_data->async_resumption_get_req = NULL;
+    h2o_socket_ssl_resume_server_handshake(accept_data->sock, session_data);
+}
+
+static void async_resumption_get(h2o_socket_t *sock, h2o_iovec_t session_id)
+{
+    struct st_h2o_accept_data_t *data = sock->data;
+
+    data->async_resumption_get_req =
+        h2o_memcached_get(async_resumption_context.memc, data->ctx->libmemcached_receiver, session_id, async_resumption_on_get,
+                          data, H2O_MEMCACHED_ENCODE_KEY | H2O_MEMCACHED_ENCODE_VALUE);
+}
+
+static void async_resumption_new(h2o_iovec_t session_id, h2o_iovec_t session_data)
+{
+    h2o_memcached_set(async_resumption_context.memc, session_id, session_data,
+                      (uint32_t)time(NULL) + async_resumption_context.expiration,
+                      H2O_MEMCACHED_ENCODE_KEY | H2O_MEMCACHED_ENCODE_VALUE);
+}
+
+void h2o_accept_setup_async_ssl_resumption(h2o_memcached_context_t *memc, unsigned expiration)
+{
+    async_resumption_context.memc = memc;
+    async_resumption_context.expiration = expiration;
+    h2o_socket_ssl_async_resumption_init(async_resumption_get, async_resumption_new);
+}
+
+void on_accept_timeout(h2o_timeout_entry_t *entry)
+{
+    /* TODO log */
+    struct st_h2o_accept_data_t *data = H2O_STRUCT_FROM_MEMBER(struct st_h2o_accept_data_t, timeout, entry);
+    if (data->async_resumption_get_req != NULL) {
+        h2o_memcached_cancel_get(async_resumption_context.memc, data->async_resumption_get_req);
+        data->async_resumption_get_req = NULL;
+    }
+    h2o_socket_t *sock = data->sock;
+    free_accept_data(data);
+    h2o_socket_close(sock);
+}
+
+static void on_ssl_handshake_complete(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_accept_data_t *data = sock->data;
+    sock->data = NULL;
+
+    if (err != NULL) {
+        h2o_socket_close(sock);
+        goto Exit;
+    }
+
+    h2o_iovec_t proto = h2o_socket_ssl_get_selected_protocol(sock);
+    const h2o_iovec_t *ident;
+    for (ident = h2o_http2_alpn_protocols; ident->len != 0; ++ident) {
+        if (proto.len == ident->len && memcmp(proto.base, ident->base, proto.len) == 0) {
+            /* connect as http2 */
+            h2o_http2_accept(data->ctx, sock, data->connected_at);
+            goto Exit;
+        }
+    }
+    /* connect as http1 */
+    h2o_http1_accept(data->ctx, sock, data->connected_at);
+
+Exit:
+    free_accept_data(data);
+}
+
+static ssize_t parse_proxy_line(char *src, size_t len, struct sockaddr *sa, socklen_t *salen)
+{
+#define CHECK_EOF()                                                                                                                \
+    if (p == end)                                                                                                                  \
+    return -2
+#define EXPECT_CHAR(ch)                                                                                                            \
+    do {                                                                                                                           \
+        CHECK_EOF();                                                                                                               \
+        if (*p++ != ch)                                                                                                            \
+            return -1;                                                                                                             \
+    } while (0)
+#define SKIP_TO_WS()                                                                                                               \
+    do {                                                                                                                           \
+        do {                                                                                                                       \
+            CHECK_EOF();                                                                                                           \
+        } while (*p++ != ' ');                                                                                                     \
+        --p;                                                                                                                       \
+    } while (0)
+
+    char *p = src, *end = p + len;
+    void *addr;
+    in_port_t *port;
+
+    /* "PROXY "*/
+    EXPECT_CHAR('P');
+    EXPECT_CHAR('R');
+    EXPECT_CHAR('O');
+    EXPECT_CHAR('X');
+    EXPECT_CHAR('Y');
+    EXPECT_CHAR(' ');
+
+    /* "TCP[46] " */
+    CHECK_EOF();
+    if (*p++ != 'T') {
+        *salen = 0; /* indicate that no data has been obtained */
+        goto SkipToEOL;
+    }
+    EXPECT_CHAR('C');
+    EXPECT_CHAR('P');
+    CHECK_EOF();
+    switch (*p++) {
+    case '4':
+        *salen = sizeof(struct sockaddr_in);
+        memset(sa, 0, sizeof(struct sockaddr_in));
+        sa->sa_family = AF_INET;
+        addr = &((struct sockaddr_in *)sa)->sin_addr;
+        port = &((struct sockaddr_in *)sa)->sin_port;
+        break;
+    case '6':
+        *salen = sizeof(struct sockaddr_in6);
+        memset(sa, 0, sizeof(struct sockaddr_in6));
+        sa->sa_family = AF_INET6;
+        addr = &((struct sockaddr_in6 *)sa)->sin6_addr;
+        port = &((struct sockaddr_in6 *)sa)->sin6_port;
+        break;
+    default:
+        return -1;
+    }
+    EXPECT_CHAR(' ');
+
+    /* parse peer address */
+    char *addr_start = p;
+    SKIP_TO_WS();
+    *p = '\0';
+    if (inet_pton(sa->sa_family, addr_start, addr) != 1)
+        return -1;
+    *p++ = ' ';
+
+    /* skip local address */
+    SKIP_TO_WS();
+    ++p;
+
+    /* parse peer port */
+    char *port_start = p;
+    SKIP_TO_WS();
+    *p = '\0';
+    unsigned short usval;
+    if (sscanf(port_start, "%hu", &usval) != 1)
+        return -1;
+    *port = htons(usval);
+    *p++ = ' ';
+
+SkipToEOL:
+    do {
+        CHECK_EOF();
+    } while (*p++ != '\r');
+    CHECK_EOF();
+    if (*p++ != '\n')
+        return -2;
+    return p - src;
+
+#undef CHECK_EOF
+#undef EXPECT_CHAR
+#undef SKIP_TO_WS
+}
+
+static void on_read_proxy_line(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_accept_data_t *data = sock->data;
+
+    if (err != NULL) {
+        free_accept_data(data);
+        h2o_socket_close(sock);
+        return;
+    }
+
+    struct sockaddr_storage addr;
+    socklen_t addrlen;
+    ssize_t r = parse_proxy_line(sock->input->bytes, sock->input->size, (void *)&addr, &addrlen);
+    switch (r) {
+    case -1: /* error, just pass the input to the next handler */
+        break;
+    case -2: /* incomplete */
+        return;
+    default:
+        h2o_buffer_consume(&sock->input, r);
+        if (addrlen != 0)
+            h2o_socket_setpeername(sock, (void *)&addr, addrlen);
+        break;
+    }
+
+    if (data->ctx->ssl_ctx != NULL) {
+        h2o_socket_ssl_handshake(sock, data->ctx->ssl_ctx, NULL, on_ssl_handshake_complete);
+    } else {
+        struct st_h2o_accept_data_t *data = sock->data;
+        sock->data = NULL;
+        h2o_http1_accept(data->ctx, sock, data->connected_at);
+        free_accept_data(data);
+    }
+}
+
+void h2o_accept(h2o_accept_ctx_t *ctx, h2o_socket_t *sock)
+{
+    struct timeval connected_at = *h2o_get_timestamp(ctx->ctx, NULL, NULL);
+
+    if (ctx->expect_proxy_line || ctx->ssl_ctx != NULL) {
+        create_accept_data(ctx, sock, connected_at);
+        if (ctx->expect_proxy_line) {
+            h2o_socket_read_start(sock, on_read_proxy_line);
+        } else {
+            h2o_socket_ssl_handshake(sock, ctx->ssl_ctx, NULL, on_ssl_handshake_complete);
+        }
+    } else {
+        h2o_http1_accept(ctx, sock, connected_at);
+    }
+}
+
+size_t h2o_stringify_protocol_version(char *dst, int version)
+{
+    char *p = dst;
+
+    if (version < 0x200) {
+        assert(version <= 0x109);
+#define PREFIX "HTTP/1."
+        memcpy(p, PREFIX, sizeof(PREFIX) - 1);
+        p += sizeof(PREFIX) - 1;
+#undef PREFIX
+        *p++ = '0' + (version & 0xff);
+    } else {
+#define PROTO "HTTP/2"
+        memcpy(p, PROTO, sizeof(PROTO) - 1);
+        p += sizeof(PROTO) - 1;
+#undef PROTO
+    }
+
+    *p = '\0';
+    return p - dst;
+}
+
+size_t h2o_stringify_proxy_header(h2o_conn_t *conn, char *buf)
+{
+    struct sockaddr_storage ss;
+    socklen_t sslen;
+    size_t strlen;
+    uint16_t peerport;
+    char *dst = buf;
+
+    if ((sslen = conn->callbacks->get_peername(conn, (void *)&ss)) == 0)
+        goto Unknown;
+    switch (ss.ss_family) {
+    case AF_INET:
+        memcpy(dst, "PROXY TCP4 ", 11);
+        dst += 11;
+        break;
+    case AF_INET6:
+        memcpy(dst, "PROXY TCP6 ", 11);
+        dst += 11;
+        break;
+    default:
+        goto Unknown;
+    }
+    if ((strlen = h2o_socket_getnumerichost((void *)&ss, sslen, dst)) == SIZE_MAX)
+        goto Unknown;
+    dst += strlen;
+    *dst++ = ' ';
+
+    peerport = h2o_socket_getport((void *)&ss);
+
+    if ((sslen = conn->callbacks->get_sockname(conn, (void *)&ss)) == 0)
+        goto Unknown;
+    if ((strlen = h2o_socket_getnumerichost((void *)&ss, sslen, dst)) == SIZE_MAX)
+        goto Unknown;
+    dst += strlen;
+    *dst++ = ' ';
+
+    dst += sprintf(dst, "%" PRIu16 " %" PRIu16 "\r\n", peerport, (uint16_t)h2o_socket_getport((void *)&ss));
+
+    return dst - buf;
+
+Unknown:
+    memcpy(buf, "PROXY UNKNOWN\r\n", 15);
+    return 15;
+}
+
+static void push_one_path(h2o_mem_pool_t *pool, h2o_iovec_vector_t *paths_to_push, h2o_iovec_t url, h2o_iovec_t base_path,
+                          const h2o_url_scheme_t *input_scheme, h2o_iovec_t input_authority, const h2o_url_scheme_t *base_scheme,
+                          h2o_iovec_t *base_authority)
+{
+    h2o_url_t parsed, resolved;
+
+    /* check the authority, and extract absolute path */
+    if (h2o_url_parse_relative(url.base, url.len, &parsed) != 0)
+        return;
+
+    /* fast-path for abspath form */
+    if (base_scheme == NULL && parsed.scheme == NULL && parsed.authority.base == NULL && url.len != 0 && url.base[0] == '/') {
+        h2o_vector_reserve(pool, paths_to_push, paths_to_push->size + 1);
+        paths_to_push->entries[paths_to_push->size++] = h2o_strdup(pool, url.base, url.len);
+        return;
+    }
+
+    /* check scheme and authority if given URL contains either of the two, or if base is specified */
+    h2o_url_t base = {input_scheme, input_authority, {NULL}, base_path, 65535};
+    if (base_scheme != NULL) {
+        base.scheme = base_scheme;
+        base.authority = *base_authority;
+    }
+    h2o_url_resolve(pool, &base, &parsed, &resolved);
+    if (input_scheme != resolved.scheme)
+        return;
+    if (!h2o_lcstris(input_authority.base, input_authority.len, resolved.authority.base, resolved.authority.len))
+        return;
+
+    h2o_vector_reserve(pool, paths_to_push, paths_to_push->size + 1);
+    paths_to_push->entries[paths_to_push->size++] = resolved.path;
+}
+
+h2o_iovec_vector_t h2o_extract_push_path_from_link_header(h2o_mem_pool_t *pool, const char *value, size_t value_len,
+                                                          h2o_iovec_t base_path, const h2o_url_scheme_t *input_scheme,
+                                                          h2o_iovec_t input_authority, const h2o_url_scheme_t *base_scheme,
+                                                          h2o_iovec_t *base_authority, h2o_iovec_t *filtered_value)
+{
+    h2o_iovec_vector_t paths_to_push = {NULL};
+    h2o_iovec_t iter = h2o_iovec_init(value, value_len), token_value;
+    const char *token;
+    size_t token_len;
+    *filtered_value = h2o_iovec_init(NULL, 0);
+
+#define PUSH_FILTERED_VALUE(s, e)                                                                                                  \
+    do {                                                                                                                           \
+        if (filtered_value->len != 0) {                                                                                            \
+            memcpy(filtered_value->base + filtered_value->len, ", ", 2);                                                           \
+            filtered_value->len += 2;                                                                                              \
+        }                                                                                                                          \
+        memcpy(filtered_value->base + filtered_value->len, (s), (e) - (s));                                                        \
+        filtered_value->len += (e) - (s);                                                                                          \
+    } while (0)
+
+    /* extract URL values from Link: </pushed.css>; rel=preload */
+    do {
+        if ((token = h2o_next_token(&iter, ';', &token_len, NULL)) == NULL)
+            break;
+        /* first element should be <URL> */
+        if (!(token_len >= 2 && token[0] == '<' && token[token_len - 1] == '>'))
+            break;
+        h2o_iovec_t url_with_brackets = h2o_iovec_init(token, token_len);
+        /* find rel=preload */
+        int preload = 0, nopush = 0, push_only = 0;
+        while ((token = h2o_next_token(&iter, ';', &token_len, &token_value)) != NULL &&
+               !h2o_memis(token, token_len, H2O_STRLIT(","))) {
+            if (h2o_lcstris(token, token_len, H2O_STRLIT("rel")) &&
+                h2o_lcstris(token_value.base, token_value.len, H2O_STRLIT("preload"))) {
+                preload++;
+            } else if (h2o_lcstris(token, token_len, H2O_STRLIT("nopush"))) {
+                nopush++;
+            } else if (h2o_lcstris(token, token_len, H2O_STRLIT("x-http2-push-only"))) {
+                push_only++;
+            }
+        }
+        /* push the path */
+        if (!nopush && preload)
+            push_one_path(pool, &paths_to_push, h2o_iovec_init(url_with_brackets.base + 1, url_with_brackets.len - 2), base_path,
+                          input_scheme, input_authority, base_scheme, base_authority);
+        /* store the elements that needs to be preserved to filtered_value */
+        if (push_only) {
+            if (filtered_value->base == NULL) {
+                /* the max. size of filtered_value would be x2 in the worst case, when "," is converted to ", " */
+                filtered_value->base = h2o_mem_alloc_pool(pool, value_len * 2);
+                const char *prev_comma = h2o_memrchr(value, ',', url_with_brackets.base - value);
+                if (prev_comma != NULL)
+                    PUSH_FILTERED_VALUE(value, prev_comma);
+            }
+        } else if (filtered_value->base != NULL) {
+            PUSH_FILTERED_VALUE(url_with_brackets.base, token != NULL ? token : value + value_len);
+        }
+    } while (token != NULL);
+
+    if (filtered_value->base != NULL) {
+        if (token != NULL)
+            PUSH_FILTERED_VALUE(token, value + value_len);
+    } else {
+        *filtered_value = h2o_iovec_init(value, value_len);
+    }
+
+    return paths_to_push;
+
+#undef PUSH_FILTERED_VALUE
+}
+
+int h2o_get_compressible_types(const h2o_headers_t *headers)
+{
+    size_t header_index;
+    int compressible_types = 0;
+
+    for (header_index = 0; header_index != headers->size; ++header_index) {
+        const h2o_header_t *header = headers->entries + header_index;
+        if (H2O_UNLIKELY(header->name == &H2O_TOKEN_ACCEPT_ENCODING->buf)) {
+            h2o_iovec_t iter = h2o_iovec_init(header->value.base, header->value.len);
+            const char *token = NULL;
+            size_t token_len = 0;
+            while ((token = h2o_next_token(&iter, ',', &token_len, NULL)) != NULL) {
+                if (h2o_lcstris(token, token_len, H2O_STRLIT("gzip")))
+                    compressible_types |= H2O_COMPRESSIBLE_GZIP;
+                else if (h2o_lcstris(token, token_len, H2O_STRLIT("br")))
+                    compressible_types |= H2O_COMPRESSIBLE_BROTLI;
+            }
+        }
+    }
+
+    return compressible_types;
+}
+
+h2o_iovec_t h2o_build_destination(h2o_req_t *req, const char *prefix, size_t prefix_len, int use_path_normalized)
+{
+    h2o_iovec_t parts[4];
+    size_t num_parts = 0;
+    int conf_ends_with_slash = req->pathconf->path.base[req->pathconf->path.len - 1] == '/';
+    int prefix_ends_with_slash = prefix[prefix_len - 1] == '/';
+
+    /* destination starts with given prefix */
+    parts[num_parts++] = h2o_iovec_init(prefix, prefix_len);
+
+    /* make adjustments depending on the trailing slashes */
+    if (conf_ends_with_slash != prefix_ends_with_slash) {
+        if (conf_ends_with_slash) {
+            parts[num_parts++] = h2o_iovec_init(H2O_STRLIT("/"));
+        } else {
+            if (req->path_normalized.len != req->pathconf->path.len)
+                parts[num_parts - 1].len -= 1;
+        }
+    }
+
+    /* append suffix path and query */
+
+    if (use_path_normalized) {
+        parts[num_parts++] = h2o_uri_escape(&req->pool, req->path_normalized.base + req->pathconf->path.len,
+                                            req->path_normalized.len - req->pathconf->path.len, "/@:");
+        if (req->query_at != SIZE_MAX) {
+            parts[num_parts++] = h2o_iovec_init(req->path.base + req->query_at, req->path.len - req->query_at);
+        }
+    } else {
+        if (req->path.len > 1) {
+            /*
+             * When proxying, we want to modify the input URL as little
+             * as possible. We use norm_indexes to find the start of
+             * the path we want to forward.
+             */
+            size_t next_unnormalized;
+            if (req->norm_indexes && req->pathconf->path.len > 1) {
+                next_unnormalized = req->norm_indexes[req->pathconf->path.len - 1];
+            } else {
+                next_unnormalized = req->pathconf->path.len;
+            }
+
+            /*
+             * Special case: the input path didn't have any '/' including the first,
+             * so the first character is actually found at '0'
+             */
+            if (req->path.base[0] != '/' && next_unnormalized == 1) {
+                next_unnormalized = 0;
+            }
+            parts[num_parts++] = (h2o_iovec_t){req->path.base + next_unnormalized, req->path.len - next_unnormalized};
+        }
+    }
+
+    return h2o_concat_list(&req->pool, parts, num_parts);
+}
+
+/* h2-14 and h2-16 are kept for backwards compatibility, as they are often used */
+#define ALPN_ENTRY(s)                                                                                                              \
+    {                                                                                                                              \
+        H2O_STRLIT(s)                                                                                                              \
+    }
+#define ALPN_PROTOCOLS_CORE ALPN_ENTRY("h2"), ALPN_ENTRY("h2-16"), ALPN_ENTRY("h2-14")
+#define NPN_PROTOCOLS_CORE                                                                                                         \
+    "\x02"                                                                                                                         \
+    "h2"                                                                                                                           \
+    "\x05"                                                                                                                         \
+    "h2-16"                                                                                                                        \
+    "\x05"                                                                                                                         \
+    "h2-14"
+
+static const h2o_iovec_t http2_alpn_protocols[] = {ALPN_PROTOCOLS_CORE, {NULL}};
+const h2o_iovec_t *h2o_http2_alpn_protocols = http2_alpn_protocols;
+
+static const h2o_iovec_t alpn_protocols[] = {ALPN_PROTOCOLS_CORE, {H2O_STRLIT("http/1.1")}, {NULL}};
+const h2o_iovec_t *h2o_alpn_protocols = alpn_protocols;
+
+const char *h2o_http2_npn_protocols = NPN_PROTOCOLS_CORE;
+const char *h2o_npn_protocols = NPN_PROTOCOLS_CORE "\x08"
+                                                   "http/1.1";
+
+uint64_t h2o_connection_id = 0;
diff --git a/debian/vendor-h2o/lib/handler/access_log.c b/debian/vendor-h2o/lib/handler/access_log.c
new file mode 100644
index 0000000..4a77041
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/access_log.c
@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <spawn.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include "h2o.h"
+#include "h2o/serverutil.h"
+
+struct st_h2o_access_log_filehandle_t {
+    h2o_logconf_t *logconf;
+    int fd;
+};
+
+struct st_h2o_access_logger_t {
+    h2o_logger_t super;
+    h2o_access_log_filehandle_t *fh;
+};
+
+static void log_access(h2o_logger_t *_self, h2o_req_t *req)
+{
+    struct st_h2o_access_logger_t *self = (struct st_h2o_access_logger_t *)_self;
+    h2o_access_log_filehandle_t *fh = self->fh;
+    char *logline, buf[4096];
+    size_t len;
+
+    /* stringify */
+    len = sizeof(buf);
+    logline = h2o_log_request(fh->logconf, req, &len, buf);
+
+    /* emit */
+    write(fh->fd, logline, len);
+
+    /* free memory */
+    if (logline != buf)
+        free(logline);
+}
+
+static void on_dispose_handle(void *_fh)
+{
+    h2o_access_log_filehandle_t *fh = _fh;
+
+    h2o_logconf_dispose(fh->logconf);
+    close(fh->fd);
+}
+
+int h2o_access_log_open_log(const char *path)
+{
+    int fd;
+
+    if (path[0] == '|') {
+        int pipefds[2];
+        pid_t pid;
+        char *argv[4] = {"/bin/sh", "-c", (char *)(path + 1), NULL};
+        /* create pipe */
+        if (pipe(pipefds) != 0) {
+            perror("pipe failed");
+            return -1;
+        }
+        if (fcntl(pipefds[1], F_SETFD, FD_CLOEXEC) == -1) {
+            perror("failed to set FD_CLOEXEC on pipefds[1]");
+            return -1;
+        }
+        /* spawn the logger */
+        int mapped_fds[] = {pipefds[0], 0, /* map pipefds[0] to stdin */
+                            -1};
+        if ((pid = h2o_spawnp(argv[0], argv, mapped_fds, 0)) == -1) {
+            fprintf(stderr, "failed to open logger: %s:%s\n", path + 1, strerror(errno));
+            return -1;
+        }
+        /* close the read side of the pipefds and return the write side */
+        close(pipefds[0]);
+        fd = pipefds[1];
+    } else {
+        if ((fd = open(path, O_CREAT | O_WRONLY | O_APPEND | O_CLOEXEC, 0644)) == -1) {
+            fprintf(stderr, "failed to open log file:%s:%s\n", path, strerror(errno));
+            return -1;
+        }
+    }
+
+    return fd;
+}
+
+h2o_access_log_filehandle_t *h2o_access_log_open_handle(const char *path, const char *fmt, int escape)
+{
+    h2o_logconf_t *logconf;
+    int fd;
+    h2o_access_log_filehandle_t *fh;
+    char errbuf[256];
+
+    /* default to combined log format */
+    if (fmt == NULL)
+        fmt = "%h %l %u %t \"%r\" %s %b \"%{Referer}i\" \"%{User-agent}i\"";
+    if ((logconf = h2o_logconf_compile(fmt, escape, errbuf)) == NULL) {
+        fprintf(stderr, "%s\n", errbuf);
+        return NULL;
+    }
+
+    /* open log file */
+    if ((fd = h2o_access_log_open_log(path)) == -1) {
+        h2o_logconf_dispose(logconf);
+        return NULL;
+    }
+
+    fh = h2o_mem_alloc_shared(NULL, sizeof(*fh), on_dispose_handle);
+    fh->logconf = logconf;
+    fh->fd = fd;
+    return fh;
+}
+
+static void dispose(h2o_logger_t *_self)
+{
+    struct st_h2o_access_logger_t *self = (void *)_self;
+
+    h2o_mem_release_shared(self->fh);
+}
+
+h2o_logger_t *h2o_access_log_register(h2o_pathconf_t *pathconf, h2o_access_log_filehandle_t *fh)
+{
+    struct st_h2o_access_logger_t *self = (void *)h2o_create_logger(pathconf, sizeof(*self));
+
+    self->super.dispose = dispose;
+    self->super.log_access = log_access;
+    self->fh = fh;
+    h2o_mem_addref_shared(fh);
+
+    return &self->super;
+}
diff --git a/debian/vendor-h2o/lib/handler/chunked.c b/debian/vendor-h2o/lib/handler/chunked.c
new file mode 100644
index 0000000..b6ad434
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/chunked.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "h2o.h"
+
+typedef struct st_chunked_encoder_t {
+    h2o_ostream_t super;
+    char buf[64];
+} chunked_encoder_t;
+
+static void send_chunk(h2o_ostream_t *_self, h2o_req_t *req, h2o_iovec_t *inbufs, size_t inbufcnt, h2o_send_state_t state)
+{
+    chunked_encoder_t *self = (void *)_self;
+    h2o_iovec_t *outbufs = alloca(sizeof(h2o_iovec_t) * (inbufcnt + 2));
+    size_t chunk_size, outbufcnt = 0, i;
+
+    /* calc chunk size */
+    chunk_size = 0;
+    for (i = 0; i != inbufcnt; ++i)
+        chunk_size += inbufs[i].len;
+    req->bytes_sent += chunk_size;
+
+    /* create chunk header and output data */
+    if (chunk_size != 0) {
+        outbufs[outbufcnt].base = self->buf;
+        outbufs[outbufcnt].len = sprintf(self->buf, "%zx\r\n", chunk_size);
+        assert(outbufs[outbufcnt].len < sizeof(self->buf));
+        outbufcnt++;
+        memcpy(outbufs + outbufcnt, inbufs, sizeof(h2o_iovec_t) * inbufcnt);
+        outbufcnt += inbufcnt;
+        if (state != H2O_SEND_STATE_ERROR) {
+            outbufs[outbufcnt].base = "\r\n0\r\n\r\n";
+            outbufs[outbufcnt].len = state == H2O_SEND_STATE_FINAL ? 7 : 2;
+            outbufcnt++;
+        }
+    } else if (state == H2O_SEND_STATE_FINAL) {
+        outbufs[outbufcnt].base = "0\r\n\r\n";
+        outbufs[outbufcnt].len = 5;
+        outbufcnt++;
+    }
+
+    /* if state is error, send a broken chunk to pass the error down to the browser */
+    if (state == H2O_SEND_STATE_ERROR) {
+        outbufs[outbufcnt].base = "\r\n1\r\n";
+        outbufs[outbufcnt].len = 5;
+        outbufcnt++;
+    }
+
+    h2o_ostream_send_next(&self->super, req, outbufs, outbufcnt, state);
+}
+
+static void on_setup_ostream(h2o_filter_t *self, h2o_req_t *req, h2o_ostream_t **slot)
+{
+    chunked_encoder_t *encoder;
+
+    /* do nothing if not HTTP/1.1 or content-length is known */
+    if (req->res.content_length != SIZE_MAX || req->version != 0x101)
+        goto Next;
+    /* RFC 2616 4.4 states that the following status codes (and response to a HEAD method) should not include message body */
+    if ((100 <= req->res.status && req->res.status <= 199) || req->res.status == 204 || req->res.status == 304)
+        goto Next;
+    else if (h2o_memis(req->input.method.base, req->input.method.len, H2O_STRLIT("HEAD")))
+        goto Next;
+    /* we cannot handle certain responses (like 101 switching protocols) */
+    if (req->res.status != 200) {
+        req->http1_is_persistent = 0;
+        goto Next;
+    }
+    /* skip if content-encoding header is being set */
+    if (h2o_find_header(&req->res.headers, H2O_TOKEN_TRANSFER_ENCODING, -1) != -1)
+        goto Next;
+
+    /* set content-encoding header */
+    h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_TRANSFER_ENCODING, NULL, H2O_STRLIT("chunked"));
+
+    /* set the flag that tells finalostream that req->bytes_sent is already counted */
+    req->bytes_counted_by_ostream = 1;
+
+    /* setup filter */
+    encoder = (void *)h2o_add_ostream(req, sizeof(chunked_encoder_t), slot);
+    encoder->super.do_send = send_chunk;
+    slot = &encoder->super.next;
+
+Next:
+    h2o_setup_next_ostream(req, slot);
+}
+
+void h2o_chunked_register(h2o_pathconf_t *pathconf)
+{
+    h2o_filter_t *self = h2o_create_filter(pathconf, sizeof(*self));
+    self->on_setup_ostream = on_setup_ostream;
+}
diff --git a/debian/vendor-h2o/lib/handler/compress.c b/debian/vendor-h2o/lib/handler/compress.c
new file mode 100644
index 0000000..6159771
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/compress.c
@@ -0,0 +1,144 @@
+/*
+ * Copyright (c) 2015,2016 Justin Zhu, DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <assert.h>
+#include <stdlib.h>
+#include "h2o.h"
+
+#ifndef BUF_SIZE
+#define BUF_SIZE 8192
+#endif
+
+struct st_compress_filter_t {
+    h2o_filter_t super;
+    h2o_compress_args_t args;
+};
+
+struct st_compress_encoder_t {
+    h2o_ostream_t super;
+    h2o_compress_context_t *compressor;
+};
+
+static void do_send(h2o_ostream_t *_self, h2o_req_t *req, h2o_iovec_t *inbufs, size_t inbufcnt, h2o_send_state_t state)
+{
+    struct st_compress_encoder_t *self = (void *)_self;
+    h2o_iovec_t *outbufs;
+    size_t outbufcnt;
+
+    self->compressor->transform(self->compressor, inbufs, inbufcnt, state, &outbufs, &outbufcnt);
+    h2o_ostream_send_next(&self->super, req, outbufs, outbufcnt, state);
+}
+
+static void on_setup_ostream(h2o_filter_t *_self, h2o_req_t *req, h2o_ostream_t **slot)
+{
+    struct st_compress_filter_t *self = (void *)_self;
+    struct st_compress_encoder_t *encoder;
+    int compressible_types;
+    h2o_compress_context_t *compressor;
+    ssize_t i;
+
+    if (req->version < 0x101)
+        goto Next;
+    if (req->res.status != 200)
+        goto Next;
+    if (h2o_memis(req->input.method.base, req->input.method.len, H2O_STRLIT("HEAD")))
+        goto Next;
+
+    switch (req->compress_hint) {
+    case H2O_COMPRESS_HINT_DISABLE:
+        /* compression was explicitely disabled, skip */
+        goto Next;
+    case H2O_COMPRESS_HINT_ENABLE:
+        /* compression was explicitely enabled */
+        break;
+    case H2O_COMPRESS_HINT_AUTO:
+    default:
+        /* no hint from the producer, decide whether to compress based
+           on the configuration */
+        if (req->res.mime_attr == NULL)
+            h2o_req_fill_mime_attributes(req);
+        if (!req->res.mime_attr->is_compressible)
+            goto Next;
+        if (req->res.content_length < self->args.min_size)
+            goto Next;
+    }
+
+    /* skip if failed to gather the list of compressible types */
+    if ((compressible_types = h2o_get_compressible_types(&req->headers)) == 0)
+        goto Next;
+
+    /* skip if content-encoding header is being set (as well as obtain the location of accept-ranges) */
+    size_t content_encoding_header_index = -1, accept_ranges_header_index = -1;
+    for (i = 0; i != req->res.headers.size; ++i) {
+        if (req->res.headers.entries[i].name == &H2O_TOKEN_CONTENT_ENCODING->buf)
+            content_encoding_header_index = i;
+        else if (req->res.headers.entries[i].name == &H2O_TOKEN_ACCEPT_RANGES->buf)
+            accept_ranges_header_index = i;
+        else
+            continue;
+    }
+    if (content_encoding_header_index != -1)
+        goto Next;
+
+/* open the compressor */
+#if H2O_USE_BROTLI
+    if (self->args.brotli.quality != -1 && (compressible_types & H2O_COMPRESSIBLE_BROTLI) != 0) {
+        compressor = h2o_compress_brotli_open(&req->pool, self->args.brotli.quality, req->res.content_length);
+    } else
+#endif
+        if (self->args.gzip.quality != -1 && (compressible_types & H2O_COMPRESSIBLE_GZIP) != 0) {
+        compressor = h2o_compress_gzip_open(&req->pool, self->args.gzip.quality);
+    } else {
+        /* let proxies know that we looked at accept-encoding when deciding not to compress */
+        h2o_set_header_token(&req->pool, &req->res.headers, H2O_TOKEN_VARY, H2O_STRLIT("accept-encoding"));
+        goto Next;
+    }
+
+    /* adjust the response headers */
+    req->res.content_length = SIZE_MAX;
+    h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CONTENT_ENCODING, NULL, compressor->name.base, compressor->name.len);
+    h2o_set_header_token(&req->pool, &req->res.headers, H2O_TOKEN_VARY, H2O_STRLIT("accept-encoding"));
+    if (accept_ranges_header_index != -1) {
+        req->res.headers.entries[accept_ranges_header_index].value = h2o_iovec_init(H2O_STRLIT("none"));
+    } else {
+        h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_ACCEPT_RANGES, NULL, H2O_STRLIT("none"));
+    }
+
+    /* setup filter */
+    encoder = (void *)h2o_add_ostream(req, sizeof(*encoder), slot);
+    encoder->super.do_send = do_send;
+    slot = &encoder->super.next;
+    encoder->compressor = compressor;
+
+    /* adjust preferred chunk size (compress by 8192 bytes) */
+    if (req->preferred_chunk_size > BUF_SIZE)
+        req->preferred_chunk_size = BUF_SIZE;
+
+Next:
+    h2o_setup_next_ostream(req, slot);
+}
+
+void h2o_compress_register(h2o_pathconf_t *pathconf, h2o_compress_args_t *args)
+{
+    struct st_compress_filter_t *self = (void *)h2o_create_filter(pathconf, sizeof(*self));
+    self->super.on_setup_ostream = on_setup_ostream;
+    self->args = *args;
+}
diff --git a/debian/vendor-h2o/lib/handler/compress/brotli.cc b/debian/vendor-h2o/lib/handler/compress/brotli.cc
new file mode 100644
index 0000000..d4d06e9
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/compress/brotli.cc
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2016 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <cassert>
+#include <cstdlib>
+#include <vector>
+#include <zlib.h>
+#include "h2o.h"
+#include "encode.h"
+
+namespace {
+    class brotli_context : public h2o_compress_context_t {
+    protected:
+        brotli::BrotliCompressor *brotli_;
+        brotli::BrotliParams params_;
+        std::vector<h2o_iovec_t> bufs_; // all bufs_[nnn].base must be free(3)ed
+    public:
+        brotli_context(int quality, size_t estimated_content_length) : brotli_(NULL) {
+            name = h2o_iovec_init(H2O_STRLIT("br"));
+            transform = _compress;
+            params_.quality = quality;
+            if (estimated_content_length != std::numeric_limits<size_t>::max())
+                _update_lgwin(params_, estimated_content_length);
+        }
+        ~brotli_context() {
+            _clear_bufs();
+            delete brotli_;
+        }
+        static void dispose(void *_self) {
+            brotli_context *self = static_cast<brotli_context *>(_self);
+            self->~brotli_context();
+        }
+    private:
+        void _clear_bufs();
+        void _emit(bool is_last, bool force_flush);
+        void _compress(h2o_iovec_t *inbufs, size_t inbufcnt, int is_final, h2o_iovec_t **outbufs, size_t *outbufcnt);
+        static void _compress(h2o_compress_context_t *self, h2o_iovec_t *inbufs, size_t inbufcnt, h2o_send_state_t state,
+                              h2o_iovec_t **outbufs, size_t *outbufcnt) {
+            static_cast<brotli_context*>(self)->_compress(inbufs, inbufcnt, !h2o_send_state_is_in_progress(state), outbufs, outbufcnt);
+        }
+        static void _update_lgwin(brotli::BrotliParams &params, size_t estimated_content_length);
+    };
+}
+
+void brotli_context::_clear_bufs()
+{
+    for (std::vector<h2o_iovec_t>::iterator i = bufs_.begin(); i != bufs_.end(); ++i)
+        free(i->base);
+    bufs_.clear();
+}
+
+void brotli_context::_emit(bool is_last, bool force_flush)
+{
+    uint8_t *output;
+    size_t out_size;
+    bool ret = brotli_->WriteBrotliData(is_last, force_flush, &out_size, &output);
+    assert(ret);
+    (void)ret;
+    if (out_size != 0)
+        bufs_.push_back(h2o_strdup(NULL, reinterpret_cast<const char *>(output), out_size));
+}
+
+void brotli_context::_compress(h2o_iovec_t *inbufs, size_t inbufcnt, int is_final, h2o_iovec_t **outbufs, size_t *outbufcnt)
+{
+    if (brotli_ == NULL) {
+        if (is_final) {
+            uint64_t len = 0;
+            for (size_t i = 0; i != inbufcnt; ++i)
+                len += inbufs[i].len;
+            if (len < std::numeric_limits<size_t>::max())
+                _update_lgwin(params_, len);
+        }
+        brotli_ = new brotli::BrotliCompressor(params_);
+    }
+
+    _clear_bufs();
+
+    if (inbufcnt != 0) {
+        size_t inbufindex = 0, offset = 0, block_space = brotli_->input_block_size();
+        while (inbufindex != inbufcnt) {
+            size_t copy_len = std::min(block_space, inbufs[inbufindex].len - offset);
+            brotli_->CopyInputToRingBuffer(copy_len, reinterpret_cast<const uint8_t *>(inbufs[inbufindex].base) + offset);
+            offset += copy_len;
+            if (inbufs[inbufindex].len == offset) {
+                if (++inbufindex == inbufcnt)
+                    break;
+                offset = 0;
+            }
+            if (block_space == 0) {
+                _emit(false, false);
+                block_space = brotli_->input_block_size();
+            }
+        }
+        _emit(is_final, !is_final);
+    } else {
+        if (is_final)
+            _emit(true, false);
+    }
+
+    if (is_final) {
+        delete brotli_;
+        brotli_ = NULL;
+    }
+
+    *outbufs = &bufs_.front();
+    *outbufcnt = bufs_.size();
+}
+
+void brotli_context::_update_lgwin(brotli::BrotliParams &params, size_t estimated_content_length)
+{
+    int bits = estimated_content_length > 1 ? sizeof(unsigned long long) * 8 - __builtin_clzll(estimated_content_length - 1) : 1;
+    if (bits < params.lgwin)
+        params.lgwin = std::max(bits, brotli::kMinWindowBits);
+}
+
+h2o_compress_context_t *h2o_compress_brotli_open(h2o_mem_pool_t *pool, int quality, size_t estimated_content_length)
+{
+    brotli_context *ctx = static_cast<brotli_context *>(h2o_mem_alloc_shared(pool, sizeof(*ctx), brotli_context::dispose));
+    return new (ctx) brotli_context(quality, estimated_content_length);
+}
diff --git a/debian/vendor-h2o/lib/handler/compress/gzip.c b/debian/vendor-h2o/lib/handler/compress/gzip.c
new file mode 100644
index 0000000..c12260d
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/compress/gzip.c
@@ -0,0 +1,190 @@
+/*
+ * Copyright (c) 2016 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <assert.h>
+#include <stdlib.h>
+#include <zlib.h>
+#include "h2o.h"
+
+#define WINDOW_BITS 31
+#ifndef BUF_SIZE /* is altered by unit test */
+#define BUF_SIZE 8192
+#endif
+
+typedef H2O_VECTOR(h2o_iovec_t) iovec_vector_t;
+
+struct st_gzip_context_t {
+    h2o_compress_context_t super;
+    z_stream zs;
+    int zs_is_open;
+    iovec_vector_t bufs;
+};
+
+static void do_compress(h2o_compress_context_t *_self, h2o_iovec_t *inbufs, size_t inbufcnt, h2o_send_state_t state,
+                        h2o_iovec_t **outbufs, size_t *outbufcnt);
+static void do_decompress(h2o_compress_context_t *_self, h2o_iovec_t *inbufs, size_t inbufcnt, h2o_send_state_t state,
+                          h2o_iovec_t **outbufs, size_t *outbufcnt);
+
+static void *alloc_cb(void *_unused, unsigned int cnt, unsigned int sz)
+{
+    return h2o_mem_alloc(cnt * (size_t)sz);
+}
+
+static void free_cb(void *_unused, void *p)
+{
+    free(p);
+}
+
+static void expand_buf(iovec_vector_t *bufs)
+{
+    h2o_vector_reserve(NULL, bufs, bufs->size + 1);
+    bufs->entries[bufs->size++] = h2o_iovec_init(h2o_mem_alloc(BUF_SIZE), 0);
+}
+
+typedef int (*processor)(z_streamp strm, int flush);
+
+static size_t process_chunk(struct st_gzip_context_t *self, const void *src, size_t len, int flush, size_t bufindex, processor proc)
+{
+    int ret;
+
+    self->zs.next_in = (void *)src;
+    self->zs.avail_in = (unsigned)len;
+
+    /* man says: If inflate/deflate returns with avail_out == 0, this function must be called again with the same value of the flush
+     * parameter and more output space (updated avail_out), until the flush is complete (function returns with non-zero avail_out).
+     */
+    do {
+        /* expand buffer (note: in case of Z_SYNC_FLUSH we need to supply at least 6 bytes of output buffer) */
+        if (self->bufs.entries[bufindex].len + 32 > BUF_SIZE) {
+            ++bufindex;
+            if (bufindex == self->bufs.size)
+                expand_buf(&self->bufs);
+            self->bufs.entries[bufindex].len = 0;
+        }
+        self->zs.next_out = (void *)(self->bufs.entries[bufindex].base + self->bufs.entries[bufindex].len);
+        self->zs.avail_out = (unsigned)(BUF_SIZE - self->bufs.entries[bufindex].len);
+        ret = proc(&self->zs, flush);
+        /* inflate() returns Z_BUF_ERROR if flush is set to Z_FINISH at the middle of the compressed data */
+        assert(ret == Z_OK || ret == Z_STREAM_END || ret == Z_BUF_ERROR);
+        self->bufs.entries[bufindex].len = BUF_SIZE - self->zs.avail_out;
+    } while (self->zs.avail_out == 0 && ret != Z_STREAM_END);
+
+    return bufindex;
+}
+
+static void do_process(h2o_compress_context_t *_self, h2o_iovec_t *inbufs, size_t inbufcnt, h2o_send_state_t state,
+                       h2o_iovec_t **outbufs, size_t *outbufcnt, processor proc)
+{
+    struct st_gzip_context_t *self = (void *)_self;
+    size_t outbufindex;
+    h2o_iovec_t last_buf;
+
+    outbufindex = 0;
+    self->bufs.entries[0].len = 0;
+
+    if (inbufcnt != 0) {
+        size_t i;
+        for (i = 0; i != inbufcnt - 1; ++i)
+            outbufindex = process_chunk(self, inbufs[i].base, inbufs[i].len, Z_NO_FLUSH, outbufindex, proc);
+        last_buf = inbufs[i];
+    } else {
+        last_buf = h2o_iovec_init(NULL, 0);
+    }
+    outbufindex = process_chunk(self, last_buf.base, last_buf.len, h2o_send_state_is_in_progress(state) ? Z_SYNC_FLUSH : Z_FINISH,
+                                outbufindex, proc);
+
+    *outbufs = self->bufs.entries;
+    *outbufcnt = outbufindex + 1;
+
+    if (!h2o_send_state_is_in_progress(state)) {
+        if (self->super.transform == do_compress) {
+            deflateEnd(&self->zs);
+        } else {
+            inflateEnd(&self->zs);
+        }
+        self->zs_is_open = 0;
+    }
+}
+
+static void do_compress(h2o_compress_context_t *_self, h2o_iovec_t *inbufs, size_t inbufcnt, h2o_send_state_t state,
+                        h2o_iovec_t **outbufs, size_t *outbufcnt)
+{
+    do_process(_self, inbufs, inbufcnt, state, outbufs, outbufcnt, (processor)deflate);
+}
+
+static void do_decompress(h2o_compress_context_t *_self, h2o_iovec_t *inbufs, size_t inbufcnt, h2o_send_state_t state,
+                          h2o_iovec_t **outbufs, size_t *outbufcnt)
+{
+    do_process(_self, inbufs, inbufcnt, state, outbufs, outbufcnt, (processor)inflate);
+}
+
+static void do_free(void *_self)
+{
+    struct st_gzip_context_t *self = _self;
+    size_t i;
+
+    if (self->zs_is_open) {
+        if (self->super.transform == do_compress) {
+            deflateEnd(&self->zs);
+        } else {
+            inflateEnd(&self->zs);
+        }
+    }
+
+    for (i = 0; i != self->bufs.size; ++i)
+        free(self->bufs.entries[i].base);
+    free(self->bufs.entries);
+}
+
+static struct st_gzip_context_t *gzip_open(h2o_mem_pool_t *pool)
+{
+    struct st_gzip_context_t *self = h2o_mem_alloc_shared(pool, sizeof(*self), do_free);
+
+    self->super.name = h2o_iovec_init(H2O_STRLIT("gzip"));
+    self->super.transform = NULL;
+    self->zs.zalloc = alloc_cb;
+    self->zs.zfree = free_cb;
+    self->zs.opaque = NULL;
+    self->zs_is_open = 1;
+    self->bufs = (iovec_vector_t){NULL};
+    expand_buf(&self->bufs);
+
+    return self;
+}
+
+h2o_compress_context_t *h2o_compress_gzip_open(h2o_mem_pool_t *pool, int quality)
+{
+    struct st_gzip_context_t *self = gzip_open(pool);
+    self->super.transform = do_compress;
+    /* Z_BEST_SPEED for on-the-fly compression, memlevel set to 8 as suggested by the manual */
+    deflateInit2(&self->zs, quality, Z_DEFLATED, WINDOW_BITS, 8, Z_DEFAULT_STRATEGY);
+
+    return &self->super;
+}
+
+h2o_compress_context_t *h2o_compress_gunzip_open(h2o_mem_pool_t *pool)
+{
+    struct st_gzip_context_t *self = gzip_open(pool);
+    self->super.transform = do_decompress;
+    inflateInit2(&self->zs, WINDOW_BITS);
+
+    return &self->super;
+}
diff --git a/debian/vendor-h2o/lib/handler/configurator/access_log.c b/debian/vendor-h2o/lib/handler/configurator/access_log.c
new file mode 100644
index 0000000..de63808
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/configurator/access_log.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o.h"
+#include "h2o/configurator.h"
+
+typedef H2O_VECTOR(h2o_access_log_filehandle_t *) st_h2o_access_log_filehandle_vector_t;
+
+struct st_h2o_access_log_configurator_t {
+    h2o_configurator_t super;
+    st_h2o_access_log_filehandle_vector_t *handles;
+    st_h2o_access_log_filehandle_vector_t _handles_stack[H2O_CONFIGURATOR_NUM_LEVELS + 1];
+};
+
+static int on_config(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_h2o_access_log_configurator_t *self = (void *)cmd->configurator;
+    const char *path, *fmt = NULL;
+    int escape = H2O_LOGCONF_ESCAPE_APACHE;
+    h2o_access_log_filehandle_t *fh;
+
+    switch (node->type) {
+    case YOML_TYPE_SCALAR:
+        path = node->data.scalar;
+        break;
+    case YOML_TYPE_MAPPING: {
+        yoml_t *t;
+        /* get path */
+        if ((t = yoml_get(node, "path")) == NULL) {
+            h2o_configurator_errprintf(cmd, node, "could not find mandatory key `path`");
+            return -1;
+        }
+        if (t->type != YOML_TYPE_SCALAR) {
+            h2o_configurator_errprintf(cmd, t, "`path` must be scalar");
+            return -1;
+        }
+        path = t->data.scalar;
+        /* get format */
+        if ((t = yoml_get(node, "format")) != NULL) {
+            if (t->type != YOML_TYPE_SCALAR) {
+                h2o_configurator_errprintf(cmd, t, "`format` must be a scalar");
+                return -1;
+            }
+            fmt = t->data.scalar;
+        }
+        /* get escape */
+        if ((t = yoml_get(node, "escape")) != NULL) {
+            switch (h2o_configurator_get_one_of(cmd, t, "apache,json")) {
+            case 0:
+                escape = H2O_LOGCONF_ESCAPE_APACHE;
+                break;
+            case 1:
+                escape = H2O_LOGCONF_ESCAPE_JSON;
+                break;
+            default:
+                return -1;
+            }
+        }
+    } break;
+    default:
+        h2o_configurator_errprintf(cmd, node, "node must be a scalar or a mapping");
+        return -1;
+    }
+
+    if (!ctx->dry_run) {
+        if ((fh = h2o_access_log_open_handle(path, fmt, escape)) == NULL)
+            return -1;
+        h2o_vector_reserve(NULL, self->handles, self->handles->size + 1);
+        self->handles->entries[self->handles->size++] = fh;
+    }
+
+    return 0;
+}
+
+static int on_config_enter(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_h2o_access_log_configurator_t *self = (void *)_self;
+    size_t i;
+
+    /* push the stack pointer */
+    ++self->handles;
+
+    /* link the handles */
+    memset(self->handles, 0, sizeof(*self->handles));
+    h2o_vector_reserve(NULL, self->handles, self->handles[-1].size + 1);
+    for (i = 0; i != self->handles[-1].size; ++i) {
+        h2o_access_log_filehandle_t *fh = self->handles[-1].entries[i];
+        self->handles[0].entries[self->handles[0].size++] = fh;
+        h2o_mem_addref_shared(fh);
+    }
+
+    return 0;
+}
+
+static int on_config_exit(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_h2o_access_log_configurator_t *self = (void *)_self;
+    size_t i;
+
+    /* register all handles, and decref them */
+    for (i = 0; i != self->handles->size; ++i) {
+        h2o_access_log_filehandle_t *fh = self->handles->entries[i];
+        if (ctx->pathconf != NULL)
+            h2o_access_log_register(ctx->pathconf, fh);
+        h2o_mem_release_shared(fh);
+    }
+    /* free the vector */
+    free(self->handles->entries);
+
+    /* pop the stack pointer */
+    --self->handles;
+
+    return 0;
+}
+
+void h2o_access_log_register_configurator(h2o_globalconf_t *conf)
+{
+    struct st_h2o_access_log_configurator_t *self = (void *)h2o_configurator_create(conf, sizeof(*self));
+
+    self->super.enter = on_config_enter;
+    self->super.exit = on_config_exit;
+    self->handles = self->_handles_stack;
+
+    h2o_configurator_define_command(&self->super, "access-log", H2O_CONFIGURATOR_FLAG_ALL_LEVELS, on_config);
+}
diff --git a/debian/vendor-h2o/lib/handler/configurator/compress.c b/debian/vendor-h2o/lib/handler/configurator/compress.c
new file mode 100644
index 0000000..c023dd5
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/configurator/compress.c
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o.h"
+#include "h2o/configurator.h"
+
+#define DEFAULT_GZIP_QUALITY 1
+#define DEFAULT_BROTLI_QUALITY 1
+
+struct compress_configurator_t {
+    h2o_configurator_t super;
+    h2o_compress_args_t *vars, _vars_stack[H2O_CONFIGURATOR_NUM_LEVELS + 1];
+};
+
+static const h2o_compress_args_t all_off = {0, {-1}, {-1}}, all_on = {100, {DEFAULT_GZIP_QUALITY}, {DEFAULT_BROTLI_QUALITY}};
+
+static int on_config_gzip(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct compress_configurator_t *self = (void *)cmd->configurator;
+    int mode;
+
+    if ((mode = (int)h2o_configurator_get_one_of(cmd, node, "OFF,ON")) == -1)
+        return -1;
+
+    *self->vars = all_off;
+    if (mode != 0)
+        self->vars->gzip.quality = DEFAULT_GZIP_QUALITY;
+
+    return 0;
+}
+
+static int obtain_quality(yoml_t *node, int min_quality, int max_quality, int default_quality, int *slot)
+{
+    int tmp;
+    if (node->type != YOML_TYPE_SCALAR)
+        return -1;
+    if (strcasecmp(node->data.scalar, "OFF") == 0) {
+        *slot = -1;
+        return 0;
+    }
+    if (strcasecmp(node->data.scalar, "ON") == 0) {
+        *slot = default_quality;
+        return 0;
+    }
+    if (sscanf(node->data.scalar, "%d", &tmp) == 1 && (min_quality <= tmp && tmp <= max_quality)) {
+        *slot = tmp;
+        return 0;
+    }
+    return -1;
+}
+
+static int on_config_compress_min_size(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct compress_configurator_t *self = (void *)cmd->configurator;
+    return h2o_configurator_scanf(cmd, node, "%zu", &self->vars->min_size);
+}
+
+static int on_config_compress(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct compress_configurator_t *self = (void *)cmd->configurator;
+    size_t i;
+
+    switch (node->type) {
+    case YOML_TYPE_SCALAR:
+        if (strcasecmp(node->data.scalar, "OFF") == 0) {
+            *self->vars = all_off;
+        } else if (strcasecmp(node->data.scalar, "ON") == 0) {
+            *self->vars = all_on;
+        } else {
+            h2o_configurator_errprintf(cmd, node, "scalar argument must be either of: `OFF`, `ON`");
+            return -1;
+        }
+        break;
+    case YOML_TYPE_SEQUENCE:
+        *self->vars = all_off;
+        for (i = 0; i != node->data.sequence.size; ++i) {
+            yoml_t *element = node->data.sequence.elements[i];
+            if (element->type == YOML_TYPE_SCALAR && strcasecmp(element->data.scalar, "gzip") == 0) {
+                self->vars->gzip.quality = DEFAULT_GZIP_QUALITY;
+            } else if (element->type == YOML_TYPE_SCALAR && strcasecmp(element->data.scalar, "br") == 0) {
+                self->vars->brotli.quality = DEFAULT_BROTLI_QUALITY;
+            } else {
+                h2o_configurator_errprintf(cmd, element, "element of the sequence must be either of: `gzip`, `br`");
+                return -1;
+            }
+        }
+        break;
+    case YOML_TYPE_MAPPING:
+        *self->vars = all_off;
+        for (i = 0; i != node->data.mapping.size; ++i) {
+            yoml_t *key = node->data.mapping.elements[i].key;
+            yoml_t *value = node->data.mapping.elements[i].value;
+            if (key->type == YOML_TYPE_SCALAR && strcasecmp(key->data.scalar, "gzip") == 0) {
+                if (obtain_quality(value, 1, 9, DEFAULT_GZIP_QUALITY, &self->vars->gzip.quality) != 0) {
+                    h2o_configurator_errprintf(
+                        cmd, value, "value of gzip attribute must be either of `OFF`, `ON` or an integer value between 1 and 9");
+                    return -1;
+                }
+            } else if (key->type == YOML_TYPE_SCALAR && strcasecmp(key->data.scalar, "br") == 0) {
+                if (obtain_quality(value, 0, 11, DEFAULT_BROTLI_QUALITY, &self->vars->brotli.quality) != 0) {
+                    h2o_configurator_errprintf(
+                        cmd, value, "value of br attribute must be either of `OFF`, `ON` or an integer between 0 and 11");
+                    return -1;
+                }
+            } else {
+                h2o_configurator_errprintf(cmd, key, "key must be either of: `gzip`, `br`");
+                return -1;
+            }
+        }
+        break;
+    default:
+        h2o_fatal("unexpected node type");
+        break;
+    }
+
+    return 0;
+}
+
+static int on_config_enter(h2o_configurator_t *configurator, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct compress_configurator_t *self = (void *)configurator;
+
+    ++self->vars;
+    self->vars[0] = self->vars[-1];
+    return 0;
+}
+
+static int on_config_exit(h2o_configurator_t *configurator, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct compress_configurator_t *self = (void *)configurator;
+
+    if (ctx->pathconf != NULL && (self->vars->gzip.quality != -1 || self->vars->brotli.quality != -1))
+        h2o_compress_register(ctx->pathconf, self->vars);
+
+    --self->vars;
+    return 0;
+}
+
+void h2o_compress_register_configurator(h2o_globalconf_t *conf)
+{
+    struct compress_configurator_t *c = (void *)h2o_configurator_create(conf, sizeof(*c));
+
+    c->super.enter = on_config_enter;
+    c->super.exit = on_config_exit;
+    h2o_configurator_define_command(&c->super, "compress", H2O_CONFIGURATOR_FLAG_ALL_LEVELS, on_config_compress);
+    h2o_configurator_define_command(&c->super, "compress-minimum-size",
+                                    H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_compress_min_size);
+    h2o_configurator_define_command(&c->super, "gzip", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_gzip);
+    c->vars = c->_vars_stack;
+    c->vars->gzip.quality = -1;
+    c->vars->brotli.quality = -1;
+}
diff --git a/debian/vendor-h2o/lib/handler/configurator/errordoc.c b/debian/vendor-h2o/lib/handler/configurator/errordoc.c
new file mode 100644
index 0000000..ab24923
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/configurator/errordoc.c
@@ -0,0 +1,203 @@
+/*
+ * Copyright (c) 2015-2016 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o.h"
+#include "h2o/configurator.h"
+
+struct errordoc_configurator_t {
+    h2o_configurator_t super;
+    h2o_mem_pool_t pool;
+    H2O_VECTOR(h2o_errordoc_t) * vars, _vars_stack[H2O_CONFIGURATOR_NUM_LEVELS + 1];
+};
+
+static int scan_and_check_status(h2o_configurator_command_t *cmd, yoml_t *value, int *slot)
+{
+    if (value->type != YOML_TYPE_SCALAR) {
+        h2o_configurator_errprintf(cmd, value, "status must be must be either of: scalar, sequence of scalar");
+        return -1;
+    }
+    if (h2o_configurator_scanf(cmd, value, "%d", slot) != 0)
+        return -1;
+    if (!(400 <= *slot && *slot <= 599)) {
+        h2o_configurator_errprintf(cmd, value, "status must be within range of 400 to 599");
+        return -1;
+    }
+    return 0;
+}
+
+static int register_errordoc(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *hash)
+{
+    struct errordoc_configurator_t *self = (void *)cmd->configurator;
+    int status[200];
+    size_t status_len = 0;
+    int parsed;
+    const char *url = NULL;
+    size_t i, j, k;
+    yoml_t *key, *value;
+
+    for (i = 0; i != hash->data.mapping.size; ++i) {
+        key = hash->data.mapping.elements[i].key;
+        value = hash->data.mapping.elements[i].value;
+        if (key->type != YOML_TYPE_SCALAR)
+            goto UnknownKeyError;
+        if (strcmp(key->data.scalar, "status") == 0) {
+            if (status_len != 0)
+                goto KeyAlreadyDefinedError;
+
+            if (value->type == YOML_TYPE_SEQUENCE) {
+                if (value->data.sequence.size == 0) {
+                    h2o_configurator_errprintf(cmd, value, "status sequence must not be empty");
+                    return -1;
+                }
+                for (j = 0; j != value->data.sequence.size; ++j) {
+                    if (scan_and_check_status(cmd, value->data.sequence.elements[j], &parsed) != 0)
+                        return -1;
+                    /* check the scanned status hasn't already appeared */
+                    for (k = 0; k != status_len; ++k) {
+                        if (status[k] == parsed) {
+                            h2o_configurator_errprintf(cmd, value, "status %d appears multiple times", status[k]);
+                            return -1;
+                        }
+                    }
+                    status[status_len++] = parsed;
+                }
+            } else {
+                if (scan_and_check_status(cmd, value, &parsed) != 0)
+                    return -1;
+                status[status_len++] = parsed;
+            }
+
+        } else if (strcmp(key->data.scalar, "url") == 0) {
+            if (url != NULL)
+                goto KeyAlreadyDefinedError;
+            if (value->type != YOML_TYPE_SCALAR) {
+                h2o_configurator_errprintf(cmd, value, "URL must be a scalar");
+                return -1;
+            }
+            url = value->data.scalar;
+        } else {
+            goto UnknownKeyError;
+        }
+    }
+
+    if (status_len == 0) {
+        h2o_configurator_errprintf(cmd, hash, "mandatory key `status` is not defined");
+        return -1;
+    }
+    if (url == NULL) {
+        h2o_configurator_errprintf(cmd, hash, "mandatory key `url` is not defined");
+        return -1;
+    }
+
+    h2o_iovec_t _url = h2o_strdup(&self->pool, url, SIZE_MAX);
+    for (i = 0; i != status_len; ++i){
+        /* register */
+        h2o_vector_reserve(&self->pool, self->vars, self->vars->size + 1);
+        h2o_errordoc_t *errordoc = self->vars->entries + self->vars->size++;
+        errordoc->status = status[i];
+        errordoc->url = _url;
+    }
+
+    return 0;
+
+UnknownKeyError:
+    h2o_configurator_errprintf(cmd, key, "key must be either of: `status`, `url`");
+    return -1;
+KeyAlreadyDefinedError:
+    h2o_configurator_errprintf(cmd, key, "the key cannot be defined more than once");
+    return -1;
+}
+
+static int on_config_errordoc(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    switch (node->type) {
+    case YOML_TYPE_SEQUENCE: {
+        size_t i;
+        for (i = 0; i != node->data.sequence.size; ++i) {
+            yoml_t *e = node->data.sequence.elements[i];
+            if (e->type != YOML_TYPE_MAPPING) {
+                h2o_configurator_errprintf(cmd, e, "element must be a mapping");
+                return -1;
+            }
+            if (register_errordoc(cmd, ctx, e) != 0)
+                return -1;
+        }
+        return 0;
+    }
+    case YOML_TYPE_MAPPING:
+        return register_errordoc(cmd, ctx, node);
+    default:
+        break;
+    }
+
+    h2o_configurator_errprintf(cmd, node, "argument must be either of: sequence, mapping");
+    return -1;
+}
+
+static int on_config_enter(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct errordoc_configurator_t *self = (void *)_self;
+
+    if (self->vars == self->_vars_stack) {
+        /* entering global level */
+        h2o_mem_init_pool(&self->pool);
+    }
+
+    /* copy vars */
+    memset(&self->vars[1], 0, sizeof(self->vars[1]));
+    h2o_vector_reserve(&self->pool, &self->vars[1], self->vars[0].size);
+    h2o_memcpy(self->vars[1].entries, self->vars[0].entries, sizeof(self->vars[0].entries[0]) * self->vars[0].size);
+    self->vars[1].size = self->vars[0].size;
+
+    ++self->vars;
+    return 0;
+}
+
+static int on_config_exit(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct errordoc_configurator_t *self = (void *)_self;
+
+    if (ctx->pathconf != NULL && self->vars->size != 0)
+        h2o_errordoc_register(ctx->pathconf, self->vars->entries, self->vars->size);
+
+    --self->vars;
+    if (self->vars == self->_vars_stack) {
+        /* exitting global level */
+        h2o_mem_clear_pool(&self->pool);
+    }
+
+    return 0;
+}
+
+void h2o_errordoc_register_configurator(h2o_globalconf_t *conf)
+{
+    struct errordoc_configurator_t *c = (void *)h2o_configurator_create(conf, sizeof(*c));
+
+    /* set default vars */
+    c->vars = c->_vars_stack;
+
+    /* setup handlers */
+    c->super.enter = on_config_enter;
+    c->super.exit = on_config_exit;
+
+    /* reproxy: ON | OFF */
+    h2o_configurator_define_command(&c->super, "error-doc", H2O_CONFIGURATOR_FLAG_ALL_LEVELS, on_config_errordoc);
+}
diff --git a/debian/vendor-h2o/lib/handler/configurator/expires.c b/debian/vendor-h2o/lib/handler/configurator/expires.c
new file mode 100644
index 0000000..01d404d
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/configurator/expires.c
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <inttypes.h>
+#include <stdio.h>
+#include <string.h>
+#include "h2o.h"
+#include "h2o/configurator.h"
+
+struct expires_configurator_t {
+    h2o_configurator_t super;
+    h2o_expires_args_t **args;
+    h2o_expires_args_t *_args_stack[H2O_CONFIGURATOR_NUM_LEVELS + 1];
+};
+
+static int on_config_expires(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct expires_configurator_t *self = (void *)cmd->configurator;
+    uint64_t value;
+    char unit[32];
+
+    if (strcasecmp(node->data.scalar, "OFF") == 0) {
+        free(*self->args);
+        *self->args = NULL;
+    } else if (sscanf(node->data.scalar, "%" SCNu64 " %31s", &value, unit) == 2) {
+        /* convert value to seconds depending on the unit */
+        if (strncasecmp(unit, H2O_STRLIT("second")) == 0) {
+            /* ok */
+        } else if (strncasecmp(unit, H2O_STRLIT("minute")) == 0) {
+            value *= 60;
+        } else if (strncasecmp(unit, H2O_STRLIT("hour")) == 0) {
+            value *= 60 * 60;
+        } else if (strncasecmp(unit, H2O_STRLIT("day")) == 0) {
+            value *= 24 * 60 * 60;
+        } else if (strncasecmp(unit, H2O_STRLIT("month")) == 0) {
+            value *= 30 * 24 * 60 * 60;
+        } else if (strncasecmp(unit, H2O_STRLIT("year")) == 0) {
+            value *= 365 * 30 * 24 * 60 * 60;
+        } else {
+            /* TODO add support for H2O_EXPIRES_MODE_MAX_ABSOLUTE that sets the Expires header? */
+            h2o_configurator_errprintf(cmd, node, "unknown unit:`%s` (see --help)", unit);
+            return -1;
+        }
+        /* save the value */
+        if (*self->args == NULL)
+            *self->args = h2o_mem_alloc(sizeof(**self->args));
+        (*self->args)->mode = H2O_EXPIRES_MODE_MAX_AGE;
+        (*self->args)->data.max_age = value;
+    } else {
+        h2o_configurator_errprintf(cmd, node,
+                                   "failed to parse the value, should be in form of: `<number> <unit>` or `OFF` (see --help)");
+        return -1;
+    }
+
+    return 0;
+}
+
+static int on_config_enter(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct expires_configurator_t *self = (void *)_self;
+
+    if (self->args[0] != NULL) {
+        /* duplicate */
+        assert(self->args[0]->mode == H2O_EXPIRES_MODE_MAX_AGE);
+        self->args[1] = h2o_mem_alloc(sizeof(**self->args));
+        *self->args[1] = *self->args[0];
+    } else {
+        self->args[1] = NULL;
+    }
+    ++self->args;
+    return 0;
+}
+
+static int on_config_exit(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct expires_configurator_t *self = (void *)_self;
+
+    if (*self->args != NULL) {
+        /* setup */
+        if (ctx->pathconf != NULL) {
+            h2o_expires_register(ctx->pathconf, *self->args);
+        }
+        /* destruct */
+        assert((*self->args)->mode == H2O_EXPIRES_MODE_MAX_AGE);
+        free(*self->args);
+        *self->args = NULL;
+    }
+
+    --self->args;
+    return 0;
+}
+
+void h2o_expires_register_configurator(h2o_globalconf_t *conf)
+{
+    struct expires_configurator_t *c = (void *)h2o_configurator_create(conf, sizeof(*c));
+
+    /* set default vars */
+    c->args = c->_args_stack;
+
+    /* setup handlers */
+    c->super.enter = on_config_enter;
+    c->super.exit = on_config_exit;
+    h2o_configurator_define_command(&c->super, "expires", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_expires);
+}
diff --git a/debian/vendor-h2o/lib/handler/configurator/fastcgi.c b/debian/vendor-h2o/lib/handler/configurator/fastcgi.c
new file mode 100644
index 0000000..bf89b7b
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/configurator/fastcgi.c
@@ -0,0 +1,388 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd. Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <arpa/inet.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <pwd.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/un.h>
+#include "h2o.h"
+#include "h2o/configurator.h"
+#include "h2o/serverutil.h"
+
+struct fastcgi_configurator_t {
+    h2o_configurator_t super;
+    h2o_fastcgi_config_vars_t *vars;
+    h2o_fastcgi_config_vars_t _vars_stack[H2O_CONFIGURATOR_NUM_LEVELS + 1];
+};
+
+static int on_config_timeout_io(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct fastcgi_configurator_t *self = (void *)cmd->configurator;
+    return h2o_configurator_scanf(cmd, node, "%" SCNu64, &self->vars->io_timeout);
+}
+
+static int on_config_timeout_keepalive(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct fastcgi_configurator_t *self = (void *)cmd->configurator;
+    return h2o_configurator_scanf(cmd, node, "%" SCNu64, &self->vars->keepalive_timeout);
+}
+
+static int on_config_document_root(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct fastcgi_configurator_t *self = (void *)cmd->configurator;
+
+    if (node->data.scalar[0] == '\0') {
+        /* unset */
+        self->vars->document_root = h2o_iovec_init(NULL, 0);
+    } else if (node->data.scalar[0] == '/') {
+        /* set */
+        self->vars->document_root = h2o_iovec_init(node->data.scalar, strlen(node->data.scalar));
+    } else {
+        h2o_configurator_errprintf(cmd, node, "value does not start from `/`");
+        return -1;
+    }
+    return 0;
+}
+
+static int on_config_send_delegated_uri(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct fastcgi_configurator_t *self = (void *)cmd->configurator;
+    ssize_t v;
+
+    if ((v = h2o_configurator_get_one_of(cmd, node, "OFF,ON")) == -1)
+        return -1;
+    self->vars->send_delegated_uri = (int)v;
+    return 0;
+}
+
+static int on_config_connect(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct fastcgi_configurator_t *self = (void *)cmd->configurator;
+    const char *hostname = "127.0.0.1", *servname = NULL, *type = "tcp";
+
+    /* fetch servname (and hostname) */
+    switch (node->type) {
+    case YOML_TYPE_SCALAR:
+        servname = node->data.scalar;
+        break;
+    case YOML_TYPE_MAPPING: {
+        yoml_t *t;
+        if ((t = yoml_get(node, "host")) != NULL) {
+            if (t->type != YOML_TYPE_SCALAR) {
+                h2o_configurator_errprintf(cmd, t, "`host` is not a string");
+                return -1;
+            }
+            hostname = t->data.scalar;
+        }
+        if ((t = yoml_get(node, "port")) == NULL) {
+            h2o_configurator_errprintf(cmd, node, "cannot find mandatory property `port`");
+            return -1;
+        }
+        if (t->type != YOML_TYPE_SCALAR) {
+            h2o_configurator_errprintf(cmd, node, "`port` is not a string");
+            return -1;
+        }
+        servname = t->data.scalar;
+        if ((t = yoml_get(node, "type")) != NULL) {
+            if (t->type != YOML_TYPE_SCALAR) {
+                h2o_configurator_errprintf(cmd, t, "`type` is not a string");
+                return -1;
+            }
+            type = t->data.scalar;
+        }
+    } break;
+    default:
+        h2o_configurator_errprintf(cmd, node,
+                                   "value must be a string or a mapping (with keys: `port` and optionally `host` and `type`)");
+        return -1;
+    }
+
+    if (strcmp(type, "unix") == 0) {
+        /* unix socket */
+        struct sockaddr_un sa;
+        memset(&sa, 0, sizeof(sa));
+        if (strlen(servname) >= sizeof(sa.sun_path)) {
+            h2o_configurator_errprintf(cmd, node, "path:%s is too long as a unix socket name", servname);
+            return -1;
+        }
+        sa.sun_family = AF_UNIX;
+        strcpy(sa.sun_path, servname);
+        h2o_fastcgi_register_by_address(ctx->pathconf, (void *)&sa, sizeof(sa), self->vars);
+    } else if (strcmp(type, "tcp") == 0) {
+        /* tcp socket */
+        uint16_t port;
+        if (sscanf(servname, "%" SCNu16, &port) != 1) {
+            h2o_configurator_errprintf(cmd, node, "invalid port number:%s", servname);
+            return -1;
+        }
+        h2o_fastcgi_register_by_hostport(ctx->pathconf, hostname, port, self->vars);
+    } else {
+        h2o_configurator_errprintf(cmd, node, "unknown listen type: %s", type);
+        return -1;
+    }
+
+    return 0;
+}
+
+static int create_spawnproc(h2o_configurator_command_t *cmd, yoml_t *node, const char *dirname, char *const *argv,
+                            struct sockaddr_un *sa, struct passwd *pw)
+{
+    int ret, listen_fd = -1, pipe_fds[2] = {-1, -1};
+
+    /* build socket path */
+    sa->sun_family = AF_UNIX;
+    ret = snprintf(sa->sun_path, sizeof(sa->sun_path), "%s/_", dirname);
+    if (ret < 0 || ret >= sizeof(sa->sun_path)) {
+        h2o_configurator_errprintf(cmd, node, "unix socket path too long: %s", dirname);
+        goto Error;
+    }
+
+    /* create socket */
+    if ((listen_fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
+        h2o_configurator_errprintf(cmd, node, "socket(2) failed: %s", strerror(errno));
+        goto Error;
+    }
+    if (bind(listen_fd, (void *)sa, sizeof(*sa)) != 0) {
+        h2o_configurator_errprintf(cmd, node, "bind(2) failed: %s", strerror(errno));
+        goto Error;
+    }
+    if (listen(listen_fd, H2O_SOMAXCONN) != 0) {
+        h2o_configurator_errprintf(cmd, node, "listen(2) failed: %s", strerror(errno));
+        goto Error;
+    }
+    /* change ownership of socket */
+    if (pw != NULL && chown(sa->sun_path, pw->pw_uid, pw->pw_gid) != 0) {
+        h2o_configurator_errprintf(cmd, node, "chown(2) failed to change ownership of socket:%s:%s", sa->sun_path, strerror(errno));
+        goto Error;
+    }
+
+    /* create pipe which is used to notify the termination of the server */
+    if (pipe(pipe_fds) != 0) {
+        h2o_configurator_errprintf(cmd, node, "pipe(2) failed: %s", strerror(errno));
+        pipe_fds[0] = -1;
+        pipe_fds[1] = -1;
+        goto Error;
+    }
+    if (fcntl(pipe_fds[1], F_SETFD, FD_CLOEXEC) < 0)
+        goto Error;
+
+    /* spawn */
+    int mapped_fds[] = {listen_fd, 0,   /* listen_fd to 0 */
+                        pipe_fds[0], 5, /* pipe_fds[0] to 5 */
+                        -1};
+    pid_t pid = h2o_spawnp(argv[0], argv, mapped_fds, 0);
+    if (pid == -1) {
+        fprintf(stderr, "[lib/handler/fastcgi.c] failed to launch helper program %s:%s\n", argv[0], strerror(errno));
+        goto Error;
+    }
+
+    close(listen_fd);
+    listen_fd = -1;
+    close(pipe_fds[0]);
+    pipe_fds[0] = -1;
+
+    return pipe_fds[1];
+
+Error:
+    if (pipe_fds[0] != -1)
+        close(pipe_fds[0]);
+    if (pipe_fds[1])
+        close(pipe_fds[1]);
+    if (listen_fd != -1)
+        close(listen_fd);
+    unlink(sa->sun_path);
+    return -1;
+}
+
+static void spawnproc_on_dispose(h2o_fastcgi_handler_t *handler, void *data)
+{
+    int pipe_fd = (int)((char *)data - (char *)NULL);
+    close(pipe_fd);
+}
+
+static int on_config_spawn(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct fastcgi_configurator_t *self = (void *)cmd->configurator;
+    char *spawn_user = NULL, *spawn_cmd;
+    char *kill_on_close_cmd_path = NULL, *setuidgid_cmd_path = NULL;
+    char dirname[] = "/tmp/h2o.fcgisock.XXXXXX";
+    char *argv[10];
+    int spawner_fd;
+    struct sockaddr_un sa;
+    h2o_fastcgi_config_vars_t config_vars;
+    int ret = -1;
+    struct passwd h2o_user_pwbuf, *h2o_user_pw;
+    char h2o_user_buf[65536];
+
+    memset(&sa, 0, sizeof(sa));
+
+    switch (node->type) {
+    case YOML_TYPE_SCALAR:
+        spawn_user = ctx->globalconf->user;
+        spawn_cmd = node->data.scalar;
+        break;
+    case YOML_TYPE_MAPPING: {
+        yoml_t *t;
+        if ((t = yoml_get(node, "command")) == NULL) {
+            h2o_configurator_errprintf(cmd, node, "mandatory attribute `command` does not exist");
+            return -1;
+        }
+        if (t->type != YOML_TYPE_SCALAR) {
+            h2o_configurator_errprintf(cmd, node, "attribute `command` must be scalar");
+            return -1;
+        }
+        spawn_cmd = t->data.scalar;
+        spawn_user = ctx->globalconf->user;
+        if ((t = yoml_get(node, "user")) != NULL) {
+            if (t->type != YOML_TYPE_SCALAR) {
+                h2o_configurator_errprintf(cmd, node, "attribute `user` must be scalar");
+                return -1;
+            }
+            spawn_user = t->data.scalar;
+        }
+    } break;
+    default:
+        h2o_configurator_errprintf(cmd, node, "argument must be scalar or mapping");
+        return -1;
+    }
+
+    /* obtain uid & gid of the client that connects to the FastCGI daemon (i.e. H2O after dropping privileges) */
+    if (ctx->globalconf->user != NULL) {
+        /* change ownership of temporary directory */
+        if (getpwnam_r(ctx->globalconf->user, &h2o_user_pwbuf, h2o_user_buf, sizeof(h2o_user_buf), &h2o_user_pw) != 0 ||
+            h2o_user_pw == NULL) {
+            h2o_configurator_errprintf(cmd, node, "getpwnam_r(3) failed to obtain uid of user:%s", ctx->globalconf->user);
+            goto Exit;
+        }
+    } else {
+        h2o_user_pw = NULL;
+    }
+
+    { /* build args */
+        size_t i = 0;
+        argv[i++] = kill_on_close_cmd_path = h2o_configurator_get_cmd_path("share/h2o/kill-on-close");
+        argv[i++] = "--rm";
+        argv[i++] = dirname;
+        argv[i++] = "--";
+        if (spawn_user != NULL) {
+            argv[i++] = setuidgid_cmd_path = h2o_configurator_get_cmd_path("share/h2o/setuidgid");
+            argv[i++] = spawn_user;
+        }
+        argv[i++] = "/bin/sh";
+        argv[i++] = "-c";
+        argv[i++] = spawn_cmd;
+        argv[i++] = NULL;
+        assert(i <= sizeof(argv) / sizeof(argv[0]));
+    }
+
+    if (ctx->dry_run) {
+        dirname[0] = '\0';
+        spawner_fd = -1;
+        sa.sun_family = AF_UNIX;
+        strcpy(sa.sun_path, "/dry-run.nonexistent");
+    } else {
+        /* create temporary directory */
+        if (mkdtemp(dirname) == NULL) {
+            h2o_configurator_errprintf(cmd, node, "mkdtemp(3) failed to create temporary directory:%s:%s", dirname,
+                                       strerror(errno));
+            dirname[0] = '\0';
+            goto Exit;
+        }
+        /* change ownership of temporary directory */
+        if (h2o_user_pw != NULL && chown(dirname, h2o_user_pw->pw_uid, h2o_user_pw->pw_gid) != 0) {
+            h2o_configurator_errprintf(cmd, node, "chown(2) failed to change ownership of temporary directory:%s:%s", dirname,
+                                       strerror(errno));
+            goto Exit;
+        }
+        /* launch spawnfcgi command */
+        if ((spawner_fd = create_spawnproc(cmd, node, dirname, argv, &sa, h2o_user_pw)) == -1) {
+            goto Exit;
+        }
+    }
+
+    config_vars = *self->vars;
+    config_vars.callbacks.dispose = spawnproc_on_dispose;
+    config_vars.callbacks.data = (char *)NULL + spawner_fd;
+    h2o_fastcgi_register_by_address(ctx->pathconf, (void *)&sa, sizeof(sa), &config_vars);
+
+    ret = 0;
+Exit:
+    if (dirname[0] != '\0')
+        unlink(dirname);
+    free(kill_on_close_cmd_path);
+    free(setuidgid_cmd_path);
+    return ret;
+}
+
+static int on_config_enter(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct fastcgi_configurator_t *self = (void *)_self;
+
+    memcpy(self->vars + 1, self->vars, sizeof(*self->vars));
+    ++self->vars;
+    return 0;
+}
+
+static int on_config_exit(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct fastcgi_configurator_t *self = (void *)_self;
+
+    --self->vars;
+    return 0;
+}
+
+void h2o_fastcgi_register_configurator(h2o_globalconf_t *conf)
+{
+    struct fastcgi_configurator_t *c = (void *)h2o_configurator_create(conf, sizeof(*c));
+
+    /* set default vars */
+    c->vars = c->_vars_stack;
+    c->vars->io_timeout = H2O_DEFAULT_FASTCGI_IO_TIMEOUT;
+    c->vars->keepalive_timeout = 0;
+
+    /* setup handlers */
+    c->super.enter = on_config_enter;
+    c->super.exit = on_config_exit;
+
+    h2o_configurator_define_command(&c->super, "fastcgi.connect",
+                                    H2O_CONFIGURATOR_FLAG_PATH | H2O_CONFIGURATOR_FLAG_EXTENSION | H2O_CONFIGURATOR_FLAG_DEFERRED,
+                                    on_config_connect);
+    h2o_configurator_define_command(&c->super, "fastcgi.spawn",
+                                    H2O_CONFIGURATOR_FLAG_PATH | H2O_CONFIGURATOR_FLAG_EXTENSION | H2O_CONFIGURATOR_FLAG_DEFERRED,
+                                    on_config_spawn);
+    h2o_configurator_define_command(&c->super, "fastcgi.timeout.io",
+                                    H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_timeout_io);
+    h2o_configurator_define_command(&c->super, "fastcgi.timeout.keepalive",
+                                    H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_timeout_keepalive);
+    h2o_configurator_define_command(&c->super, "fastcgi.document_root",
+                                    H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_document_root);
+    h2o_configurator_define_command(&c->super, "fastcgi.send-delegated-uri",
+                                    H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_send_delegated_uri);
+}
diff --git a/debian/vendor-h2o/lib/handler/configurator/file.c b/debian/vendor-h2o/lib/handler/configurator/file.c
new file mode 100644
index 0000000..c1c779c
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/configurator/file.c
@@ -0,0 +1,197 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o.h"
+#include "h2o/configurator.h"
+
+struct st_h2o_file_config_vars_t {
+    const char **index_files;
+    int flags;
+};
+
+struct st_h2o_file_configurator_t {
+    h2o_configurator_t super;
+    struct st_h2o_file_config_vars_t *vars;
+    struct st_h2o_file_config_vars_t _vars_stack[H2O_CONFIGURATOR_NUM_LEVELS + 1];
+};
+
+static int on_config_dir(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_h2o_file_configurator_t *self = (void *)cmd->configurator;
+
+    h2o_file_register(ctx->pathconf, node->data.scalar, self->vars->index_files, *ctx->mimemap, self->vars->flags);
+    return 0;
+}
+
+static int on_config_file(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_h2o_file_configurator_t *self = (void *)cmd->configurator;
+    h2o_mimemap_type_t *mime_type =
+        h2o_mimemap_get_type_by_extension(*ctx->mimemap, h2o_get_filext(node->data.scalar, strlen(node->data.scalar)));
+    h2o_file_register_file(ctx->pathconf, node->data.scalar, mime_type, self->vars->flags);
+    return 0;
+}
+
+static int on_config_index(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_h2o_file_configurator_t *self = (void *)cmd->configurator;
+    size_t i;
+
+    free(self->vars->index_files);
+    self->vars->index_files = h2o_mem_alloc(sizeof(self->vars->index_files[0]) * (node->data.sequence.size + 1));
+    for (i = 0; i != node->data.sequence.size; ++i) {
+        yoml_t *element = node->data.sequence.elements[i];
+        if (element->type != YOML_TYPE_SCALAR) {
+            h2o_configurator_errprintf(cmd, element, "argument must be a sequence of scalars");
+            return -1;
+        }
+        self->vars->index_files[i] = element->data.scalar;
+    }
+    self->vars->index_files[i] = NULL;
+
+    return 0;
+}
+
+static int on_config_etag(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_h2o_file_configurator_t *self = (void *)cmd->configurator;
+
+    switch (h2o_configurator_get_one_of(cmd, node, "OFF,ON")) {
+    case 0: /* off */
+        self->vars->flags |= H2O_FILE_FLAG_NO_ETAG;
+        break;
+    case 1: /* on */
+        self->vars->flags &= ~H2O_FILE_FLAG_NO_ETAG;
+        break;
+    default: /* error */
+        return -1;
+    }
+
+    return 0;
+}
+
+static int on_config_send_compressed(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_h2o_file_configurator_t *self = (void *)cmd->configurator;
+
+    switch (h2o_configurator_get_one_of(cmd, node, "OFF,ON,gunzip")) {
+    case 0: /* off */
+        self->vars->flags &= ~H2O_FILE_FLAG_SEND_COMPRESSED;
+        break;
+    case 1: /* on */
+        self->vars->flags |= H2O_FILE_FLAG_SEND_COMPRESSED;
+        break;
+    case 2: /* gunzip */
+        self->vars->flags |= (H2O_FILE_FLAG_SEND_COMPRESSED | H2O_FILE_FLAG_GUNZIP);
+        break;
+    default: /* error */
+        return -1;
+    }
+
+    return 0;
+}
+
+static int on_config_dir_listing(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_h2o_file_configurator_t *self = (void *)cmd->configurator;
+
+    switch (h2o_configurator_get_one_of(cmd, node, "OFF,ON")) {
+    case 0: /* off */
+        self->vars->flags &= ~H2O_FILE_FLAG_DIR_LISTING;
+        break;
+    case 1: /* on */
+        self->vars->flags |= H2O_FILE_FLAG_DIR_LISTING;
+        break;
+    default: /* error */
+        return -1;
+    }
+
+    return 0;
+}
+
+static const char **dup_strlist(const char **s)
+{
+    size_t i;
+    const char **ret;
+
+    for (i = 0; s[i] != NULL; ++i)
+        ;
+    ret = h2o_mem_alloc(sizeof(*ret) * (i + 1));
+    for (i = 0; s[i] != NULL; ++i)
+        ret[i] = s[i];
+    ret[i] = NULL;
+
+    return ret;
+}
+
+static int on_config_enter(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_h2o_file_configurator_t *self = (void *)_self;
+    ++self->vars;
+    self->vars[0].index_files = dup_strlist(self->vars[-1].index_files);
+    self->vars[0].flags = self->vars[-1].flags;
+    return 0;
+}
+
+static int on_config_exit(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_h2o_file_configurator_t *self = (void *)_self;
+    free(self->vars->index_files);
+    --self->vars;
+    return 0;
+}
+
+void h2o_file_register_configurator(h2o_globalconf_t *globalconf)
+{
+    struct st_h2o_file_configurator_t *self = (void *)h2o_configurator_create(globalconf, sizeof(*self));
+
+    self->super.enter = on_config_enter;
+    self->super.exit = on_config_exit;
+    self->vars = self->_vars_stack;
+    self->vars->index_files = h2o_file_default_index_files;
+
+    h2o_configurator_define_command(&self->super, "file.dir", H2O_CONFIGURATOR_FLAG_PATH | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR |
+                                                                  H2O_CONFIGURATOR_FLAG_DEFERRED,
+                                    on_config_dir);
+    h2o_configurator_define_command(&self->super, "file.file", H2O_CONFIGURATOR_FLAG_PATH | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR |
+                                                                   H2O_CONFIGURATOR_FLAG_DEFERRED,
+                                    on_config_file);
+    h2o_configurator_define_command(&self->super, "file.index",
+                                    (H2O_CONFIGURATOR_FLAG_ALL_LEVELS & ~H2O_CONFIGURATOR_FLAG_EXTENSION) |
+                                        H2O_CONFIGURATOR_FLAG_EXPECT_SEQUENCE,
+                                    on_config_index);
+    h2o_configurator_define_command(&self->super, "file.etag",
+                                    (H2O_CONFIGURATOR_FLAG_ALL_LEVELS & ~H2O_CONFIGURATOR_FLAG_EXTENSION) |
+                                        H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_etag);
+    h2o_configurator_define_command(&self->super, "file.send-compressed",
+                                    (H2O_CONFIGURATOR_FLAG_ALL_LEVELS & ~H2O_CONFIGURATOR_FLAG_EXTENSION) |
+                                        H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_send_compressed);
+    h2o_configurator_define_command(&self->super, "file.send-gzip",
+                                    (H2O_CONFIGURATOR_FLAG_ALL_LEVELS & ~H2O_CONFIGURATOR_FLAG_EXTENSION) |
+                                        H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_send_compressed);
+    h2o_configurator_define_command(&self->super, "file.dirlisting",
+                                    (H2O_CONFIGURATOR_FLAG_ALL_LEVELS & ~H2O_CONFIGURATOR_FLAG_EXTENSION) |
+                                        H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_dir_listing);
+}
diff --git a/debian/vendor-h2o/lib/handler/configurator/headers.c b/debian/vendor-h2o/lib/handler/configurator/headers.c
new file mode 100644
index 0000000..68536c0
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/configurator/headers.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <string.h>
+#include "h2o.h"
+#include "h2o/configurator.h"
+
+struct headers_configurator_t {
+    h2o_configurator_t super;
+    h2o_headers_command_t **cmds, *_cmd_stack[H2O_CONFIGURATOR_NUM_LEVELS + 1];
+};
+
+static int on_config_enter(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct headers_configurator_t *self = (void *)_self;
+
+    self->cmds[1] = self->cmds[0];
+    if (self->cmds[1] != NULL)
+        h2o_mem_addref_shared(self->cmds[1]);
+
+    ++self->cmds;
+    return 0;
+}
+
+static int on_config_exit(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct headers_configurator_t *self = (void *)_self;
+
+    if (ctx->pathconf != NULL && *self->cmds != NULL) {
+        if (*self->cmds != NULL)
+            h2o_mem_addref_shared(*self->cmds);
+        h2o_headers_register(ctx->pathconf, *self->cmds);
+    }
+
+    if (*self->cmds != NULL)
+        h2o_mem_release_shared(*self->cmds);
+    --self->cmds;
+    return 0;
+}
+
+static h2o_headers_command_t **get_headers_commands(h2o_configurator_t *_self)
+{
+    struct headers_configurator_t *self = (void *)_self;
+    return self->cmds;
+}
+
+void h2o_headers_register_configurator(h2o_globalconf_t *conf)
+{
+    struct headers_configurator_t *c = (void *)h2o_configurator_create(conf, sizeof(*c));
+
+    c->super.enter = on_config_enter;
+    c->super.exit = on_config_exit;
+
+    h2o_configurator_define_headers_commands(conf, &c->super, "header", get_headers_commands);
+    c->cmds = c->_cmd_stack;
+}
diff --git a/debian/vendor-h2o/lib/handler/configurator/headers_util.c b/debian/vendor-h2o/lib/handler/configurator/headers_util.c
new file mode 100644
index 0000000..c05b9b7
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/configurator/headers_util.c
@@ -0,0 +1,143 @@
+#include "h2o.h"
+#include "h2o/configurator.h"
+
+struct headers_util_configurator_t {
+    h2o_configurator_t super;
+    h2o_configurator_t *child;
+    h2o_configurator_get_headers_commands_cb get_commands;
+};
+
+static int extract_name(const char *src, size_t len, h2o_iovec_t **_name)
+{
+    h2o_iovec_t name;
+    const h2o_token_t *name_token;
+
+    name = h2o_str_stripws(src, len);
+    if (name.len == 0)
+        return -1;
+
+    name = h2o_strdup(NULL, name.base, name.len);
+    h2o_strtolower(name.base, name.len);
+
+    if ((name_token = h2o_lookup_token(name.base, name.len)) != NULL) {
+        *_name = (h2o_iovec_t *)&name_token->buf;
+        free(name.base);
+    } else {
+        *_name = h2o_mem_alloc(sizeof(**_name));
+        **_name = name;
+    }
+
+    return 0;
+}
+
+static int extract_name_value(const char *src, h2o_iovec_t **name, h2o_iovec_t *value)
+{
+    const char *colon = strchr(src, ':');
+
+    if (colon == NULL)
+        return -1;
+
+    if (extract_name(src, colon - src, name) != 0)
+        return -1;
+    *value = h2o_str_stripws(colon + 1, strlen(colon + 1));
+    *value = h2o_strdup(NULL, value->base, value->len);
+
+    return 0;
+}
+
+static int add_cmd(h2o_configurator_command_t *cmd, yoml_t *node, int cmd_id, h2o_iovec_t *name, h2o_iovec_t value,
+                   h2o_headers_command_t **cmds)
+{
+    if (h2o_iovec_is_token(name)) {
+        const h2o_token_t *token = (void *)name;
+        if (h2o_headers_is_prohibited_name(token)) {
+            h2o_configurator_errprintf(cmd, node, "the named header cannot be rewritten");
+            return -1;
+        }
+    }
+
+    h2o_headers_append_command(cmds, cmd_id, name, value);
+    return 0;
+}
+
+static int on_config_header_2arg(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, int cmd_id, yoml_t *node,
+                                 h2o_headers_command_t **headers_cmds)
+{
+    h2o_iovec_t *name, value;
+
+    if (extract_name_value(node->data.scalar, &name, &value) != 0) {
+        h2o_configurator_errprintf(cmd, node, "failed to parse the value; should be in form of `name: value`");
+        return -1;
+    }
+    if (add_cmd(cmd, node, cmd_id, name, value, headers_cmds) != 0) {
+        if (!h2o_iovec_is_token(name))
+            free(name->base);
+        free(value.base);
+        return -1;
+    }
+    return 0;
+}
+
+static int on_config_header_unset(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    h2o_iovec_t *name;
+    struct headers_util_configurator_t *self = (void *)cmd->configurator;
+
+    if (extract_name(node->data.scalar, strlen(node->data.scalar), &name) != 0) {
+        h2o_configurator_errprintf(cmd, node, "invalid header name");
+        return -1;
+    }
+    if (add_cmd(cmd, node, H2O_HEADERS_CMD_UNSET, name, (h2o_iovec_t){NULL}, self->get_commands(self->child)) != 0) {
+        if (!h2o_iovec_is_token(name))
+            free(name->base);
+        return -1;
+    }
+    return 0;
+}
+
+#define DEFINE_2ARG(fn, cmd_id)                                                                                                    \
+    static int fn(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)                                  \
+    {                                                                                                                              \
+        struct headers_util_configurator_t *self = (void *)cmd->configurator;                                                      \
+        return on_config_header_2arg(cmd, ctx, cmd_id, node, self->get_commands(self->child));                                     \
+    }
+
+DEFINE_2ARG(on_config_header_add, H2O_HEADERS_CMD_ADD)
+DEFINE_2ARG(on_config_header_append, H2O_HEADERS_CMD_APPEND)
+DEFINE_2ARG(on_config_header_merge, H2O_HEADERS_CMD_MERGE)
+DEFINE_2ARG(on_config_header_set, H2O_HEADERS_CMD_SET)
+DEFINE_2ARG(on_config_header_setifempty, H2O_HEADERS_CMD_SETIFEMPTY)
+
+#undef DEFINE_2ARG
+
+void h2o_configurator_define_headers_commands(h2o_globalconf_t *global_conf, h2o_configurator_t *conf, const char *prefix,
+                                              h2o_configurator_get_headers_commands_cb get_commands)
+{
+    struct headers_util_configurator_t *c = (void *)h2o_configurator_create(global_conf, sizeof(*c));
+    c->child = conf;
+    c->get_commands = get_commands;
+    size_t prefix_len = strlen(prefix);
+
+#define DEFINE_CMD_NAME(name, suffix)                                                                                              \
+    char *name = h2o_mem_alloc(prefix_len + sizeof(suffix));                                                                       \
+    memcpy(name, prefix, prefix_len);                                                                                              \
+    memcpy(name + prefix_len, suffix, sizeof(suffix))
+
+    DEFINE_CMD_NAME(add_directive, ".add");
+    DEFINE_CMD_NAME(append_directive, ".append");
+    DEFINE_CMD_NAME(merge_directive, ".merge");
+    DEFINE_CMD_NAME(set_directive, ".set");
+    DEFINE_CMD_NAME(setifempty_directive, ".setifempty");
+    DEFINE_CMD_NAME(unset_directive, ".unset");
+#undef DEFINE_CMD_NAME
+
+#define DEFINE_CMD(name, cb)                                                                                                       \
+    h2o_configurator_define_command(&c->super, name, H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, cb)
+    DEFINE_CMD(add_directive, on_config_header_add);
+    DEFINE_CMD(append_directive, on_config_header_append);
+    DEFINE_CMD(merge_directive, on_config_header_merge);
+    DEFINE_CMD(set_directive, on_config_header_set);
+    DEFINE_CMD(setifempty_directive, on_config_header_setifempty);
+    DEFINE_CMD(unset_directive, on_config_header_unset);
+#undef DEFINE_CMD
+}
diff --git a/debian/vendor-h2o/lib/handler/configurator/http2_debug_state.c b/debian/vendor-h2o/lib/handler/configurator/http2_debug_state.c
new file mode 100644
index 0000000..419da9d
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/configurator/http2_debug_state.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2016 DeNA Co., Ltd., Ichito Nagata
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o.h"
+#include "h2o/configurator.h"
+
+static int on_config_debug_state(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    switch (h2o_configurator_get_one_of(cmd, node, "minimum,hpack")) {
+    case 0: /* minimum */
+        h2o_http2_debug_state_register(ctx->hostconf, 0);
+        return 0;
+    case 1: /* with hpack state*/
+        h2o_http2_debug_state_register(ctx->hostconf, 1);
+        return 0;
+    default: /* error */
+        return -1;
+    }
+}
+
+void h2o_http2_debug_state_register_configurator(h2o_globalconf_t *conf)
+{
+    struct st_h2o_configurator_t *c = (void *)h2o_configurator_create(conf, sizeof(*c));
+
+    h2o_configurator_define_command(c, "http2-debug-state", H2O_CONFIGURATOR_FLAG_HOST | H2O_CONFIGURATOR_FLAG_DEFERRED |
+                                                                H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_debug_state);
+}
diff --git a/debian/vendor-h2o/lib/handler/configurator/mruby.c b/debian/vendor-h2o/lib/handler/configurator/mruby.c
new file mode 100644
index 0000000..1cef8f4
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/configurator/mruby.c
@@ -0,0 +1,177 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku, Ryosuke Matsumoto
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <errno.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "h2o.h"
+#include "h2o/configurator.h"
+#include "h2o/mruby_.h"
+
+struct mruby_configurator_t {
+    h2o_configurator_t super;
+    h2o_mruby_config_vars_t *vars;
+    h2o_mruby_config_vars_t _vars_stack[H2O_CONFIGURATOR_NUM_LEVELS + 1];
+    mrb_state *mrb; /* will be lazily initialized */
+};
+
+static int compile_test(mrb_state *mrb, h2o_mruby_config_vars_t *config, char *errbuf)
+{
+    mrb_value result = h2o_mruby_compile_code(mrb, config, errbuf);
+    int ok = !mrb_nil_p(result);
+    return ok;
+}
+
+static mrb_state *get_mrb(struct mruby_configurator_t *self)
+{
+    if (self->mrb == NULL) {
+        self->mrb = mrb_open();
+        if (self->mrb == NULL) {
+            fprintf(stderr, "%s: no memory\n", H2O_MRUBY_MODULE_NAME);
+            abort();
+        }
+        h2o_mruby_setup_globals(self->mrb);
+    }
+    return self->mrb;
+}
+
+static int on_config_mruby_handler(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct mruby_configurator_t *self = (void *)cmd->configurator;
+
+    /* set source */
+    self->vars->source = h2o_strdup(NULL, node->data.scalar, SIZE_MAX);
+    self->vars->path = node->filename;
+    self->vars->lineno = (int)node->line + 1;
+
+    /* check if there is any error in source */
+    char errbuf[1024];
+    if (!compile_test(get_mrb(self), self->vars, errbuf)) {
+        h2o_configurator_errprintf(cmd, node, "ruby compile error:%s", errbuf);
+        return -1;
+    }
+
+    /* register */
+    h2o_mruby_register(ctx->pathconf, self->vars);
+
+    return 0;
+}
+
+static int on_config_mruby_handler_file(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct mruby_configurator_t *self = (void *)cmd->configurator;
+    FILE *fp = NULL;
+    h2o_iovec_t buf = {NULL};
+    int ret = -1;
+
+    /* open and read file */
+    if ((fp = fopen(node->data.scalar, "rt")) == NULL) {
+        h2o_configurator_errprintf(cmd, node, "failed to open file: %s:%s", node->data.scalar, strerror(errno));
+        goto Exit;
+    }
+    while (!feof(fp)) {
+        buf.base = h2o_mem_realloc(buf.base, buf.len + 65536);
+        buf.len += fread(buf.base + buf.len, 1, 65536, fp);
+        if (ferror(fp)) {
+            h2o_configurator_errprintf(cmd, node, "I/O error occurred while reading file:%s:%s", node->data.scalar,
+                                       strerror(errno));
+            goto Exit;
+        }
+    }
+
+    /* set source */
+    self->vars->source = buf;
+    buf.base = NULL;
+    self->vars->path = node->data.scalar; /* the value is retained until the end of the configuration phase */
+    self->vars->lineno = 0;
+
+    /* check if there is any error in source */
+    char errbuf[1024];
+    if (!compile_test(get_mrb(self), self->vars, errbuf)) {
+        h2o_configurator_errprintf(cmd, node, "failed to compile file:%s:%s", node->data.scalar, errbuf);
+        goto Exit;
+    }
+
+    /* register */
+    h2o_mruby_register(ctx->pathconf, self->vars);
+
+    ret = 0;
+
+Exit:
+    if (fp != NULL)
+        fclose(fp);
+    if (buf.base != NULL)
+        free(buf.base);
+    return ret;
+}
+
+static int on_config_mruby_handler_path(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    h2o_configurator_errprintf(cmd, node, "the command has been removed; see https://github.com/h2o/h2o/pull/467");
+    return -1;
+}
+
+static int on_config_enter(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct mruby_configurator_t *self = (void *)_self;
+
+    memcpy(self->vars + 1, self->vars, sizeof(*self->vars));
+    ++self->vars;
+    return 0;
+}
+
+static int on_config_exit(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct mruby_configurator_t *self = (void *)_self;
+
+    /* free if the to-be-exitted frame level contains a different source */
+    if (self->vars[-1].source.base != self->vars[0].source.base)
+        free(self->vars->source.base);
+
+    --self->vars;
+
+    /* release mrb only when global configuration exited */
+    if (self->mrb != NULL && ctx->parent == NULL) {
+        mrb_close(self->mrb);
+        self->mrb = NULL;
+    }
+
+    return 0;
+}
+
+void h2o_mruby_register_configurator(h2o_globalconf_t *conf)
+{
+    struct mruby_configurator_t *c = (void *)h2o_configurator_create(conf, sizeof(*c));
+
+    c->vars = c->_vars_stack;
+    c->super.enter = on_config_enter;
+    c->super.exit = on_config_exit;
+
+    h2o_configurator_define_command(&c->super, "mruby.handler", H2O_CONFIGURATOR_FLAG_PATH | H2O_CONFIGURATOR_FLAG_DEFERRED |
+                                                                    H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_mruby_handler);
+    h2o_configurator_define_command(&c->super, "mruby.handler-file", H2O_CONFIGURATOR_FLAG_PATH | H2O_CONFIGURATOR_FLAG_DEFERRED |
+                                                                         H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_mruby_handler_file);
+    h2o_configurator_define_command(&c->super, "mruby.handler_path", H2O_CONFIGURATOR_FLAG_PATH | H2O_CONFIGURATOR_FLAG_DEFERRED,
+                                    on_config_mruby_handler_path);
+}
diff --git a/debian/vendor-h2o/lib/handler/configurator/proxy.c b/debian/vendor-h2o/lib/handler/configurator/proxy.c
new file mode 100644
index 0000000..cfc9cbf
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/configurator/proxy.c
@@ -0,0 +1,392 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <inttypes.h>
+#include <errno.h>
+#include <stdio.h>
+#include <openssl/crypto.h>
+#include <openssl/err.h>
+#include <openssl/ssl.h>
+#include "h2o.h"
+#include "h2o/configurator.h"
+
+struct proxy_configurator_t {
+    h2o_configurator_t super;
+    h2o_proxy_config_vars_t *vars;
+    h2o_proxy_config_vars_t _vars_stack[H2O_CONFIGURATOR_NUM_LEVELS + 1];
+};
+
+static int on_config_timeout_io(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct proxy_configurator_t *self = (void *)cmd->configurator;
+    return h2o_configurator_scanf(cmd, node, "%" SCNu64, &self->vars->io_timeout);
+}
+
+static int on_config_timeout_keepalive(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct proxy_configurator_t *self = (void *)cmd->configurator;
+    return h2o_configurator_scanf(cmd, node, "%" SCNu64, &self->vars->keepalive_timeout);
+}
+
+static int on_config_preserve_host(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct proxy_configurator_t *self = (void *)cmd->configurator;
+    ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON");
+    if (ret == -1)
+        return -1;
+    self->vars->preserve_host = (int)ret;
+    return 0;
+}
+
+static int on_config_proxy_protocol(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct proxy_configurator_t *self = (void *)cmd->configurator;
+    ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON");
+    if (ret == -1)
+        return -1;
+    self->vars->use_proxy_protocol = (int)ret;
+    return 0;
+}
+
+static int on_config_websocket_timeout(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct proxy_configurator_t *self = (void *)cmd->configurator;
+    return h2o_configurator_scanf(cmd, node, "%" SCNu64, &self->vars->websocket.timeout);
+}
+
+static int on_config_websocket(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct proxy_configurator_t *self = (void *)cmd->configurator;
+    ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON");
+    if (ret == -1)
+        return -1;
+    self->vars->websocket.enabled = (int)ret;
+    return 0;
+}
+
+static SSL_CTX *create_ssl_ctx(void)
+{
+    SSL_CTX *ctx = SSL_CTX_new(SSLv23_client_method());
+    SSL_CTX_set_options(ctx, SSL_CTX_get_options(ctx) | SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3);
+    return ctx;
+}
+
+static h2o_cache_t *create_ssl_session_cache(size_t capacity, uint64_t duration)
+{
+    return h2o_cache_create(H2O_CACHE_FLAG_MULTITHREADED, capacity, duration, h2o_socket_ssl_destroy_session_cache_entry);
+}
+
+static void update_ssl_ctx(SSL_CTX **ctx, X509_STORE *cert_store, int verify_mode, h2o_cache_t **session_cache)
+{
+    assert(*ctx != NULL);
+
+    /* inherit the properties that weren't specified */
+    if (cert_store == NULL)
+        cert_store = SSL_CTX_get_cert_store(*ctx);
+    X509_STORE_up_ref(cert_store);
+    if (verify_mode == -1)
+        verify_mode = SSL_CTX_get_verify_mode(*ctx);
+    h2o_cache_t *new_session_cache;
+    if (session_cache == NULL) {
+        h2o_cache_t *current = h2o_socket_ssl_get_session_cache(*ctx);
+        new_session_cache =
+            current == NULL ? NULL : create_ssl_session_cache(h2o_cache_get_capacity(current), h2o_cache_get_duration(current));
+    } else {
+        new_session_cache = *session_cache;
+    }
+
+    /* free the existing context */
+    if (*ctx != NULL)
+        SSL_CTX_free(*ctx);
+
+    /* create new ctx */
+    *ctx = create_ssl_ctx();
+    SSL_CTX_set_cert_store(*ctx, cert_store);
+    SSL_CTX_set_verify(*ctx, verify_mode, NULL);
+    if (new_session_cache != NULL)
+        h2o_socket_ssl_set_session_cache(*ctx, new_session_cache);
+}
+
+static int on_config_ssl_verify_peer(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct proxy_configurator_t *self = (void *)cmd->configurator;
+    ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON");
+    if (ret == -1)
+        return -1;
+
+    update_ssl_ctx(&self->vars->ssl_ctx, NULL, ret != 0 ? SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT : SSL_VERIFY_NONE,
+                   NULL);
+
+    return 0;
+}
+
+static int on_config_ssl_cafile(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct proxy_configurator_t *self = (void *)cmd->configurator;
+    X509_STORE *store = X509_STORE_new();
+    int ret = -1;
+
+    if (X509_STORE_load_locations(store, node->data.scalar, NULL) == 1) {
+        update_ssl_ctx(&self->vars->ssl_ctx, store, -1, NULL);
+        ret = 0;
+    } else {
+        h2o_configurator_errprintf(cmd, node, "failed to load certificates file:%s", node->data.scalar);
+        ERR_print_errors_fp(stderr);
+    }
+
+    X509_STORE_free(store);
+    return ret;
+}
+
+static int on_config_ssl_session_cache(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct proxy_configurator_t *self = (void *)cmd->configurator;
+    size_t capacity = 0;
+    uint64_t duration = 0;
+    h2o_cache_t *current_cache = h2o_socket_ssl_get_session_cache(self->vars->ssl_ctx);
+
+    switch (node->type) {
+    case YOML_TYPE_SCALAR:
+        if (strcasecmp(node->data.scalar, "OFF") == 0) {
+            if (current_cache != NULL) {
+                /* set the cache NULL */
+                h2o_cache_t *empty_cache = NULL;
+                update_ssl_ctx(&self->vars->ssl_ctx, NULL, -1, &empty_cache);
+            }
+            return 0;
+        } else if (strcasecmp(node->data.scalar, "ON") == 0) {
+            /* use default values */
+            capacity = H2O_DEFAULT_PROXY_SSL_SESSION_CACHE_CAPACITY;
+            duration = H2O_DEFAULT_PROXY_SSL_SESSION_CACHE_DURATION;
+        } else {
+            h2o_configurator_errprintf(cmd, node, "scalar argument must be either of: `OFF`, `ON`");
+            return -1;
+        }
+        break;
+    case YOML_TYPE_MAPPING: {
+        size_t i;
+        for (i = 0; i != node->data.mapping.size; ++i) {
+            yoml_t *key = node->data.mapping.elements[i].key;
+            yoml_t *value = node->data.mapping.elements[i].value;
+            if (key->type != YOML_TYPE_SCALAR) {
+                h2o_configurator_errprintf(cmd, key, "key must be a scalar");
+                return -1;
+            }
+            if (strcasecmp(key->data.scalar, "capacity") == 0) {
+                if (h2o_configurator_scanf(cmd, value, "%zu", &capacity) != 0)
+                    return -1;
+                if (capacity == 0) {
+                    h2o_configurator_errprintf(cmd, key, "capacity must be greater than zero");
+                    return -1;
+                }
+            } else if (strcasecmp(key->data.scalar, "lifetime") == 0) {
+                unsigned lifetime = 0;
+                if (h2o_configurator_scanf(cmd, value, "%u", &lifetime) != 0)
+                    return -1;
+                if (lifetime == 0) {
+                    h2o_configurator_errprintf(cmd, key, "lifetime must be greater than zero");
+                    return -1;
+                }
+                duration = (uint64_t)lifetime * 1000;
+            } else {
+                h2o_configurator_errprintf(cmd, key, "key must be either of: `capacity`, `lifetime`");
+                return -1;
+            }
+        }
+        if (capacity == 0 || duration == 0) {
+            h2o_configurator_errprintf(cmd, node, "`capacity` and `lifetime` are required");
+            return -1;
+        }
+    } break;
+    default:
+        h2o_configurator_errprintf(cmd, node, "node must be a scalar or a mapping");
+        return -1;
+    }
+
+    if (current_cache != NULL) {
+        size_t current_capacity = h2o_cache_get_capacity(current_cache);
+        uint64_t current_duration = h2o_cache_get_duration(current_cache);
+        if (capacity == current_capacity && duration == current_duration) {
+            /* parameters aren't changed, so reuse it */
+            return 0;
+        }
+    }
+
+    h2o_cache_t *new_cache = create_ssl_session_cache(capacity, duration);
+    update_ssl_ctx(&self->vars->ssl_ctx, NULL, -1, &new_cache);
+    return 0;
+}
+
+static int on_config_reverse_url(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct proxy_configurator_t *self = (void *)cmd->configurator;
+    h2o_url_t parsed;
+
+    if (h2o_url_parse(node->data.scalar, SIZE_MAX, &parsed) != 0) {
+        h2o_configurator_errprintf(cmd, node, "failed to parse URL: %s\n", node->data.scalar);
+        return -1;
+    }
+    if (self->vars->keepalive_timeout != 0 && self->vars->use_proxy_protocol) {
+        h2o_configurator_errprintf(cmd, node, "please either set `proxy.use-proxy-protocol` to `OFF` or disable keep-alive by "
+                                              "setting `proxy.timeout.keepalive` to zero; the features are mutually exclusive");
+        return -1;
+    }
+
+    if (self->vars->headers_cmds != NULL)
+        h2o_mem_addref_shared(self->vars->headers_cmds);
+
+    /* register */
+    h2o_proxy_register_reverse_proxy(ctx->pathconf, &parsed, self->vars);
+
+    return 0;
+}
+
+static int on_config_emit_x_forwarded_headers(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON");
+    if (ret == -1)
+        return -1;
+    ctx->globalconf->proxy.emit_x_forwarded_headers = (int)ret;
+    return 0;
+}
+
+static int on_config_emit_via_header(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON");
+    if (ret == -1)
+        return -1;
+    ctx->globalconf->proxy.emit_via_header = (int)ret;
+    return 0;
+}
+
+static int on_config_preserve_x_forwarded_proto(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON");
+    if (ret == -1)
+        return -1;
+    ctx->globalconf->proxy.preserve_x_forwarded_proto = (int)ret;
+    return 0;
+}
+
+static int on_config_enter(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct proxy_configurator_t *self = (void *)_self;
+
+    memcpy(self->vars + 1, self->vars, sizeof(*self->vars));
+    if (self->vars[1].headers_cmds != NULL)
+        h2o_mem_addref_shared(self->vars[1].headers_cmds);
+    ++self->vars;
+
+    if (ctx->pathconf == NULL && ctx->hostconf == NULL) {
+        /* is global conf, setup the default SSL context */
+        self->vars->ssl_ctx = create_ssl_ctx();
+        char *ca_bundle = h2o_configurator_get_cmd_path("share/h2o/ca-bundle.crt");
+        if (SSL_CTX_load_verify_locations(self->vars->ssl_ctx, ca_bundle, NULL) != 1)
+            fprintf(stderr, "Warning: failed to load the default certificates file at %s. Proxying to HTTPS servers may fail.\n",
+                    ca_bundle);
+        free(ca_bundle);
+        SSL_CTX_set_verify(self->vars->ssl_ctx, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, NULL);
+        h2o_cache_t *ssl_session_cache =
+            create_ssl_session_cache(H2O_DEFAULT_PROXY_SSL_SESSION_CACHE_CAPACITY, H2O_DEFAULT_PROXY_SSL_SESSION_CACHE_DURATION);
+        h2o_socket_ssl_set_session_cache(self->vars->ssl_ctx, ssl_session_cache);
+    } else {
+        SSL_CTX_up_ref(self->vars->ssl_ctx);
+    }
+
+    return 0;
+}
+
+static int on_config_exit(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct proxy_configurator_t *self = (void *)_self;
+
+    if (ctx->pathconf == NULL && ctx->hostconf == NULL) {
+        /* is global conf */
+        ctx->globalconf->proxy.io_timeout = self->vars->io_timeout;
+        ctx->globalconf->proxy.ssl_ctx = self->vars->ssl_ctx;
+    } else {
+        SSL_CTX_free(self->vars->ssl_ctx);
+    }
+
+    if (self->vars->headers_cmds != NULL)
+        h2o_mem_release_shared(self->vars->headers_cmds);
+
+    --self->vars;
+    return 0;
+}
+
+static h2o_headers_command_t **get_headers_commands(h2o_configurator_t *_self)
+{
+    struct proxy_configurator_t *self = (void *)_self;
+    return &self->vars->headers_cmds;
+}
+
+void h2o_proxy_register_configurator(h2o_globalconf_t *conf)
+{
+    struct proxy_configurator_t *c = (void *)h2o_configurator_create(conf, sizeof(*c));
+
+    /* set default vars */
+    c->vars = c->_vars_stack;
+    c->vars->io_timeout = H2O_DEFAULT_PROXY_IO_TIMEOUT;
+    c->vars->keepalive_timeout = 2000;
+    c->vars->websocket.enabled = 0; /* have websocket proxying disabled by default; until it becomes non-experimental */
+    c->vars->websocket.timeout = H2O_DEFAULT_PROXY_WEBSOCKET_TIMEOUT;
+
+    /* setup handlers */
+    c->super.enter = on_config_enter;
+    c->super.exit = on_config_exit;
+    h2o_configurator_define_command(
+        &c->super, "proxy.reverse.url",
+        H2O_CONFIGURATOR_FLAG_PATH | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR | H2O_CONFIGURATOR_FLAG_DEFERRED, on_config_reverse_url);
+    h2o_configurator_define_command(&c->super, "proxy.preserve-host",
+                                    H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_preserve_host);
+    h2o_configurator_define_command(&c->super, "proxy.proxy-protocol",
+                                    H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_proxy_protocol);
+    h2o_configurator_define_command(&c->super, "proxy.timeout.io",
+                                    H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_timeout_io);
+    h2o_configurator_define_command(&c->super, "proxy.timeout.keepalive",
+                                    H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_timeout_keepalive);
+    h2o_configurator_define_command(&c->super, "proxy.websocket",
+                                    H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_websocket);
+    h2o_configurator_define_command(&c->super, "proxy.websocket.timeout",
+                                    H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_websocket_timeout);
+    h2o_configurator_define_command(&c->super, "proxy.ssl.verify-peer",
+                                    H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_ssl_verify_peer);
+    h2o_configurator_define_command(&c->super, "proxy.ssl.cafile",
+                                    H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR, on_config_ssl_cafile);
+    h2o_configurator_define_command(&c->super, "proxy.ssl.session-cache", H2O_CONFIGURATOR_FLAG_ALL_LEVELS,
+                                    on_config_ssl_session_cache);
+    h2o_configurator_define_command(&c->super, "proxy.preserve-x-forwarded-proto",
+                                    H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_preserve_x_forwarded_proto);
+    h2o_configurator_define_command(&c->super, "proxy.emit-x-forwarded-headers",
+                                    H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_emit_x_forwarded_headers);
+    h2o_configurator_define_command(&c->super, "proxy.emit-via-header",
+                                    H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_emit_via_header);
+    h2o_configurator_define_headers_commands(conf, &c->super, "proxy.header", get_headers_commands);
+}
diff --git a/debian/vendor-h2o/lib/handler/configurator/redirect.c b/debian/vendor-h2o/lib/handler/configurator/redirect.c
new file mode 100644
index 0000000..4ebbb99
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/configurator/redirect.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o.h"
+#include "h2o/configurator.h"
+
+static int on_config(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    const char *dest;
+    int status = 302; /* default is temporary redirect */
+    int internal = 0; /* default is external redirect */
+    yoml_t *t;
+
+    switch (node->type) {
+    case YOML_TYPE_SCALAR:
+        dest = node->data.scalar;
+        break;
+    case YOML_TYPE_MAPPING:
+        if ((t = yoml_get(node, "url")) == NULL) {
+            h2o_configurator_errprintf(cmd, node, "mandatory property `url` is missing");
+            return -1;
+        }
+        if (t->type != YOML_TYPE_SCALAR) {
+            h2o_configurator_errprintf(cmd, t, "property `url` must be a string");
+            return -1;
+        }
+        dest = t->data.scalar;
+        if ((t = yoml_get(node, "status")) == NULL) {
+            h2o_configurator_errprintf(cmd, node, "mandatory property `status` is missing");
+            return -1;
+        }
+        if (h2o_configurator_scanf(cmd, t, "%d", &status) != 0)
+            return -1;
+        if (!(300 <= status && status <= 399)) {
+            h2o_configurator_errprintf(cmd, t, "value of property `status` should be within 300 to 399");
+            return -1;
+        }
+        if ((t = yoml_get(node, "internal")) != NULL) {
+            if ((internal = (int)h2o_configurator_get_one_of(cmd, t, "NO,YES")) == -1)
+                return -1;
+        }
+        break;
+    default:
+        h2o_configurator_errprintf(cmd, node, "value must be a string or a mapping");
+        return -1;
+    }
+
+    h2o_redirect_register(ctx->pathconf, internal, status, dest);
+
+    return 0;
+}
+
+void h2o_redirect_register_configurator(h2o_globalconf_t *conf)
+{
+    h2o_configurator_t *c = h2o_configurator_create(conf, sizeof(*c));
+
+    h2o_configurator_define_command(c, "redirect", H2O_CONFIGURATOR_FLAG_PATH | H2O_CONFIGURATOR_FLAG_DEFERRED, on_config);
+}
diff --git a/debian/vendor-h2o/lib/handler/configurator/reproxy.c b/debian/vendor-h2o/lib/handler/configurator/reproxy.c
new file mode 100644
index 0000000..21650e4
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/configurator/reproxy.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2015 Daisuke Maki, DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <inttypes.h>
+#include "h2o.h"
+#include "h2o/configurator.h"
+
+struct config_t {
+    int enabled;
+};
+
+struct reproxy_configurator_t {
+    h2o_configurator_t super;
+    struct config_t *vars, _vars_stack[H2O_CONFIGURATOR_NUM_LEVELS + 1];
+};
+
+static int on_config_reproxy(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct reproxy_configurator_t *self = (void *)cmd->configurator;
+
+    ssize_t ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON");
+    if (ret == -1)
+        return -1;
+    self->vars->enabled = (int)ret;
+
+    return 0;
+}
+
+static int on_config_enter(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct reproxy_configurator_t *self = (void *)_self;
+
+    self->vars[1] = self->vars[0];
+    ++self->vars;
+    return 0;
+}
+
+static int on_config_exit(h2o_configurator_t *_self, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct reproxy_configurator_t *self = (void *)_self;
+
+    if (ctx->pathconf != NULL && self->vars->enabled != 0)
+        h2o_reproxy_register(ctx->pathconf);
+
+    --self->vars;
+    return 0;
+}
+
+void h2o_reproxy_register_configurator(h2o_globalconf_t *conf)
+{
+    struct reproxy_configurator_t *c = (void *)h2o_configurator_create(conf, sizeof(*c));
+
+    /* set default vars */
+    c->vars = c->_vars_stack;
+
+    /* setup handlers */
+    c->super.enter = on_config_enter;
+    c->super.exit = on_config_exit;
+
+    /* reproxy: ON | OFF */
+    h2o_configurator_define_command(&c->super, "reproxy", H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_reproxy);
+}
diff --git a/debian/vendor-h2o/lib/handler/configurator/status.c b/debian/vendor-h2o/lib/handler/configurator/status.c
new file mode 100644
index 0000000..8645aa3
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/configurator/status.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2016 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o.h"
+#include "h2o/configurator.h"
+
+static int on_config_status(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    switch (h2o_configurator_get_one_of(cmd, node, "OFF,ON")) {
+    case 0: /* OFF */
+        return 0;
+    case 1: /* ON */
+        h2o_status_register(ctx->pathconf);
+        return 0;
+    default: /* error */
+        return -1;
+    }
+}
+
+struct st_status_configurator {
+    h2o_configurator_t super;
+    int stack;
+    int duration_stats;
+};
+
+static int on_config_duration_stats(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_status_configurator *c = (void *)cmd->configurator;
+    ssize_t ret;
+    switch (ret = h2o_configurator_get_one_of(cmd, node, "OFF,ON")) {
+    case 0: /* OFF */
+    case 1: /* ON */
+        c->duration_stats = (int)ret;
+        return 0;
+    default: /* error */
+        return -1;
+    }
+}
+
+int on_enter_status(h2o_configurator_t *_conf, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_status_configurator *c = (void *)_conf;
+    c->stack++;
+    return 0;
+}
+
+int on_exit_status(h2o_configurator_t *_conf, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct st_status_configurator *c = (void *)_conf;
+    c->stack--;
+    if (!c->stack && c->duration_stats) {
+        h2o_duration_stats_register(ctx->globalconf);
+    }
+    return 0;
+}
+
+void h2o_status_register_configurator(h2o_globalconf_t *conf)
+{
+    struct st_status_configurator *c = (void *)h2o_configurator_create(conf, sizeof(*c));
+    c->super.enter = on_enter_status;
+    c->super.exit = on_exit_status;
+
+    h2o_configurator_define_command(&c->super, "status", H2O_CONFIGURATOR_FLAG_PATH | H2O_CONFIGURATOR_FLAG_DEFERRED |
+                                                             H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_status);
+
+    h2o_configurator_define_command(&c->super, "duration-stats", H2O_CONFIGURATOR_FLAG_GLOBAL | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_duration_stats);
+}
diff --git a/debian/vendor-h2o/lib/handler/configurator/throttle_resp.c b/debian/vendor-h2o/lib/handler/configurator/throttle_resp.c
new file mode 100644
index 0000000..61431f7
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/configurator/throttle_resp.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2016 Justin Zhu
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o.h"
+#include "h2o/configurator.h"
+
+struct throttle_resp_config_vars_t {
+    int on;
+};
+
+struct throttle_resp_configurator_t {
+    h2o_configurator_t super;
+    struct throttle_resp_config_vars_t *vars, _vars_stack[H2O_CONFIGURATOR_NUM_LEVELS + 1];
+};
+
+static int on_config_throttle_resp(h2o_configurator_command_t *cmd, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct throttle_resp_configurator_t *self = (void *)cmd->configurator;
+
+    if ((self->vars->on = (int)h2o_configurator_get_one_of(cmd, node, "OFF,ON")) == -1)
+        return -1;
+    return 0;
+}
+
+static int on_config_enter(h2o_configurator_t *configurator, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct throttle_resp_configurator_t *self = (void *)configurator;
+
+    ++self->vars;
+    self->vars[0] = self->vars[-1];
+    return 0;
+}
+
+static int on_config_exit(h2o_configurator_t *configurator, h2o_configurator_context_t *ctx, yoml_t *node)
+{
+    struct throttle_resp_configurator_t *self = (void *)configurator;
+
+    if (ctx->pathconf != NULL && self->vars->on)
+        h2o_throttle_resp_register(ctx->pathconf);
+
+    --self->vars;
+    return 0;
+}
+
+void h2o_throttle_resp_register_configurator(h2o_globalconf_t *conf)
+{
+    struct throttle_resp_configurator_t *c = (void *)h2o_configurator_create(conf, sizeof(*c));
+
+    c->super.enter = on_config_enter;
+    c->super.exit = on_config_exit;
+    h2o_configurator_define_command(&c->super, "throttle-response",
+                                    H2O_CONFIGURATOR_FLAG_ALL_LEVELS | H2O_CONFIGURATOR_FLAG_EXPECT_SCALAR,
+                                    on_config_throttle_resp);
+    c->vars = c->_vars_stack;
+}
diff --git a/debian/vendor-h2o/lib/handler/errordoc.c b/debian/vendor-h2o/lib/handler/errordoc.c
new file mode 100644
index 0000000..72744f3
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/errordoc.c
@@ -0,0 +1,145 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o.h"
+
+/* used to rewrite status code to the original code */
+struct st_errordoc_prefilter_t {
+    h2o_req_prefilter_t super;
+    h2o_headers_t req_headers;
+    int status;
+    const char *reason;
+    h2o_headers_t res_headers;
+};
+
+/* used to capture an error response */
+struct st_errordoc_filter_t {
+    h2o_filter_t super;
+    H2O_VECTOR(h2o_errordoc_t) errordocs;
+};
+
+static void add_header(h2o_mem_pool_t *pool, h2o_headers_t *headers, const h2o_header_t *header)
+{
+    h2o_vector_reserve(pool, headers, headers->size + 1);
+    headers->entries[headers->size++] = *header;
+}
+
+static void on_prefilter_setup_stream(h2o_req_prefilter_t *_self, h2o_req_t *req, h2o_ostream_t **slot)
+{
+    struct st_errordoc_prefilter_t *self = (void *)_self;
+    h2o_headers_t headers_merged = {NULL};
+    size_t i;
+
+    /* restore request headers (for logging) and response status */
+    req->headers = self->req_headers;
+    req->res.status = self->status;
+    req->res.reason = self->reason;
+
+    /* generate response headers (by merging the preserved and given) */
+    for (i = 0; i != self->res_headers.size; ++i)
+        add_header(&req->pool, &headers_merged, self->res_headers.entries + i);
+    for (i = 0; i != req->res.headers.size; ++i) {
+        const h2o_header_t *header = req->res.headers.entries + i;
+        if (header->name == &H2O_TOKEN_CONTENT_TYPE->buf || header->name == &H2O_TOKEN_CONTENT_LANGUAGE->buf ||
+            header->name == &H2O_TOKEN_SET_COOKIE->buf)
+            add_header(&req->pool, &headers_merged, header);
+    }
+    req->res.headers = headers_merged;
+
+    h2o_setup_next_prefilter(&self->super, req, slot);
+}
+
+static void on_ostream_send(h2o_ostream_t *self, h2o_req_t *req, h2o_iovec_t *inbufs, size_t inbufcnt, h2o_send_state_t state)
+{
+    /* nothing to do */
+}
+
+static int prefilter_is_registered(h2o_req_t *req)
+{
+    h2o_req_prefilter_t *prefilter;
+    for (prefilter = req->prefilters; prefilter != NULL; prefilter = prefilter->next)
+        if (prefilter->on_setup_ostream == on_prefilter_setup_stream)
+            return 1;
+    return 0;
+}
+
+static void on_filter_setup_ostream(h2o_filter_t *_self, h2o_req_t *req, h2o_ostream_t **slot)
+{
+    struct st_errordoc_filter_t *self = (void *)_self;
+    h2o_errordoc_t *errordoc;
+    struct st_errordoc_prefilter_t *prefilter;
+    h2o_iovec_t method;
+    h2o_ostream_t *ostream;
+    size_t i;
+
+    if (req->res.status >= 400 && !prefilter_is_registered(req)) {
+        size_t i;
+        for (i = 0; i != self->errordocs.size; ++i) {
+            errordoc = self->errordocs.entries + i;
+            if (errordoc->status == req->res.status)
+                goto Found;
+        }
+    }
+
+    /* bypass to the next filter */
+    h2o_setup_next_ostream(req, slot);
+    return;
+
+Found:
+    /* register prefilter that rewrites the status code after the internal redirect is processed */
+    prefilter = (void *)h2o_add_prefilter(req, sizeof(*prefilter));
+    prefilter->super.on_setup_ostream = on_prefilter_setup_stream;
+    prefilter->req_headers = req->headers;
+    prefilter->status = req->res.status;
+    prefilter->reason = req->res.reason;
+    prefilter->res_headers = (h2o_headers_t){NULL};
+    for (i = 0; i != req->res.headers.size; ++i) {
+        const h2o_header_t *header = req->res.headers.entries + i;
+        if (!(header->name == &H2O_TOKEN_CONTENT_TYPE->buf || header->name == &H2O_TOKEN_CONTENT_LANGUAGE->buf))
+            add_header(&req->pool, &prefilter->res_headers, header);
+    }
+    /* redirect internally to the error document */
+    method = req->method;
+    if (h2o_memis(method.base, method.len, H2O_STRLIT("POST")))
+        method = h2o_iovec_init(H2O_STRLIT("GET"));
+    req->headers = (h2o_headers_t){NULL};
+    req->res.headers = (h2o_headers_t){NULL};
+    h2o_send_redirect_internal(req, method, errordoc->url.base, errordoc->url.len, 0);
+    /* create fake ostream that swallows the contents emitted by the generator */
+    ostream = h2o_add_ostream(req, sizeof(*ostream), slot);
+    ostream->do_send = on_ostream_send;
+}
+
+void h2o_errordoc_register(h2o_pathconf_t *pathconf, h2o_errordoc_t *errdocs, size_t cnt)
+{
+    struct st_errordoc_filter_t *self = (void *)h2o_create_filter(pathconf, sizeof(*self));
+    size_t i;
+
+    self->super.on_setup_ostream = on_filter_setup_ostream;
+    h2o_vector_reserve(NULL, &self->errordocs, cnt);
+    self->errordocs.size = cnt;
+    for (i = 0; i != cnt; ++i) {
+        const h2o_errordoc_t *src = errdocs + i;
+        h2o_errordoc_t *dst = self->errordocs.entries + i;
+        dst->status = src->status;
+        dst->url = h2o_strdup(NULL, src->url.base, src->url.len);
+    }
+}
diff --git a/debian/vendor-h2o/lib/handler/expires.c b/debian/vendor-h2o/lib/handler/expires.c
new file mode 100644
index 0000000..c772256
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/expires.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <assert.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "h2o.h"
+
+struct st_expires_t {
+    h2o_filter_t super;
+    int mode;
+    h2o_iovec_t value;
+};
+
+static void on_setup_ostream(h2o_filter_t *_self, h2o_req_t *req, h2o_ostream_t **slot)
+{
+    struct st_expires_t *self = (void *)_self;
+
+    switch (req->res.status) {
+    case 200:
+    case 201:
+    case 204:
+    case 206:
+    case 301:
+    case 302:
+    case 303:
+    case 304:
+    case 307:
+        switch (self->mode) {
+        case H2O_EXPIRES_MODE_ABSOLUTE:
+            h2o_set_header(&req->pool, &req->res.headers, H2O_TOKEN_EXPIRES, self->value.base, self->value.len, 0);
+            break;
+        case H2O_EXPIRES_MODE_MAX_AGE:
+            h2o_set_header_token(&req->pool, &req->res.headers, H2O_TOKEN_CACHE_CONTROL, self->value.base, self->value.len);
+            break;
+        default:
+            assert(0);
+            break;
+        }
+        break;
+    default:
+        break;
+    }
+
+    h2o_setup_next_ostream(req, slot);
+}
+
+void h2o_expires_register(h2o_pathconf_t *pathconf, h2o_expires_args_t *args)
+{
+    struct st_expires_t *self = (void *)h2o_create_filter(pathconf, sizeof(*self));
+    self->super.on_setup_ostream = on_setup_ostream;
+    self->mode = args->mode;
+    switch (args->mode) {
+    case H2O_EXPIRES_MODE_ABSOLUTE:
+        self->value = h2o_strdup(NULL, args->data.absolute, SIZE_MAX);
+        break;
+    case H2O_EXPIRES_MODE_MAX_AGE:
+        self->value.base = h2o_mem_alloc(128);
+        self->value.len = sprintf(self->value.base, "max-age=%" PRIu64, args->data.max_age);
+        break;
+    default:
+        assert(0);
+        break;
+    }
+}
diff --git a/debian/vendor-h2o/lib/handler/fastcgi.c b/debian/vendor-h2o/lib/handler/fastcgi.c
new file mode 100644
index 0000000..d6bcf9e
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/fastcgi.c
@@ -0,0 +1,856 @@
+/*
+ * Copyright (c) 2015-2016 DeNA Co., Ltd. Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <inttypes.h>
+#include <stdio.h>
+#include "picohttpparser.h"
+#include "h2o.h"
+
+#define FCGI_VERSION_1 1
+
+#define FCGI_RESPONDER 1
+#define FCGI_KEEP_CONN 1
+
+#define FCGI_BEGIN_REQUEST 1
+#define FCGI_END_REQUEST 3
+#define FCGI_PARAMS 4
+#define FCGI_STDIN 5
+#define FCGI_STDOUT 6
+#define FCGI_STDERR 7
+#define FCGI_DATA 8
+
+#define FCGI_RECORD_HEADER_SIZE (sizeof(struct st_fcgi_record_header_t))
+#define FCGI_BEGIN_REQUEST_BODY_SIZE 8
+
+#define MODULE_NAME "lib/handler/fastcgi.c"
+
+#define APPEND_BLOCKSIZE 512 /* the size should be small enough to be allocated within the buffer of the memory pool */
+
+struct st_fcgi_record_header_t {
+    uint8_t version;
+    uint8_t type;
+    uint16_t requestId;
+    uint16_t contentLength;
+    uint8_t paddingLength;
+    uint8_t reserved;
+};
+
+struct st_fcgi_begin_request_body_t {
+    uint16_t role;
+    uint8_t flags;
+    uint8_t reserved[5];
+};
+
+typedef H2O_VECTOR(h2o_iovec_t) iovec_vector_t;
+
+struct st_fcgi_context_t {
+    h2o_fastcgi_handler_t *handler;
+    h2o_timeout_t io_timeout;
+};
+
+struct st_fcgi_generator_t {
+    h2o_generator_t super;
+    struct st_fcgi_context_t *ctx;
+    h2o_req_t *req;
+    h2o_socketpool_connect_request_t *connect_req;
+    h2o_socket_t *sock;
+    int sent_headers;
+    size_t leftsize; /* remaining amount of the content to receive (or SIZE_MAX if unknown) */
+    struct {
+        h2o_doublebuffer_t sending;
+        h2o_buffer_t *receiving;
+    } resp;
+    h2o_timeout_entry_t timeout;
+};
+
+struct st_h2o_fastcgi_handler_t {
+    h2o_handler_t super;
+    h2o_socketpool_t sockpool;
+    h2o_fastcgi_config_vars_t config;
+};
+
+static void encode_uint16(void *_p, unsigned v)
+{
+    unsigned char *p = _p;
+    p[0] = (unsigned char)(v >> 8);
+    p[1] = (unsigned char)v;
+}
+
+static void encode_record_header(void *p, uint8_t type, uint16_t reqId, uint16_t sz)
+{
+    struct st_fcgi_record_header_t *header = p;
+    header->version = FCGI_VERSION_1;
+    header->type = type;
+    encode_uint16(&header->requestId, reqId);
+    encode_uint16(&header->contentLength, sz);
+    header->paddingLength = 0;
+    header->reserved = 0;
+}
+
+static void encode_begin_request(void *p, uint16_t reqId, uint16_t role, uint8_t flags)
+{
+    encode_record_header(p, FCGI_BEGIN_REQUEST, reqId, FCGI_BEGIN_REQUEST_BODY_SIZE);
+    struct st_fcgi_begin_request_body_t *body = (void *)((char *)p + FCGI_RECORD_HEADER_SIZE);
+    encode_uint16(&body->role, role);
+    body->flags = flags;
+    memset(body->reserved, 0, sizeof(body->reserved));
+}
+
+static h2o_iovec_t create_begin_request(h2o_mem_pool_t *pool, uint16_t reqId, uint16_t role, uint8_t flags)
+{
+    h2o_iovec_t rec = h2o_iovec_init(h2o_mem_alloc_pool(pool, FCGI_RECORD_HEADER_SIZE + FCGI_BEGIN_REQUEST_BODY_SIZE),
+                                     FCGI_RECORD_HEADER_SIZE + FCGI_BEGIN_REQUEST_BODY_SIZE);
+    encode_begin_request(rec.base, reqId, role, flags);
+    return rec;
+}
+
+static h2o_iovec_t create_header(h2o_mem_pool_t *pool, uint8_t type, uint16_t reqId, uint16_t sz)
+{
+    h2o_iovec_t rec = h2o_iovec_init(h2o_mem_alloc_pool(pool, FCGI_RECORD_HEADER_SIZE), FCGI_RECORD_HEADER_SIZE);
+    encode_record_header(rec.base, type, reqId, sz);
+    return rec;
+}
+
+static void decode_header(struct st_fcgi_record_header_t *decoded, const void *s)
+{
+    memcpy(decoded, s, sizeof(*decoded));
+    decoded->requestId = htons(decoded->requestId);
+    decoded->contentLength = htons(decoded->contentLength);
+}
+
+static void *append(h2o_mem_pool_t *pool, iovec_vector_t *blocks, const void *s, size_t len)
+{
+    h2o_iovec_t *slot;
+
+    if (blocks->entries[blocks->size - 1].len + len > APPEND_BLOCKSIZE) {
+        h2o_vector_reserve(pool, blocks, blocks->size + 1);
+        slot = blocks->entries + blocks->size++;
+        slot->base = h2o_mem_alloc_pool(pool, len < APPEND_BLOCKSIZE ? APPEND_BLOCKSIZE : len);
+        slot->len = 0;
+    } else {
+        slot = blocks->entries + blocks->size - 1;
+    }
+
+    if (s != NULL)
+        memcpy(slot->base + slot->len, s, len);
+    slot->len += len;
+
+    return slot->base + slot->len - len;
+}
+
+static char *encode_length_of_pair(char *p, size_t len)
+{
+    if (len < 127) {
+        *p++ = (char)len;
+    } else {
+        *p++ = (unsigned char)(len >> 24) | 0x80;
+        *p++ = (unsigned char)(len >> 16);
+        *p++ = (unsigned char)(len >> 8);
+        *p++ = (unsigned char)len;
+    }
+    return p;
+}
+
+static void *append_pair(h2o_mem_pool_t *pool, iovec_vector_t *blocks, const char *name, size_t namelen, const char *value,
+                         size_t valuelen)
+{
+    char lenbuf[8];
+    void *name_buf;
+
+    append(pool, blocks, lenbuf, encode_length_of_pair(encode_length_of_pair(lenbuf, namelen), valuelen) - lenbuf);
+    name_buf = append(pool, blocks, name, namelen);
+    if (valuelen != 0)
+        append(pool, blocks, value, valuelen);
+
+    return name_buf;
+}
+
+static void append_address_info(h2o_req_t *req, iovec_vector_t *vecs, const char *addrlabel, size_t addrlabel_len,
+                                const char *portlabel, size_t portlabel_len, socklen_t (*cb)(h2o_conn_t *conn, struct sockaddr *))
+{
+    struct sockaddr_storage ss;
+    socklen_t sslen;
+    char buf[NI_MAXHOST];
+
+    if ((sslen = cb(req->conn, (void *)&ss)) == 0)
+        return;
+
+    size_t l = h2o_socket_getnumerichost((void *)&ss, sslen, buf);
+    if (l != SIZE_MAX)
+        append_pair(&req->pool, vecs, addrlabel, addrlabel_len, buf, l);
+    int32_t port = h2o_socket_getport((void *)&ss);
+    if (port != -1) {
+        char buf[6];
+        int l = sprintf(buf, "%" PRIu16, (uint16_t)port);
+        append_pair(&req->pool, vecs, portlabel, portlabel_len, buf, (size_t)l);
+    }
+}
+
+static int envname_is_headername(const h2o_iovec_t *env, const h2o_iovec_t *header)
+{
+    const char *ep, *hp, *hend;
+
+    if (env->len != 5 + header->len)
+        return 0;
+    if (memcmp(env->base, "HTTP_", 5) != 0)
+        return 0;
+    for (ep = env->base + 5, hp = header->base, hend = hp + header->len; hp < hend; ++ep, ++hp)
+        if (*ep != h2o_toupper(*hp))
+            return 0;
+    return 1;
+}
+
+static void append_params(h2o_req_t *req, iovec_vector_t *vecs, h2o_fastcgi_config_vars_t *config)
+{
+    h2o_iovec_t path_info = {NULL};
+
+    /* CONTENT_LENGTH */
+    if (req->entity.base != NULL) {
+        char buf[32];
+        int l = sprintf(buf, "%zu", req->entity.len);
+        append_pair(&req->pool, vecs, H2O_STRLIT("CONTENT_LENGTH"), buf, (size_t)l);
+    }
+    /* SCRIPT_FILENAME, SCRIPT_NAME, PATH_INFO */
+    if (req->filereq != NULL) {
+        h2o_filereq_t *filereq = req->filereq;
+        append_pair(&req->pool, vecs, H2O_STRLIT("SCRIPT_FILENAME"), filereq->local_path.base, filereq->local_path.len);
+        append_pair(&req->pool, vecs, H2O_STRLIT("SCRIPT_NAME"), filereq->script_name.base, filereq->script_name.len);
+        path_info = filereq->path_info;
+    } else {
+        append_pair(&req->pool, vecs, H2O_STRLIT("SCRIPT_NAME"), NULL, 0);
+        path_info = req->path_normalized;
+    }
+    if (path_info.base != NULL)
+        append_pair(&req->pool, vecs, H2O_STRLIT("PATH_INFO"), path_info.base, path_info.len);
+    /* DOCUMENT_ROOT and PATH_TRANSLATED */
+    if (config->document_root.base != NULL) {
+        append_pair(&req->pool, vecs, H2O_STRLIT("DOCUMENT_ROOT"), config->document_root.base, config->document_root.len);
+        if (path_info.base != NULL) {
+            append_pair(&req->pool, vecs, H2O_STRLIT("PATH_TRANSLATED"), NULL, config->document_root.len + path_info.len);
+            char *dst_end = vecs->entries[vecs->size - 1].base + vecs->entries[vecs->size - 1].len;
+            memcpy(dst_end - path_info.len, path_info.base, path_info.len);
+            memcpy(dst_end - path_info.len - config->document_root.len, config->document_root.base, config->document_root.len);
+        }
+    }
+    /* QUERY_STRING (and adjust PATH_INFO) */
+    if (req->query_at != SIZE_MAX) {
+        append_pair(&req->pool, vecs, H2O_STRLIT("QUERY_STRING"), req->path.base + req->query_at + 1,
+                    req->path.len - (req->query_at + 1));
+    } else {
+        append_pair(&req->pool, vecs, H2O_STRLIT("QUERY_STRING"), NULL, 0);
+    }
+    /* REMOTE_ADDR & REMOTE_PORT */
+    append_address_info(req, vecs, H2O_STRLIT("REMOTE_ADDR"), H2O_STRLIT("REMOTE_PORT"), req->conn->callbacks->get_peername);
+    { /* environment variables (REMOTE_USER, etc.) */
+        size_t i;
+        for (i = 0; i != req->env.size; i += 2) {
+            h2o_iovec_t *name = req->env.entries + i, *value = name + 1;
+            append_pair(&req->pool, vecs, name->base, name->len, value->base, value->len);
+        }
+    }
+    /* REQUEST_METHOD */
+    append_pair(&req->pool, vecs, H2O_STRLIT("REQUEST_METHOD"), req->method.base, req->method.len);
+    /* HTTP_HOST & REQUEST_URI */
+    if (config->send_delegated_uri) {
+        append_pair(&req->pool, vecs, H2O_STRLIT("HTTP_HOST"), req->authority.base, req->authority.len);
+        append_pair(&req->pool, vecs, H2O_STRLIT("REQUEST_URI"), req->path.base, req->path.len);
+    } else {
+        append_pair(&req->pool, vecs, H2O_STRLIT("HTTP_HOST"), req->input.authority.base, req->input.authority.len);
+        append_pair(&req->pool, vecs, H2O_STRLIT("REQUEST_URI"), req->input.path.base, req->input.path.len);
+    }
+    /* SERVER_ADDR & SERVER_PORT */
+    append_address_info(req, vecs, H2O_STRLIT("SERVER_ADDR"), H2O_STRLIT("SERVER_PORT"), req->conn->callbacks->get_sockname);
+    /* SERVER_NAME */
+    append_pair(&req->pool, vecs, H2O_STRLIT("SERVER_NAME"), req->hostconf->authority.host.base, req->hostconf->authority.host.len);
+    { /* SERVER_PROTOCOL */
+        char buf[sizeof("HTTP/1.1")];
+        size_t l = h2o_stringify_protocol_version(buf, req->version);
+        append_pair(&req->pool, vecs, H2O_STRLIT("SERVER_PROTOCOL"), buf, l);
+    }
+    /* SERVER_SOFTWARE */
+    append_pair(&req->pool, vecs, H2O_STRLIT("SERVER_SOFTWARE"), req->conn->ctx->globalconf->server_name.base,
+                req->conn->ctx->globalconf->server_name.len);
+    /* set HTTPS: on if necessary */
+    if (req->scheme == &H2O_URL_SCHEME_HTTPS)
+        append_pair(&req->pool, vecs, H2O_STRLIT("HTTPS"), H2O_STRLIT("on"));
+    { /* headers */
+        const h2o_header_t *h = req->headers.entries, *h_end = h + req->headers.size;
+        size_t cookie_length = 0;
+        for (; h != h_end; ++h) {
+            if (h->name == &H2O_TOKEN_CONTENT_TYPE->buf) {
+                append_pair(&req->pool, vecs, H2O_STRLIT("CONTENT_TYPE"), h->value.base, h->value.len);
+            } else if (h->name == &H2O_TOKEN_COOKIE->buf) {
+                /* accumulate the length of the cookie, together with the separator */
+                cookie_length += h->value.len + 1;
+            } else {
+                size_t i;
+                for (i = 0; i != req->env.size; i += 2) {
+                    h2o_iovec_t *envname = req->env.entries + i;
+                    if (envname_is_headername(envname, h->name))
+                        goto NextHeader;
+                }
+                char *dst = append_pair(&req->pool, vecs, NULL, h->name->len + sizeof("HTTP_") - 1, h->value.base, h->value.len);
+                const char *src = h->name->base, *src_end = src + h->name->len;
+                *dst++ = 'H';
+                *dst++ = 'T';
+                *dst++ = 'T';
+                *dst++ = 'P';
+                *dst++ = '_';
+                for (; src != src_end; ++src)
+                    *dst++ = *src == '-' ? '_' : h2o_toupper(*src);
+            }
+        NextHeader:;
+        }
+        if (cookie_length != 0) {
+            /* emit the cookie merged */
+            cookie_length -= 1;
+            append_pair(&req->pool, vecs, H2O_STRLIT("HTTP_COOKIE"), NULL, cookie_length);
+            char *dst = vecs->entries[vecs->size - 1].base + vecs->entries[vecs->size - 1].len - cookie_length;
+            for (h = req->headers.entries;; ++h) {
+                if (h->name == &H2O_TOKEN_COOKIE->buf) {
+                    if (cookie_length == h->value.len)
+                        break;
+                    memcpy(dst, h->value.base, h->value.len);
+                    dst += h->value.len;
+                    *dst++ = ';';
+                    cookie_length -= h->value.len + 1;
+                }
+            }
+            memcpy(dst, h->value.base, h->value.len);
+        }
+    }
+}
+
+static void annotate_params(h2o_mem_pool_t *pool, iovec_vector_t *vecs, unsigned request_id, size_t max_record_size)
+{
+    size_t index = 2, recsize = 0, header_slot = 1;
+
+    while (index != vecs->size) {
+        if (recsize + vecs->entries[index].len < max_record_size) {
+            recsize += vecs->entries[index].len;
+            ++index;
+        } else {
+            vecs->entries[header_slot] = create_header(pool, FCGI_PARAMS, request_id, max_record_size);
+            if (recsize + vecs->entries[index].len == max_record_size) {
+                h2o_vector_reserve(pool, vecs, vecs->size + 1);
+                memmove(vecs->entries + index + 2, vecs->entries + index + 1,
+                        (vecs->size - (index + 1)) * sizeof(vecs->entries[0]));
+                ++vecs->size;
+            } else {
+                h2o_vector_reserve(pool, vecs, vecs->size + 2);
+                memmove(vecs->entries + index + 2, vecs->entries + index, (vecs->size - index) * sizeof(vecs->entries[0]));
+                vecs->size += 2;
+                size_t lastsz = max_record_size - recsize;
+                vecs->entries[index].len = lastsz;
+                vecs->entries[index + 2].base += lastsz;
+                vecs->entries[index + 2].len -= lastsz;
+            }
+            header_slot = index + 1;
+            index += 2;
+            recsize = 0;
+        }
+    }
+
+    vecs->entries[header_slot] = create_header(pool, FCGI_PARAMS, request_id, recsize);
+    if (recsize != 0) {
+        h2o_vector_reserve(pool, vecs, vecs->size + 1);
+        vecs->entries[vecs->size++] = create_header(pool, FCGI_PARAMS, request_id, 0);
+    }
+}
+
+static void build_request(h2o_req_t *req, iovec_vector_t *vecs, unsigned request_id, size_t max_record_size,
+                          h2o_fastcgi_config_vars_t *config)
+{
+    *vecs = (iovec_vector_t){NULL};
+
+    /* first entry is FCGI_BEGIN_REQUEST */
+    h2o_vector_reserve(&req->pool, vecs, 5 /* we send at least 5 iovecs */);
+    vecs->entries[0] =
+        create_begin_request(&req->pool, request_id, FCGI_RESPONDER, config->keepalive_timeout != 0 ? FCGI_KEEP_CONN : 0);
+    /* second entry is reserved for FCGI_PARAMS header */
+    vecs->entries[1] = h2o_iovec_init(NULL, APPEND_BLOCKSIZE); /* dummy value set to prevent params being appended to the entry */
+    vecs->size = 2;
+    /* accumulate the params data, and annotate them with FCGI_PARAM headers */
+    append_params(req, vecs, config);
+    annotate_params(&req->pool, vecs, request_id, max_record_size);
+    /* setup FCGI_STDIN headers */
+    if (req->entity.len != 0) {
+        size_t off = 0;
+        for (; off + max_record_size < req->entity.len; off += max_record_size) {
+            h2o_vector_reserve(&req->pool, vecs, vecs->size + 2);
+            vecs->entries[vecs->size++] = create_header(&req->pool, FCGI_STDIN, request_id, max_record_size);
+            vecs->entries[vecs->size++] = h2o_iovec_init(req->entity.base + off, max_record_size);
+        }
+        if (off != req->entity.len) {
+            h2o_vector_reserve(&req->pool, vecs, vecs->size + 2);
+            vecs->entries[vecs->size++] = create_header(&req->pool, FCGI_STDIN, request_id, req->entity.len - off);
+            vecs->entries[vecs->size++] = h2o_iovec_init(req->entity.base + off, req->entity.len - off);
+        }
+    }
+    h2o_vector_reserve(&req->pool, vecs, vecs->size + 1);
+    vecs->entries[vecs->size++] = create_header(&req->pool, FCGI_STDIN, request_id, 0);
+}
+
+static void set_timeout(struct st_fcgi_generator_t *generator, h2o_timeout_t *timeout, h2o_timeout_cb cb)
+{
+    if (h2o_timeout_is_linked(&generator->timeout))
+        h2o_timeout_unlink(&generator->timeout);
+
+    generator->timeout.cb = cb;
+    h2o_timeout_link(generator->req->conn->ctx->loop, timeout, &generator->timeout);
+}
+
+static void close_generator(struct st_fcgi_generator_t *generator)
+{
+    /* can be called more than once */
+
+    if (h2o_timeout_is_linked(&generator->timeout))
+        h2o_timeout_unlink(&generator->timeout);
+    if (generator->connect_req != NULL) {
+        h2o_socketpool_cancel_connect(generator->connect_req);
+        generator->connect_req = NULL;
+    }
+    if (generator->sock != NULL) {
+        h2o_socket_close(generator->sock);
+        generator->sock = NULL;
+    }
+    if (generator->resp.sending.buf != NULL)
+        h2o_doublebuffer_dispose(&generator->resp.sending);
+    if (generator->resp.receiving != NULL)
+        h2o_buffer_dispose(&generator->resp.receiving);
+}
+
+static void do_send(struct st_fcgi_generator_t *generator)
+{
+    h2o_iovec_t vecs[1];
+    size_t veccnt;
+    int is_final;
+
+    vecs[0] = h2o_doublebuffer_prepare(&generator->resp.sending, &generator->resp.receiving, generator->req->preferred_chunk_size);
+    veccnt = vecs[0].len != 0 ? 1 : 0;
+    if (generator->sock == NULL && vecs[0].len == generator->resp.sending.buf->size && generator->resp.receiving->size == 0) {
+        is_final = 1;
+        if (!(generator->leftsize == 0 || generator->leftsize == SIZE_MAX))
+            generator->req->http1_is_persistent = 0;
+    } else {
+        if (veccnt == 0)
+            return;
+        is_final = 0;
+    }
+    h2o_send(generator->req, vecs, veccnt, is_final ? H2O_SEND_STATE_FINAL : H2O_SEND_STATE_IN_PROGRESS);
+}
+
+static void send_eos_and_close(struct st_fcgi_generator_t *generator, int can_keepalive)
+{
+    if (generator->ctx->handler->config.keepalive_timeout != 0 && can_keepalive)
+        h2o_socketpool_return(&generator->ctx->handler->sockpool, generator->sock);
+    else
+        h2o_socket_close(generator->sock);
+    generator->sock = NULL;
+
+    if (h2o_timeout_is_linked(&generator->timeout))
+        h2o_timeout_unlink(&generator->timeout);
+
+    if (generator->resp.sending.bytes_inflight == 0)
+        do_send(generator);
+}
+
+static void errorclose(struct st_fcgi_generator_t *generator)
+{
+    if (generator->sent_headers) {
+        send_eos_and_close(generator, 0);
+    } else {
+        h2o_req_t *req = generator->req;
+        close_generator(generator);
+        h2o_send_error_503(req, "Internal Server Error", "Internal Server Error", 0);
+    }
+}
+
+static int _isdigit(int ch)
+{
+    return '0' <= ch && ch <= '9';
+}
+
+static int fill_headers(h2o_req_t *req, struct phr_header *headers, size_t num_headers)
+{
+    size_t i;
+
+    /* set the defaults */
+    req->res.status = 200;
+    req->res.reason = "OK";
+    req->res.content_length = SIZE_MAX;
+
+    for (i = 0; i != num_headers; ++i) {
+        const h2o_token_t *token;
+        h2o_strtolower((char *)headers[i].name, headers[i].name_len);
+        if ((token = h2o_lookup_token(headers[i].name, headers[i].name_len)) != NULL) {
+            if (token->proxy_should_drop_for_res) {
+                /* skip */
+            } else if (token == H2O_TOKEN_CONTENT_LENGTH) {
+                if (req->res.content_length != SIZE_MAX) {
+                    h2o_req_log_error(req, MODULE_NAME, "received multiple content-length headers from fcgi");
+                    return -1;
+                }
+                if ((req->res.content_length = h2o_strtosize(headers[i].value, headers[i].value_len)) == SIZE_MAX) {
+                    h2o_req_log_error(req, MODULE_NAME, "failed to parse content-length header sent from fcgi: %.*s",
+                                      (int)headers[i].value_len, headers[i].value);
+                    return -1;
+                }
+            } else {
+                /*
+                RFC 3875 defines three headers to have special meaning: Content-Type, Status, Location.
+                Status is handled as below.
+                Content-Type does not seem to have any need to be handled specially.
+                RFC suggests abs-path-style Location headers should trigger an internal redirection, but is that how the web servers
+                work?
+                 */
+                h2o_add_header(&req->pool, &req->res.headers, token, NULL,
+                               h2o_strdup(&req->pool, headers[i].value, headers[i].value_len).base, headers[i].value_len);
+                if (token == H2O_TOKEN_LINK)
+                    h2o_push_path_in_link_header(req, headers[i].value, headers[i].value_len);
+            }
+        } else if (h2o_memis(headers[i].name, headers[i].name_len, H2O_STRLIT("status"))) {
+            h2o_iovec_t value = h2o_iovec_init(headers[i].value, headers[i].value_len);
+            if (value.len < 3 || !(_isdigit(value.base[0]) && _isdigit(value.base[1]) && _isdigit(value.base[2])) ||
+                (value.len >= 4 && value.base[3] != ' ')) {
+                h2o_req_log_error(req, MODULE_NAME, "failed to parse Status header, got: %.*s", (int)value.len, value.base);
+                return -1;
+            }
+            req->res.status = (value.base[0] - '0') * 100 + (value.base[1] - '0') * 10 + (value.base[2] - '0');
+            req->res.reason = value.len >= 5 ? h2o_strdup(&req->pool, value.base + 4, value.len - 4).base : "OK";
+        } else {
+            h2o_iovec_t name_duped = h2o_strdup(&req->pool, headers[i].name, headers[i].name_len),
+                        value_duped = h2o_strdup(&req->pool, headers[i].value, headers[i].value_len);
+            h2o_add_header_by_str(&req->pool, &req->res.headers, name_duped.base, name_duped.len, 0, NULL, value_duped.base,
+                                  value_duped.len);
+        }
+    }
+
+    return 0;
+}
+
+static void append_content(struct st_fcgi_generator_t *generator, const void *src, size_t len)
+{
+    /* do not accumulate more than content-length bytes */
+    if (generator->leftsize != SIZE_MAX) {
+        if (generator->leftsize < len) {
+            len = generator->leftsize;
+            if (len == 0)
+                return;
+        }
+        generator->leftsize -= len;
+    }
+
+    h2o_iovec_t reserved = h2o_buffer_reserve(&generator->resp.receiving, len);
+    memcpy(reserved.base, src, len);
+    generator->resp.receiving->size += len;
+}
+
+static int handle_stdin_record(struct st_fcgi_generator_t *generator, struct st_fcgi_record_header_t *header)
+{
+    h2o_buffer_t *input = generator->sock->input;
+    struct phr_header headers[100];
+    size_t num_headers;
+    int parse_result;
+
+    if (header->contentLength == 0)
+        return 0;
+
+    if (generator->sent_headers) {
+        /* simply accumulate the data to response buffer */
+        append_content(generator, input->bytes + FCGI_RECORD_HEADER_SIZE, header->contentLength);
+        return 0;
+    }
+
+    /* parse the headers using the input buffer (or keep it in response buffer and parse) */
+    num_headers = sizeof(headers) / sizeof(headers[0]);
+    if (generator->resp.receiving->size == 0) {
+        parse_result = phr_parse_headers(input->bytes + FCGI_RECORD_HEADER_SIZE, header->contentLength, headers, &num_headers, 0);
+    } else {
+        size_t prevlen = generator->resp.receiving->size;
+        memcpy(h2o_buffer_reserve(&generator->resp.receiving, header->contentLength).base, input->bytes + FCGI_RECORD_HEADER_SIZE,
+               header->contentLength);
+        generator->resp.receiving->size = prevlen + header->contentLength;
+        parse_result =
+            phr_parse_headers(generator->resp.receiving->bytes, generator->resp.receiving->size, headers, &num_headers, prevlen);
+    }
+    if (parse_result < 0) {
+        if (parse_result == -2) {
+            /* incomplete */
+            if (generator->resp.receiving->size == 0) {
+                memcpy(h2o_buffer_reserve(&generator->resp.receiving, header->contentLength).base,
+                       input->bytes + FCGI_RECORD_HEADER_SIZE, header->contentLength);
+                generator->resp.receiving->size = header->contentLength;
+            }
+            return 0;
+        } else {
+            h2o_req_log_error(generator->req, MODULE_NAME, "received broken response");
+            return -1;
+        }
+    }
+
+    /* fill-in the headers, and start the response */
+    if (fill_headers(generator->req, headers, num_headers) != 0)
+        return -1;
+    generator->leftsize = generator->req->res.content_length;
+    h2o_start_response(generator->req, &generator->super);
+    generator->sent_headers = 1;
+
+    /* rest of the contents should be stored in the response buffer */
+    if (generator->resp.receiving->size == 0) {
+        size_t leftlen = header->contentLength - parse_result;
+        if (leftlen != 0) {
+            append_content(generator, input->bytes + FCGI_RECORD_HEADER_SIZE + parse_result, leftlen);
+        }
+    } else {
+        h2o_buffer_consume(&generator->resp.receiving, parse_result);
+    }
+
+    return 0;
+}
+
+static void on_rw_timeout(h2o_timeout_entry_t *entry)
+{
+    struct st_fcgi_generator_t *generator = H2O_STRUCT_FROM_MEMBER(struct st_fcgi_generator_t, timeout, entry);
+
+    h2o_req_log_error(generator->req, MODULE_NAME, "I/O timeout");
+    errorclose(generator);
+}
+
+static void on_read(h2o_socket_t *sock, const char *err)
+{
+    struct st_fcgi_generator_t *generator = sock->data;
+    int can_keepalive = 0;
+
+    if (err != NULL) {
+        /* note: FastCGI server is allowed to close the connection any time after sending an empty FCGI_STDOUT record */
+        if (!generator->sent_headers)
+            h2o_req_log_error(generator->req, MODULE_NAME, "fastcgi connection closed unexpectedly");
+        errorclose(generator);
+        return;
+    }
+
+    /* handle the records */
+    while (1) {
+        struct st_fcgi_record_header_t header;
+        size_t recsize;
+        if (sock->input->size < FCGI_RECORD_HEADER_SIZE)
+            break;
+        decode_header(&header, sock->input->bytes);
+        recsize = FCGI_RECORD_HEADER_SIZE + header.contentLength + header.paddingLength;
+        if (sock->input->size < recsize)
+            break;
+        /* we have a complete record */
+        switch (header.type) {
+        case FCGI_STDOUT:
+            if (handle_stdin_record(generator, &header) != 0)
+                goto Error;
+            h2o_buffer_consume(&sock->input, recsize);
+            break;
+        case FCGI_STDERR:
+            if (header.contentLength != 0)
+                h2o_req_log_error(generator->req, MODULE_NAME, "%.*s", (int)header.contentLength,
+                                  sock->input->bytes + FCGI_RECORD_HEADER_SIZE);
+            h2o_buffer_consume(&sock->input, recsize);
+            break;
+        case FCGI_END_REQUEST:
+            if (!generator->sent_headers) {
+                h2o_req_log_error(generator->req, MODULE_NAME, "received FCGI_END_REQUEST before end of the headers");
+                goto Error;
+            }
+            h2o_buffer_consume(&sock->input, recsize);
+            can_keepalive = 1;
+            goto EOS_Received;
+        default:
+            h2o_req_log_error(generator->req, MODULE_NAME, "received unexpected record, type: %u", header.type);
+            h2o_buffer_consume(&sock->input, recsize);
+            if (!generator->sent_headers)
+                goto Error;
+            goto EOS_Received;
+        }
+    }
+
+    /* send data if necessary */
+    if (generator->sent_headers && generator->resp.sending.bytes_inflight == 0)
+        do_send(generator);
+
+    set_timeout(generator, &generator->ctx->io_timeout, on_rw_timeout);
+    return;
+
+EOS_Received:
+    send_eos_and_close(generator, can_keepalive);
+    return;
+
+Error:
+    errorclose(generator);
+}
+
+static void on_send_complete(h2o_socket_t *sock, const char *err)
+{
+    struct st_fcgi_generator_t *generator = sock->data;
+
+    set_timeout(generator, &generator->ctx->io_timeout, on_rw_timeout);
+    /* do nothing else!  all the rest is handled by the on_read */
+}
+
+static void on_connect(h2o_socket_t *sock, const char *errstr, void *data)
+{
+    struct st_fcgi_generator_t *generator = data;
+    iovec_vector_t vecs;
+
+    generator->connect_req = NULL;
+
+    if (sock == NULL) {
+        h2o_req_log_error(generator->req, MODULE_NAME, "connection failed:%s", errstr);
+        errorclose(generator);
+        return;
+    }
+
+    generator->sock = sock;
+    sock->data = generator;
+
+    build_request(generator->req, &vecs, 1, 65535, &generator->ctx->handler->config);
+
+    /* start sending the response */
+    h2o_socket_write(generator->sock, vecs.entries, vecs.size, on_send_complete);
+
+    set_timeout(generator, &generator->ctx->io_timeout, on_rw_timeout);
+
+    /* activate the receiver; note: FCGI spec allows the app to start sending the response before it receives FCGI_STDIN */
+    h2o_socket_read_start(sock, on_read);
+}
+
+static void do_proceed(h2o_generator_t *_generator, h2o_req_t *req)
+{
+    struct st_fcgi_generator_t *generator = (void *)_generator;
+
+    h2o_doublebuffer_consume(&generator->resp.sending);
+    do_send(generator);
+}
+
+static void do_stop(h2o_generator_t *_generator, h2o_req_t *req)
+{
+    struct st_fcgi_generator_t *generator = (void *)_generator;
+    close_generator(generator);
+}
+
+static void on_connect_timeout(h2o_timeout_entry_t *entry)
+{
+    struct st_fcgi_generator_t *generator = H2O_STRUCT_FROM_MEMBER(struct st_fcgi_generator_t, timeout, entry);
+
+    h2o_req_log_error(generator->req, MODULE_NAME, "connect timeout");
+    errorclose(generator);
+}
+
+static int on_req(h2o_handler_t *_handler, h2o_req_t *req)
+{
+    h2o_fastcgi_handler_t *handler = (void *)_handler;
+    struct st_fcgi_generator_t *generator;
+
+    generator = h2o_mem_alloc_shared(&req->pool, sizeof(*generator), (void (*)(void *))close_generator);
+    generator->super.proceed = do_proceed;
+    generator->super.stop = do_stop;
+    generator->ctx = h2o_context_get_handler_context(req->conn->ctx, &handler->super);
+    generator->req = req;
+    generator->sock = NULL;
+    generator->sent_headers = 0;
+    h2o_doublebuffer_init(&generator->resp.sending, &h2o_socket_buffer_prototype);
+    h2o_buffer_init(&generator->resp.receiving, &h2o_socket_buffer_prototype);
+    generator->timeout = (h2o_timeout_entry_t){0};
+
+    set_timeout(generator, &generator->ctx->io_timeout, on_connect_timeout);
+    h2o_socketpool_connect(&generator->connect_req, &handler->sockpool, req->conn->ctx->loop,
+                           &req->conn->ctx->receivers.hostinfo_getaddr, on_connect, generator);
+
+    return 0;
+}
+
+static void on_context_init(h2o_handler_t *_handler, h2o_context_t *ctx)
+{
+    h2o_fastcgi_handler_t *handler = (void *)_handler;
+    struct st_fcgi_context_t *handler_ctx = h2o_mem_alloc(sizeof(*handler_ctx));
+
+    /* use the first event loop for handling timeouts of the socket pool */
+    if (handler->sockpool.timeout == UINT64_MAX)
+        h2o_socketpool_set_timeout(&handler->sockpool, ctx->loop,
+                                   handler->config.keepalive_timeout != 0 ? handler->config.keepalive_timeout : 60000);
+
+    handler_ctx->handler = handler;
+    h2o_timeout_init(ctx->loop, &handler_ctx->io_timeout, handler->config.io_timeout);
+
+    h2o_context_set_handler_context(ctx, &handler->super, handler_ctx);
+}
+
+static void on_context_dispose(h2o_handler_t *_handler, h2o_context_t *ctx)
+{
+    h2o_fastcgi_handler_t *handler = (void *)_handler;
+    struct st_fcgi_context_t *handler_ctx = h2o_context_get_handler_context(ctx, &handler->super);
+
+    if (handler_ctx == NULL)
+        return;
+
+    h2o_timeout_dispose(ctx->loop, &handler_ctx->io_timeout);
+    free(handler_ctx);
+}
+
+static void on_handler_dispose(h2o_handler_t *_handler)
+{
+    h2o_fastcgi_handler_t *handler = (void *)_handler;
+
+    if (handler->config.callbacks.dispose != NULL)
+        handler->config.callbacks.dispose(handler, handler->config.callbacks.data);
+
+    h2o_socketpool_dispose(&handler->sockpool);
+    free(handler->config.document_root.base);
+}
+
+static h2o_fastcgi_handler_t *register_common(h2o_pathconf_t *pathconf, h2o_fastcgi_config_vars_t *vars)
+{
+    h2o_fastcgi_handler_t *handler = (void *)h2o_create_handler(pathconf, sizeof(*handler));
+
+    handler->super.on_context_init = on_context_init;
+    handler->super.on_context_dispose = on_context_dispose;
+    handler->super.dispose = on_handler_dispose;
+    handler->super.on_req = on_req;
+    handler->config = *vars;
+    if (vars->document_root.base != NULL)
+        handler->config.document_root = h2o_strdup(NULL, vars->document_root.base, vars->document_root.len);
+
+    return handler;
+}
+
+h2o_fastcgi_handler_t *h2o_fastcgi_register_by_hostport(h2o_pathconf_t *pathconf, const char *host, uint16_t port,
+                                                        h2o_fastcgi_config_vars_t *vars)
+{
+    h2o_fastcgi_handler_t *handler = register_common(pathconf, vars);
+
+    h2o_socketpool_init_by_hostport(&handler->sockpool, h2o_iovec_init(host, strlen(host)), port, 0, SIZE_MAX /* FIXME */);
+    return handler;
+}
+
+h2o_fastcgi_handler_t *h2o_fastcgi_register_by_address(h2o_pathconf_t *pathconf, struct sockaddr *sa, socklen_t salen,
+                                                       h2o_fastcgi_config_vars_t *vars)
+{
+    h2o_fastcgi_handler_t *handler = register_common(pathconf, vars);
+
+    h2o_socketpool_init_by_address(&handler->sockpool, sa, salen, 0, SIZE_MAX /* FIXME */);
+    return handler;
+}
diff --git a/debian/vendor-h2o/lib/handler/file.c b/debian/vendor-h2o/lib/handler/file.c
new file mode 100644
index 0000000..5d7c7a2
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/file.c
@@ -0,0 +1,966 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku, Domingo Alvarez Duarte,
+ *                         Tatsuhiko Kubo, Nick Desaulniers, Marc Hoersken,
+ *                         Justin Zhu, Tatsuhiro Tsujikawa
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "h2o.h"
+
+#define MAX_BUF_SIZE 65000
+#define BOUNDARY_SIZE 20
+#define FIXED_PART_SIZE (sizeof("\r\n--") - 1 + BOUNDARY_SIZE + sizeof("\r\nContent-Range: bytes=-/\r\nContent-Type: \r\n\r\n") - 1)
+
+struct st_h2o_sendfile_generator_t {
+    h2o_generator_t super;
+    struct {
+        h2o_filecache_ref_t *ref;
+        off_t off;
+    } file;
+    h2o_req_t *req;
+    size_t bytesleft;
+    h2o_iovec_t content_encoding;
+    unsigned send_vary : 1;
+    unsigned send_etag : 1;
+    unsigned gunzip : 1;
+    char *buf;
+    struct {
+        size_t filesize;
+        size_t range_count;
+        size_t *range_infos;  /* size_t shows in pair. first is start offset, then length */
+        h2o_iovec_t boundary; /* boundary used for multipart/byteranges */
+        h2o_iovec_t mimetype; /* original mimetype for multipart */
+        size_t current_range; /* range that processing now */
+    } ranged;
+    struct {
+        char last_modified[H2O_TIMESTR_RFC1123_LEN + 1];
+        char etag[H2O_FILECACHE_ETAG_MAXLEN + 1];
+    } header_bufs;
+};
+
+struct st_h2o_file_handler_t {
+    h2o_handler_t super;
+    h2o_iovec_t conf_path; /* has "/" appended at last */
+    h2o_iovec_t real_path; /* has "/" appended at last */
+    h2o_mimemap_t *mimemap;
+    int flags;
+    size_t max_index_file_len;
+    h2o_iovec_t index_files[1];
+};
+
+struct st_h2o_specific_file_handler_t {
+    h2o_handler_t super;
+    h2o_iovec_t real_path;
+    h2o_mimemap_type_t *mime_type;
+    int flags;
+};
+
+struct st_gzip_decompress_t {
+    h2o_ostream_t super;
+    h2o_compress_context_t *decompressor;
+};
+
+static const char *default_index_files[] = {"index.html", "index.htm", "index.txt", NULL};
+
+const char **h2o_file_default_index_files = default_index_files;
+
+#include "file/templates.c.h"
+
+static int tm_is_lessthan(struct tm *x, struct tm *y)
+{
+#define CMP(f)                                                                                                                     \
+    if (x->f < y->f)                                                                                                               \
+        return 1;                                                                                                                  \
+    else if (x->f > y->f)                                                                                                          \
+        return 0;
+    CMP(tm_year);
+    CMP(tm_mon);
+    CMP(tm_mday);
+    CMP(tm_hour);
+    CMP(tm_min);
+    CMP(tm_sec);
+    return 0;
+#undef CMP
+}
+
+static void do_close(h2o_generator_t *_self, h2o_req_t *req)
+{
+    struct st_h2o_sendfile_generator_t *self = (void *)_self;
+    h2o_filecache_close_file(self->file.ref);
+}
+
+static void do_proceed(h2o_generator_t *_self, h2o_req_t *req)
+{
+    struct st_h2o_sendfile_generator_t *self = (void *)_self;
+    size_t rlen;
+    ssize_t rret;
+    h2o_iovec_t vec;
+    h2o_send_state_t send_state;
+
+    /* read the file */
+    rlen = self->bytesleft;
+    if (rlen > MAX_BUF_SIZE)
+        rlen = MAX_BUF_SIZE;
+    while ((rret = pread(self->file.ref->fd, self->buf, rlen, self->file.off)) == -1 && errno == EINTR)
+        ;
+    if (rret == -1) {
+        h2o_send(req, NULL, 0, H2O_SEND_STATE_ERROR);
+        do_close(&self->super, req);
+        return;
+    }
+    self->file.off += rret;
+    self->bytesleft -= rret;
+    if (self->bytesleft == 0) {
+        send_state = H2O_SEND_STATE_FINAL;
+    } else {
+        send_state = H2O_SEND_STATE_IN_PROGRESS;
+    }
+
+    /* send (and close if done) */
+    vec.base = self->buf;
+    vec.len = rret;
+    h2o_send(req, &vec, 1, send_state);
+    if (send_state == H2O_SEND_STATE_FINAL)
+        do_close(&self->super, req);
+}
+
+static void do_multirange_proceed(h2o_generator_t *_self, h2o_req_t *req)
+{
+    struct st_h2o_sendfile_generator_t *self = (void *)_self;
+    size_t rlen, used_buf = 0;
+    ssize_t rret, vecarrsize;
+    h2o_iovec_t vec[2];
+    h2o_send_state_t send_state;
+
+    if (self->bytesleft == 0) {
+        size_t *range_cur = self->ranged.range_infos + 2 * self->ranged.current_range;
+        size_t range_end = *range_cur + *(range_cur + 1) - 1;
+        if (H2O_LIKELY(self->ranged.current_range != 0))
+            used_buf =
+                sprintf(self->buf, "\r\n--%s\r\nContent-Type: %s\r\nContent-Range: bytes %zd-%zd/%zd\r\n\r\n",
+                        self->ranged.boundary.base, self->ranged.mimetype.base, *range_cur, range_end, self->ranged.filesize);
+        else
+            used_buf =
+                sprintf(self->buf, "--%s\r\nContent-Type: %s\r\nContent-Range: bytes %zd-%zd/%zd\r\n\r\n",
+                        self->ranged.boundary.base, self->ranged.mimetype.base, *range_cur, range_end, self->ranged.filesize);
+        self->ranged.current_range++;
+        self->file.off = *range_cur;
+        self->bytesleft = *++range_cur;
+    }
+    rlen = self->bytesleft;
+    if (rlen + used_buf > MAX_BUF_SIZE)
+        rlen = MAX_BUF_SIZE - used_buf;
+    while ((rret = pread(self->file.ref->fd, self->buf + used_buf, rlen, self->file.off)) == -1 && errno == EINTR)
+        ;
+    if (rret == -1)
+        goto Error;
+    self->file.off += rret;
+    self->bytesleft -= rret;
+
+    vec[0].base = self->buf;
+    vec[0].len = rret + used_buf;
+    if (self->ranged.current_range == self->ranged.range_count && self->bytesleft == 0) {
+        vec[1].base = h2o_mem_alloc_pool(&req->pool, sizeof("\r\n--") - 1 + BOUNDARY_SIZE + sizeof("--\r\n"));
+        vec[1].len = sprintf(vec[1].base, "\r\n--%s--\r\n", self->ranged.boundary.base);
+        vecarrsize = 2;
+        send_state = H2O_SEND_STATE_FINAL;
+    } else {
+        vecarrsize = 1;
+        send_state = H2O_SEND_STATE_IN_PROGRESS;
+    }
+    h2o_send(req, vec, vecarrsize, send_state);
+    if (send_state == H2O_SEND_STATE_FINAL)
+        do_close(&self->super, req);
+    return;
+
+Error:
+    h2o_send(req, NULL, 0, H2O_SEND_STATE_ERROR);
+    do_close(&self->super, req);
+    return;
+}
+
+static h2o_send_state_t do_pull(h2o_generator_t *_self, h2o_req_t *req, h2o_iovec_t *buf)
+{
+    struct st_h2o_sendfile_generator_t *self = (void *)_self;
+    ssize_t rret;
+
+    if (self->bytesleft < buf->len)
+        buf->len = self->bytesleft;
+    while ((rret = pread(self->file.ref->fd, buf->base, buf->len, self->file.off)) == -1 && errno == EINTR)
+        ;
+    if (rret <= 0) {
+        buf->len = 0;
+        self->bytesleft = 0;
+        do_close(&self->super, req);
+        return H2O_SEND_STATE_ERROR;
+    } else {
+        buf->len = rret;
+        self->file.off += rret;
+        self->bytesleft -= rret;
+    }
+
+    if (self->bytesleft != 0)
+        return H2O_SEND_STATE_IN_PROGRESS;
+    do_close(&self->super, req);
+    return H2O_SEND_STATE_FINAL;
+}
+
+static struct st_h2o_sendfile_generator_t *create_generator(h2o_req_t *req, const char *path, size_t path_len, int *is_dir,
+                                                            int flags)
+{
+    struct st_h2o_sendfile_generator_t *self;
+    h2o_filecache_ref_t *fileref;
+    h2o_iovec_t content_encoding = (h2o_iovec_t){NULL};
+    unsigned gunzip = 0;
+
+    *is_dir = 0;
+
+    if ((flags & H2O_FILE_FLAG_SEND_COMPRESSED) != 0 && req->version >= 0x101) {
+        int compressible_types = h2o_get_compressible_types(&req->headers);
+        if (compressible_types != 0) {
+            char *variant_path = h2o_mem_alloc_pool(&req->pool, path_len + sizeof(".gz"));
+            memcpy(variant_path, path, path_len);
+#define TRY_VARIANT(mask, enc, ext)                                                                                                \
+    if ((compressible_types & mask) != 0) {                                                                                        \
+        strcpy(variant_path + path_len, ext);                                                                                      \
+        if ((fileref = h2o_filecache_open_file(req->conn->ctx->filecache, variant_path, O_RDONLY | O_CLOEXEC)) != NULL) {          \
+            content_encoding = h2o_iovec_init(enc, sizeof(enc) - 1);                                                               \
+            goto Opened;                                                                                                           \
+        }                                                                                                                          \
+    }
+            TRY_VARIANT(H2O_COMPRESSIBLE_BROTLI, "br", ".br");
+            TRY_VARIANT(H2O_COMPRESSIBLE_GZIP, "gzip", ".gz");
+#undef TRY_VARIANT
+        }
+    }
+    if ((fileref = h2o_filecache_open_file(req->conn->ctx->filecache, path, O_RDONLY | O_CLOEXEC)) != NULL) {
+        goto Opened;
+    }
+    if ((flags & H2O_FILE_FLAG_GUNZIP) != 0 && req->version >= 0x101) {
+        char *variant_path = h2o_mem_alloc_pool(&req->pool, path_len + sizeof(".gz"));
+        memcpy(variant_path, path, path_len);
+        strcpy(variant_path + path_len, ".gz");
+        if ((fileref = h2o_filecache_open_file(req->conn->ctx->filecache, variant_path, O_RDONLY | O_CLOEXEC)) != NULL) {
+            gunzip = 1;
+            goto Opened;
+        }
+    }
+    return NULL;
+
+Opened:
+    if (S_ISDIR(fileref->st.st_mode)) {
+        h2o_filecache_close_file(fileref);
+        *is_dir = 1;
+        return NULL;
+    }
+
+    self = h2o_mem_alloc_pool(&req->pool, sizeof(*self));
+    self->super.proceed = do_proceed;
+    self->super.stop = do_close;
+    self->file.ref = fileref;
+    self->file.off = 0;
+    self->req = NULL;
+    self->bytesleft = self->file.ref->st.st_size;
+    self->ranged.range_count = 0;
+    self->ranged.range_infos = NULL;
+    self->content_encoding = content_encoding;
+    self->send_vary = (flags & H2O_FILE_FLAG_SEND_COMPRESSED) != 0;
+    self->send_etag = (flags & H2O_FILE_FLAG_NO_ETAG) == 0;
+    self->gunzip = gunzip;
+
+    return self;
+}
+
+static void add_headers_unconditional(struct st_h2o_sendfile_generator_t *self, h2o_req_t *req)
+{
+    /* RFC 7232 4.1: The server generating a 304 response MUST generate any of the following header fields that would have been sent
+     * in a 200 (OK) response to the same request: Cache-Control, Content-Location, Date, ETag, Expires, and Vary (snip) a sender
+     * SHOULD NOT generate representation metadata other than the above listed fields unless said metadata exists for the purpose of
+     * guiding cache updates. */
+    if (self->send_etag) {
+        size_t etag_len = h2o_filecache_get_etag(self->file.ref, self->header_bufs.etag);
+        h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_ETAG, NULL, self->header_bufs.etag, etag_len);
+    }
+    if (self->send_vary)
+        h2o_set_header_token(&req->pool, &req->res.headers, H2O_TOKEN_VARY, H2O_STRLIT("accept-encoding"));
+}
+
+static void send_decompressed(h2o_ostream_t *_self, h2o_req_t *req, h2o_iovec_t *inbufs, size_t inbufcnt, h2o_send_state_t state)
+{
+    struct st_gzip_decompress_t *self = (void *)_self;
+    h2o_iovec_t *outbufs;
+    size_t outbufcnt;
+
+    self->decompressor->transform(self->decompressor, inbufs, inbufcnt, state, &outbufs, &outbufcnt);
+    h2o_ostream_send_next(&self->super, req, outbufs, outbufcnt, state);
+}
+
+static void do_send_file(struct st_h2o_sendfile_generator_t *self, h2o_req_t *req, int status, const char *reason,
+                         h2o_iovec_t mime_type, h2o_mime_attributes_t *mime_attr, int is_get)
+{
+    /* link the request */
+    self->req = req;
+
+    /* setup response */
+    req->res.status = status;
+    req->res.reason = reason;
+    req->res.content_length = self->gunzip ? SIZE_MAX : self->bytesleft;
+    req->res.mime_attr = mime_attr;
+
+    if (self->ranged.range_count > 1) {
+        mime_type.base = h2o_mem_alloc_pool(&req->pool, 52);
+        mime_type.len = sprintf(mime_type.base, "multipart/byteranges; boundary=%s", self->ranged.boundary.base);
+    }
+    h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CONTENT_TYPE, NULL, mime_type.base, mime_type.len);
+    h2o_filecache_get_last_modified(self->file.ref, self->header_bufs.last_modified);
+    h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_LAST_MODIFIED, NULL, self->header_bufs.last_modified,
+                   H2O_TIMESTR_RFC1123_LEN);
+    add_headers_unconditional(self, req);
+    if (self->content_encoding.base != NULL)
+        h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CONTENT_ENCODING, NULL, self->content_encoding.base,
+                       self->content_encoding.len);
+    if (self->ranged.range_count == 0)
+        h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_ACCEPT_RANGES, NULL, H2O_STRLIT("bytes"));
+    else if (self->ranged.range_count == 1) {
+        h2o_iovec_t content_range;
+        content_range.base = h2o_mem_alloc_pool(&req->pool, 128);
+        content_range.len = sprintf(content_range.base, "bytes %zd-%zd/%zd", self->ranged.range_infos[0],
+                                    self->ranged.range_infos[0] + self->ranged.range_infos[1] - 1, self->ranged.filesize);
+        h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CONTENT_RANGE, NULL, content_range.base, content_range.len);
+    }
+
+    /* special path for cases where we do not need to send any data */
+    if (!is_get || self->bytesleft == 0) {
+        static h2o_generator_t generator = {NULL, NULL};
+        h2o_start_response(req, &generator);
+        h2o_send(req, NULL, 0, H2O_SEND_STATE_FINAL);
+        do_close(&self->super, req);
+        return;
+    }
+
+    /* send data */
+    h2o_start_response(req, &self->super);
+
+    /* dynamically setup gzip decompress ostream */
+    if (self->gunzip) {
+        struct st_gzip_decompress_t *decoder = (void *)h2o_add_ostream(req, sizeof(struct st_gzip_decompress_t), &req->_ostr_top);
+        decoder->decompressor = h2o_compress_gunzip_open(&req->pool);
+        decoder->super.do_send = send_decompressed;
+    }
+
+    if (self->ranged.range_count == 1)
+        self->file.off = self->ranged.range_infos[0];
+    if (req->_ostr_top->start_pull != NULL && self->ranged.range_count < 2) {
+        req->_ostr_top->start_pull(req->_ostr_top, do_pull);
+    } else {
+        size_t bufsz = MAX_BUF_SIZE;
+        if (self->bytesleft < bufsz)
+            bufsz = self->bytesleft;
+        self->buf = h2o_mem_alloc_pool(&req->pool, bufsz);
+        if (self->ranged.range_count < 2)
+            do_proceed(&self->super, req);
+        else {
+            self->bytesleft = 0;
+            self->super.proceed = do_multirange_proceed;
+            do_multirange_proceed(&self->super, req);
+        }
+    }
+}
+
+int h2o_file_send(h2o_req_t *req, int status, const char *reason, const char *path, h2o_iovec_t mime_type, int flags)
+{
+    struct st_h2o_sendfile_generator_t *self;
+    int is_dir;
+
+    if ((self = create_generator(req, path, strlen(path), &is_dir, flags)) == NULL)
+        return -1;
+    /* note: is_dir is not handled */
+    do_send_file(self, req, status, reason, mime_type, NULL, 1);
+    return 0;
+}
+
+static int send_dir_listing(h2o_req_t *req, const char *path, size_t path_len, int is_get)
+{
+    static h2o_generator_t generator = {NULL, NULL};
+    DIR *dp;
+    h2o_buffer_t *body;
+    h2o_iovec_t bodyvec;
+
+    /* build html */
+    if ((dp = opendir(path)) == NULL)
+        return -1;
+    body = build_dir_listing_html(&req->pool, req->path_normalized, dp);
+    closedir(dp);
+
+    bodyvec = h2o_iovec_init(body->bytes, body->size);
+    h2o_buffer_link_to_pool(body, &req->pool);
+
+    /* send response */
+    req->res.status = 200;
+    req->res.reason = "OK";
+    h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CONTENT_TYPE, NULL, H2O_STRLIT("text/html; charset=utf-8"));
+
+    /* send headers */
+    if (!is_get) {
+        h2o_send_inline(req, NULL, 0);
+        return 0;
+    }
+
+    /* send data */
+    h2o_start_response(req, &generator);
+    h2o_send(req, &bodyvec, 1, H2O_SEND_STATE_FINAL);
+    return 0;
+}
+
+static size_t *process_range(h2o_mem_pool_t *pool, h2o_iovec_t *range_value, size_t file_size, size_t *ret)
+{
+#define CHECK_EOF()                                                                                                                \
+    if (buf == buf_end)                                                                                                            \
+        return NULL;
+
+#define CHECK_OVERFLOW(range)                                                                                                      \
+    if (range == SIZE_MAX)                                                                                                         \
+        return NULL;
+
+    size_t range_start = SIZE_MAX, range_count = 0;
+    char *buf = range_value->base, *buf_end = buf + range_value->len;
+    int needs_comma = 0;
+    H2O_VECTOR(size_t) ranges = {NULL};
+
+    if (range_value->len < 6 || memcmp(buf, "bytes=", 6) != 0)
+        return NULL;
+
+    buf += 6;
+    CHECK_EOF();
+
+    /* most range requests contain only one range */
+    do {
+        while (1) {
+            if (*buf != ',') {
+                if (needs_comma)
+                    return NULL;
+                break;
+            }
+            needs_comma = 0;
+            buf++;
+            while (H2O_UNLIKELY(*buf == ' ') || H2O_UNLIKELY(*buf == '\t')) {
+                buf++;
+                CHECK_EOF();
+            }
+        }
+        if (H2O_UNLIKELY(buf == buf_end))
+            break;
+        if (H2O_LIKELY((range_start = h2o_strtosizefwd(&buf, buf_end - buf)) != SIZE_MAX)) {
+            CHECK_EOF();
+            if (*buf++ != '-')
+                return NULL;
+            range_count = h2o_strtosizefwd(&buf, buf_end - buf);
+            if (H2O_UNLIKELY(range_start >= file_size)) {
+                range_start = SIZE_MAX;
+            } else if (H2O_LIKELY(range_count != SIZE_MAX)) {
+                if (H2O_UNLIKELY(range_count > file_size - 1))
+                    range_count = file_size - 1;
+                if (H2O_LIKELY(range_start <= range_count))
+                    range_count -= range_start - 1;
+                else
+                    range_start = SIZE_MAX;
+            } else {
+                range_count = file_size - range_start;
+            }
+        } else if (H2O_LIKELY(*buf++ == '-')) {
+            CHECK_EOF();
+            range_count = h2o_strtosizefwd(&buf, buf_end - buf);
+            if (H2O_UNLIKELY(range_count == SIZE_MAX))
+                return NULL;
+            if (H2O_LIKELY(range_count != 0)) {
+                if (H2O_UNLIKELY(range_count > file_size))
+                    range_count = file_size;
+                range_start = file_size - range_count;
+            } else {
+                range_start = SIZE_MAX;
+            }
+        } else {
+            return NULL;
+        }
+
+        if (H2O_LIKELY(range_start != SIZE_MAX)) {
+            h2o_vector_reserve(pool, &ranges, ranges.size + 2);
+            ranges.entries[ranges.size++] = range_start;
+            ranges.entries[ranges.size++] = range_count;
+        }
+        if (buf != buf_end)
+            while (H2O_UNLIKELY(*buf == ' ') || H2O_UNLIKELY(*buf == '\t')) {
+                buf++;
+                CHECK_EOF();
+            }
+        needs_comma = 1;
+    } while (H2O_UNLIKELY(buf < buf_end));
+    *ret = ranges.size / 2;
+    return ranges.entries;
+#undef CHECK_EOF
+#undef CHECK_OVERFLOW
+}
+
+static void gen_rand_string(h2o_iovec_t *s)
+{
+    int i;
+    static const char alphanum[] = "0123456789"
+                                   "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+                                   "abcdefghijklmnopqrstuvwxyz";
+
+    for (i = 0; i < s->len; ++i) {
+        s->base[i] = alphanum[h2o_rand() % (sizeof(alphanum) - 1)];
+    }
+
+    s->base[s->len] = 0;
+}
+
+static int delegate_dynamic_request(h2o_req_t *req, h2o_iovec_t script_name, h2o_iovec_t path_info, const char *local_path,
+                                    size_t local_path_len, h2o_mimemap_type_t *mime_type)
+{
+    h2o_filereq_t *filereq;
+    h2o_handler_t *handler;
+
+    assert(mime_type->data.dynamic.pathconf.handlers.size == 1);
+
+    filereq = h2o_mem_alloc_pool(&req->pool, sizeof(*filereq));
+    filereq->script_name = script_name;
+    filereq->path_info = path_info;
+    filereq->local_path = h2o_strdup(&req->pool, local_path, local_path_len);
+
+    h2o_req_bind_conf(req, req->hostconf, &mime_type->data.dynamic.pathconf);
+    req->filereq = filereq;
+
+    handler = mime_type->data.dynamic.pathconf.handlers.entries[0];
+    return handler->on_req(handler, req);
+}
+
+static int try_dynamic_request(h2o_file_handler_t *self, h2o_req_t *req, char *rpath, size_t rpath_len)
+{
+    /* we have full local path in {rpath,rpath_len}, and need to split it into name and path_info */
+    struct stat st;
+    size_t slash_at = self->real_path.len;
+
+    while (1) {
+        /* find the next slash (or return -1 if failed) */
+        for (++slash_at;; ++slash_at) {
+            if (slash_at >= rpath_len)
+                return -1;
+            if (rpath[slash_at] == '/')
+                break;
+        }
+        /* change the slash to '\0', and check if the file exists */
+        rpath[slash_at] = '\0';
+        if (stat(rpath, &st) != 0)
+            return -1;
+        if (!S_ISDIR(st.st_mode))
+            break;
+        /* restore slash, and continue the search */
+        rpath[slash_at] = '/';
+    }
+
+    /* file found! */
+    h2o_mimemap_type_t *mime_type = h2o_mimemap_get_type_by_extension(self->mimemap, h2o_get_filext(rpath, slash_at));
+    switch (mime_type->type) {
+    case H2O_MIMEMAP_TYPE_MIMETYPE:
+        return -1;
+    case H2O_MIMEMAP_TYPE_DYNAMIC: {
+        h2o_iovec_t script_name = h2o_iovec_init(req->path_normalized.base, self->conf_path.len + slash_at - self->real_path.len);
+        h2o_iovec_t path_info =
+            h2o_iovec_init(req->path_normalized.base + script_name.len, req->path_normalized.len - script_name.len);
+        return delegate_dynamic_request(req, script_name, path_info, rpath, slash_at, mime_type);
+    }
+    }
+    fprintf(stderr, "unknown h2o_miemmap_type_t::type (%d)\n", (int)mime_type->type);
+    abort();
+}
+
+static void send_method_not_allowed(h2o_req_t *req)
+{
+    h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_ALLOW, NULL, H2O_STRLIT("GET, HEAD"));
+    h2o_send_error_405(req, "Method Not Allowed", "method not allowed", H2O_SEND_ERROR_KEEP_HEADERS);
+}
+
+static int serve_with_generator(struct st_h2o_sendfile_generator_t *generator, h2o_req_t *req, h2o_iovec_t resolved_path,
+                                const char *rpath, size_t rpath_len, h2o_mimemap_type_t *mime_type)
+{
+    enum { METHOD_IS_GET, METHOD_IS_HEAD, METHOD_IS_OTHER } method_type;
+    size_t if_modified_since_header_index, if_none_match_header_index;
+    size_t range_header_index;
+
+    /* determine the method */
+    if (h2o_memis(req->method.base, req->method.len, H2O_STRLIT("GET"))) {
+        method_type = METHOD_IS_GET;
+    } else if (h2o_memis(req->method.base, req->method.len, H2O_STRLIT("HEAD"))) {
+        method_type = METHOD_IS_HEAD;
+    } else {
+        method_type = METHOD_IS_OTHER;
+    }
+
+    /* obtain mime type */
+    if (mime_type->type == H2O_MIMEMAP_TYPE_DYNAMIC) {
+        do_close(&generator->super, req);
+        return delegate_dynamic_request(req, resolved_path, h2o_iovec_init(NULL, 0), rpath, rpath_len, mime_type);
+    }
+    assert(mime_type->type == H2O_MIMEMAP_TYPE_MIMETYPE);
+
+    /* if-non-match and if-modified-since */
+    if ((if_none_match_header_index = h2o_find_header(&req->headers, H2O_TOKEN_IF_NONE_MATCH, SIZE_MAX)) != -1) {
+        h2o_iovec_t *if_none_match = &req->headers.entries[if_none_match_header_index].value;
+        char etag[H2O_FILECACHE_ETAG_MAXLEN + 1];
+        size_t etag_len = h2o_filecache_get_etag(generator->file.ref, etag);
+        if (h2o_memis(if_none_match->base, if_none_match->len, etag, etag_len))
+            goto NotModified;
+    } else if ((if_modified_since_header_index = h2o_find_header(&req->headers, H2O_TOKEN_IF_MODIFIED_SINCE, SIZE_MAX)) != -1) {
+        h2o_iovec_t *ims_vec = &req->headers.entries[if_modified_since_header_index].value;
+        struct tm ims_tm, *last_modified_tm;
+        if (h2o_time_parse_rfc1123(ims_vec->base, ims_vec->len, &ims_tm) == 0) {
+            last_modified_tm = h2o_filecache_get_last_modified(generator->file.ref, NULL);
+            if (!tm_is_lessthan(&ims_tm, last_modified_tm))
+                goto NotModified;
+        }
+    }
+
+    /* only allow GET or POST for static files */
+    if (method_type == METHOD_IS_OTHER) {
+        do_close(&generator->super, req);
+        send_method_not_allowed(req);
+        return 0;
+    }
+
+    /* if-range */
+    if ((range_header_index = h2o_find_header(&req->headers, H2O_TOKEN_RANGE, SIZE_MAX)) != -1) {
+        h2o_iovec_t *range = &req->headers.entries[range_header_index].value;
+        size_t *range_infos, range_count;
+        range_infos = process_range(&req->pool, range, generator->bytesleft, &range_count);
+        if (range_infos == NULL) {
+            h2o_iovec_t content_range;
+            content_range.base = h2o_mem_alloc_pool(&req->pool, 32);
+            content_range.len = sprintf(content_range.base, "bytes */%zu", generator->bytesleft);
+            h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CONTENT_RANGE, NULL, content_range.base, content_range.len);
+            h2o_send_error_416(req, "Request Range Not Satisfiable", "requested range not satisfiable",
+                               H2O_SEND_ERROR_KEEP_HEADERS);
+            goto Close;
+        }
+        generator->ranged.range_count = range_count;
+        generator->ranged.range_infos = range_infos;
+        generator->ranged.current_range = 0;
+        generator->ranged.filesize = generator->bytesleft;
+
+        /* set content-length according to range */
+        if (range_count == 1)
+            generator->bytesleft = range_infos[1];
+        else {
+            generator->ranged.mimetype = h2o_strdup(&req->pool, mime_type->data.mimetype.base, mime_type->data.mimetype.len);
+            size_t final_content_len = 0, size_tmp = 0, size_fixed_each_part, i;
+            generator->ranged.boundary.base = h2o_mem_alloc_pool(&req->pool, BOUNDARY_SIZE + 1);
+            generator->ranged.boundary.len = BOUNDARY_SIZE;
+            gen_rand_string(&generator->ranged.boundary);
+            i = generator->bytesleft;
+            while (i) {
+                i /= 10;
+                size_tmp++;
+            }
+            size_fixed_each_part = FIXED_PART_SIZE + mime_type->data.mimetype.len + size_tmp;
+            for (i = 0; i < range_count; i++) {
+                size_tmp = *range_infos++;
+                if (size_tmp == 0)
+                    final_content_len++;
+                while (size_tmp) {
+                    size_tmp /= 10;
+                    final_content_len++;
+                }
+
+                size_tmp = *(range_infos - 1);
+                final_content_len += *range_infos;
+
+                size_tmp += *range_infos++ - 1;
+                if (size_tmp == 0)
+                    final_content_len++;
+                while (size_tmp) {
+                    size_tmp /= 10;
+                    final_content_len++;
+                }
+            }
+            final_content_len += sizeof("\r\n--") - 1 + BOUNDARY_SIZE + sizeof("--\r\n") - 1 + size_fixed_each_part * range_count -
+                                 (sizeof("\r\n") - 1);
+            generator->bytesleft = final_content_len;
+        }
+        do_send_file(generator, req, 206, "Partial Content", mime_type->data.mimetype, &h2o_mime_attributes_as_is,
+                     method_type == METHOD_IS_GET);
+        return 0;
+    }
+
+    /* return file */
+    do_send_file(generator, req, 200, "OK", mime_type->data.mimetype, &mime_type->data.attr, method_type == METHOD_IS_GET);
+    return 0;
+
+NotModified:
+    req->res.status = 304;
+    req->res.reason = "Not Modified";
+    add_headers_unconditional(generator, req);
+    h2o_send_inline(req, NULL, 0);
+Close:
+    do_close(&generator->super, req);
+    return 0;
+}
+
+static int on_req(h2o_handler_t *_self, h2o_req_t *req)
+{
+    h2o_file_handler_t *self = (void *)_self;
+    char *rpath;
+    size_t rpath_len, req_path_prefix;
+    struct st_h2o_sendfile_generator_t *generator = NULL;
+    int is_dir;
+
+    if (req->path_normalized.len < self->conf_path.len) {
+        h2o_iovec_t dest = h2o_uri_escape(&req->pool, self->conf_path.base, self->conf_path.len, "/");
+        if (req->query_at != SIZE_MAX)
+            dest = h2o_concat(&req->pool, dest, h2o_iovec_init(req->path.base + req->query_at, req->path.len - req->query_at));
+        h2o_send_redirect(req, 301, "Moved Permanently", dest.base, dest.len);
+        return 0;
+    }
+
+    /* build path (still unterminated at the end of the block) */
+    req_path_prefix = self->conf_path.len;
+    rpath = alloca(self->real_path.len + (req->path_normalized.len - req_path_prefix) + self->max_index_file_len + 1);
+    rpath_len = 0;
+    memcpy(rpath + rpath_len, self->real_path.base, self->real_path.len);
+    rpath_len += self->real_path.len;
+    memcpy(rpath + rpath_len, req->path_normalized.base + req_path_prefix, req->path_normalized.len - req_path_prefix);
+    rpath_len += req->path_normalized.len - req_path_prefix;
+
+    h2o_iovec_t resolved_path = req->path_normalized;
+
+    /* build generator (as well as terminating the rpath and its length upon success) */
+    if (rpath[rpath_len - 1] == '/') {
+        h2o_iovec_t *index_file;
+        for (index_file = self->index_files; index_file->base != NULL; ++index_file) {
+            memcpy(rpath + rpath_len, index_file->base, index_file->len);
+            rpath[rpath_len + index_file->len] = '\0';
+            if ((generator = create_generator(req, rpath, rpath_len + index_file->len, &is_dir, self->flags)) != NULL) {
+                rpath_len += index_file->len;
+                resolved_path = h2o_concat(&req->pool, req->path_normalized, *index_file);
+                goto Opened;
+            }
+            if (is_dir) {
+                /* note: apache redirects "path/" to "path/index.txt/" if index.txt is a dir */
+                h2o_iovec_t dest = h2o_concat(&req->pool, req->path_normalized, *index_file, h2o_iovec_init(H2O_STRLIT("/")));
+                dest = h2o_uri_escape(&req->pool, dest.base, dest.len, "/");
+                if (req->query_at != SIZE_MAX)
+                    dest =
+                        h2o_concat(&req->pool, dest, h2o_iovec_init(req->path.base + req->query_at, req->path.len - req->query_at));
+                h2o_send_redirect(req, 301, "Moved Permantently", dest.base, dest.len);
+                return 0;
+            }
+            if (errno != ENOENT)
+                break;
+        }
+        if (index_file->base == NULL && (self->flags & H2O_FILE_FLAG_DIR_LISTING) != 0) {
+            rpath[rpath_len] = '\0';
+            int is_get = 0;
+            if (h2o_memis(req->method.base, req->method.len, H2O_STRLIT("GET"))) {
+                is_get = 1;
+            } else if (h2o_memis(req->method.base, req->method.len, H2O_STRLIT("HEAD"))) {
+                /* ok */
+            } else {
+                send_method_not_allowed(req);
+                return 0;
+            }
+            if (send_dir_listing(req, rpath, rpath_len, is_get) == 0)
+                return 0;
+        }
+    } else {
+        rpath[rpath_len] = '\0';
+        if ((generator = create_generator(req, rpath, rpath_len, &is_dir, self->flags)) != NULL)
+            goto Opened;
+        if (is_dir) {
+            h2o_iovec_t dest = h2o_concat(&req->pool, req->path_normalized, h2o_iovec_init(H2O_STRLIT("/")));
+            dest = h2o_uri_escape(&req->pool, dest.base, dest.len, "/");
+            if (req->query_at != SIZE_MAX)
+                dest = h2o_concat(&req->pool, dest, h2o_iovec_init(req->path.base + req->query_at, req->path.len - req->query_at));
+            h2o_send_redirect(req, 301, "Moved Permanently", dest.base, dest.len);
+            return 0;
+        }
+    }
+    /* failed to open */
+
+    if (errno == ENFILE || errno == EMFILE) {
+        h2o_send_error_503(req, "Service Unavailable", "please try again later", 0);
+    } else {
+        if (h2o_mimemap_has_dynamic_type(self->mimemap) && try_dynamic_request(self, req, rpath, rpath_len) == 0)
+            return 0;
+        if (errno == ENOENT || errno == ENOTDIR) {
+            return -1;
+        } else {
+            h2o_send_error_403(req, "Access Forbidden", "access forbidden", 0);
+        }
+    }
+    return 0;
+
+Opened:
+    return serve_with_generator(generator, req, resolved_path, rpath, rpath_len,
+                                h2o_mimemap_get_type_by_extension(self->mimemap, h2o_get_filext(rpath, rpath_len)));
+}
+
+static void on_context_init(h2o_handler_t *_self, h2o_context_t *ctx)
+{
+    h2o_file_handler_t *self = (void *)_self;
+
+    h2o_mimemap_on_context_init(self->mimemap, ctx);
+}
+
+static void on_context_dispose(h2o_handler_t *_self, h2o_context_t *ctx)
+{
+    h2o_file_handler_t *self = (void *)_self;
+
+    h2o_mimemap_on_context_dispose(self->mimemap, ctx);
+}
+
+static void on_dispose(h2o_handler_t *_self)
+{
+    h2o_file_handler_t *self = (void *)_self;
+    size_t i;
+
+    free(self->conf_path.base);
+    free(self->real_path.base);
+    h2o_mem_release_shared(self->mimemap);
+    for (i = 0; self->index_files[i].base != NULL; ++i)
+        free(self->index_files[i].base);
+}
+
+h2o_file_handler_t *h2o_file_register(h2o_pathconf_t *pathconf, const char *real_path, const char **index_files,
+                                      h2o_mimemap_t *mimemap, int flags)
+{
+    h2o_file_handler_t *self;
+    size_t i;
+
+    if (index_files == NULL)
+        index_files = default_index_files;
+
+    /* allocate memory */
+    for (i = 0; index_files[i] != NULL; ++i)
+        ;
+    self =
+        (void *)h2o_create_handler(pathconf, offsetof(h2o_file_handler_t, index_files[0]) + sizeof(self->index_files[0]) * (i + 1));
+
+    /* setup callbacks */
+    self->super.on_context_init = on_context_init;
+    self->super.on_context_dispose = on_context_dispose;
+    self->super.dispose = on_dispose;
+    self->super.on_req = on_req;
+
+    /* setup attributes */
+    self->conf_path = h2o_strdup_slashed(NULL, pathconf->path.base, pathconf->path.len);
+    self->real_path = h2o_strdup_slashed(NULL, real_path, SIZE_MAX);
+    if (mimemap != NULL) {
+        h2o_mem_addref_shared(mimemap);
+        self->mimemap = mimemap;
+    } else {
+        self->mimemap = h2o_mimemap_create();
+    }
+    self->flags = flags;
+    for (i = 0; index_files[i] != NULL; ++i) {
+        self->index_files[i] = h2o_strdup(NULL, index_files[i], SIZE_MAX);
+        if (self->max_index_file_len < self->index_files[i].len)
+            self->max_index_file_len = self->index_files[i].len;
+    }
+
+    return self;
+}
+
+h2o_mimemap_t *h2o_file_get_mimemap(h2o_file_handler_t *handler)
+{
+    return handler->mimemap;
+}
+
+static void specific_handler_on_context_init(h2o_handler_t *_self, h2o_context_t *ctx)
+{
+    struct st_h2o_specific_file_handler_t *self = (void *)_self;
+
+    if (self->mime_type->type == H2O_MIMEMAP_TYPE_DYNAMIC)
+        h2o_context_init_pathconf_context(ctx, &self->mime_type->data.dynamic.pathconf);
+}
+
+static void specific_handler_on_context_dispose(h2o_handler_t *_self, h2o_context_t *ctx)
+{
+    struct st_h2o_specific_file_handler_t *self = (void *)_self;
+
+    if (self->mime_type->type == H2O_MIMEMAP_TYPE_DYNAMIC)
+        h2o_context_dispose_pathconf_context(ctx, &self->mime_type->data.dynamic.pathconf);
+}
+
+static void specific_handler_on_dispose(h2o_handler_t *_self)
+{
+    struct st_h2o_specific_file_handler_t *self = (void *)_self;
+
+    free(self->real_path.base);
+    h2o_mem_release_shared(self->mime_type);
+}
+
+static int specific_handler_on_req(h2o_handler_t *_self, h2o_req_t *req)
+{
+    struct st_h2o_specific_file_handler_t *self = (void *)_self;
+    struct st_h2o_sendfile_generator_t *generator;
+    int is_dir;
+
+    /* open file (or send error or return -1) */
+    if ((generator = create_generator(req, self->real_path.base, self->real_path.len, &is_dir, self->flags)) == NULL) {
+        if (is_dir) {
+            h2o_send_error_403(req, "Access Forbidden", "access forbidden", 0);
+        } else if (errno == ENOENT) {
+            return -1;
+        } else if (errno == ENFILE || errno == EMFILE) {
+            h2o_send_error_503(req, "Service Unavailable", "please try again later", 0);
+        } else {
+            h2o_send_error_403(req, "Access Forbidden", "access forbidden", 0);
+        }
+        return 0;
+    }
+
+    return serve_with_generator(generator, req, req->path_normalized, self->real_path.base, self->real_path.len, self->mime_type);
+}
+
+h2o_handler_t *h2o_file_register_file(h2o_pathconf_t *pathconf, const char *real_path, h2o_mimemap_type_t *mime_type, int flags)
+{
+    struct st_h2o_specific_file_handler_t *self = (void *)h2o_create_handler(pathconf, sizeof(*self));
+
+    self->super.on_context_init = specific_handler_on_context_init;
+    self->super.on_context_dispose = specific_handler_on_context_dispose;
+    self->super.dispose = specific_handler_on_dispose;
+    self->super.on_req = specific_handler_on_req;
+
+    self->real_path = h2o_strdup(NULL, real_path, SIZE_MAX);
+    h2o_mem_addref_shared(mime_type);
+    self->mime_type = mime_type;
+    self->flags = flags;
+
+    return &self->super;
+}
diff --git a/debian/vendor-h2o/lib/handler/file/_templates.c.h b/debian/vendor-h2o/lib/handler/file/_templates.c.h
new file mode 100644
index 0000000..11b7357
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/file/_templates.c.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * lib/file/templates.c.h is automatically generated from lib/file/_templates.h
+ * with command:
+ *   picotemplate.pl --conf=misc/picotemplate-conf.pl lib/file/_templates.c.h
+ */
+
+#include <limits.h>
+
+static int cmpstrptr(const void *_x, const void *_y)
+{
+    const char *x = *(const char **)_x;
+    const char *y = *(const char **)_y;
+    return strcmp(x, y);
+}
+
+#if !defined(NAME_MAX) || defined(__linux__)
+/* readdir(3) is known to be thread-safe on Linux and should be thread-safe on a platform that does not have a predefined value for
+   NAME_MAX */
+#define FOREACH_DIRENT(dp, dent)                                                                                                   \
+    struct dirent *dent;                                                                                                           \
+    while ((dent = readdir(dp)) != NULL)
+#else
+#define FOREACH_DIRENT(dp, dent)                                                                                                   \
+    struct {                                                                                                                       \
+        struct dirent d;                                                                                                           \
+        char s[NAME_MAX + 1];                                                                                                      \
+    } dent_;                                                                                                                       \
+    struct dirent *dentp, *dent = &dent_.d;                                                                                        \
+    int ret;                                                                                                                       \
+    while ((ret = readdir_r(dp, dent, &dentp)) == 0 && dentp != NULL)
+#endif /* FOREACH_DIRENT */
+
+static h2o_buffer_t *build_dir_listing_html(h2o_mem_pool_t *pool, h2o_iovec_t path_normalized, DIR* dp)
+{
+    H2O_VECTOR(char *) files = {NULL};
+
+    { /* build list of files */
+        FOREACH_DIRENT(dp, dent)
+        {
+            if (strcmp(dent->d_name, ".") == 0 || strcmp(dent->d_name, "..") == 0)
+                continue;
+            h2o_vector_reserve(pool, &files, files.size + 1);
+            files.entries[files.size++] = h2o_strdup(pool, dent->d_name, SIZE_MAX).base;
+        }
+        if (files.size > 1)
+            qsort(files.entries, files.size, sizeof(files.entries[0]), cmpstrptr);
+    }
+
+    h2o_buffer_t *_;
+    h2o_iovec_t path_normalized_escaped = h2o_htmlescape(pool, path_normalized.base, path_normalized.len);
+
+    h2o_buffer_init(&_, &h2o_socket_buffer_prototype);
+
+?<!DOCTYPE html>
+?<TITLE>Index of <?= path_normalized_escaped ?></TITLE>
+?<H2>Index of <?= path_normalized_escaped ?></H2>
+?<UL>
+?<LI><A HREF="..">Parent Directory</A>
+
+    size_t i;
+    for (i = 0; i != files.size; ++i) {
+        h2o_iovec_t link_escaped = h2o_uri_escape(pool, files.entries[i], strlen(files.entries[i]), NULL);
+        link_escaped = h2o_htmlescape(pool, link_escaped.base, link_escaped.len);
+        h2o_iovec_t label_escaped = h2o_htmlescape(pool, files.entries[i], strlen(files.entries[i]));
+?<LI><A HREF="<?= link_escaped ?>"><?= label_escaped ?></A>
+    }
+?</UL>
+
+    return _;
+}
diff --git a/debian/vendor-h2o/lib/handler/file/templates.c.h b/debian/vendor-h2o/lib/handler/file/templates.c.h
new file mode 100644
index 0000000..24c12da
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/file/templates.c.h
@@ -0,0 +1,171 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * lib/file/templates.c.h is automatically generated from lib/file/_templates.h
+ * with command:
+ *   picotemplate.pl --conf=misc/picotemplate-conf.pl lib/file/_templates.c.h
+ */
+
+#include <limits.h>
+
+static int cmpstrptr(const void *_x, const void *_y)
+{
+    const char *x = *(const char **)_x;
+    const char *y = *(const char **)_y;
+    return strcmp(x, y);
+}
+
+#if !defined(NAME_MAX) || defined(__linux__)
+/* readdir(3) is known to be thread-safe on Linux and should be thread-safe on a platform that does not have a predefined value for
+   NAME_MAX */
+#define FOREACH_DIRENT(dp, dent)                                                                                                   \
+    struct dirent *dent;                                                                                                           \
+    while ((dent = readdir(dp)) != NULL)
+#else
+#define FOREACH_DIRENT(dp, dent)                                                                                                   \
+    struct {                                                                                                                       \
+        struct dirent d;                                                                                                           \
+        char s[NAME_MAX + 1];                                                                                                      \
+    } dent_;                                                                                                                       \
+    struct dirent *dentp, *dent = &dent_.d;                                                                                        \
+    int ret;                                                                                                                       \
+    while ((ret = readdir_r(dp, dent, &dentp)) == 0 && dentp != NULL)
+#endif /* FOREACH_DIRENT */
+
+static h2o_buffer_t *build_dir_listing_html(h2o_mem_pool_t *pool, h2o_iovec_t path_normalized, DIR *dp)
+{
+    H2O_VECTOR(char *) files = {NULL};
+
+    { /* build list of files */
+        FOREACH_DIRENT(dp, dent)
+        {
+            if (strcmp(dent->d_name, ".") == 0 || strcmp(dent->d_name, "..") == 0)
+                continue;
+            h2o_vector_reserve(pool, &files, files.size + 1);
+            files.entries[files.size++] = h2o_strdup(pool, dent->d_name, SIZE_MAX).base;
+        }
+        if (files.size > 1)
+            qsort(files.entries, files.size, sizeof(files.entries[0]), cmpstrptr);
+    }
+
+    h2o_buffer_t *_;
+    h2o_iovec_t path_normalized_escaped = h2o_htmlescape(pool, path_normalized.base, path_normalized.len);
+
+    h2o_buffer_init(&_, &h2o_socket_buffer_prototype);
+
+    {
+        h2o_iovec_t _s = (h2o_iovec_init(H2O_STRLIT("<!DOCTYPE html>\n<TITLE>Index of ")));
+        if (_s.len != 0 && _s.base[_s.len - 1] == '\n')
+            --_s.len;
+        h2o_buffer_reserve(&_, _s.len);
+        memcpy(_->bytes + _->size, _s.base, _s.len);
+        _->size += _s.len;
+    }
+    {
+        h2o_iovec_t _s = (path_normalized_escaped);
+        if (_s.len != 0 && _s.base[_s.len - 1] == '\n')
+            --_s.len;
+        h2o_buffer_reserve(&_, _s.len);
+        memcpy(_->bytes + _->size, _s.base, _s.len);
+        _->size += _s.len;
+    }
+    {
+        h2o_iovec_t _s = (h2o_iovec_init(H2O_STRLIT("</TITLE>\n<H2>Index of ")));
+        if (_s.len != 0 && _s.base[_s.len - 1] == '\n')
+            --_s.len;
+        h2o_buffer_reserve(&_, _s.len);
+        memcpy(_->bytes + _->size, _s.base, _s.len);
+        _->size += _s.len;
+    }
+    {
+        h2o_iovec_t _s = (path_normalized_escaped);
+        if (_s.len != 0 && _s.base[_s.len - 1] == '\n')
+            --_s.len;
+        h2o_buffer_reserve(&_, _s.len);
+        memcpy(_->bytes + _->size, _s.base, _s.len);
+        _->size += _s.len;
+    }
+    {
+        h2o_iovec_t _s = (h2o_iovec_init(H2O_STRLIT("</H2>\n<UL>\n<LI><A HREF=\"..\">Parent Directory</A>\n")));
+        if (_s.len != 0 && _s.base[_s.len - 1] == '\n')
+            --_s.len;
+        h2o_buffer_reserve(&_, _s.len);
+        memcpy(_->bytes + _->size, _s.base, _s.len);
+        _->size += _s.len;
+    }
+
+    size_t i;
+    for (i = 0; i != files.size; ++i) {
+        h2o_iovec_t link_escaped = h2o_uri_escape(pool, files.entries[i], strlen(files.entries[i]), NULL);
+        link_escaped = h2o_htmlescape(pool, link_escaped.base, link_escaped.len);
+        h2o_iovec_t label_escaped = h2o_htmlescape(pool, files.entries[i], strlen(files.entries[i]));
+        {
+            h2o_iovec_t _s = (h2o_iovec_init(H2O_STRLIT("<LI><A HREF=\"")));
+            if (_s.len != 0 && _s.base[_s.len - 1] == '\n')
+                --_s.len;
+            h2o_buffer_reserve(&_, _s.len);
+            memcpy(_->bytes + _->size, _s.base, _s.len);
+            _->size += _s.len;
+        }
+        {
+            h2o_iovec_t _s = (link_escaped);
+            if (_s.len != 0 && _s.base[_s.len - 1] == '\n')
+                --_s.len;
+            h2o_buffer_reserve(&_, _s.len);
+            memcpy(_->bytes + _->size, _s.base, _s.len);
+            _->size += _s.len;
+        }
+        {
+            h2o_iovec_t _s = (h2o_iovec_init(H2O_STRLIT("\">")));
+            if (_s.len != 0 && _s.base[_s.len - 1] == '\n')
+                --_s.len;
+            h2o_buffer_reserve(&_, _s.len);
+            memcpy(_->bytes + _->size, _s.base, _s.len);
+            _->size += _s.len;
+        }
+        {
+            h2o_iovec_t _s = (label_escaped);
+            if (_s.len != 0 && _s.base[_s.len - 1] == '\n')
+                --_s.len;
+            h2o_buffer_reserve(&_, _s.len);
+            memcpy(_->bytes + _->size, _s.base, _s.len);
+            _->size += _s.len;
+        }
+        {
+            h2o_iovec_t _s = (h2o_iovec_init(H2O_STRLIT("</A>\n")));
+            if (_s.len != 0 && _s.base[_s.len - 1] == '\n')
+                --_s.len;
+            h2o_buffer_reserve(&_, _s.len);
+            memcpy(_->bytes + _->size, _s.base, _s.len);
+            _->size += _s.len;
+        }
+    }
+    {
+        h2o_iovec_t _s = (h2o_iovec_init(H2O_STRLIT("</UL>\n")));
+        if (_s.len != 0 && _s.base[_s.len - 1] == '\n')
+            --_s.len;
+        h2o_buffer_reserve(&_, _s.len);
+        memcpy(_->bytes + _->size, _s.base, _s.len);
+        _->size += _s.len;
+    }
+
+    return _;
+}
diff --git a/debian/vendor-h2o/lib/handler/headers.c b/debian/vendor-h2o/lib/handler/headers.c
new file mode 100644
index 0000000..973976b
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/headers.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o.h"
+
+struct st_headers_filter_t {
+    h2o_filter_t super;
+    h2o_headers_command_t *cmds;
+};
+
+static void on_setup_ostream(h2o_filter_t *_self, h2o_req_t *req, h2o_ostream_t **slot)
+{
+    struct st_headers_filter_t *self = (void *)_self;
+    h2o_headers_command_t *cmd;
+
+    for (cmd = self->cmds; cmd->cmd != H2O_HEADERS_CMD_NULL; ++cmd)
+        h2o_rewrite_headers(&req->pool, &req->res.headers, cmd);
+
+    h2o_setup_next_ostream(req, slot);
+}
+
+void h2o_headers_register(h2o_pathconf_t *pathconf, h2o_headers_command_t *cmds)
+{
+    struct st_headers_filter_t *self = (void *)h2o_create_filter(pathconf, sizeof(*self));
+
+    self->super.on_setup_ostream = on_setup_ostream;
+    self->cmds = cmds;
+}
+
+int h2o_headers_is_prohibited_name(const h2o_token_t *token)
+{
+    /* prohibit connection-specific headers */
+    if (token == H2O_TOKEN_CONNECTION || token == H2O_TOKEN_CONTENT_LENGTH || token == H2O_TOKEN_TRANSFER_ENCODING)
+        return 1;
+    /* prohibit headers added at protocol layer */
+    if (token == H2O_TOKEN_DATE || token == H2O_TOKEN_SERVER)
+        return 1;
+    /* all others are permitted */
+    return 0;
+}
diff --git a/debian/vendor-h2o/lib/handler/headers_util.c b/debian/vendor-h2o/lib/handler/headers_util.c
new file mode 100644
index 0000000..5ecacfa
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/headers_util.c
@@ -0,0 +1,114 @@
+#include "h2o.h"
+
+static h2o_header_t *find_header(h2o_headers_t *headers, h2o_headers_command_t *cmd)
+{
+    size_t index;
+
+    if (h2o_iovec_is_token(cmd->name)) {
+        index = h2o_find_header(headers, (void *)cmd->name, SIZE_MAX);
+    } else {
+        index = h2o_find_header_by_str(headers, cmd->name->base, cmd->name->len, SIZE_MAX);
+    }
+    if (index == SIZE_MAX)
+        return NULL;
+    return headers->entries + index;
+}
+
+static void remove_header(h2o_headers_t *headers, h2o_headers_command_t *cmd)
+{
+    size_t src, dst = 0;
+
+    for (src = 0; src != headers->size; ++src) {
+        if (h2o_iovec_is_token(cmd->name)) {
+            if (headers->entries[src].name == cmd->name)
+                continue;
+        } else {
+            if (h2o_memis(headers->entries[src].name->base, headers->entries[src].name->len, cmd->name->base, cmd->name->len))
+                continue;
+        }
+        /* not matched */
+        if (dst != src)
+            headers->entries[dst] = headers->entries[src];
+        ++dst;
+    }
+    headers->size = dst;
+}
+
+void h2o_headers_append_command(h2o_headers_command_t **cmds, int cmd, h2o_iovec_t *name, h2o_iovec_t value)
+{
+    h2o_headers_command_t *new_cmds;
+    size_t cnt;
+
+    if (*cmds != NULL) {
+        for (cnt = 0; (*cmds)[cnt].cmd != H2O_HEADERS_CMD_NULL; ++cnt)
+            ;
+    } else {
+        cnt = 0;
+    }
+
+    new_cmds = h2o_mem_alloc_shared(NULL, (cnt + 2) * sizeof(*new_cmds), NULL);
+    if (*cmds != NULL)
+        memcpy(new_cmds, *cmds, cnt * sizeof(*new_cmds));
+    new_cmds[cnt] = (h2o_headers_command_t){cmd, name, value};
+    new_cmds[cnt + 1] = (h2o_headers_command_t){H2O_HEADERS_CMD_NULL};
+
+    if (*cmds != NULL)
+        h2o_mem_release_shared(*cmds);
+    *cmds = new_cmds;
+}
+
+void h2o_rewrite_headers(h2o_mem_pool_t *pool, h2o_headers_t *headers, h2o_headers_command_t *cmd)
+{
+    h2o_header_t *target;
+
+    switch (cmd->cmd) {
+    case H2O_HEADERS_CMD_ADD:
+        goto AddHeader;
+    case H2O_HEADERS_CMD_APPEND:
+        if ((target = find_header(headers, cmd)) == NULL)
+            goto AddHeader;
+        goto AppendToken;
+    case H2O_HEADERS_CMD_MERGE:
+        if ((target = find_header(headers, cmd)) == NULL)
+            goto AddHeader;
+        if (h2o_contains_token(target->value.base, target->value.len, cmd->value.base, cmd->value.len, ','))
+            return;
+        goto AppendToken;
+    case H2O_HEADERS_CMD_SET:
+        remove_header(headers, cmd);
+        goto AddHeader;
+    case H2O_HEADERS_CMD_SETIFEMPTY:
+        if (find_header(headers, cmd) != NULL)
+            return;
+        goto AddHeader;
+    case H2O_HEADERS_CMD_UNSET:
+        remove_header(headers, cmd);
+        return;
+    }
+
+    assert(!"FIXME");
+    return;
+
+AddHeader:
+    if (h2o_iovec_is_token(cmd->name)) {
+        h2o_add_header(pool, headers, (void *)cmd->name, NULL, cmd->value.base, cmd->value.len);
+    } else {
+        h2o_add_header_by_str(pool, headers, cmd->name->base, cmd->name->len, 0, NULL, cmd->value.base, cmd->value.len);
+    }
+    return;
+
+AppendToken:
+    if (target->value.len != 0) {
+        h2o_iovec_t v;
+        v.len = target->value.len + 2 + cmd->value.len;
+        v.base = h2o_mem_alloc_pool(pool, v.len);
+        memcpy(v.base, target->value.base, target->value.len);
+        v.base[target->value.len] = ',';
+        v.base[target->value.len + 1] = ' ';
+        memcpy(v.base + target->value.len + 2, cmd->value.base, cmd->value.len);
+        target->value = v;
+    } else {
+        target->value = cmd->value;
+    }
+    return;
+}
diff --git a/debian/vendor-h2o/lib/handler/http2_debug_state.c b/debian/vendor-h2o/lib/handler/http2_debug_state.c
new file mode 100644
index 0000000..0aa0bd1
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/http2_debug_state.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2016 DeNA Co., Ltd., Ichito Nagata
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <inttypes.h>
+#include "h2o.h"
+
+struct st_h2o_http2_debug_state_handler_t {
+    h2o_handler_t super;
+    int hpack_enabled;
+};
+
+static int on_req(h2o_handler_t *_self, h2o_req_t *req)
+{
+    struct st_h2o_http2_debug_state_handler_t *self = (void *)_self;
+
+    static h2o_generator_t generator = {NULL, NULL};
+
+    if (req->conn->callbacks->get_debug_state == NULL) {
+        return -1;
+    }
+
+    h2o_http2_debug_state_t *debug_state = req->conn->callbacks->get_debug_state(req, self->hpack_enabled);
+
+    // stringify these variables to embed in Debug Header
+    h2o_iovec_t conn_flow_in, conn_flow_out;
+    conn_flow_in.base = h2o_mem_alloc_pool(&req->pool, sizeof(H2O_INT64_LONGEST_STR));
+    conn_flow_in.len = sprintf(conn_flow_in.base, "%zd", debug_state->conn_flow_in);
+    conn_flow_out.base = h2o_mem_alloc_pool(&req->pool, sizeof(H2O_INT64_LONGEST_STR));
+    conn_flow_out.len = sprintf(conn_flow_out.base, "%zd", debug_state->conn_flow_out);
+
+    req->res.status = 200;
+    h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CONTENT_TYPE, NULL, H2O_STRLIT("application/json; charset=utf-8"));
+    h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CACHE_CONTROL, NULL, H2O_STRLIT("no-cache, no-store"));
+    h2o_add_header_by_str(&req->pool, &req->res.headers, H2O_STRLIT("conn-flow-in"), 0, NULL, conn_flow_in.base, conn_flow_in.len);
+    h2o_add_header_by_str(&req->pool, &req->res.headers, H2O_STRLIT("conn-flow-out"), 0, NULL, conn_flow_out.base,
+                          conn_flow_out.len);
+
+    h2o_start_response(req, &generator);
+    h2o_send(req, debug_state->json.entries,
+             h2o_memis(req->input.method.base, req->input.method.len, H2O_STRLIT("HEAD")) ? 0 : debug_state->json.size,
+             H2O_SEND_STATE_FINAL);
+    return 0;
+}
+
+void h2o_http2_debug_state_register(h2o_hostconf_t *conf, int hpack_enabled)
+{
+    h2o_pathconf_t *pathconf = h2o_config_register_path(conf, "/.well-known/h2/state", 0);
+    struct st_h2o_http2_debug_state_handler_t *self = (void *)h2o_create_handler(pathconf, sizeof(*self));
+    self->super.on_req = on_req;
+    self->hpack_enabled = hpack_enabled;
+}
diff --git a/debian/vendor-h2o/lib/handler/mimemap.c b/debian/vendor-h2o/lib/handler/mimemap.c
new file mode 100644
index 0000000..764362d
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/mimemap.c
@@ -0,0 +1,419 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include "khash.h"
+#include "h2o.h"
+
+KHASH_MAP_INIT_STR(extmap, h2o_mimemap_type_t *)
+
+static inline khint_t hash_mimemap_type(h2o_mimemap_type_t *mimetype)
+{
+    khint_t h = 0;
+    size_t i;
+    for (i = 0; i != mimetype->data.mimetype.len; ++i)
+        h = (h << 5) - h + (khint_t)mimetype->data.mimetype.base[i];
+    return h;
+}
+
+static inline int mimemap_type_equals(h2o_mimemap_type_t *x, h2o_mimemap_type_t *y)
+{
+    return h2o_memis(x->data.mimetype.base, x->data.mimetype.len, y->data.mimetype.base, y->data.mimetype.len);
+}
+
+KHASH_INIT(typeset, h2o_mimemap_type_t *, char, 0, hash_mimemap_type, mimemap_type_equals)
+
+h2o_mime_attributes_t h2o_mime_attributes_as_is;
+
+struct st_h2o_mimemap_t {
+    khash_t(extmap) * extmap;
+    khash_t(typeset) * typeset; /* refs point to the entries in extmap */
+    h2o_mimemap_type_t *default_type;
+    size_t num_dynamic;
+};
+
+static h2o_iovec_t dupref(const char *s)
+{
+    h2o_iovec_t ret;
+    ret.len = strlen(s);
+    ret.base = h2o_mem_alloc_shared(NULL, ret.len + 1, NULL);
+    memcpy(ret.base, s, ret.len + 1);
+    return ret;
+}
+
+static void on_dispose(void *_mimemap)
+{
+    h2o_mimemap_t *mimemap = _mimemap;
+    const char *ext;
+    h2o_mimemap_type_t *type;
+
+    kh_destroy(typeset, mimemap->typeset);
+    kh_foreach(mimemap->extmap, ext, type, {
+        h2o_mem_release_shared((char *)ext);
+        h2o_mem_release_shared(type);
+    });
+    kh_destroy(extmap, mimemap->extmap);
+    h2o_mem_release_shared(mimemap->default_type);
+}
+
+static void on_unlink(h2o_mimemap_t *mimemap, h2o_mimemap_type_t *type)
+{
+    switch (type->type) {
+    case H2O_MIMEMAP_TYPE_MIMETYPE:
+        break;
+    case H2O_MIMEMAP_TYPE_DYNAMIC:
+        --mimemap->num_dynamic;
+        break;
+    }
+}
+
+static void on_link(h2o_mimemap_t *mimemap, h2o_mimemap_type_t *type)
+{
+    switch (type->type) {
+    case H2O_MIMEMAP_TYPE_MIMETYPE:
+        break;
+    case H2O_MIMEMAP_TYPE_DYNAMIC:
+        ++mimemap->num_dynamic;
+        break;
+    }
+}
+
+static void rebuild_typeset(h2o_mimemap_t *mimemap)
+{
+    kh_clear(typeset, mimemap->typeset);
+
+    const char *ext;
+    h2o_mimemap_type_t *mime;
+    kh_foreach(mimemap->extmap, ext, mime, {
+        if (mime->type == H2O_MIMEMAP_TYPE_MIMETYPE) {
+            khiter_t iter = kh_get(typeset, mimemap->typeset, mime);
+            if (iter == kh_end(mimemap->typeset)) {
+                int r;
+                kh_put(typeset, mimemap->typeset, mime, &r);
+            }
+        }
+    });
+}
+
+static h2o_mimemap_type_t *create_extension_type(const char *mime, h2o_mime_attributes_t *attr)
+{
+    h2o_mimemap_type_t *type = h2o_mem_alloc_shared(NULL, sizeof(*type) + strlen(mime) + 1, NULL);
+    size_t i;
+
+    memset(type, 0, sizeof(*type));
+
+    type->type = H2O_MIMEMAP_TYPE_MIMETYPE;
+
+    /* normalize-copy type->data.mimetype */
+    type->data.mimetype.base = (char *)type + sizeof(*type);
+    for (i = 0; mime[i] != '\0' && mime[i] != ';'; ++i)
+        type->data.mimetype.base[i] = h2o_tolower(mime[i]);
+    for (; mime[i] != '\0'; ++i)
+        type->data.mimetype.base[i] = mime[i];
+    type->data.mimetype.base[i] = '\0';
+    type->data.mimetype.len = i;
+
+    if (attr != NULL) {
+        type->data.attr = *attr;
+    } else {
+        h2o_mimemap_get_default_attributes(mime, &type->data.attr);
+    }
+
+    return type;
+}
+
+static void dispose_dynamic_type(h2o_mimemap_type_t *type)
+{
+    h2o_config_dispose_pathconf(&type->data.dynamic.pathconf);
+}
+
+static h2o_mimemap_type_t *create_dynamic_type(h2o_globalconf_t *globalconf, h2o_mimemap_t *mimemap)
+{
+    h2o_mimemap_type_t *type = h2o_mem_alloc_shared(NULL, sizeof(*type), (void (*)(void *))dispose_dynamic_type);
+
+    type->type = H2O_MIMEMAP_TYPE_DYNAMIC;
+    memset(&type->data.dynamic, 0, sizeof(type->data.dynamic));
+    h2o_config_init_pathconf(&type->data.dynamic.pathconf, globalconf, NULL, mimemap);
+
+    return type;
+}
+
+h2o_mimemap_t *h2o_mimemap_create()
+{
+    h2o_mimemap_t *mimemap = h2o_mem_alloc_shared(NULL, sizeof(*mimemap), on_dispose);
+
+    mimemap->extmap = kh_init(extmap);
+    mimemap->typeset = kh_init(typeset);
+    mimemap->default_type = create_extension_type("application/octet-stream", NULL);
+    mimemap->num_dynamic = 0;
+    on_link(mimemap, mimemap->default_type);
+
+    { /* setup the tiny default */
+        static const char *default_types[] = {
+#define MIMEMAP(ext, mime) ext, mime,
+#include "mimemap/defaults.c.h"
+#undef MIMEMAP
+            NULL};
+        const char **p;
+        for (p = default_types; *p != NULL; p += 2)
+            h2o_mimemap_define_mimetype(mimemap, p[0], p[1], NULL);
+    }
+    rebuild_typeset(mimemap);
+
+    return mimemap;
+}
+
+h2o_mimemap_t *h2o_mimemap_clone(h2o_mimemap_t *src)
+{
+    h2o_mimemap_t *dst = h2o_mem_alloc_shared(NULL, sizeof(*dst), on_dispose);
+    const char *ext;
+    h2o_mimemap_type_t *type;
+
+    dst->extmap = kh_init(extmap);
+    dst->typeset = kh_init(typeset);
+    kh_foreach(src->extmap, ext, type, {
+        int r;
+        khiter_t iter = kh_put(extmap, dst->extmap, ext, &r);
+        kh_val(dst->extmap, iter) = type;
+        h2o_mem_addref_shared((char *)ext);
+        h2o_mem_addref_shared(type);
+        on_link(dst, type);
+    });
+    dst->default_type = src->default_type;
+    h2o_mem_addref_shared(dst->default_type);
+    on_link(dst, dst->default_type);
+    rebuild_typeset(dst);
+
+    return dst;
+}
+
+void h2o_mimemap_on_context_init(h2o_mimemap_t *mimemap, h2o_context_t *ctx)
+{
+    const char *ext;
+    h2o_mimemap_type_t *type;
+
+    kh_foreach(mimemap->extmap, ext, type, {
+        switch (type->type) {
+        case H2O_MIMEMAP_TYPE_DYNAMIC:
+            h2o_context_init_pathconf_context(ctx, &type->data.dynamic.pathconf);
+            break;
+        case H2O_MIMEMAP_TYPE_MIMETYPE:
+            break;
+        }
+    });
+}
+
+void h2o_mimemap_on_context_dispose(h2o_mimemap_t *mimemap, h2o_context_t *ctx)
+{
+    const char *ext;
+    h2o_mimemap_type_t *type;
+
+    kh_foreach(mimemap->extmap, ext, type, {
+        switch (type->type) {
+        case H2O_MIMEMAP_TYPE_DYNAMIC:
+            h2o_context_dispose_pathconf_context(ctx, &type->data.dynamic.pathconf);
+            break;
+        case H2O_MIMEMAP_TYPE_MIMETYPE:
+            break;
+        }
+    });
+}
+
+int h2o_mimemap_has_dynamic_type(h2o_mimemap_t *mimemap)
+{
+    return mimemap->num_dynamic != 0;
+}
+
+void h2o_mimemap_set_default_type(h2o_mimemap_t *mimemap, const char *mime, h2o_mime_attributes_t *attr)
+{
+    h2o_mimemap_type_t *new_type;
+
+    /* obtain or create new type */
+    if ((new_type = h2o_mimemap_get_type_by_mimetype(mimemap, h2o_iovec_init(mime, strlen(mime)), 1)) != NULL &&
+        (attr == NULL || memcmp(&new_type->data.attr, attr, sizeof(*attr)) == 0)) {
+        h2o_mem_addref_shared(new_type);
+    } else {
+        new_type = create_extension_type(mime, attr);
+    }
+
+    /* unlink the old one */
+    on_unlink(mimemap, mimemap->default_type);
+    h2o_mem_release_shared(mimemap->default_type);
+
+    /* update */
+    mimemap->default_type = new_type;
+    on_link(mimemap, new_type);
+    rebuild_typeset(mimemap);
+}
+
+static void set_type(h2o_mimemap_t *mimemap, const char *ext, h2o_mimemap_type_t *type)
+{
+    /* obtain key, and remove the old value */
+    khiter_t iter = kh_get(extmap, mimemap->extmap, ext);
+    if (iter != kh_end(mimemap->extmap)) {
+        h2o_mimemap_type_t *oldtype = kh_val(mimemap->extmap, iter);
+        on_unlink(mimemap, oldtype);
+        h2o_mem_release_shared(oldtype);
+    } else {
+        int ret;
+        iter = kh_put(extmap, mimemap->extmap, dupref(ext).base, &ret);
+        assert(iter != kh_end(mimemap->extmap));
+    }
+
+    /* update */
+    h2o_mem_addref_shared(type);
+    kh_val(mimemap->extmap, iter) = type;
+    on_link(mimemap, type);
+    rebuild_typeset(mimemap);
+}
+
+void h2o_mimemap_define_mimetype(h2o_mimemap_t *mimemap, const char *ext, const char *mime, h2o_mime_attributes_t *attr)
+{
+    h2o_mimemap_type_t *new_type;
+
+    if ((new_type = h2o_mimemap_get_type_by_mimetype(mimemap, h2o_iovec_init(mime, strlen(mime)), 1)) != NULL &&
+        (attr == NULL || memcmp(&new_type->data.attr, attr, sizeof(*attr)) == 0)) {
+        h2o_mem_addref_shared(new_type);
+    } else {
+        new_type = create_extension_type(mime, attr);
+    }
+    set_type(mimemap, ext, new_type);
+    h2o_mem_release_shared(new_type);
+}
+
+h2o_mimemap_type_t *h2o_mimemap_define_dynamic(h2o_mimemap_t *mimemap, const char **exts, h2o_globalconf_t *globalconf)
+{
+    /* FIXME: fix memory leak introduced by this a cyclic link (mimemap -> new_type -> mimemap)
+     * note also that we may want to update the reference from the dynamic type to the mimemap as we clone the mimemap,
+     * but doing so naively would cause unnecessary copies of fastcgi.spawns... */
+    h2o_mimemap_type_t *new_type = create_dynamic_type(globalconf, mimemap);
+    size_t i;
+
+    for (i = 0; exts[i] != NULL; ++i)
+        set_type(mimemap, exts[i], new_type);
+    h2o_mem_release_shared(new_type);
+    return new_type;
+}
+
+void h2o_mimemap_remove_type(h2o_mimemap_t *mimemap, const char *ext)
+{
+    khiter_t iter = kh_get(extmap, mimemap->extmap, ext);
+    if (iter != kh_end(mimemap->extmap)) {
+        const char *key = kh_key(mimemap->extmap, iter);
+        h2o_mimemap_type_t *type = kh_val(mimemap->extmap, iter);
+        on_unlink(mimemap, type);
+        h2o_mem_release_shared(type);
+        kh_del(extmap, mimemap->extmap, iter);
+        h2o_mem_release_shared((char *)key);
+        rebuild_typeset(mimemap);
+    }
+}
+
+void h2o_mimemap_clear_types(h2o_mimemap_t *mimemap)
+{
+    khiter_t iter;
+
+    for (iter = kh_begin(mimemap->extmap); iter != kh_end(mimemap->extmap); ++iter) {
+        if (!kh_exist(mimemap->extmap, iter)) continue;
+        const char *key = kh_key(mimemap->extmap, iter);
+        h2o_mimemap_type_t *type = kh_val(mimemap->extmap, iter);
+        on_unlink(mimemap, type);
+        h2o_mem_release_shared(type);
+        kh_del(extmap, mimemap->extmap, iter);
+        h2o_mem_release_shared((char *)key);
+    }
+    rebuild_typeset(mimemap);
+}
+
+h2o_mimemap_type_t *h2o_mimemap_get_default_type(h2o_mimemap_t *mimemap)
+{
+    return mimemap->default_type;
+}
+
+h2o_mimemap_type_t *h2o_mimemap_get_type_by_extension(h2o_mimemap_t *mimemap, h2o_iovec_t ext)
+{
+    char lcbuf[256];
+
+    if (0 < ext.len && ext.len < sizeof(lcbuf)) {
+        memcpy(lcbuf, ext.base, ext.len);
+        h2o_strtolower(lcbuf, ext.len);
+        lcbuf[ext.len] = '\0';
+        khiter_t iter = kh_get(extmap, mimemap->extmap, lcbuf);
+        if (iter != kh_end(mimemap->extmap))
+            return kh_val(mimemap->extmap, iter);
+    }
+    return mimemap->default_type;
+}
+
+h2o_mimemap_type_t *h2o_mimemap_get_type_by_mimetype(h2o_mimemap_t *mimemap, h2o_iovec_t mime, int exact_match_only)
+{
+    h2o_mimemap_type_t key = {H2O_MIMEMAP_TYPE_MIMETYPE};
+    khiter_t iter;
+    size_t type_end_at;
+
+    /* exact match */
+    key.data.mimetype = mime;
+    if ((iter = kh_get(typeset, mimemap->typeset, &key)) != kh_end(mimemap->typeset))
+        return kh_key(mimemap->typeset, iter);
+
+    if (!exact_match_only) {
+        /* determine the end of the type */
+        for (type_end_at = 0; type_end_at != mime.len; ++type_end_at)
+            if (mime.base[type_end_at] == ';' || mime.base[type_end_at] == ' ')
+                goto HasAttributes;
+    }
+    return NULL;
+
+HasAttributes:
+    /* perform search without attributes */
+    key.data.mimetype.len = type_end_at;
+    if ((iter = kh_get(typeset, mimemap->typeset, &key)) != kh_end(mimemap->typeset))
+        return kh_key(mimemap->typeset, iter);
+
+    return NULL;
+}
+
+void h2o_mimemap_get_default_attributes(const char *_mime, h2o_mime_attributes_t *attr)
+{
+    char *mime = alloca(strlen(_mime) + 1);
+    strcpy(mime, _mime);
+
+    const char *type_end_at;
+
+    if ((type_end_at = strchr(mime, ';')) == NULL)
+        type_end_at = mime + strlen(mime);
+
+    *attr = (h2o_mime_attributes_t){0};
+
+    if (h2o_memis(mime, type_end_at - mime, H2O_STRLIT("text/css")) ||
+        h2o_memis(mime, type_end_at - mime, H2O_STRLIT("application/ecmascript")) ||
+        h2o_memis(mime, type_end_at - mime, H2O_STRLIT("application/javascript")) ||
+        h2o_memis(mime, type_end_at - mime, H2O_STRLIT("text/ecmascript")) ||
+        h2o_memis(mime, type_end_at - mime, H2O_STRLIT("text/javascript"))) {
+        attr->is_compressible = 1;
+        attr->priority = H2O_MIME_ATTRIBUTE_PRIORITY_HIGHEST;
+    } else if (h2o_memis(mime, type_end_at - mime, H2O_STRLIT("application/json")) || strncmp(mime, "text/", 5) == 0 ||
+               h2o_strstr(mime, type_end_at - mime, H2O_STRLIT("+xml")) != SIZE_MAX) {
+        attr->is_compressible = 1;
+    }
+}
diff --git a/debian/vendor-h2o/lib/handler/mimemap/defaults.c.h b/debian/vendor-h2o/lib/handler/mimemap/defaults.c.h
new file mode 100644
index 0000000..a395e0c
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/mimemap/defaults.c.h
@@ -0,0 +1,109 @@
+MIMEMAP("3gp", "video/3gpp")
+MIMEMAP("3gpp", "video/3gpp")
+MIMEMAP("7z", "application/x-7z-compressed")
+MIMEMAP("ai", "application/postscript")
+MIMEMAP("apng", "image/apng")
+MIMEMAP("asf", "video/x-ms-asf")
+MIMEMAP("asx", "video/x-ms-asf")
+MIMEMAP("atom", "application/atom+xml")
+MIMEMAP("avi", "video/x-msvideo")
+MIMEMAP("bin", "application/octet-stream")
+MIMEMAP("bmp", "image/x-ms-bmp")
+MIMEMAP("cco", "application/x-cocoa")
+MIMEMAP("crt", "application/x-x509-ca-cert")
+MIMEMAP("css", "text/css")
+MIMEMAP("csv", "text/csv")
+MIMEMAP("deb", "application/octet-stream")
+MIMEMAP("der", "application/x-x509-ca-cert")
+MIMEMAP("dll", "application/octet-stream")
+MIMEMAP("dmg", "application/octet-stream")
+MIMEMAP("doc", "application/msword")
+MIMEMAP("docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document")
+MIMEMAP("ear", "application/java-archive")
+MIMEMAP("eot", "application/vnd.ms-fontobject")
+MIMEMAP("eps", "application/postscript")
+MIMEMAP("exe", "application/octet-stream")
+MIMEMAP("flv", "video/x-flv")
+MIMEMAP("gif", "image/gif")
+MIMEMAP("hqx", "application/mac-binhex40")
+MIMEMAP("htc", "text/x-component")
+MIMEMAP("htm", "text/html")
+MIMEMAP("html", "text/html")
+MIMEMAP("ico", "image/x-icon")
+MIMEMAP("img", "application/octet-stream")
+MIMEMAP("iso", "application/octet-stream")
+MIMEMAP("jad", "text/vnd.sun.j2me.app-descriptor")
+MIMEMAP("jar", "application/java-archive")
+MIMEMAP("jardiff", "application/x-java-archive-diff")
+MIMEMAP("jng", "image/x-jng")
+MIMEMAP("jnlp", "application/x-java-jnlp-file")
+MIMEMAP("jpeg", "image/jpeg")
+MIMEMAP("jpg", "image/jpeg")
+MIMEMAP("jxr", "image/jxr")
+MIMEMAP("js", "application/javascript")
+MIMEMAP("json", "application/json")
+MIMEMAP("kar", "audio/midi")
+MIMEMAP("kml", "application/vnd.google-earth.kml+xml")
+MIMEMAP("kmz", "application/vnd.google-earth.kmz")
+MIMEMAP("m3u8", "application/vnd.apple.mpegurl")
+MIMEMAP("m4a", "audio/x-m4a")
+MIMEMAP("m4v", "video/x-m4v")
+MIMEMAP("md", "text/markdown")
+MIMEMAP("mid", "audio/midi")
+MIMEMAP("midi", "audio/midi")
+MIMEMAP("mml", "text/mathml")
+MIMEMAP("mng", "video/x-mng")
+MIMEMAP("mov", "video/quicktime")
+MIMEMAP("mp3", "audio/mpeg")
+MIMEMAP("mp4", "video/mp4")
+MIMEMAP("mpeg", "video/mpeg")
+MIMEMAP("mpg", "video/mpeg")
+MIMEMAP("msi", "application/octet-stream")
+MIMEMAP("msm", "application/octet-stream")
+MIMEMAP("msp", "application/octet-stream")
+MIMEMAP("ogg", "audio/ogg")
+MIMEMAP("opus", "audio/ogg")
+MIMEMAP("pdb", "application/x-pilot")
+MIMEMAP("pdf", "application/pdf")
+MIMEMAP("pem", "application/x-x509-ca-cert")
+MIMEMAP("pl", "application/x-perl")
+MIMEMAP("pm", "application/x-perl")
+MIMEMAP("png", "image/png")
+MIMEMAP("ppt", "application/vnd.ms-powerpoint")
+MIMEMAP("pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation")
+MIMEMAP("prc", "application/x-pilot")
+MIMEMAP("ps", "application/postscript")
+MIMEMAP("ra", "audio/x-realaudio")
+MIMEMAP("rar", "application/x-rar-compressed")
+MIMEMAP("rpm", "application/x-redhat-package-manager")
+MIMEMAP("rss", "application/rss+xml")
+MIMEMAP("rtf", "application/rtf")
+MIMEMAP("run", "application/x-makeself")
+MIMEMAP("sea", "application/x-sea")
+MIMEMAP("shtml", "text/html")
+MIMEMAP("sit", "application/x-stuffit")
+MIMEMAP("svg", "image/svg+xml")
+MIMEMAP("svgz", "image/svg+xml")
+MIMEMAP("swf", "application/x-shockwave-flash")
+MIMEMAP("tcl", "application/x-tcl")
+MIMEMAP("tif", "image/tiff")
+MIMEMAP("tiff", "image/tiff")
+MIMEMAP("tk", "application/x-tcl")
+MIMEMAP("ts", "video/mp2t")
+MIMEMAP("txt", "text/plain")
+MIMEMAP("war", "application/java-archive")
+MIMEMAP("wbmp", "image/vnd.wap.wbmp")
+MIMEMAP("webm", "video/webm")
+MIMEMAP("webp", "image/webp")
+MIMEMAP("wml", "text/vnd.wap.wml")
+MIMEMAP("wmlc", "application/vnd.wap.wmlc")
+MIMEMAP("wmv", "video/x-ms-wmv")
+MIMEMAP("woff", "application/font-woff")
+MIMEMAP("woff2", "font/woff2")
+MIMEMAP("xhtml", "application/xhtml+xml")
+MIMEMAP("xls", "application/vnd.ms-excel")
+MIMEMAP("xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
+MIMEMAP("xml", "text/xml")
+MIMEMAP("xpi", "application/x-xpinstall")
+MIMEMAP("xspf", "application/xspf+xml")
+MIMEMAP("zip", "application/zip")
diff --git a/debian/vendor-h2o/lib/handler/mruby.c b/debian/vendor-h2o/lib/handler/mruby.c
new file mode 100644
index 0000000..af2af53
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/mruby.c
@@ -0,0 +1,938 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku, Ryosuke Matsumoto,
+ *                         Masayoshi Takahashi
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <errno.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <mruby.h>
+#include <mruby/proc.h>
+#include <mruby/array.h>
+#include <mruby/class.h>
+#include <mruby/compile.h>
+#include <mruby/error.h>
+#include <mruby/hash.h>
+#include <mruby/string.h>
+#include <mruby/throw.h>
+#include <mruby/variable.h>
+#include <mruby_input_stream.h>
+#include "h2o.h"
+#include "h2o/mruby_.h"
+#include "mruby/embedded.c.h"
+
+#define STATUS_FALLTHRU 399
+#define FALLTHRU_SET_PREFIX "x-fallthru-set-"
+
+#define FREEZE_STRING(v) MRB_SET_FROZEN_FLAG(mrb_obj_ptr(v))
+
+__thread h2o_mruby_generator_t *h2o_mruby_current_generator = NULL;
+
+void h2o_mruby__assert_failed(mrb_state *mrb, const char *file, int line)
+{
+    mrb_value obj = mrb_funcall(mrb, mrb_obj_value(mrb->exc), "inspect", 0);
+    struct RString *error = mrb_str_ptr(obj);
+    fprintf(stderr, "unexpected ruby error at file: \"%s\", line %d: %s", file, line, error->as.heap.ptr);
+    abort();
+}
+
+void h2o_mruby_setup_globals(mrb_state *mrb)
+{
+    const char *root = getenv("H2O_ROOT");
+    if (root == NULL)
+        root = H2O_TO_STR(H2O_ROOT);
+    mrb_gv_set(mrb, mrb_intern_lit(mrb, "$H2O_ROOT"), mrb_str_new(mrb, root, strlen(root)));
+
+    h2o_mruby_eval_expr(mrb, "$LOAD_PATH << \"#{$H2O_ROOT}/share/h2o/mruby\"");
+    h2o_mruby_assert(mrb);
+
+    /* require core modules and include built-in libraries */
+    h2o_mruby_eval_expr(mrb, "require \"#{$H2O_ROOT}/share/h2o/mruby/preloads.rb\"");
+    if (mrb->exc != NULL) {
+        if (mrb_obj_is_instance_of(mrb, mrb_obj_value(mrb->exc), mrb_class_get(mrb, "LoadError"))) {
+            fprintf(stderr, "file \"%s/%s\" not found. Did you forget to run `make install` ?", root,
+                    "share/h2o/mruby/preloads.rb");
+        } else {
+            mrb_value obj = mrb_funcall(mrb, mrb_obj_value(mrb->exc), "inspect", 0);
+            struct RString *error = mrb_str_ptr(obj);
+            fprintf(stderr, "an error occurred while loading %s/%s: %s", root, "share/h2o/mruby/preloads.rb", error->as.heap.ptr);
+        }
+        abort();
+    }
+}
+
+mrb_value h2o_mruby_to_str(mrb_state *mrb, mrb_value v)
+{
+    if (!mrb_string_p(v))
+        H2O_MRUBY_EXEC_GUARD({ v = mrb_str_to_str(mrb, v); });
+    return v;
+}
+
+mrb_value h2o_mruby_eval_expr(mrb_state *mrb, const char *expr)
+{
+    return mrb_funcall(mrb, mrb_top_self(mrb), "eval", 1, mrb_str_new_cstr(mrb, expr));
+}
+
+void h2o_mruby_define_callback(mrb_state *mrb, const char *name, int id)
+{
+    mrb_value args[2];
+    args[0] = mrb_str_new_cstr(mrb, name);
+    args[1] = mrb_fixnum_value(id);
+    mrb_funcall_argv(mrb, mrb_top_self(mrb), mrb_intern_lit(mrb, "_h2o_define_callback"), 2, args);
+
+    if (mrb->exc != NULL) {
+        fprintf(stderr, "failed to define mruby function: %s\n", name);
+        h2o_mruby_assert(mrb);
+    }
+}
+
+mrb_value h2o_mruby_create_data_instance(mrb_state *mrb, mrb_value class_obj, void *ptr, const mrb_data_type *type)
+{
+    struct RClass *klass = mrb_class_ptr(class_obj);
+    struct RData *data = mrb_data_object_alloc(mrb, klass, ptr, type);
+    return mrb_obj_value(data);
+}
+
+mrb_value h2o_mruby_compile_code(mrb_state *mrb, h2o_mruby_config_vars_t *config, char *errbuf)
+{
+    mrbc_context *cxt;
+    struct mrb_parser_state *parser;
+    struct RProc *proc = NULL;
+    mrb_value result = mrb_nil_value();
+
+    /* parse */
+    if ((cxt = mrbc_context_new(mrb)) == NULL) {
+        fprintf(stderr, "%s: no memory\n", H2O_MRUBY_MODULE_NAME);
+        abort();
+    }
+    if (config->path != NULL)
+        mrbc_filename(mrb, cxt, config->path);
+    cxt->capture_errors = 1;
+    cxt->lineno = config->lineno;
+    if ((parser = mrb_parse_nstring(mrb, config->source.base, (int)config->source.len, cxt)) == NULL) {
+        fprintf(stderr, "%s: no memory\n", H2O_MRUBY_MODULE_NAME);
+        abort();
+    }
+    /* return erro if errbuf is supplied, or abort */
+    if (parser->nerr != 0) {
+        if (errbuf == NULL) {
+            fprintf(stderr, "%s: internal error (unexpected state)\n", H2O_MRUBY_MODULE_NAME);
+            abort();
+        }
+        snprintf(errbuf, 256, "line %d:%s", parser->error_buffer[0].lineno, parser->error_buffer[0].message);
+        strcat(errbuf, "\n\n");
+        if (h2o_str_at_position(errbuf + strlen(errbuf), config->source.base, config->source.len,
+                                parser->error_buffer[0].lineno - config->lineno + 1, parser->error_buffer[0].column) != 0) {
+            /* remove trailing "\n\n" in case we failed to append the source code at the error location */
+            errbuf[strlen(errbuf) - 2] = '\0';
+        }
+        goto Exit;
+    }
+    /* generate code */
+    if ((proc = mrb_generate_code(mrb, parser)) == NULL) {
+        fprintf(stderr, "%s: internal error (mrb_generate_code failed)\n", H2O_MRUBY_MODULE_NAME);
+        abort();
+    }
+
+    /* adjust stack length of toplevel environment (see https://github.com/h2o/h2o/issues/1464#issuecomment-337880408) */
+    if (mrb->c->cibase->env) {
+        struct REnv *e = mrb->c->cibase->env;
+        if (MRB_ENV_STACK_LEN(e) < proc->body.irep->nlocals)
+            MRB_SET_ENV_STACK_LEN(e, proc->body.irep->nlocals);
+    }
+
+    /* reset configuration context */
+    h2o_mruby_eval_expr(mrb, "H2O::ConfigurationContext.reset");
+    h2o_mruby_assert(mrb);
+
+    /* run code and generate handler */
+    result = mrb_run(mrb, proc, mrb_top_self(mrb));
+    if (mrb->exc != NULL) {
+        mrb_value obj = mrb_funcall(mrb, mrb_obj_value(mrb->exc), "inspect", 0);
+        struct RString *error = mrb_str_ptr(obj);
+        snprintf(errbuf, 256, "%s", error->as.heap.ptr);
+        mrb->exc = 0;
+        result = mrb_nil_value();
+        goto Exit;
+    } else if (mrb_nil_p(result)) {
+        snprintf(errbuf, 256, "returned value is not callable");
+        goto Exit;
+    }
+
+    /* call post_handler_generation hooks */
+    mrb_funcall_argv(mrb, h2o_mruby_eval_expr(mrb, "H2O::ConfigurationContext.instance"),
+                     mrb_intern_lit(mrb, "call_post_handler_generation_hooks"), 1, &result);
+    if (mrb->exc != NULL) {
+        mrb_value obj = mrb_funcall(mrb, mrb_obj_value(mrb->exc), "inspect", 0);
+        struct RString *error = mrb_str_ptr(obj);
+        snprintf(errbuf, 256, "%s", error->as.heap.ptr);
+        mrb->exc = 0;
+        result = mrb_nil_value();
+        goto Exit;
+    }
+
+Exit:
+    mrb_parser_free(parser);
+    mrbc_context_free(mrb, cxt);
+    return result;
+}
+
+static h2o_iovec_t convert_header_name_to_env(h2o_mem_pool_t *pool, const char *name, size_t len)
+{
+#define KEY_PREFIX "HTTP_"
+#define KEY_PREFIX_LEN (sizeof(KEY_PREFIX) - 1)
+
+    h2o_iovec_t ret;
+
+    ret.len = len + KEY_PREFIX_LEN;
+    ret.base = h2o_mem_alloc_pool(pool, ret.len);
+
+    memcpy(ret.base, KEY_PREFIX, KEY_PREFIX_LEN);
+
+    char *d = ret.base + KEY_PREFIX_LEN;
+    for (; len != 0; ++name, --len)
+        *d++ = *name == '-' ? '_' : h2o_toupper(*name);
+
+    return ret;
+
+#undef KEY_PREFIX
+#undef KEY_PREFIX_LEN
+}
+
+static mrb_value build_constants(mrb_state *mrb, const char *server_name, size_t server_name_len)
+{
+    mrb_value ary = mrb_ary_new_capa(mrb, H2O_MRUBY_NUM_CONSTANTS);
+    mrb_int i;
+
+    int gc_arena = mrb_gc_arena_save(mrb);
+
+    {
+        h2o_mem_pool_t pool;
+        h2o_mem_init_pool(&pool);
+        for (i = 0; i != H2O_MAX_TOKENS; ++i) {
+            const h2o_token_t *token = h2o__tokens + i;
+            mrb_value lit = mrb_nil_value();
+            if (token == H2O_TOKEN_CONTENT_TYPE) {
+                lit = mrb_str_new_lit(mrb, "CONTENT_TYPE");
+            } else if (token->buf.len != 0) {
+                h2o_iovec_t n = convert_header_name_to_env(&pool, token->buf.base, token->buf.len);
+                lit = mrb_str_new(mrb, n.base, n.len);
+            }
+            if (mrb_string_p(lit)) {
+                FREEZE_STRING(lit);
+                mrb_ary_set(mrb, ary, i, lit);
+            }
+        }
+        h2o_mem_clear_pool(&pool);
+    }
+
+#define SET_STRING(idx, value)                                                                                                     \
+    do {                                                                                                                           \
+        mrb_value lit = (value);                                                                                                   \
+        FREEZE_STRING(lit);                                                                                                        \
+        mrb_ary_set(mrb, ary, idx, lit);                                                                                           \
+    } while (0)
+#define SET_LITERAL(idx, str) SET_STRING(idx, mrb_str_new_lit(mrb, str))
+
+    SET_LITERAL(H2O_MRUBY_LIT_REQUEST_METHOD, "REQUEST_METHOD");
+    SET_LITERAL(H2O_MRUBY_LIT_SCRIPT_NAME, "SCRIPT_NAME");
+    SET_LITERAL(H2O_MRUBY_LIT_PATH_INFO, "PATH_INFO");
+    SET_LITERAL(H2O_MRUBY_LIT_QUERY_STRING, "QUERY_STRING");
+    SET_LITERAL(H2O_MRUBY_LIT_SERVER_NAME, "SERVER_NAME");
+    SET_LITERAL(H2O_MRUBY_LIT_SERVER_ADDR, "SERVER_ADDR");
+    SET_LITERAL(H2O_MRUBY_LIT_SERVER_PORT, "SERVER_PORT");
+    SET_LITERAL(H2O_MRUBY_LIT_SERVER_PROTOCOL, "SERVER_PROTOCOL");
+    SET_LITERAL(H2O_MRUBY_LIT_CONTENT_LENGTH, "CONTENT_LENGTH");
+    SET_LITERAL(H2O_MRUBY_LIT_REMOTE_ADDR, "REMOTE_ADDR");
+    SET_LITERAL(H2O_MRUBY_LIT_REMOTE_PORT, "REMOTE_PORT");
+    SET_LITERAL(H2O_MRUBY_LIT_REMOTE_USER, "REMOTE_USER");
+    SET_LITERAL(H2O_MRUBY_LIT_RACK_URL_SCHEME, "rack.url_scheme");
+    SET_LITERAL(H2O_MRUBY_LIT_RACK_MULTITHREAD, "rack.multithread");
+    SET_LITERAL(H2O_MRUBY_LIT_RACK_MULTIPROCESS, "rack.multiprocess");
+    SET_LITERAL(H2O_MRUBY_LIT_RACK_RUN_ONCE, "rack.run_once");
+    SET_LITERAL(H2O_MRUBY_LIT_RACK_HIJACK_, "rack.hijack?");
+    SET_LITERAL(H2O_MRUBY_LIT_RACK_INPUT, "rack.input");
+    SET_LITERAL(H2O_MRUBY_LIT_RACK_ERRORS, "rack.errors");
+    SET_LITERAL(H2O_MRUBY_LIT_SERVER_SOFTWARE, "SERVER_SOFTWARE");
+    SET_STRING(H2O_MRUBY_LIT_SERVER_SOFTWARE_VALUE, mrb_str_new(mrb, server_name, server_name_len));
+    SET_LITERAL(H2O_MRUBY_LIT_SEPARATOR_COMMA, ", ");
+    SET_LITERAL(H2O_MRUBY_LIT_SEPARATOR_SEMICOLON, "; ");
+
+#undef SET_LITERAL
+#undef SET_STRING
+
+    h2o_mruby_eval_expr(mrb, H2O_MRUBY_CODE_CORE);
+    h2o_mruby_assert(mrb);
+
+    mrb_ary_set(mrb, ary, H2O_MRUBY_PROC_EACH_TO_ARRAY,
+                mrb_funcall(mrb, mrb_obj_value(mrb->kernel_module), "_h2o_proc_each_to_array", 0));
+    h2o_mruby_assert(mrb);
+
+    /* sends exception using H2O_MRUBY_CALLBACK_ID_EXCEPTION_RAISED */
+    mrb_ary_set(mrb, ary, H2O_MRUBY_PROC_APP_TO_FIBER,
+                mrb_funcall(mrb, mrb_obj_value(mrb->kernel_module), "_h2o_proc_app_to_fiber", 0));
+    h2o_mruby_assert(mrb);
+
+    mrb_gc_arena_restore(mrb, gc_arena);
+    return ary;
+}
+
+static h2o_mruby_shared_context_t *create_shared_context(h2o_context_t *ctx)
+{
+    /* init mruby in every thread */
+    h2o_mruby_shared_context_t *shared_ctx = h2o_mem_alloc(sizeof(*shared_ctx));
+    if ((shared_ctx->mrb = mrb_open()) == NULL) {
+        fprintf(stderr, "%s: no memory\n", H2O_MRUBY_MODULE_NAME);
+        abort();
+    }
+    h2o_mruby_setup_globals(shared_ctx->mrb);
+    shared_ctx->constants = build_constants(shared_ctx->mrb, ctx->globalconf->server_name.base, ctx->globalconf->server_name.len);
+    shared_ctx->symbols.sym_call = mrb_intern_lit(shared_ctx->mrb, "call");
+    shared_ctx->symbols.sym_close = mrb_intern_lit(shared_ctx->mrb, "close");
+    shared_ctx->symbols.sym_method = mrb_intern_lit(shared_ctx->mrb, "method");
+    shared_ctx->symbols.sym_headers = mrb_intern_lit(shared_ctx->mrb, "headers");
+    shared_ctx->symbols.sym_body = mrb_intern_lit(shared_ctx->mrb, "body");
+    shared_ctx->symbols.sym_async = mrb_intern_lit(shared_ctx->mrb, "async");
+
+    h2o_mruby_send_chunked_init_context(shared_ctx);
+    h2o_mruby_http_request_init_context(shared_ctx);
+
+    return shared_ctx;
+}
+
+static void dispose_shared_context(void *data)
+{
+    if (data == NULL)
+        return;
+    h2o_mruby_shared_context_t *shared_ctx = (h2o_mruby_shared_context_t *)data;
+    mrb_close(shared_ctx->mrb);
+    free(shared_ctx);
+}
+
+static h2o_mruby_shared_context_t *get_shared_context(h2o_context_t *ctx)
+{
+    static size_t key = SIZE_MAX;
+    void **data = h2o_context_get_storage(ctx, &key, dispose_shared_context);
+    if (*data == NULL) {
+        *data = create_shared_context(ctx);
+    }
+    return *data;
+}
+
+static void on_context_init(h2o_handler_t *_handler, h2o_context_t *ctx)
+{
+    h2o_mruby_handler_t *handler = (void *)_handler;
+    h2o_mruby_context_t *handler_ctx = h2o_mem_alloc(sizeof(*handler_ctx));
+
+    handler_ctx->handler = handler;
+    handler_ctx->shared = get_shared_context(ctx);
+
+    /* compile code (must be done for each thread) */
+    int arena = mrb_gc_arena_save(handler_ctx->shared->mrb);
+    mrb_value proc = h2o_mruby_compile_code(handler_ctx->shared->mrb, &handler->config, NULL);
+
+    handler_ctx->proc =
+        mrb_funcall_argv(handler_ctx->shared->mrb, mrb_ary_entry(handler_ctx->shared->constants, H2O_MRUBY_PROC_APP_TO_FIBER),
+                         handler_ctx->shared->symbols.sym_call, 1, &proc);
+    h2o_mruby_assert(handler_ctx->shared->mrb);
+    mrb_gc_arena_restore(handler_ctx->shared->mrb, arena);
+    mrb_gc_protect(handler_ctx->shared->mrb, handler_ctx->proc);
+
+    h2o_context_set_handler_context(ctx, &handler->super, handler_ctx);
+}
+
+static void on_context_dispose(h2o_handler_t *_handler, h2o_context_t *ctx)
+{
+    h2o_mruby_handler_t *handler = (void *)_handler;
+    h2o_mruby_context_t *handler_ctx = h2o_context_get_handler_context(ctx, &handler->super);
+
+    if (handler_ctx == NULL)
+        return;
+
+    free(handler_ctx);
+}
+
+static void on_handler_dispose(h2o_handler_t *_handler)
+{
+    h2o_mruby_handler_t *handler = (void *)_handler;
+
+    free(handler->config.source.base);
+    free(handler->config.path);
+    free(handler);
+}
+
+static void report_exception(h2o_req_t *req, mrb_state *mrb)
+{
+    mrb_value obj = mrb_funcall(mrb, mrb_obj_value(mrb->exc), "inspect", 0);
+    struct RString *error = mrb_str_ptr(obj);
+    h2o_req_log_error(req, H2O_MRUBY_MODULE_NAME, "mruby raised: %s\n", error->as.heap.ptr);
+    mrb->exc = NULL;
+}
+
+static void stringify_address(h2o_conn_t *conn, socklen_t (*cb)(h2o_conn_t *conn, struct sockaddr *), mrb_state *mrb,
+                              mrb_value *host, mrb_value *port)
+{
+    struct sockaddr_storage ss;
+    socklen_t sslen;
+    char buf[NI_MAXHOST];
+
+    *host = mrb_nil_value();
+    *port = mrb_nil_value();
+
+    if ((sslen = cb(conn, (void *)&ss)) == 0)
+        return;
+    size_t l = h2o_socket_getnumerichost((void *)&ss, sslen, buf);
+    if (l != SIZE_MAX)
+        *host = mrb_str_new(mrb, buf, l);
+    int32_t p = h2o_socket_getport((void *)&ss);
+    if (p != -1) {
+        l = (int)sprintf(buf, "%" PRIu16, (uint16_t)p);
+        *port = mrb_str_new(mrb, buf, l);
+    }
+}
+
+static void on_rack_input_free(mrb_state *mrb, const char *base, mrb_int len, void *_input_stream)
+{
+    /* reset ref to input_stream */
+    mrb_value *input_stream = _input_stream;
+    *input_stream = mrb_nil_value();
+}
+
+static int build_env_sort_header_cb(const void *_x, const void *_y)
+{
+    const h2o_header_t *x = *(const h2o_header_t **)_x, *y = *(const h2o_header_t **)_y;
+    if (x->name->len < y->name->len)
+        return -1;
+    if (x->name->len > y->name->len)
+        return 1;
+    if (x->name->base != y->name->base) {
+        int r = memcmp(x->name->base, y->name->base, x->name->len);
+        if (r != 0)
+            return r;
+    }
+    assert(x != y);
+    /* the order of the headers having the same name needs to be retained */
+    return x < y ? -1 : 1;
+}
+
+static mrb_value build_path_info(mrb_state *mrb, h2o_req_t *req, size_t confpath_len_wo_slash)
+{
+    if (req->path_normalized.len == confpath_len_wo_slash)
+        return mrb_str_new_lit(mrb, "");
+
+    assert(req->path_normalized.len > confpath_len_wo_slash);
+
+    size_t path_info_start, path_info_end = req->query_at != SIZE_MAX ? req->query_at : req->path.len;
+
+    if (req->norm_indexes == NULL) {
+        path_info_start = confpath_len_wo_slash;
+    } else if (req->norm_indexes[0] == 0 && confpath_len_wo_slash == 0) {
+        /* path without leading slash */
+        path_info_start = 0;
+    } else {
+        path_info_start = req->norm_indexes[confpath_len_wo_slash] - 1;
+    }
+
+    return mrb_str_new(mrb, req->path.base + path_info_start, path_info_end - path_info_start);
+}
+
+static mrb_value build_env(h2o_mruby_generator_t *generator)
+{
+    h2o_mruby_shared_context_t *shared = generator->ctx->shared;
+    mrb_state *mrb = shared->mrb;
+    mrb_value env = mrb_hash_new_capa(mrb, 16);
+    char http_version[sizeof("HTTP/1.0")];
+    size_t http_version_sz;
+
+    /* environment */
+    mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_REQUEST_METHOD),
+                 mrb_str_new(mrb, generator->req->method.base, generator->req->method.len));
+
+    size_t confpath_len_wo_slash = generator->req->pathconf->path.len;
+    if (generator->req->pathconf->path.base[generator->req->pathconf->path.len - 1] == '/')
+        --confpath_len_wo_slash;
+    assert(confpath_len_wo_slash <= generator->req->path_normalized.len);
+
+    mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_SCRIPT_NAME),
+                 mrb_str_new(mrb, generator->req->pathconf->path.base, confpath_len_wo_slash));
+    mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_PATH_INFO), build_path_info(mrb, generator->req, confpath_len_wo_slash));
+    mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_QUERY_STRING),
+                 generator->req->query_at != SIZE_MAX ? mrb_str_new(mrb, generator->req->path.base + generator->req->query_at + 1,
+                                                                    generator->req->path.len - (generator->req->query_at + 1))
+                                                      : mrb_str_new_lit(mrb, ""));
+    mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_SERVER_NAME),
+                 mrb_str_new(mrb, generator->req->hostconf->authority.host.base, generator->req->hostconf->authority.host.len));
+    http_version_sz = h2o_stringify_protocol_version(http_version, generator->req->version);
+    mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_SERVER_PROTOCOL),
+                 mrb_str_new(mrb, http_version, http_version_sz));
+    {
+        mrb_value h, p;
+        stringify_address(generator->req->conn, generator->req->conn->callbacks->get_sockname, mrb, &h, &p);
+        if (!mrb_nil_p(h))
+            mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_SERVER_ADDR), h);
+        if (!mrb_nil_p(p))
+            mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_SERVER_PORT), p);
+    }
+    mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_TOKEN_HOST - h2o__tokens),
+                 mrb_str_new(mrb, generator->req->authority.base, generator->req->authority.len));
+    if (generator->req->entity.base != NULL) {
+        char buf[32];
+        int l = sprintf(buf, "%zu", generator->req->entity.len);
+        mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_CONTENT_LENGTH), mrb_str_new(mrb, buf, l));
+        generator->rack_input = mrb_input_stream_value(mrb, NULL, 0);
+        mrb_input_stream_set_data(mrb, generator->rack_input, generator->req->entity.base, (mrb_int)generator->req->entity.len, 0,
+                                  on_rack_input_free, &generator->rack_input);
+        mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_RACK_INPUT), generator->rack_input);
+    }
+    {
+        mrb_value h, p;
+        stringify_address(generator->req->conn, generator->req->conn->callbacks->get_peername, mrb, &h, &p);
+        if (!mrb_nil_p(h))
+            mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_REMOTE_ADDR), h);
+        if (!mrb_nil_p(p))
+            mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_REMOTE_PORT), p);
+    }
+    {
+        size_t i;
+        for (i = 0; i != generator->req->env.size; i += 2) {
+            h2o_iovec_t *name = generator->req->env.entries + i, *value = name + 1;
+            mrb_hash_set(mrb, env, mrb_str_new(mrb, name->base, name->len), mrb_str_new(mrb, value->base, value->len));
+        }
+    }
+
+    { /* headers */
+        h2o_header_t **headers_sorted = alloca(sizeof(*headers_sorted) * generator->req->headers.size);
+        size_t i;
+        for (i = 0; i != generator->req->headers.size; ++i)
+            headers_sorted[i] = generator->req->headers.entries + i;
+        qsort(headers_sorted, generator->req->headers.size, sizeof(*headers_sorted), build_env_sort_header_cb);
+        for (i = 0; i != generator->req->headers.size; ++i) {
+            const h2o_header_t *header = headers_sorted[i];
+            mrb_value n, v;
+            if (h2o_iovec_is_token(header->name)) {
+                const h2o_token_t *token = H2O_STRUCT_FROM_MEMBER(h2o_token_t, buf, header->name);
+                if (token == H2O_TOKEN_TRANSFER_ENCODING)
+                    continue;
+                n = mrb_ary_entry(shared->constants, (mrb_int)(token - h2o__tokens));
+            } else {
+                h2o_iovec_t vec = convert_header_name_to_env(&generator->req->pool, header->name->base, header->name->len);
+                n = mrb_str_new(mrb, vec.base, vec.len);
+            }
+            v = mrb_str_new(mrb, header->value.base, header->value.len);
+            while (i < generator->req->headers.size - 1) {
+                if (!h2o_memis(headers_sorted[i + 1]->name->base, headers_sorted[i + 1]->name->len, header->name->base,
+                               header->name->len))
+                    break;
+                header = headers_sorted[++i];
+                v = mrb_str_append(mrb, v, mrb_ary_entry(shared->constants,
+                                                         header->name == &H2O_TOKEN_COOKIE->buf ? H2O_MRUBY_LIT_SEPARATOR_SEMICOLON
+                                                                                                : H2O_MRUBY_LIT_SEPARATOR_COMMA));
+                v = mrb_str_append(mrb, v, mrb_str_new(mrb, header->value.base, header->value.len));
+            }
+            mrb_hash_set(mrb, env, n, v);
+        }
+    }
+
+    /* rack.* */
+    /* TBD rack.version? */
+    mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_RACK_URL_SCHEME),
+                 mrb_str_new(mrb, generator->req->scheme->name.base, generator->req->scheme->name.len));
+    /* we are using shared-none architecture, and therefore declare ourselves as multiprocess */
+    mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_RACK_MULTITHREAD), mrb_false_value());
+    mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_RACK_MULTIPROCESS), mrb_true_value());
+    mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_RACK_RUN_ONCE), mrb_false_value());
+    mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_RACK_HIJACK_), mrb_false_value());
+    mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_RACK_ERRORS),
+                 mrb_gv_get(mrb, mrb_intern_lit(mrb, "$stderr")));
+
+    /* server name */
+    mrb_hash_set(mrb, env, mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_SERVER_SOFTWARE),
+                 mrb_ary_entry(shared->constants, H2O_MRUBY_LIT_SERVER_SOFTWARE_VALUE));
+
+    return env;
+}
+
+static int handle_response_header(h2o_mruby_context_t *handler_ctx, h2o_iovec_t name, h2o_iovec_t value, void *_req)
+{
+    h2o_req_t *req = _req;
+    const h2o_token_t *token;
+    static const h2o_iovec_t fallthru_set_prefix = {H2O_STRLIT(FALLTHRU_SET_PREFIX)};
+
+    /* convert name to lowercase */
+    name = h2o_strdup(&req->pool, name.base, name.len);
+    h2o_strtolower(name.base, name.len);
+
+    if ((token = h2o_lookup_token(name.base, name.len)) != NULL) {
+        if (token->proxy_should_drop_for_res) {
+            /* skip */
+        } else if (token == H2O_TOKEN_CONTENT_LENGTH) {
+            req->res.content_length = h2o_strtosize(value.base, value.len);
+        } else {
+            value = h2o_strdup(&req->pool, value.base, value.len);
+            if (token == H2O_TOKEN_LINK) {
+                h2o_iovec_t new_value = h2o_push_path_in_link_header(req, value.base, value.len);
+                if (new_value.len)
+                    h2o_add_header(&req->pool, &req->res.headers, token, NULL, new_value.base, new_value.len);
+            } else {
+                h2o_add_header(&req->pool, &req->res.headers, token, NULL, value.base, value.len);
+            }
+        }
+    } else if (name.len > fallthru_set_prefix.len &&
+               h2o_memis(name.base, fallthru_set_prefix.len, fallthru_set_prefix.base, fallthru_set_prefix.len)) {
+        /* register environment variables (with the name converted to uppercase, and using `_`) */
+        size_t i;
+        name.base += fallthru_set_prefix.len;
+        name.len -= fallthru_set_prefix.len;
+        for (i = 0; i != name.len; ++i)
+            name.base[i] = name.base[i] == '-' ? '_' : h2o_toupper(name.base[i]);
+        h2o_iovec_t *slot = h2o_req_getenv(req, name.base, name.len, 1);
+        *slot = h2o_strdup(&req->pool, value.base, value.len);
+    } else {
+        value = h2o_strdup(&req->pool, value.base, value.len);
+        h2o_add_header_by_str(&req->pool, &req->res.headers, name.base, name.len, 0, NULL, value.base, value.len);
+    }
+
+    return 0;
+}
+
+static void clear_rack_input(h2o_mruby_generator_t *generator)
+{
+    if (!mrb_nil_p(generator->rack_input))
+        mrb_input_stream_set_data(generator->ctx->shared->mrb, generator->rack_input, NULL, -1, 0, NULL, NULL);
+}
+
+static void on_generator_dispose(void *_generator)
+{
+    h2o_mruby_generator_t *generator = _generator;
+
+    clear_rack_input(generator);
+    generator->req = NULL;
+
+    if (generator->chunked != NULL)
+        h2o_mruby_send_chunked_dispose(generator);
+}
+
+static int on_req(h2o_handler_t *_handler, h2o_req_t *req)
+{
+    h2o_mruby_handler_t *handler = (void *)_handler;
+    h2o_mruby_shared_context_t *shared = get_shared_context(req->conn->ctx);
+    int gc_arena = mrb_gc_arena_save(shared->mrb);
+
+    h2o_mruby_generator_t *generator = h2o_mem_alloc_shared(&req->pool, sizeof(*generator), on_generator_dispose);
+    generator->super.proceed = NULL;
+    generator->super.stop = NULL;
+    generator->req = req;
+    generator->ctx = h2o_context_get_handler_context(req->conn->ctx, &handler->super);
+    generator->rack_input = mrb_nil_value();
+    generator->chunked = NULL;
+
+    mrb_value env = build_env(generator);
+
+    int is_delegate = 0;
+    h2o_mruby_run_fiber(generator, generator->ctx->proc, env, &is_delegate);
+
+    mrb_gc_arena_restore(shared->mrb, gc_arena);
+    if (is_delegate)
+        return -1;
+    return 0;
+}
+
+static void send_response(h2o_mruby_generator_t *generator, mrb_int status, mrb_value resp, int *is_delegate)
+{
+    mrb_state *mrb = generator->ctx->shared->mrb;
+    mrb_value body;
+    h2o_iovec_t content = {NULL};
+
+    /* set status */
+    generator->req->res.status = (int)status;
+
+    /* set headers */
+    if (h2o_mruby_iterate_headers(generator->ctx, mrb_ary_entry(resp, 1), handle_response_header, generator->req) != 0) {
+        assert(mrb->exc != NULL);
+        goto GotException;
+    }
+
+    /* return without processing body, if status is fallthru */
+    if (generator->req->res.status == STATUS_FALLTHRU) {
+        if (is_delegate != NULL)
+            *is_delegate = 1;
+        else
+            h2o_delegate_request_deferred(generator->req, &generator->ctx->handler->super);
+        return;
+    }
+
+    /* obtain body */
+    body = mrb_ary_entry(resp, 2);
+
+    /* flatten body if possible */
+    if (mrb_array_p(body)) {
+        mrb_int i, len = RARRAY_LEN(body);
+        /* calculate the length of the output, while at the same time converting the elements of the output array to string */
+        content.len = 0;
+        for (i = 0; i != len; ++i) {
+            mrb_value e = mrb_ary_entry(body, i);
+            if (!mrb_string_p(e)) {
+                e = h2o_mruby_to_str(mrb, e);
+                if (mrb->exc != NULL)
+                    goto GotException;
+                mrb_ary_set(mrb, body, i, e);
+            }
+            content.len += RSTRING_LEN(e);
+        }
+        /* allocate memory, and copy the response */
+        char *dst = content.base = h2o_mem_alloc_pool(&generator->req->pool, content.len);
+        for (i = 0; i != len; ++i) {
+            mrb_value e = mrb_ary_entry(body, i);
+            assert(mrb_string_p(e));
+            memcpy(dst, RSTRING_PTR(e), RSTRING_LEN(e));
+            dst += RSTRING_LEN(e);
+        }
+        /* reset body to nil, now that we have read all data */
+        body = mrb_nil_value();
+    }
+
+    /* use fiber in case we need to call #each */
+    if (!mrb_nil_p(body)) {
+        h2o_start_response(generator->req, &generator->super);
+        mrb_value receiver = h2o_mruby_send_chunked_init(generator, body);
+        if (!mrb_nil_p(receiver))
+            h2o_mruby_run_fiber(generator, receiver, body, 0);
+        return;
+    }
+
+    /* send the entire response immediately */
+    if (status == 101 || status == 204 || status == 304 ||
+        h2o_memis(generator->req->input.method.base, generator->req->input.method.len, H2O_STRLIT("HEAD"))) {
+        h2o_start_response(generator->req, &generator->super);
+        h2o_send(generator->req, NULL, 0, H2O_SEND_STATE_FINAL);
+    } else {
+        if (content.len < generator->req->res.content_length) {
+            generator->req->res.content_length = content.len;
+        } else {
+            content.len = generator->req->res.content_length;
+        }
+        h2o_start_response(generator->req, &generator->super);
+        h2o_send(generator->req, &content, 1, H2O_SEND_STATE_FINAL);
+    }
+    return;
+
+GotException:
+    report_exception(generator->req, mrb);
+    h2o_send_error_500(generator->req, "Internal Server Error", "Internal Server Error", 0);
+}
+
+void h2o_mruby_run_fiber(h2o_mruby_generator_t *generator, mrb_value receiver, mrb_value input, int *is_delegate)
+{
+    mrb_state *mrb = generator->ctx->shared->mrb;
+    mrb_value output;
+    mrb_int status;
+
+    if (!mrb_obj_eq(mrb, generator->ctx->proc, receiver)) {
+        mrb_gc_unregister(mrb, receiver);
+        mrb_gc_protect(mrb, receiver);
+    }
+
+    h2o_mruby_current_generator = generator;
+
+    while (1) {
+        /* send input to fiber */
+        output = mrb_funcall_argv(mrb, receiver, generator->ctx->shared->symbols.sym_call, 1, &input);
+        if (mrb->exc != NULL)
+            goto GotException;
+        if (!mrb_array_p(output)) {
+            mrb->exc = mrb_obj_ptr(mrb_exc_new_str_lit(mrb, E_RUNTIME_ERROR, "rack app did not return an array"));
+            goto GotException;
+        }
+        /* fetch status */
+        mrb_value v = mrb_to_int(mrb, mrb_ary_entry(output, 0));
+        if (mrb->exc != NULL)
+            goto GotException;
+        status = mrb_fixnum(v);
+        /* take special action depending on the status code */
+        if (status < 0) {
+            if (status == H2O_MRUBY_CALLBACK_ID_EXCEPTION_RAISED) {
+                mrb->exc = mrb_obj_ptr(mrb_ary_entry(output, 1));
+                goto GotException;
+            }
+            receiver = mrb_ary_entry(output, 1);
+            int next_action = H2O_MRUBY_CALLBACK_NEXT_ACTION_IMMEDIATE;
+            mrb_value args = mrb_ary_entry(output, 2);
+            if (mrb_array_p(args)) {
+                switch (status) {
+                case H2O_MRUBY_CALLBACK_ID_SEND_CHUNKED_EOS:
+                    input = h2o_mruby_send_chunked_eos_callback(generator, receiver, args, &next_action);
+                    break;
+                case H2O_MRUBY_CALLBACK_ID_HTTP_JOIN_RESPONSE:
+                    input = h2o_mruby_http_join_response_callback(generator, receiver, args, &next_action);
+                    break;
+                case H2O_MRUBY_CALLBACK_ID_HTTP_FETCH_CHUNK:
+                    input = h2o_mruby_http_fetch_chunk_callback(generator, receiver, args, &next_action);
+                    break;
+                default:
+                    input = mrb_exc_new_str_lit(mrb, E_RUNTIME_ERROR, "unexpected callback id sent from rack app");
+                    break;
+                }
+            } else {
+                input = mrb_exc_new_str_lit(mrb, E_RUNTIME_ERROR, "callback from rack app did not receive an array arg");
+            }
+            switch (next_action) {
+            case H2O_MRUBY_CALLBACK_NEXT_ACTION_STOP:
+                return;
+            case H2O_MRUBY_CALLBACK_NEXT_ACTION_ASYNC:
+                goto Async;
+            default:
+                assert(next_action == H2O_MRUBY_CALLBACK_NEXT_ACTION_IMMEDIATE);
+                break;
+            }
+            goto Next;
+        }
+        /* if no special actions were necessary, then the output is a rack response */
+        break;
+    Next:
+        mrb_gc_protect(mrb, receiver);
+        mrb_gc_protect(mrb, input);
+    }
+
+    h2o_mruby_current_generator = NULL;
+
+    if (!(100 <= status && status <= 999)) {
+        mrb->exc = mrb_obj_ptr(mrb_exc_new_str_lit(mrb, E_RUNTIME_ERROR, "status returned from rack app is out of range"));
+        goto GotException;
+    }
+
+    /* send the response (unless req is already closed) */
+    if (generator->req == NULL)
+        return;
+    if (generator->req->_generator != NULL) {
+        mrb->exc = mrb_obj_ptr(mrb_exc_new_str_lit(mrb, E_RUNTIME_ERROR, "unexpectedly received a rack response"));
+        goto GotException;
+    }
+    send_response(generator, status, output, is_delegate);
+    return;
+
+GotException:
+    h2o_mruby_current_generator = NULL;
+    if (generator->req != NULL) {
+        report_exception(generator->req, mrb);
+        if (generator->req->_generator == NULL) {
+            h2o_send_error_500(generator->req, "Internal Server Error", "Internal Server Error", 0);
+        } else {
+            h2o_mruby_send_chunked_close(generator);
+        }
+    }
+    return;
+
+Async:
+    h2o_mruby_current_generator = NULL;
+    if (!mrb_obj_eq(mrb, generator->ctx->proc, receiver))
+        mrb_gc_register(mrb, receiver);
+    return;
+}
+
+h2o_mruby_handler_t *h2o_mruby_register(h2o_pathconf_t *pathconf, h2o_mruby_config_vars_t *vars)
+{
+    h2o_mruby_handler_t *handler = (void *)h2o_create_handler(pathconf, sizeof(*handler));
+
+    handler->super.on_context_init = on_context_init;
+    handler->super.on_context_dispose = on_context_dispose;
+    handler->super.dispose = on_handler_dispose;
+    handler->super.on_req = on_req;
+    handler->config.source = h2o_strdup(NULL, vars->source.base, vars->source.len);
+    if (vars->path != NULL)
+        handler->config.path = h2o_strdup(NULL, vars->path, SIZE_MAX).base;
+    handler->config.lineno = vars->lineno;
+
+    return handler;
+}
+
+mrb_value h2o_mruby_each_to_array(h2o_mruby_context_t *handler_ctx, mrb_value src)
+{
+    return mrb_funcall_argv(handler_ctx->shared->mrb, mrb_ary_entry(handler_ctx->shared->constants, H2O_MRUBY_PROC_EACH_TO_ARRAY),
+                            handler_ctx->shared->symbols.sym_call, 1, &src);
+}
+
+static int iterate_headers_handle_pair(h2o_mruby_context_t *handler_ctx, mrb_value name, mrb_value value,
+                                       int (*cb)(h2o_mruby_context_t *, h2o_iovec_t, h2o_iovec_t, void *), void *cb_data)
+{
+    mrb_state *mrb = handler_ctx->shared->mrb;
+
+    /* convert name and value to string */
+    name = h2o_mruby_to_str(mrb, name);
+    if (mrb->exc != NULL)
+        return -1;
+    value = h2o_mruby_to_str(mrb, value);
+    if (mrb->exc != NULL)
+        return -1;
+
+    /* call the callback, splitting the values with '\n' */
+    const char *vstart = RSTRING_PTR(value), *vend = vstart + RSTRING_LEN(value), *eol;
+    while (1) {
+        for (eol = vstart; eol != vend; ++eol)
+            if (*eol == '\n')
+                break;
+        if (cb(handler_ctx, h2o_iovec_init(RSTRING_PTR(name), RSTRING_LEN(name)), h2o_iovec_init(vstart, eol - vstart), cb_data) !=
+            0)
+            return -1;
+        if (eol == vend)
+            break;
+        vstart = eol + 1;
+    }
+
+    return 0;
+}
+
+int h2o_mruby_iterate_headers(h2o_mruby_context_t *handler_ctx, mrb_value headers,
+                              int (*cb)(h2o_mruby_context_t *, h2o_iovec_t, h2o_iovec_t, void *), void *cb_data)
+{
+    mrb_state *mrb = handler_ctx->shared->mrb;
+
+    if (!(mrb_hash_p(headers) || mrb_array_p(headers))) {
+        headers = h2o_mruby_each_to_array(handler_ctx, headers);
+        if (mrb->exc != NULL)
+            return -1;
+        assert(mrb_array_p(headers));
+    }
+
+    if (mrb_hash_p(headers)) {
+        mrb_value keys = mrb_hash_keys(mrb, headers);
+        mrb_int i, len = RARRAY_LEN(keys);
+        for (i = 0; i != len; ++i) {
+            mrb_value k = mrb_ary_entry(keys, i);
+            mrb_value v = mrb_hash_get(mrb, headers, k);
+            if (iterate_headers_handle_pair(handler_ctx, k, v, cb, cb_data) != 0)
+                return -1;
+        }
+    } else {
+        assert(mrb_array_p(headers));
+        mrb_int i, len = RARRAY_LEN(headers);
+        for (i = 0; i != len; ++i) {
+            mrb_value pair = mrb_ary_entry(headers, i);
+            if (!mrb_array_p(pair)) {
+                mrb->exc = mrb_obj_ptr(mrb_exc_new_str_lit(mrb, E_ARGUMENT_ERROR, "array element of headers MUST by an array"));
+                return -1;
+            }
+            if (iterate_headers_handle_pair(handler_ctx, mrb_ary_entry(pair, 0), mrb_ary_entry(pair, 1), cb, cb_data) != 0)
+                return -1;
+        }
+    }
+
+    return 0;
+}
diff --git a/debian/vendor-h2o/lib/handler/mruby/chunked.c b/debian/vendor-h2o/lib/handler/mruby/chunked.c
new file mode 100644
index 0000000..28e3ae4
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/mruby/chunked.c
@@ -0,0 +1,270 @@
+/*
+ * Copyright (c) 2015-2016 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <stdlib.h>
+#include <mruby.h>
+#include <mruby/array.h>
+#include <mruby/error.h>
+#include <mruby/string.h>
+#include "h2o/mruby_.h"
+#include "embedded.c.h"
+
+struct st_h2o_mruby_chunked_t {
+    h2o_doublebuffer_t sending;
+    size_t bytes_left; /* SIZE_MAX indicates that the number is undermined */
+    enum { H2O_MRUBY_CHUNKED_TYPE_CALLBACK, H2O_MRUBY_CHUNKED_TYPE_SHORTCUT } type;
+    union {
+        struct {
+            h2o_buffer_t *receiving;
+            mrb_value body_obj; /* becomes nil on eos */
+        } callback;
+        struct {
+            h2o_mruby_http_request_context_t *client;
+            h2o_buffer_t *remaining;
+        } shortcut;
+    };
+};
+
+static void do_send(h2o_mruby_generator_t *generator, h2o_buffer_t **input, int is_final)
+{
+    h2o_mruby_chunked_t *chunked = generator->chunked;
+
+    assert(chunked->sending.bytes_inflight == 0);
+
+    h2o_iovec_t buf = h2o_doublebuffer_prepare(&chunked->sending, input, generator->req->preferred_chunk_size);
+    size_t bufcnt = 1;
+
+    if (is_final && buf.len == chunked->sending.buf->size && (*input)->size == 0) {
+        if (buf.len == 0)
+            --bufcnt;
+        /* terminate the H1 connection if the length of content served did not match the value sent in content-length header */
+        if (chunked->bytes_left != SIZE_MAX && chunked->bytes_left != 0)
+            generator->req->http1_is_persistent = 0;
+    } else {
+        if (buf.len == 0)
+            return;
+        is_final = 0;
+    }
+
+    h2o_send(generator->req, &buf, bufcnt, is_final ? H2O_SEND_STATE_FINAL : H2O_SEND_STATE_IN_PROGRESS);
+}
+
+static void do_proceed(h2o_generator_t *_generator, h2o_req_t *req)
+{
+    h2o_mruby_generator_t *generator = (void *)_generator;
+    h2o_mruby_chunked_t *chunked = generator->chunked;
+    h2o_buffer_t **input;
+    int is_final;
+
+    h2o_doublebuffer_consume(&chunked->sending);
+
+    switch (chunked->type) {
+    case H2O_MRUBY_CHUNKED_TYPE_CALLBACK:
+        input = &chunked->callback.receiving;
+        is_final = mrb_nil_p(chunked->callback.body_obj);
+        break;
+    case H2O_MRUBY_CHUNKED_TYPE_SHORTCUT:
+        if (chunked->shortcut.client != NULL) {
+            input = h2o_mruby_http_peek_content(chunked->shortcut.client, &is_final);
+            assert(!is_final);
+        } else {
+            input = &chunked->shortcut.remaining;
+            is_final = 1;
+        }
+        break;
+    default:
+        h2o_fatal("unexpected type");
+        break;
+    }
+
+    do_send(generator, input, is_final);
+}
+
+static void on_shortcut_notify(h2o_mruby_generator_t *generator)
+{
+    h2o_mruby_chunked_t *chunked = generator->chunked;
+    int is_final;
+    h2o_buffer_t **input = h2o_mruby_http_peek_content(chunked->shortcut.client, &is_final);
+
+    if (chunked->bytes_left != SIZE_MAX) {
+        if (chunked->bytes_left < (*input)->size)
+            (*input)->size = chunked->bytes_left; /* trim data too long */
+        chunked->bytes_left -= (*input)->size;
+    }
+
+    /* if final, steal socket input buffer to shortcut.remaining, and reset pointer to client */
+    if (is_final) {
+        chunked->shortcut.remaining = *input;
+        h2o_buffer_init(input, &h2o_socket_buffer_prototype);
+        input = &chunked->shortcut.remaining;
+        chunked->shortcut.client = NULL;
+    }
+
+    if (chunked->sending.bytes_inflight == 0)
+        do_send(generator, input, is_final);
+}
+
+static void close_body_obj(h2o_mruby_generator_t *generator)
+{
+    h2o_mruby_chunked_t *chunked = generator->chunked;
+    mrb_state *mrb = generator->ctx->shared->mrb;
+
+    if (!mrb_nil_p(chunked->callback.body_obj)) {
+        /* call close and throw away error */
+        if (mrb_respond_to(mrb, chunked->callback.body_obj, generator->ctx->shared->symbols.sym_close))
+            mrb_funcall_argv(mrb, chunked->callback.body_obj, generator->ctx->shared->symbols.sym_close, 0, NULL);
+        mrb->exc = NULL;
+        mrb_gc_unregister(mrb, chunked->callback.body_obj);
+        chunked->callback.body_obj = mrb_nil_value();
+    }
+}
+
+mrb_value h2o_mruby_send_chunked_init(h2o_mruby_generator_t *generator, mrb_value body)
+{
+    h2o_mruby_chunked_t *chunked = h2o_mem_alloc_pool(&generator->req->pool, sizeof(*chunked));
+    h2o_doublebuffer_init(&chunked->sending, &h2o_socket_buffer_prototype);
+    chunked->bytes_left = h2o_memis(generator->req->method.base, generator->req->method.len, H2O_STRLIT("HEAD"))
+                              ? 0
+                              : generator->req->res.content_length;
+    generator->super.proceed = do_proceed;
+    generator->chunked = chunked;
+
+    if ((chunked->shortcut.client = h2o_mruby_http_set_shortcut(generator->ctx->shared->mrb, body, on_shortcut_notify)) != NULL) {
+        chunked->type = H2O_MRUBY_CHUNKED_TYPE_SHORTCUT;
+        chunked->shortcut.remaining = NULL;
+        on_shortcut_notify(generator);
+        return mrb_nil_value();
+    } else {
+        chunked->type = H2O_MRUBY_CHUNKED_TYPE_CALLBACK;
+        h2o_buffer_init(&chunked->callback.receiving, &h2o_socket_buffer_prototype);
+        mrb_gc_register(generator->ctx->shared->mrb, body);
+        chunked->callback.body_obj = body;
+        return mrb_ary_entry(generator->ctx->shared->constants, H2O_MRUBY_CHUNKED_PROC_EACH_TO_FIBER);
+    }
+}
+
+void h2o_mruby_send_chunked_dispose(h2o_mruby_generator_t *generator)
+{
+    h2o_mruby_chunked_t *chunked = generator->chunked;
+
+    h2o_doublebuffer_dispose(&chunked->sending);
+
+    switch (chunked->type) {
+    case H2O_MRUBY_CHUNKED_TYPE_CALLBACK:
+        h2o_buffer_dispose(&chunked->callback.receiving);
+        close_body_obj(generator);
+        break;
+    case H2O_MRUBY_CHUNKED_TYPE_SHORTCUT:
+        /* note: no need to free reference from chunked->client, since it is disposed at the same moment */
+        if (chunked->shortcut.remaining != NULL)
+            h2o_buffer_dispose(&chunked->shortcut.remaining);
+        break;
+    }
+}
+
+static mrb_value check_precond(mrb_state *mrb, h2o_mruby_generator_t *generator)
+{
+    if (generator == NULL || generator->req == NULL)
+        return mrb_exc_new_str_lit(mrb, E_RUNTIME_ERROR, "downstream HTTP closed");
+    if (generator->req->_generator == NULL)
+        return mrb_exc_new_str_lit(mrb, E_RUNTIME_ERROR, "cannot send chunk before sending headers");
+    return mrb_nil_value();
+}
+
+static mrb_value send_chunked_method(mrb_state *mrb, mrb_value self)
+{
+    h2o_mruby_generator_t *generator = h2o_mruby_current_generator;
+    const char *s;
+    mrb_int len;
+
+    /* parse args */
+    mrb_get_args(mrb, "s", &s, &len);
+
+    { /* precond check */
+        mrb_value exc = check_precond(mrb, generator);
+        if (!mrb_nil_p(exc))
+            mrb_exc_raise(mrb, exc);
+    }
+
+    /* append to send buffer, and send out immediately if necessary */
+    if (len != 0) {
+        h2o_mruby_chunked_t *chunked = generator->chunked;
+        if (chunked->bytes_left != SIZE_MAX) {
+            if (len > chunked->bytes_left)
+                len = chunked->bytes_left;
+            chunked->bytes_left -= len;
+        }
+        if (len != 0) {
+            h2o_buffer_reserve(&chunked->callback.receiving, len);
+            memcpy(chunked->callback.receiving->bytes + chunked->callback.receiving->size, s, len);
+            chunked->callback.receiving->size += len;
+            if (chunked->sending.bytes_inflight == 0)
+                do_send(generator, &chunked->callback.receiving, 0);
+        }
+    }
+
+    return mrb_nil_value();
+}
+
+mrb_value h2o_mruby_send_chunked_eos_callback(h2o_mruby_generator_t *generator, mrb_value receiver, mrb_value input,
+                                              int *next_action)
+{
+    mrb_state *mrb = generator->ctx->shared->mrb;
+
+    { /* precond check */
+        mrb_value exc = check_precond(mrb, generator);
+        if (!mrb_nil_p(exc))
+            return exc;
+    }
+
+    h2o_mruby_send_chunked_close(generator);
+
+    *next_action = H2O_MRUBY_CALLBACK_NEXT_ACTION_STOP;
+    return mrb_nil_value();
+}
+
+void h2o_mruby_send_chunked_close(h2o_mruby_generator_t *generator)
+{
+    h2o_mruby_chunked_t *chunked = generator->chunked;
+
+    /* run_fiber will never be called once we enter the fast path, and therefore this function will never get called in that case */
+    assert(chunked->type == H2O_MRUBY_CHUNKED_TYPE_CALLBACK);
+
+    close_body_obj(generator);
+
+    if (chunked->sending.bytes_inflight == 0)
+        do_send(generator, &chunked->callback.receiving, 1);
+}
+
+void h2o_mruby_send_chunked_init_context(h2o_mruby_shared_context_t *shared_ctx)
+{
+    mrb_state *mrb = shared_ctx->mrb;
+
+    h2o_mruby_eval_expr(mrb, H2O_MRUBY_CODE_CHUNKED);
+    h2o_mruby_assert(mrb);
+
+    mrb_define_method(mrb, mrb->kernel_module, "_h2o_send_chunk", send_chunked_method, MRB_ARGS_ARG(1, 0));
+    h2o_mruby_define_callback(mrb, "_h2o_send_chunk_eos", H2O_MRUBY_CALLBACK_ID_SEND_CHUNKED_EOS);
+
+    mrb_ary_set(mrb, shared_ctx->constants, H2O_MRUBY_CHUNKED_PROC_EACH_TO_FIBER,
+                mrb_funcall(mrb, mrb_top_self(mrb), "_h2o_chunked_proc_each_to_fiber", 0));
+    h2o_mruby_assert(mrb);
+}
diff --git a/debian/vendor-h2o/lib/handler/mruby/embedded.c.h b/debian/vendor-h2o/lib/handler/mruby/embedded.c.h
new file mode 100644
index 0000000..db4bb23
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/mruby/embedded.c.h
@@ -0,0 +1,111 @@
+/*
+ * DO NOT EDIT! generated by embed_mruby_code.pl
+ * Please refer to the respective source files for copyright information.
+ */
+
+/* lib/handler/mruby/embedded/core.rb */
+#define H2O_MRUBY_CODE_CORE                                                                                                        \
+    "module Kernel\n"                                                                                                              \
+    "  def _h2o_define_callback(name, id)\n"                                                                                       \
+    "    Kernel.define_method(name) do |*args|\n"                                                                                  \
+    "      ret = Fiber.yield([ id, _h2o_create_resumer(), args ])\n"                                                               \
+    "      if ret.kind_of? Exception\n"                                                                                            \
+    "        raise ret\n"                                                                                                          \
+    "      end\n"                                                                                                                  \
+    "      ret\n"                                                                                                                  \
+    "    end\n"                                                                                                                    \
+    "  end\n"                                                                                                                      \
+    "  def _h2o_create_resumer()\n"                                                                                                \
+    "    me = Fiber.current\n"                                                                                                     \
+    "    Proc.new do |v|\n"                                                                                                        \
+    "    me.resume(v)\n"                                                                                                           \
+    "    end\n"                                                                                                                    \
+    "  end\n"                                                                                                                      \
+    "  def _h2o_proc_each_to_array()\n"                                                                                            \
+    "    Proc.new do |o|\n"                                                                                                        \
+    "      a = []\n"                                                                                                               \
+    "      o.each do |x|\n"                                                                                                        \
+    "        a << x\n"                                                                                                             \
+    "      end\n"                                                                                                                  \
+    "      a\n"                                                                                                                    \
+    "    end\n"                                                                                                                    \
+    "  end\n"                                                                                                                      \
+    "  def _h2o_proc_app_to_fiber()\n"                                                                                             \
+    "    Proc.new do |app|\n"                                                                                                      \
+    "      cached = nil\n"                                                                                                         \
+    "      Proc.new do |req|\n"                                                                                                    \
+    "        fiber = cached\n"                                                                                                     \
+    "        cached = nil\n"                                                                                                       \
+    "        if !fiber\n"                                                                                                          \
+    "          fiber = Fiber.new do\n"                                                                                             \
+    "            self_fiber = Fiber.current\n"                                                                                     \
+    "            req = Fiber.yield\n"                                                                                              \
+    "            while 1\n"                                                                                                        \
+    "              begin\n"                                                                                                        \
+    "                while 1\n"                                                                                                    \
+    "                  resp = app.call(req)\n"                                                                                     \
+    "                  cached = self_fiber\n"                                                                                      \
+    "                  req = Fiber.yield(resp)\n"                                                                                  \
+    "                end\n"                                                                                                        \
+    "              rescue => e\n"                                                                                                  \
+    "                cached = self_fiber\n"                                                                                        \
+    "                req = Fiber.yield([-1, e])\n"                                                                                 \
+    "              end\n"                                                                                                          \
+    "            end\n"                                                                                                            \
+    "          end\n"                                                                                                              \
+    "          fiber.resume\n"                                                                                                     \
+    "        end\n"                                                                                                                \
+    "        fiber.resume(req)\n"                                                                                                  \
+    "      end\n"                                                                                                                  \
+    "    end\n"                                                                                                                    \
+    "  end\n"                                                                                                                      \
+    "end\n"
+
+/* lib/handler/mruby/embedded/http_request.rb */
+#define H2O_MRUBY_CODE_HTTP_REQUEST                                                                                                \
+    "module H2O\n"                                                                                                                 \
+    "  class HttpRequest\n"                                                                                                        \
+    "    def join\n"                                                                                                               \
+    "      if !@resp\n"                                                                                                            \
+    "        @resp = _h2o__http_join_response(self)\n"                                                                             \
+    "      end\n"                                                                                                                  \
+    "      @resp\n"                                                                                                                \
+    "    end\n"                                                                                                                    \
+    "    def _set_response(resp)\n"                                                                                                \
+    "      @resp = resp\n"                                                                                                         \
+    "    end\n"                                                                                                                    \
+    "  end\n"                                                                                                                      \
+    "  class HttpInputStream\n"                                                                                                    \
+    "    def each\n"                                                                                                               \
+    "      while c = _h2o__http_fetch_chunk(self)\n"                                                                               \
+    "        yield c\n"                                                                                                            \
+    "      end\n"                                                                                                                  \
+    "    end\n"                                                                                                                    \
+    "    def join\n"                                                                                                               \
+    "      s = \"\"\n"                                                                                                             \
+    "      each do |c|\n"                                                                                                          \
+    "        s << c\n"                                                                                                             \
+    "      end\n"                                                                                                                  \
+    "      s\n"                                                                                                                    \
+    "    end\n"                                                                                                                    \
+    "    class Empty < HttpInputStream\n"                                                                                          \
+    "      def each; end\n"                                                                                                        \
+    "    end\n"                                                                                                                    \
+    "  end\n"                                                                                                                      \
+    "end\n"
+
+/* lib/handler/mruby/embedded/chunked.rb */
+#define H2O_MRUBY_CODE_CHUNKED                                                                                                     \
+    "module Kernel\n"                                                                                                              \
+    "  def _h2o_chunked_proc_each_to_fiber()\n"                                                                                    \
+    "    Proc.new do |src|\n"                                                                                                      \
+    "      fiber = Fiber.new do\n"                                                                                                 \
+    "        src.each do |chunk|\n"                                                                                                \
+    "          _h2o_send_chunk(chunk)\n"                                                                                           \
+    "        end\n"                                                                                                                \
+    "        _h2o_send_chunk_eos()\n"                                                                                              \
+    "      end\n"                                                                                                                  \
+    "      fiber.resume\n"                                                                                                         \
+    "    end\n"                                                                                                                    \
+    "  end\n"                                                                                                                      \
+    "end\n"
diff --git a/debian/vendor-h2o/lib/handler/mruby/embedded/chunked.rb b/debian/vendor-h2o/lib/handler/mruby/embedded/chunked.rb
new file mode 100644
index 0000000..ff4e578
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/mruby/embedded/chunked.rb
@@ -0,0 +1,35 @@
+# Copyright (c) 2014 DeNA Co., Ltd.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+
+module Kernel
+
+  def _h2o_chunked_proc_each_to_fiber()
+    Proc.new do |src|
+      fiber = Fiber.new do
+        src.each do |chunk|
+          _h2o_send_chunk(chunk)
+        end
+        _h2o_send_chunk_eos()
+      end
+      fiber.resume
+    end
+  end
+
+end
diff --git a/debian/vendor-h2o/lib/handler/mruby/embedded/core.rb b/debian/vendor-h2o/lib/handler/mruby/embedded/core.rb
new file mode 100644
index 0000000..e62583d
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/mruby/embedded/core.rb
@@ -0,0 +1,81 @@
+# Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku, Ryosuke Matsumoto,
+#                         Masayoshi Takahashi
+# 
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+# 
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+
+module Kernel
+
+  def _h2o_define_callback(name, id)
+    Kernel.define_method(name) do |*args|
+      ret = Fiber.yield([ id, _h2o_create_resumer(), args ])
+      if ret.kind_of? Exception
+        raise ret
+      end
+      ret
+    end
+  end
+
+  def _h2o_create_resumer()
+    me = Fiber.current
+    Proc.new do |v|
+    me.resume(v)
+    end
+  end
+
+  def _h2o_proc_each_to_array()
+    Proc.new do |o|
+      a = []
+      o.each do |x|
+        a << x
+      end
+      a
+    end
+  end
+
+  def _h2o_proc_app_to_fiber()
+    Proc.new do |app|
+      cached = nil
+      Proc.new do |req|
+        fiber = cached
+        cached = nil
+        if !fiber
+          fiber = Fiber.new do
+            self_fiber = Fiber.current
+            req = Fiber.yield
+            while 1
+              begin
+                while 1
+                  resp = app.call(req)
+                  cached = self_fiber
+                  req = Fiber.yield(resp)
+                end
+              rescue => e
+                cached = self_fiber
+                req = Fiber.yield([-1, e])
+              end
+            end
+          end
+          fiber.resume
+        end
+        fiber.resume(req)
+      end
+    end
+  end
+
+end
diff --git a/debian/vendor-h2o/lib/handler/mruby/embedded/http_request.rb b/debian/vendor-h2o/lib/handler/mruby/embedded/http_request.rb
new file mode 100644
index 0000000..3f3247a
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/mruby/embedded/http_request.rb
@@ -0,0 +1,54 @@
+# Copyright (c) 2015-2016 DeNA Co., Ltd., Kazuho Oku
+# 
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+# 
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+
+module H2O
+
+  class HttpRequest
+    def join
+      if !@resp
+        @resp = _h2o__http_join_response(self)
+      end
+      @resp
+    end
+    def _set_response(resp)
+      @resp = resp
+    end
+  end
+
+  class HttpInputStream
+    def each
+      while c = _h2o__http_fetch_chunk(self)
+        yield c
+      end
+    end
+    def join
+      s = ""
+      each do |c|
+        s << c
+      end
+      s
+    end
+
+    class Empty < HttpInputStream
+      def each; end
+    end
+  end
+
+end
diff --git a/debian/vendor-h2o/lib/handler/mruby/http_request.c b/debian/vendor-h2o/lib/handler/mruby/http_request.c
new file mode 100644
index 0000000..964d03f
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/mruby/http_request.c
@@ -0,0 +1,500 @@
+/*
+ * Copyright (c) 2015-2016 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <mruby.h>
+#include <mruby/array.h>
+#include <mruby/error.h>
+#include <mruby/hash.h>
+#include <mruby/string.h>
+#include <mruby_input_stream.h>
+#include "h2o/mruby_.h"
+#include "embedded.c.h"
+
+struct st_h2o_mruby_http_request_context_t {
+    h2o_mruby_generator_t *generator;
+    h2o_http1client_t *client;
+    mrb_value receiver;
+    struct {
+        h2o_buffer_t *buf;
+        h2o_iovec_t body; /* body.base != NULL indicates that post content exists (and the length MAY be zero) */
+        unsigned method_is_head : 1;
+        unsigned has_transfer_encoding : 1;
+    } req;
+    struct {
+        h2o_buffer_t *after_closed; /* when client becomes NULL, rest of the data will be stored to this pointer */
+        int has_content;
+    } resp;
+    struct {
+        mrb_value request;
+        mrb_value input_stream;
+    } refs;
+    void (*shortcut_notify_cb)(h2o_mruby_generator_t *generator);
+};
+
+static void on_gc_dispose_request(mrb_state *mrb, void *_ctx)
+{
+    struct st_h2o_mruby_http_request_context_t *ctx = _ctx;
+    if (ctx != NULL)
+        ctx->refs.request = mrb_nil_value();
+}
+
+const static struct mrb_data_type request_type = {"http_request", on_gc_dispose_request};
+
+static void on_gc_dispose_input_stream(mrb_state *mrb, void *_ctx)
+{
+    struct st_h2o_mruby_http_request_context_t *ctx = _ctx;
+    if (ctx != NULL)
+        ctx->refs.input_stream = mrb_nil_value();
+}
+
+const static struct mrb_data_type input_stream_type = {"http_input_stream", on_gc_dispose_input_stream};
+
+static mrb_value create_downstream_closed_exception(mrb_state *mrb)
+{
+    return mrb_exc_new_str_lit(mrb, E_RUNTIME_ERROR, "downstream HTTP closed");
+}
+
+static mrb_value detach_receiver(struct st_h2o_mruby_http_request_context_t *ctx)
+{
+    mrb_value ret = ctx->receiver;
+    assert(!mrb_nil_p(ret));
+    ctx->receiver = mrb_nil_value();
+    return ret;
+}
+
+static void on_dispose(void *_ctx)
+{
+    struct st_h2o_mruby_http_request_context_t *ctx = _ctx;
+
+    /* clear the refs */
+    if (ctx->client != NULL) {
+        h2o_http1client_cancel(ctx->client);
+        ctx->client = NULL;
+    }
+    if (!mrb_nil_p(ctx->refs.request))
+        DATA_PTR(ctx->refs.request) = NULL;
+    if (!mrb_nil_p(ctx->refs.input_stream))
+        DATA_PTR(ctx->refs.input_stream) = NULL;
+
+    /* clear bufs */
+    h2o_buffer_dispose(&ctx->req.buf);
+    h2o_buffer_dispose(&ctx->resp.after_closed);
+
+    /* notify the app, if it is waiting to hear from us */
+    if (!mrb_nil_p(ctx->receiver)) {
+        mrb_state *mrb = ctx->generator->ctx->shared->mrb;
+        int gc_arena = mrb_gc_arena_save(mrb);
+        h2o_mruby_run_fiber(ctx->generator, detach_receiver(ctx), create_downstream_closed_exception(mrb), NULL);
+        mrb_gc_arena_restore(mrb, gc_arena);
+    }
+}
+
+static void post_response(struct st_h2o_mruby_http_request_context_t *ctx, int status, const h2o_header_t *headers_sorted,
+                          size_t num_headers)
+{
+    mrb_state *mrb = ctx->generator->ctx->shared->mrb;
+    int gc_arena = mrb_gc_arena_save(mrb);
+    size_t i;
+
+    mrb_value resp = mrb_ary_new_capa(mrb, 3);
+
+    /* set status */
+    mrb_ary_set(mrb, resp, 0, mrb_fixnum_value(status));
+
+    /* set headers */
+    mrb_value headers_hash = mrb_hash_new_capa(mrb, (int)num_headers);
+    for (i = 0; i < num_headers; ++i) {
+        /* skip the headers, we determine the eos! */
+        if (h2o_memis(headers_sorted[i].name, headers_sorted[i].name->len, H2O_STRLIT("content-length")) ||
+            h2o_memis(headers_sorted[i].name, headers_sorted[i].name->len, H2O_STRLIT("transfer-encoding")))
+            continue;
+        /* build and set the hash entry */
+        mrb_value k = mrb_str_new(mrb, headers_sorted[i].name->base, headers_sorted[i].name->len);
+        mrb_value v = mrb_str_new(mrb, headers_sorted[i].value.base, headers_sorted[i].value.len);
+        while (i + 1 < num_headers && h2o_memis(headers_sorted[i].name->base, headers_sorted[i].name->len,
+                                                headers_sorted[i + 1].name->base, headers_sorted[i + 1].name->len)) {
+            ++i;
+            v = mrb_str_cat_lit(mrb, v, "\n");
+            v = mrb_str_cat(mrb, v, headers_sorted[i].value.base, headers_sorted[i].value.len);
+        }
+        mrb_hash_set(mrb, headers_hash, k, v);
+    }
+    mrb_ary_set(mrb, resp, 1, headers_hash);
+
+    /* set input stream */
+    assert(mrb_nil_p(ctx->refs.input_stream));
+    mrb_value input_stream_class;
+    if (ctx->req.method_is_head || status == 101 || status == 204 || status == 304) {
+        input_stream_class = mrb_ary_entry(ctx->generator->ctx->shared->constants, H2O_MRUBY_HTTP_EMPTY_INPUT_STREAM_CLASS);
+    } else {
+        input_stream_class = mrb_ary_entry(ctx->generator->ctx->shared->constants, H2O_MRUBY_HTTP_INPUT_STREAM_CLASS);
+    }
+    ctx->refs.input_stream = h2o_mruby_create_data_instance(mrb, input_stream_class, ctx, &input_stream_type);
+    mrb_ary_set(mrb, resp, 2, ctx->refs.input_stream);
+
+    if (mrb_nil_p(ctx->receiver)) {
+        /* is async */
+        mrb_funcall(mrb, ctx->refs.request, "_set_response", 1, resp);
+        if (mrb->exc != NULL) {
+            fprintf(stderr, "_set_response failed\n");
+            abort();
+        }
+    } else {
+        /* send response to the waiting receiver */
+        h2o_mruby_run_fiber(ctx->generator, detach_receiver(ctx), resp, NULL);
+    }
+
+    mrb_gc_arena_restore(mrb, gc_arena);
+}
+
+static void post_error(struct st_h2o_mruby_http_request_context_t *ctx, const char *errstr)
+{
+    static const h2o_header_t headers_sorted[] = {
+        {&H2O_TOKEN_CONTENT_TYPE->buf, NULL, {H2O_STRLIT("text/plain; charset=utf-8")}},
+    };
+
+    ctx->client = NULL;
+    size_t errstr_len = strlen(errstr);
+    h2o_buffer_reserve(&ctx->resp.after_closed, errstr_len);
+    memcpy(ctx->resp.after_closed->bytes + ctx->resp.after_closed->size, errstr, errstr_len);
+    ctx->resp.after_closed->size += errstr_len;
+    ctx->resp.has_content = 1;
+
+    post_response(ctx, 500, headers_sorted, sizeof(headers_sorted) / sizeof(headers_sorted[0]));
+}
+
+static mrb_value build_chunk(struct st_h2o_mruby_http_request_context_t *ctx)
+{
+    mrb_value chunk;
+
+    assert(ctx->resp.has_content);
+
+    if (ctx->client != NULL) {
+        assert(ctx->client->sock->input->size != 0);
+        chunk = mrb_str_new(ctx->generator->ctx->shared->mrb, ctx->client->sock->input->bytes, ctx->client->sock->input->size);
+        h2o_buffer_consume(&ctx->client->sock->input, ctx->client->sock->input->size);
+        ctx->resp.has_content = 0;
+    } else {
+        if (ctx->resp.after_closed->size == 0) {
+            chunk = mrb_nil_value();
+        } else {
+            chunk = mrb_str_new(ctx->generator->ctx->shared->mrb, ctx->resp.after_closed->bytes, ctx->resp.after_closed->size);
+            h2o_buffer_consume(&ctx->resp.after_closed, ctx->resp.after_closed->size);
+        }
+        /* has_content is retained as true, so that repeated calls will return nil immediately */
+    }
+
+    return chunk;
+}
+
+static int on_body(h2o_http1client_t *client, const char *errstr)
+{
+    struct st_h2o_mruby_http_request_context_t *ctx = client->data;
+
+    if (errstr != NULL) {
+        h2o_buffer_t *tmp = ctx->resp.after_closed;
+        ctx->resp.after_closed = client->sock->input;
+        client->sock->input = tmp;
+        ctx->client = NULL;
+        ctx->resp.has_content = 1;
+    } else if (client->sock->input->size != 0) {
+        ctx->resp.has_content = 1;
+    }
+
+    if (ctx->resp.has_content) {
+        if (ctx->shortcut_notify_cb != NULL) {
+            ctx->shortcut_notify_cb(ctx->generator);
+        } else if (!mrb_nil_p(ctx->receiver)) {
+            int gc_arena = mrb_gc_arena_save(ctx->generator->ctx->shared->mrb);
+            mrb_value chunk = build_chunk(ctx);
+            h2o_mruby_run_fiber(ctx->generator, detach_receiver(ctx), chunk, NULL);
+            mrb_gc_arena_restore(ctx->generator->ctx->shared->mrb, gc_arena);
+        }
+    }
+    return 0;
+}
+
+static int headers_sort_cb(const void *_x, const void *_y)
+{
+    const h2o_header_t *x = _x, *y = _y;
+
+    if (x->name->len < y->name->len)
+        return -1;
+    if (x->name->len > y->name->len)
+        return 1;
+    return memcmp(x->name->base, y->name->base, x->name->len);
+}
+
+static h2o_http1client_body_cb on_head(h2o_http1client_t *client, const char *errstr, int minor_version, int status,
+                                       h2o_iovec_t msg, h2o_header_t *headers, size_t num_headers, int rlen)
+{
+    struct st_h2o_mruby_http_request_context_t *ctx = client->data;
+
+    if (errstr != NULL) {
+        if (errstr != h2o_http1client_error_is_eos) {
+            /* error */
+            post_error(ctx, errstr);
+            return NULL;
+        }
+        /* closed without body */
+        ctx->client = NULL;
+    }
+
+    qsort(headers, num_headers, sizeof(headers[0]), headers_sort_cb);
+    post_response(ctx, status, headers, num_headers);
+    return on_body;
+}
+
+static h2o_http1client_head_cb on_connect(h2o_http1client_t *client, const char *errstr, h2o_iovec_t **reqbufs, size_t *reqbufcnt,
+                                          int *method_is_head)
+{
+    struct st_h2o_mruby_http_request_context_t *ctx = client->data;
+
+    if (errstr != NULL) {
+        post_error(ctx, errstr);
+        return NULL;
+    }
+
+    *reqbufs = h2o_mem_alloc_pool(&ctx->generator->req->pool, sizeof(**reqbufs) * 2);
+    **reqbufs = h2o_iovec_init(ctx->req.buf->bytes, ctx->req.buf->size);
+    *reqbufcnt = 1;
+    if (ctx->req.body.base != NULL)
+        (*reqbufs)[(*reqbufcnt)++] = ctx->req.body;
+    *method_is_head = ctx->req.method_is_head;
+    return on_head;
+}
+
+static inline void append_to_buffer(h2o_buffer_t **buf, const void *src, size_t len)
+{
+    memcpy((*buf)->bytes + (*buf)->size, src, len);
+    (*buf)->size += len;
+}
+
+static int flatten_request_header(h2o_mruby_context_t *handler_ctx, h2o_iovec_t name, h2o_iovec_t value, void *_ctx)
+{
+    struct st_h2o_mruby_http_request_context_t *ctx = _ctx;
+
+    /* ignore certain headers */
+    if (h2o_lcstris(name.base, name.len, H2O_STRLIT("content-length")) ||
+        h2o_lcstris(name.base, name.len, H2O_STRLIT("connection")) || h2o_lcstris(name.base, name.len, H2O_STRLIT("host")))
+        return 0;
+
+    /* mark the existence of transfer-encoding in order to prevent us from adding content-length header */
+    if (h2o_lcstris(name.base, name.len, H2O_STRLIT("transfer-encoding")))
+        ctx->req.has_transfer_encoding = 1;
+
+    h2o_buffer_reserve(&ctx->req.buf, name.len + value.len + sizeof(": \r\n") - 1);
+    append_to_buffer(&ctx->req.buf, name.base, name.len);
+    append_to_buffer(&ctx->req.buf, H2O_STRLIT(": "));
+    append_to_buffer(&ctx->req.buf, value.base, value.len);
+    append_to_buffer(&ctx->req.buf, H2O_STRLIT("\r\n"));
+
+    return 0;
+}
+
+static mrb_value http_request_method(mrb_state *mrb, mrb_value self)
+{
+    h2o_mruby_generator_t *generator;
+    struct st_h2o_mruby_http_request_context_t *ctx;
+    const char *arg_url;
+    mrb_int arg_url_len;
+    mrb_value arg_hash;
+    h2o_iovec_t method;
+    h2o_url_t url;
+
+    /* parse args */
+    arg_hash = mrb_nil_value();
+    mrb_get_args(mrb, "s|H", &arg_url, &arg_url_len, &arg_hash);
+
+    /* precond check */
+    if ((generator = h2o_mruby_current_generator) == NULL || generator->req == NULL)
+        mrb_exc_raise(mrb, create_downstream_closed_exception(mrb));
+
+    /* allocate context and initialize */
+    ctx = h2o_mem_alloc_shared(&generator->req->pool, sizeof(*ctx), on_dispose);
+    memset(ctx, 0, sizeof(*ctx));
+    ctx->generator = generator;
+    ctx->receiver = mrb_nil_value();
+    h2o_buffer_init(&ctx->req.buf, &h2o_socket_buffer_prototype);
+    h2o_buffer_init(&ctx->resp.after_closed, &h2o_socket_buffer_prototype);
+    ctx->refs.request = mrb_nil_value();
+    ctx->refs.input_stream = mrb_nil_value();
+
+    /* uri */
+    if (h2o_url_parse(arg_url, arg_url_len, &url) != 0)
+        mrb_raise(mrb, E_ARGUMENT_ERROR, "invaild URL");
+
+    /* method */
+    method = h2o_iovec_init(H2O_STRLIT("GET"));
+    if (mrb_hash_p(arg_hash)) {
+        mrb_value t = mrb_hash_get(mrb, arg_hash, mrb_symbol_value(generator->ctx->shared->symbols.sym_method));
+        if (!mrb_nil_p(t)) {
+            t = mrb_str_to_str(mrb, t);
+            method = h2o_iovec_init(RSTRING_PTR(t), RSTRING_LEN(t));
+            if (h2o_memis(method.base, method.len, H2O_STRLIT("HEAD"))) {
+                ctx->req.method_is_head = 1;
+            }
+        }
+    }
+
+    /* start building the request */
+    h2o_buffer_reserve(&ctx->req.buf, method.len + 1);
+    append_to_buffer(&ctx->req.buf, method.base, method.len);
+    append_to_buffer(&ctx->req.buf, H2O_STRLIT(" "));
+    h2o_buffer_reserve(&ctx->req.buf,
+                       url.path.len + url.authority.len + sizeof(" HTTP/1.1\r\nConnection: close\r\nHost: \r\n") - 1);
+    append_to_buffer(&ctx->req.buf, url.path.base, url.path.len);
+    append_to_buffer(&ctx->req.buf, H2O_STRLIT(" HTTP/1.1\r\nConnection: close\r\nHost: "));
+    append_to_buffer(&ctx->req.buf, url.authority.base, url.authority.len);
+    append_to_buffer(&ctx->req.buf, H2O_STRLIT("\r\n"));
+
+    /* headers */
+    if (mrb_hash_p(arg_hash)) {
+        mrb_value headers = mrb_hash_get(mrb, arg_hash, mrb_symbol_value(generator->ctx->shared->symbols.sym_headers));
+        if (!mrb_nil_p(headers)) {
+            if (h2o_mruby_iterate_headers(generator->ctx, headers, flatten_request_header, ctx) != 0) {
+                mrb_value exc = mrb_obj_value(mrb->exc);
+                mrb->exc = NULL;
+                mrb_exc_raise(mrb, exc);
+            }
+        }
+    }
+    /* body */
+    if (mrb_hash_p(arg_hash)) {
+        mrb_value body = mrb_hash_get(mrb, arg_hash, mrb_symbol_value(generator->ctx->shared->symbols.sym_body));
+        if (!mrb_nil_p(body)) {
+            if (mrb_obj_eq(mrb, body, generator->rack_input)) {
+                /* fast path */
+                mrb_int pos;
+                mrb_input_stream_get_data(mrb, body, NULL, NULL, &pos, NULL, NULL);
+                ctx->req.body = generator->req->entity;
+                ctx->req.body.base += pos;
+                ctx->req.body.len -= pos;
+            } else {
+                if (!mrb_string_p(body)) {
+                    body = mrb_funcall(mrb, body, "read", 0);
+                    if (!mrb_string_p(body))
+                        mrb_raise(mrb, E_ARGUMENT_ERROR, "body.read did not return string");
+                }
+                ctx->req.body = h2o_strdup(&ctx->generator->req->pool, RSTRING_PTR(body), RSTRING_LEN(body));
+            }
+            if (!ctx->req.has_transfer_encoding) {
+                char buf[64];
+                size_t l = (size_t)sprintf(buf, "content-length: %zu\r\n", ctx->req.body.len);
+                h2o_buffer_reserve(&ctx->req.buf, l);
+                append_to_buffer(&ctx->req.buf, buf, l);
+            }
+        }
+    }
+
+    h2o_buffer_reserve(&ctx->req.buf, 2);
+    append_to_buffer(&ctx->req.buf, H2O_STRLIT("\r\n"));
+
+    /* build request and connect */
+    ctx->refs.request = h2o_mruby_create_data_instance(
+        mrb, mrb_ary_entry(generator->ctx->shared->constants, H2O_MRUBY_HTTP_REQUEST_CLASS), ctx, &request_type);
+    h2o_http1client_connect(&ctx->client, ctx, &generator->req->conn->ctx->proxy.client_ctx, url.host, h2o_url_get_port(&url),
+                            url.scheme == &H2O_URL_SCHEME_HTTPS, on_connect);
+
+    return ctx->refs.request;
+}
+
+mrb_value h2o_mruby_http_join_response_callback(h2o_mruby_generator_t *generator, mrb_value receiver, mrb_value args,
+                                                int *next_action)
+{
+    mrb_state *mrb = generator->ctx->shared->mrb;
+    struct st_h2o_mruby_http_request_context_t *ctx;
+
+    if (generator->req == NULL)
+        return create_downstream_closed_exception(mrb);
+
+    if ((ctx = mrb_data_check_get_ptr(mrb, mrb_ary_entry(args, 0), &request_type)) == NULL)
+        return mrb_exc_new_str_lit(mrb, E_ARGUMENT_ERROR, "HttpRequest#join wrong self");
+
+    ctx->receiver = receiver;
+    *next_action = H2O_MRUBY_CALLBACK_NEXT_ACTION_ASYNC;
+    return mrb_nil_value();
+}
+
+mrb_value h2o_mruby_http_fetch_chunk_callback(h2o_mruby_generator_t *generator, mrb_value receiver, mrb_value args,
+                                              int *next_action)
+{
+    mrb_state *mrb = generator->ctx->shared->mrb;
+    struct st_h2o_mruby_http_request_context_t *ctx;
+    mrb_value ret;
+
+    if (generator->req == NULL)
+        return create_downstream_closed_exception(mrb);
+
+    if ((ctx = mrb_data_check_get_ptr(mrb, mrb_ary_entry(args, 0), &input_stream_type)) == NULL)
+        return mrb_exc_new_str_lit(mrb, E_ARGUMENT_ERROR, "_HttpInputStream#each wrong self");
+
+    if (ctx->resp.has_content) {
+        ret = build_chunk(ctx);
+    } else {
+        ctx->receiver = receiver;
+        *next_action = H2O_MRUBY_CALLBACK_NEXT_ACTION_ASYNC;
+        ret = mrb_nil_value();
+    }
+
+    return ret;
+}
+
+h2o_mruby_http_request_context_t *h2o_mruby_http_set_shortcut(mrb_state *mrb, mrb_value obj, void (*cb)(h2o_mruby_generator_t *))
+{
+    struct st_h2o_mruby_http_request_context_t *ctx;
+
+    if ((ctx = mrb_data_check_get_ptr(mrb, obj, &input_stream_type)) == NULL)
+        return NULL;
+    ctx->shortcut_notify_cb = cb;
+    return ctx;
+}
+
+h2o_buffer_t **h2o_mruby_http_peek_content(h2o_mruby_http_request_context_t *ctx, int *is_final)
+{
+    *is_final = ctx->client == NULL;
+    return ctx->client != NULL && ctx->resp.has_content ? &ctx->client->sock->input : &ctx->resp.after_closed;
+}
+
+void h2o_mruby_http_request_init_context(h2o_mruby_shared_context_t *ctx)
+{
+    mrb_state *mrb = ctx->mrb;
+
+    h2o_mruby_eval_expr(mrb, H2O_MRUBY_CODE_HTTP_REQUEST);
+    h2o_mruby_assert(mrb);
+
+    struct RClass *module, *klass;
+    module = mrb_define_module(mrb, "H2O");
+
+    mrb_define_method(mrb, mrb->kernel_module, "http_request", http_request_method, MRB_ARGS_ARG(1, 2));
+
+    klass = mrb_class_get_under(mrb, module, "HttpRequest");
+    mrb_ary_set(mrb, ctx->constants, H2O_MRUBY_HTTP_REQUEST_CLASS, mrb_obj_value(klass));
+
+    klass = mrb_class_get_under(mrb, module, "HttpInputStream");
+    mrb_ary_set(mrb, ctx->constants, H2O_MRUBY_HTTP_INPUT_STREAM_CLASS, mrb_obj_value(klass));
+
+    klass = mrb_class_get_under(mrb, klass, "Empty");
+    mrb_ary_set(mrb, ctx->constants, H2O_MRUBY_HTTP_EMPTY_INPUT_STREAM_CLASS, mrb_obj_value(klass));
+
+    h2o_mruby_define_callback(mrb, "_h2o__http_join_response", H2O_MRUBY_CALLBACK_ID_HTTP_JOIN_RESPONSE);
+    h2o_mruby_define_callback(mrb, "_h2o__http_fetch_chunk", H2O_MRUBY_CALLBACK_ID_HTTP_FETCH_CHUNK);
+}
diff --git a/debian/vendor-h2o/lib/handler/proxy.c b/debian/vendor-h2o/lib/handler/proxy.c
new file mode 100644
index 0000000..1d87225
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/proxy.c
@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 2014,2015 DeNA Co., Ltd., Masahiro Nagano
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <sys/un.h>
+#include "h2o.h"
+#include "h2o/socketpool.h"
+
+struct rp_handler_t {
+    h2o_handler_t super;
+    h2o_url_t upstream;         /* host should be NULL-terminated */
+    h2o_socketpool_t *sockpool; /* non-NULL if config.use_keepalive == 1 */
+    h2o_proxy_config_vars_t config;
+};
+
+static int on_req(h2o_handler_t *_self, h2o_req_t *req)
+{
+    struct rp_handler_t *self = (void *)_self;
+    h2o_req_overrides_t *overrides = h2o_mem_alloc_pool(&req->pool, sizeof(*overrides));
+    const h2o_url_scheme_t *scheme;
+    h2o_iovec_t *authority;
+
+    /* setup overrides */
+    *overrides = (h2o_req_overrides_t){NULL};
+    if (self->sockpool != NULL) {
+        overrides->socketpool = self->sockpool;
+    } else if (self->config.preserve_host) {
+        overrides->hostport.host = self->upstream.host;
+        overrides->hostport.port = h2o_url_get_port(&self->upstream);
+    }
+    overrides->location_rewrite.match = &self->upstream;
+    overrides->location_rewrite.path_prefix = req->pathconf->path;
+    overrides->use_proxy_protocol = self->config.use_proxy_protocol;
+    overrides->client_ctx = h2o_context_get_handler_context(req->conn->ctx, &self->super);
+    overrides->headers_cmds = self->config.headers_cmds;
+
+    /* determine the scheme and authority */
+    if (self->config.preserve_host) {
+        scheme = req->scheme;
+        authority = &req->authority;
+    } else {
+        scheme = self->upstream.scheme;
+        authority = &self->upstream.authority;
+    }
+
+    /* request reprocess */
+    h2o_reprocess_request(req, req->method, scheme, *authority,
+                          h2o_build_destination(req, self->upstream.path.base, self->upstream.path.len, 0), overrides, 0);
+
+    return 0;
+}
+
+static void on_context_init(h2o_handler_t *_self, h2o_context_t *ctx)
+{
+    struct rp_handler_t *self = (void *)_self;
+
+    /* use the loop of first context for handling socketpool timeouts */
+    if (self->sockpool != NULL && self->sockpool->timeout == UINT64_MAX)
+        h2o_socketpool_set_timeout(self->sockpool, ctx->loop, self->config.keepalive_timeout);
+
+    /* setup a specific client context only if we need to */
+    if (ctx->globalconf->proxy.io_timeout == self->config.io_timeout && !self->config.websocket.enabled &&
+        self->config.ssl_ctx == ctx->globalconf->proxy.ssl_ctx)
+        return;
+
+    h2o_http1client_ctx_t *client_ctx = h2o_mem_alloc(sizeof(*ctx));
+    client_ctx->loop = ctx->loop;
+    client_ctx->getaddr_receiver = &ctx->receivers.hostinfo_getaddr;
+    if (ctx->globalconf->proxy.io_timeout == self->config.io_timeout) {
+        client_ctx->io_timeout = &ctx->proxy.io_timeout;
+    } else {
+        client_ctx->io_timeout = h2o_mem_alloc(sizeof(*client_ctx->io_timeout));
+        h2o_timeout_init(client_ctx->loop, client_ctx->io_timeout, self->config.io_timeout);
+    }
+    if (self->config.websocket.enabled) {
+        /* FIXME avoid creating h2o_timeout_t for every path-level context in case the timeout values are the same */
+        client_ctx->websocket_timeout = h2o_mem_alloc(sizeof(*client_ctx->websocket_timeout));
+        h2o_timeout_init(client_ctx->loop, client_ctx->websocket_timeout, self->config.websocket.timeout);
+    } else {
+        client_ctx->websocket_timeout = NULL;
+    }
+    client_ctx->ssl_ctx = self->config.ssl_ctx;
+
+    h2o_context_set_handler_context(ctx, &self->super, client_ctx);
+}
+
+static void on_context_dispose(h2o_handler_t *_self, h2o_context_t *ctx)
+{
+    struct rp_handler_t *self = (void *)_self;
+    h2o_http1client_ctx_t *client_ctx = h2o_context_get_handler_context(ctx, &self->super);
+
+    if (client_ctx == NULL)
+        return;
+
+    if (client_ctx->io_timeout != &ctx->proxy.io_timeout) {
+        h2o_timeout_dispose(client_ctx->loop, client_ctx->io_timeout);
+        free(client_ctx->io_timeout);
+    }
+    if (client_ctx->websocket_timeout != NULL) {
+        h2o_timeout_dispose(client_ctx->loop, client_ctx->websocket_timeout);
+        free(client_ctx->websocket_timeout);
+    }
+    free(client_ctx);
+}
+
+static void on_handler_dispose(h2o_handler_t *_self)
+{
+    struct rp_handler_t *self = (void *)_self;
+
+    if (self->config.ssl_ctx != NULL)
+        SSL_CTX_free(self->config.ssl_ctx);
+    free(self->upstream.host.base);
+    free(self->upstream.path.base);
+    if (self->sockpool != NULL) {
+        h2o_socketpool_dispose(self->sockpool);
+        free(self->sockpool);
+    }
+}
+
+void h2o_proxy_register_reverse_proxy(h2o_pathconf_t *pathconf, h2o_url_t *upstream, h2o_proxy_config_vars_t *config)
+{
+    struct sockaddr_un sa;
+    const char *to_sa_err;
+    struct rp_handler_t *self = (void *)h2o_create_handler(pathconf, sizeof(*self));
+    self->super.on_context_init = on_context_init;
+    self->super.on_context_dispose = on_context_dispose;
+    self->super.dispose = on_handler_dispose;
+    self->super.on_req = on_req;
+    to_sa_err = h2o_url_host_to_sun(upstream->host, &sa);
+    if (config->keepalive_timeout != 0) {
+        self->sockpool = h2o_mem_alloc(sizeof(*self->sockpool));
+        int is_ssl = upstream->scheme == &H2O_URL_SCHEME_HTTPS;
+        if (to_sa_err == h2o_url_host_to_sun_err_is_not_unix_socket) {
+            h2o_socketpool_init_by_hostport(self->sockpool, upstream->host, h2o_url_get_port(upstream), is_ssl,
+                                            SIZE_MAX /* FIXME */);
+        } else {
+            assert(to_sa_err == NULL);
+            h2o_socketpool_init_by_address(self->sockpool, (void *)&sa, sizeof(sa), is_ssl, SIZE_MAX /* FIXME */);
+        }
+    }
+    h2o_url_copy(NULL, &self->upstream, upstream);
+    if (to_sa_err) {
+        h2o_strtolower(self->upstream.host.base, self->upstream.host.len);
+    }
+    self->config = *config;
+    if (self->config.ssl_ctx != NULL)
+        SSL_CTX_up_ref(self->config.ssl_ctx);
+}
diff --git a/debian/vendor-h2o/lib/handler/redirect.c b/debian/vendor-h2o/lib/handler/redirect.c
new file mode 100644
index 0000000..c8b9c50
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/redirect.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <stdlib.h>
+#include "h2o.h"
+
+#define MODULE_NAME "lib/handler/redirect.c"
+
+struct st_h2o_redirect_handler_t {
+    h2o_handler_t super;
+    int internal;
+    int status;
+    h2o_iovec_t prefix;
+};
+
+static void on_dispose(h2o_handler_t *_self)
+{
+    h2o_redirect_handler_t *self = (void *)_self;
+    free(self->prefix.base);
+}
+
+static void redirect_internally(h2o_redirect_handler_t *self, h2o_req_t *req, h2o_iovec_t dest)
+{
+    h2o_iovec_t method;
+    h2o_url_t input, resolved;
+
+    /* resolve the URL */
+    if (h2o_url_parse_relative(dest.base, dest.len, &input) != 0) {
+        h2o_req_log_error(req, MODULE_NAME, "invalid destination:%.*s", (int)dest.len, dest.base);
+        goto SendInternalError;
+    }
+    if (input.scheme != NULL && input.authority.base != NULL) {
+        resolved = input;
+    } else {
+        h2o_url_t base;
+        /* we MUST to set authority to that of hostconf, or internal redirect might create a TCP connection */
+        if (h2o_url_init(&base, req->scheme, req->hostconf->authority.hostport, req->path) != 0) {
+            h2o_req_log_error(req, MODULE_NAME, "failed to parse current authority:%.*s", (int)req->authority.len,
+                              req->authority.base);
+            goto SendInternalError;
+        }
+        h2o_url_resolve(&req->pool, &base, &input, &resolved);
+    }
+
+    /* determine the method */
+    switch (self->status) {
+    case 307:
+    case 308:
+        method = req->method;
+        break;
+    default:
+        method = h2o_iovec_init(H2O_STRLIT("GET"));
+        req->entity = (h2o_iovec_t){NULL};
+        break;
+    }
+
+    h2o_reprocess_request_deferred(req, method, resolved.scheme, resolved.authority, resolved.path, NULL, 1);
+    return;
+
+SendInternalError:
+    h2o_send_error_503(req, "Internal Server Error", "internal server error", 0);
+}
+
+static int on_req(h2o_handler_t *_self, h2o_req_t *req)
+{
+    h2o_redirect_handler_t *self = (void *)_self;
+    h2o_iovec_t dest = h2o_build_destination(req, self->prefix.base, self->prefix.len, 1);
+
+    /* redirect */
+    if (self->internal) {
+        redirect_internally(self, req, dest);
+    } else {
+        h2o_send_redirect(req, self->status, "Redirected", dest.base, dest.len);
+    }
+
+    return 0;
+}
+
+h2o_redirect_handler_t *h2o_redirect_register(h2o_pathconf_t *pathconf, int internal, int status, const char *prefix)
+{
+    h2o_redirect_handler_t *self = (void *)h2o_create_handler(pathconf, sizeof(*self));
+    self->super.dispose = on_dispose;
+    self->super.on_req = on_req;
+    self->internal = internal;
+    self->status = status;
+    self->prefix = h2o_strdup(NULL, prefix, SIZE_MAX);
+    return self;
+}
diff --git a/debian/vendor-h2o/lib/handler/reproxy.c b/debian/vendor-h2o/lib/handler/reproxy.c
new file mode 100644
index 0000000..369386d
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/reproxy.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2014,2015 DeNA Co., Ltd., Kazuho Oku, Daisuke Maki
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o.h"
+
+static void on_send(h2o_ostream_t *self, h2o_req_t *req, h2o_iovec_t *inbufs, size_t inbufcnt, h2o_send_state_t state)
+{
+    /* nothing to do */
+}
+
+static void on_setup_ostream(h2o_filter_t *self, h2o_req_t *req, h2o_ostream_t **slot)
+{
+    h2o_iovec_t dest, method;
+    ssize_t xru_index;
+
+    /* obtain x-reproxy-url header, or skip to next ostream */
+    if ((xru_index = h2o_find_header(&req->res.headers, H2O_TOKEN_X_REPROXY_URL, -1)) == -1) {
+        h2o_setup_next_ostream(req, slot);
+        return;
+    }
+    dest = req->res.headers.entries[xru_index].value;
+    h2o_delete_header(&req->res.headers, xru_index);
+
+    /* setup params */
+    switch (req->res.status) {
+    case 307:
+    case 308:
+        method = req->method;
+        break;
+    default:
+        method = h2o_iovec_init(H2O_STRLIT("GET"));
+        req->entity = (h2o_iovec_t){NULL};
+        break;
+    }
+
+    /* request internal redirect (is deferred) */
+    h2o_send_redirect_internal(req, method, dest.base, dest.len, 0);
+
+    /* setup filter (that swallows the response until the timeout gets fired) */
+    h2o_ostream_t *ostream = h2o_add_ostream(req, sizeof(*ostream), slot);
+    ostream->do_send = on_send;
+}
+
+void h2o_reproxy_register(h2o_pathconf_t *pathconf)
+{
+    h2o_filter_t *self = h2o_create_filter(pathconf, sizeof(*self));
+    self->on_setup_ostream = on_setup_ostream;
+}
diff --git a/debian/vendor-h2o/lib/handler/status.c b/debian/vendor-h2o/lib/handler/status.c
new file mode 100644
index 0000000..93befed
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/status.c
@@ -0,0 +1,270 @@
+/*
+ * Copyright (c) 2016 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o.h"
+
+extern h2o_status_handler_t events_status_handler;
+extern h2o_status_handler_t requests_status_handler;
+extern h2o_status_handler_t durations_status_handler;
+
+struct st_h2o_status_logger_t {
+    h2o_logger_t super;
+};
+
+struct st_h2o_root_status_handler_t {
+    h2o_handler_t super;
+    H2O_VECTOR(h2o_multithread_receiver_t *) receivers;
+};
+
+struct st_h2o_status_context_t {
+    h2o_context_t *ctx;
+    h2o_multithread_receiver_t receiver;
+};
+
+struct st_status_ctx_t {
+    int active;
+    void *ctx;
+};
+struct st_h2o_status_collector_t {
+    struct {
+        h2o_req_t *req;
+        h2o_multithread_receiver_t *receiver;
+    } src;
+    size_t num_remaining_threads_atomic;
+    H2O_VECTOR(struct st_status_ctx_t) status_ctx;
+};
+
+struct st_h2o_status_message_t {
+    h2o_multithread_message_t super;
+    struct st_h2o_status_collector_t *collector;
+};
+
+static void collect_reqs_of_context(struct st_h2o_status_collector_t *collector, h2o_context_t *ctx)
+{
+    int i;
+
+    for (i = 0; i < ctx->globalconf->statuses.size; i++) {
+        struct st_status_ctx_t *sc = collector->status_ctx.entries + i;
+        h2o_status_handler_t *sh = ctx->globalconf->statuses.entries + i;
+        if (sc->active && sh->per_thread != NULL)
+            sh->per_thread(sc->ctx, ctx);
+    }
+
+    if (__sync_sub_and_fetch(&collector->num_remaining_threads_atomic, 1) == 0) {
+        struct st_h2o_status_message_t *message = h2o_mem_alloc(sizeof(*message));
+        message->super = (h2o_multithread_message_t){{NULL}};
+        message->collector = collector;
+        h2o_multithread_send_message(collector->src.receiver, &message->super);
+    }
+}
+
+static void send_response(struct st_h2o_status_collector_t *collector)
+{
+    static h2o_generator_t generator = {NULL, NULL};
+    h2o_req_t *req;
+    size_t nr_statuses;
+    int i;
+    int cur_resp = 0;
+
+    req = collector->src.req;
+    if (!req) {
+        h2o_mem_release_shared(collector);
+        return;
+    }
+
+    nr_statuses = req->conn->ctx->globalconf->statuses.size;
+    size_t nr_resp = nr_statuses + 2; // 2 for the footer and header
+    h2o_iovec_t resp[nr_resp];
+
+    memset(resp, 0, sizeof(resp[0]) * nr_resp);
+    resp[cur_resp++] = (h2o_iovec_t){H2O_STRLIT("{\n")};
+
+    int coma_removed = 0;
+    for (i = 0; i < req->conn->ctx->globalconf->statuses.size; i++) {
+        h2o_status_handler_t *sh = &req->conn->ctx->globalconf->statuses.entries[i];
+        if (!collector->status_ctx.entries[i].active) {
+            continue;
+        }
+        resp[cur_resp++] = sh->final(collector->status_ctx.entries[i].ctx, req->conn->ctx->globalconf, req);
+        if (resp[cur_resp - 1].len > 0 && !coma_removed) {
+            /* requests come in with a leading coma, replace if with a space */
+            resp[cur_resp - 1].base[0] = ' ';
+            coma_removed = 1;
+        }
+    }
+    resp[cur_resp++] = (h2o_iovec_t){H2O_STRLIT("\n}\n")};
+
+    req->res.status = 200;
+    h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CONTENT_TYPE, NULL, H2O_STRLIT("text/plain; charset=utf-8"));
+    h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CACHE_CONTROL, NULL, H2O_STRLIT("no-cache, no-store"));
+    h2o_start_response(req, &generator);
+    h2o_send(req, resp, h2o_memis(req->input.method.base, req->input.method.len, H2O_STRLIT("HEAD")) ? 0 : nr_resp,
+             H2O_SEND_STATE_FINAL);
+    h2o_mem_release_shared(collector);
+}
+
+static void on_collect_notify(h2o_multithread_receiver_t *receiver, h2o_linklist_t *messages)
+{
+    struct st_h2o_status_context_t *status_ctx = H2O_STRUCT_FROM_MEMBER(struct st_h2o_status_context_t, receiver, receiver);
+
+    while (!h2o_linklist_is_empty(messages)) {
+        struct st_h2o_status_message_t *message = H2O_STRUCT_FROM_MEMBER(struct st_h2o_status_message_t, super, messages->next);
+        struct st_h2o_status_collector_t *collector = message->collector;
+        h2o_linklist_unlink(&message->super.link);
+        free(message);
+
+        if (__sync_add_and_fetch(&collector->num_remaining_threads_atomic, 0) != 0) {
+            collect_reqs_of_context(collector, status_ctx->ctx);
+        } else {
+            send_response(collector);
+        }
+    }
+}
+
+static void on_collector_dispose(void *_collector)
+{
+}
+
+static void on_req_close(void *p)
+{
+    struct st_h2o_status_collector_t *collector = *(void **)p;
+    collector->src.req = NULL;
+    h2o_mem_release_shared(collector);
+}
+
+static int on_req_json(struct st_h2o_root_status_handler_t *self, h2o_req_t *req, h2o_iovec_t status_list)
+{
+    { /* construct collector and send request to every thread */
+        struct st_h2o_status_context_t *status_ctx = h2o_context_get_handler_context(req->conn->ctx, &self->super);
+        struct st_h2o_status_collector_t *collector = h2o_mem_alloc_shared(NULL, sizeof(*collector), on_collector_dispose);
+        size_t i;
+
+        memset(collector, 0, sizeof(*collector));
+        for (i = 0; i < req->conn->ctx->globalconf->statuses.size; i++) {
+            h2o_status_handler_t *sh;
+
+            h2o_vector_reserve(&req->pool, &collector->status_ctx, collector->status_ctx.size + 1);
+            sh = &req->conn->ctx->globalconf->statuses.entries[i];
+
+            if (status_list.base) {
+                if (!h2o_contains_token(status_list.base, status_list.len, sh->name.base, sh->name.len, ',')) {
+                    collector->status_ctx.entries[collector->status_ctx.size].active = 0;
+                    goto Skip;
+                }
+            }
+            if (sh->init) {
+                collector->status_ctx.entries[collector->status_ctx.size].ctx = sh->init();
+            }
+            collector->status_ctx.entries[collector->status_ctx.size].active = 1;
+        Skip:
+            collector->status_ctx.size++;
+        }
+        collector->src.req = req;
+        collector->src.receiver = &status_ctx->receiver;
+        collector->num_remaining_threads_atomic = self->receivers.size;
+
+        for (i = 0; i != self->receivers.size; ++i) {
+            struct st_h2o_status_message_t *message = h2o_mem_alloc(sizeof(*message));
+            *message = (struct st_h2o_status_message_t){{{NULL}}, collector};
+            h2o_multithread_send_message(self->receivers.entries[i], &message->super);
+        }
+
+        /* collector is also retained by the on_req_close callback */
+        *(struct st_h2o_status_collector_t **)h2o_mem_alloc_shared(&req->pool, sizeof(collector), on_req_close) = collector;
+        h2o_mem_addref_shared(collector);
+    }
+
+    return 0;
+}
+
+static int on_req(h2o_handler_t *_self, h2o_req_t *req)
+{
+    struct st_h2o_root_status_handler_t *self = (void *)_self;
+    size_t prefix_len = req->pathconf->path.len - (req->pathconf->path.base[req->pathconf->path.len - 1] == '/');
+    h2o_iovec_t local_path = h2o_iovec_init(req->path_normalized.base + prefix_len, req->path_normalized.len - prefix_len);
+
+    if (local_path.len == 0 || h2o_memis(local_path.base, local_path.len, H2O_STRLIT("/"))) {
+        /* root of the handler returns HTML that renders the status */
+        h2o_iovec_t fn;
+        const char *root = getenv("H2O_ROOT");
+        if (root == NULL)
+            root = H2O_TO_STR(H2O_ROOT);
+        fn = h2o_concat(&req->pool, h2o_iovec_init(root, strlen(root)), h2o_iovec_init(H2O_STRLIT("/share/h2o/status/index.html")));
+        h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_CACHE_CONTROL, NULL, H2O_STRLIT("no-cache"));
+        return h2o_file_send(req, 200, "OK", fn.base, h2o_iovec_init(H2O_STRLIT("text/html; charset=utf-8")), 0);
+    } else if (h2o_memis(local_path.base, local_path.len, H2O_STRLIT("/json"))) {
+        int ret;
+        /* "/json" maps to the JSON API */
+        h2o_iovec_t status_list = {NULL, 0}; /* NULL means we'll show all statuses */
+        if (req->query_at != SIZE_MAX && (req->path.len - req->query_at > 6)) {
+            if (h2o_memis(&req->path.base[req->query_at], 6, "?show=", 6)) {
+                status_list = h2o_iovec_init(&req->path.base[req->query_at + 6], req->path.len - req->query_at - 6);
+            }
+        }
+        ret = on_req_json(self, req, status_list);
+        return ret;
+    }
+
+    return -1;
+}
+
+static void on_context_init(h2o_handler_t *_self, h2o_context_t *ctx)
+{
+    struct st_h2o_root_status_handler_t *self = (void *)_self;
+    struct st_h2o_status_context_t *status_ctx = h2o_mem_alloc(sizeof(*status_ctx));
+
+    status_ctx->ctx = ctx;
+    h2o_multithread_register_receiver(ctx->queue, &status_ctx->receiver, on_collect_notify);
+
+    h2o_vector_reserve(NULL, &self->receivers, self->receivers.size + 1);
+    self->receivers.entries[self->receivers.size++] = &status_ctx->receiver;
+
+    h2o_context_set_handler_context(ctx, &self->super, status_ctx);
+}
+
+static void on_context_dispose(h2o_handler_t *_self, h2o_context_t *ctx)
+{
+    struct st_h2o_root_status_handler_t *self = (void *)_self;
+    struct st_h2o_status_context_t *status_ctx = h2o_context_get_handler_context(ctx, &self->super);
+    size_t i;
+
+    for (i = 0; i != self->receivers.size; ++i)
+        if (self->receivers.entries[i] == &status_ctx->receiver)
+            break;
+    assert(i != self->receivers.size);
+    memmove(self->receivers.entries + i + 1, self->receivers.entries + i, self->receivers.size - i - 1);
+    --self->receivers.size;
+
+    h2o_multithread_unregister_receiver(ctx->queue, &status_ctx->receiver);
+
+    free(status_ctx);
+}
+
+void h2o_status_register(h2o_pathconf_t *conf)
+{
+    struct st_h2o_root_status_handler_t *self = (void *)h2o_create_handler(conf, sizeof(*self));
+    self->super.on_context_init = on_context_init;
+    self->super.on_context_dispose = on_context_dispose;
+    self->super.on_req = on_req;
+    h2o_config_register_status_handler(conf->global, requests_status_handler);
+    h2o_config_register_status_handler(conf->global, events_status_handler);
+    h2o_config_register_status_handler(conf->global, durations_status_handler);
+}
diff --git a/debian/vendor-h2o/lib/handler/status/durations.c b/debian/vendor-h2o/lib/handler/status/durations.c
new file mode 100644
index 0000000..f011107
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/status/durations.c
@@ -0,0 +1,207 @@
+/*
+ * Copyright (c) 2016 Fastly
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "h2o.h"
+#include "gkc.h"
+#include <inttypes.h>
+#include <pthread.h>
+
+#define GK_EPSILON 0.01
+
+struct st_duration_stats_t {
+    struct gkc_summary *connect_time;
+    struct gkc_summary *header_time;
+    struct gkc_summary *body_time;
+    struct gkc_summary *request_total_time;
+    struct gkc_summary *process_time;
+    struct gkc_summary *response_time;
+    struct gkc_summary *duration;
+};
+
+struct st_duration_agg_stats_t {
+    struct st_duration_stats_t stats;
+    pthread_mutex_t mutex;
+};
+
+static h2o_logger_t *durations_logger;
+static void durations_status_per_thread(void *priv, h2o_context_t *ctx)
+{
+    struct st_duration_agg_stats_t *agg_stats = priv;
+    if (durations_logger) {
+        struct st_duration_stats_t *ctx_stats = h2o_context_get_logger_context(ctx, durations_logger);
+        pthread_mutex_lock(&agg_stats->mutex);
+#define ADD_DURATION(x)                                                                                                            \
+    do {                                                                                                                           \
+        struct gkc_summary *tmp;                                                                                                   \
+        tmp = gkc_combine(agg_stats->stats.x, ctx_stats->x);                                                                       \
+        gkc_summary_free(agg_stats->stats.x);                                                                                      \
+        agg_stats->stats.x = tmp;                                                                                                  \
+    } while (0)
+        ADD_DURATION(connect_time);
+        ADD_DURATION(header_time);
+        ADD_DURATION(body_time);
+        ADD_DURATION(request_total_time);
+        ADD_DURATION(process_time);
+        ADD_DURATION(response_time);
+        ADD_DURATION(duration);
+#undef ADD_DURATION
+        pthread_mutex_unlock(&agg_stats->mutex);
+    }
+}
+
+static void duration_stats_init(struct st_duration_stats_t *stats)
+{
+    stats->connect_time = gkc_summary_alloc(GK_EPSILON);
+    stats->header_time = gkc_summary_alloc(GK_EPSILON);
+    stats->body_time = gkc_summary_alloc(GK_EPSILON);
+    stats->request_total_time = gkc_summary_alloc(GK_EPSILON);
+    stats->process_time = gkc_summary_alloc(GK_EPSILON);
+    stats->response_time = gkc_summary_alloc(GK_EPSILON);
+    stats->duration = gkc_summary_alloc(GK_EPSILON);
+}
+
+static void *durations_status_init(void)
+{
+    struct st_duration_agg_stats_t *agg_stats;
+
+    agg_stats = h2o_mem_alloc(sizeof(*agg_stats));
+
+    duration_stats_init(&agg_stats->stats);
+    pthread_mutex_init(&agg_stats->mutex, NULL);
+
+    return agg_stats;
+}
+
+static void duration_stats_free(struct st_duration_stats_t *stats)
+{
+    gkc_summary_free(stats->connect_time);
+    gkc_summary_free(stats->header_time);
+    gkc_summary_free(stats->body_time);
+    gkc_summary_free(stats->request_total_time);
+    gkc_summary_free(stats->process_time);
+    gkc_summary_free(stats->response_time);
+    gkc_summary_free(stats->duration);
+}
+
+static h2o_iovec_t durations_status_final(void *priv, h2o_globalconf_t *gconf, h2o_req_t *req)
+{
+    struct st_duration_agg_stats_t *agg_stats = priv;
+    h2o_iovec_t ret;
+
+#define BUFSIZE 16384
+#define DURATION_FMT(x)                                                                                                            \
+    " \"" x "-0\": %lu,\n"                                                                                                         \
+    " \"" x "-25\": %lu,\n"                                                                                                        \
+    " \"" x "-50\": %lu,\n"                                                                                                        \
+    " \"" x "-75\": %lu,\n"                                                                                                        \
+    " \"" x "-99\": %lu\n"
+#define DURATION_VALS(x)                                                                                                           \
+    gkc_query(agg_stats->stats.x, 0), gkc_query(agg_stats->stats.x, 0.25), gkc_query(agg_stats->stats.x, 0.5),                     \
+        gkc_query(agg_stats->stats.x, 0.75), gkc_query(agg_stats->stats.x, 0.99)
+
+    ret.base = h2o_mem_alloc_pool(&req->pool, BUFSIZE);
+    ret.len = snprintf(
+        ret.base, BUFSIZE,
+        ",\n" DURATION_FMT("connect-time") "," DURATION_FMT("header-time") "," DURATION_FMT("body-time") "," DURATION_FMT(
+            "request-total-time") "," DURATION_FMT("process-time") "," DURATION_FMT("response-time") "," DURATION_FMT("duration"),
+        DURATION_VALS(connect_time), DURATION_VALS(header_time), DURATION_VALS(body_time), DURATION_VALS(request_total_time),
+        DURATION_VALS(process_time), DURATION_VALS(response_time), DURATION_VALS(duration));
+
+#undef BUFSIZE
+#undef DURATION_FMT
+#undef DURATION_VALS
+
+    duration_stats_free(&agg_stats->stats);
+    pthread_mutex_destroy(&agg_stats->mutex);
+
+    free(agg_stats);
+    return ret;
+}
+
+static void stat_access(h2o_logger_t *_self, h2o_req_t *req)
+{
+    struct st_duration_stats_t *ctx_stats = h2o_context_get_logger_context(req->conn->ctx, _self);
+#define ADD_OBSERVATION(x, from, until)                                                                                            \
+    do {                                                                                                                           \
+        int64_t dur;                                                                                                               \
+        if (h2o_time_compute_##x(req, &dur)) {                                                                                     \
+            gkc_insert_value(ctx_stats->x, dur);                                                                                   \
+        }                                                                                                                          \
+    } while (0)
+
+    ADD_OBSERVATION(connect_time, &req->conn->connected_at, &req->timestamps.request_begin_at);
+    ADD_OBSERVATION(header_time, &req->timestamps.request_begin_at, h2o_timeval_is_null(&req->timestamps.request_body_begin_at)
+                                                                        ? &req->processed_at.at
+                                                                        : &req->timestamps.request_body_begin_at);
+    ADD_OBSERVATION(body_time, h2o_timeval_is_null(&req->timestamps.request_body_begin_at) ? &req->processed_at.at
+                                                                                           : &req->timestamps.request_body_begin_at,
+                    &req->processed_at.at);
+    ADD_OBSERVATION(request_total_time, &req->timestamps.request_begin_at, &req->processed_at.at);
+    ADD_OBSERVATION(process_time, &req->processed_at.at, &req->timestamps.response_start_at);
+    ADD_OBSERVATION(response_time, &req->timestamps.response_start_at, &req->timestamps.response_end_at);
+    ADD_OBSERVATION(duration, &req->timestamps.request_begin_at, &req->timestamps.response_end_at);
+#undef ADD_OBSERVATION
+}
+
+void on_context_init(struct st_h2o_logger_t *self, h2o_context_t *ctx)
+{
+    struct st_duration_stats_t *duration_stats = h2o_mem_alloc(sizeof(struct st_duration_stats_t));
+    duration_stats_init(duration_stats);
+    h2o_context_set_logger_context(ctx, self, duration_stats);
+}
+
+void on_context_dispose(struct st_h2o_logger_t *self, h2o_context_t *ctx)
+{
+    struct st_duration_stats_t *duration_stats;
+    duration_stats = h2o_context_get_logger_context(ctx, self);
+    duration_stats_free(duration_stats);
+}
+
+void h2o_duration_stats_register(h2o_globalconf_t *conf)
+{
+    int i, k;
+    h2o_logger_t *logger;
+    h2o_hostconf_t *hconf;
+
+    durations_logger = logger = h2o_mem_alloc(sizeof(*logger));
+    memset(logger, 0, sizeof(*logger));
+    logger->_config_slot = conf->_num_config_slots++;
+    logger->log_access = stat_access;
+    logger->on_context_init = on_context_init;
+    logger->on_context_dispose = on_context_dispose;
+
+    for (k = 0; conf->hosts[k]; k++) {
+        hconf = conf->hosts[k];
+        for (i = 0; i < hconf->paths.size; i++) {
+            int j;
+            for (j = 0; j < hconf->paths.entries[i].handlers.size; j++) {
+                h2o_pathconf_t *pathconf = &hconf->paths.entries[i];
+                h2o_vector_reserve(NULL, &pathconf->loggers, pathconf->loggers.size + 1);
+                pathconf->loggers.entries[pathconf->loggers.size++] = (void *)logger;
+            }
+        }
+    }
+}
+
+h2o_status_handler_t durations_status_handler = {
+    {H2O_STRLIT("durations")}, durations_status_init, durations_status_per_thread, durations_status_final,
+};
diff --git a/debian/vendor-h2o/lib/handler/status/events.c b/debian/vendor-h2o/lib/handler/status/events.c
new file mode 100644
index 0000000..e6ed0b7
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/status/events.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2016 Fastly
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "h2o.h"
+#include <inttypes.h>
+
+struct st_events_status_ctx_t {
+    uint64_t emitted_status_errors[H2O_STATUS_ERROR_MAX];
+    uint64_t h2_protocol_level_errors[H2O_HTTP2_ERROR_MAX];
+    uint64_t h2_read_closed;
+    uint64_t h2_write_closed;
+    pthread_mutex_t mutex;
+};
+
+static void events_status_per_thread(void *priv, h2o_context_t *ctx)
+{
+    size_t i;
+    struct st_events_status_ctx_t *esc = priv;
+
+    pthread_mutex_lock(&esc->mutex);
+
+    for (i = 0; i < H2O_STATUS_ERROR_MAX; i++) {
+        esc->emitted_status_errors[i] += ctx->emitted_error_status[i];
+    }
+    for (i = 0; i < H2O_HTTP2_ERROR_MAX; i++) {
+        esc->h2_protocol_level_errors[i] += ctx->http2.events.protocol_level_errors[i];
+    }
+    esc->h2_read_closed += ctx->http2.events.read_closed;
+    esc->h2_write_closed += ctx->http2.events.write_closed;
+
+    pthread_mutex_unlock(&esc->mutex);
+}
+
+static void *events_status_init(void)
+{
+    struct st_events_status_ctx_t *ret;
+
+    ret = h2o_mem_alloc(sizeof(*ret));
+    memset(ret, 0, sizeof(*ret));
+    pthread_mutex_init(&ret->mutex, NULL);
+
+    return ret;
+}
+
+static h2o_iovec_t events_status_final(void *priv, h2o_globalconf_t *gconf, h2o_req_t *req)
+{
+    struct st_events_status_ctx_t *esc = priv;
+    h2o_iovec_t ret;
+
+#define H1_AGG_ERR(status_) esc->emitted_status_errors[H2O_STATUS_ERROR_##status_]
+#define H2_AGG_ERR(err_) esc->h2_protocol_level_errors[-H2O_HTTP2_ERROR_##err_]
+#define BUFSIZE (2 * 1024)
+    ret.base = h2o_mem_alloc_pool(&req->pool, BUFSIZE);
+    ret.len = snprintf(ret.base, BUFSIZE, ",\n"
+                                          " \"status-errors.400\": %" PRIu64 ",\n"
+                                          " \"status-errors.403\": %" PRIu64 ",\n"
+                                          " \"status-errors.404\": %" PRIu64 ",\n"
+                                          " \"status-errors.405\": %" PRIu64 ",\n"
+                                          " \"status-errors.416\": %" PRIu64 ",\n"
+                                          " \"status-errors.417\": %" PRIu64 ",\n"
+                                          " \"status-errors.500\": %" PRIu64 ",\n"
+                                          " \"status-errors.502\": %" PRIu64 ",\n"
+                                          " \"status-errors.503\": %" PRIu64 ",\n"
+                                          " \"http2-errors.protocol\": %" PRIu64 ", \n"
+                                          " \"http2-errors.internal\": %" PRIu64 ", \n"
+                                          " \"http2-errors.flow-control\": %" PRIu64 ", \n"
+                                          " \"http2-errors.settings-timeout\": %" PRIu64 ", \n"
+                                          " \"http2-errors.stream-closed\": %" PRIu64 ", \n"
+                                          " \"http2-errors.frame-size\": %" PRIu64 ", \n"
+                                          " \"http2-errors.refused-stream\": %" PRIu64 ", \n"
+                                          " \"http2-errors.cancel\": %" PRIu64 ", \n"
+                                          " \"http2-errors.compression\": %" PRIu64 ", \n"
+                                          " \"http2-errors.connect\": %" PRIu64 ", \n"
+                                          " \"http2-errors.enhance-your-calm\": %" PRIu64 ", \n"
+                                          " \"http2-errors.inadequate-security\": %" PRIu64 ", \n"
+                                          " \"http2.read-closed\": %" PRIu64 ", \n"
+                                          " \"http2.write-closed\": %" PRIu64 "\n",
+                       H1_AGG_ERR(400), H1_AGG_ERR(403), H1_AGG_ERR(404), H1_AGG_ERR(405), H1_AGG_ERR(416), H1_AGG_ERR(417),
+                       H1_AGG_ERR(500), H1_AGG_ERR(502), H1_AGG_ERR(503), H2_AGG_ERR(PROTOCOL), H2_AGG_ERR(INTERNAL),
+                       H2_AGG_ERR(FLOW_CONTROL), H2_AGG_ERR(SETTINGS_TIMEOUT), H2_AGG_ERR(STREAM_CLOSED), H2_AGG_ERR(FRAME_SIZE),
+                       H2_AGG_ERR(REFUSED_STREAM), H2_AGG_ERR(CANCEL), H2_AGG_ERR(COMPRESSION), H2_AGG_ERR(CONNECT),
+                       H2_AGG_ERR(ENHANCE_YOUR_CALM), H2_AGG_ERR(INADEQUATE_SECURITY), esc->h2_read_closed, esc->h2_write_closed);
+    pthread_mutex_destroy(&esc->mutex);
+    free(esc);
+    return ret;
+#undef BUFSIZE
+#undef H1_AGG_ERR
+#undef H2_AGG_ERR
+}
+
+h2o_status_handler_t events_status_handler = {
+    {H2O_STRLIT("events")}, events_status_init, events_status_per_thread, events_status_final,
+};
diff --git a/debian/vendor-h2o/lib/handler/status/requests.c b/debian/vendor-h2o/lib/handler/status/requests.c
new file mode 100644
index 0000000..4854e4a
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/status/requests.c
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2016 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "h2o.h"
+
+struct st_requests_status_ctx_t {
+    h2o_logconf_t *logconf;
+    h2o_iovec_t req_data;
+    pthread_mutex_t mutex;
+};
+
+struct st_collect_req_status_cbdata_t {
+    h2o_logconf_t *logconf;
+    h2o_buffer_t *buffer;
+};
+
+static int collect_req_status(h2o_req_t *req, void *_cbdata)
+{
+    struct st_collect_req_status_cbdata_t *cbdata = _cbdata;
+
+    /* collect log */
+    char buf[4096];
+    size_t len = sizeof(buf);
+    char *logline = h2o_log_request(cbdata->logconf, req, &len, buf);
+    assert(len != 0);
+    --len; /* omit trailing LF */
+
+    /* append to buffer */
+    h2o_buffer_reserve(&cbdata->buffer, len + 3);
+    memcpy(cbdata->buffer->bytes + cbdata->buffer->size, logline, len);
+    cbdata->buffer->size += len;
+
+    if (logline != buf)
+        free(logline);
+
+    return 0;
+}
+
+static void requests_status_per_thread(void *priv, h2o_context_t *ctx)
+{
+    struct st_requests_status_ctx_t *rsc = priv;
+    struct st_collect_req_status_cbdata_t cbdata = {rsc->logconf};
+
+    /* we encountered an error at init() time, return early */
+    if (rsc->logconf == NULL)
+        return;
+
+    h2o_buffer_init(&cbdata.buffer, &h2o_socket_buffer_prototype);
+    ctx->globalconf->http1.callbacks.foreach_request(ctx, collect_req_status, &cbdata);
+    ctx->globalconf->http2.callbacks.foreach_request(ctx, collect_req_status, &cbdata);
+
+    /* concat JSON elements */
+    if (cbdata.buffer->size != 0) {
+        pthread_mutex_lock(&rsc->mutex);
+        if (rsc->req_data.len == 0)
+            h2o_buffer_consume(&cbdata.buffer, 1); /* skip preceeding comma */
+        rsc->req_data.base = h2o_mem_realloc(rsc->req_data.base, rsc->req_data.len + cbdata.buffer->size);
+        memcpy(rsc->req_data.base + rsc->req_data.len, cbdata.buffer->bytes, cbdata.buffer->size);
+        rsc->req_data.len += cbdata.buffer->size;
+        pthread_mutex_unlock(&rsc->mutex);
+    }
+
+    h2o_buffer_dispose(&cbdata.buffer);
+}
+
+static void *requests_status_init(void)
+{
+    struct st_requests_status_ctx_t *rsc = h2o_mem_alloc(sizeof(*rsc));
+    char errbuf[256];
+
+#define ELEMENT(key, expr) "\"" key "\": \"" expr "\""
+#define X_ELEMENT(id) ELEMENT(id, "%{" id "}x")
+#define SEPARATOR ", "
+    const char *fmt = ",\n  {"
+        /* combined_log */
+        ELEMENT("host", "%h") SEPARATOR ELEMENT("user", "%u") SEPARATOR ELEMENT("at", "%{%Y%m%dT%H%M%S}t.%{usec_frac}t%{%z}t")
+            SEPARATOR ELEMENT("method", "%m") SEPARATOR ELEMENT("path", "%U") SEPARATOR ELEMENT("query", "%q")
+                SEPARATOR ELEMENT("protocol", "%H") SEPARATOR ELEMENT("referer", "%{Referer}i")
+                    SEPARATOR ELEMENT("user-agent", "%{User-agent}i") SEPARATOR
+        /* time */
+        X_ELEMENT("connect-time") SEPARATOR X_ELEMENT("request-header-time") SEPARATOR X_ELEMENT("request-body-time")
+            SEPARATOR X_ELEMENT("request-total-time") SEPARATOR X_ELEMENT("process-time") SEPARATOR X_ELEMENT("response-time")
+                SEPARATOR
+        /* connection */
+        X_ELEMENT("connection-id") SEPARATOR X_ELEMENT("ssl.protocol-version") SEPARATOR X_ELEMENT("ssl.session-reused")
+            SEPARATOR X_ELEMENT("ssl.cipher") SEPARATOR X_ELEMENT("ssl.cipher-bits") SEPARATOR X_ELEMENT("ssl.session-ticket")
+                SEPARATOR
+        /* http1 */
+        X_ELEMENT("http1.request-index") SEPARATOR
+        /* http2 */
+        X_ELEMENT("http2.stream-id") SEPARATOR X_ELEMENT("http2.priority.received.exclusive")
+            SEPARATOR X_ELEMENT("http2.priority.received.parent") SEPARATOR X_ELEMENT("http2.priority.received.weight")
+                SEPARATOR X_ELEMENT("http2.priority.actual.parent") SEPARATOR X_ELEMENT("http2.priority.actual.weight") SEPARATOR
+        /* misc */
+        ELEMENT("authority", "%V")
+        /* end */
+        "}";
+#undef ELEMENT
+#undef X_ELEMENT
+#undef SEPARATOR
+
+    /* compile logconf */
+    if ((rsc->logconf = h2o_logconf_compile(fmt, H2O_LOGCONF_ESCAPE_JSON, errbuf)) == NULL)
+        /* log format compilation error is an internal logic flaw, therefore we need not send the details to the client */
+        fprintf(stderr, "[lib/handler/status/requests.c] failed to compile log format: %s", errbuf);
+
+    rsc->req_data = (h2o_iovec_t){NULL};
+    pthread_mutex_init(&rsc->mutex, NULL);
+
+    return rsc;
+}
+
+static h2o_iovec_t requests_status_final(void *priv, h2o_globalconf_t *gconf, h2o_req_t *req)
+{
+    h2o_iovec_t ret = {NULL};
+    struct st_requests_status_ctx_t *rsc = priv;
+
+    if (rsc->logconf != NULL) {
+        ret = h2o_concat(&req->pool, h2o_iovec_init(H2O_STRLIT(",\n \"requests\": [")), rsc->req_data,
+                         h2o_iovec_init(H2O_STRLIT("\n ]")));
+        h2o_logconf_dispose(rsc->logconf);
+    }
+    free(rsc->req_data.base);
+    pthread_mutex_destroy(&rsc->mutex);
+
+    free(rsc);
+    return ret;
+}
+
+h2o_status_handler_t requests_status_handler = {
+    {H2O_STRLIT("requests")}, requests_status_init, requests_status_per_thread, requests_status_final,
+};
diff --git a/debian/vendor-h2o/lib/handler/throttle_resp.c b/debian/vendor-h2o/lib/handler/throttle_resp.c
new file mode 100644
index 0000000..a0028b5
--- /dev/null
+++ b/debian/vendor-h2o/lib/handler/throttle_resp.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright (c) 2016 Justin Zhu
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <stdlib.h>
+#include "h2o.h"
+
+#ifndef HUNDRED_MS
+#define HUNDRED_MS 100
+#endif
+
+#ifndef ONE_SECOND
+#define ONE_SECOND 1000
+#endif
+
+typedef H2O_VECTOR(h2o_iovec_t) iovec_vector_t;
+
+typedef struct st_throttle_resp_t {
+    h2o_ostream_t super;
+    h2o_timeout_entry_t timeout_entry;
+    int64_t tokens;
+    size_t token_inc;
+    h2o_context_t *ctx;
+    h2o_req_t *req;
+    struct {
+        iovec_vector_t bufs;
+        h2o_send_state_t stream_state;
+    } state;
+} throttle_resp_t;
+
+static void real_send(throttle_resp_t *self)
+{
+    /* a really simple token bucket implementation */
+    assert(self->tokens > 0);
+    size_t i, token_consume;
+
+    token_consume = 0;
+
+    for (i = 0; i < self->state.bufs.size; i++) {
+        token_consume += self->state.bufs.entries[i].len;
+    }
+
+    self->tokens -= token_consume;
+
+    h2o_ostream_send_next(&self->super, self->req, self->state.bufs.entries, self->state.bufs.size, self->state.stream_state);
+    if (!h2o_send_state_is_in_progress(self->state.stream_state))
+        h2o_timeout_unlink(&self->timeout_entry);
+}
+
+static void add_token(h2o_timeout_entry_t *entry)
+{
+    throttle_resp_t *self = H2O_STRUCT_FROM_MEMBER(throttle_resp_t, timeout_entry, entry);
+
+    h2o_timeout_link(self->ctx->loop, &self->ctx->hundred_ms_timeout, &self->timeout_entry);
+    self->tokens += self->token_inc;
+
+    if (self->tokens > 0)
+        real_send(self);
+}
+
+static void on_send(h2o_ostream_t *_self, h2o_req_t *req, h2o_iovec_t *inbufs, size_t inbufcnt, h2o_send_state_t state)
+{
+    throttle_resp_t *self = (void *)_self;
+    size_t i;
+
+    /* I don't know if this is a proper way. */
+    h2o_vector_reserve(&req->pool, &self->state.bufs, inbufcnt);
+    /* start to save state */
+    for (i = 0; i < inbufcnt; ++i) {
+        self->state.bufs.entries[i] = inbufs[i];
+    }
+    self->state.bufs.size = inbufcnt;
+    self->state.stream_state = state;
+
+    /* if there's token, we try to send */
+    if (self->tokens > 0)
+        real_send(self);
+}
+
+static void on_stop(h2o_ostream_t *_self, h2o_req_t *req)
+{
+    throttle_resp_t *self = (void *)_self;
+    if (h2o_timeout_is_linked(&self->timeout_entry)) {
+        h2o_timeout_unlink(&self->timeout_entry);
+    }
+}
+
+static void on_setup_ostream(h2o_filter_t *self, h2o_req_t *req, h2o_ostream_t **slot)
+{
+    throttle_resp_t *throttle;
+    h2o_iovec_t traffic_header_value;
+    size_t traffic_limit;
+
+    if (req->res.status != 200)
+        goto Next;
+    if (h2o_memis(req->input.method.base, req->input.method.len, H2O_STRLIT("HEAD")))
+        goto Next;
+
+    ssize_t xt_index;
+    if ((xt_index = h2o_find_header(&req->res.headers, H2O_TOKEN_X_TRAFFIC, -1)) == -1)
+        goto Next;
+
+    traffic_header_value = req->res.headers.entries[xt_index].value;
+    char *buf = traffic_header_value.base;
+
+    if (H2O_UNLIKELY((traffic_limit = h2o_strtosizefwd(&buf, traffic_header_value.len)) == SIZE_MAX))
+        goto Next;
+
+    throttle = (void *)h2o_add_ostream(req, sizeof(throttle_resp_t), slot);
+
+    /* calculate the token increment per 100ms */
+    throttle->token_inc = traffic_limit * HUNDRED_MS / ONE_SECOND;
+    if (req->preferred_chunk_size > throttle->token_inc)
+        req->preferred_chunk_size = throttle->token_inc;
+
+    h2o_delete_header(&req->res.headers, xt_index);
+
+    throttle->super.do_send = on_send;
+    throttle->super.stop = on_stop;
+    throttle->ctx = req->conn->ctx;
+    throttle->req = req;
+    throttle->state.bufs.capacity = 0;
+    throttle->state.bufs.size = 0;
+    throttle->timeout_entry = (h2o_timeout_entry_t){0};
+    throttle->timeout_entry.cb = add_token;
+    throttle->tokens = throttle->token_inc;
+    slot = &throttle->super.next;
+
+    h2o_timeout_link(throttle->ctx->loop, &throttle->ctx->hundred_ms_timeout, &throttle->timeout_entry);
+
+Next:
+    h2o_setup_next_ostream(req, slot);
+}
+
+void h2o_throttle_resp_register(h2o_pathconf_t *pathconf)
+{
+    h2o_filter_t *self = h2o_create_filter(pathconf, sizeof(*self));
+    self->on_setup_ostream = on_setup_ostream;
+}
diff --git a/debian/vendor-h2o/lib/http1.c b/debian/vendor-h2o/lib/http1.c
new file mode 100644
index 0000000..98c4e55
--- /dev/null
+++ b/debian/vendor-h2o/lib/http1.c
@@ -0,0 +1,859 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku, Shota Fukumori,
+ *                         Fastly, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <inttypes.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "picohttpparser.h"
+#include "h2o.h"
+#include "h2o/http1.h"
+#include "h2o/http2.h"
+
+#define MAX_PULL_BUF_SZ 65536
+
+struct st_h2o_http1_finalostream_t {
+    h2o_ostream_t super;
+    int sent_headers;
+    struct {
+        void *buf;
+        h2o_ostream_pull_cb cb;
+    } pull;
+};
+
+struct st_h2o_http1_conn_t {
+    h2o_conn_t super;
+    h2o_socket_t *sock;
+    /* internal structure */
+    h2o_linklist_t _conns;
+    h2o_timeout_t *_timeout;
+    h2o_timeout_entry_t _timeout_entry;
+    uint64_t _req_index;
+    size_t _prevreqlen;
+    size_t _reqsize;
+    struct st_h2o_http1_req_entity_reader *_req_entity_reader;
+    struct st_h2o_http1_finalostream_t _ostr_final;
+    struct {
+        void *data;
+        h2o_http1_upgrade_cb cb;
+    } upgrade;
+    /* the HTTP request / response (intentionally placed at the last, since it is a large structure and has it's own ctor) */
+    h2o_req_t req;
+};
+
+struct st_h2o_http1_req_entity_reader {
+    void (*handle_incoming_entity)(struct st_h2o_http1_conn_t *conn);
+};
+
+struct st_h2o_http1_content_length_entity_reader {
+    struct st_h2o_http1_req_entity_reader super;
+    size_t content_length;
+};
+
+struct st_h2o_http1_chunked_entity_reader {
+    struct st_h2o_http1_req_entity_reader super;
+    struct phr_chunked_decoder decoder;
+    size_t prev_input_size;
+};
+
+static void proceed_pull(struct st_h2o_http1_conn_t *conn, size_t nfilled);
+static void finalostream_start_pull(h2o_ostream_t *_self, h2o_ostream_pull_cb cb);
+static void finalostream_send(h2o_ostream_t *_self, h2o_req_t *req, h2o_iovec_t *inbufs, size_t inbufcnt, h2o_send_state_t state);
+static void reqread_on_read(h2o_socket_t *sock, const char *err);
+static int foreach_request(h2o_context_t *ctx, int (*cb)(h2o_req_t *req, void *cbdata), void *cbdata);
+
+const h2o_protocol_callbacks_t H2O_HTTP1_CALLBACKS = {
+    NULL, /* graceful_shutdown (note: nothing special needs to be done for handling graceful shutdown) */
+    foreach_request};
+
+static int is_msie(h2o_req_t *req)
+{
+    ssize_t cursor = h2o_find_header(&req->headers, H2O_TOKEN_USER_AGENT, -1);
+    if (cursor == -1)
+        return 0;
+    if (h2o_strstr(req->headers.entries[cursor].value.base, req->headers.entries[cursor].value.len, H2O_STRLIT("; MSIE ")) ==
+        SIZE_MAX)
+        return 0;
+    return 1;
+}
+
+static void init_request(struct st_h2o_http1_conn_t *conn, int reinit)
+{
+    if (reinit)
+        h2o_dispose_request(&conn->req);
+    h2o_init_request(&conn->req, &conn->super, NULL);
+
+    ++conn->_req_index;
+    conn->req._ostr_top = &conn->_ostr_final.super;
+    conn->_ostr_final.super.do_send = finalostream_send;
+    conn->_ostr_final.super.start_pull = finalostream_start_pull;
+    conn->_ostr_final.sent_headers = 0;
+}
+
+static void close_connection(struct st_h2o_http1_conn_t *conn, int close_socket)
+{
+    h2o_timeout_unlink(&conn->_timeout_entry);
+    h2o_dispose_request(&conn->req);
+    if (conn->sock != NULL && close_socket)
+        h2o_socket_close(conn->sock);
+    h2o_linklist_unlink(&conn->_conns);
+    free(conn);
+}
+
+static void set_timeout(struct st_h2o_http1_conn_t *conn, h2o_timeout_t *timeout, h2o_timeout_cb cb)
+{
+    if (conn->_timeout != NULL) {
+        h2o_timeout_unlink(&conn->_timeout_entry);
+        conn->_timeout_entry.cb = NULL;
+    }
+    conn->_timeout = timeout;
+    if (timeout != NULL) {
+        h2o_timeout_link(conn->super.ctx->loop, timeout, &conn->_timeout_entry);
+        conn->_timeout_entry.cb = cb;
+    }
+}
+
+static void process_request(struct st_h2o_http1_conn_t *conn)
+{
+    if (conn->sock->ssl == NULL && conn->req.upgrade.base != NULL && conn->super.ctx->globalconf->http1.upgrade_to_http2 &&
+        conn->req.upgrade.len >= 3 && h2o_lcstris(conn->req.upgrade.base, 3, H2O_STRLIT("h2c")) &&
+        (conn->req.upgrade.len == 3 ||
+         (conn->req.upgrade.len == 6 && (memcmp(conn->req.upgrade.base + 3, H2O_STRLIT("-14")) == 0 ||
+                                         memcmp(conn->req.upgrade.base + 3, H2O_STRLIT("-16")) == 0)))) {
+        if (h2o_http2_handle_upgrade(&conn->req, conn->super.connected_at) == 0) {
+            return;
+        }
+    }
+    h2o_process_request(&conn->req);
+}
+
+#define DECL_ENTITY_READ_SEND_ERROR_XXX(status_)                                                                                   \
+    static void entity_read_send_error_##status_(struct st_h2o_http1_conn_t *conn, const char *reason, const char *body)           \
+    {                                                                                                                              \
+        conn->_req_entity_reader = NULL;                                                                                           \
+        set_timeout(conn, NULL, NULL);                                                                                             \
+        h2o_socket_read_stop(conn->sock);                                                                                          \
+        conn->req.http1_is_persistent = 0;                                                                                         \
+        conn->super.ctx->emitted_error_status[H2O_STATUS_ERROR_##status_]++;                                                       \
+        h2o_send_error_generic(&conn->req, status_, reason, body, H2O_SEND_ERROR_HTTP1_CLOSE_CONNECTION);                          \
+    }
+
+DECL_ENTITY_READ_SEND_ERROR_XXX(400)
+DECL_ENTITY_READ_SEND_ERROR_XXX(413)
+
+static void on_entity_read_complete(struct st_h2o_http1_conn_t *conn)
+{
+    conn->_req_entity_reader = NULL;
+    set_timeout(conn, NULL, NULL);
+    h2o_socket_read_stop(conn->sock);
+    process_request(conn);
+}
+
+static void handle_chunked_entity_read(struct st_h2o_http1_conn_t *conn)
+{
+    struct st_h2o_http1_chunked_entity_reader *reader = (void *)conn->_req_entity_reader;
+    h2o_buffer_t *inbuf = conn->sock->input;
+    size_t bufsz;
+    ssize_t ret;
+
+    /* decode the incoming data */
+    if ((bufsz = inbuf->size - reader->prev_input_size) == 0)
+        return;
+    ret = phr_decode_chunked(&reader->decoder, inbuf->bytes + reader->prev_input_size, &bufsz);
+    inbuf->size = reader->prev_input_size + bufsz;
+    reader->prev_input_size = inbuf->size;
+    if (ret != -1 && inbuf->size - conn->_reqsize >= conn->super.ctx->globalconf->max_request_entity_size) {
+        entity_read_send_error_413(conn, "Request Entity Too Large", "request entity is too large");
+        return;
+    }
+    if (ret < 0) {
+        if (ret == -2) {
+            /* incomplete */
+            return;
+        }
+        /* error */
+        entity_read_send_error_400(conn, "Invalid Request", "broken chunked-encoding");
+        return;
+    }
+    /* complete */
+    conn->req.entity = h2o_iovec_init(inbuf->bytes + conn->_reqsize, inbuf->size - conn->_reqsize);
+    conn->_reqsize = inbuf->size;
+    inbuf->size += ret; /* restore the number of extra bytes */
+
+    on_entity_read_complete(conn);
+}
+
+static int create_chunked_entity_reader(struct st_h2o_http1_conn_t *conn)
+{
+    struct st_h2o_http1_chunked_entity_reader *reader = h2o_mem_alloc_pool(&conn->req.pool, sizeof(*reader));
+    conn->_req_entity_reader = &reader->super;
+
+    reader->super.handle_incoming_entity = handle_chunked_entity_read;
+    memset(&reader->decoder, 0, sizeof(reader->decoder));
+    reader->decoder.consume_trailer = 1;
+    reader->prev_input_size = conn->_reqsize;
+
+    return 0;
+}
+
+static void handle_content_length_entity_read(struct st_h2o_http1_conn_t *conn)
+{
+    struct st_h2o_http1_content_length_entity_reader *reader = (void *)conn->_req_entity_reader;
+
+    /* wait until: reqsize == conn->_input.size */
+    if (conn->sock->input->size < conn->_reqsize)
+        return;
+
+    /* all input has arrived */
+    conn->req.entity = h2o_iovec_init(conn->sock->input->bytes + conn->_reqsize - reader->content_length, reader->content_length);
+    on_entity_read_complete(conn);
+}
+
+static int create_content_length_entity_reader(struct st_h2o_http1_conn_t *conn, size_t content_length)
+{
+    struct st_h2o_http1_content_length_entity_reader *reader = h2o_mem_alloc_pool(&conn->req.pool, sizeof(*reader));
+    conn->_req_entity_reader = &reader->super;
+
+    reader->super.handle_incoming_entity = handle_content_length_entity_read;
+    reader->content_length = content_length;
+    conn->_reqsize += content_length;
+
+    return 0;
+}
+
+static int create_entity_reader(struct st_h2o_http1_conn_t *conn, const struct phr_header *entity_header)
+{
+    /* strlen("content-length") is unequal to sizeof("transfer-encoding"), and thus checking the length only is sufficient */
+    if (entity_header->name_len == sizeof("transfer-encoding") - 1) {
+        /* transfer-encoding */
+        if (!h2o_lcstris(entity_header->value, entity_header->value_len, H2O_STRLIT("chunked"))) {
+            entity_read_send_error_400(conn, "Invalid Request", "unknown transfer-encoding");
+            return -1;
+        }
+        return create_chunked_entity_reader(conn);
+    } else {
+        /* content-length */
+        size_t content_length = h2o_strtosize(entity_header->value, entity_header->value_len);
+        if (content_length == SIZE_MAX) {
+            entity_read_send_error_400(conn, "Invalid Request", "broken content-length header");
+            return -1;
+        }
+        if (content_length > conn->super.ctx->globalconf->max_request_entity_size) {
+            entity_read_send_error_413(conn, "Request Entity Too Large", "request entity is too large");
+            return -1;
+        }
+        return create_content_length_entity_reader(conn, (size_t)content_length);
+    }
+    /* failed */
+    return -1;
+}
+
+static ssize_t init_headers(h2o_mem_pool_t *pool, h2o_headers_t *headers, const struct phr_header *src, size_t len,
+                            h2o_iovec_t *connection, h2o_iovec_t *host, h2o_iovec_t *upgrade, h2o_iovec_t *expect)
+{
+    ssize_t entity_header_index = -1;
+
+    assert(headers->size == 0);
+
+    /* setup */
+    if (len != 0) {
+        size_t i;
+        h2o_vector_reserve(pool, headers, len);
+        for (i = 0; i != len; ++i) {
+            const h2o_token_t *name_token;
+            char orig_case[src[i].name_len];
+
+            /* preserve the original case */
+            memcpy(orig_case, src[i].name, src[i].name_len);
+            /* convert to lower-case in-place */
+            h2o_strtolower((char *)src[i].name, src[i].name_len);
+            if ((name_token = h2o_lookup_token(src[i].name, src[i].name_len)) != NULL) {
+                if (name_token->is_init_header_special) {
+                    if (name_token == H2O_TOKEN_HOST) {
+                        host->base = (char *)src[i].value;
+                        host->len = src[i].value_len;
+                    } else if (name_token == H2O_TOKEN_CONTENT_LENGTH) {
+                        if (entity_header_index == -1)
+                            entity_header_index = i;
+                    } else if (name_token == H2O_TOKEN_TRANSFER_ENCODING) {
+                        entity_header_index = i;
+                    } else if (name_token == H2O_TOKEN_EXPECT) {
+                        expect->base = (char *)src[i].value;
+                        expect->len = src[i].value_len;
+                    } else if (name_token == H2O_TOKEN_UPGRADE) {
+                        upgrade->base = (char *)src[i].value;
+                        upgrade->len = src[i].value_len;
+                    } else {
+                        assert(!"logic flaw");
+                    }
+                } else {
+                    h2o_add_header(pool, headers, name_token, orig_case, src[i].value, src[i].value_len);
+                    if (name_token == H2O_TOKEN_CONNECTION)
+                        *connection = headers->entries[headers->size - 1].value;
+                }
+            } else {
+                h2o_add_header_by_str(pool, headers, src[i].name, src[i].name_len, 0, orig_case, src[i].value, src[i].value_len);
+            }
+        }
+    }
+
+    return entity_header_index;
+}
+
+static ssize_t fixup_request(struct st_h2o_http1_conn_t *conn, struct phr_header *headers, size_t num_headers, int minor_version,
+                             h2o_iovec_t *expect)
+{
+    ssize_t entity_header_index;
+    h2o_iovec_t connection = {NULL, 0}, host = {NULL, 0}, upgrade = {NULL, 0};
+
+    expect->base = NULL;
+    expect->len = 0;
+
+    conn->req.input.scheme = conn->sock->ssl != NULL ? &H2O_URL_SCHEME_HTTPS : &H2O_URL_SCHEME_HTTP;
+    conn->req.version = 0x100 | (minor_version != 0);
+
+    /* init headers */
+    entity_header_index =
+        init_headers(&conn->req.pool, &conn->req.headers, headers, num_headers, &connection, &host, &upgrade, expect);
+
+    /* copy the values to pool, since the buffer pointed by the headers may get realloced */
+    if (entity_header_index != -1) {
+        size_t i;
+        conn->req.input.method = h2o_strdup(&conn->req.pool, conn->req.input.method.base, conn->req.input.method.len);
+        conn->req.input.path = h2o_strdup(&conn->req.pool, conn->req.input.path.base, conn->req.input.path.len);
+        for (i = 0; i != conn->req.headers.size; ++i) {
+            h2o_header_t *header = conn->req.headers.entries + i;
+            if (!h2o_iovec_is_token(header->name)) {
+                *header->name = h2o_strdup(&conn->req.pool, header->name->base, header->name->len);
+            }
+            header->value = h2o_strdup(&conn->req.pool, header->value.base, header->value.len);
+        }
+        if (host.base != NULL)
+            host = h2o_strdup(&conn->req.pool, host.base, host.len);
+        if (upgrade.base != NULL)
+            upgrade = h2o_strdup(&conn->req.pool, upgrade.base, upgrade.len);
+    }
+
+    /* move host header to req->authority */
+    if (host.base != NULL)
+        conn->req.input.authority = host;
+
+    /* setup persistent flag (and upgrade info) */
+    if (connection.base != NULL) {
+        /* TODO contains_token function can be faster */
+        if (h2o_contains_token(connection.base, connection.len, H2O_STRLIT("keep-alive"), ',')) {
+            conn->req.http1_is_persistent = 1;
+        }
+        if (upgrade.base != NULL && h2o_contains_token(connection.base, connection.len, H2O_STRLIT("upgrade"), ',')) {
+            conn->req.upgrade = upgrade;
+        }
+    } else if (conn->req.version >= 0x101) {
+        /* defaults to keep-alive if >= HTTP/1.1 */
+        conn->req.http1_is_persistent = 1;
+    }
+    /* disable keep-alive if shutdown is requested */
+    if (conn->req.http1_is_persistent && conn->super.ctx->shutdown_requested)
+        conn->req.http1_is_persistent = 0;
+
+    return entity_header_index;
+}
+
+static void on_continue_sent(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_http1_conn_t *conn = sock->data;
+
+    if (err != NULL) {
+        close_connection(conn, 1);
+        return;
+    }
+
+    h2o_socket_read_start(sock, reqread_on_read);
+    conn->_req_entity_reader->handle_incoming_entity(conn);
+}
+
+static int contains_crlf_only(const char *s, size_t len)
+{
+    for (; len != 0; ++s, --len)
+        if (!(*s == '\r' || *s == '\n'))
+            return 0;
+    return 1;
+}
+
+static void send_bad_request_on_complete(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_http1_conn_t *conn = sock->data;
+    close_connection(conn, 1);
+}
+
+static void send_bad_request(struct st_h2o_http1_conn_t *conn)
+{
+    const static h2o_iovec_t resp = {H2O_STRLIT("HTTP/1.1 400 Bad Request\r\n"
+                                                "Content-Type: text/plain; charset=utf-8\r\n"
+                                                "Connection: close\r\n"
+                                                "Content-Length: 11\r\n"
+                                                "\r\n"
+                                                "Bad Request")};
+
+    assert(conn->req.version == 0 && "request has not been parsed successfully");
+    assert(conn->req.http1_is_persistent == 0);
+    h2o_socket_write(conn->sock, (h2o_iovec_t *)&resp, 1, send_bad_request_on_complete);
+    h2o_socket_read_stop(conn->sock);
+}
+
+static void handle_incoming_request(struct st_h2o_http1_conn_t *conn)
+{
+    size_t inreqlen = conn->sock->input->size < H2O_MAX_REQLEN ? conn->sock->input->size : H2O_MAX_REQLEN;
+    int reqlen, minor_version;
+    struct phr_header headers[H2O_MAX_HEADERS];
+    size_t num_headers = H2O_MAX_HEADERS;
+    ssize_t entity_body_header_index;
+    h2o_iovec_t expect;
+
+    /* need to set request_begin_at here for keep-alive connection */
+    if (conn->req.timestamps.request_begin_at.tv_sec == 0)
+        conn->req.timestamps.request_begin_at = *h2o_get_timestamp(conn->super.ctx, NULL, NULL);
+
+    reqlen = phr_parse_request(conn->sock->input->bytes, inreqlen, (const char **)&conn->req.input.method.base,
+                               &conn->req.input.method.len, (const char **)&conn->req.input.path.base, &conn->req.input.path.len,
+                               &minor_version, headers, &num_headers, conn->_prevreqlen);
+    conn->_prevreqlen = inreqlen;
+
+    switch (reqlen) {
+    default: // parse complete
+        conn->_reqsize = reqlen;
+        if ((entity_body_header_index = fixup_request(conn, headers, num_headers, minor_version, &expect)) != -1) {
+            conn->req.timestamps.request_body_begin_at = *h2o_get_timestamp(conn->super.ctx, NULL, NULL);
+            if (expect.base != NULL) {
+                if (!h2o_lcstris(expect.base, expect.len, H2O_STRLIT("100-continue"))) {
+                    set_timeout(conn, NULL, NULL);
+                    h2o_socket_read_stop(conn->sock);
+                    h2o_send_error_417(&conn->req, "Expectation Failed", "unknown expectation",
+                                       H2O_SEND_ERROR_HTTP1_CLOSE_CONNECTION);
+                    return;
+                }
+            }
+            if (create_entity_reader(conn, headers + entity_body_header_index) != 0) {
+                return;
+            }
+            if (expect.base != NULL) {
+                static const h2o_iovec_t res = {H2O_STRLIT("HTTP/1.1 100 Continue\r\n\r\n")};
+                h2o_socket_write(conn->sock, (void *)&res, 1, on_continue_sent);
+                /* processing of the incoming entity is postponed until the 100 response is sent */
+                h2o_socket_read_stop(conn->sock);
+                return;
+            }
+            conn->_req_entity_reader->handle_incoming_entity(conn);
+        } else {
+            set_timeout(conn, NULL, NULL);
+            h2o_socket_read_stop(conn->sock);
+            process_request(conn);
+        }
+        return;
+    case -2: // incomplete
+        if (inreqlen == H2O_MAX_REQLEN) {
+            send_bad_request(conn);
+        }
+        return;
+    case -1: // error
+        /* upgrade to HTTP/2 if the request starts with: PRI * HTTP/2 */
+        if (conn->super.ctx->globalconf->http1.upgrade_to_http2) {
+            /* should check up to the first octet that phr_parse_request returns an error */
+            static const h2o_iovec_t HTTP2_SIG = {H2O_STRLIT("PRI * HTTP/2")};
+            if (conn->sock->input->size >= HTTP2_SIG.len && memcmp(conn->sock->input->bytes, HTTP2_SIG.base, HTTP2_SIG.len) == 0) {
+                h2o_accept_ctx_t accept_ctx = {conn->super.ctx, conn->super.hosts};
+                h2o_socket_t *sock = conn->sock;
+                struct timeval connected_at = conn->super.connected_at;
+                /* destruct the connection after detatching the socket */
+                conn->sock = NULL;
+                close_connection(conn, 1);
+                /* and accept as http2 connection */
+                h2o_http2_accept(&accept_ctx, sock, connected_at);
+                return;
+            }
+        }
+        if (inreqlen <= 4 && contains_crlf_only(conn->sock->input->bytes, inreqlen)) {
+            close_connection(conn, 1);
+        } else {
+            send_bad_request(conn);
+        }
+        return;
+    }
+}
+
+void reqread_on_read(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_http1_conn_t *conn = sock->data;
+
+    if (err != NULL) {
+        close_connection(conn, 1);
+        return;
+    }
+
+    if (conn->_req_entity_reader == NULL)
+        handle_incoming_request(conn);
+    else
+        conn->_req_entity_reader->handle_incoming_entity(conn);
+}
+
+static void reqread_on_timeout(h2o_timeout_entry_t *entry)
+{
+    struct st_h2o_http1_conn_t *conn = H2O_STRUCT_FROM_MEMBER(struct st_h2o_http1_conn_t, _timeout_entry, entry);
+
+    /* TODO log */
+    conn->req.http1_is_persistent = 0;
+    close_connection(conn, 1);
+}
+
+static inline void reqread_start(struct st_h2o_http1_conn_t *conn)
+{
+    set_timeout(conn, &conn->super.ctx->http1.req_timeout, reqread_on_timeout);
+    h2o_socket_read_start(conn->sock, reqread_on_read);
+    if (conn->sock->input->size != 0)
+        handle_incoming_request(conn);
+}
+
+static void on_send_next_push(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_http1_conn_t *conn = sock->data;
+
+    if (err != NULL)
+        close_connection(conn, 1);
+    else
+        h2o_proceed_response(&conn->req);
+}
+
+static void on_send_next_pull(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_http1_conn_t *conn = sock->data;
+
+    if (err != NULL)
+        close_connection(conn, 1);
+    else
+        proceed_pull(conn, 0);
+}
+
+static void on_send_complete(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_http1_conn_t *conn = sock->data;
+
+    assert(conn->req._ostr_top == &conn->_ostr_final.super);
+
+    conn->req.timestamps.response_end_at = *h2o_get_timestamp(conn->super.ctx, NULL, NULL);
+
+    if (!conn->req.http1_is_persistent) {
+        /* TODO use lingering close */
+        close_connection(conn, 1);
+        return;
+    }
+
+    /* handle next request */
+    init_request(conn, 1);
+    h2o_buffer_consume(&conn->sock->input, conn->_reqsize);
+    conn->_prevreqlen = 0;
+    conn->_reqsize = 0;
+    reqread_start(conn);
+}
+
+static void on_upgrade_complete(h2o_socket_t *socket, const char *err)
+{
+    struct st_h2o_http1_conn_t *conn = socket->data;
+    h2o_http1_upgrade_cb cb = conn->upgrade.cb;
+    void *data = conn->upgrade.data;
+    h2o_socket_t *sock = NULL;
+    size_t reqsize = 0;
+
+    /* destruct the connection (after detaching the socket) */
+    if (err == 0) {
+        sock = conn->sock;
+        reqsize = conn->_reqsize;
+        close_connection(conn, 0);
+    } else {
+        close_connection(conn, 1);
+    }
+
+    cb(data, sock, reqsize);
+}
+
+static size_t flatten_headers_estimate_size(h2o_req_t *req, size_t server_name_and_connection_len)
+{
+    size_t len = sizeof("HTTP/1.1  \r\ndate: \r\nserver: \r\nconnection: \r\ncontent-length: \r\n\r\n") + 3 +
+                 strlen(req->res.reason) + H2O_TIMESTR_RFC1123_LEN + server_name_and_connection_len +
+                 sizeof(H2O_UINT64_LONGEST_STR) - 1 + sizeof("cache-control: private") - 1;
+    const h2o_header_t *header, *end;
+
+    for (header = req->res.headers.entries, end = header + req->res.headers.size; header != end; ++header)
+        len += header->name->len + header->value.len + 4;
+
+    return len;
+}
+
+static size_t flatten_headers(char *buf, h2o_req_t *req, const char *connection)
+{
+    h2o_context_t *ctx = req->conn->ctx;
+    h2o_timestamp_t ts;
+    char *dst = buf;
+
+    h2o_get_timestamp(ctx, &req->pool, &ts);
+
+    assert(req->res.status <= 999);
+
+    /* send essential headers with the first chars uppercased for max. interoperability (#72) */
+    if (req->res.content_length != SIZE_MAX) {
+        dst += sprintf(dst, "HTTP/1.1 %d %s\r\nDate: %s\r\nConnection: %s\r\nContent-Length: %zu\r\n", req->res.status,
+                       req->res.reason, ts.str->rfc1123, connection, req->res.content_length);
+    } else {
+        dst += sprintf(dst, "HTTP/1.1 %d %s\r\nDate: %s\r\nConnection: %s\r\n", req->res.status, req->res.reason, ts.str->rfc1123,
+                       connection);
+    }
+    if (ctx->globalconf->server_name.len) {
+        dst += sprintf(dst, "Server: %s\r\n", ctx->globalconf->server_name.base);
+    }
+
+    { /* flatten the normal headers */
+        size_t i;
+        for (i = 0; i != req->res.headers.size; ++i) {
+            const h2o_header_t *header = req->res.headers.entries + i;
+            if (header->name == &H2O_TOKEN_VARY->buf) {
+                /* replace Vary with Cache-Control: private; see the following URLs to understand why this is necessary
+                 * - http://blogs.msdn.com/b/ieinternals/archive/2009/06/17/vary-header-prevents-caching-in-ie.aspx
+                 * - https://www.igvita.com/2013/05/01/deploying-webp-via-accept-content-negotiation/
+                 */
+                if (is_msie(req)) {
+                    static h2o_header_t cache_control_private = {&H2O_TOKEN_CACHE_CONTROL->buf, NULL, {H2O_STRLIT("private")}};
+                    header = &cache_control_private;
+                }
+            }
+            memcpy(dst, header->orig_name ? header->orig_name : header->name->base, header->name->len);
+            dst += header->name->len;
+            *dst++ = ':';
+            *dst++ = ' ';
+            memcpy(dst, header->value.base, header->value.len);
+            dst += header->value.len;
+            *dst++ = '\r';
+            *dst++ = '\n';
+        }
+        *dst++ = '\r';
+        *dst++ = '\n';
+    }
+
+    return dst - buf;
+}
+
+static void proceed_pull(struct st_h2o_http1_conn_t *conn, size_t nfilled)
+{
+    h2o_iovec_t buf = {conn->_ostr_final.pull.buf, nfilled};
+    h2o_send_state_t send_state;
+
+    if (buf.len < MAX_PULL_BUF_SZ) {
+        h2o_iovec_t cbuf = {buf.base + buf.len, MAX_PULL_BUF_SZ - buf.len};
+        send_state = h2o_pull(&conn->req, conn->_ostr_final.pull.cb, &cbuf);
+        if (send_state == H2O_SEND_STATE_ERROR) {
+            conn->req.http1_is_persistent = 0;
+        }
+        buf.len += cbuf.len;
+        conn->req.bytes_sent += cbuf.len;
+    } else {
+        send_state = H2O_SEND_STATE_IN_PROGRESS;
+    }
+
+    /* write */
+    h2o_socket_write(conn->sock, &buf, 1, h2o_send_state_is_in_progress(send_state) ? on_send_next_pull : on_send_complete);
+}
+
+static void finalostream_start_pull(h2o_ostream_t *_self, h2o_ostream_pull_cb cb)
+{
+    struct st_h2o_http1_conn_t *conn = H2O_STRUCT_FROM_MEMBER(struct st_h2o_http1_conn_t, _ostr_final.super, _self);
+    const char *connection = conn->req.http1_is_persistent ? "keep-alive" : "close";
+    size_t bufsz, headers_len;
+
+    assert(conn->req._ostr_top == &conn->_ostr_final.super);
+    assert(!conn->_ostr_final.sent_headers);
+
+    conn->req.timestamps.response_start_at = *h2o_get_timestamp(conn->super.ctx, NULL, NULL);
+
+    /* register the pull callback */
+    conn->_ostr_final.pull.cb = cb;
+
+    /* setup the buffer */
+    bufsz = flatten_headers_estimate_size(&conn->req, conn->super.ctx->globalconf->server_name.len + strlen(connection));
+    if (bufsz < MAX_PULL_BUF_SZ) {
+        if (MAX_PULL_BUF_SZ - bufsz < conn->req.res.content_length) {
+            bufsz = MAX_PULL_BUF_SZ;
+        } else {
+            bufsz += conn->req.res.content_length;
+        }
+    }
+    conn->_ostr_final.pull.buf = h2o_mem_alloc_pool(&conn->req.pool, bufsz);
+
+    /* fill-in the header */
+    headers_len = flatten_headers(conn->_ostr_final.pull.buf, &conn->req, connection);
+    conn->_ostr_final.sent_headers = 1;
+
+    proceed_pull(conn, headers_len);
+}
+
+void finalostream_send(h2o_ostream_t *_self, h2o_req_t *req, h2o_iovec_t *inbufs, size_t inbufcnt, h2o_send_state_t send_state)
+{
+    struct st_h2o_http1_finalostream_t *self = (void *)_self;
+    struct st_h2o_http1_conn_t *conn = (struct st_h2o_http1_conn_t *)req->conn;
+    h2o_iovec_t *bufs = alloca(sizeof(h2o_iovec_t) * (inbufcnt + 1));
+    int i;
+    int bufcnt = 0;
+
+    assert(self == &conn->_ostr_final);
+
+    /* count bytes_sent if other ostreams haven't counted */
+    if (req->bytes_counted_by_ostream == 0) {
+        for (i = 0; i != inbufcnt; ++i) {
+            req->bytes_sent += inbufs[i].len;
+        }
+    }
+
+    if (!self->sent_headers) {
+        conn->req.timestamps.response_start_at = *h2o_get_timestamp(conn->super.ctx, NULL, NULL);
+        /* build headers and send */
+        const char *connection = req->http1_is_persistent ? "keep-alive" : "close";
+        bufs[bufcnt].base = h2o_mem_alloc_pool(
+            &req->pool, flatten_headers_estimate_size(req, conn->super.ctx->globalconf->server_name.len + strlen(connection)));
+        bufs[bufcnt].len = flatten_headers(bufs[bufcnt].base, req, connection);
+        ++bufcnt;
+        self->sent_headers = 1;
+    }
+    memcpy(bufs + bufcnt, inbufs, sizeof(h2o_iovec_t) * inbufcnt);
+    bufcnt += inbufcnt;
+
+    if (send_state == H2O_SEND_STATE_ERROR) {
+        conn->req.http1_is_persistent = 0;
+    }
+
+    if (bufcnt != 0) {
+        h2o_socket_write(conn->sock, bufs, bufcnt,
+                         h2o_send_state_is_in_progress(send_state) ? on_send_next_push : on_send_complete);
+    } else {
+        on_send_complete(conn->sock, 0);
+    }
+}
+
+static socklen_t get_sockname(h2o_conn_t *_conn, struct sockaddr *sa)
+{
+    struct st_h2o_http1_conn_t *conn = (void *)_conn;
+    return h2o_socket_getsockname(conn->sock, sa);
+}
+
+static socklen_t get_peername(h2o_conn_t *_conn, struct sockaddr *sa)
+{
+    struct st_h2o_http1_conn_t *conn = (void *)_conn;
+    return h2o_socket_getpeername(conn->sock, sa);
+}
+
+static h2o_socket_t *get_socket(h2o_conn_t *_conn)
+{
+    struct st_h2o_http1_conn_t *conn = (void *)_conn;
+    return conn->sock;
+}
+
+#define DEFINE_TLS_LOGGER(name)                                                                                                    \
+    static h2o_iovec_t log_##name(h2o_req_t *req)                                                                                  \
+    {                                                                                                                              \
+        struct st_h2o_http1_conn_t *conn = (void *)req->conn;                                                                      \
+        return h2o_socket_log_ssl_##name(conn->sock, &req->pool);                                                                  \
+    }
+
+DEFINE_TLS_LOGGER(protocol_version)
+DEFINE_TLS_LOGGER(session_reused)
+DEFINE_TLS_LOGGER(cipher)
+DEFINE_TLS_LOGGER(cipher_bits)
+DEFINE_TLS_LOGGER(session_id)
+
+#undef DEFINE_TLS_LOGGER
+
+static h2o_iovec_t log_request_index(h2o_req_t *req)
+{
+    struct st_h2o_http1_conn_t *conn = (void *)req->conn;
+    char *s = h2o_mem_alloc_pool(&req->pool, sizeof(H2O_UINT64_LONGEST_STR));
+    size_t len = sprintf(s, "%" PRIu64, conn->_req_index);
+    return h2o_iovec_init(s, len);
+}
+
+static int foreach_request(h2o_context_t *ctx, int (*cb)(h2o_req_t *req, void *cbdata), void *cbdata)
+{
+    h2o_linklist_t *node;
+
+    for (node = ctx->http1._conns.next; node != &ctx->http1._conns; node = node->next) {
+        struct st_h2o_http1_conn_t *conn = H2O_STRUCT_FROM_MEMBER(struct st_h2o_http1_conn_t, _conns, node);
+        int ret = cb(&conn->req, cbdata);
+        if (ret != 0)
+            return ret;
+    }
+    return 0;
+}
+
+void h2o_http1_accept(h2o_accept_ctx_t *ctx, h2o_socket_t *sock, struct timeval connected_at)
+{
+    static const h2o_conn_callbacks_t callbacks = {
+        get_sockname, /* stringify address */
+        get_peername, /* ditto */
+        NULL,         /* push */
+        get_socket,   /* get underlying socket */
+        NULL,         /* get debug state */
+        {{
+            {log_protocol_version, log_session_reused, log_cipher, log_cipher_bits, log_session_id}, /* ssl */
+            {log_request_index},                                                                     /* http1 */
+            {NULL}                                                                                   /* http2 */
+        }}};
+    struct st_h2o_http1_conn_t *conn = (void *)h2o_create_connection(sizeof(*conn), ctx->ctx, ctx->hosts, connected_at, &callbacks);
+
+    /* zero-fill all properties expect req */
+    memset((char *)conn + sizeof(conn->super), 0, offsetof(struct st_h2o_http1_conn_t, req) - sizeof(conn->super));
+
+    /* init properties that need to be non-zero */
+    conn->super.ctx = ctx->ctx;
+    conn->super.hosts = ctx->hosts;
+    conn->super.connected_at = connected_at;
+    conn->super.callbacks = &callbacks;
+    conn->sock = sock;
+    sock->data = conn;
+    h2o_linklist_insert(&ctx->ctx->http1._conns, &conn->_conns);
+
+    init_request(conn, 0);
+    reqread_start(conn);
+}
+
+void h2o_http1_upgrade(h2o_req_t *req, h2o_iovec_t *inbufs, size_t inbufcnt, h2o_http1_upgrade_cb on_complete, void *user_data)
+{
+    struct st_h2o_http1_conn_t *conn = (void *)req->conn;
+
+    assert(req->version <= 0x200); /* TODO find a better way to assert instanceof(req->conn) == struct st_h2o_http1_conn_t */
+
+    h2o_iovec_t *bufs = alloca(sizeof(h2o_iovec_t) * (inbufcnt + 1));
+
+    conn->upgrade.data = user_data;
+    conn->upgrade.cb = on_complete;
+
+    bufs[0].base =
+        h2o_mem_alloc_pool(&conn->req.pool, flatten_headers_estimate_size(&conn->req, conn->super.ctx->globalconf->server_name.len +
+                                                                                          sizeof("upgrade") - 1));
+    bufs[0].len = flatten_headers(bufs[0].base, &conn->req, "upgrade");
+    h2o_memcpy(bufs + 1, inbufs, sizeof(h2o_iovec_t) * inbufcnt);
+
+    h2o_socket_write(conn->sock, bufs, inbufcnt + 1, on_upgrade_complete);
+}
diff --git a/debian/vendor-h2o/lib/http2/cache_digests.c b/debian/vendor-h2o/lib/http2/cache_digests.c
new file mode 100644
index 0000000..fa28bd2
--- /dev/null
+++ b/debian/vendor-h2o/lib/http2/cache_digests.c
@@ -0,0 +1,201 @@
+/*
+ * Copyright (c) 2016 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <limits.h>
+#include <openssl/sha.h>
+#include <stdlib.h>
+#include "golombset.h"
+#include "h2o/string_.h"
+#include "h2o/cache_digests.h"
+
+struct st_h2o_cache_digests_frame_t {
+    H2O_VECTOR(uint64_t) keys;
+    unsigned capacity_bits;
+};
+
+static void dispose_frame_vector(h2o_cache_digests_frame_vector_t *v)
+{
+    size_t i;
+    for (i = 0; i != v->size; ++i)
+        free(v->entries[i].keys.entries);
+    free(v->entries);
+}
+
+static void dispose_digests(h2o_cache_digests_t *digests)
+{
+    dispose_frame_vector(&digests->fresh.url_only);
+    dispose_frame_vector(&digests->fresh.url_and_etag);
+}
+
+void h2o_cache_digests_destroy(h2o_cache_digests_t *digests)
+{
+    dispose_digests(digests);
+    free(digests);
+}
+
+static void load_digest(h2o_cache_digests_t **digests, const char *gcs_base64, size_t gcs_base64_len, int with_validators,
+                        int complete)
+{
+    h2o_cache_digests_frame_t frame = {{NULL}};
+    h2o_iovec_t gcs_bin;
+    struct st_golombset_decode_t ctx = {NULL};
+    uint64_t nbits, pbits;
+
+    /* decode base64 */
+    if ((gcs_bin = h2o_decode_base64url(NULL, gcs_base64, gcs_base64_len)).base == NULL)
+        goto Exit;
+
+    /* prepare GCS context */
+    ctx.src = (void *)(gcs_bin.base - 1);
+    ctx.src_max = (void *)(gcs_bin.base + gcs_bin.len);
+    ctx.src_shift = 0;
+
+    /* decode nbits and pbits */
+    if (golombset_decode_bits(&ctx, 5, &nbits) != 0 || golombset_decode_bits(&ctx, 5, &pbits) != 0)
+        goto Exit;
+    frame.capacity_bits = (unsigned)(nbits + pbits);
+
+    /* decode the values */
+    uint64_t value = UINT64_MAX, decoded;
+    while (golombset_decode_value(&ctx, (unsigned)pbits, &decoded) == 0) {
+        value += decoded + 1;
+        if (value >= (uint64_t)1 << frame.capacity_bits)
+            goto Exit;
+        h2o_vector_reserve(NULL, &frame.keys, frame.keys.size + 1);
+        frame.keys.entries[frame.keys.size++] = value;
+    }
+
+    /* store the result */
+    if (*digests == NULL) {
+        *digests = h2o_mem_alloc(sizeof(**digests));
+        **digests = (h2o_cache_digests_t){{{NULL}}};
+    }
+    h2o_cache_digests_frame_vector_t *target = with_validators ? &(*digests)->fresh.url_and_etag : &(*digests)->fresh.url_only;
+    h2o_vector_reserve(NULL, target, target->size + 1);
+    target->entries[target->size++] = frame;
+    frame = (h2o_cache_digests_frame_t){{NULL}};
+    (*digests)->fresh.complete = complete;
+
+Exit:
+    free(frame.keys.entries);
+    free(gcs_bin.base);
+}
+
+void h2o_cache_digests_load_header(h2o_cache_digests_t **digests, const char *value, size_t len)
+{
+    h2o_iovec_t iter = h2o_iovec_init(value, len);
+    const char *token;
+    size_t token_len;
+
+    do {
+        const char *gcs_base64;
+        size_t gcs_base64_len;
+        int reset = 0, validators = 0, complete = 0, skip = 0;
+        h2o_iovec_t token_value;
+
+        if ((gcs_base64 = h2o_next_token(&iter, ';', &gcs_base64_len, NULL)) == NULL)
+            return;
+        while ((token = h2o_next_token(&iter, ';', &token_len, &token_value)) != NULL &&
+               !h2o_memis(token, token_len, H2O_STRLIT(","))) {
+            if (h2o_lcstris(token, token_len, H2O_STRLIT("reset"))) {
+                reset = 1;
+            } else if (h2o_lcstris(token, token_len, H2O_STRLIT("validators"))) {
+                validators = 1;
+            } else if (h2o_lcstris(token, token_len, H2O_STRLIT("complete"))) {
+                complete = 1;
+            } else {
+                skip = 1;
+            }
+        }
+
+        if (reset && *digests != NULL) {
+            h2o_cache_digests_destroy(*digests);
+            *digests = NULL;
+        }
+
+        if (skip) {
+            /* not supported for the time being */
+        } else {
+            load_digest(digests, gcs_base64, gcs_base64_len, validators, complete);
+        }
+    } while (token != NULL);
+}
+
+static uint64_t calc_hash(const char *url, size_t url_len, const char *etag, size_t etag_len)
+{
+    SHA256_CTX ctx;
+    union {
+        unsigned char bytes[SHA256_DIGEST_LENGTH];
+        uint64_t u64;
+    } md;
+
+    SHA256_Init(&ctx);
+    SHA256_Update(&ctx, url, url_len);
+    SHA256_Update(&ctx, etag, etag_len);
+    SHA256_Final(md.bytes, &ctx);
+
+    if (*(uint16_t *)"\xde\xad" == 0xdead)
+        return md.u64;
+    else
+        return __builtin_bswap64(md.u64);
+}
+
+static int cmp_key(const void *_x, const void *_y)
+{
+    uint64_t x = *(uint64_t *)_x, y = *(uint64_t *)_y;
+
+    if (x < y) {
+        return -1;
+    } else if (x > y) {
+        return 1;
+    } else {
+        return 0;
+    }
+}
+
+static int lookup(h2o_cache_digests_frame_vector_t *vector, const char *url, size_t url_len, const char *etag, size_t etag_len,
+                  int is_fresh, int is_complete)
+{
+    if (vector->size != 0) {
+        uint64_t hash = calc_hash(url, url_len, etag, etag_len);
+        size_t i = 0;
+        do {
+            h2o_cache_digests_frame_t *frame = vector->entries + i;
+            uint64_t key = hash >> (64 - frame->capacity_bits);
+            if (frame->keys.entries != NULL &&
+                bsearch(&key, frame->keys.entries, frame->keys.size, sizeof(frame->keys.entries[0]), cmp_key) != NULL)
+                return is_fresh ? H2O_CACHE_DIGESTS_STATE_FRESH : H2O_CACHE_DIGESTS_STATE_STALE;
+        } while (++i != vector->size);
+    }
+
+    return is_complete ? H2O_CACHE_DIGESTS_STATE_NOT_CACHED : H2O_CACHE_DIGESTS_STATE_UNKNOWN;
+}
+
+h2o_cache_digests_state_t h2o_cache_digests_lookup_by_url(h2o_cache_digests_t *digests, const char *url, size_t url_len)
+{
+    return lookup(&digests->fresh.url_only, url, url_len, "", 0, 1, digests->fresh.complete);
+}
+
+h2o_cache_digests_state_t h2o_cache_digests_lookup_by_url_and_etag(h2o_cache_digests_t *digests, const char *url, size_t url_len,
+                                                                   const char *etag, size_t etag_len)
+{
+    return lookup(&digests->fresh.url_and_etag, url, url_len, etag, etag_len, 1, digests->fresh.complete);
+}
diff --git a/debian/vendor-h2o/lib/http2/casper.c b/debian/vendor-h2o/lib/http2/casper.c
new file mode 100644
index 0000000..56e00d7
--- /dev/null
+++ b/debian/vendor-h2o/lib/http2/casper.c
@@ -0,0 +1,205 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <openssl/sha.h>
+#include "golombset.h"
+#include "h2o/string_.h"
+#include "h2o/http2_casper.h"
+
+#define COOKIE_NAME "h2o_casper"
+#define COOKIE_ATTRIBUTES "; Path=/; Expires=Tue, 01 Jan 2030 00:00:00 GMT; Secure"
+
+struct st_h2o_http2_casper_t {
+    H2O_VECTOR(uint64_t) keys;
+    unsigned capacity_bits;
+    unsigned remainder_bits;
+    h2o_iovec_t cookie_cache;
+};
+
+static unsigned calc_key(h2o_http2_casper_t *casper, const char *path, size_t path_len)
+{
+    SHA_CTX ctx;
+    SHA1_Init(&ctx);
+    SHA1_Update(&ctx, path, path_len);
+
+    union {
+        unsigned key;
+        unsigned char bytes[SHA_DIGEST_LENGTH];
+    } md;
+    SHA1_Final(md.bytes, &ctx);
+
+    return md.key & ((1 << casper->capacity_bits) - 1);
+}
+
+h2o_http2_casper_t *h2o_http2_casper_create(unsigned capacity_bits, unsigned remainder_bits)
+{
+    h2o_http2_casper_t *casper = h2o_mem_alloc(sizeof(*casper));
+
+    memset(&casper->keys, 0, sizeof(casper->keys));
+    casper->capacity_bits = capacity_bits;
+    casper->remainder_bits = remainder_bits;
+    casper->cookie_cache = (h2o_iovec_t){NULL};
+
+    return casper;
+}
+
+void h2o_http2_casper_destroy(h2o_http2_casper_t *casper)
+{
+    free(casper->keys.entries);
+    free(casper->cookie_cache.base);
+    free(casper);
+}
+
+size_t h2o_http2_casper_num_entries(h2o_http2_casper_t *casper)
+{
+    return casper->keys.size;
+}
+
+int h2o_http2_casper_lookup(h2o_http2_casper_t *casper, const char *path, size_t path_len, int set)
+{
+    unsigned key = calc_key(casper, path, path_len);
+    size_t i;
+
+    /* FIXME use binary search */
+    for (i = 0; i != casper->keys.size; ++i)
+        if (key <= casper->keys.entries[i])
+            break;
+    if (i != casper->keys.size && key == casper->keys.entries[i])
+        return 1;
+    if (!set)
+        return 0;
+
+    /* we need to set a new value */
+    free(casper->cookie_cache.base);
+    casper->cookie_cache = (h2o_iovec_t){NULL};
+    h2o_vector_reserve(NULL, &casper->keys, casper->keys.size + 1);
+    memmove(casper->keys.entries + i + 1, casper->keys.entries + i, (casper->keys.size - i) * sizeof(casper->keys.entries[0]));
+    ++casper->keys.size;
+    casper->keys.entries[i] = key;
+    return 0;
+}
+
+void h2o_http2_casper_consume_cookie(h2o_http2_casper_t *casper, const char *cookie, size_t cookie_len)
+{
+    h2o_iovec_t binary = {NULL};
+    uint64_t tiny_keys_buf[128], *keys = tiny_keys_buf;
+
+    /* check the name of the cookie */
+    if (!(cookie_len > sizeof(COOKIE_NAME "=") - 1 && memcmp(cookie, H2O_STRLIT(COOKIE_NAME "=")) == 0))
+        goto Exit;
+
+    /* base64 decode */
+    if ((binary = h2o_decode_base64url(NULL, cookie + sizeof(COOKIE_NAME "=") - 1, cookie_len - (sizeof(COOKIE_NAME "=") - 1)))
+            .base == NULL)
+        goto Exit;
+
+    /* decode GCS, either using tiny_keys_buf or using heap */
+    size_t capacity = sizeof(tiny_keys_buf) / sizeof(tiny_keys_buf[0]), num_keys;
+    while (num_keys = capacity, golombset_decode(casper->remainder_bits, binary.base, binary.len, keys, &num_keys) != 0) {
+        if (keys != tiny_keys_buf) {
+            free(keys);
+            keys = tiny_keys_buf; /* reset to something that would not trigger call to free(3) */
+        }
+        if (capacity >= (size_t)1 << casper->capacity_bits)
+            goto Exit;
+        capacity *= 2;
+        keys = h2o_mem_alloc(capacity * sizeof(*keys));
+    }
+
+    /* copy or merge the entries */
+    if (num_keys == 0) {
+        /* nothing to do */
+    } else if (casper->keys.size == 0) {
+        h2o_vector_reserve(NULL, &casper->keys, num_keys);
+        memcpy(casper->keys.entries, keys, num_keys * sizeof(*keys));
+        casper->keys.size = num_keys;
+    } else {
+        uint64_t *orig_keys = casper->keys.entries;
+        size_t num_orig_keys = casper->keys.size, orig_index = 0, new_index = 0;
+        memset(&casper->keys, 0, sizeof(casper->keys));
+        h2o_vector_reserve(NULL, &casper->keys, num_keys + num_orig_keys);
+        do {
+            if (orig_keys[orig_index] < keys[new_index]) {
+                casper->keys.entries[casper->keys.size++] = orig_keys[orig_index++];
+            } else if (orig_keys[orig_index] > keys[new_index]) {
+                casper->keys.entries[casper->keys.size++] = keys[new_index++];
+            } else {
+                casper->keys.entries[casper->keys.size++] = orig_keys[orig_index];
+                ++orig_index;
+                ++new_index;
+            }
+        } while (orig_index != num_orig_keys && new_index != num_keys);
+        if (orig_index != num_orig_keys) {
+            do {
+                casper->keys.entries[casper->keys.size++] = orig_keys[orig_index++];
+            } while (orig_index != num_orig_keys);
+        } else if (new_index != num_keys) {
+            do {
+                casper->keys.entries[casper->keys.size++] = keys[new_index++];
+            } while (new_index != num_keys);
+        }
+        free(orig_keys);
+    }
+
+Exit:
+    if (keys != tiny_keys_buf)
+        free(keys);
+    free(binary.base);
+}
+
+static size_t append_str(char *dst, const char *s, size_t l)
+{
+    memcpy(dst, s, l);
+    return l;
+}
+
+h2o_iovec_t h2o_http2_casper_get_cookie(h2o_http2_casper_t *casper)
+{
+    if (casper->cookie_cache.base != NULL)
+        return casper->cookie_cache;
+
+    if (casper->keys.size == 0)
+        return (h2o_iovec_t){NULL};
+
+    /* encode as binary */
+    char tiny_bin_buf[128], *bin_buf = tiny_bin_buf;
+    size_t bin_capacity = sizeof(tiny_bin_buf), bin_size;
+    while (bin_size = bin_capacity,
+           golombset_encode(casper->remainder_bits, casper->keys.entries, casper->keys.size, bin_buf, &bin_size) != 0) {
+        if (bin_buf != tiny_bin_buf)
+            free(bin_buf);
+        bin_capacity *= 2;
+        bin_buf = h2o_mem_alloc(bin_capacity);
+    }
+
+    char *header_bytes = h2o_mem_alloc(sizeof(COOKIE_NAME "=" COOKIE_ATTRIBUTES) - 1 + (bin_size + 3) * 4 / 3);
+    size_t header_len = 0;
+
+    header_len += append_str(header_bytes + header_len, H2O_STRLIT(COOKIE_NAME "="));
+    header_len += h2o_base64_encode(header_bytes + header_len, bin_buf, bin_size, 1);
+    header_len += append_str(header_bytes + header_len, H2O_STRLIT(COOKIE_ATTRIBUTES));
+
+    if (bin_buf != tiny_bin_buf)
+        free(bin_buf);
+
+    casper->cookie_cache = h2o_iovec_init(header_bytes, header_len);
+    return casper->cookie_cache;
+}
diff --git a/debian/vendor-h2o/lib/http2/connection.c b/debian/vendor-h2o/lib/http2/connection.c
new file mode 100644
index 0000000..4910e33
--- /dev/null
+++ b/debian/vendor-h2o/lib/http2/connection.c
@@ -0,0 +1,1452 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku, Fastly, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "h2o.h"
+#include "h2o/http1.h"
+#include "h2o/http2.h"
+#include "h2o/http2_internal.h"
+
+static const h2o_iovec_t CONNECTION_PREFACE = {H2O_STRLIT("PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n")};
+
+const h2o_http2_priority_t h2o_http2_default_priority = {
+    0, /* exclusive */
+    0, /* dependency */
+    16 /* weight */
+};
+
+const h2o_http2_settings_t H2O_HTTP2_SETTINGS_HOST = {
+    4096,     /* header_table_size */
+    0,        /* enable_push (clients are never allowed to initiate server push; RFC 7540 Section 8.2) */
+    100,      /* max_concurrent_streams */
+    16777216, /* initial_window_size */
+    16384     /* max_frame_size */
+};
+
+static const h2o_iovec_t SETTINGS_HOST_BIN = {H2O_STRLIT("\x00\x00\x0c"     /* frame size */
+                                                         "\x04"             /* settings frame */
+                                                         "\x00"             /* no flags */
+                                                         "\x00\x00\x00\x00" /* stream id */
+                                                         "\x00\x03"
+                                                         "\x00\x00\x00\x64" /* max_concurrent_streams = 100 */
+                                                         "\x00\x04"
+                                                         "\x01\x00\x00\x00" /* initial_window_size = 16777216 */
+                                                         )};
+
+static __thread h2o_buffer_prototype_t wbuf_buffer_prototype = {{16}, {H2O_HTTP2_DEFAULT_OUTBUF_SIZE}};
+
+static void initiate_graceful_shutdown(h2o_context_t *ctx);
+static void close_connection_now(h2o_http2_conn_t *conn);
+static int close_connection(h2o_http2_conn_t *conn);
+static ssize_t expect_default(h2o_http2_conn_t *conn, const uint8_t *src, size_t len, const char **err_desc);
+static void do_emit_writereq(h2o_http2_conn_t *conn);
+static void on_read(h2o_socket_t *sock, const char *err);
+static void push_path(h2o_req_t *src_req, const char *abspath, size_t abspath_len);
+static int foreach_request(h2o_context_t *ctx, int (*cb)(h2o_req_t *req, void *cbdata), void *cbdata);
+static void stream_send_error(h2o_http2_conn_t *conn, uint32_t stream_id, int errnum);
+
+const h2o_protocol_callbacks_t H2O_HTTP2_CALLBACKS = {initiate_graceful_shutdown, foreach_request};
+
+static int is_idle_stream_id(h2o_http2_conn_t *conn, uint32_t stream_id)
+{
+    return (h2o_http2_stream_is_push(stream_id) ? conn->push_stream_ids.max_open : conn->pull_stream_ids.max_open) < stream_id;
+}
+
+static void enqueue_goaway(h2o_http2_conn_t *conn, int errnum, h2o_iovec_t additional_data)
+{
+    if (conn->state < H2O_HTTP2_CONN_STATE_IS_CLOSING) {
+        /* http2 spec allows sending GOAWAY more than once (for one reason since errors may arise after sending the first one) */
+        h2o_http2_encode_goaway_frame(&conn->_write.buf, conn->pull_stream_ids.max_open, errnum, additional_data);
+        h2o_http2_conn_request_write(conn);
+        conn->state = H2O_HTTP2_CONN_STATE_HALF_CLOSED;
+    }
+}
+
+static void graceful_shutdown_close_stragglers(h2o_timeout_entry_t *entry)
+{
+    h2o_context_t *ctx = H2O_STRUCT_FROM_MEMBER(h2o_context_t, http2._graceful_shutdown_timeout, entry);
+    h2o_linklist_t *node, *next;
+
+    /* We've sent two GOAWAY frames, close the remaining connections */
+    for (node = ctx->http2._conns.next; node != &ctx->http2._conns; node = next) {
+        h2o_http2_conn_t *conn = H2O_STRUCT_FROM_MEMBER(h2o_http2_conn_t, _conns, node);
+        next = node->next;
+        close_connection(conn);
+    }
+}
+
+static void graceful_shutdown_resend_goaway(h2o_timeout_entry_t *entry)
+{
+    h2o_context_t *ctx = H2O_STRUCT_FROM_MEMBER(h2o_context_t, http2._graceful_shutdown_timeout, entry);
+    h2o_linklist_t *node;
+    int do_close_stragglers = 0;
+
+    for (node = ctx->http2._conns.next; node != &ctx->http2._conns; node = node->next) {
+        h2o_http2_conn_t *conn = H2O_STRUCT_FROM_MEMBER(h2o_http2_conn_t, _conns, node);
+        if (conn->state < H2O_HTTP2_CONN_STATE_HALF_CLOSED) {
+            enqueue_goaway(conn, H2O_HTTP2_ERROR_NONE, (h2o_iovec_t){NULL});
+            do_close_stragglers = 1;
+        }
+    }
+
+    /* After waiting a second, we still had active connections. If configured, wait one
+     * final timeout before closing the connections */
+    if (do_close_stragglers && ctx->globalconf->http2.graceful_shutdown_timeout) {
+        ctx->http2._graceful_shutdown_timeout.cb = graceful_shutdown_close_stragglers;
+        h2o_timeout_link(ctx->loop, &ctx->http2.graceful_shutdown_timeout, &ctx->http2._graceful_shutdown_timeout);
+    }
+}
+
+static void initiate_graceful_shutdown(h2o_context_t *ctx)
+{
+    /* draft-16 6.8
+     * A server that is attempting to gracefully shut down a connection SHOULD send an initial GOAWAY frame with the last stream
+     * identifier set to 231-1 and a NO_ERROR code. This signals to the client that a shutdown is imminent and that no further
+     * requests can be initiated. After waiting at least one round trip time, the server can send another GOAWAY frame with an
+     * updated last stream identifier. This ensures that a connection can be cleanly shut down without losing requests.
+     */
+    h2o_linklist_t *node;
+
+    /* only doit once */
+    if (ctx->http2._graceful_shutdown_timeout.cb != NULL)
+        return;
+    ctx->http2._graceful_shutdown_timeout.cb = graceful_shutdown_resend_goaway;
+
+    for (node = ctx->http2._conns.next; node != &ctx->http2._conns; node = node->next) {
+        h2o_http2_conn_t *conn = H2O_STRUCT_FROM_MEMBER(h2o_http2_conn_t, _conns, node);
+        if (conn->state < H2O_HTTP2_CONN_STATE_HALF_CLOSED) {
+            h2o_http2_encode_goaway_frame(&conn->_write.buf, INT32_MAX, H2O_HTTP2_ERROR_NONE,
+                                          (h2o_iovec_t){H2O_STRLIT("graceful shutdown")});
+            h2o_http2_conn_request_write(conn);
+        }
+    }
+    h2o_timeout_link(ctx->loop, &ctx->one_sec_timeout, &ctx->http2._graceful_shutdown_timeout);
+}
+
+static void on_idle_timeout(h2o_timeout_entry_t *entry)
+{
+    h2o_http2_conn_t *conn = H2O_STRUCT_FROM_MEMBER(h2o_http2_conn_t, _timeout_entry, entry);
+
+    enqueue_goaway(conn, H2O_HTTP2_ERROR_NONE, h2o_iovec_init(H2O_STRLIT("idle timeout")));
+    if (conn->_write.buf_in_flight != NULL) {
+        close_connection_now(conn);
+    } else {
+        enqueue_goaway(conn, H2O_HTTP2_ERROR_NONE, h2o_iovec_init(H2O_STRLIT("idle timeout")));
+        close_connection(conn);
+    }
+}
+
+static void update_idle_timeout(h2o_http2_conn_t *conn)
+{
+    h2o_timeout_unlink(&conn->_timeout_entry);
+
+    if (conn->num_streams.pull.half_closed + conn->num_streams.push.half_closed == 0) {
+        conn->_timeout_entry.cb = on_idle_timeout;
+        h2o_timeout_link(conn->super.ctx->loop, &conn->super.ctx->http2.idle_timeout, &conn->_timeout_entry);
+    }
+}
+
+static int can_run_requests(h2o_http2_conn_t *conn)
+{
+    return conn->num_streams.pull.half_closed + conn->num_streams.push.half_closed <
+           conn->super.ctx->globalconf->http2.max_concurrent_requests_per_connection;
+}
+
+static void run_pending_requests(h2o_http2_conn_t *conn)
+{
+    if (h2o_timeout_is_linked(&conn->dos_mitigation.process_delay))
+        return;
+
+    while (!h2o_linklist_is_empty(&conn->_pending_reqs) && can_run_requests(conn)) {
+        /* fetch and detach a pending stream */
+        h2o_http2_stream_t *stream = H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, _refs.link, conn->_pending_reqs.next);
+        h2o_linklist_unlink(&stream->_refs.link);
+        /* handle it */
+        h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_SEND_HEADERS);
+        if (!h2o_http2_stream_is_push(stream->stream_id) && conn->pull_stream_ids.max_processed < stream->stream_id)
+            conn->pull_stream_ids.max_processed = stream->stream_id;
+        h2o_process_request(&stream->req);
+    }
+}
+
+static void execute_or_enqueue_request(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
+{
+    assert(stream->state < H2O_HTTP2_STREAM_STATE_REQ_PENDING);
+
+    if (stream->_req_body != NULL && stream->_expected_content_length != SIZE_MAX &&
+        stream->_req_body->size != stream->_expected_content_length) {
+        stream_send_error(conn, stream->stream_id, H2O_HTTP2_ERROR_PROTOCOL);
+        h2o_http2_stream_reset(conn, stream);
+        return;
+    }
+
+    h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_REQ_PENDING);
+
+    /* TODO schedule the pending reqs using the scheduler */
+    h2o_linklist_insert(&conn->_pending_reqs, &stream->_refs.link);
+
+    run_pending_requests(conn);
+    update_idle_timeout(conn);
+}
+
+void h2o_http2_conn_register_stream(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
+{
+    khiter_t iter;
+    int r;
+
+    iter = kh_put(h2o_http2_stream_t, conn->streams, stream->stream_id, &r);
+    assert(iter != kh_end(conn->streams));
+    kh_val(conn->streams, iter) = stream;
+}
+
+void h2o_http2_conn_unregister_stream(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
+{
+    khiter_t iter = kh_get(h2o_http2_stream_t, conn->streams, stream->stream_id);
+    assert(iter != kh_end(conn->streams));
+    kh_del(h2o_http2_stream_t, conn->streams, iter);
+
+    assert(h2o_http2_scheduler_is_open(&stream->_refs.scheduler));
+    h2o_http2_scheduler_close(&stream->_refs.scheduler);
+
+    /* Decrement reset_budget if the stream was reset by peer, otherwise increment. By doing so, we penalize connections that
+     * generate resets for >50% of requests. */
+    if (stream->reset_by_peer) {
+        if (conn->dos_mitigation.reset_budget > 0)
+            --conn->dos_mitigation.reset_budget;
+    } else {
+        if (conn->dos_mitigation.reset_budget < conn->super.ctx->globalconf->http2.max_concurrent_requests_per_connection)
+            ++conn->dos_mitigation.reset_budget;
+    }
+
+    switch (stream->state) {
+    case H2O_HTTP2_STREAM_STATE_IDLE:
+    case H2O_HTTP2_STREAM_STATE_RECV_HEADERS:
+    case H2O_HTTP2_STREAM_STATE_RECV_BODY:
+        assert(!h2o_linklist_is_linked(&stream->_refs.link));
+        break;
+    case H2O_HTTP2_STREAM_STATE_REQ_PENDING:
+        assert(h2o_linklist_is_linked(&stream->_refs.link));
+        h2o_linklist_unlink(&stream->_refs.link);
+        break;
+    case H2O_HTTP2_STREAM_STATE_SEND_HEADERS:
+    case H2O_HTTP2_STREAM_STATE_SEND_BODY:
+    case H2O_HTTP2_STREAM_STATE_SEND_BODY_IS_FINAL:
+    case H2O_HTTP2_STREAM_STATE_END_STREAM:
+        if (h2o_linklist_is_linked(&stream->_refs.link))
+            h2o_linklist_unlink(&stream->_refs.link);
+        break;
+    }
+    if (stream->state != H2O_HTTP2_STREAM_STATE_END_STREAM)
+        h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_END_STREAM);
+
+    if (conn->state < H2O_HTTP2_CONN_STATE_IS_CLOSING) {
+        run_pending_requests(conn);
+        update_idle_timeout(conn);
+    }
+}
+
+void close_connection_now(h2o_http2_conn_t *conn)
+{
+    h2o_http2_stream_t *stream;
+
+    assert(!h2o_timeout_is_linked(&conn->_write.timeout_entry));
+
+    kh_foreach_value(conn->streams, stream, { h2o_http2_stream_close(conn, stream); });
+    assert(conn->num_streams.pull.open == 0);
+    assert(conn->num_streams.pull.half_closed == 0);
+    assert(conn->num_streams.pull.send_body == 0);
+    assert(conn->num_streams.push.half_closed == 0);
+    assert(conn->num_streams.push.send_body == 0);
+    assert(conn->num_streams.priority.open == 0);
+    kh_destroy(h2o_http2_stream_t, conn->streams);
+    assert(conn->_http1_req_input == NULL);
+    h2o_hpack_dispose_header_table(&conn->_input_header_table);
+    h2o_hpack_dispose_header_table(&conn->_output_header_table);
+    assert(h2o_linklist_is_empty(&conn->_pending_reqs));
+    h2o_timeout_unlink(&conn->_timeout_entry);
+    if (h2o_timeout_is_linked(&conn->dos_mitigation.process_delay))
+        h2o_timeout_unlink(&conn->dos_mitigation.process_delay);
+    h2o_buffer_dispose(&conn->_write.buf);
+    if (conn->_write.buf_in_flight != NULL)
+        h2o_buffer_dispose(&conn->_write.buf_in_flight);
+    h2o_http2_scheduler_dispose(&conn->scheduler);
+    assert(h2o_linklist_is_empty(&conn->_write.streams_to_proceed));
+    assert(!h2o_timeout_is_linked(&conn->_write.timeout_entry));
+    if (conn->_headers_unparsed != NULL)
+        h2o_buffer_dispose(&conn->_headers_unparsed);
+    if (conn->push_memo != NULL)
+        h2o_cache_destroy(conn->push_memo);
+    if (conn->casper != NULL)
+        h2o_http2_casper_destroy(conn->casper);
+    h2o_linklist_unlink(&conn->_conns);
+
+    if (conn->sock != NULL)
+        h2o_socket_close(conn->sock);
+    free(conn);
+}
+
+int close_connection(h2o_http2_conn_t *conn)
+{
+    conn->state = H2O_HTTP2_CONN_STATE_IS_CLOSING;
+
+    if (conn->_write.buf_in_flight != NULL || h2o_timeout_is_linked(&conn->_write.timeout_entry)) {
+        /* there is a pending write, let on_write_complete actually close the connection */
+    } else {
+        close_connection_now(conn);
+        return -1;
+    }
+    return 0;
+}
+
+static void stream_send_error(h2o_http2_conn_t *conn, uint32_t stream_id, int errnum)
+{
+    assert(stream_id != 0);
+    assert(conn->state < H2O_HTTP2_CONN_STATE_IS_CLOSING);
+
+    conn->super.ctx->http2.events.protocol_level_errors[-errnum]++;
+
+    h2o_http2_encode_rst_stream_frame(&conn->_write.buf, stream_id, -errnum);
+    h2o_http2_conn_request_write(conn);
+}
+
+static void request_gathered_write(h2o_http2_conn_t *conn)
+{
+    assert(conn->state < H2O_HTTP2_CONN_STATE_IS_CLOSING);
+    if (conn->sock->_cb.write == NULL && !h2o_timeout_is_linked(&conn->_write.timeout_entry))
+        h2o_timeout_link(conn->super.ctx->loop, &conn->super.ctx->zero_timeout, &conn->_write.timeout_entry);
+}
+
+static int update_stream_output_window(h2o_http2_stream_t *stream, ssize_t delta)
+{
+    ssize_t cur = h2o_http2_window_get_window(&stream->output_window);
+    if (h2o_http2_window_update(&stream->output_window, delta) != 0)
+        return -1;
+    if (cur <= 0 && h2o_http2_window_get_window(&stream->output_window) > 0 &&
+        (h2o_http2_stream_has_pending_data(stream) || stream->state >= H2O_HTTP2_STREAM_STATE_SEND_BODY_IS_FINAL)) {
+        assert(!h2o_linklist_is_linked(&stream->_refs.link));
+        h2o_http2_scheduler_activate(&stream->_refs.scheduler);
+    }
+    return 0;
+}
+
+static int handle_incoming_request(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream, const uint8_t *src, size_t len,
+                                   const char **err_desc)
+{
+    int ret, header_exists_map;
+
+    assert(stream->state == H2O_HTTP2_STREAM_STATE_RECV_HEADERS);
+
+    header_exists_map = 0;
+    if ((ret = h2o_hpack_parse_headers(&stream->req, &conn->_input_header_table, src, len, &header_exists_map,
+                                       &stream->_expected_content_length, &stream->cache_digests, err_desc)) != 0) {
+        /* all errors except invalid-header-char are connection errors */
+        if (ret != H2O_HTTP2_ERROR_INVALID_HEADER_CHAR)
+            return ret;
+    }
+
+    /* handle stream-level errors */
+#define EXPECTED_MAP                                                                                                               \
+    (H2O_HPACK_PARSE_HEADERS_METHOD_EXISTS | H2O_HPACK_PARSE_HEADERS_PATH_EXISTS | H2O_HPACK_PARSE_HEADERS_SCHEME_EXISTS)
+    if ((header_exists_map & EXPECTED_MAP) != EXPECTED_MAP) {
+        ret = H2O_HTTP2_ERROR_PROTOCOL;
+        goto SendRSTStream;
+    }
+#undef EXPECTED_MAP
+    if (conn->num_streams.pull.open > H2O_HTTP2_SETTINGS_HOST.max_concurrent_streams) {
+        ret = H2O_HTTP2_ERROR_REFUSED_STREAM;
+        goto SendRSTStream;
+    }
+
+    /* handle request to send response */
+    if (ret != 0) {
+        assert(ret == H2O_HTTP2_ERROR_INVALID_HEADER_CHAR);
+        /* fast forward the stream's state so that we can start sending the response */
+        h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_REQ_PENDING);
+        h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_SEND_HEADERS);
+        h2o_send_error_400(&stream->req, "Invalid Headers", *err_desc, 0);
+        return 0;
+    }
+
+    if (stream->_req_body == NULL) {
+        execute_or_enqueue_request(conn, stream);
+    } else {
+        h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_RECV_BODY);
+    }
+    return 0;
+
+SendRSTStream:
+    stream_send_error(conn, stream->stream_id, ret);
+    h2o_http2_stream_reset(conn, stream);
+    return 0;
+}
+
+static int handle_trailing_headers(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream, const uint8_t *src, size_t len,
+                                   const char **err_desc)
+{
+    size_t dummy_content_length;
+    int ret;
+
+    assert(stream->state == H2O_HTTP2_STREAM_STATE_RECV_BODY);
+
+    if ((ret = h2o_hpack_parse_headers(&stream->req, &conn->_input_header_table, src, len, NULL, &dummy_content_length, NULL,
+                                       err_desc)) != 0)
+        return ret;
+
+    execute_or_enqueue_request(conn, stream);
+    return 0;
+}
+
+static ssize_t expect_continuation_of_headers(h2o_http2_conn_t *conn, const uint8_t *src, size_t len, const char **err_desc)
+{
+    h2o_http2_frame_t frame;
+    ssize_t ret;
+    h2o_http2_stream_t *stream;
+    int hret;
+
+    if ((ret = h2o_http2_decode_frame(&frame, src, len, &H2O_HTTP2_SETTINGS_HOST, err_desc)) < 0)
+        return ret;
+    if (frame.type != H2O_HTTP2_FRAME_TYPE_CONTINUATION) {
+        *err_desc = "expected CONTINUATION frame";
+        return H2O_HTTP2_ERROR_PROTOCOL;
+    }
+
+    if (conn->state >= H2O_HTTP2_CONN_STATE_HALF_CLOSED)
+        return 0;
+
+    if ((stream = h2o_http2_conn_get_stream(conn, frame.stream_id)) == NULL ||
+        !(stream->state == H2O_HTTP2_STREAM_STATE_RECV_HEADERS || stream->state == H2O_HTTP2_STREAM_STATE_RECV_BODY)) {
+        *err_desc = "unexpected stream id in CONTINUATION frame";
+        return H2O_HTTP2_ERROR_PROTOCOL;
+    }
+
+    if (conn->_headers_unparsed->size + frame.length <= H2O_MAX_REQLEN) {
+        h2o_buffer_reserve(&conn->_headers_unparsed, frame.length);
+        memcpy(conn->_headers_unparsed->bytes + conn->_headers_unparsed->size, frame.payload, frame.length);
+        conn->_headers_unparsed->size += frame.length;
+
+        if ((frame.flags & H2O_HTTP2_FRAME_FLAG_END_HEADERS) != 0) {
+            conn->_read_expect = expect_default;
+            if (stream->state == H2O_HTTP2_STREAM_STATE_RECV_HEADERS) {
+                hret = handle_incoming_request(conn, stream, (const uint8_t *)conn->_headers_unparsed->bytes,
+                                               conn->_headers_unparsed->size, err_desc);
+            } else {
+                hret = handle_trailing_headers(conn, stream, (const uint8_t *)conn->_headers_unparsed->bytes,
+                                               conn->_headers_unparsed->size, err_desc);
+            }
+            if (hret != 0)
+                ret = hret;
+            h2o_buffer_dispose(&conn->_headers_unparsed);
+            conn->_headers_unparsed = NULL;
+        }
+    } else {
+        /* request is too large (TODO log) */
+        stream_send_error(conn, stream->stream_id, H2O_HTTP2_ERROR_REFUSED_STREAM);
+        h2o_http2_stream_reset(conn, stream);
+    }
+
+    return ret;
+}
+
+static void update_input_window(h2o_http2_conn_t *conn, uint32_t stream_id, h2o_http2_window_t *window, size_t consumed)
+{
+    h2o_http2_window_consume_window(window, consumed);
+    if (h2o_http2_window_get_window(window) * 2 < H2O_HTTP2_SETTINGS_HOST.initial_window_size) {
+        int32_t delta = (int32_t)(H2O_HTTP2_SETTINGS_HOST.initial_window_size - h2o_http2_window_get_window(window));
+        h2o_http2_encode_window_update_frame(&conn->_write.buf, stream_id, delta);
+        h2o_http2_conn_request_write(conn);
+        h2o_http2_window_update(window, delta);
+    }
+}
+
+static void set_priority(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream, const h2o_http2_priority_t *priority,
+                         int scheduler_is_open)
+{
+    h2o_http2_scheduler_node_t *parent_sched;
+
+    /* determine the parent */
+    if (priority->dependency != 0) {
+        h2o_http2_stream_t *parent_stream = h2o_http2_conn_get_stream(conn, priority->dependency);
+        if (parent_stream != NULL) {
+            parent_sched = &parent_stream->_refs.scheduler.node;
+        } else {
+            /* A dependency on a stream that is not currently in the tree - such as a stream in the "idle" state - results in that
+             * stream being given a default priority. (RFC 7540 5.3.1)
+             * It is possible for a stream to become closed while prioritization information that creates a dependency on that
+             * stream is in transit. If a stream identified in a dependency has no associated priority information, then the
+             * dependent stream is instead assigned a default priority. (RFC 7540 5.3.4)
+             */
+            parent_sched = &conn->scheduler;
+            priority = &h2o_http2_default_priority;
+        }
+    } else {
+        parent_sched = &conn->scheduler;
+    }
+
+    /* setup the scheduler */
+    if (!scheduler_is_open) {
+        h2o_http2_scheduler_open(&stream->_refs.scheduler, parent_sched, priority->weight, priority->exclusive);
+    } else {
+        h2o_http2_scheduler_rebind(&stream->_refs.scheduler, parent_sched, priority->weight, priority->exclusive);
+    }
+}
+
+static int handle_data_frame(h2o_http2_conn_t *conn, h2o_http2_frame_t *frame, const char **err_desc)
+{
+    h2o_http2_data_payload_t payload;
+    h2o_http2_stream_t *stream;
+    int ret;
+
+    if ((ret = h2o_http2_decode_data_payload(&payload, frame, err_desc)) != 0)
+        return ret;
+
+    if (conn->state >= H2O_HTTP2_CONN_STATE_HALF_CLOSED)
+        return 0;
+
+    stream = h2o_http2_conn_get_stream(conn, frame->stream_id);
+
+    /* save the input in the request body buffer, or send error (and close the stream) */
+    if (stream == NULL) {
+        if (frame->stream_id <= conn->pull_stream_ids.max_open) {
+            stream_send_error(conn, frame->stream_id, H2O_HTTP2_ERROR_STREAM_CLOSED);
+        } else {
+            *err_desc = "invalid DATA frame";
+            return H2O_HTTP2_ERROR_PROTOCOL;
+        }
+    } else if (stream->state != H2O_HTTP2_STREAM_STATE_RECV_BODY) {
+        stream_send_error(conn, frame->stream_id, H2O_HTTP2_ERROR_STREAM_CLOSED);
+        h2o_http2_stream_reset(conn, stream);
+        stream = NULL;
+    } else if (stream->_req_body->size + payload.length > conn->super.ctx->globalconf->max_request_entity_size) {
+        stream_send_error(conn, frame->stream_id, H2O_HTTP2_ERROR_REFUSED_STREAM);
+        h2o_http2_stream_reset(conn, stream);
+        stream = NULL;
+    } else {
+        h2o_iovec_t buf = h2o_buffer_reserve(&stream->_req_body, payload.length);
+        if (buf.base != NULL) {
+            memcpy(buf.base, payload.data, payload.length);
+            stream->_req_body->size += payload.length;
+            /* handle request if request body is complete */
+            if ((frame->flags & H2O_HTTP2_FRAME_FLAG_END_STREAM) != 0) {
+                stream->req.entity = h2o_iovec_init(stream->_req_body->bytes, stream->_req_body->size);
+                execute_or_enqueue_request(conn, stream);
+                stream = NULL; /* no need to send window update for this stream */
+            }
+        } else {
+            /* memory allocation failed */
+            stream_send_error(conn, frame->stream_id, H2O_HTTP2_ERROR_STREAM_CLOSED);
+            h2o_http2_stream_reset(conn, stream);
+            stream = NULL;
+        }
+    }
+
+    /* consume buffer (and set window_update) */
+    update_input_window(conn, 0, &conn->_input_window, frame->length);
+    if (stream != NULL)
+        update_input_window(conn, stream->stream_id, &stream->input_window, frame->length);
+
+    return 0;
+}
+
+static int handle_headers_frame(h2o_http2_conn_t *conn, h2o_http2_frame_t *frame, const char **err_desc)
+{
+    h2o_http2_headers_payload_t payload;
+    h2o_http2_stream_t *stream;
+    int ret;
+
+    /* decode */
+    if ((ret = h2o_http2_decode_headers_payload(&payload, frame, err_desc)) != 0)
+        return ret;
+    if ((frame->stream_id & 1) == 0) {
+        *err_desc = "invalid stream id in HEADERS frame";
+        return H2O_HTTP2_ERROR_PROTOCOL;
+    }
+    if (!(conn->pull_stream_ids.max_open < frame->stream_id)) {
+        if ((stream = h2o_http2_conn_get_stream(conn, frame->stream_id)) != NULL &&
+            stream->state == H2O_HTTP2_STREAM_STATE_RECV_BODY) {
+            /* is a trailer */
+            if ((frame->flags & H2O_HTTP2_FRAME_FLAG_END_STREAM) == 0) {
+                *err_desc = "trailing HEADERS frame MUST have END_STREAM flag set";
+                return H2O_HTTP2_ERROR_PROTOCOL;
+            }
+            stream->req.entity = h2o_iovec_init(stream->_req_body->bytes, stream->_req_body->size);
+            if ((frame->flags & H2O_HTTP2_FRAME_FLAG_END_HEADERS) == 0)
+                goto PREPARE_FOR_CONTINUATION;
+            return handle_trailing_headers(conn, stream, payload.headers, payload.headers_len, err_desc);
+        } else if (!stream || stream->state != H2O_HTTP2_STREAM_STATE_IDLE) {
+            /* it's legit that stream exists and is IDLE if a PRIORITY frame was received earlier */
+            *err_desc = "invalid stream id in HEADERS frame";
+            return H2O_HTTP2_ERROR_STREAM_CLOSED;
+        }
+    }
+    if (frame->stream_id == payload.priority.dependency) {
+        *err_desc = "stream cannot depend on itself";
+        return H2O_HTTP2_ERROR_PROTOCOL;
+    }
+
+    if (conn->state >= H2O_HTTP2_CONN_STATE_HALF_CLOSED)
+        return 0;
+
+    /* open or determine the stream and prepare */
+    if ((stream = h2o_http2_conn_get_stream(conn, frame->stream_id)) != NULL) {
+        if ((frame->flags & H2O_HTTP2_FRAME_FLAG_PRIORITY) != 0) {
+            set_priority(conn, stream, &payload.priority, 1);
+            stream->received_priority = payload.priority;
+        }
+    } else {
+        stream = h2o_http2_stream_open(conn, frame->stream_id, NULL, &payload.priority);
+        set_priority(conn, stream, &payload.priority, 0);
+    }
+    h2o_http2_stream_prepare_for_request(conn, stream);
+
+    /* setup container for request body if it is expected to arrive */
+    if ((frame->flags & H2O_HTTP2_FRAME_FLAG_END_STREAM) == 0)
+        h2o_buffer_init(&stream->_req_body, &h2o_socket_buffer_prototype);
+
+    if ((frame->flags & H2O_HTTP2_FRAME_FLAG_END_HEADERS) != 0) {
+        /* request is complete, handle it */
+        return handle_incoming_request(conn, stream, payload.headers, payload.headers_len, err_desc);
+    }
+
+PREPARE_FOR_CONTINUATION:
+    /* request is not complete, store in buffer */
+    conn->_read_expect = expect_continuation_of_headers;
+    h2o_buffer_init(&conn->_headers_unparsed, &h2o_socket_buffer_prototype);
+    h2o_buffer_reserve(&conn->_headers_unparsed, payload.headers_len);
+    memcpy(conn->_headers_unparsed->bytes, payload.headers, payload.headers_len);
+    conn->_headers_unparsed->size = payload.headers_len;
+    return 0;
+}
+
+static int handle_priority_frame(h2o_http2_conn_t *conn, h2o_http2_frame_t *frame, const char **err_desc)
+{
+    h2o_http2_priority_t payload;
+    h2o_http2_stream_t *stream;
+    int ret;
+
+    if ((ret = h2o_http2_decode_priority_payload(&payload, frame, err_desc)) != 0)
+        return ret;
+    if (frame->stream_id == payload.dependency) {
+        *err_desc = "stream cannot depend on itself";
+        return H2O_HTTP2_ERROR_PROTOCOL;
+    }
+
+    if ((stream = h2o_http2_conn_get_stream(conn, frame->stream_id)) != NULL) {
+        stream->received_priority = payload;
+        /* ignore priority changes to pushed streams with weight=257, since that is where we are trying to be smarter than the web
+         * browsers
+         */
+        if (h2o_http2_scheduler_get_weight(&stream->_refs.scheduler) != 257)
+            set_priority(conn, stream, &payload, 1);
+    } else {
+        if (h2o_http2_stream_is_push(frame->stream_id)) {
+            /* Ignore PRIORITY frames for closed or idle pushed streams */
+            return 0;
+        } else {
+            /* Ignore PRIORITY frames for closed pull streams */
+            if (frame->stream_id <= conn->pull_stream_ids.max_open)
+                return 0;
+        }
+        if (conn->num_streams.priority.open >= conn->super.ctx->globalconf->http2.max_streams_for_priority) {
+            *err_desc = "too many streams in idle/closed state";
+            /* RFC 7540 10.5: An endpoint MAY treat activity that is suspicious as a connection error (Section 5.4.1) of type
+             * ENHANCE_YOUR_CALM.
+             */
+            return H2O_HTTP2_ERROR_ENHANCE_YOUR_CALM;
+        }
+        stream = h2o_http2_stream_open(conn, frame->stream_id, NULL, &payload);
+        set_priority(conn, stream, &payload, 0);
+    }
+
+    return 0;
+}
+
+static void resume_send(h2o_http2_conn_t *conn)
+{
+    if (h2o_http2_conn_get_buffer_window(conn) <= 0)
+        return;
+#if 0 /* TODO reenable this check for performance? */
+    if (conn->scheduler.list.size == 0)
+        return;
+#endif
+    request_gathered_write(conn);
+}
+
+static int handle_settings_frame(h2o_http2_conn_t *conn, h2o_http2_frame_t *frame, const char **err_desc)
+{
+    if (frame->stream_id != 0) {
+        *err_desc = "invalid stream id in SETTINGS frame";
+        return H2O_HTTP2_ERROR_PROTOCOL;
+    }
+
+    if ((frame->flags & H2O_HTTP2_FRAME_FLAG_ACK) != 0) {
+        if (frame->length != 0) {
+            *err_desc = "invalid SETTINGS frame (+ACK)";
+            return H2O_HTTP2_ERROR_FRAME_SIZE;
+        }
+    } else {
+        uint32_t prev_initial_window_size = conn->peer_settings.initial_window_size;
+        /* FIXME handle SETTINGS_HEADER_TABLE_SIZE */
+        int ret = h2o_http2_update_peer_settings(&conn->peer_settings, frame->payload, frame->length, err_desc);
+        if (ret != 0)
+            return ret;
+        { /* schedule ack */
+            h2o_iovec_t header_buf = h2o_buffer_reserve(&conn->_write.buf, H2O_HTTP2_FRAME_HEADER_SIZE);
+            h2o_http2_encode_frame_header((void *)header_buf.base, 0, H2O_HTTP2_FRAME_TYPE_SETTINGS, H2O_HTTP2_FRAME_FLAG_ACK, 0);
+            conn->_write.buf->size += H2O_HTTP2_FRAME_HEADER_SIZE;
+            h2o_http2_conn_request_write(conn);
+        }
+        /* apply the change to window size (to all the streams but not the connection, see 6.9.2 of draft-15) */
+        if (prev_initial_window_size != conn->peer_settings.initial_window_size) {
+            ssize_t delta = (int32_t)conn->peer_settings.initial_window_size - (int32_t)prev_initial_window_size;
+            h2o_http2_stream_t *stream;
+            kh_foreach_value(conn->streams, stream, { update_stream_output_window(stream, delta); });
+            resume_send(conn);
+        }
+    }
+
+    return 0;
+}
+
+static int handle_window_update_frame(h2o_http2_conn_t *conn, h2o_http2_frame_t *frame, const char **err_desc)
+{
+    h2o_http2_window_update_payload_t payload;
+    int ret, err_is_stream_level;
+
+    if ((ret = h2o_http2_decode_window_update_payload(&payload, frame, err_desc, &err_is_stream_level)) != 0) {
+        if (err_is_stream_level) {
+            h2o_http2_stream_t *stream = h2o_http2_conn_get_stream(conn, frame->stream_id);
+            if (stream != NULL)
+                h2o_http2_stream_reset(conn, stream);
+            stream_send_error(conn, frame->stream_id, ret);
+            return 0;
+        } else {
+            return ret;
+        }
+    }
+
+    if (frame->stream_id == 0) {
+        if (h2o_http2_window_update(&conn->_write.window, payload.window_size_increment) != 0) {
+            *err_desc = "flow control window overflow";
+            return H2O_HTTP2_ERROR_FLOW_CONTROL;
+        }
+    } else if (!is_idle_stream_id(conn, frame->stream_id)) {
+        h2o_http2_stream_t *stream = h2o_http2_conn_get_stream(conn, frame->stream_id);
+        if (stream != NULL) {
+            if (update_stream_output_window(stream, payload.window_size_increment) != 0) {
+                h2o_http2_stream_reset(conn, stream);
+                stream_send_error(conn, frame->stream_id, H2O_HTTP2_ERROR_FLOW_CONTROL);
+                return 0;
+            }
+        }
+    } else {
+        *err_desc = "invalid stream id in WINDOW_UPDATE frame";
+        return H2O_HTTP2_ERROR_PROTOCOL;
+    }
+
+    resume_send(conn);
+
+    return 0;
+}
+
+static int handle_goaway_frame(h2o_http2_conn_t *conn, h2o_http2_frame_t *frame, const char **err_desc)
+{
+    h2o_http2_goaway_payload_t payload;
+    int ret;
+
+    if ((ret = h2o_http2_decode_goaway_payload(&payload, frame, err_desc)) != 0)
+        return ret;
+
+    /* stop opening new push streams hereafter */
+    conn->push_stream_ids.max_open = 0x7ffffffe;
+
+    return 0;
+}
+
+static int handle_ping_frame(h2o_http2_conn_t *conn, h2o_http2_frame_t *frame, const char **err_desc)
+{
+    h2o_http2_ping_payload_t payload;
+    int ret;
+
+    if ((ret = h2o_http2_decode_ping_payload(&payload, frame, err_desc)) != 0)
+        return ret;
+
+    if ((frame->flags & H2O_HTTP2_FRAME_FLAG_ACK) == 0) {
+        h2o_http2_encode_ping_frame(&conn->_write.buf, 1, payload.data);
+        h2o_http2_conn_request_write(conn);
+    }
+
+    return 0;
+}
+
+static int handle_rst_stream_frame(h2o_http2_conn_t *conn, h2o_http2_frame_t *frame, const char **err_desc)
+{
+    h2o_http2_rst_stream_payload_t payload;
+    h2o_http2_stream_t *stream;
+    int ret;
+
+    if ((ret = h2o_http2_decode_rst_stream_payload(&payload, frame, err_desc)) != 0)
+        return ret;
+    if (is_idle_stream_id(conn, frame->stream_id)) {
+        *err_desc = "unexpected stream id in RST_STREAM frame";
+        return H2O_HTTP2_ERROR_PROTOCOL;
+    }
+
+    if ((stream = h2o_http2_conn_get_stream(conn, frame->stream_id)) == NULL)
+        return 0;
+
+        /* reset the stream */
+    stream->reset_by_peer = 1;
+        h2o_http2_stream_reset(conn, stream);
+
+    /* setup process delay if we've just ran out of reset budget */
+    if (conn->dos_mitigation.reset_budget == 0 && conn->super.ctx->globalconf->http2.dos_delay != 0 &&
+        !h2o_timeout_is_linked(&conn->dos_mitigation.process_delay))
+        h2o_timeout_link(conn->super.ctx->loop, &conn->super.ctx->http2.dos_delay_timeout,
+                       &conn->dos_mitigation.process_delay);
+
+    /* TODO log */
+
+    return 0;
+}
+
+static int handle_push_promise_frame(h2o_http2_conn_t *conn, h2o_http2_frame_t *frame, const char **err_desc)
+{
+    *err_desc = "received PUSH_PROMISE frame";
+    return H2O_HTTP2_ERROR_PROTOCOL;
+}
+
+static int handle_invalid_continuation_frame(h2o_http2_conn_t *conn, h2o_http2_frame_t *frame, const char **err_desc)
+{
+    *err_desc = "received invalid CONTINUATION frame";
+    return H2O_HTTP2_ERROR_PROTOCOL;
+}
+
+ssize_t expect_default(h2o_http2_conn_t *conn, const uint8_t *src, size_t len, const char **err_desc)
+{
+    h2o_http2_frame_t frame;
+    ssize_t ret;
+    static int (*FRAME_HANDLERS[])(h2o_http2_conn_t * conn, h2o_http2_frame_t * frame, const char **err_desc) = {
+        handle_data_frame,                /* DATA */
+        handle_headers_frame,             /* HEADERS */
+        handle_priority_frame,            /* PRIORITY */
+        handle_rst_stream_frame,          /* RST_STREAM */
+        handle_settings_frame,            /* SETTINGS */
+        handle_push_promise_frame,        /* PUSH_PROMISE */
+        handle_ping_frame,                /* PING */
+        handle_goaway_frame,              /* GOAWAY */
+        handle_window_update_frame,       /* WINDOW_UPDATE */
+        handle_invalid_continuation_frame /* CONTINUATION */
+    };
+
+    if ((ret = h2o_http2_decode_frame(&frame, src, len, &H2O_HTTP2_SETTINGS_HOST, err_desc)) < 0)
+        return ret;
+
+    if (frame.type < sizeof(FRAME_HANDLERS) / sizeof(FRAME_HANDLERS[0])) {
+        int hret = FRAME_HANDLERS[frame.type](conn, &frame, err_desc);
+        if (hret != 0)
+            ret = hret;
+    } else {
+        fprintf(stderr, "skipping frame (type:%d)\n", frame.type);
+    }
+
+    return ret;
+}
+
+static ssize_t expect_preface(h2o_http2_conn_t *conn, const uint8_t *src, size_t len, const char **err_desc)
+{
+    if (len < CONNECTION_PREFACE.len) {
+        return H2O_HTTP2_ERROR_INCOMPLETE;
+    }
+    if (memcmp(src, CONNECTION_PREFACE.base, CONNECTION_PREFACE.len) != 0) {
+        return H2O_HTTP2_ERROR_PROTOCOL_CLOSE_IMMEDIATELY;
+    }
+
+    { /* send SETTINGS */
+        h2o_iovec_t vec = h2o_buffer_reserve(&conn->_write.buf, SETTINGS_HOST_BIN.len);
+        memcpy(vec.base, SETTINGS_HOST_BIN.base, SETTINGS_HOST_BIN.len);
+        conn->_write.buf->size += SETTINGS_HOST_BIN.len;
+        h2o_http2_conn_request_write(conn);
+    }
+
+    conn->_read_expect = expect_default;
+    return CONNECTION_PREFACE.len;
+}
+
+static int parse_input(h2o_http2_conn_t *conn)
+{
+    /* handle the input */
+    while (conn->state < H2O_HTTP2_CONN_STATE_IS_CLOSING && conn->sock->input->size != 0) {
+        /* process a frame */
+        const char *err_desc = NULL;
+        ssize_t ret = conn->_read_expect(conn, (uint8_t *)conn->sock->input->bytes, conn->sock->input->size, &err_desc);
+        if (ret == H2O_HTTP2_ERROR_INCOMPLETE) {
+            break;
+        } else if (ret < 0) {
+            if (ret != H2O_HTTP2_ERROR_PROTOCOL_CLOSE_IMMEDIATELY) {
+                enqueue_goaway(conn, (int)ret,
+                               err_desc != NULL ? (h2o_iovec_t){(char *)err_desc, strlen(err_desc)} : (h2o_iovec_t){NULL});
+            }
+            return close_connection(conn);
+        }
+        /* advance to the next frame */
+        h2o_buffer_consume(&conn->sock->input, ret);
+    }
+    return 0;
+}
+
+static void on_read(h2o_socket_t *sock, const char *err)
+{
+    h2o_http2_conn_t *conn = sock->data;
+
+    if (err != NULL) {
+        conn->super.ctx->http2.events.read_closed++;
+        h2o_socket_read_stop(conn->sock);
+        close_connection(conn);
+        return;
+    }
+
+    update_idle_timeout(conn);
+    if (parse_input(conn) != 0)
+        return;
+
+    /* write immediately, if there is no write in flight and if pending write exists */
+    if (h2o_timeout_is_linked(&conn->_write.timeout_entry)) {
+        h2o_timeout_unlink(&conn->_write.timeout_entry);
+        do_emit_writereq(conn);
+    }
+}
+
+static void on_upgrade_complete(void *_conn, h2o_socket_t *sock, size_t reqsize)
+{
+    h2o_http2_conn_t *conn = _conn;
+
+    if (sock == NULL) {
+        close_connection(conn);
+        return;
+    }
+
+    conn->sock = sock;
+    sock->data = conn;
+    conn->_http1_req_input = sock->input;
+    h2o_buffer_init(&sock->input, &h2o_socket_buffer_prototype);
+
+    /* setup inbound */
+    h2o_socket_read_start(conn->sock, on_read);
+
+    /* handle the request */
+    execute_or_enqueue_request(conn, h2o_http2_conn_get_stream(conn, 1));
+
+    if (conn->_http1_req_input->size > reqsize) {
+        size_t remaining_bytes = conn->_http1_req_input->size - reqsize;
+        h2o_buffer_reserve(&sock->input, remaining_bytes);
+        memcpy(sock->input->bytes, conn->_http1_req_input->bytes + reqsize, remaining_bytes);
+        sock->input->size += remaining_bytes;
+        on_read(conn->sock, NULL);
+    }
+}
+
+static size_t bytes_in_buf(h2o_http2_conn_t *conn)
+{
+    size_t size = conn->_write.buf->size;
+    if (conn->_write.buf_in_flight != 0)
+        size += conn->_write.buf_in_flight->size;
+    return size;
+}
+
+void h2o_http2_conn_request_write(h2o_http2_conn_t *conn)
+{
+    if (conn->state == H2O_HTTP2_CONN_STATE_IS_CLOSING)
+        return;
+    if (h2o_socket_is_reading(conn->sock) && bytes_in_buf(conn) >= H2O_HTTP2_DEFAULT_OUTBUF_SOFT_MAX_SIZE)
+        h2o_socket_read_stop(conn->sock);
+    request_gathered_write(conn);
+}
+
+void h2o_http2_conn_register_for_proceed_callback(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
+{
+    h2o_http2_conn_request_write(conn);
+
+    if (h2o_http2_stream_has_pending_data(stream) || stream->state >= H2O_HTTP2_STREAM_STATE_SEND_BODY_IS_FINAL) {
+        if (h2o_http2_window_get_window(&stream->output_window) > 0) {
+            assert(!h2o_linklist_is_linked(&stream->_refs.link));
+            h2o_http2_scheduler_activate(&stream->_refs.scheduler);
+        }
+    } else {
+        h2o_linklist_insert(&conn->_write.streams_to_proceed, &stream->_refs.link);
+    }
+}
+
+static void on_notify_write(h2o_socket_t *sock, const char *err)
+{
+    h2o_http2_conn_t *conn = sock->data;
+
+    if (err != NULL) {
+        close_connection_now(conn);
+        return;
+    }
+    do_emit_writereq(conn);
+}
+
+static void on_write_complete(h2o_socket_t *sock, const char *err)
+{
+    h2o_http2_conn_t *conn = sock->data;
+
+    assert(conn->_write.buf_in_flight != NULL);
+
+    /* close by error if necessary */
+    if (err != NULL) {
+        conn->super.ctx->http2.events.write_closed++;
+        close_connection_now(conn);
+        return;
+    }
+
+    /* reset the other memory pool */
+    h2o_buffer_dispose(&conn->_write.buf_in_flight);
+    assert(conn->_write.buf_in_flight == NULL);
+
+    /* call the proceed callback of the streams that have been flushed (while unlinking them from the list) */
+    if (conn->state < H2O_HTTP2_CONN_STATE_IS_CLOSING) {
+        while (!h2o_linklist_is_empty(&conn->_write.streams_to_proceed)) {
+            h2o_http2_stream_t *stream =
+                H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, _refs.link, conn->_write.streams_to_proceed.next);
+            assert(!h2o_http2_stream_has_pending_data(stream));
+            h2o_linklist_unlink(&stream->_refs.link);
+            h2o_http2_stream_proceed(conn, stream);
+        }
+    }
+
+    /* cancel the write callback if scheduled (as the generator may have scheduled a write just before this function gets called) */
+    if (h2o_timeout_is_linked(&conn->_write.timeout_entry))
+        h2o_timeout_unlink(&conn->_write.timeout_entry);
+
+    if (conn->state < H2O_HTTP2_CONN_STATE_IS_CLOSING) {
+        if (!h2o_socket_is_reading(conn->sock) && bytes_in_buf(conn) < H2O_HTTP2_DEFAULT_OUTBUF_SOFT_MAX_SIZE)
+            h2o_socket_read_start(conn->sock, on_read);
+    }
+
+#if !H2O_USE_LIBUV
+    if (conn->state == H2O_HTTP2_CONN_STATE_OPEN) {
+        if (conn->_write.buf->size != 0 || h2o_http2_scheduler_is_active(&conn->scheduler))
+            h2o_socket_notify_write(sock, on_notify_write);
+        return;
+    }
+#endif
+
+    /* write more, if possible */
+    do_emit_writereq(conn);
+}
+
+static int emit_writereq_of_openref(h2o_http2_scheduler_openref_t *ref, int *still_is_active, void *cb_arg)
+{
+    h2o_http2_conn_t *conn = cb_arg;
+    h2o_http2_stream_t *stream = H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, _refs.scheduler, ref);
+
+    assert(h2o_http2_stream_has_pending_data(stream) || stream->state >= H2O_HTTP2_STREAM_STATE_SEND_BODY_IS_FINAL);
+
+    *still_is_active = 0;
+
+    h2o_http2_stream_send_pending_data(conn, stream);
+    if (h2o_http2_stream_has_pending_data(stream) || stream->state == H2O_HTTP2_STREAM_STATE_SEND_BODY_IS_FINAL) {
+        if (h2o_http2_window_get_window(&stream->output_window) <= 0) {
+            /* is blocked */
+        } else {
+            *still_is_active = 1;
+        }
+    } else {
+        h2o_linklist_insert(&conn->_write.streams_to_proceed, &stream->_refs.link);
+    }
+
+    return h2o_http2_conn_get_buffer_window(conn) > 0 ? 0 : -1;
+}
+
+void do_emit_writereq(h2o_http2_conn_t *conn)
+{
+    assert(conn->_write.buf_in_flight == NULL);
+
+    /* push DATA frames */
+    if (conn->state < H2O_HTTP2_CONN_STATE_IS_CLOSING && h2o_http2_conn_get_buffer_window(conn) > 0)
+        h2o_http2_scheduler_run(&conn->scheduler, emit_writereq_of_openref, conn);
+
+    if (conn->_write.buf->size != 0) {
+        /* write and wait for completion */
+        h2o_iovec_t buf = {conn->_write.buf->bytes, conn->_write.buf->size};
+        h2o_socket_write(conn->sock, &buf, 1, on_write_complete);
+        conn->_write.buf_in_flight = conn->_write.buf;
+        h2o_buffer_init(&conn->_write.buf, &wbuf_buffer_prototype);
+    }
+
+    /* close the connection if necessary */
+    switch (conn->state) {
+    case H2O_HTTP2_CONN_STATE_OPEN:
+        break;
+    case H2O_HTTP2_CONN_STATE_HALF_CLOSED:
+        if (conn->num_streams.pull.half_closed + conn->num_streams.push.half_closed != 0)
+            break;
+        conn->state = H2O_HTTP2_CONN_STATE_IS_CLOSING;
+    /* fall-thru */
+    case H2O_HTTP2_CONN_STATE_IS_CLOSING:
+        close_connection_now(conn);
+        break;
+    }
+}
+
+static void emit_writereq(h2o_timeout_entry_t *entry)
+{
+    h2o_http2_conn_t *conn = H2O_STRUCT_FROM_MEMBER(h2o_http2_conn_t, _write.timeout_entry, entry);
+
+    do_emit_writereq(conn);
+}
+
+static socklen_t get_sockname(h2o_conn_t *_conn, struct sockaddr *sa)
+{
+    h2o_http2_conn_t *conn = (void *)_conn;
+    return h2o_socket_getsockname(conn->sock, sa);
+}
+
+static socklen_t get_peername(h2o_conn_t *_conn, struct sockaddr *sa)
+{
+    h2o_http2_conn_t *conn = (void *)_conn;
+    return h2o_socket_getpeername(conn->sock, sa);
+}
+
+static h2o_socket_t *get_socket(h2o_conn_t *_conn)
+{
+    h2o_http2_conn_t *conn = (void *)_conn;
+    return conn->sock;
+}
+
+#define DEFINE_TLS_LOGGER(name)                                                                                                    \
+    static h2o_iovec_t log_##name(h2o_req_t *req)                                                                                  \
+    {                                                                                                                              \
+        h2o_http2_conn_t *conn = (void *)req->conn;                                                                                \
+        return h2o_socket_log_ssl_##name(conn->sock, &req->pool);                                                                  \
+    }
+
+DEFINE_TLS_LOGGER(protocol_version)
+DEFINE_TLS_LOGGER(session_reused)
+DEFINE_TLS_LOGGER(cipher)
+DEFINE_TLS_LOGGER(cipher_bits)
+DEFINE_TLS_LOGGER(session_id)
+#undef DEFINE_TLS_LOGGER
+
+static h2o_iovec_t log_stream_id(h2o_req_t *req)
+{
+    h2o_http2_stream_t *stream = H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, req, req);
+    char *s = h2o_mem_alloc_pool(&stream->req.pool, sizeof(H2O_UINT32_LONGEST_STR));
+    size_t len = (size_t)sprintf(s, "%" PRIu32, stream->stream_id);
+    return h2o_iovec_init(s, len);
+}
+
+static h2o_iovec_t log_priority_received(h2o_req_t *req)
+{
+    h2o_http2_stream_t *stream = H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, req, req);
+    char *s = h2o_mem_alloc_pool(&stream->req.pool, sizeof("1:" H2O_UINT32_LONGEST_STR ":" H2O_UINT16_LONGEST_STR));
+    size_t len = (size_t)sprintf(s, "%c:%" PRIu32 ":%" PRIu16, stream->received_priority.exclusive ? '1' : '0',
+                                 stream->received_priority.dependency, stream->received_priority.weight);
+    return h2o_iovec_init(s, len);
+}
+
+static h2o_iovec_t log_priority_received_exclusive(h2o_req_t *req)
+{
+    h2o_http2_stream_t *stream = H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, req, req);
+    return h2o_iovec_init(stream->received_priority.exclusive ? "1" : "0", 1);
+}
+
+static h2o_iovec_t log_priority_received_parent(h2o_req_t *req)
+{
+    h2o_http2_stream_t *stream = H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, req, req);
+    char *s = h2o_mem_alloc_pool(&stream->req.pool, sizeof(H2O_UINT32_LONGEST_STR));
+    size_t len = sprintf(s, "%" PRIu32, stream->received_priority.dependency);
+    return h2o_iovec_init(s, len);
+}
+
+static h2o_iovec_t log_priority_received_weight(h2o_req_t *req)
+{
+    h2o_http2_stream_t *stream = H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, req, req);
+    char *s = h2o_mem_alloc_pool(&stream->req.pool, sizeof(H2O_UINT16_LONGEST_STR));
+    size_t len = sprintf(s, "%" PRIu16, stream->received_priority.weight);
+    return h2o_iovec_init(s, len);
+}
+
+static uint32_t get_parent_stream_id(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
+{
+    h2o_http2_scheduler_node_t *parent_sched = h2o_http2_scheduler_get_parent(&stream->_refs.scheduler);
+    if (parent_sched == &conn->scheduler) {
+        return 0;
+    } else {
+        h2o_http2_stream_t *parent_stream = H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, _refs.scheduler, parent_sched);
+        return parent_stream->stream_id;
+    }
+}
+
+static h2o_iovec_t log_priority_actual(h2o_req_t *req)
+{
+    h2o_http2_conn_t *conn = (void *)req->conn;
+    h2o_http2_stream_t *stream = H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, req, req);
+    char *s = h2o_mem_alloc_pool(&stream->req.pool, sizeof(H2O_UINT32_LONGEST_STR ":" H2O_UINT16_LONGEST_STR));
+    size_t len = (size_t)sprintf(s, "%" PRIu32 ":%" PRIu16, get_parent_stream_id(conn, stream),
+                                 h2o_http2_scheduler_get_weight(&stream->_refs.scheduler));
+    return h2o_iovec_init(s, len);
+}
+
+static h2o_iovec_t log_priority_actual_parent(h2o_req_t *req)
+{
+    h2o_http2_conn_t *conn = (void *)req->conn;
+    h2o_http2_stream_t *stream = H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, req, req);
+    char *s = h2o_mem_alloc_pool(&stream->req.pool, sizeof(H2O_UINT32_LONGEST_STR));
+    size_t len = (size_t)sprintf(s, "%" PRIu32, get_parent_stream_id(conn, stream));
+    return h2o_iovec_init(s, len);
+}
+
+static h2o_iovec_t log_priority_actual_weight(h2o_req_t *req)
+{
+    h2o_http2_stream_t *stream = H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, req, req);
+    char *s = h2o_mem_alloc_pool(&stream->req.pool, sizeof(H2O_UINT16_LONGEST_STR));
+    size_t len = (size_t)sprintf(s, "%" PRIu16, h2o_http2_scheduler_get_weight(&stream->_refs.scheduler));
+    return h2o_iovec_init(s, len);
+}
+
+static void on_dos_process_delay(h2o_timeout_entry_t *timer)
+{
+    h2o_http2_conn_t *conn = H2O_STRUCT_FROM_MEMBER(h2o_http2_conn_t, dos_mitigation.process_delay, timer);
+
+    assert(!h2o_timeout_is_linked(&conn->dos_mitigation.process_delay));
+    run_pending_requests(conn);
+}
+
+static h2o_http2_conn_t *create_conn(h2o_context_t *ctx, h2o_hostconf_t **hosts, h2o_socket_t *sock, struct timeval connected_at)
+{
+    static const h2o_conn_callbacks_t callbacks = {
+        get_sockname,              /* stringify address */
+        get_peername,              /* ditto */
+        push_path,                 /* HTTP2 push */
+        get_socket,                /* get underlying socket */
+        h2o_http2_get_debug_state, /* get debug state */
+        {{
+            {log_protocol_version, log_session_reused, log_cipher, log_cipher_bits, log_session_id}, /* ssl */
+            {NULL},                                                                                  /* http1 */
+            {log_stream_id, log_priority_received, log_priority_received_exclusive, log_priority_received_parent,
+             log_priority_received_weight, log_priority_actual, log_priority_actual_parent, log_priority_actual_weight} /* http2 */
+        }} /* loggers */
+    };
+
+    h2o_http2_conn_t *conn = (void *)h2o_create_connection(sizeof(*conn), ctx, hosts, connected_at, &callbacks);
+
+    memset((char *)conn + sizeof(conn->super), 0, sizeof(*conn) - sizeof(conn->super));
+    conn->sock = sock;
+    conn->peer_settings = H2O_HTTP2_SETTINGS_DEFAULT;
+    conn->streams = kh_init(h2o_http2_stream_t);
+    h2o_http2_scheduler_init(&conn->scheduler);
+    conn->state = H2O_HTTP2_CONN_STATE_OPEN;
+    h2o_linklist_insert(&ctx->http2._conns, &conn->_conns);
+    conn->_read_expect = expect_preface;
+    conn->_input_header_table.hpack_capacity = conn->_input_header_table.hpack_max_capacity =
+        H2O_HTTP2_SETTINGS_DEFAULT.header_table_size;
+    h2o_http2_window_init(&conn->_input_window, &H2O_HTTP2_SETTINGS_DEFAULT);
+    conn->_output_header_table.hpack_capacity = H2O_HTTP2_SETTINGS_HOST.header_table_size;
+    h2o_linklist_init_anchor(&conn->_pending_reqs);
+    h2o_buffer_init(&conn->_write.buf, &wbuf_buffer_prototype);
+    h2o_linklist_init_anchor(&conn->_write.streams_to_proceed);
+    conn->_write.timeout_entry.cb = emit_writereq;
+    h2o_http2_window_init(&conn->_write.window, &conn->peer_settings);
+
+    conn->dos_mitigation.process_delay.cb = on_dos_process_delay;
+    conn->dos_mitigation.reset_budget = conn->super.ctx->globalconf->http2.max_concurrent_requests_per_connection;
+
+    return conn;
+}
+
+static int update_push_memo(h2o_http2_conn_t *conn, h2o_req_t *src_req, const char *abspath, size_t abspath_len)
+{
+
+    if (conn->push_memo == NULL)
+        conn->push_memo = h2o_cache_create(0, 1024, 1, NULL);
+
+    /* uses the hash as the key */
+    h2o_cache_hashcode_t url_hash = h2o_cache_calchash(src_req->input.scheme->name.base, src_req->input.scheme->name.len) ^
+                                    h2o_cache_calchash(src_req->input.authority.base, src_req->input.authority.len) ^
+                                    h2o_cache_calchash(abspath, abspath_len);
+    return h2o_cache_set(conn->push_memo, 0, h2o_iovec_init(&url_hash, sizeof(url_hash)), url_hash, h2o_iovec_init(NULL, 0));
+}
+
+static void push_path(h2o_req_t *src_req, const char *abspath, size_t abspath_len)
+{
+    h2o_http2_conn_t *conn = (void *)src_req->conn;
+    h2o_http2_stream_t *src_stream = H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, req, src_req);
+
+    /* RFC 7540 8.2.1: PUSH_PROMISE frames can be sent by the server in response to any client-initiated stream */
+    if (h2o_http2_stream_is_push(src_stream->stream_id))
+        return;
+
+    if (!src_stream->req.hostconf->http2.push_preload || !conn->peer_settings.enable_push ||
+        conn->num_streams.push.open >= conn->peer_settings.max_concurrent_streams)
+        return;
+
+    if (conn->push_stream_ids.max_open >= 0x7ffffff0)
+        return;
+    if (!(h2o_linklist_is_empty(&conn->_pending_reqs) && can_run_requests(conn)))
+        return;
+
+    if (h2o_find_header(&src_stream->req.headers, H2O_TOKEN_X_FORWARDED_FOR, -1) != -1)
+        return;
+
+    if (src_stream->cache_digests != NULL) {
+        h2o_iovec_t url = h2o_concat(&src_stream->req.pool, src_stream->req.input.scheme->name, h2o_iovec_init(H2O_STRLIT("://")),
+                                     src_stream->req.input.authority, h2o_iovec_init(abspath, abspath_len));
+        if (h2o_cache_digests_lookup_by_url(src_stream->cache_digests, url.base, url.len) == H2O_CACHE_DIGESTS_STATE_FRESH)
+            return;
+    }
+
+    /* delayed initialization of casper (cookie-based), that MAY be used together to cache-digests */
+    if (src_stream->req.hostconf->http2.casper.capacity_bits != 0) {
+        if (!src_stream->pull.casper_is_ready) {
+            src_stream->pull.casper_is_ready = 1;
+            if (conn->casper == NULL)
+                h2o_http2_conn_init_casper(conn, src_stream->req.hostconf->http2.casper.capacity_bits);
+            ssize_t header_index;
+            for (header_index = -1;
+                 (header_index = h2o_find_header(&src_stream->req.headers, H2O_TOKEN_COOKIE, header_index)) != -1;) {
+                h2o_header_t *header = src_stream->req.headers.entries + header_index;
+                h2o_http2_casper_consume_cookie(conn->casper, header->value.base, header->value.len);
+            }
+        }
+    }
+
+    /* update the push memo, and if it already pushed on the same connection, return */
+    if (update_push_memo(conn, &src_stream->req, abspath, abspath_len))
+        return;
+
+    /* open the stream */
+    h2o_http2_stream_t *stream = h2o_http2_stream_open(conn, conn->push_stream_ids.max_open + 2, NULL, &h2o_http2_default_priority);
+    stream->received_priority.dependency = src_stream->stream_id;
+    stream->push.parent_stream_id = src_stream->stream_id;
+    h2o_http2_scheduler_open(&stream->_refs.scheduler, &src_stream->_refs.scheduler.node, 16, 0);
+    h2o_http2_stream_prepare_for_request(conn, stream);
+
+    /* setup request */
+    stream->req.input.method = (h2o_iovec_t){H2O_STRLIT("GET")};
+    stream->req.input.scheme = src_stream->req.input.scheme;
+    stream->req.input.authority =
+        h2o_strdup(&stream->req.pool, src_stream->req.input.authority.base, src_stream->req.input.authority.len);
+    stream->req.input.path = h2o_strdup(&stream->req.pool, abspath, abspath_len);
+    stream->req.version = 0x200;
+
+    { /* copy headers that may affect the response (of a cacheable response) */
+        size_t i;
+        for (i = 0; i != src_stream->req.headers.size; ++i) {
+            h2o_header_t *src_header = src_stream->req.headers.entries + i;
+            if (h2o_iovec_is_token(src_header->name)) {
+                h2o_token_t *token = H2O_STRUCT_FROM_MEMBER(h2o_token_t, buf, src_header->name);
+                if (token->copy_for_push_request) {
+                    h2o_add_header(&stream->req.pool, &stream->req.headers, token, NULL,
+                                   h2o_strdup(&stream->req.pool, src_header->value.base, src_header->value.len).base,
+                                   src_header->value.len);
+                }
+            }
+        }
+    }
+
+    execute_or_enqueue_request(conn, stream);
+
+    /* send push-promise ASAP (before the parent stream gets closed), even if execute_or_enqueue_request did not trigger the
+     * invocation of send_headers */
+    if (!stream->push.promise_sent && stream->state != H2O_HTTP2_STREAM_STATE_END_STREAM)
+        h2o_http2_stream_send_push_promise(conn, stream);
+}
+
+static int foreach_request(h2o_context_t *ctx, int (*cb)(h2o_req_t *req, void *cbdata), void *cbdata)
+{
+    h2o_linklist_t *node;
+
+    for (node = ctx->http2._conns.next; node != &ctx->http2._conns; node = node->next) {
+        h2o_http2_conn_t *conn = H2O_STRUCT_FROM_MEMBER(h2o_http2_conn_t, _conns, node);
+        h2o_http2_stream_t *stream;
+        kh_foreach_value(conn->streams, stream, {
+            int ret = cb(&stream->req, cbdata);
+            if (ret != 0)
+                return ret;
+        });
+    }
+    return 0;
+}
+
+void h2o_http2_accept(h2o_accept_ctx_t *ctx, h2o_socket_t *sock, struct timeval connected_at)
+{
+    h2o_http2_conn_t *conn = create_conn(ctx->ctx, ctx->hosts, sock, connected_at);
+    sock->data = conn;
+    h2o_socket_read_start(conn->sock, on_read);
+    update_idle_timeout(conn);
+    if (sock->input->size != 0)
+        on_read(sock, 0);
+}
+
+int h2o_http2_handle_upgrade(h2o_req_t *req, struct timeval connected_at)
+{
+    h2o_http2_conn_t *http2conn = create_conn(req->conn->ctx, req->conn->hosts, NULL, connected_at);
+    h2o_http2_stream_t *stream;
+    ssize_t connection_index, settings_index;
+    h2o_iovec_t settings_decoded;
+    const char *err_desc;
+
+    assert(req->version < 0x200); /* from HTTP/1.x */
+
+    /* check that "HTTP2-Settings" is declared in the connection header */
+    connection_index = h2o_find_header(&req->headers, H2O_TOKEN_CONNECTION, -1);
+    assert(connection_index != -1);
+    if (!h2o_contains_token(req->headers.entries[connection_index].value.base, req->headers.entries[connection_index].value.len,
+                            H2O_STRLIT("http2-settings"), ',')) {
+        goto Error;
+    }
+
+    /* decode the settings */
+    if ((settings_index = h2o_find_header(&req->headers, H2O_TOKEN_HTTP2_SETTINGS, -1)) == -1) {
+        goto Error;
+    }
+    if ((settings_decoded = h2o_decode_base64url(&req->pool, req->headers.entries[settings_index].value.base,
+                                                 req->headers.entries[settings_index].value.len))
+            .base == NULL) {
+        goto Error;
+    }
+    if (h2o_http2_update_peer_settings(&http2conn->peer_settings, (uint8_t *)settings_decoded.base, settings_decoded.len,
+                                       &err_desc) != 0) {
+        goto Error;
+    }
+
+    /* open the stream, now that the function is guaranteed to succeed */
+    stream = h2o_http2_stream_open(http2conn, 1, req, &h2o_http2_default_priority);
+    h2o_http2_scheduler_open(&stream->_refs.scheduler, &http2conn->scheduler, h2o_http2_default_priority.weight, 0);
+    h2o_http2_stream_prepare_for_request(http2conn, stream);
+
+    /* send response */
+    req->res.status = 101;
+    req->res.reason = "Switching Protocols";
+    h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_UPGRADE, NULL, H2O_STRLIT("h2c"));
+    h2o_http1_upgrade(req, (h2o_iovec_t *)&SETTINGS_HOST_BIN, 1, on_upgrade_complete, http2conn);
+
+    return 0;
+Error:
+    h2o_linklist_unlink(&http2conn->_conns);
+    kh_destroy(h2o_http2_stream_t, http2conn->streams);
+    free(http2conn);
+    return -1;
+}
diff --git a/debian/vendor-h2o/lib/http2/frame.c b/debian/vendor-h2o/lib/http2/frame.c
new file mode 100644
index 0000000..86abdaa
--- /dev/null
+++ b/debian/vendor-h2o/lib/http2/frame.c
@@ -0,0 +1,290 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o.h"
+#include "h2o/http2.h"
+#include "h2o/http2_internal.h"
+
+const h2o_http2_settings_t H2O_HTTP2_SETTINGS_DEFAULT = {
+    /* header_table_size */ 4096,
+    /* enable_push */ 1,
+    /* max_concurrent_streams */ UINT32_MAX,
+    /* initial_window_size */ 65535,
+    /* max_frame_size */ 16384};
+
+int h2o_http2_update_peer_settings(h2o_http2_settings_t *settings, const uint8_t *src, size_t len, const char **err_desc)
+{
+    for (; len >= 6; len -= 6, src += 6) {
+        uint16_t identifier = h2o_http2_decode16u(src);
+        uint32_t value = h2o_http2_decode32u(src + 2);
+        switch (identifier) {
+#define SET(label, member, min, max, err_code)                                                                                     \
+    case H2O_HTTP2_SETTINGS_##label:                                                                                               \
+        if (!(min <= value && value <= max)) {                                                                                     \
+            *err_desc = "invalid SETTINGS frame";                                                                                  \
+            return err_code;                                                                                                       \
+        }                                                                                                                          \
+        settings->member = value;                                                                                                  \
+        break
+            SET(HEADER_TABLE_SIZE, header_table_size, 0, UINT32_MAX, 0);
+            SET(ENABLE_PUSH, enable_push, 0, 1, H2O_HTTP2_ERROR_PROTOCOL);
+            SET(MAX_CONCURRENT_STREAMS, max_concurrent_streams, 0, UINT32_MAX, 0);
+            SET(INITIAL_WINDOW_SIZE, initial_window_size, 0, 0x7fffffff, H2O_HTTP2_ERROR_FLOW_CONTROL);
+            SET(MAX_FRAME_SIZE, max_frame_size, 16384, 16777215, H2O_HTTP2_ERROR_PROTOCOL);
+#undef SET
+        default:
+            /* ignore unknown (5.5) */
+            break;
+        }
+    }
+
+    if (len != 0)
+        return H2O_HTTP2_ERROR_FRAME_SIZE;
+    return 0;
+}
+
+uint8_t *h2o_http2_encode_frame_header(uint8_t *dst, size_t length, uint8_t type, uint8_t flags, int32_t stream_id)
+{
+    if (length > 0xffffff)
+        h2o_fatal("invalid length");
+
+    dst = h2o_http2_encode24u(dst, (uint32_t)length);
+    *dst++ = type;
+    *dst++ = flags;
+    dst = h2o_http2_encode32u(dst, stream_id);
+
+    return dst;
+}
+
+static uint8_t *allocate_frame(h2o_buffer_t **buf, size_t length, uint8_t type, uint8_t flags, int32_t stream_id)
+{
+    h2o_iovec_t alloced = h2o_buffer_reserve(buf, H2O_HTTP2_FRAME_HEADER_SIZE + length);
+    (*buf)->size += H2O_HTTP2_FRAME_HEADER_SIZE + length;
+    return h2o_http2_encode_frame_header((uint8_t *)alloced.base, length, type, flags, stream_id);
+}
+
+void h2o_http2__encode_rst_stream_frame(h2o_buffer_t **buf, uint32_t stream_id, int errnum)
+{
+    uint8_t *dst = allocate_frame(buf, 4, H2O_HTTP2_FRAME_TYPE_RST_STREAM, 0, stream_id);
+    dst = h2o_http2_encode32u(dst, errnum);
+}
+
+void h2o_http2_encode_ping_frame(h2o_buffer_t **buf, int is_ack, const uint8_t *data)
+{
+    uint8_t *dst = allocate_frame(buf, 8, H2O_HTTP2_FRAME_TYPE_PING, is_ack ? H2O_HTTP2_FRAME_FLAG_ACK : 0, 0);
+    memcpy(dst, data, 8);
+    dst += 8;
+}
+
+void h2o_http2_encode_goaway_frame(h2o_buffer_t **buf, uint32_t last_stream_id, int errnum, h2o_iovec_t additional_data)
+{
+    uint8_t *dst = allocate_frame(buf, 8 + additional_data.len, H2O_HTTP2_FRAME_TYPE_GOAWAY, 0, 0);
+    dst = h2o_http2_encode32u(dst, last_stream_id);
+    dst = h2o_http2_encode32u(dst, (uint32_t)-errnum);
+    h2o_memcpy(dst, additional_data.base, additional_data.len);
+}
+
+void h2o_http2_encode_window_update_frame(h2o_buffer_t **buf, uint32_t stream_id, int32_t window_size_increment)
+{
+    uint8_t *dst = allocate_frame(buf, 4, H2O_HTTP2_FRAME_TYPE_WINDOW_UPDATE, 0, stream_id);
+    dst = h2o_http2_encode32u(dst, window_size_increment);
+}
+
+ssize_t h2o_http2_decode_frame(h2o_http2_frame_t *frame, const uint8_t *src, size_t len, const h2o_http2_settings_t *host_settings,
+                               const char **err_desc)
+{
+    if (len < H2O_HTTP2_FRAME_HEADER_SIZE)
+        return H2O_HTTP2_ERROR_INCOMPLETE;
+
+    frame->length = h2o_http2_decode24u(src);
+    frame->type = src[3];
+    frame->flags = src[4];
+    frame->stream_id = h2o_http2_decode32u(src + 5) & 0x7fffffff;
+
+    if (frame->length > host_settings->max_frame_size)
+        return H2O_HTTP2_ERROR_FRAME_SIZE;
+
+    if (len < H2O_HTTP2_FRAME_HEADER_SIZE + frame->length)
+        return H2O_HTTP2_ERROR_INCOMPLETE;
+
+    frame->payload = src + H2O_HTTP2_FRAME_HEADER_SIZE;
+
+    return H2O_HTTP2_FRAME_HEADER_SIZE + frame->length;
+}
+
+int h2o_http2_decode_data_payload(h2o_http2_data_payload_t *payload, const h2o_http2_frame_t *frame, const char **err_desc)
+{
+    if (frame->stream_id == 0) {
+        *err_desc = "invalid stream id in DATA frame";
+        return H2O_HTTP2_ERROR_PROTOCOL;
+    }
+
+    if ((frame->flags & H2O_HTTP2_FRAME_FLAG_PADDED) != 0) {
+        uint8_t padding_length;
+        if (frame->length < 1) {
+            *err_desc = "invalid DATA frame";
+            return H2O_HTTP2_ERROR_PROTOCOL;
+        }
+        padding_length = frame->payload[0];
+        if (frame->length < 1 + padding_length) {
+            *err_desc = "invalid DATA frame";
+            return H2O_HTTP2_ERROR_PROTOCOL;
+        }
+        payload->data = frame->payload + 1;
+        payload->length = frame->length - (1 + padding_length);
+    } else {
+        payload->data = frame->payload;
+        payload->length = frame->length;
+    }
+    return 0;
+}
+
+static const uint8_t *decode_priority(h2o_http2_priority_t *priority, const uint8_t *src)
+{
+    uint32_t u4 = h2o_http2_decode32u(src);
+    src += 4;
+    priority->exclusive = u4 >> 31;
+    priority->dependency = u4 & 0x7fffffff;
+    priority->weight = (uint16_t)*src++ + 1;
+    return src;
+}
+
+int h2o_http2_decode_headers_payload(h2o_http2_headers_payload_t *payload, const h2o_http2_frame_t *frame, const char **err_desc)
+{
+    const uint8_t *src = frame->payload, *src_end = frame->payload + frame->length;
+
+    if (frame->stream_id == 0) {
+        *err_desc = "invalid stream id in HEADERS frame";
+        return H2O_HTTP2_ERROR_PROTOCOL;
+    }
+
+    if ((frame->flags & H2O_HTTP2_FRAME_FLAG_PADDED) != 0) {
+        uint32_t padlen;
+        if (src == src_end) {
+            *err_desc = "invalid HEADERS frame";
+            return H2O_HTTP2_ERROR_PROTOCOL;
+        }
+        padlen = *src++;
+        if (src_end - src < padlen) {
+            *err_desc = "invalid HEADERS frame";
+            return H2O_HTTP2_ERROR_PROTOCOL;
+        }
+        src_end -= padlen;
+    }
+
+    if ((frame->flags & H2O_HTTP2_FRAME_FLAG_PRIORITY) != 0) {
+        if (src_end - src < 5)
+            return -1;
+        src = decode_priority(&payload->priority, src);
+    } else {
+        payload->priority = h2o_http2_default_priority;
+    }
+
+    payload->headers = src;
+    payload->headers_len = src_end - src;
+
+    return 0;
+}
+
+int h2o_http2_decode_priority_payload(h2o_http2_priority_t *payload, const h2o_http2_frame_t *frame, const char **err_desc)
+{
+    if (frame->stream_id == 0) {
+        *err_desc = "invalid stream id in PRIORITY frame";
+        return H2O_HTTP2_ERROR_PROTOCOL;
+    }
+    if (frame->length != 5) {
+        *err_desc = "invalid PRIORITY frame";
+        return H2O_HTTP2_ERROR_FRAME_SIZE;
+    }
+
+    decode_priority(payload, frame->payload);
+    return 0;
+}
+
+int h2o_http2_decode_rst_stream_payload(h2o_http2_rst_stream_payload_t *payload, const h2o_http2_frame_t *frame,
+                                        const char **err_desc)
+{
+    if (frame->stream_id == 0) {
+        *err_desc = "invalid stream id in RST_STREAM frame";
+        return H2O_HTTP2_ERROR_PROTOCOL;
+    }
+    if (frame->length != sizeof(payload->error_code)) {
+        *err_desc = "invalid RST_STREAM frame";
+        return H2O_HTTP2_ERROR_FRAME_SIZE;
+    }
+
+    payload->error_code = h2o_http2_decode32u(frame->payload);
+    return 0;
+}
+
+int h2o_http2_decode_ping_payload(h2o_http2_ping_payload_t *payload, const h2o_http2_frame_t *frame, const char **err_desc)
+{
+    if (frame->stream_id != 0) {
+        *err_desc = "invalid PING frame";
+        return H2O_HTTP2_ERROR_PROTOCOL;
+    }
+    if (frame->length != sizeof(payload->data)) {
+        *err_desc = "invalid PING frame";
+        return H2O_HTTP2_ERROR_FRAME_SIZE;
+    }
+
+    memcpy(payload->data, frame->payload, sizeof(payload->data));
+    return 0;
+}
+
+int h2o_http2_decode_goaway_payload(h2o_http2_goaway_payload_t *payload, const h2o_http2_frame_t *frame, const char **err_desc)
+{
+    if (frame->stream_id != 0) {
+        *err_desc = "invalid stream id in GOAWAY frame";
+        return H2O_HTTP2_ERROR_PROTOCOL;
+    }
+    if (frame->length < 8) {
+        *err_desc = "invalid GOAWAY frame";
+        return H2O_HTTP2_ERROR_FRAME_SIZE;
+    }
+
+    payload->last_stream_id = h2o_http2_decode32u(frame->payload) & 0x7fffffff;
+    payload->error_code = h2o_http2_decode32u(frame->payload + 4);
+    if ((payload->debug_data.len = frame->length - 8) != 0)
+        payload->debug_data.base = (char *)frame->payload + 8;
+    else
+        payload->debug_data.base = NULL;
+
+    return 0;
+}
+
+int h2o_http2_decode_window_update_payload(h2o_http2_window_update_payload_t *payload, const h2o_http2_frame_t *frame,
+                                           const char **err_desc, int *err_is_stream_level)
+{
+    if (frame->length != 4) {
+        *err_is_stream_level = 0;
+        return H2O_HTTP2_ERROR_FRAME_SIZE;
+    }
+
+    payload->window_size_increment = h2o_http2_decode32u(frame->payload) & 0x7fffffff;
+    if (payload->window_size_increment == 0) {
+        *err_is_stream_level = frame->stream_id != 0;
+        *err_desc = "invalid WINDOW_UPDATE frame";
+        return H2O_HTTP2_ERROR_PROTOCOL;
+    }
+
+    return 0;
+}
diff --git a/debian/vendor-h2o/lib/http2/hpack.c b/debian/vendor-h2o/lib/http2/hpack.c
new file mode 100644
index 0000000..4adb15c
--- /dev/null
+++ b/debian/vendor-h2o/lib/http2/hpack.c
@@ -0,0 +1,917 @@
+/*
+ * Copyright (c) 2014-2016 DeNA Co., Ltd., Kazuho Oku, Fastly, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "h2o.h"
+#include "h2o/http2.h"
+#include "h2o/http2_internal.h"
+
+#define HEADER_TABLE_OFFSET 62
+#define HEADER_TABLE_ENTRY_SIZE_OFFSET 32
+#define STATUS_HEADER_MAX_SIZE 5
+#define CONTENT_LENGTH_HEADER_MAX_SIZE                                                                                             \
+    (3 + sizeof(H2O_UINT64_LONGEST_STR) - 1) /* uses Literal Header Field without Indexing (RFC7541 6.2.2) */
+
+struct st_h2o_hpack_static_table_entry_t {
+    const h2o_token_t *name;
+    const h2o_iovec_t value;
+};
+
+struct st_h2o_decode_header_result_t {
+    h2o_iovec_t *name;
+    h2o_iovec_t *value;
+};
+
+#include "hpack_huffman_table.h"
+#include "hpack_static_table.h"
+
+static inline int value_is_part_of_static_table(const h2o_iovec_t *value)
+{
+    return &h2o_hpack_static_table[0].value <= value &&
+           value <= &h2o_hpack_static_table[sizeof(h2o_hpack_static_table) / sizeof(h2o_hpack_static_table[0]) - 1].value;
+}
+
+static h2o_iovec_t *alloc_buf(h2o_mem_pool_t *pool, size_t len)
+{
+    h2o_iovec_t *buf = h2o_mem_alloc_shared(pool, sizeof(h2o_iovec_t) + len + 1, NULL);
+    buf->base = (char *)buf + sizeof(h2o_iovec_t);
+    buf->len = len;
+    return buf;
+}
+
+/* validate a header value against https://tools.ietf.org/html/rfc7230#section-3.2 */
+static int contains_invalid_field_value_char(const char *s, size_t len)
+{
+    /* all printable chars + horizontal tab */
+    static const char valid_h2_field_value_char[] = {
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*    0-31 */
+        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*   32-63 */
+        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*   64-95 */
+        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, /*  96-127 */
+        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 128-159 */
+        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 160-191 */
+        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 192-223 */
+        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 224-255 */
+    };
+
+    for (; len != 0; ++s, --len) {
+        unsigned char ch = (unsigned char)*s;
+        if (!valid_h2_field_value_char[ch]) {
+            return 1;
+        }
+    }
+    return 0;
+}
+
+static const char *err_found_upper_case_in_header_name = "found an upper-case letter in header name";
+static const char *soft_err_found_invalid_char_in_header_name = "found an invalid character in header name";
+static const char *soft_err_found_invalid_char_in_header_value = "found an invalid character in header value";
+
+/* validate a header name against https://tools.ietf.org/html/rfc7230#section-3.2,
+ * in addition to that, we disallow upper case chars as well.
+ * This sets @err_desc for all invalid characters, but only returns true
+ * for upper case characters, this is because we return a protocol error
+ * in that case. */
+static const char *validate_header_name(const char *s, size_t len)
+{
+    const char *ret = NULL;
+    /* all printable chars, except upper case and separator characters */
+    static const char valid_h2_header_name_char[] = {
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*    0-31 */
+        0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, /*   32-63 */
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, /*   64-95 */
+        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, /*  96-127 */
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 128-159 */
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 160-191 */
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 192-223 */
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 224-255 */
+    };
+
+    for (; len != 0; ++s, --len) {
+        unsigned char ch = (unsigned char)*s;
+        if (!valid_h2_header_name_char[ch]) {
+            if (ch - 'A' < 26U) {
+                return err_found_upper_case_in_header_name;
+            }
+            ret = soft_err_found_invalid_char_in_header_name;
+        }
+    }
+    return ret;
+}
+
+static int32_t decode_int(const uint8_t **src, const uint8_t *src_end, size_t prefix_bits)
+{
+    int32_t value, mult;
+    uint8_t prefix_max = (1 << prefix_bits) - 1;
+
+    if (*src >= src_end)
+        return -1;
+
+    value = (uint8_t) * (*src)++ & prefix_max;
+    if (value != prefix_max) {
+        return value;
+    }
+
+    /* we only allow at most 4 octets (excluding prefix) to be used as int (== 2**(4*7) == 2**28) */
+    if (src_end - *src > 4)
+        src_end = *src + 4;
+
+    value = prefix_max;
+    for (mult = 1;; mult *= 128) {
+        if (*src >= src_end)
+            return -1;
+        value += (**src & 127) * mult;
+        if ((*(*src)++ & 128) == 0)
+            return value;
+    }
+}
+
+static char *huffdecode4(char *dst, uint8_t in, uint8_t *state, int *maybe_eos, uint8_t *seen_char_types)
+{
+    const nghttp2_huff_decode *entry = huff_decode_table[*state] + in;
+
+    if ((entry->flags & NGHTTP2_HUFF_FAIL) != 0)
+        return NULL;
+    if ((entry->flags & NGHTTP2_HUFF_SYM) != 0) {
+        *dst++ = entry->sym;
+        *seen_char_types |= (entry->flags & NGHTTP2_HUFF_INVALID_CHARS);
+    }
+    *state = entry->state;
+    *maybe_eos = (entry->flags & NGHTTP2_HUFF_ACCEPTED) != 0;
+
+    return dst;
+}
+
+static h2o_iovec_t *decode_huffman(h2o_mem_pool_t *pool, const uint8_t *src, size_t len, uint8_t *seen_char_types)
+{
+    const uint8_t *src_end = src + len;
+    char *dst;
+    uint8_t state = 0;
+    int maybe_eos = 1;
+    h2o_iovec_t *dst_buf = alloc_buf(pool, len * 2); /* max compression ratio is >= 0.5 */
+
+    dst = dst_buf->base;
+    for (; src < src_end; src++) {
+        if ((dst = huffdecode4(dst, *src >> 4, &state, &maybe_eos, seen_char_types)) == NULL)
+            return NULL;
+        if ((dst = huffdecode4(dst, *src & 0xf, &state, &maybe_eos, seen_char_types)) == NULL)
+            return NULL;
+    }
+
+    if (!maybe_eos)
+        return NULL;
+
+    *dst = '\0';
+    dst_buf->len = dst - dst_buf->base;
+    return dst_buf;
+}
+
+static h2o_iovec_t *decode_string(h2o_mem_pool_t *pool, const uint8_t **src, const uint8_t *src_end, int is_header_name,
+                                  const char **err_desc)
+{
+    h2o_iovec_t *ret;
+    int is_huffman;
+    int32_t len;
+
+    if (*src >= src_end)
+        return NULL;
+
+    is_huffman = (**src & 0x80) != 0;
+    if ((len = decode_int(src, src_end, 7)) == -1)
+        return NULL;
+
+    if (is_huffman) {
+        uint8_t hflags = 0;
+        if (*src + len > src_end)
+            return NULL;
+        if ((ret = decode_huffman(pool, *src, len, &hflags)) == NULL)
+            return NULL;
+        if (is_header_name) {
+            if (ret->len <= 0) {
+                return NULL;
+            }
+            /* pseudo-headers are checked later in `decode_header` */
+            if (hflags & NGHTTP2_HUFF_INVALID_FOR_HEADER_NAME && ret->base[0] != ':') {
+                if (hflags & NGHTTP2_HUFF_UPPER_CASE_CHAR) {
+                    *err_desc = err_found_upper_case_in_header_name;
+                    return NULL;
+                } else {
+                    *err_desc = soft_err_found_invalid_char_in_header_name;
+                }
+            }
+        } else {
+            if (hflags & NGHTTP2_HUFF_INVALID_FOR_HEADER_VALUE) {
+                *err_desc = soft_err_found_invalid_char_in_header_value;
+            }
+        }
+    } else {
+        if (*src + len > src_end)
+            return NULL;
+        if (is_header_name) {
+            /* pseudo-headers are checked later in `decode_header` */
+            if (**src != (uint8_t)':') {
+                *err_desc = validate_header_name((char *)*src, len);
+                if (*err_desc == err_found_upper_case_in_header_name) {
+                    return NULL;
+                }
+            }
+        } else {
+            if (contains_invalid_field_value_char((char *)*src, len)) {
+                *err_desc = soft_err_found_invalid_char_in_header_value;
+            }
+        }
+        ret = alloc_buf(pool, len);
+        memcpy(ret->base, *src, len);
+        ret->base[len] = '\0';
+    }
+    *src += len;
+
+    return ret;
+}
+
+static void header_table_evict_one(h2o_hpack_header_table_t *table)
+{
+    struct st_h2o_hpack_header_table_entry_t *entry;
+    assert(table->num_entries != 0);
+
+    entry = h2o_hpack_header_table_get(table, --table->num_entries);
+    table->hpack_size -= entry->name->len + entry->value->len + HEADER_TABLE_ENTRY_SIZE_OFFSET;
+    if (!h2o_iovec_is_token(entry->name))
+        h2o_mem_release_shared(entry->name);
+    if (!value_is_part_of_static_table(entry->value))
+        h2o_mem_release_shared(entry->value);
+    memset(entry, 0, sizeof(*entry));
+}
+
+static struct st_h2o_hpack_header_table_entry_t *header_table_add(h2o_hpack_header_table_t *table, size_t size_add,
+                                                                  size_t max_num_entries)
+{
+    /* adjust the size */
+    while (table->num_entries != 0 && table->hpack_size + size_add > table->hpack_capacity)
+        header_table_evict_one(table);
+    while (max_num_entries <= table->num_entries)
+        header_table_evict_one(table);
+    if (table->num_entries == 0) {
+        assert(table->hpack_size == 0);
+        if (size_add > table->hpack_capacity)
+            return NULL;
+    }
+    table->hpack_size += size_add;
+
+    /* grow the entries if full */
+    if (table->num_entries == table->entry_capacity) {
+        size_t new_capacity = table->num_entries * 2;
+        if (new_capacity < 16)
+            new_capacity = 16;
+        struct st_h2o_hpack_header_table_entry_t *new_entries =
+            h2o_mem_alloc(new_capacity * sizeof(struct st_h2o_hpack_header_table_entry_t));
+        if (table->num_entries != 0) {
+            size_t src_index = table->entry_start_index, dst_index = 0;
+            do {
+                new_entries[dst_index] = table->entries[src_index];
+                ++dst_index;
+                src_index = (src_index + 1) % table->entry_capacity;
+            } while (dst_index != table->num_entries);
+        }
+        memset(new_entries + table->num_entries, 0, sizeof(*new_entries) * (new_capacity - table->num_entries));
+        free(table->entries);
+        table->entries = new_entries;
+        table->entry_capacity = new_capacity;
+        table->entry_start_index = 0;
+    }
+
+    ++table->num_entries;
+    table->entry_start_index = (table->entry_start_index + table->entry_capacity - 1) % table->entry_capacity;
+    return table->entries + table->entry_start_index;
+}
+
+static int decode_header(h2o_mem_pool_t *pool, struct st_h2o_decode_header_result_t *result,
+                         h2o_hpack_header_table_t *hpack_header_table, const uint8_t **const src, const uint8_t *src_end,
+                         const char **err_desc)
+{
+    int32_t index = 0;
+    int value_is_indexed = 0, do_index = 0;
+
+Redo:
+    if (*src >= src_end)
+        return H2O_HTTP2_ERROR_COMPRESSION;
+
+    /* determine the mode and handle accordingly */
+    if (**src >= 128) {
+        /* indexed header field representation */
+        if ((index = decode_int(src, src_end, 7)) <= 0)
+            return H2O_HTTP2_ERROR_COMPRESSION;
+        value_is_indexed = 1;
+    } else if (**src >= 64) {
+        /* literal header field with incremental handling */
+        if (**src == 64) {
+            ++*src;
+        } else if ((index = decode_int(src, src_end, 6)) <= 0) {
+            return H2O_HTTP2_ERROR_COMPRESSION;
+        }
+        do_index = 1;
+    } else if (**src < 32) {
+        /* literal header field without indexing / never indexed */
+        if ((**src & 0xf) == 0) {
+            ++*src;
+        } else if ((index = decode_int(src, src_end, 4)) <= 0) {
+            return H2O_HTTP2_ERROR_COMPRESSION;
+        }
+    } else {
+        /* size update */
+        int new_apacity;
+        if ((new_apacity = decode_int(src, src_end, 5)) < 0) {
+            return H2O_HTTP2_ERROR_COMPRESSION;
+        }
+        if (new_apacity > hpack_header_table->hpack_max_capacity) {
+            return H2O_HTTP2_ERROR_COMPRESSION;
+        }
+        hpack_header_table->hpack_capacity = new_apacity;
+        while (hpack_header_table->num_entries != 0 && hpack_header_table->hpack_size > hpack_header_table->hpack_capacity) {
+            header_table_evict_one(hpack_header_table);
+        }
+        goto Redo;
+    }
+
+    /* determine the header */
+    if (index > 0) {
+        /* existing name (and value?) */
+        if (index < HEADER_TABLE_OFFSET) {
+            result->name = (h2o_iovec_t *)h2o_hpack_static_table[index - 1].name;
+            if (value_is_indexed) {
+                result->value = (h2o_iovec_t *)&h2o_hpack_static_table[index - 1].value;
+            }
+        } else if (index - HEADER_TABLE_OFFSET < hpack_header_table->num_entries) {
+            struct st_h2o_hpack_header_table_entry_t *entry =
+                h2o_hpack_header_table_get(hpack_header_table, index - HEADER_TABLE_OFFSET);
+            *err_desc = entry->err_desc;
+            result->name = entry->name;
+            if (!h2o_iovec_is_token(result->name))
+                h2o_mem_link_shared(pool, result->name);
+            if (value_is_indexed) {
+                result->value = entry->value;
+                h2o_mem_link_shared(pool, result->value);
+            }
+        } else {
+            return H2O_HTTP2_ERROR_COMPRESSION;
+        }
+    } else {
+        /* non-existing name */
+        const h2o_token_t *name_token;
+        if ((result->name = decode_string(pool, src, src_end, 1, err_desc)) == NULL) {
+            if (*err_desc == err_found_upper_case_in_header_name) {
+                return H2O_HTTP2_ERROR_PROTOCOL;
+            }
+            return H2O_HTTP2_ERROR_COMPRESSION;
+        }
+        if (!*err_desc) {
+            /* predefined header names should be interned */
+            if ((name_token = h2o_lookup_token(result->name->base, result->name->len)) != NULL) {
+                result->name = (h2o_iovec_t *)&name_token->buf;
+            }
+        }
+    }
+
+    /* determine the value (if necessary) */
+    if (!value_is_indexed) {
+        if ((result->value = decode_string(pool, src, src_end, 0, err_desc)) == NULL) {
+            return H2O_HTTP2_ERROR_COMPRESSION;
+        }
+    }
+
+    /* add the decoded header to the header table if necessary */
+    if (do_index) {
+        struct st_h2o_hpack_header_table_entry_t *entry =
+            header_table_add(hpack_header_table, result->name->len + result->value->len + HEADER_TABLE_ENTRY_SIZE_OFFSET, SIZE_MAX);
+        if (entry != NULL) {
+            entry->err_desc = *err_desc;
+            entry->name = result->name;
+            if (!h2o_iovec_is_token(entry->name))
+                h2o_mem_addref_shared(entry->name);
+            entry->value = result->value;
+            if (!value_is_part_of_static_table(entry->value))
+                h2o_mem_addref_shared(entry->value);
+        }
+    }
+
+    return *err_desc ? H2O_HTTP2_ERROR_INVALID_HEADER_CHAR : 0;
+}
+
+static uint8_t *encode_status(uint8_t *dst, int status)
+{
+    /* see also: STATUS_HEADER_MAX_SIZE */
+
+    assert(100 <= status && status <= 999);
+
+    switch (status) {
+#define COMMON_CODE(code, st)                                                                                                      \
+    case st:                                                                                                                       \
+        *dst++ = 0x80 | code;                                                                                                      \
+        break
+        COMMON_CODE(8, 200);
+        COMMON_CODE(9, 204);
+        COMMON_CODE(10, 206);
+        COMMON_CODE(11, 304);
+        COMMON_CODE(12, 400);
+        COMMON_CODE(13, 404);
+        COMMON_CODE(14, 500);
+#undef COMMON_CODE
+    default:
+        /* use literal header field without indexing - indexed name */
+        *dst++ = 8;
+        *dst++ = 3;
+        sprintf((char *)dst, "%d", status);
+        dst += 3;
+        break;
+    }
+
+    return dst;
+}
+
+static uint8_t *encode_content_length(uint8_t *dst, size_t value)
+{
+    char buf[32], *p = buf + sizeof(buf);
+    size_t l;
+
+    do {
+        *--p = '0' + value % 10;
+    } while ((value /= 10) != 0);
+    l = buf + sizeof(buf) - p;
+    *dst++ = 0x0f;
+    *dst++ = 0x0d;
+    *dst++ = (uint8_t)l;
+    memcpy(dst, p, l);
+    dst += l;
+
+    return dst;
+}
+
+void h2o_hpack_dispose_header_table(h2o_hpack_header_table_t *header_table)
+{
+    if (header_table->num_entries != 0) {
+        size_t index = header_table->entry_start_index;
+        do {
+            struct st_h2o_hpack_header_table_entry_t *entry = header_table->entries + index;
+            if (!h2o_iovec_is_token(entry->name))
+                h2o_mem_release_shared(entry->name);
+            if (!value_is_part_of_static_table(entry->value))
+                h2o_mem_release_shared(entry->value);
+            index = (index + 1) % header_table->entry_capacity;
+        } while (--header_table->num_entries != 0);
+    }
+    free(header_table->entries);
+}
+
+int h2o_hpack_parse_headers(h2o_req_t *req, h2o_hpack_header_table_t *header_table, const uint8_t *src, size_t len,
+                            int *pseudo_header_exists_map, size_t *content_length, h2o_cache_digests_t **digests,
+                            const char **err_desc)
+{
+    const uint8_t *src_end = src + len;
+
+    *content_length = SIZE_MAX;
+
+    while (src != src_end) {
+        struct st_h2o_decode_header_result_t r;
+        const char *decode_err = NULL;
+        int ret = decode_header(&req->pool, &r, header_table, &src, src_end, &decode_err);
+        if (ret != 0) {
+            if (ret == H2O_HTTP2_ERROR_INVALID_HEADER_CHAR) {
+                /* this is a soft error, we continue parsing, but register only the first error */
+                if (*err_desc == NULL) {
+                    *err_desc = decode_err;
+                }
+            } else {
+                *err_desc = decode_err;
+                return ret;
+            }
+        }
+        if (r.name->base[0] == ':') {
+            if (pseudo_header_exists_map != NULL) {
+                /* FIXME validate the chars in the value (e.g. reject SP in path) */
+                if (r.name == &H2O_TOKEN_AUTHORITY->buf) {
+                    /* FIXME should we perform this check? */
+                    if (req->input.authority.base != NULL)
+                        return H2O_HTTP2_ERROR_PROTOCOL;
+                    req->input.authority = *r.value;
+                    *pseudo_header_exists_map |= H2O_HPACK_PARSE_HEADERS_AUTHORITY_EXISTS;
+                } else if (r.name == &H2O_TOKEN_METHOD->buf) {
+                    if (req->input.method.base != NULL)
+                        return H2O_HTTP2_ERROR_PROTOCOL;
+                    req->input.method = *r.value;
+                    *pseudo_header_exists_map |= H2O_HPACK_PARSE_HEADERS_METHOD_EXISTS;
+                } else if (r.name == &H2O_TOKEN_PATH->buf) {
+                    if (req->input.path.base != NULL)
+                        return H2O_HTTP2_ERROR_PROTOCOL;
+                    req->input.path = *r.value;
+                    *pseudo_header_exists_map |= H2O_HPACK_PARSE_HEADERS_PATH_EXISTS;
+                } else if (r.name == &H2O_TOKEN_SCHEME->buf) {
+                    if (req->input.scheme != NULL)
+                        return H2O_HTTP2_ERROR_PROTOCOL;
+                    if (h2o_memis(r.value->base, r.value->len, H2O_STRLIT("https"))) {
+                        req->input.scheme = &H2O_URL_SCHEME_HTTPS;
+                    } else {
+                        /* draft-16 8.1.2.3 suggests quote: ":scheme is not restricted to http and https schemed URIs" */
+                        req->input.scheme = &H2O_URL_SCHEME_HTTP;
+                    }
+                    *pseudo_header_exists_map |= H2O_HPACK_PARSE_HEADERS_SCHEME_EXISTS;
+                } else {
+                    return H2O_HTTP2_ERROR_PROTOCOL;
+                }
+            } else {
+                return H2O_HTTP2_ERROR_PROTOCOL;
+            }
+        } else {
+            pseudo_header_exists_map = NULL;
+            if (h2o_iovec_is_token(r.name)) {
+                h2o_token_t *token = H2O_STRUCT_FROM_MEMBER(h2o_token_t, buf, r.name);
+                if (token == H2O_TOKEN_CONTENT_LENGTH) {
+                    if ((*content_length = h2o_strtosize(r.value->base, r.value->len)) == SIZE_MAX)
+                        return H2O_HTTP2_ERROR_PROTOCOL;
+                } else {
+                    /* reject headers as defined in draft-16 8.1.2.2 */
+                    if (token->http2_should_reject) {
+                        if (token == H2O_TOKEN_HOST) {
+                            /* just skip (and :authority is used) */
+                            goto Next;
+                        } else if (token == H2O_TOKEN_TE && h2o_lcstris(r.value->base, r.value->len, H2O_STRLIT("trailers"))) {
+                            /* do not reject */
+                        } else {
+                            return H2O_HTTP2_ERROR_PROTOCOL;
+                        }
+                    }
+                    if (token == H2O_TOKEN_CACHE_DIGEST && digests != NULL) {
+                        /* TODO cache the decoded result in HPACK, as well as delay the decoding of the digest until being used */
+                        h2o_cache_digests_load_header(digests, r.value->base, r.value->len);
+                    }
+                    h2o_add_header(&req->pool, &req->headers, token, NULL, r.value->base, r.value->len);
+                }
+            } else {
+                h2o_add_header_by_str(&req->pool, &req->headers, r.name->base, r.name->len, 0, NULL, r.value->base, r.value->len);
+            }
+        }
+    Next:;
+    }
+
+    if (*err_desc) {
+        return H2O_HTTP2_ERROR_INVALID_HEADER_CHAR;
+    }
+    return 0;
+}
+
+static inline int encode_int_is_onebyte(uint32_t value, size_t prefix_bits)
+{
+    return value < (1 << prefix_bits) - 1;
+}
+
+static uint8_t *encode_int(uint8_t *dst, uint32_t value, size_t prefix_bits)
+{
+    if (encode_int_is_onebyte(value, prefix_bits)) {
+        *dst++ |= value;
+    } else {
+        /* see also: MAX_ENCODE_INT_LENGTH */
+        value -= (1 << prefix_bits) - 1;
+        if (value > 0x0fffffff)
+            h2o_fatal("value out of range");
+        *dst++ |= (1 << prefix_bits) - 1;
+        for (; value >= 128; value >>= 7) {
+            *dst++ = 0x80 | value;
+        }
+        *dst++ = value;
+    }
+    return dst;
+}
+
+static size_t encode_huffman(uint8_t *_dst, const uint8_t *src, size_t len)
+{
+    uint8_t *dst = _dst, *dst_end = dst + len;
+    const uint8_t *src_end = src + len;
+    uint64_t bits = 0;
+    int bits_left = 40;
+
+    while (src != src_end) {
+        const nghttp2_huff_sym *sym = huff_sym_table + *src++;
+        bits |= (uint64_t)sym->code << (bits_left - sym->nbits);
+        bits_left -= sym->nbits;
+        while (bits_left <= 32) {
+            *dst++ = bits >> 32;
+            bits <<= 8;
+            bits_left += 8;
+            if (dst == dst_end) {
+                return 0;
+            }
+        }
+    }
+
+    if (bits_left != 40) {
+        bits |= ((uint64_t)1 << bits_left) - 1;
+        *dst++ = bits >> 32;
+    }
+    if (dst == dst_end) {
+        return 0;
+    }
+
+    return dst - _dst;
+}
+
+static size_t encode_as_is(uint8_t *dst, const char *s, size_t len)
+{
+    uint8_t *start = dst;
+    *dst = '\0';
+    dst = encode_int(dst, (uint32_t)len, 7);
+    memcpy(dst, s, len);
+    dst += len;
+    return dst - start;
+}
+
+size_t h2o_hpack_encode_string(uint8_t *dst, const char *s, size_t len)
+{
+    if (H2O_LIKELY(len != 0)) {
+        /* try to encode using huffman */
+        size_t hufflen = encode_huffman(dst + 1, (const uint8_t *)s, len);
+        if (H2O_LIKELY(hufflen != 0)) {
+            size_t head_len;
+            if (H2O_LIKELY(encode_int_is_onebyte((uint32_t)hufflen, 7))) {
+                dst[0] = (uint8_t)(0x80 | hufflen);
+                head_len = 1;
+            } else {
+                uint8_t head[8];
+                head[0] = '\x80';
+                head_len = encode_int(head, (uint32_t)hufflen, 7) - head;
+                memmove(dst + head_len, dst + 1, hufflen);
+                memcpy(dst, head, head_len);
+            }
+            return head_len + hufflen;
+        }
+    }
+    return encode_as_is(dst, s, len);
+}
+
+static uint8_t *encode_header(h2o_hpack_header_table_t *header_table, uint8_t *dst, const h2o_iovec_t *name,
+                              const h2o_iovec_t *value)
+{
+    int name_index = 0, dont_compress = 0, name_is_token = h2o_iovec_is_token(name);
+
+    /* try to send as indexed */
+    {
+        size_t header_table_index = header_table->entry_start_index, n;
+        for (n = header_table->num_entries; n != 0; --n) {
+            struct st_h2o_hpack_header_table_entry_t *entry = header_table->entries + header_table_index;
+            if (name_is_token) {
+                if (name != entry->name)
+                    goto Next;
+            } else {
+                if (!h2o_memis(name->base, name->len, entry->name->base, entry->name->len))
+                    goto Next;
+                if (name_index == 0)
+                    name_index = (int)(header_table->num_entries - n + HEADER_TABLE_OFFSET);
+            }
+            /* name matched! */
+            if (!h2o_memis(value->base, value->len, entry->value->base, entry->value->len))
+                goto Next;
+            /* name and value matched! */
+            *dst = 0x80;
+            dst = encode_int(dst, (uint32_t)(header_table->num_entries - n + HEADER_TABLE_OFFSET), 7);
+            return dst;
+        Next:
+            ++header_table_index;
+            if (header_table_index == header_table->entry_capacity)
+                header_table_index = 0;
+        }
+    }
+
+    if (name_is_token) {
+        const h2o_token_t *name_token = H2O_STRUCT_FROM_MEMBER(h2o_token_t, buf, name);
+        name_index = name_token->http2_static_table_name_index;
+        dont_compress = (name_token->dont_compress == 1 && value->len < 20) ? 1 : 0;
+    }
+
+    if (name_index != 0) {
+        /* literal header field with indexing (indexed name). */
+        if (dont_compress == 1) {
+            /* mark the field as 'never indexed' */
+            *dst = 0x10;
+            dst = encode_int(dst, name_index, 4);
+        } else {
+            *dst = 0x40;
+            dst = encode_int(dst, name_index, 6);
+        }
+    } else {
+        /* literal header field with indexing (new name) */
+        *dst++ = 0x40;
+        dst += h2o_hpack_encode_string(dst, name->base, name->len);
+    }
+    if (dont_compress == 1) {
+        /* bypass huffman encoding */
+        dst += encode_as_is(dst, value->base, value->len);
+    } else {
+        /* add to header table (maximum number of entries in output header table is limited to 32 so that the search (see above) would
+           not take too long) */
+        dst += h2o_hpack_encode_string(dst, value->base, value->len);
+        struct st_h2o_hpack_header_table_entry_t *entry =
+            header_table_add(header_table, name->len + value->len + HEADER_TABLE_ENTRY_SIZE_OFFSET, 32);
+        if (entry != NULL) {
+            if (name_is_token) {
+                entry->name = (h2o_iovec_t *)name;
+            } else {
+                entry->name = alloc_buf(NULL, name->len);
+                entry->name->base[name->len] = '\0';
+                memcpy(entry->name->base, name->base, name->len);
+            }
+            entry->value = alloc_buf(NULL, value->len);
+            entry->value->base[value->len] = '\0';
+            memcpy(entry->value->base, value->base, value->len);
+        }
+    }
+
+    return dst;
+}
+
+static uint8_t *encode_method(h2o_hpack_header_table_t *header_table, uint8_t *dst, h2o_iovec_t value)
+{
+    if (h2o_memis(value.base, value.len, H2O_STRLIT("GET"))) {
+        *dst++ = 0x82;
+        return dst;
+    }
+    if (h2o_memis(value.base, value.len, H2O_STRLIT("POST"))) {
+        *dst++ = 0x83;
+        return dst;
+    }
+    return encode_header(header_table, dst, &H2O_TOKEN_METHOD->buf, &value);
+}
+
+static uint8_t *encode_scheme(h2o_hpack_header_table_t *header_table, uint8_t *dst, const h2o_url_scheme_t *scheme)
+{
+    if (scheme == &H2O_URL_SCHEME_HTTPS) {
+        *dst++ = 0x87;
+        return dst;
+    }
+    if (scheme == &H2O_URL_SCHEME_HTTP) {
+        *dst++ = 0x86;
+        return dst;
+    }
+    return encode_header(header_table, dst, &H2O_TOKEN_SCHEME->buf, &scheme->name);
+}
+
+static uint8_t *encode_path(h2o_hpack_header_table_t *header_table, uint8_t *dst, h2o_iovec_t value)
+{
+    if (h2o_memis(value.base, value.len, H2O_STRLIT("/"))) {
+        *dst++ = 0x84;
+        return dst;
+    }
+    if (h2o_memis(value.base, value.len, H2O_STRLIT("/index.html"))) {
+        *dst++ = 0x85;
+        return dst;
+    }
+    return encode_header(header_table, dst, &H2O_TOKEN_PATH->buf, &value);
+}
+
+static uint8_t *encode_literal_header_without_indexing(uint8_t *dst, const h2o_iovec_t *name, const h2o_iovec_t *value)
+{
+    /* literal header field without indexing / never indexed */
+    *dst++ = 0;
+    dst += h2o_hpack_encode_string(dst, name->base, name->len);
+    dst += h2o_hpack_encode_string(dst, value->base, value->len);
+    return dst;
+}
+
+static size_t calc_capacity(size_t name_len, size_t value_len)
+{
+    return name_len + value_len + 1 + H2O_HTTP2_ENCODE_INT_MAX_LENGTH * 2;
+}
+
+static size_t calc_headers_capacity(const h2o_header_t *headers, size_t num_headers)
+{
+    const h2o_header_t *header;
+    size_t capacity = 0;
+    for (header = headers; num_headers != 0; ++header, --num_headers)
+        capacity += calc_capacity(header->name->len, header->value.len);
+    return capacity;
+}
+
+static void fixup_frame_headers(h2o_buffer_t **buf, size_t start_at, uint8_t type, uint32_t stream_id, size_t max_frame_size)
+{
+    /* try to fit all data into single frame, using the preallocated space for the frame header */
+    size_t payload_size = (*buf)->size - start_at - H2O_HTTP2_FRAME_HEADER_SIZE;
+    if (payload_size <= max_frame_size) {
+        h2o_http2_encode_frame_header((uint8_t *)((*buf)->bytes + start_at), payload_size, type, H2O_HTTP2_FRAME_FLAG_END_HEADERS,
+                                      stream_id);
+        return;
+    }
+
+    /* need to setup continuation frames */
+    size_t off;
+    h2o_http2_encode_frame_header((uint8_t *)((*buf)->bytes + start_at), max_frame_size, type, 0, stream_id);
+    off = start_at + H2O_HTTP2_FRAME_HEADER_SIZE + max_frame_size;
+    while (1) {
+        size_t left = (*buf)->size - off;
+        h2o_buffer_reserve(buf, H2O_HTTP2_FRAME_HEADER_SIZE);
+        memmove((*buf)->bytes + off + H2O_HTTP2_FRAME_HEADER_SIZE, (*buf)->bytes + off, left);
+        (*buf)->size += H2O_HTTP2_FRAME_HEADER_SIZE;
+        if (left <= max_frame_size) {
+            h2o_http2_encode_frame_header((uint8_t *)((*buf)->bytes + off), left, H2O_HTTP2_FRAME_TYPE_CONTINUATION,
+                                          H2O_HTTP2_FRAME_FLAG_END_HEADERS, stream_id);
+            break;
+        } else {
+            h2o_http2_encode_frame_header((uint8_t *)((*buf)->bytes + off), max_frame_size, H2O_HTTP2_FRAME_TYPE_CONTINUATION, 0,
+                                          stream_id);
+            off += H2O_HTTP2_FRAME_HEADER_SIZE + max_frame_size;
+        }
+    }
+}
+
+void h2o_hpack_flatten_request(h2o_buffer_t **buf, h2o_hpack_header_table_t *header_table, uint32_t stream_id,
+                               size_t max_frame_size, h2o_req_t *req, uint32_t parent_stream_id)
+{
+    size_t capacity = calc_headers_capacity(req->headers.entries, req->headers.size);
+    capacity += H2O_HTTP2_FRAME_HEADER_SIZE /* first frame header */
+                + 4;                        /* promised stream id */
+    capacity += calc_capacity(H2O_TOKEN_METHOD->buf.len, req->input.method.len);
+    capacity += calc_capacity(H2O_TOKEN_SCHEME->buf.len, req->input.scheme->name.len);
+    capacity += calc_capacity(H2O_TOKEN_AUTHORITY->buf.len, req->input.authority.len);
+    capacity += calc_capacity(H2O_TOKEN_PATH->buf.len, req->input.path.len);
+
+    size_t start_at = (*buf)->size;
+    uint8_t *dst = (void *)(h2o_buffer_reserve(buf, capacity).base + H2O_HTTP2_FRAME_HEADER_SIZE);
+
+    /* encode */
+    dst = h2o_http2_encode32u(dst, stream_id);
+    dst = encode_method(header_table, dst, req->input.method);
+    dst = encode_scheme(header_table, dst, req->input.scheme);
+    dst = encode_header(header_table, dst, &H2O_TOKEN_AUTHORITY->buf, &req->input.authority);
+    dst = encode_path(header_table, dst, req->input.path);
+    size_t i;
+    for (i = 0; i != req->headers.size; ++i) {
+        const h2o_header_t *header = req->headers.entries + i;
+        if (header->name == &H2O_TOKEN_ACCEPT_ENCODING->buf &&
+            h2o_memis(header->value.base, header->value.len, H2O_STRLIT("gzip, deflate"))) {
+            *dst++ = 0x90;
+        } else {
+            dst = encode_header(header_table, dst, header->name, &header->value);
+        }
+    }
+    (*buf)->size = (char *)dst - (*buf)->bytes;
+
+    /* setup the frame headers */
+    fixup_frame_headers(buf, start_at, H2O_HTTP2_FRAME_TYPE_PUSH_PROMISE, parent_stream_id, max_frame_size);
+}
+
+void h2o_hpack_flatten_response(h2o_buffer_t **buf, h2o_hpack_header_table_t *header_table, uint32_t stream_id,
+                                size_t max_frame_size, h2o_res_t *res, h2o_timestamp_t *ts, const h2o_iovec_t *server_name,
+                                size_t content_length)
+{
+    size_t capacity = calc_headers_capacity(res->headers.entries, res->headers.size);
+    capacity += H2O_HTTP2_FRAME_HEADER_SIZE; /* for the first header */
+    capacity += STATUS_HEADER_MAX_SIZE;      /* for :status: */
+#ifndef H2O_UNITTEST
+    capacity += 2 + H2O_TIMESTR_RFC1123_LEN; /* for Date: */
+    if (server_name->len) {
+        capacity += 5 + server_name->len; /* for Server: */
+    }
+#endif
+    if (content_length != SIZE_MAX)
+        capacity += CONTENT_LENGTH_HEADER_MAX_SIZE; /* for content-length: UINT64_MAX (with huffman compression applied) */
+
+    size_t start_at = (*buf)->size;
+    uint8_t *dst = (void *)(h2o_buffer_reserve(buf, capacity).base + H2O_HTTP2_FRAME_HEADER_SIZE); /* skip frame header */
+
+    /* encode */
+    dst = encode_status(dst, res->status);
+#ifndef H2O_UNITTEST
+    /* TODO keep some kind of reference to the indexed headers of Server and Date, and reuse them */
+    if (server_name->len) {
+        dst = encode_header(header_table, dst, &H2O_TOKEN_SERVER->buf, server_name);
+    }
+    h2o_iovec_t date_value = {ts->str->rfc1123, H2O_TIMESTR_RFC1123_LEN};
+    dst = encode_header(header_table, dst, &H2O_TOKEN_DATE->buf, &date_value);
+#endif
+    size_t i;
+    for (i = 0; i != res->headers.size; ++i)
+        dst = encode_header(header_table, dst, res->headers.entries[i].name, &res->headers.entries[i].value);
+    if (content_length != SIZE_MAX)
+        dst = encode_content_length(dst, content_length);
+    (*buf)->size = (char *)dst - (*buf)->bytes;
+
+    /* setup the frame headers */
+    fixup_frame_headers(buf, start_at, H2O_HTTP2_FRAME_TYPE_HEADERS, stream_id, max_frame_size);
+}
diff --git a/debian/vendor-h2o/lib/http2/hpack_huffman_table.h b/debian/vendor-h2o/lib/http2/hpack_huffman_table.h
new file mode 100644
index 0000000..8f6afab
--- /dev/null
+++ b/debian/vendor-h2o/lib/http2/hpack_huffman_table.h
@@ -0,0 +1,4954 @@
+// !!! DO NOT EDIT !!! Generated by misc/mkhufftbl.c
+/*
+ * The MIT License
+ *
+ * Copyright (c) 2012, 2014, 2015, 2016 Tatsuhiro Tsujikawa
+ * Copyright (c) 2012, 2014, 2015, 2016 nghttp2 contributors
+ * Copyright (c) 2016 Fastly, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+typedef struct {
+    uint32_t nbits;
+    uint32_t code;
+} nghttp2_huff_sym;
+
+static const nghttp2_huff_sym huff_sym_table[] = {
+    {13, 0x1ff8u},    {23, 0x7fffd8u},   {28, 0xfffffe2u}, {28, 0xfffffe3u},  {28, 0xfffffe4u}, {28, 0xfffffe5u}, {28, 0xfffffe6u},
+    {28, 0xfffffe7u}, {28, 0xfffffe8u},  {24, 0xffffeau},  {30, 0x3ffffffcu}, {28, 0xfffffe9u}, {28, 0xfffffeau}, {30, 0x3ffffffdu},
+    {28, 0xfffffebu}, {28, 0xfffffecu},  {28, 0xfffffedu}, {28, 0xfffffeeu},  {28, 0xfffffefu}, {28, 0xffffff0u}, {28, 0xffffff1u},
+    {28, 0xffffff2u}, {30, 0x3ffffffeu}, {28, 0xffffff3u}, {28, 0xffffff4u},  {28, 0xffffff5u}, {28, 0xffffff6u}, {28, 0xffffff7u},
+    {28, 0xffffff8u}, {28, 0xffffff9u},  {28, 0xffffffau}, {28, 0xffffffbu},  {6, 0x14u},       {10, 0x3f8u},     {10, 0x3f9u},
+    {12, 0xffau},     {13, 0x1ff9u},     {6, 0x15u},       {8, 0xf8u},        {11, 0x7fau},     {10, 0x3fau},     {10, 0x3fbu},
+    {8, 0xf9u},       {11, 0x7fbu},      {8, 0xfau},       {6, 0x16u},        {6, 0x17u},       {6, 0x18u},       {5, 0x0u},
+    {5, 0x1u},        {5, 0x2u},         {6, 0x19u},       {6, 0x1au},        {6, 0x1bu},       {6, 0x1cu},       {6, 0x1du},
+    {6, 0x1eu},       {6, 0x1fu},        {7, 0x5cu},       {8, 0xfbu},        {15, 0x7ffcu},    {6, 0x20u},       {12, 0xffbu},
+    {10, 0x3fcu},     {13, 0x1ffau},     {6, 0x21u},       {7, 0x5du},        {7, 0x5eu},       {7, 0x5fu},       {7, 0x60u},
+    {7, 0x61u},       {7, 0x62u},        {7, 0x63u},       {7, 0x64u},        {7, 0x65u},       {7, 0x66u},       {7, 0x67u},
+    {7, 0x68u},       {7, 0x69u},        {7, 0x6au},       {7, 0x6bu},        {7, 0x6cu},       {7, 0x6du},       {7, 0x6eu},
+    {7, 0x6fu},       {7, 0x70u},        {7, 0x71u},       {7, 0x72u},        {8, 0xfcu},       {7, 0x73u},       {8, 0xfdu},
+    {13, 0x1ffbu},    {19, 0x7fff0u},    {13, 0x1ffcu},    {14, 0x3ffcu},     {6, 0x22u},       {15, 0x7ffdu},    {5, 0x3u},
+    {6, 0x23u},       {5, 0x4u},         {6, 0x24u},       {5, 0x5u},         {6, 0x25u},       {6, 0x26u},       {6, 0x27u},
+    {5, 0x6u},        {7, 0x74u},        {7, 0x75u},       {6, 0x28u},        {6, 0x29u},       {6, 0x2au},       {5, 0x7u},
+    {6, 0x2bu},       {7, 0x76u},        {6, 0x2cu},       {5, 0x8u},         {5, 0x9u},        {6, 0x2du},       {7, 0x77u},
+    {7, 0x78u},       {7, 0x79u},        {7, 0x7au},       {7, 0x7bu},        {15, 0x7ffeu},    {11, 0x7fcu},     {14, 0x3ffdu},
+    {13, 0x1ffdu},    {28, 0xffffffcu},  {20, 0xfffe6u},   {22, 0x3fffd2u},   {20, 0xfffe7u},   {20, 0xfffe8u},   {22, 0x3fffd3u},
+    {22, 0x3fffd4u},  {22, 0x3fffd5u},   {23, 0x7fffd9u},  {22, 0x3fffd6u},   {23, 0x7fffdau},  {23, 0x7fffdbu},  {23, 0x7fffdcu},
+    {23, 0x7fffddu},  {23, 0x7fffdeu},   {24, 0xffffebu},  {23, 0x7fffdfu},   {24, 0xffffecu},  {24, 0xffffedu},  {22, 0x3fffd7u},
+    {23, 0x7fffe0u},  {24, 0xffffeeu},   {23, 0x7fffe1u},  {23, 0x7fffe2u},   {23, 0x7fffe3u},  {23, 0x7fffe4u},  {21, 0x1fffdcu},
+    {22, 0x3fffd8u},  {23, 0x7fffe5u},   {22, 0x3fffd9u},  {23, 0x7fffe6u},   {23, 0x7fffe7u},  {24, 0xffffefu},  {22, 0x3fffdau},
+    {21, 0x1fffddu},  {20, 0xfffe9u},    {22, 0x3fffdbu},  {22, 0x3fffdcu},   {23, 0x7fffe8u},  {23, 0x7fffe9u},  {21, 0x1fffdeu},
+    {23, 0x7fffeau},  {22, 0x3fffddu},   {22, 0x3fffdeu},  {24, 0xfffff0u},   {21, 0x1fffdfu},  {22, 0x3fffdfu},  {23, 0x7fffebu},
+    {23, 0x7fffecu},  {21, 0x1fffe0u},   {21, 0x1fffe1u},  {22, 0x3fffe0u},   {21, 0x1fffe2u},  {23, 0x7fffedu},  {22, 0x3fffe1u},
+    {23, 0x7fffeeu},  {23, 0x7fffefu},   {20, 0xfffeau},   {22, 0x3fffe2u},   {22, 0x3fffe3u},  {22, 0x3fffe4u},  {23, 0x7ffff0u},
+    {22, 0x3fffe5u},  {22, 0x3fffe6u},   {23, 0x7ffff1u},  {26, 0x3ffffe0u},  {26, 0x3ffffe1u}, {20, 0xfffebu},   {19, 0x7fff1u},
+    {22, 0x3fffe7u},  {23, 0x7ffff2u},   {22, 0x3fffe8u},  {25, 0x1ffffecu},  {26, 0x3ffffe2u}, {26, 0x3ffffe3u}, {26, 0x3ffffe4u},
+    {27, 0x7ffffdeu}, {27, 0x7ffffdfu},  {26, 0x3ffffe5u}, {24, 0xfffff1u},   {25, 0x1ffffedu}, {19, 0x7fff2u},   {21, 0x1fffe3u},
+    {26, 0x3ffffe6u}, {27, 0x7ffffe0u},  {27, 0x7ffffe1u}, {26, 0x3ffffe7u},  {27, 0x7ffffe2u}, {24, 0xfffff2u},  {21, 0x1fffe4u},
+    {21, 0x1fffe5u},  {26, 0x3ffffe8u},  {26, 0x3ffffe9u}, {28, 0xffffffdu},  {27, 0x7ffffe3u}, {27, 0x7ffffe4u}, {27, 0x7ffffe5u},
+    {20, 0xfffecu},   {24, 0xfffff3u},   {20, 0xfffedu},   {21, 0x1fffe6u},   {22, 0x3fffe9u},  {21, 0x1fffe7u},  {21, 0x1fffe8u},
+    {23, 0x7ffff3u},  {22, 0x3fffeau},   {22, 0x3fffebu},  {25, 0x1ffffeeu},  {25, 0x1ffffefu}, {24, 0xfffff4u},  {24, 0xfffff5u},
+    {26, 0x3ffffeau}, {23, 0x7ffff4u},   {26, 0x3ffffebu}, {27, 0x7ffffe6u},  {26, 0x3ffffecu}, {26, 0x3ffffedu}, {27, 0x7ffffe7u},
+    {27, 0x7ffffe8u}, {27, 0x7ffffe9u},  {27, 0x7ffffeau}, {27, 0x7ffffebu},  {28, 0xffffffeu}, {27, 0x7ffffecu}, {27, 0x7ffffedu},
+    {27, 0x7ffffeeu}, {27, 0x7ffffefu},  {27, 0x7fffff0u}, {26, 0x3ffffeeu},  {30, 0x3fffffffu}};
+
+typedef enum {
+    NGHTTP2_HUFF_ACCEPTED = 1,
+    NGHTTP2_HUFF_SYM = 2,
+    NGHTTP2_HUFF_FAIL = 4,
+    NGHTTP2_HUFF_INVALID_FOR_HEADER_NAME = 8,
+    NGHTTP2_HUFF_INVALID_FOR_HEADER_VALUE = 16,
+    NGHTTP2_HUFF_UPPER_CASE_CHAR = 32,
+#define NGHTTP2_HUFF_INVALID_CHARS (NGHTTP2_HUFF_INVALID_FOR_HEADER_NAME | NGHTTP2_HUFF_INVALID_FOR_HEADER_VALUE)
+} nghttp2_huff_decode_flag;
+
+typedef struct {
+    uint8_t state;
+    uint8_t flags;
+    uint8_t sym;
+} nghttp2_huff_decode;
+
+static const nghttp2_huff_decode huff_decode_table[][16] = {
+    /* 0 */
+    {
+        {4, 0x00, 0},
+        {5, 0x00, 0},
+        {7, 0x00, 0},
+        {8, 0x00, 0},
+        {11, 0x00, 0},
+        {12, 0x00, 0},
+        {16, 0x00, 0},
+        {19, 0x00, 0},
+        {25, 0x00, 0},
+        {28, 0x00, 0},
+        {32, 0x00, 0},
+        {35, 0x00, 0},
+        {42, 0x00, 0},
+        {49, 0x00, 0},
+        {57, 0x00, 0},
+        {64, 0x01, 0},
+    },
+    /* 1 */
+    {
+        {0, 0x03, 48},
+        {0, 0x03, 49},
+        {0, 0x03, 50},
+        {0, 0x03, 97},
+        {0, 0x03, 99},
+        {0, 0x03, 101},
+        {0, 0x03, 105},
+        {0, 0x03, 111},
+        {0, 0x03, 115},
+        {0, 0x03, 116},
+        {13, 0x00, 0},
+        {14, 0x00, 0},
+        {17, 0x00, 0},
+        {18, 0x00, 0},
+        {20, 0x00, 0},
+        {21, 0x00, 0},
+    },
+    /* 2 */
+    {
+        {1, 0x02, 48},
+        {22, 0x03, 48},
+        {1, 0x02, 49},
+        {22, 0x03, 49},
+        {1, 0x02, 50},
+        {22, 0x03, 50},
+        {1, 0x02, 97},
+        {22, 0x03, 97},
+        {1, 0x02, 99},
+        {22, 0x03, 99},
+        {1, 0x02, 101},
+        {22, 0x03, 101},
+        {1, 0x02, 105},
+        {22, 0x03, 105},
+        {1, 0x02, 111},
+        {22, 0x03, 111},
+    },
+    /* 3 */
+    {
+        {2, 0x02, 48},
+        {9, 0x02, 48},
+        {23, 0x02, 48},
+        {40, 0x03, 48},
+        {2, 0x02, 49},
+        {9, 0x02, 49},
+        {23, 0x02, 49},
+        {40, 0x03, 49},
+        {2, 0x02, 50},
+        {9, 0x02, 50},
+        {23, 0x02, 50},
+        {40, 0x03, 50},
+        {2, 0x02, 97},
+        {9, 0x02, 97},
+        {23, 0x02, 97},
+        {40, 0x03, 97},
+    },
+    /* 4 */
+    {
+        {3, 0x02, 48},
+        {6, 0x02, 48},
+        {10, 0x02, 48},
+        {15, 0x02, 48},
+        {24, 0x02, 48},
+        {31, 0x02, 48},
+        {41, 0x02, 48},
+        {56, 0x03, 48},
+        {3, 0x02, 49},
+        {6, 0x02, 49},
+        {10, 0x02, 49},
+        {15, 0x02, 49},
+        {24, 0x02, 49},
+        {31, 0x02, 49},
+        {41, 0x02, 49},
+        {56, 0x03, 49},
+    },
+    /* 5 */
+    {
+        {3, 0x02, 50},
+        {6, 0x02, 50},
+        {10, 0x02, 50},
+        {15, 0x02, 50},
+        {24, 0x02, 50},
+        {31, 0x02, 50},
+        {41, 0x02, 50},
+        {56, 0x03, 50},
+        {3, 0x02, 97},
+        {6, 0x02, 97},
+        {10, 0x02, 97},
+        {15, 0x02, 97},
+        {24, 0x02, 97},
+        {31, 0x02, 97},
+        {41, 0x02, 97},
+        {56, 0x03, 97},
+    },
+    /* 6 */
+    {
+        {2, 0x02, 99},
+        {9, 0x02, 99},
+        {23, 0x02, 99},
+        {40, 0x03, 99},
+        {2, 0x02, 101},
+        {9, 0x02, 101},
+        {23, 0x02, 101},
+        {40, 0x03, 101},
+        {2, 0x02, 105},
+        {9, 0x02, 105},
+        {23, 0x02, 105},
+        {40, 0x03, 105},
+        {2, 0x02, 111},
+        {9, 0x02, 111},
+        {23, 0x02, 111},
+        {40, 0x03, 111},
+    },
+    /* 7 */
+    {
+        {3, 0x02, 99},
+        {6, 0x02, 99},
+        {10, 0x02, 99},
+        {15, 0x02, 99},
+        {24, 0x02, 99},
+        {31, 0x02, 99},
+        {41, 0x02, 99},
+        {56, 0x03, 99},
+        {3, 0x02, 101},
+        {6, 0x02, 101},
+        {10, 0x02, 101},
+        {15, 0x02, 101},
+        {24, 0x02, 101},
+        {31, 0x02, 101},
+        {41, 0x02, 101},
+        {56, 0x03, 101},
+    },
+    /* 8 */
+    {
+        {3, 0x02, 105},
+        {6, 0x02, 105},
+        {10, 0x02, 105},
+        {15, 0x02, 105},
+        {24, 0x02, 105},
+        {31, 0x02, 105},
+        {41, 0x02, 105},
+        {56, 0x03, 105},
+        {3, 0x02, 111},
+        {6, 0x02, 111},
+        {10, 0x02, 111},
+        {15, 0x02, 111},
+        {24, 0x02, 111},
+        {31, 0x02, 111},
+        {41, 0x02, 111},
+        {56, 0x03, 111},
+    },
+    /* 9 */
+    {
+        {1, 0x02, 115},
+        {22, 0x03, 115},
+        {1, 0x02, 116},
+        {22, 0x03, 116},
+        {0, 0x0b, 32},
+        {0, 0x03, 37},
+        {0, 0x03, 45},
+        {0, 0x03, 46},
+        {0, 0x0b, 47},
+        {0, 0x03, 51},
+        {0, 0x03, 52},
+        {0, 0x03, 53},
+        {0, 0x03, 54},
+        {0, 0x03, 55},
+        {0, 0x03, 56},
+        {0, 0x03, 57},
+    },
+    /* 10 */
+    {
+        {2, 0x02, 115},
+        {9, 0x02, 115},
+        {23, 0x02, 115},
+        {40, 0x03, 115},
+        {2, 0x02, 116},
+        {9, 0x02, 116},
+        {23, 0x02, 116},
+        {40, 0x03, 116},
+        {1, 0x0a, 32},
+        {22, 0x0b, 32},
+        {1, 0x02, 37},
+        {22, 0x03, 37},
+        {1, 0x02, 45},
+        {22, 0x03, 45},
+        {1, 0x02, 46},
+        {22, 0x03, 46},
+    },
+    /* 11 */
+    {
+        {3, 0x02, 115},
+        {6, 0x02, 115},
+        {10, 0x02, 115},
+        {15, 0x02, 115},
+        {24, 0x02, 115},
+        {31, 0x02, 115},
+        {41, 0x02, 115},
+        {56, 0x03, 115},
+        {3, 0x02, 116},
+        {6, 0x02, 116},
+        {10, 0x02, 116},
+        {15, 0x02, 116},
+        {24, 0x02, 116},
+        {31, 0x02, 116},
+        {41, 0x02, 116},
+        {56, 0x03, 116},
+    },
+    /* 12 */
+    {
+        {2, 0x0a, 32},
+        {9, 0x0a, 32},
+        {23, 0x0a, 32},
+        {40, 0x0b, 32},
+        {2, 0x02, 37},
+        {9, 0x02, 37},
+        {23, 0x02, 37},
+        {40, 0x03, 37},
+        {2, 0x02, 45},
+        {9, 0x02, 45},
+        {23, 0x02, 45},
+        {40, 0x03, 45},
+        {2, 0x02, 46},
+        {9, 0x02, 46},
+        {23, 0x02, 46},
+        {40, 0x03, 46},
+    },
+    /* 13 */
+    {
+        {3, 0x0a, 32},
+        {6, 0x0a, 32},
+        {10, 0x0a, 32},
+        {15, 0x0a, 32},
+        {24, 0x0a, 32},
+        {31, 0x0a, 32},
+        {41, 0x0a, 32},
+        {56, 0x0b, 32},
+        {3, 0x02, 37},
+        {6, 0x02, 37},
+        {10, 0x02, 37},
+        {15, 0x02, 37},
+        {24, 0x02, 37},
+        {31, 0x02, 37},
+        {41, 0x02, 37},
+        {56, 0x03, 37},
+    },
+    /* 14 */
+    {
+        {3, 0x02, 45},
+        {6, 0x02, 45},
+        {10, 0x02, 45},
+        {15, 0x02, 45},
+        {24, 0x02, 45},
+        {31, 0x02, 45},
+        {41, 0x02, 45},
+        {56, 0x03, 45},
+        {3, 0x02, 46},
+        {6, 0x02, 46},
+        {10, 0x02, 46},
+        {15, 0x02, 46},
+        {24, 0x02, 46},
+        {31, 0x02, 46},
+        {41, 0x02, 46},
+        {56, 0x03, 46},
+    },
+    /* 15 */
+    {
+        {1, 0x0a, 47},
+        {22, 0x0b, 47},
+        {1, 0x02, 51},
+        {22, 0x03, 51},
+        {1, 0x02, 52},
+        {22, 0x03, 52},
+        {1, 0x02, 53},
+        {22, 0x03, 53},
+        {1, 0x02, 54},
+        {22, 0x03, 54},
+        {1, 0x02, 55},
+        {22, 0x03, 55},
+        {1, 0x02, 56},
+        {22, 0x03, 56},
+        {1, 0x02, 57},
+        {22, 0x03, 57},
+    },
+    /* 16 */
+    {
+        {2, 0x0a, 47},
+        {9, 0x0a, 47},
+        {23, 0x0a, 47},
+        {40, 0x0b, 47},
+        {2, 0x02, 51},
+        {9, 0x02, 51},
+        {23, 0x02, 51},
+        {40, 0x03, 51},
+        {2, 0x02, 52},
+        {9, 0x02, 52},
+        {23, 0x02, 52},
+        {40, 0x03, 52},
+        {2, 0x02, 53},
+        {9, 0x02, 53},
+        {23, 0x02, 53},
+        {40, 0x03, 53},
+    },
+    /* 17 */
+    {
+        {3, 0x0a, 47},
+        {6, 0x0a, 47},
+        {10, 0x0a, 47},
+        {15, 0x0a, 47},
+        {24, 0x0a, 47},
+        {31, 0x0a, 47},
+        {41, 0x0a, 47},
+        {56, 0x0b, 47},
+        {3, 0x02, 51},
+        {6, 0x02, 51},
+        {10, 0x02, 51},
+        {15, 0x02, 51},
+        {24, 0x02, 51},
+        {31, 0x02, 51},
+        {41, 0x02, 51},
+        {56, 0x03, 51},
+    },
+    /* 18 */
+    {
+        {3, 0x02, 52},
+        {6, 0x02, 52},
+        {10, 0x02, 52},
+        {15, 0x02, 52},
+        {24, 0x02, 52},
+        {31, 0x02, 52},
+        {41, 0x02, 52},
+        {56, 0x03, 52},
+        {3, 0x02, 53},
+        {6, 0x02, 53},
+        {10, 0x02, 53},
+        {15, 0x02, 53},
+        {24, 0x02, 53},
+        {31, 0x02, 53},
+        {41, 0x02, 53},
+        {56, 0x03, 53},
+    },
+    /* 19 */
+    {
+        {2, 0x02, 54},
+        {9, 0x02, 54},
+        {23, 0x02, 54},
+        {40, 0x03, 54},
+        {2, 0x02, 55},
+        {9, 0x02, 55},
+        {23, 0x02, 55},
+        {40, 0x03, 55},
+        {2, 0x02, 56},
+        {9, 0x02, 56},
+        {23, 0x02, 56},
+        {40, 0x03, 56},
+        {2, 0x02, 57},
+        {9, 0x02, 57},
+        {23, 0x02, 57},
+        {40, 0x03, 57},
+    },
+    /* 20 */
+    {
+        {3, 0x02, 54},
+        {6, 0x02, 54},
+        {10, 0x02, 54},
+        {15, 0x02, 54},
+        {24, 0x02, 54},
+        {31, 0x02, 54},
+        {41, 0x02, 54},
+        {56, 0x03, 54},
+        {3, 0x02, 55},
+        {6, 0x02, 55},
+        {10, 0x02, 55},
+        {15, 0x02, 55},
+        {24, 0x02, 55},
+        {31, 0x02, 55},
+        {41, 0x02, 55},
+        {56, 0x03, 55},
+    },
+    /* 21 */
+    {
+        {3, 0x02, 56},
+        {6, 0x02, 56},
+        {10, 0x02, 56},
+        {15, 0x02, 56},
+        {24, 0x02, 56},
+        {31, 0x02, 56},
+        {41, 0x02, 56},
+        {56, 0x03, 56},
+        {3, 0x02, 57},
+        {6, 0x02, 57},
+        {10, 0x02, 57},
+        {15, 0x02, 57},
+        {24, 0x02, 57},
+        {31, 0x02, 57},
+        {41, 0x02, 57},
+        {56, 0x03, 57},
+    },
+    /* 22 */
+    {
+        {26, 0x00, 0},
+        {27, 0x00, 0},
+        {29, 0x00, 0},
+        {30, 0x00, 0},
+        {33, 0x00, 0},
+        {34, 0x00, 0},
+        {36, 0x00, 0},
+        {37, 0x00, 0},
+        {43, 0x00, 0},
+        {46, 0x00, 0},
+        {50, 0x00, 0},
+        {53, 0x00, 0},
+        {58, 0x00, 0},
+        {61, 0x00, 0},
+        {65, 0x00, 0},
+        {68, 0x01, 0},
+    },
+    /* 23 */
+    {
+        {0, 0x0b, 61},
+        {0, 0x2b, 65},
+        {0, 0x03, 95},
+        {0, 0x03, 98},
+        {0, 0x03, 100},
+        {0, 0x03, 102},
+        {0, 0x03, 103},
+        {0, 0x03, 104},
+        {0, 0x03, 108},
+        {0, 0x03, 109},
+        {0, 0x03, 110},
+        {0, 0x03, 112},
+        {0, 0x03, 114},
+        {0, 0x03, 117},
+        {38, 0x00, 0},
+        {39, 0x00, 0},
+    },
+    /* 24 */
+    {
+        {1, 0x0a, 61},
+        {22, 0x0b, 61},
+        {1, 0x2a, 65},
+        {22, 0x2b, 65},
+        {1, 0x02, 95},
+        {22, 0x03, 95},
+        {1, 0x02, 98},
+        {22, 0x03, 98},
+        {1, 0x02, 100},
+        {22, 0x03, 100},
+        {1, 0x02, 102},
+        {22, 0x03, 102},
+        {1, 0x02, 103},
+        {22, 0x03, 103},
+        {1, 0x02, 104},
+        {22, 0x03, 104},
+    },
+    /* 25 */
+    {
+        {2, 0x0a, 61},
+        {9, 0x0a, 61},
+        {23, 0x0a, 61},
+        {40, 0x0b, 61},
+        {2, 0x2a, 65},
+        {9, 0x2a, 65},
+        {23, 0x2a, 65},
+        {40, 0x2b, 65},
+        {2, 0x02, 95},
+        {9, 0x02, 95},
+        {23, 0x02, 95},
+        {40, 0x03, 95},
+        {2, 0x02, 98},
+        {9, 0x02, 98},
+        {23, 0x02, 98},
+        {40, 0x03, 98},
+    },
+    /* 26 */
+    {
+        {3, 0x0a, 61},
+        {6, 0x0a, 61},
+        {10, 0x0a, 61},
+        {15, 0x0a, 61},
+        {24, 0x0a, 61},
+        {31, 0x0a, 61},
+        {41, 0x0a, 61},
+        {56, 0x0b, 61},
+        {3, 0x2a, 65},
+        {6, 0x2a, 65},
+        {10, 0x2a, 65},
+        {15, 0x2a, 65},
+        {24, 0x2a, 65},
+        {31, 0x2a, 65},
+        {41, 0x2a, 65},
+        {56, 0x2b, 65},
+    },
+    /* 27 */
+    {
+        {3, 0x02, 95},
+        {6, 0x02, 95},
+        {10, 0x02, 95},
+        {15, 0x02, 95},
+        {24, 0x02, 95},
+        {31, 0x02, 95},
+        {41, 0x02, 95},
+        {56, 0x03, 95},
+        {3, 0x02, 98},
+        {6, 0x02, 98},
+        {10, 0x02, 98},
+        {15, 0x02, 98},
+        {24, 0x02, 98},
+        {31, 0x02, 98},
+        {41, 0x02, 98},
+        {56, 0x03, 98},
+    },
+    /* 28 */
+    {
+        {2, 0x02, 100},
+        {9, 0x02, 100},
+        {23, 0x02, 100},
+        {40, 0x03, 100},
+        {2, 0x02, 102},
+        {9, 0x02, 102},
+        {23, 0x02, 102},
+        {40, 0x03, 102},
+        {2, 0x02, 103},
+        {9, 0x02, 103},
+        {23, 0x02, 103},
+        {40, 0x03, 103},
+        {2, 0x02, 104},
+        {9, 0x02, 104},
+        {23, 0x02, 104},
+        {40, 0x03, 104},
+    },
+    /* 29 */
+    {
+        {3, 0x02, 100},
+        {6, 0x02, 100},
+        {10, 0x02, 100},
+        {15, 0x02, 100},
+        {24, 0x02, 100},
+        {31, 0x02, 100},
+        {41, 0x02, 100},
+        {56, 0x03, 100},
+        {3, 0x02, 102},
+        {6, 0x02, 102},
+        {10, 0x02, 102},
+        {15, 0x02, 102},
+        {24, 0x02, 102},
+        {31, 0x02, 102},
+        {41, 0x02, 102},
+        {56, 0x03, 102},
+    },
+    /* 30 */
+    {
+        {3, 0x02, 103},
+        {6, 0x02, 103},
+        {10, 0x02, 103},
+        {15, 0x02, 103},
+        {24, 0x02, 103},
+        {31, 0x02, 103},
+        {41, 0x02, 103},
+        {56, 0x03, 103},
+        {3, 0x02, 104},
+        {6, 0x02, 104},
+        {10, 0x02, 104},
+        {15, 0x02, 104},
+        {24, 0x02, 104},
+        {31, 0x02, 104},
+        {41, 0x02, 104},
+        {56, 0x03, 104},
+    },
+    /* 31 */
+    {
+        {1, 0x02, 108},
+        {22, 0x03, 108},
+        {1, 0x02, 109},
+        {22, 0x03, 109},
+        {1, 0x02, 110},
+        {22, 0x03, 110},
+        {1, 0x02, 112},
+        {22, 0x03, 112},
+        {1, 0x02, 114},
+        {22, 0x03, 114},
+        {1, 0x02, 117},
+        {22, 0x03, 117},
+        {0, 0x0b, 58},
+        {0, 0x2b, 66},
+        {0, 0x2b, 67},
+        {0, 0x2b, 68},
+    },
+    /* 32 */
+    {
+        {2, 0x02, 108},
+        {9, 0x02, 108},
+        {23, 0x02, 108},
+        {40, 0x03, 108},
+        {2, 0x02, 109},
+        {9, 0x02, 109},
+        {23, 0x02, 109},
+        {40, 0x03, 109},
+        {2, 0x02, 110},
+        {9, 0x02, 110},
+        {23, 0x02, 110},
+        {40, 0x03, 110},
+        {2, 0x02, 112},
+        {9, 0x02, 112},
+        {23, 0x02, 112},
+        {40, 0x03, 112},
+    },
+    /* 33 */
+    {
+        {3, 0x02, 108},
+        {6, 0x02, 108},
+        {10, 0x02, 108},
+        {15, 0x02, 108},
+        {24, 0x02, 108},
+        {31, 0x02, 108},
+        {41, 0x02, 108},
+        {56, 0x03, 108},
+        {3, 0x02, 109},
+        {6, 0x02, 109},
+        {10, 0x02, 109},
+        {15, 0x02, 109},
+        {24, 0x02, 109},
+        {31, 0x02, 109},
+        {41, 0x02, 109},
+        {56, 0x03, 109},
+    },
+    /* 34 */
+    {
+        {3, 0x02, 110},
+        {6, 0x02, 110},
+        {10, 0x02, 110},
+        {15, 0x02, 110},
+        {24, 0x02, 110},
+        {31, 0x02, 110},
+        {41, 0x02, 110},
+        {56, 0x03, 110},
+        {3, 0x02, 112},
+        {6, 0x02, 112},
+        {10, 0x02, 112},
+        {15, 0x02, 112},
+        {24, 0x02, 112},
+        {31, 0x02, 112},
+        {41, 0x02, 112},
+        {56, 0x03, 112},
+    },
+    /* 35 */
+    {
+        {2, 0x02, 114},
+        {9, 0x02, 114},
+        {23, 0x02, 114},
+        {40, 0x03, 114},
+        {2, 0x02, 117},
+        {9, 0x02, 117},
+        {23, 0x02, 117},
+        {40, 0x03, 117},
+        {1, 0x0a, 58},
+        {22, 0x0b, 58},
+        {1, 0x2a, 66},
+        {22, 0x2b, 66},
+        {1, 0x2a, 67},
+        {22, 0x2b, 67},
+        {1, 0x2a, 68},
+        {22, 0x2b, 68},
+    },
+    /* 36 */
+    {
+        {3, 0x02, 114},
+        {6, 0x02, 114},
+        {10, 0x02, 114},
+        {15, 0x02, 114},
+        {24, 0x02, 114},
+        {31, 0x02, 114},
+        {41, 0x02, 114},
+        {56, 0x03, 114},
+        {3, 0x02, 117},
+        {6, 0x02, 117},
+        {10, 0x02, 117},
+        {15, 0x02, 117},
+        {24, 0x02, 117},
+        {31, 0x02, 117},
+        {41, 0x02, 117},
+        {56, 0x03, 117},
+    },
+    /* 37 */
+    {
+        {2, 0x0a, 58},
+        {9, 0x0a, 58},
+        {23, 0x0a, 58},
+        {40, 0x0b, 58},
+        {2, 0x2a, 66},
+        {9, 0x2a, 66},
+        {23, 0x2a, 66},
+        {40, 0x2b, 66},
+        {2, 0x2a, 67},
+        {9, 0x2a, 67},
+        {23, 0x2a, 67},
+        {40, 0x2b, 67},
+        {2, 0x2a, 68},
+        {9, 0x2a, 68},
+        {23, 0x2a, 68},
+        {40, 0x2b, 68},
+    },
+    /* 38 */
+    {
+        {3, 0x0a, 58},
+        {6, 0x0a, 58},
+        {10, 0x0a, 58},
+        {15, 0x0a, 58},
+        {24, 0x0a, 58},
+        {31, 0x0a, 58},
+        {41, 0x0a, 58},
+        {56, 0x0b, 58},
+        {3, 0x2a, 66},
+        {6, 0x2a, 66},
+        {10, 0x2a, 66},
+        {15, 0x2a, 66},
+        {24, 0x2a, 66},
+        {31, 0x2a, 66},
+        {41, 0x2a, 66},
+        {56, 0x2b, 66},
+    },
+    /* 39 */
+    {
+        {3, 0x2a, 67},
+        {6, 0x2a, 67},
+        {10, 0x2a, 67},
+        {15, 0x2a, 67},
+        {24, 0x2a, 67},
+        {31, 0x2a, 67},
+        {41, 0x2a, 67},
+        {56, 0x2b, 67},
+        {3, 0x2a, 68},
+        {6, 0x2a, 68},
+        {10, 0x2a, 68},
+        {15, 0x2a, 68},
+        {24, 0x2a, 68},
+        {31, 0x2a, 68},
+        {41, 0x2a, 68},
+        {56, 0x2b, 68},
+    },
+    /* 40 */
+    {
+        {44, 0x00, 0},
+        {45, 0x00, 0},
+        {47, 0x00, 0},
+        {48, 0x00, 0},
+        {51, 0x00, 0},
+        {52, 0x00, 0},
+        {54, 0x00, 0},
+        {55, 0x00, 0},
+        {59, 0x00, 0},
+        {60, 0x00, 0},
+        {62, 0x00, 0},
+        {63, 0x00, 0},
+        {66, 0x00, 0},
+        {67, 0x00, 0},
+        {69, 0x00, 0},
+        {72, 0x01, 0},
+    },
+    /* 41 */
+    {
+        {0, 0x2b, 69},
+        {0, 0x2b, 70},
+        {0, 0x2b, 71},
+        {0, 0x2b, 72},
+        {0, 0x2b, 73},
+        {0, 0x2b, 74},
+        {0, 0x2b, 75},
+        {0, 0x2b, 76},
+        {0, 0x2b, 77},
+        {0, 0x2b, 78},
+        {0, 0x2b, 79},
+        {0, 0x2b, 80},
+        {0, 0x2b, 81},
+        {0, 0x2b, 82},
+        {0, 0x2b, 83},
+        {0, 0x2b, 84},
+    },
+    /* 42 */
+    {
+        {1, 0x2a, 69},
+        {22, 0x2b, 69},
+        {1, 0x2a, 70},
+        {22, 0x2b, 70},
+        {1, 0x2a, 71},
+        {22, 0x2b, 71},
+        {1, 0x2a, 72},
+        {22, 0x2b, 72},
+        {1, 0x2a, 73},
+        {22, 0x2b, 73},
+        {1, 0x2a, 74},
+        {22, 0x2b, 74},
+        {1, 0x2a, 75},
+        {22, 0x2b, 75},
+        {1, 0x2a, 76},
+        {22, 0x2b, 76},
+    },
+    /* 43 */
+    {
+        {2, 0x2a, 69},
+        {9, 0x2a, 69},
+        {23, 0x2a, 69},
+        {40, 0x2b, 69},
+        {2, 0x2a, 70},
+        {9, 0x2a, 70},
+        {23, 0x2a, 70},
+        {40, 0x2b, 70},
+        {2, 0x2a, 71},
+        {9, 0x2a, 71},
+        {23, 0x2a, 71},
+        {40, 0x2b, 71},
+        {2, 0x2a, 72},
+        {9, 0x2a, 72},
+        {23, 0x2a, 72},
+        {40, 0x2b, 72},
+    },
+    /* 44 */
+    {
+        {3, 0x2a, 69},
+        {6, 0x2a, 69},
+        {10, 0x2a, 69},
+        {15, 0x2a, 69},
+        {24, 0x2a, 69},
+        {31, 0x2a, 69},
+        {41, 0x2a, 69},
+        {56, 0x2b, 69},
+        {3, 0x2a, 70},
+        {6, 0x2a, 70},
+        {10, 0x2a, 70},
+        {15, 0x2a, 70},
+        {24, 0x2a, 70},
+        {31, 0x2a, 70},
+        {41, 0x2a, 70},
+        {56, 0x2b, 70},
+    },
+    /* 45 */
+    {
+        {3, 0x2a, 71},
+        {6, 0x2a, 71},
+        {10, 0x2a, 71},
+        {15, 0x2a, 71},
+        {24, 0x2a, 71},
+        {31, 0x2a, 71},
+        {41, 0x2a, 71},
+        {56, 0x2b, 71},
+        {3, 0x2a, 72},
+        {6, 0x2a, 72},
+        {10, 0x2a, 72},
+        {15, 0x2a, 72},
+        {24, 0x2a, 72},
+        {31, 0x2a, 72},
+        {41, 0x2a, 72},
+        {56, 0x2b, 72},
+    },
+    /* 46 */
+    {
+        {2, 0x2a, 73},
+        {9, 0x2a, 73},
+        {23, 0x2a, 73},
+        {40, 0x2b, 73},
+        {2, 0x2a, 74},
+        {9, 0x2a, 74},
+        {23, 0x2a, 74},
+        {40, 0x2b, 74},
+        {2, 0x2a, 75},
+        {9, 0x2a, 75},
+        {23, 0x2a, 75},
+        {40, 0x2b, 75},
+        {2, 0x2a, 76},
+        {9, 0x2a, 76},
+        {23, 0x2a, 76},
+        {40, 0x2b, 76},
+    },
+    /* 47 */
+    {
+        {3, 0x2a, 73},
+        {6, 0x2a, 73},
+        {10, 0x2a, 73},
+        {15, 0x2a, 73},
+        {24, 0x2a, 73},
+        {31, 0x2a, 73},
+        {41, 0x2a, 73},
+        {56, 0x2b, 73},
+        {3, 0x2a, 74},
+        {6, 0x2a, 74},
+        {10, 0x2a, 74},
+        {15, 0x2a, 74},
+        {24, 0x2a, 74},
+        {31, 0x2a, 74},
+        {41, 0x2a, 74},
+        {56, 0x2b, 74},
+    },
+    /* 48 */
+    {
+        {3, 0x2a, 75},
+        {6, 0x2a, 75},
+        {10, 0x2a, 75},
+        {15, 0x2a, 75},
+        {24, 0x2a, 75},
+        {31, 0x2a, 75},
+        {41, 0x2a, 75},
+        {56, 0x2b, 75},
+        {3, 0x2a, 76},
+        {6, 0x2a, 76},
+        {10, 0x2a, 76},
+        {15, 0x2a, 76},
+        {24, 0x2a, 76},
+        {31, 0x2a, 76},
+        {41, 0x2a, 76},
+        {56, 0x2b, 76},
+    },
+    /* 49 */
+    {
+        {1, 0x2a, 77},
+        {22, 0x2b, 77},
+        {1, 0x2a, 78},
+        {22, 0x2b, 78},
+        {1, 0x2a, 79},
+        {22, 0x2b, 79},
+        {1, 0x2a, 80},
+        {22, 0x2b, 80},
+        {1, 0x2a, 81},
+        {22, 0x2b, 81},
+        {1, 0x2a, 82},
+        {22, 0x2b, 82},
+        {1, 0x2a, 83},
+        {22, 0x2b, 83},
+        {1, 0x2a, 84},
+        {22, 0x2b, 84},
+    },
+    /* 50 */
+    {
+        {2, 0x2a, 77},
+        {9, 0x2a, 77},
+        {23, 0x2a, 77},
+        {40, 0x2b, 77},
+        {2, 0x2a, 78},
+        {9, 0x2a, 78},
+        {23, 0x2a, 78},
+        {40, 0x2b, 78},
+        {2, 0x2a, 79},
+        {9, 0x2a, 79},
+        {23, 0x2a, 79},
+        {40, 0x2b, 79},
+        {2, 0x2a, 80},
+        {9, 0x2a, 80},
+        {23, 0x2a, 80},
+        {40, 0x2b, 80},
+    },
+    /* 51 */
+    {
+        {3, 0x2a, 77},
+        {6, 0x2a, 77},
+        {10, 0x2a, 77},
+        {15, 0x2a, 77},
+        {24, 0x2a, 77},
+        {31, 0x2a, 77},
+        {41, 0x2a, 77},
+        {56, 0x2b, 77},
+        {3, 0x2a, 78},
+        {6, 0x2a, 78},
+        {10, 0x2a, 78},
+        {15, 0x2a, 78},
+        {24, 0x2a, 78},
+        {31, 0x2a, 78},
+        {41, 0x2a, 78},
+        {56, 0x2b, 78},
+    },
+    /* 52 */
+    {
+        {3, 0x2a, 79},
+        {6, 0x2a, 79},
+        {10, 0x2a, 79},
+        {15, 0x2a, 79},
+        {24, 0x2a, 79},
+        {31, 0x2a, 79},
+        {41, 0x2a, 79},
+        {56, 0x2b, 79},
+        {3, 0x2a, 80},
+        {6, 0x2a, 80},
+        {10, 0x2a, 80},
+        {15, 0x2a, 80},
+        {24, 0x2a, 80},
+        {31, 0x2a, 80},
+        {41, 0x2a, 80},
+        {56, 0x2b, 80},
+    },
+    /* 53 */
+    {
+        {2, 0x2a, 81},
+        {9, 0x2a, 81},
+        {23, 0x2a, 81},
+        {40, 0x2b, 81},
+        {2, 0x2a, 82},
+        {9, 0x2a, 82},
+        {23, 0x2a, 82},
+        {40, 0x2b, 82},
+        {2, 0x2a, 83},
+        {9, 0x2a, 83},
+        {23, 0x2a, 83},
+        {40, 0x2b, 83},
+        {2, 0x2a, 84},
+        {9, 0x2a, 84},
+        {23, 0x2a, 84},
+        {40, 0x2b, 84},
+    },
+    /* 54 */
+    {
+        {3, 0x2a, 81},
+        {6, 0x2a, 81},
+        {10, 0x2a, 81},
+        {15, 0x2a, 81},
+        {24, 0x2a, 81},
+        {31, 0x2a, 81},
+        {41, 0x2a, 81},
+        {56, 0x2b, 81},
+        {3, 0x2a, 82},
+        {6, 0x2a, 82},
+        {10, 0x2a, 82},
+        {15, 0x2a, 82},
+        {24, 0x2a, 82},
+        {31, 0x2a, 82},
+        {41, 0x2a, 82},
+        {56, 0x2b, 82},
+    },
+    /* 55 */
+    {
+        {3, 0x2a, 83},
+        {6, 0x2a, 83},
+        {10, 0x2a, 83},
+        {15, 0x2a, 83},
+        {24, 0x2a, 83},
+        {31, 0x2a, 83},
+        {41, 0x2a, 83},
+        {56, 0x2b, 83},
+        {3, 0x2a, 84},
+        {6, 0x2a, 84},
+        {10, 0x2a, 84},
+        {15, 0x2a, 84},
+        {24, 0x2a, 84},
+        {31, 0x2a, 84},
+        {41, 0x2a, 84},
+        {56, 0x2b, 84},
+    },
+    /* 56 */
+    {
+        {0, 0x2b, 85},
+        {0, 0x2b, 86},
+        {0, 0x2b, 87},
+        {0, 0x2b, 89},
+        {0, 0x03, 106},
+        {0, 0x03, 107},
+        {0, 0x03, 113},
+        {0, 0x03, 118},
+        {0, 0x03, 119},
+        {0, 0x03, 120},
+        {0, 0x03, 121},
+        {0, 0x03, 122},
+        {70, 0x00, 0},
+        {71, 0x00, 0},
+        {73, 0x00, 0},
+        {74, 0x01, 0},
+    },
+    /* 57 */
+    {
+        {1, 0x2a, 85},
+        {22, 0x2b, 85},
+        {1, 0x2a, 86},
+        {22, 0x2b, 86},
+        {1, 0x2a, 87},
+        {22, 0x2b, 87},
+        {1, 0x2a, 89},
+        {22, 0x2b, 89},
+        {1, 0x02, 106},
+        {22, 0x03, 106},
+        {1, 0x02, 107},
+        {22, 0x03, 107},
+        {1, 0x02, 113},
+        {22, 0x03, 113},
+        {1, 0x02, 118},
+        {22, 0x03, 118},
+    },
+    /* 58 */
+    {
+        {2, 0x2a, 85},
+        {9, 0x2a, 85},
+        {23, 0x2a, 85},
+        {40, 0x2b, 85},
+        {2, 0x2a, 86},
+        {9, 0x2a, 86},
+        {23, 0x2a, 86},
+        {40, 0x2b, 86},
+        {2, 0x2a, 87},
+        {9, 0x2a, 87},
+        {23, 0x2a, 87},
+        {40, 0x2b, 87},
+        {2, 0x2a, 89},
+        {9, 0x2a, 89},
+        {23, 0x2a, 89},
+        {40, 0x2b, 89},
+    },
+    /* 59 */
+    {
+        {3, 0x2a, 85},
+        {6, 0x2a, 85},
+        {10, 0x2a, 85},
+        {15, 0x2a, 85},
+        {24, 0x2a, 85},
+        {31, 0x2a, 85},
+        {41, 0x2a, 85},
+        {56, 0x2b, 85},
+        {3, 0x2a, 86},
+        {6, 0x2a, 86},
+        {10, 0x2a, 86},
+        {15, 0x2a, 86},
+        {24, 0x2a, 86},
+        {31, 0x2a, 86},
+        {41, 0x2a, 86},
+        {56, 0x2b, 86},
+    },
+    /* 60 */
+    {
+        {3, 0x2a, 87},
+        {6, 0x2a, 87},
+        {10, 0x2a, 87},
+        {15, 0x2a, 87},
+        {24, 0x2a, 87},
+        {31, 0x2a, 87},
+        {41, 0x2a, 87},
+        {56, 0x2b, 87},
+        {3, 0x2a, 89},
+        {6, 0x2a, 89},
+        {10, 0x2a, 89},
+        {15, 0x2a, 89},
+        {24, 0x2a, 89},
+        {31, 0x2a, 89},
+        {41, 0x2a, 89},
+        {56, 0x2b, 89},
+    },
+    /* 61 */
+    {
+        {2, 0x02, 106},
+        {9, 0x02, 106},
+        {23, 0x02, 106},
+        {40, 0x03, 106},
+        {2, 0x02, 107},
+        {9, 0x02, 107},
+        {23, 0x02, 107},
+        {40, 0x03, 107},
+        {2, 0x02, 113},
+        {9, 0x02, 113},
+        {23, 0x02, 113},
+        {40, 0x03, 113},
+        {2, 0x02, 118},
+        {9, 0x02, 118},
+        {23, 0x02, 118},
+        {40, 0x03, 118},
+    },
+    /* 62 */
+    {
+        {3, 0x02, 106},
+        {6, 0x02, 106},
+        {10, 0x02, 106},
+        {15, 0x02, 106},
+        {24, 0x02, 106},
+        {31, 0x02, 106},
+        {41, 0x02, 106},
+        {56, 0x03, 106},
+        {3, 0x02, 107},
+        {6, 0x02, 107},
+        {10, 0x02, 107},
+        {15, 0x02, 107},
+        {24, 0x02, 107},
+        {31, 0x02, 107},
+        {41, 0x02, 107},
+        {56, 0x03, 107},
+    },
+    /* 63 */
+    {
+        {3, 0x02, 113},
+        {6, 0x02, 113},
+        {10, 0x02, 113},
+        {15, 0x02, 113},
+        {24, 0x02, 113},
+        {31, 0x02, 113},
+        {41, 0x02, 113},
+        {56, 0x03, 113},
+        {3, 0x02, 118},
+        {6, 0x02, 118},
+        {10, 0x02, 118},
+        {15, 0x02, 118},
+        {24, 0x02, 118},
+        {31, 0x02, 118},
+        {41, 0x02, 118},
+        {56, 0x03, 118},
+    },
+    /* 64 */
+    {
+        {1, 0x02, 119},
+        {22, 0x03, 119},
+        {1, 0x02, 120},
+        {22, 0x03, 120},
+        {1, 0x02, 121},
+        {22, 0x03, 121},
+        {1, 0x02, 122},
+        {22, 0x03, 122},
+        {0, 0x03, 38},
+        {0, 0x03, 42},
+        {0, 0x0b, 44},
+        {0, 0x0b, 59},
+        {0, 0x2b, 88},
+        {0, 0x2b, 90},
+        {75, 0x00, 0},
+        {78, 0x00, 0},
+    },
+    /* 65 */
+    {
+        {2, 0x02, 119},
+        {9, 0x02, 119},
+        {23, 0x02, 119},
+        {40, 0x03, 119},
+        {2, 0x02, 120},
+        {9, 0x02, 120},
+        {23, 0x02, 120},
+        {40, 0x03, 120},
+        {2, 0x02, 121},
+        {9, 0x02, 121},
+        {23, 0x02, 121},
+        {40, 0x03, 121},
+        {2, 0x02, 122},
+        {9, 0x02, 122},
+        {23, 0x02, 122},
+        {40, 0x03, 122},
+    },
+    /* 66 */
+    {
+        {3, 0x02, 119},
+        {6, 0x02, 119},
+        {10, 0x02, 119},
+        {15, 0x02, 119},
+        {24, 0x02, 119},
+        {31, 0x02, 119},
+        {41, 0x02, 119},
+        {56, 0x03, 119},
+        {3, 0x02, 120},
+        {6, 0x02, 120},
+        {10, 0x02, 120},
+        {15, 0x02, 120},
+        {24, 0x02, 120},
+        {31, 0x02, 120},
+        {41, 0x02, 120},
+        {56, 0x03, 120},
+    },
+    /* 67 */
+    {
+        {3, 0x02, 121},
+        {6, 0x02, 121},
+        {10, 0x02, 121},
+        {15, 0x02, 121},
+        {24, 0x02, 121},
+        {31, 0x02, 121},
+        {41, 0x02, 121},
+        {56, 0x03, 121},
+        {3, 0x02, 122},
+        {6, 0x02, 122},
+        {10, 0x02, 122},
+        {15, 0x02, 122},
+        {24, 0x02, 122},
+        {31, 0x02, 122},
+        {41, 0x02, 122},
+        {56, 0x03, 122},
+    },
+    /* 68 */
+    {
+        {1, 0x02, 38},
+        {22, 0x03, 38},
+        {1, 0x02, 42},
+        {22, 0x03, 42},
+        {1, 0x0a, 44},
+        {22, 0x0b, 44},
+        {1, 0x0a, 59},
+        {22, 0x0b, 59},
+        {1, 0x2a, 88},
+        {22, 0x2b, 88},
+        {1, 0x2a, 90},
+        {22, 0x2b, 90},
+        {76, 0x00, 0},
+        {77, 0x00, 0},
+        {79, 0x00, 0},
+        {81, 0x00, 0},
+    },
+    /* 69 */
+    {
+        {2, 0x02, 38},
+        {9, 0x02, 38},
+        {23, 0x02, 38},
+        {40, 0x03, 38},
+        {2, 0x02, 42},
+        {9, 0x02, 42},
+        {23, 0x02, 42},
+        {40, 0x03, 42},
+        {2, 0x0a, 44},
+        {9, 0x0a, 44},
+        {23, 0x0a, 44},
+        {40, 0x0b, 44},
+        {2, 0x0a, 59},
+        {9, 0x0a, 59},
+        {23, 0x0a, 59},
+        {40, 0x0b, 59},
+    },
+    /* 70 */
+    {
+        {3, 0x02, 38},
+        {6, 0x02, 38},
+        {10, 0x02, 38},
+        {15, 0x02, 38},
+        {24, 0x02, 38},
+        {31, 0x02, 38},
+        {41, 0x02, 38},
+        {56, 0x03, 38},
+        {3, 0x02, 42},
+        {6, 0x02, 42},
+        {10, 0x02, 42},
+        {15, 0x02, 42},
+        {24, 0x02, 42},
+        {31, 0x02, 42},
+        {41, 0x02, 42},
+        {56, 0x03, 42},
+    },
+    /* 71 */
+    {
+        {3, 0x0a, 44},
+        {6, 0x0a, 44},
+        {10, 0x0a, 44},
+        {15, 0x0a, 44},
+        {24, 0x0a, 44},
+        {31, 0x0a, 44},
+        {41, 0x0a, 44},
+        {56, 0x0b, 44},
+        {3, 0x0a, 59},
+        {6, 0x0a, 59},
+        {10, 0x0a, 59},
+        {15, 0x0a, 59},
+        {24, 0x0a, 59},
+        {31, 0x0a, 59},
+        {41, 0x0a, 59},
+        {56, 0x0b, 59},
+    },
+    /* 72 */
+    {
+        {2, 0x2a, 88},
+        {9, 0x2a, 88},
+        {23, 0x2a, 88},
+        {40, 0x2b, 88},
+        {2, 0x2a, 90},
+        {9, 0x2a, 90},
+        {23, 0x2a, 90},
+        {40, 0x2b, 90},
+        {0, 0x03, 33},
+        {0, 0x0b, 34},
+        {0, 0x0b, 40},
+        {0, 0x0b, 41},
+        {0, 0x0b, 63},
+        {80, 0x00, 0},
+        {82, 0x00, 0},
+        {84, 0x00, 0},
+    },
+    /* 73 */
+    {
+        {3, 0x2a, 88},
+        {6, 0x2a, 88},
+        {10, 0x2a, 88},
+        {15, 0x2a, 88},
+        {24, 0x2a, 88},
+        {31, 0x2a, 88},
+        {41, 0x2a, 88},
+        {56, 0x2b, 88},
+        {3, 0x2a, 90},
+        {6, 0x2a, 90},
+        {10, 0x2a, 90},
+        {15, 0x2a, 90},
+        {24, 0x2a, 90},
+        {31, 0x2a, 90},
+        {41, 0x2a, 90},
+        {56, 0x2b, 90},
+    },
+    /* 74 */
+    {
+        {1, 0x02, 33},
+        {22, 0x03, 33},
+        {1, 0x0a, 34},
+        {22, 0x0b, 34},
+        {1, 0x0a, 40},
+        {22, 0x0b, 40},
+        {1, 0x0a, 41},
+        {22, 0x0b, 41},
+        {1, 0x0a, 63},
+        {22, 0x0b, 63},
+        {0, 0x03, 39},
+        {0, 0x03, 43},
+        {0, 0x03, 124},
+        {83, 0x00, 0},
+        {85, 0x00, 0},
+        {88, 0x00, 0},
+    },
+    /* 75 */
+    {
+        {2, 0x02, 33},
+        {9, 0x02, 33},
+        {23, 0x02, 33},
+        {40, 0x03, 33},
+        {2, 0x0a, 34},
+        {9, 0x0a, 34},
+        {23, 0x0a, 34},
+        {40, 0x0b, 34},
+        {2, 0x0a, 40},
+        {9, 0x0a, 40},
+        {23, 0x0a, 40},
+        {40, 0x0b, 40},
+        {2, 0x0a, 41},
+        {9, 0x0a, 41},
+        {23, 0x0a, 41},
+        {40, 0x0b, 41},
+    },
+    /* 76 */
+    {
+        {3, 0x02, 33},
+        {6, 0x02, 33},
+        {10, 0x02, 33},
+        {15, 0x02, 33},
+        {24, 0x02, 33},
+        {31, 0x02, 33},
+        {41, 0x02, 33},
+        {56, 0x03, 33},
+        {3, 0x0a, 34},
+        {6, 0x0a, 34},
+        {10, 0x0a, 34},
+        {15, 0x0a, 34},
+        {24, 0x0a, 34},
+        {31, 0x0a, 34},
+        {41, 0x0a, 34},
+        {56, 0x0b, 34},
+    },
+    /* 77 */
+    {
+        {3, 0x0a, 40},
+        {6, 0x0a, 40},
+        {10, 0x0a, 40},
+        {15, 0x0a, 40},
+        {24, 0x0a, 40},
+        {31, 0x0a, 40},
+        {41, 0x0a, 40},
+        {56, 0x0b, 40},
+        {3, 0x0a, 41},
+        {6, 0x0a, 41},
+        {10, 0x0a, 41},
+        {15, 0x0a, 41},
+        {24, 0x0a, 41},
+        {31, 0x0a, 41},
+        {41, 0x0a, 41},
+        {56, 0x0b, 41},
+    },
+    /* 78 */
+    {
+        {2, 0x0a, 63},
+        {9, 0x0a, 63},
+        {23, 0x0a, 63},
+        {40, 0x0b, 63},
+        {1, 0x02, 39},
+        {22, 0x03, 39},
+        {1, 0x02, 43},
+        {22, 0x03, 43},
+        {1, 0x02, 124},
+        {22, 0x03, 124},
+        {0, 0x03, 35},
+        {0, 0x0b, 62},
+        {86, 0x00, 0},
+        {87, 0x00, 0},
+        {89, 0x00, 0},
+        {90, 0x00, 0},
+    },
+    /* 79 */
+    {
+        {3, 0x0a, 63},
+        {6, 0x0a, 63},
+        {10, 0x0a, 63},
+        {15, 0x0a, 63},
+        {24, 0x0a, 63},
+        {31, 0x0a, 63},
+        {41, 0x0a, 63},
+        {56, 0x0b, 63},
+        {2, 0x02, 39},
+        {9, 0x02, 39},
+        {23, 0x02, 39},
+        {40, 0x03, 39},
+        {2, 0x02, 43},
+        {9, 0x02, 43},
+        {23, 0x02, 43},
+        {40, 0x03, 43},
+    },
+    /* 80 */
+    {
+        {3, 0x02, 39},
+        {6, 0x02, 39},
+        {10, 0x02, 39},
+        {15, 0x02, 39},
+        {24, 0x02, 39},
+        {31, 0x02, 39},
+        {41, 0x02, 39},
+        {56, 0x03, 39},
+        {3, 0x02, 43},
+        {6, 0x02, 43},
+        {10, 0x02, 43},
+        {15, 0x02, 43},
+        {24, 0x02, 43},
+        {31, 0x02, 43},
+        {41, 0x02, 43},
+        {56, 0x03, 43},
+    },
+    /* 81 */
+    {
+        {2, 0x02, 124},
+        {9, 0x02, 124},
+        {23, 0x02, 124},
+        {40, 0x03, 124},
+        {1, 0x02, 35},
+        {22, 0x03, 35},
+        {1, 0x0a, 62},
+        {22, 0x0b, 62},
+        {0, 0x1b, 0},
+        {0, 0x03, 36},
+        {0, 0x0b, 64},
+        {0, 0x0b, 91},
+        {0, 0x0b, 93},
+        {0, 0x03, 126},
+        {91, 0x00, 0},
+        {92, 0x00, 0},
+    },
+    /* 82 */
+    {
+        {3, 0x02, 124},
+        {6, 0x02, 124},
+        {10, 0x02, 124},
+        {15, 0x02, 124},
+        {24, 0x02, 124},
+        {31, 0x02, 124},
+        {41, 0x02, 124},
+        {56, 0x03, 124},
+        {2, 0x02, 35},
+        {9, 0x02, 35},
+        {23, 0x02, 35},
+        {40, 0x03, 35},
+        {2, 0x0a, 62},
+        {9, 0x0a, 62},
+        {23, 0x0a, 62},
+        {40, 0x0b, 62},
+    },
+    /* 83 */
+    {
+        {3, 0x02, 35},
+        {6, 0x02, 35},
+        {10, 0x02, 35},
+        {15, 0x02, 35},
+        {24, 0x02, 35},
+        {31, 0x02, 35},
+        {41, 0x02, 35},
+        {56, 0x03, 35},
+        {3, 0x0a, 62},
+        {6, 0x0a, 62},
+        {10, 0x0a, 62},
+        {15, 0x0a, 62},
+        {24, 0x0a, 62},
+        {31, 0x0a, 62},
+        {41, 0x0a, 62},
+        {56, 0x0b, 62},
+    },
+    /* 84 */
+    {
+        {1, 0x1a, 0},
+        {22, 0x1b, 0},
+        {1, 0x02, 36},
+        {22, 0x03, 36},
+        {1, 0x0a, 64},
+        {22, 0x0b, 64},
+        {1, 0x0a, 91},
+        {22, 0x0b, 91},
+        {1, 0x0a, 93},
+        {22, 0x0b, 93},
+        {1, 0x02, 126},
+        {22, 0x03, 126},
+        {0, 0x03, 94},
+        {0, 0x0b, 125},
+        {93, 0x00, 0},
+        {94, 0x00, 0},
+    },
+    /* 85 */
+    {
+        {2, 0x1a, 0},
+        {9, 0x1a, 0},
+        {23, 0x1a, 0},
+        {40, 0x1b, 0},
+        {2, 0x02, 36},
+        {9, 0x02, 36},
+        {23, 0x02, 36},
+        {40, 0x03, 36},
+        {2, 0x0a, 64},
+        {9, 0x0a, 64},
+        {23, 0x0a, 64},
+        {40, 0x0b, 64},
+        {2, 0x0a, 91},
+        {9, 0x0a, 91},
+        {23, 0x0a, 91},
+        {40, 0x0b, 91},
+    },
+    /* 86 */
+    {
+        {3, 0x1a, 0},
+        {6, 0x1a, 0},
+        {10, 0x1a, 0},
+        {15, 0x1a, 0},
+        {24, 0x1a, 0},
+        {31, 0x1a, 0},
+        {41, 0x1a, 0},
+        {56, 0x1b, 0},
+        {3, 0x02, 36},
+        {6, 0x02, 36},
+        {10, 0x02, 36},
+        {15, 0x02, 36},
+        {24, 0x02, 36},
+        {31, 0x02, 36},
+        {41, 0x02, 36},
+        {56, 0x03, 36},
+    },
+    /* 87 */
+    {
+        {3, 0x0a, 64},
+        {6, 0x0a, 64},
+        {10, 0x0a, 64},
+        {15, 0x0a, 64},
+        {24, 0x0a, 64},
+        {31, 0x0a, 64},
+        {41, 0x0a, 64},
+        {56, 0x0b, 64},
+        {3, 0x0a, 91},
+        {6, 0x0a, 91},
+        {10, 0x0a, 91},
+        {15, 0x0a, 91},
+        {24, 0x0a, 91},
+        {31, 0x0a, 91},
+        {41, 0x0a, 91},
+        {56, 0x0b, 91},
+    },
+    /* 88 */
+    {
+        {2, 0x0a, 93},
+        {9, 0x0a, 93},
+        {23, 0x0a, 93},
+        {40, 0x0b, 93},
+        {2, 0x02, 126},
+        {9, 0x02, 126},
+        {23, 0x02, 126},
+        {40, 0x03, 126},
+        {1, 0x02, 94},
+        {22, 0x03, 94},
+        {1, 0x0a, 125},
+        {22, 0x0b, 125},
+        {0, 0x0b, 60},
+        {0, 0x03, 96},
+        {0, 0x0b, 123},
+        {95, 0x00, 0},
+    },
+    /* 89 */
+    {
+        {3, 0x0a, 93},
+        {6, 0x0a, 93},
+        {10, 0x0a, 93},
+        {15, 0x0a, 93},
+        {24, 0x0a, 93},
+        {31, 0x0a, 93},
+        {41, 0x0a, 93},
+        {56, 0x0b, 93},
+        {3, 0x02, 126},
+        {6, 0x02, 126},
+        {10, 0x02, 126},
+        {15, 0x02, 126},
+        {24, 0x02, 126},
+        {31, 0x02, 126},
+        {41, 0x02, 126},
+        {56, 0x03, 126},
+    },
+    /* 90 */
+    {
+        {2, 0x02, 94},
+        {9, 0x02, 94},
+        {23, 0x02, 94},
+        {40, 0x03, 94},
+        {2, 0x0a, 125},
+        {9, 0x0a, 125},
+        {23, 0x0a, 125},
+        {40, 0x0b, 125},
+        {1, 0x0a, 60},
+        {22, 0x0b, 60},
+        {1, 0x02, 96},
+        {22, 0x03, 96},
+        {1, 0x0a, 123},
+        {22, 0x0b, 123},
+        {96, 0x00, 0},
+        {110, 0x00, 0},
+    },
+    /* 91 */
+    {
+        {3, 0x02, 94},
+        {6, 0x02, 94},
+        {10, 0x02, 94},
+        {15, 0x02, 94},
+        {24, 0x02, 94},
+        {31, 0x02, 94},
+        {41, 0x02, 94},
+        {56, 0x03, 94},
+        {3, 0x0a, 125},
+        {6, 0x0a, 125},
+        {10, 0x0a, 125},
+        {15, 0x0a, 125},
+        {24, 0x0a, 125},
+        {31, 0x0a, 125},
+        {41, 0x0a, 125},
+        {56, 0x0b, 125},
+    },
+    /* 92 */
+    {
+        {2, 0x0a, 60},
+        {9, 0x0a, 60},
+        {23, 0x0a, 60},
+        {40, 0x0b, 60},
+        {2, 0x02, 96},
+        {9, 0x02, 96},
+        {23, 0x02, 96},
+        {40, 0x03, 96},
+        {2, 0x0a, 123},
+        {9, 0x0a, 123},
+        {23, 0x0a, 123},
+        {40, 0x0b, 123},
+        {97, 0x00, 0},
+        {101, 0x00, 0},
+        {111, 0x00, 0},
+        {133, 0x00, 0},
+    },
+    /* 93 */
+    {
+        {3, 0x0a, 60},
+        {6, 0x0a, 60},
+        {10, 0x0a, 60},
+        {15, 0x0a, 60},
+        {24, 0x0a, 60},
+        {31, 0x0a, 60},
+        {41, 0x0a, 60},
+        {56, 0x0b, 60},
+        {3, 0x02, 96},
+        {6, 0x02, 96},
+        {10, 0x02, 96},
+        {15, 0x02, 96},
+        {24, 0x02, 96},
+        {31, 0x02, 96},
+        {41, 0x02, 96},
+        {56, 0x03, 96},
+    },
+    /* 94 */
+    {
+        {3, 0x0a, 123},
+        {6, 0x0a, 123},
+        {10, 0x0a, 123},
+        {15, 0x0a, 123},
+        {24, 0x0a, 123},
+        {31, 0x0a, 123},
+        {41, 0x0a, 123},
+        {56, 0x0b, 123},
+        {98, 0x00, 0},
+        {99, 0x00, 0},
+        {102, 0x00, 0},
+        {105, 0x00, 0},
+        {112, 0x00, 0},
+        {119, 0x00, 0},
+        {134, 0x00, 0},
+        {153, 0x00, 0},
+    },
+    /* 95 */
+    {
+        {0, 0x0b, 92},
+        {0, 0x0b, 195},
+        {0, 0x0b, 208},
+        {100, 0x00, 0},
+        {103, 0x00, 0},
+        {104, 0x00, 0},
+        {106, 0x00, 0},
+        {107, 0x00, 0},
+        {113, 0x00, 0},
+        {116, 0x00, 0},
+        {120, 0x00, 0},
+        {126, 0x00, 0},
+        {135, 0x00, 0},
+        {142, 0x00, 0},
+        {154, 0x00, 0},
+        {169, 0x00, 0},
+    },
+    /* 96 */
+    {
+        {1, 0x0a, 92},
+        {22, 0x0b, 92},
+        {1, 0x0a, 195},
+        {22, 0x0b, 195},
+        {1, 0x0a, 208},
+        {22, 0x0b, 208},
+        {0, 0x0b, 128},
+        {0, 0x0b, 130},
+        {0, 0x0b, 131},
+        {0, 0x0b, 162},
+        {0, 0x0b, 184},
+        {0, 0x0b, 194},
+        {0, 0x0b, 224},
+        {0, 0x0b, 226},
+        {108, 0x00, 0},
+        {109, 0x00, 0},
+    },
+    /* 97 */
+    {
+        {2, 0x0a, 92},
+        {9, 0x0a, 92},
+        {23, 0x0a, 92},
+        {40, 0x0b, 92},
+        {2, 0x0a, 195},
+        {9, 0x0a, 195},
+        {23, 0x0a, 195},
+        {40, 0x0b, 195},
+        {2, 0x0a, 208},
+        {9, 0x0a, 208},
+        {23, 0x0a, 208},
+        {40, 0x0b, 208},
+        {1, 0x0a, 128},
+        {22, 0x0b, 128},
+        {1, 0x0a, 130},
+        {22, 0x0b, 130},
+    },
+    /* 98 */
+    {
+        {3, 0x0a, 92},
+        {6, 0x0a, 92},
+        {10, 0x0a, 92},
+        {15, 0x0a, 92},
+        {24, 0x0a, 92},
+        {31, 0x0a, 92},
+        {41, 0x0a, 92},
+        {56, 0x0b, 92},
+        {3, 0x0a, 195},
+        {6, 0x0a, 195},
+        {10, 0x0a, 195},
+        {15, 0x0a, 195},
+        {24, 0x0a, 195},
+        {31, 0x0a, 195},
+        {41, 0x0a, 195},
+        {56, 0x0b, 195},
+    },
+    /* 99 */
+    {
+        {3, 0x0a, 208},
+        {6, 0x0a, 208},
+        {10, 0x0a, 208},
+        {15, 0x0a, 208},
+        {24, 0x0a, 208},
+        {31, 0x0a, 208},
+        {41, 0x0a, 208},
+        {56, 0x0b, 208},
+        {2, 0x0a, 128},
+        {9, 0x0a, 128},
+        {23, 0x0a, 128},
+        {40, 0x0b, 128},
+        {2, 0x0a, 130},
+        {9, 0x0a, 130},
+        {23, 0x0a, 130},
+        {40, 0x0b, 130},
+    },
+    /* 100 */
+    {
+        {3, 0x0a, 128},
+        {6, 0x0a, 128},
+        {10, 0x0a, 128},
+        {15, 0x0a, 128},
+        {24, 0x0a, 128},
+        {31, 0x0a, 128},
+        {41, 0x0a, 128},
+        {56, 0x0b, 128},
+        {3, 0x0a, 130},
+        {6, 0x0a, 130},
+        {10, 0x0a, 130},
+        {15, 0x0a, 130},
+        {24, 0x0a, 130},
+        {31, 0x0a, 130},
+        {41, 0x0a, 130},
+        {56, 0x0b, 130},
+    },
+    /* 101 */
+    {
+        {1, 0x0a, 131},
+        {22, 0x0b, 131},
+        {1, 0x0a, 162},
+        {22, 0x0b, 162},
+        {1, 0x0a, 184},
+        {22, 0x0b, 184},
+        {1, 0x0a, 194},
+        {22, 0x0b, 194},
+        {1, 0x0a, 224},
+        {22, 0x0b, 224},
+        {1, 0x0a, 226},
+        {22, 0x0b, 226},
+        {0, 0x0b, 153},
+        {0, 0x0b, 161},
+        {0, 0x0b, 167},
+        {0, 0x0b, 172},
+    },
+    /* 102 */
+    {
+        {2, 0x0a, 131},
+        {9, 0x0a, 131},
+        {23, 0x0a, 131},
+        {40, 0x0b, 131},
+        {2, 0x0a, 162},
+        {9, 0x0a, 162},
+        {23, 0x0a, 162},
+        {40, 0x0b, 162},
+        {2, 0x0a, 184},
+        {9, 0x0a, 184},
+        {23, 0x0a, 184},
+        {40, 0x0b, 184},
+        {2, 0x0a, 194},
+        {9, 0x0a, 194},
+        {23, 0x0a, 194},
+        {40, 0x0b, 194},
+    },
+    /* 103 */
+    {
+        {3, 0x0a, 131},
+        {6, 0x0a, 131},
+        {10, 0x0a, 131},
+        {15, 0x0a, 131},
+        {24, 0x0a, 131},
+        {31, 0x0a, 131},
+        {41, 0x0a, 131},
+        {56, 0x0b, 131},
+        {3, 0x0a, 162},
+        {6, 0x0a, 162},
+        {10, 0x0a, 162},
+        {15, 0x0a, 162},
+        {24, 0x0a, 162},
+        {31, 0x0a, 162},
+        {41, 0x0a, 162},
+        {56, 0x0b, 162},
+    },
+    /* 104 */
+    {
+        {3, 0x0a, 184},
+        {6, 0x0a, 184},
+        {10, 0x0a, 184},
+        {15, 0x0a, 184},
+        {24, 0x0a, 184},
+        {31, 0x0a, 184},
+        {41, 0x0a, 184},
+        {56, 0x0b, 184},
+        {3, 0x0a, 194},
+        {6, 0x0a, 194},
+        {10, 0x0a, 194},
+        {15, 0x0a, 194},
+        {24, 0x0a, 194},
+        {31, 0x0a, 194},
+        {41, 0x0a, 194},
+        {56, 0x0b, 194},
+    },
+    /* 105 */
+    {
+        {2, 0x0a, 224},
+        {9, 0x0a, 224},
+        {23, 0x0a, 224},
+        {40, 0x0b, 224},
+        {2, 0x0a, 226},
+        {9, 0x0a, 226},
+        {23, 0x0a, 226},
+        {40, 0x0b, 226},
+        {1, 0x0a, 153},
+        {22, 0x0b, 153},
+        {1, 0x0a, 161},
+        {22, 0x0b, 161},
+        {1, 0x0a, 167},
+        {22, 0x0b, 167},
+        {1, 0x0a, 172},
+        {22, 0x0b, 172},
+    },
+    /* 106 */
+    {
+        {3, 0x0a, 224},
+        {6, 0x0a, 224},
+        {10, 0x0a, 224},
+        {15, 0x0a, 224},
+        {24, 0x0a, 224},
+        {31, 0x0a, 224},
+        {41, 0x0a, 224},
+        {56, 0x0b, 224},
+        {3, 0x0a, 226},
+        {6, 0x0a, 226},
+        {10, 0x0a, 226},
+        {15, 0x0a, 226},
+        {24, 0x0a, 226},
+        {31, 0x0a, 226},
+        {41, 0x0a, 226},
+        {56, 0x0b, 226},
+    },
+    /* 107 */
+    {
+        {2, 0x0a, 153},
+        {9, 0x0a, 153},
+        {23, 0x0a, 153},
+        {40, 0x0b, 153},
+        {2, 0x0a, 161},
+        {9, 0x0a, 161},
+        {23, 0x0a, 161},
+        {40, 0x0b, 161},
+        {2, 0x0a, 167},
+        {9, 0x0a, 167},
+        {23, 0x0a, 167},
+        {40, 0x0b, 167},
+        {2, 0x0a, 172},
+        {9, 0x0a, 172},
+        {23, 0x0a, 172},
+        {40, 0x0b, 172},
+    },
+    /* 108 */
+    {
+        {3, 0x0a, 153},
+        {6, 0x0a, 153},
+        {10, 0x0a, 153},
+        {15, 0x0a, 153},
+        {24, 0x0a, 153},
+        {31, 0x0a, 153},
+        {41, 0x0a, 153},
+        {56, 0x0b, 153},
+        {3, 0x0a, 161},
+        {6, 0x0a, 161},
+        {10, 0x0a, 161},
+        {15, 0x0a, 161},
+        {24, 0x0a, 161},
+        {31, 0x0a, 161},
+        {41, 0x0a, 161},
+        {56, 0x0b, 161},
+    },
+    /* 109 */
+    {
+        {3, 0x0a, 167},
+        {6, 0x0a, 167},
+        {10, 0x0a, 167},
+        {15, 0x0a, 167},
+        {24, 0x0a, 167},
+        {31, 0x0a, 167},
+        {41, 0x0a, 167},
+        {56, 0x0b, 167},
+        {3, 0x0a, 172},
+        {6, 0x0a, 172},
+        {10, 0x0a, 172},
+        {15, 0x0a, 172},
+        {24, 0x0a, 172},
+        {31, 0x0a, 172},
+        {41, 0x0a, 172},
+        {56, 0x0b, 172},
+    },
+    /* 110 */
+    {
+        {114, 0x00, 0},
+        {115, 0x00, 0},
+        {117, 0x00, 0},
+        {118, 0x00, 0},
+        {121, 0x00, 0},
+        {123, 0x00, 0},
+        {127, 0x00, 0},
+        {130, 0x00, 0},
+        {136, 0x00, 0},
+        {139, 0x00, 0},
+        {143, 0x00, 0},
+        {146, 0x00, 0},
+        {155, 0x00, 0},
+        {162, 0x00, 0},
+        {170, 0x00, 0},
+        {180, 0x00, 0},
+    },
+    /* 111 */
+    {
+        {0, 0x0b, 176},
+        {0, 0x0b, 177},
+        {0, 0x0b, 179},
+        {0, 0x0b, 209},
+        {0, 0x0b, 216},
+        {0, 0x0b, 217},
+        {0, 0x0b, 227},
+        {0, 0x0b, 229},
+        {0, 0x0b, 230},
+        {122, 0x00, 0},
+        {124, 0x00, 0},
+        {125, 0x00, 0},
+        {128, 0x00, 0},
+        {129, 0x00, 0},
+        {131, 0x00, 0},
+        {132, 0x00, 0},
+    },
+    /* 112 */
+    {
+        {1, 0x0a, 176},
+        {22, 0x0b, 176},
+        {1, 0x0a, 177},
+        {22, 0x0b, 177},
+        {1, 0x0a, 179},
+        {22, 0x0b, 179},
+        {1, 0x0a, 209},
+        {22, 0x0b, 209},
+        {1, 0x0a, 216},
+        {22, 0x0b, 216},
+        {1, 0x0a, 217},
+        {22, 0x0b, 217},
+        {1, 0x0a, 227},
+        {22, 0x0b, 227},
+        {1, 0x0a, 229},
+        {22, 0x0b, 229},
+    },
+    /* 113 */
+    {
+        {2, 0x0a, 176},
+        {9, 0x0a, 176},
+        {23, 0x0a, 176},
+        {40, 0x0b, 176},
+        {2, 0x0a, 177},
+        {9, 0x0a, 177},
+        {23, 0x0a, 177},
+        {40, 0x0b, 177},
+        {2, 0x0a, 179},
+        {9, 0x0a, 179},
+        {23, 0x0a, 179},
+        {40, 0x0b, 179},
+        {2, 0x0a, 209},
+        {9, 0x0a, 209},
+        {23, 0x0a, 209},
+        {40, 0x0b, 209},
+    },
+    /* 114 */
+    {
+        {3, 0x0a, 176},
+        {6, 0x0a, 176},
+        {10, 0x0a, 176},
+        {15, 0x0a, 176},
+        {24, 0x0a, 176},
+        {31, 0x0a, 176},
+        {41, 0x0a, 176},
+        {56, 0x0b, 176},
+        {3, 0x0a, 177},
+        {6, 0x0a, 177},
+        {10, 0x0a, 177},
+        {15, 0x0a, 177},
+        {24, 0x0a, 177},
+        {31, 0x0a, 177},
+        {41, 0x0a, 177},
+        {56, 0x0b, 177},
+    },
+    /* 115 */
+    {
+        {3, 0x0a, 179},
+        {6, 0x0a, 179},
+        {10, 0x0a, 179},
+        {15, 0x0a, 179},
+        {24, 0x0a, 179},
+        {31, 0x0a, 179},
+        {41, 0x0a, 179},
+        {56, 0x0b, 179},
+        {3, 0x0a, 209},
+        {6, 0x0a, 209},
+        {10, 0x0a, 209},
+        {15, 0x0a, 209},
+        {24, 0x0a, 209},
+        {31, 0x0a, 209},
+        {41, 0x0a, 209},
+        {56, 0x0b, 209},
+    },
+    /* 116 */
+    {
+        {2, 0x0a, 216},
+        {9, 0x0a, 216},
+        {23, 0x0a, 216},
+        {40, 0x0b, 216},
+        {2, 0x0a, 217},
+        {9, 0x0a, 217},
+        {23, 0x0a, 217},
+        {40, 0x0b, 217},
+        {2, 0x0a, 227},
+        {9, 0x0a, 227},
+        {23, 0x0a, 227},
+        {40, 0x0b, 227},
+        {2, 0x0a, 229},
+        {9, 0x0a, 229},
+        {23, 0x0a, 229},
+        {40, 0x0b, 229},
+    },
+    /* 117 */
+    {
+        {3, 0x0a, 216},
+        {6, 0x0a, 216},
+        {10, 0x0a, 216},
+        {15, 0x0a, 216},
+        {24, 0x0a, 216},
+        {31, 0x0a, 216},
+        {41, 0x0a, 216},
+        {56, 0x0b, 216},
+        {3, 0x0a, 217},
+        {6, 0x0a, 217},
+        {10, 0x0a, 217},
+        {15, 0x0a, 217},
+        {24, 0x0a, 217},
+        {31, 0x0a, 217},
+        {41, 0x0a, 217},
+        {56, 0x0b, 217},
+    },
+    /* 118 */
+    {
+        {3, 0x0a, 227},
+        {6, 0x0a, 227},
+        {10, 0x0a, 227},
+        {15, 0x0a, 227},
+        {24, 0x0a, 227},
+        {31, 0x0a, 227},
+        {41, 0x0a, 227},
+        {56, 0x0b, 227},
+        {3, 0x0a, 229},
+        {6, 0x0a, 229},
+        {10, 0x0a, 229},
+        {15, 0x0a, 229},
+        {24, 0x0a, 229},
+        {31, 0x0a, 229},
+        {41, 0x0a, 229},
+        {56, 0x0b, 229},
+    },
+    /* 119 */
+    {
+        {1, 0x0a, 230},
+        {22, 0x0b, 230},
+        {0, 0x0b, 129},
+        {0, 0x0b, 132},
+        {0, 0x0b, 133},
+        {0, 0x0b, 134},
+        {0, 0x0b, 136},
+        {0, 0x0b, 146},
+        {0, 0x0b, 154},
+        {0, 0x0b, 156},
+        {0, 0x0b, 160},
+        {0, 0x0b, 163},
+        {0, 0x0b, 164},
+        {0, 0x0b, 169},
+        {0, 0x0b, 170},
+        {0, 0x0b, 173},
+    },
+    /* 120 */
+    {
+        {2, 0x0a, 230},
+        {9, 0x0a, 230},
+        {23, 0x0a, 230},
+        {40, 0x0b, 230},
+        {1, 0x0a, 129},
+        {22, 0x0b, 129},
+        {1, 0x0a, 132},
+        {22, 0x0b, 132},
+        {1, 0x0a, 133},
+        {22, 0x0b, 133},
+        {1, 0x0a, 134},
+        {22, 0x0b, 134},
+        {1, 0x0a, 136},
+        {22, 0x0b, 136},
+        {1, 0x0a, 146},
+        {22, 0x0b, 146},
+    },
+    /* 121 */
+    {
+        {3, 0x0a, 230},
+        {6, 0x0a, 230},
+        {10, 0x0a, 230},
+        {15, 0x0a, 230},
+        {24, 0x0a, 230},
+        {31, 0x0a, 230},
+        {41, 0x0a, 230},
+        {56, 0x0b, 230},
+        {2, 0x0a, 129},
+        {9, 0x0a, 129},
+        {23, 0x0a, 129},
+        {40, 0x0b, 129},
+        {2, 0x0a, 132},
+        {9, 0x0a, 132},
+        {23, 0x0a, 132},
+        {40, 0x0b, 132},
+    },
+    /* 122 */
+    {
+        {3, 0x0a, 129},
+        {6, 0x0a, 129},
+        {10, 0x0a, 129},
+        {15, 0x0a, 129},
+        {24, 0x0a, 129},
+        {31, 0x0a, 129},
+        {41, 0x0a, 129},
+        {56, 0x0b, 129},
+        {3, 0x0a, 132},
+        {6, 0x0a, 132},
+        {10, 0x0a, 132},
+        {15, 0x0a, 132},
+        {24, 0x0a, 132},
+        {31, 0x0a, 132},
+        {41, 0x0a, 132},
+        {56, 0x0b, 132},
+    },
+    /* 123 */
+    {
+        {2, 0x0a, 133},
+        {9, 0x0a, 133},
+        {23, 0x0a, 133},
+        {40, 0x0b, 133},
+        {2, 0x0a, 134},
+        {9, 0x0a, 134},
+        {23, 0x0a, 134},
+        {40, 0x0b, 134},
+        {2, 0x0a, 136},
+        {9, 0x0a, 136},
+        {23, 0x0a, 136},
+        {40, 0x0b, 136},
+        {2, 0x0a, 146},
+        {9, 0x0a, 146},
+        {23, 0x0a, 146},
+        {40, 0x0b, 146},
+    },
+    /* 124 */
+    {
+        {3, 0x0a, 133},
+        {6, 0x0a, 133},
+        {10, 0x0a, 133},
+        {15, 0x0a, 133},
+        {24, 0x0a, 133},
+        {31, 0x0a, 133},
+        {41, 0x0a, 133},
+        {56, 0x0b, 133},
+        {3, 0x0a, 134},
+        {6, 0x0a, 134},
+        {10, 0x0a, 134},
+        {15, 0x0a, 134},
+        {24, 0x0a, 134},
+        {31, 0x0a, 134},
+        {41, 0x0a, 134},
+        {56, 0x0b, 134},
+    },
+    /* 125 */
+    {
+        {3, 0x0a, 136},
+        {6, 0x0a, 136},
+        {10, 0x0a, 136},
+        {15, 0x0a, 136},
+        {24, 0x0a, 136},
+        {31, 0x0a, 136},
+        {41, 0x0a, 136},
+        {56, 0x0b, 136},
+        {3, 0x0a, 146},
+        {6, 0x0a, 146},
+        {10, 0x0a, 146},
+        {15, 0x0a, 146},
+        {24, 0x0a, 146},
+        {31, 0x0a, 146},
+        {41, 0x0a, 146},
+        {56, 0x0b, 146},
+    },
+    /* 126 */
+    {
+        {1, 0x0a, 154},
+        {22, 0x0b, 154},
+        {1, 0x0a, 156},
+        {22, 0x0b, 156},
+        {1, 0x0a, 160},
+        {22, 0x0b, 160},
+        {1, 0x0a, 163},
+        {22, 0x0b, 163},
+        {1, 0x0a, 164},
+        {22, 0x0b, 164},
+        {1, 0x0a, 169},
+        {22, 0x0b, 169},
+        {1, 0x0a, 170},
+        {22, 0x0b, 170},
+        {1, 0x0a, 173},
+        {22, 0x0b, 173},
+    },
+    /* 127 */
+    {
+        {2, 0x0a, 154},
+        {9, 0x0a, 154},
+        {23, 0x0a, 154},
+        {40, 0x0b, 154},
+        {2, 0x0a, 156},
+        {9, 0x0a, 156},
+        {23, 0x0a, 156},
+        {40, 0x0b, 156},
+        {2, 0x0a, 160},
+        {9, 0x0a, 160},
+        {23, 0x0a, 160},
+        {40, 0x0b, 160},
+        {2, 0x0a, 163},
+        {9, 0x0a, 163},
+        {23, 0x0a, 163},
+        {40, 0x0b, 163},
+    },
+    /* 128 */
+    {
+        {3, 0x0a, 154},
+        {6, 0x0a, 154},
+        {10, 0x0a, 154},
+        {15, 0x0a, 154},
+        {24, 0x0a, 154},
+        {31, 0x0a, 154},
+        {41, 0x0a, 154},
+        {56, 0x0b, 154},
+        {3, 0x0a, 156},
+        {6, 0x0a, 156},
+        {10, 0x0a, 156},
+        {15, 0x0a, 156},
+        {24, 0x0a, 156},
+        {31, 0x0a, 156},
+        {41, 0x0a, 156},
+        {56, 0x0b, 156},
+    },
+    /* 129 */
+    {
+        {3, 0x0a, 160},
+        {6, 0x0a, 160},
+        {10, 0x0a, 160},
+        {15, 0x0a, 160},
+        {24, 0x0a, 160},
+        {31, 0x0a, 160},
+        {41, 0x0a, 160},
+        {56, 0x0b, 160},
+        {3, 0x0a, 163},
+        {6, 0x0a, 163},
+        {10, 0x0a, 163},
+        {15, 0x0a, 163},
+        {24, 0x0a, 163},
+        {31, 0x0a, 163},
+        {41, 0x0a, 163},
+        {56, 0x0b, 163},
+    },
+    /* 130 */
+    {
+        {2, 0x0a, 164},
+        {9, 0x0a, 164},
+        {23, 0x0a, 164},
+        {40, 0x0b, 164},
+        {2, 0x0a, 169},
+        {9, 0x0a, 169},
+        {23, 0x0a, 169},
+        {40, 0x0b, 169},
+        {2, 0x0a, 170},
+        {9, 0x0a, 170},
+        {23, 0x0a, 170},
+        {40, 0x0b, 170},
+        {2, 0x0a, 173},
+        {9, 0x0a, 173},
+        {23, 0x0a, 173},
+        {40, 0x0b, 173},
+    },
+    /* 131 */
+    {
+        {3, 0x0a, 164},
+        {6, 0x0a, 164},
+        {10, 0x0a, 164},
+        {15, 0x0a, 164},
+        {24, 0x0a, 164},
+        {31, 0x0a, 164},
+        {41, 0x0a, 164},
+        {56, 0x0b, 164},
+        {3, 0x0a, 169},
+        {6, 0x0a, 169},
+        {10, 0x0a, 169},
+        {15, 0x0a, 169},
+        {24, 0x0a, 169},
+        {31, 0x0a, 169},
+        {41, 0x0a, 169},
+        {56, 0x0b, 169},
+    },
+    /* 132 */
+    {
+        {3, 0x0a, 170},
+        {6, 0x0a, 170},
+        {10, 0x0a, 170},
+        {15, 0x0a, 170},
+        {24, 0x0a, 170},
+        {31, 0x0a, 170},
+        {41, 0x0a, 170},
+        {56, 0x0b, 170},
+        {3, 0x0a, 173},
+        {6, 0x0a, 173},
+        {10, 0x0a, 173},
+        {15, 0x0a, 173},
+        {24, 0x0a, 173},
+        {31, 0x0a, 173},
+        {41, 0x0a, 173},
+        {56, 0x0b, 173},
+    },
+    /* 133 */
+    {
+        {137, 0x00, 0},
+        {138, 0x00, 0},
+        {140, 0x00, 0},
+        {141, 0x00, 0},
+        {144, 0x00, 0},
+        {145, 0x00, 0},
+        {147, 0x00, 0},
+        {150, 0x00, 0},
+        {156, 0x00, 0},
+        {159, 0x00, 0},
+        {163, 0x00, 0},
+        {166, 0x00, 0},
+        {171, 0x00, 0},
+        {174, 0x00, 0},
+        {181, 0x00, 0},
+        {190, 0x00, 0},
+    },
+    /* 134 */
+    {
+        {0, 0x0b, 178},
+        {0, 0x0b, 181},
+        {0, 0x0b, 185},
+        {0, 0x0b, 186},
+        {0, 0x0b, 187},
+        {0, 0x0b, 189},
+        {0, 0x0b, 190},
+        {0, 0x0b, 196},
+        {0, 0x0b, 198},
+        {0, 0x0b, 228},
+        {0, 0x0b, 232},
+        {0, 0x0b, 233},
+        {148, 0x00, 0},
+        {149, 0x00, 0},
+        {151, 0x00, 0},
+        {152, 0x00, 0},
+    },
+    /* 135 */
+    {
+        {1, 0x0a, 178},
+        {22, 0x0b, 178},
+        {1, 0x0a, 181},
+        {22, 0x0b, 181},
+        {1, 0x0a, 185},
+        {22, 0x0b, 185},
+        {1, 0x0a, 186},
+        {22, 0x0b, 186},
+        {1, 0x0a, 187},
+        {22, 0x0b, 187},
+        {1, 0x0a, 189},
+        {22, 0x0b, 189},
+        {1, 0x0a, 190},
+        {22, 0x0b, 190},
+        {1, 0x0a, 196},
+        {22, 0x0b, 196},
+    },
+    /* 136 */
+    {
+        {2, 0x0a, 178},
+        {9, 0x0a, 178},
+        {23, 0x0a, 178},
+        {40, 0x0b, 178},
+        {2, 0x0a, 181},
+        {9, 0x0a, 181},
+        {23, 0x0a, 181},
+        {40, 0x0b, 181},
+        {2, 0x0a, 185},
+        {9, 0x0a, 185},
+        {23, 0x0a, 185},
+        {40, 0x0b, 185},
+        {2, 0x0a, 186},
+        {9, 0x0a, 186},
+        {23, 0x0a, 186},
+        {40, 0x0b, 186},
+    },
+    /* 137 */
+    {
+        {3, 0x0a, 178},
+        {6, 0x0a, 178},
+        {10, 0x0a, 178},
+        {15, 0x0a, 178},
+        {24, 0x0a, 178},
+        {31, 0x0a, 178},
+        {41, 0x0a, 178},
+        {56, 0x0b, 178},
+        {3, 0x0a, 181},
+        {6, 0x0a, 181},
+        {10, 0x0a, 181},
+        {15, 0x0a, 181},
+        {24, 0x0a, 181},
+        {31, 0x0a, 181},
+        {41, 0x0a, 181},
+        {56, 0x0b, 181},
+    },
+    /* 138 */
+    {
+        {3, 0x0a, 185},
+        {6, 0x0a, 185},
+        {10, 0x0a, 185},
+        {15, 0x0a, 185},
+        {24, 0x0a, 185},
+        {31, 0x0a, 185},
+        {41, 0x0a, 185},
+        {56, 0x0b, 185},
+        {3, 0x0a, 186},
+        {6, 0x0a, 186},
+        {10, 0x0a, 186},
+        {15, 0x0a, 186},
+        {24, 0x0a, 186},
+        {31, 0x0a, 186},
+        {41, 0x0a, 186},
+        {56, 0x0b, 186},
+    },
+    /* 139 */
+    {
+        {2, 0x0a, 187},
+        {9, 0x0a, 187},
+        {23, 0x0a, 187},
+        {40, 0x0b, 187},
+        {2, 0x0a, 189},
+        {9, 0x0a, 189},
+        {23, 0x0a, 189},
+        {40, 0x0b, 189},
+        {2, 0x0a, 190},
+        {9, 0x0a, 190},
+        {23, 0x0a, 190},
+        {40, 0x0b, 190},
+        {2, 0x0a, 196},
+        {9, 0x0a, 196},
+        {23, 0x0a, 196},
+        {40, 0x0b, 196},
+    },
+    /* 140 */
+    {
+        {3, 0x0a, 187},
+        {6, 0x0a, 187},
+        {10, 0x0a, 187},
+        {15, 0x0a, 187},
+        {24, 0x0a, 187},
+        {31, 0x0a, 187},
+        {41, 0x0a, 187},
+        {56, 0x0b, 187},
+        {3, 0x0a, 189},
+        {6, 0x0a, 189},
+        {10, 0x0a, 189},
+        {15, 0x0a, 189},
+        {24, 0x0a, 189},
+        {31, 0x0a, 189},
+        {41, 0x0a, 189},
+        {56, 0x0b, 189},
+    },
+    /* 141 */
+    {
+        {3, 0x0a, 190},
+        {6, 0x0a, 190},
+        {10, 0x0a, 190},
+        {15, 0x0a, 190},
+        {24, 0x0a, 190},
+        {31, 0x0a, 190},
+        {41, 0x0a, 190},
+        {56, 0x0b, 190},
+        {3, 0x0a, 196},
+        {6, 0x0a, 196},
+        {10, 0x0a, 196},
+        {15, 0x0a, 196},
+        {24, 0x0a, 196},
+        {31, 0x0a, 196},
+        {41, 0x0a, 196},
+        {56, 0x0b, 196},
+    },
+    /* 142 */
+    {
+        {1, 0x0a, 198},
+        {22, 0x0b, 198},
+        {1, 0x0a, 228},
+        {22, 0x0b, 228},
+        {1, 0x0a, 232},
+        {22, 0x0b, 232},
+        {1, 0x0a, 233},
+        {22, 0x0b, 233},
+        {0, 0x1b, 1},
+        {0, 0x0b, 135},
+        {0, 0x0b, 137},
+        {0, 0x0b, 138},
+        {0, 0x0b, 139},
+        {0, 0x0b, 140},
+        {0, 0x0b, 141},
+        {0, 0x0b, 143},
+    },
+    /* 143 */
+    {
+        {2, 0x0a, 198},
+        {9, 0x0a, 198},
+        {23, 0x0a, 198},
+        {40, 0x0b, 198},
+        {2, 0x0a, 228},
+        {9, 0x0a, 228},
+        {23, 0x0a, 228},
+        {40, 0x0b, 228},
+        {2, 0x0a, 232},
+        {9, 0x0a, 232},
+        {23, 0x0a, 232},
+        {40, 0x0b, 232},
+        {2, 0x0a, 233},
+        {9, 0x0a, 233},
+        {23, 0x0a, 233},
+        {40, 0x0b, 233},
+    },
+    /* 144 */
+    {
+        {3, 0x0a, 198},
+        {6, 0x0a, 198},
+        {10, 0x0a, 198},
+        {15, 0x0a, 198},
+        {24, 0x0a, 198},
+        {31, 0x0a, 198},
+        {41, 0x0a, 198},
+        {56, 0x0b, 198},
+        {3, 0x0a, 228},
+        {6, 0x0a, 228},
+        {10, 0x0a, 228},
+        {15, 0x0a, 228},
+        {24, 0x0a, 228},
+        {31, 0x0a, 228},
+        {41, 0x0a, 228},
+        {56, 0x0b, 228},
+    },
+    /* 145 */
+    {
+        {3, 0x0a, 232},
+        {6, 0x0a, 232},
+        {10, 0x0a, 232},
+        {15, 0x0a, 232},
+        {24, 0x0a, 232},
+        {31, 0x0a, 232},
+        {41, 0x0a, 232},
+        {56, 0x0b, 232},
+        {3, 0x0a, 233},
+        {6, 0x0a, 233},
+        {10, 0x0a, 233},
+        {15, 0x0a, 233},
+        {24, 0x0a, 233},
+        {31, 0x0a, 233},
+        {41, 0x0a, 233},
+        {56, 0x0b, 233},
+    },
+    /* 146 */
+    {
+        {1, 0x1a, 1},
+        {22, 0x1b, 1},
+        {1, 0x0a, 135},
+        {22, 0x0b, 135},
+        {1, 0x0a, 137},
+        {22, 0x0b, 137},
+        {1, 0x0a, 138},
+        {22, 0x0b, 138},
+        {1, 0x0a, 139},
+        {22, 0x0b, 139},
+        {1, 0x0a, 140},
+        {22, 0x0b, 140},
+        {1, 0x0a, 141},
+        {22, 0x0b, 141},
+        {1, 0x0a, 143},
+        {22, 0x0b, 143},
+    },
+    /* 147 */
+    {
+        {2, 0x1a, 1},
+        {9, 0x1a, 1},
+        {23, 0x1a, 1},
+        {40, 0x1b, 1},
+        {2, 0x0a, 135},
+        {9, 0x0a, 135},
+        {23, 0x0a, 135},
+        {40, 0x0b, 135},
+        {2, 0x0a, 137},
+        {9, 0x0a, 137},
+        {23, 0x0a, 137},
+        {40, 0x0b, 137},
+        {2, 0x0a, 138},
+        {9, 0x0a, 138},
+        {23, 0x0a, 138},
+        {40, 0x0b, 138},
+    },
+    /* 148 */
+    {
+        {3, 0x1a, 1},
+        {6, 0x1a, 1},
+        {10, 0x1a, 1},
+        {15, 0x1a, 1},
+        {24, 0x1a, 1},
+        {31, 0x1a, 1},
+        {41, 0x1a, 1},
+        {56, 0x1b, 1},
+        {3, 0x0a, 135},
+        {6, 0x0a, 135},
+        {10, 0x0a, 135},
+        {15, 0x0a, 135},
+        {24, 0x0a, 135},
+        {31, 0x0a, 135},
+        {41, 0x0a, 135},
+        {56, 0x0b, 135},
+    },
+    /* 149 */
+    {
+        {3, 0x0a, 137},
+        {6, 0x0a, 137},
+        {10, 0x0a, 137},
+        {15, 0x0a, 137},
+        {24, 0x0a, 137},
+        {31, 0x0a, 137},
+        {41, 0x0a, 137},
+        {56, 0x0b, 137},
+        {3, 0x0a, 138},
+        {6, 0x0a, 138},
+        {10, 0x0a, 138},
+        {15, 0x0a, 138},
+        {24, 0x0a, 138},
+        {31, 0x0a, 138},
+        {41, 0x0a, 138},
+        {56, 0x0b, 138},
+    },
+    /* 150 */
+    {
+        {2, 0x0a, 139},
+        {9, 0x0a, 139},
+        {23, 0x0a, 139},
+        {40, 0x0b, 139},
+        {2, 0x0a, 140},
+        {9, 0x0a, 140},
+        {23, 0x0a, 140},
+        {40, 0x0b, 140},
+        {2, 0x0a, 141},
+        {9, 0x0a, 141},
+        {23, 0x0a, 141},
+        {40, 0x0b, 141},
+        {2, 0x0a, 143},
+        {9, 0x0a, 143},
+        {23, 0x0a, 143},
+        {40, 0x0b, 143},
+    },
+    /* 151 */
+    {
+        {3, 0x0a, 139},
+        {6, 0x0a, 139},
+        {10, 0x0a, 139},
+        {15, 0x0a, 139},
+        {24, 0x0a, 139},
+        {31, 0x0a, 139},
+        {41, 0x0a, 139},
+        {56, 0x0b, 139},
+        {3, 0x0a, 140},
+        {6, 0x0a, 140},
+        {10, 0x0a, 140},
+        {15, 0x0a, 140},
+        {24, 0x0a, 140},
+        {31, 0x0a, 140},
+        {41, 0x0a, 140},
+        {56, 0x0b, 140},
+    },
+    /* 152 */
+    {
+        {3, 0x0a, 141},
+        {6, 0x0a, 141},
+        {10, 0x0a, 141},
+        {15, 0x0a, 141},
+        {24, 0x0a, 141},
+        {31, 0x0a, 141},
+        {41, 0x0a, 141},
+        {56, 0x0b, 141},
+        {3, 0x0a, 143},
+        {6, 0x0a, 143},
+        {10, 0x0a, 143},
+        {15, 0x0a, 143},
+        {24, 0x0a, 143},
+        {31, 0x0a, 143},
+        {41, 0x0a, 143},
+        {56, 0x0b, 143},
+    },
+    /* 153 */
+    {
+        {157, 0x00, 0},
+        {158, 0x00, 0},
+        {160, 0x00, 0},
+        {161, 0x00, 0},
+        {164, 0x00, 0},
+        {165, 0x00, 0},
+        {167, 0x00, 0},
+        {168, 0x00, 0},
+        {172, 0x00, 0},
+        {173, 0x00, 0},
+        {175, 0x00, 0},
+        {177, 0x00, 0},
+        {182, 0x00, 0},
+        {185, 0x00, 0},
+        {191, 0x00, 0},
+        {207, 0x00, 0},
+    },
+    /* 154 */
+    {
+        {0, 0x0b, 147},
+        {0, 0x0b, 149},
+        {0, 0x0b, 150},
+        {0, 0x0b, 151},
+        {0, 0x0b, 152},
+        {0, 0x0b, 155},
+        {0, 0x0b, 157},
+        {0, 0x0b, 158},
+        {0, 0x0b, 165},
+        {0, 0x0b, 166},
+        {0, 0x0b, 168},
+        {0, 0x0b, 174},
+        {0, 0x0b, 175},
+        {0, 0x0b, 180},
+        {0, 0x0b, 182},
+        {0, 0x0b, 183},
+    },
+    /* 155 */
+    {
+        {1, 0x0a, 147},
+        {22, 0x0b, 147},
+        {1, 0x0a, 149},
+        {22, 0x0b, 149},
+        {1, 0x0a, 150},
+        {22, 0x0b, 150},
+        {1, 0x0a, 151},
+        {22, 0x0b, 151},
+        {1, 0x0a, 152},
+        {22, 0x0b, 152},
+        {1, 0x0a, 155},
+        {22, 0x0b, 155},
+        {1, 0x0a, 157},
+        {22, 0x0b, 157},
+        {1, 0x0a, 158},
+        {22, 0x0b, 158},
+    },
+    /* 156 */
+    {
+        {2, 0x0a, 147},
+        {9, 0x0a, 147},
+        {23, 0x0a, 147},
+        {40, 0x0b, 147},
+        {2, 0x0a, 149},
+        {9, 0x0a, 149},
+        {23, 0x0a, 149},
+        {40, 0x0b, 149},
+        {2, 0x0a, 150},
+        {9, 0x0a, 150},
+        {23, 0x0a, 150},
+        {40, 0x0b, 150},
+        {2, 0x0a, 151},
+        {9, 0x0a, 151},
+        {23, 0x0a, 151},
+        {40, 0x0b, 151},
+    },
+    /* 157 */
+    {
+        {3, 0x0a, 147},
+        {6, 0x0a, 147},
+        {10, 0x0a, 147},
+        {15, 0x0a, 147},
+        {24, 0x0a, 147},
+        {31, 0x0a, 147},
+        {41, 0x0a, 147},
+        {56, 0x0b, 147},
+        {3, 0x0a, 149},
+        {6, 0x0a, 149},
+        {10, 0x0a, 149},
+        {15, 0x0a, 149},
+        {24, 0x0a, 149},
+        {31, 0x0a, 149},
+        {41, 0x0a, 149},
+        {56, 0x0b, 149},
+    },
+    /* 158 */
+    {
+        {3, 0x0a, 150},
+        {6, 0x0a, 150},
+        {10, 0x0a, 150},
+        {15, 0x0a, 150},
+        {24, 0x0a, 150},
+        {31, 0x0a, 150},
+        {41, 0x0a, 150},
+        {56, 0x0b, 150},
+        {3, 0x0a, 151},
+        {6, 0x0a, 151},
+        {10, 0x0a, 151},
+        {15, 0x0a, 151},
+        {24, 0x0a, 151},
+        {31, 0x0a, 151},
+        {41, 0x0a, 151},
+        {56, 0x0b, 151},
+    },
+    /* 159 */
+    {
+        {2, 0x0a, 152},
+        {9, 0x0a, 152},
+        {23, 0x0a, 152},
+        {40, 0x0b, 152},
+        {2, 0x0a, 155},
+        {9, 0x0a, 155},
+        {23, 0x0a, 155},
+        {40, 0x0b, 155},
+        {2, 0x0a, 157},
+        {9, 0x0a, 157},
+        {23, 0x0a, 157},
+        {40, 0x0b, 157},
+        {2, 0x0a, 158},
+        {9, 0x0a, 158},
+        {23, 0x0a, 158},
+        {40, 0x0b, 158},
+    },
+    /* 160 */
+    {
+        {3, 0x0a, 152},
+        {6, 0x0a, 152},
+        {10, 0x0a, 152},
+        {15, 0x0a, 152},
+        {24, 0x0a, 152},
+        {31, 0x0a, 152},
+        {41, 0x0a, 152},
+        {56, 0x0b, 152},
+        {3, 0x0a, 155},
+        {6, 0x0a, 155},
+        {10, 0x0a, 155},
+        {15, 0x0a, 155},
+        {24, 0x0a, 155},
+        {31, 0x0a, 155},
+        {41, 0x0a, 155},
+        {56, 0x0b, 155},
+    },
+    /* 161 */
+    {
+        {3, 0x0a, 157},
+        {6, 0x0a, 157},
+        {10, 0x0a, 157},
+        {15, 0x0a, 157},
+        {24, 0x0a, 157},
+        {31, 0x0a, 157},
+        {41, 0x0a, 157},
+        {56, 0x0b, 157},
+        {3, 0x0a, 158},
+        {6, 0x0a, 158},
+        {10, 0x0a, 158},
+        {15, 0x0a, 158},
+        {24, 0x0a, 158},
+        {31, 0x0a, 158},
+        {41, 0x0a, 158},
+        {56, 0x0b, 158},
+    },
+    /* 162 */
+    {
+        {1, 0x0a, 165},
+        {22, 0x0b, 165},
+        {1, 0x0a, 166},
+        {22, 0x0b, 166},
+        {1, 0x0a, 168},
+        {22, 0x0b, 168},
+        {1, 0x0a, 174},
+        {22, 0x0b, 174},
+        {1, 0x0a, 175},
+        {22, 0x0b, 175},
+        {1, 0x0a, 180},
+        {22, 0x0b, 180},
+        {1, 0x0a, 182},
+        {22, 0x0b, 182},
+        {1, 0x0a, 183},
+        {22, 0x0b, 183},
+    },
+    /* 163 */
+    {
+        {2, 0x0a, 165},
+        {9, 0x0a, 165},
+        {23, 0x0a, 165},
+        {40, 0x0b, 165},
+        {2, 0x0a, 166},
+        {9, 0x0a, 166},
+        {23, 0x0a, 166},
+        {40, 0x0b, 166},
+        {2, 0x0a, 168},
+        {9, 0x0a, 168},
+        {23, 0x0a, 168},
+        {40, 0x0b, 168},
+        {2, 0x0a, 174},
+        {9, 0x0a, 174},
+        {23, 0x0a, 174},
+        {40, 0x0b, 174},
+    },
+    /* 164 */
+    {
+        {3, 0x0a, 165},
+        {6, 0x0a, 165},
+        {10, 0x0a, 165},
+        {15, 0x0a, 165},
+        {24, 0x0a, 165},
+        {31, 0x0a, 165},
+        {41, 0x0a, 165},
+        {56, 0x0b, 165},
+        {3, 0x0a, 166},
+        {6, 0x0a, 166},
+        {10, 0x0a, 166},
+        {15, 0x0a, 166},
+        {24, 0x0a, 166},
+        {31, 0x0a, 166},
+        {41, 0x0a, 166},
+        {56, 0x0b, 166},
+    },
+    /* 165 */
+    {
+        {3, 0x0a, 168},
+        {6, 0x0a, 168},
+        {10, 0x0a, 168},
+        {15, 0x0a, 168},
+        {24, 0x0a, 168},
+        {31, 0x0a, 168},
+        {41, 0x0a, 168},
+        {56, 0x0b, 168},
+        {3, 0x0a, 174},
+        {6, 0x0a, 174},
+        {10, 0x0a, 174},
+        {15, 0x0a, 174},
+        {24, 0x0a, 174},
+        {31, 0x0a, 174},
+        {41, 0x0a, 174},
+        {56, 0x0b, 174},
+    },
+    /* 166 */
+    {
+        {2, 0x0a, 175},
+        {9, 0x0a, 175},
+        {23, 0x0a, 175},
+        {40, 0x0b, 175},
+        {2, 0x0a, 180},
+        {9, 0x0a, 180},
+        {23, 0x0a, 180},
+        {40, 0x0b, 180},
+        {2, 0x0a, 182},
+        {9, 0x0a, 182},
+        {23, 0x0a, 182},
+        {40, 0x0b, 182},
+        {2, 0x0a, 183},
+        {9, 0x0a, 183},
+        {23, 0x0a, 183},
+        {40, 0x0b, 183},
+    },
+    /* 167 */
+    {
+        {3, 0x0a, 175},
+        {6, 0x0a, 175},
+        {10, 0x0a, 175},
+        {15, 0x0a, 175},
+        {24, 0x0a, 175},
+        {31, 0x0a, 175},
+        {41, 0x0a, 175},
+        {56, 0x0b, 175},
+        {3, 0x0a, 180},
+        {6, 0x0a, 180},
+        {10, 0x0a, 180},
+        {15, 0x0a, 180},
+        {24, 0x0a, 180},
+        {31, 0x0a, 180},
+        {41, 0x0a, 180},
+        {56, 0x0b, 180},
+    },
+    /* 168 */
+    {
+        {3, 0x0a, 182},
+        {6, 0x0a, 182},
+        {10, 0x0a, 182},
+        {15, 0x0a, 182},
+        {24, 0x0a, 182},
+        {31, 0x0a, 182},
+        {41, 0x0a, 182},
+        {56, 0x0b, 182},
+        {3, 0x0a, 183},
+        {6, 0x0a, 183},
+        {10, 0x0a, 183},
+        {15, 0x0a, 183},
+        {24, 0x0a, 183},
+        {31, 0x0a, 183},
+        {41, 0x0a, 183},
+        {56, 0x0b, 183},
+    },
+    /* 169 */
+    {
+        {0, 0x0b, 188},
+        {0, 0x0b, 191},
+        {0, 0x0b, 197},
+        {0, 0x0b, 231},
+        {0, 0x0b, 239},
+        {176, 0x00, 0},
+        {178, 0x00, 0},
+        {179, 0x00, 0},
+        {183, 0x00, 0},
+        {184, 0x00, 0},
+        {186, 0x00, 0},
+        {187, 0x00, 0},
+        {192, 0x00, 0},
+        {199, 0x00, 0},
+        {208, 0x00, 0},
+        {223, 0x00, 0},
+    },
+    /* 170 */
+    {
+        {1, 0x0a, 188},
+        {22, 0x0b, 188},
+        {1, 0x0a, 191},
+        {22, 0x0b, 191},
+        {1, 0x0a, 197},
+        {22, 0x0b, 197},
+        {1, 0x0a, 231},
+        {22, 0x0b, 231},
+        {1, 0x0a, 239},
+        {22, 0x0b, 239},
+        {0, 0x0b, 9},
+        {0, 0x0b, 142},
+        {0, 0x0b, 144},
+        {0, 0x0b, 145},
+        {0, 0x0b, 148},
+        {0, 0x0b, 159},
+    },
+    /* 171 */
+    {
+        {2, 0x0a, 188},
+        {9, 0x0a, 188},
+        {23, 0x0a, 188},
+        {40, 0x0b, 188},
+        {2, 0x0a, 191},
+        {9, 0x0a, 191},
+        {23, 0x0a, 191},
+        {40, 0x0b, 191},
+        {2, 0x0a, 197},
+        {9, 0x0a, 197},
+        {23, 0x0a, 197},
+        {40, 0x0b, 197},
+        {2, 0x0a, 231},
+        {9, 0x0a, 231},
+        {23, 0x0a, 231},
+        {40, 0x0b, 231},
+    },
+    /* 172 */
+    {
+        {3, 0x0a, 188},
+        {6, 0x0a, 188},
+        {10, 0x0a, 188},
+        {15, 0x0a, 188},
+        {24, 0x0a, 188},
+        {31, 0x0a, 188},
+        {41, 0x0a, 188},
+        {56, 0x0b, 188},
+        {3, 0x0a, 191},
+        {6, 0x0a, 191},
+        {10, 0x0a, 191},
+        {15, 0x0a, 191},
+        {24, 0x0a, 191},
+        {31, 0x0a, 191},
+        {41, 0x0a, 191},
+        {56, 0x0b, 191},
+    },
+    /* 173 */
+    {
+        {3, 0x0a, 197},
+        {6, 0x0a, 197},
+        {10, 0x0a, 197},
+        {15, 0x0a, 197},
+        {24, 0x0a, 197},
+        {31, 0x0a, 197},
+        {41, 0x0a, 197},
+        {56, 0x0b, 197},
+        {3, 0x0a, 231},
+        {6, 0x0a, 231},
+        {10, 0x0a, 231},
+        {15, 0x0a, 231},
+        {24, 0x0a, 231},
+        {31, 0x0a, 231},
+        {41, 0x0a, 231},
+        {56, 0x0b, 231},
+    },
+    /* 174 */
+    {
+        {2, 0x0a, 239},
+        {9, 0x0a, 239},
+        {23, 0x0a, 239},
+        {40, 0x0b, 239},
+        {1, 0x0a, 9},
+        {22, 0x0b, 9},
+        {1, 0x0a, 142},
+        {22, 0x0b, 142},
+        {1, 0x0a, 144},
+        {22, 0x0b, 144},
+        {1, 0x0a, 145},
+        {22, 0x0b, 145},
+        {1, 0x0a, 148},
+        {22, 0x0b, 148},
+        {1, 0x0a, 159},
+        {22, 0x0b, 159},
+    },
+    /* 175 */
+    {
+        {3, 0x0a, 239},
+        {6, 0x0a, 239},
+        {10, 0x0a, 239},
+        {15, 0x0a, 239},
+        {24, 0x0a, 239},
+        {31, 0x0a, 239},
+        {41, 0x0a, 239},
+        {56, 0x0b, 239},
+        {2, 0x0a, 9},
+        {9, 0x0a, 9},
+        {23, 0x0a, 9},
+        {40, 0x0b, 9},
+        {2, 0x0a, 142},
+        {9, 0x0a, 142},
+        {23, 0x0a, 142},
+        {40, 0x0b, 142},
+    },
+    /* 176 */
+    {
+        {3, 0x0a, 9},
+        {6, 0x0a, 9},
+        {10, 0x0a, 9},
+        {15, 0x0a, 9},
+        {24, 0x0a, 9},
+        {31, 0x0a, 9},
+        {41, 0x0a, 9},
+        {56, 0x0b, 9},
+        {3, 0x0a, 142},
+        {6, 0x0a, 142},
+        {10, 0x0a, 142},
+        {15, 0x0a, 142},
+        {24, 0x0a, 142},
+        {31, 0x0a, 142},
+        {41, 0x0a, 142},
+        {56, 0x0b, 142},
+    },
+    /* 177 */
+    {
+        {2, 0x0a, 144},
+        {9, 0x0a, 144},
+        {23, 0x0a, 144},
+        {40, 0x0b, 144},
+        {2, 0x0a, 145},
+        {9, 0x0a, 145},
+        {23, 0x0a, 145},
+        {40, 0x0b, 145},
+        {2, 0x0a, 148},
+        {9, 0x0a, 148},
+        {23, 0x0a, 148},
+        {40, 0x0b, 148},
+        {2, 0x0a, 159},
+        {9, 0x0a, 159},
+        {23, 0x0a, 159},
+        {40, 0x0b, 159},
+    },
+    /* 178 */
+    {
+        {3, 0x0a, 144},
+        {6, 0x0a, 144},
+        {10, 0x0a, 144},
+        {15, 0x0a, 144},
+        {24, 0x0a, 144},
+        {31, 0x0a, 144},
+        {41, 0x0a, 144},
+        {56, 0x0b, 144},
+        {3, 0x0a, 145},
+        {6, 0x0a, 145},
+        {10, 0x0a, 145},
+        {15, 0x0a, 145},
+        {24, 0x0a, 145},
+        {31, 0x0a, 145},
+        {41, 0x0a, 145},
+        {56, 0x0b, 145},
+    },
+    /* 179 */
+    {
+        {3, 0x0a, 148},
+        {6, 0x0a, 148},
+        {10, 0x0a, 148},
+        {15, 0x0a, 148},
+        {24, 0x0a, 148},
+        {31, 0x0a, 148},
+        {41, 0x0a, 148},
+        {56, 0x0b, 148},
+        {3, 0x0a, 159},
+        {6, 0x0a, 159},
+        {10, 0x0a, 159},
+        {15, 0x0a, 159},
+        {24, 0x0a, 159},
+        {31, 0x0a, 159},
+        {41, 0x0a, 159},
+        {56, 0x0b, 159},
+    },
+    /* 180 */
+    {
+        {0, 0x0b, 171},
+        {0, 0x0b, 206},
+        {0, 0x0b, 215},
+        {0, 0x0b, 225},
+        {0, 0x0b, 236},
+        {0, 0x0b, 237},
+        {188, 0x00, 0},
+        {189, 0x00, 0},
+        {193, 0x00, 0},
+        {196, 0x00, 0},
+        {200, 0x00, 0},
+        {203, 0x00, 0},
+        {209, 0x00, 0},
+        {216, 0x00, 0},
+        {224, 0x00, 0},
+        {238, 0x00, 0},
+    },
+    /* 181 */
+    {
+        {1, 0x0a, 171},
+        {22, 0x0b, 171},
+        {1, 0x0a, 206},
+        {22, 0x0b, 206},
+        {1, 0x0a, 215},
+        {22, 0x0b, 215},
+        {1, 0x0a, 225},
+        {22, 0x0b, 225},
+        {1, 0x0a, 236},
+        {22, 0x0b, 236},
+        {1, 0x0a, 237},
+        {22, 0x0b, 237},
+        {0, 0x0b, 199},
+        {0, 0x0b, 207},
+        {0, 0x0b, 234},
+        {0, 0x0b, 235},
+    },
+    /* 182 */
+    {
+        {2, 0x0a, 171},
+        {9, 0x0a, 171},
+        {23, 0x0a, 171},
+        {40, 0x0b, 171},
+        {2, 0x0a, 206},
+        {9, 0x0a, 206},
+        {23, 0x0a, 206},
+        {40, 0x0b, 206},
+        {2, 0x0a, 215},
+        {9, 0x0a, 215},
+        {23, 0x0a, 215},
+        {40, 0x0b, 215},
+        {2, 0x0a, 225},
+        {9, 0x0a, 225},
+        {23, 0x0a, 225},
+        {40, 0x0b, 225},
+    },
+    /* 183 */
+    {
+        {3, 0x0a, 171},
+        {6, 0x0a, 171},
+        {10, 0x0a, 171},
+        {15, 0x0a, 171},
+        {24, 0x0a, 171},
+        {31, 0x0a, 171},
+        {41, 0x0a, 171},
+        {56, 0x0b, 171},
+        {3, 0x0a, 206},
+        {6, 0x0a, 206},
+        {10, 0x0a, 206},
+        {15, 0x0a, 206},
+        {24, 0x0a, 206},
+        {31, 0x0a, 206},
+        {41, 0x0a, 206},
+        {56, 0x0b, 206},
+    },
+    /* 184 */
+    {
+        {3, 0x0a, 215},
+        {6, 0x0a, 215},
+        {10, 0x0a, 215},
+        {15, 0x0a, 215},
+        {24, 0x0a, 215},
+        {31, 0x0a, 215},
+        {41, 0x0a, 215},
+        {56, 0x0b, 215},
+        {3, 0x0a, 225},
+        {6, 0x0a, 225},
+        {10, 0x0a, 225},
+        {15, 0x0a, 225},
+        {24, 0x0a, 225},
+        {31, 0x0a, 225},
+        {41, 0x0a, 225},
+        {56, 0x0b, 225},
+    },
+    /* 185 */
+    {
+        {2, 0x0a, 236},
+        {9, 0x0a, 236},
+        {23, 0x0a, 236},
+        {40, 0x0b, 236},
+        {2, 0x0a, 237},
+        {9, 0x0a, 237},
+        {23, 0x0a, 237},
+        {40, 0x0b, 237},
+        {1, 0x0a, 199},
+        {22, 0x0b, 199},
+        {1, 0x0a, 207},
+        {22, 0x0b, 207},
+        {1, 0x0a, 234},
+        {22, 0x0b, 234},
+        {1, 0x0a, 235},
+        {22, 0x0b, 235},
+    },
+    /* 186 */
+    {
+        {3, 0x0a, 236},
+        {6, 0x0a, 236},
+        {10, 0x0a, 236},
+        {15, 0x0a, 236},
+        {24, 0x0a, 236},
+        {31, 0x0a, 236},
+        {41, 0x0a, 236},
+        {56, 0x0b, 236},
+        {3, 0x0a, 237},
+        {6, 0x0a, 237},
+        {10, 0x0a, 237},
+        {15, 0x0a, 237},
+        {24, 0x0a, 237},
+        {31, 0x0a, 237},
+        {41, 0x0a, 237},
+        {56, 0x0b, 237},
+    },
+    /* 187 */
+    {
+        {2, 0x0a, 199},
+        {9, 0x0a, 199},
+        {23, 0x0a, 199},
+        {40, 0x0b, 199},
+        {2, 0x0a, 207},
+        {9, 0x0a, 207},
+        {23, 0x0a, 207},
+        {40, 0x0b, 207},
+        {2, 0x0a, 234},
+        {9, 0x0a, 234},
+        {23, 0x0a, 234},
+        {40, 0x0b, 234},
+        {2, 0x0a, 235},
+        {9, 0x0a, 235},
+        {23, 0x0a, 235},
+        {40, 0x0b, 235},
+    },
+    /* 188 */
+    {
+        {3, 0x0a, 199},
+        {6, 0x0a, 199},
+        {10, 0x0a, 199},
+        {15, 0x0a, 199},
+        {24, 0x0a, 199},
+        {31, 0x0a, 199},
+        {41, 0x0a, 199},
+        {56, 0x0b, 199},
+        {3, 0x0a, 207},
+        {6, 0x0a, 207},
+        {10, 0x0a, 207},
+        {15, 0x0a, 207},
+        {24, 0x0a, 207},
+        {31, 0x0a, 207},
+        {41, 0x0a, 207},
+        {56, 0x0b, 207},
+    },
+    /* 189 */
+    {
+        {3, 0x0a, 234},
+        {6, 0x0a, 234},
+        {10, 0x0a, 234},
+        {15, 0x0a, 234},
+        {24, 0x0a, 234},
+        {31, 0x0a, 234},
+        {41, 0x0a, 234},
+        {56, 0x0b, 234},
+        {3, 0x0a, 235},
+        {6, 0x0a, 235},
+        {10, 0x0a, 235},
+        {15, 0x0a, 235},
+        {24, 0x0a, 235},
+        {31, 0x0a, 235},
+        {41, 0x0a, 235},
+        {56, 0x0b, 235},
+    },
+    /* 190 */
+    {
+        {194, 0x00, 0},
+        {195, 0x00, 0},
+        {197, 0x00, 0},
+        {198, 0x00, 0},
+        {201, 0x00, 0},
+        {202, 0x00, 0},
+        {204, 0x00, 0},
+        {205, 0x00, 0},
+        {210, 0x00, 0},
+        {213, 0x00, 0},
+        {217, 0x00, 0},
+        {220, 0x00, 0},
+        {225, 0x00, 0},
+        {231, 0x00, 0},
+        {239, 0x00, 0},
+        {246, 0x00, 0},
+    },
+    /* 191 */
+    {
+        {0, 0x0b, 192},
+        {0, 0x0b, 193},
+        {0, 0x0b, 200},
+        {0, 0x0b, 201},
+        {0, 0x0b, 202},
+        {0, 0x0b, 205},
+        {0, 0x0b, 210},
+        {0, 0x0b, 213},
+        {0, 0x0b, 218},
+        {0, 0x0b, 219},
+        {0, 0x0b, 238},
+        {0, 0x0b, 240},
+        {0, 0x0b, 242},
+        {0, 0x0b, 243},
+        {0, 0x0b, 255},
+        {206, 0x00, 0},
+    },
+    /* 192 */
+    {
+        {1, 0x0a, 192},
+        {22, 0x0b, 192},
+        {1, 0x0a, 193},
+        {22, 0x0b, 193},
+        {1, 0x0a, 200},
+        {22, 0x0b, 200},
+        {1, 0x0a, 201},
+        {22, 0x0b, 201},
+        {1, 0x0a, 202},
+        {22, 0x0b, 202},
+        {1, 0x0a, 205},
+        {22, 0x0b, 205},
+        {1, 0x0a, 210},
+        {22, 0x0b, 210},
+        {1, 0x0a, 213},
+        {22, 0x0b, 213},
+    },
+    /* 193 */
+    {
+        {2, 0x0a, 192},
+        {9, 0x0a, 192},
+        {23, 0x0a, 192},
+        {40, 0x0b, 192},
+        {2, 0x0a, 193},
+        {9, 0x0a, 193},
+        {23, 0x0a, 193},
+        {40, 0x0b, 193},
+        {2, 0x0a, 200},
+        {9, 0x0a, 200},
+        {23, 0x0a, 200},
+        {40, 0x0b, 200},
+        {2, 0x0a, 201},
+        {9, 0x0a, 201},
+        {23, 0x0a, 201},
+        {40, 0x0b, 201},
+    },
+    /* 194 */
+    {
+        {3, 0x0a, 192},
+        {6, 0x0a, 192},
+        {10, 0x0a, 192},
+        {15, 0x0a, 192},
+        {24, 0x0a, 192},
+        {31, 0x0a, 192},
+        {41, 0x0a, 192},
+        {56, 0x0b, 192},
+        {3, 0x0a, 193},
+        {6, 0x0a, 193},
+        {10, 0x0a, 193},
+        {15, 0x0a, 193},
+        {24, 0x0a, 193},
+        {31, 0x0a, 193},
+        {41, 0x0a, 193},
+        {56, 0x0b, 193},
+    },
+    /* 195 */
+    {
+        {3, 0x0a, 200},
+        {6, 0x0a, 200},
+        {10, 0x0a, 200},
+        {15, 0x0a, 200},
+        {24, 0x0a, 200},
+        {31, 0x0a, 200},
+        {41, 0x0a, 200},
+        {56, 0x0b, 200},
+        {3, 0x0a, 201},
+        {6, 0x0a, 201},
+        {10, 0x0a, 201},
+        {15, 0x0a, 201},
+        {24, 0x0a, 201},
+        {31, 0x0a, 201},
+        {41, 0x0a, 201},
+        {56, 0x0b, 201},
+    },
+    /* 196 */
+    {
+        {2, 0x0a, 202},
+        {9, 0x0a, 202},
+        {23, 0x0a, 202},
+        {40, 0x0b, 202},
+        {2, 0x0a, 205},
+        {9, 0x0a, 205},
+        {23, 0x0a, 205},
+        {40, 0x0b, 205},
+        {2, 0x0a, 210},
+        {9, 0x0a, 210},
+        {23, 0x0a, 210},
+        {40, 0x0b, 210},
+        {2, 0x0a, 213},
+        {9, 0x0a, 213},
+        {23, 0x0a, 213},
+        {40, 0x0b, 213},
+    },
+    /* 197 */
+    {
+        {3, 0x0a, 202},
+        {6, 0x0a, 202},
+        {10, 0x0a, 202},
+        {15, 0x0a, 202},
+        {24, 0x0a, 202},
+        {31, 0x0a, 202},
+        {41, 0x0a, 202},
+        {56, 0x0b, 202},
+        {3, 0x0a, 205},
+        {6, 0x0a, 205},
+        {10, 0x0a, 205},
+        {15, 0x0a, 205},
+        {24, 0x0a, 205},
+        {31, 0x0a, 205},
+        {41, 0x0a, 205},
+        {56, 0x0b, 205},
+    },
+    /* 198 */
+    {
+        {3, 0x0a, 210},
+        {6, 0x0a, 210},
+        {10, 0x0a, 210},
+        {15, 0x0a, 210},
+        {24, 0x0a, 210},
+        {31, 0x0a, 210},
+        {41, 0x0a, 210},
+        {56, 0x0b, 210},
+        {3, 0x0a, 213},
+        {6, 0x0a, 213},
+        {10, 0x0a, 213},
+        {15, 0x0a, 213},
+        {24, 0x0a, 213},
+        {31, 0x0a, 213},
+        {41, 0x0a, 213},
+        {56, 0x0b, 213},
+    },
+    /* 199 */
+    {
+        {1, 0x0a, 218},
+        {22, 0x0b, 218},
+        {1, 0x0a, 219},
+        {22, 0x0b, 219},
+        {1, 0x0a, 238},
+        {22, 0x0b, 238},
+        {1, 0x0a, 240},
+        {22, 0x0b, 240},
+        {1, 0x0a, 242},
+        {22, 0x0b, 242},
+        {1, 0x0a, 243},
+        {22, 0x0b, 243},
+        {1, 0x0a, 255},
+        {22, 0x0b, 255},
+        {0, 0x0b, 203},
+        {0, 0x0b, 204},
+    },
+    /* 200 */
+    {
+        {2, 0x0a, 218},
+        {9, 0x0a, 218},
+        {23, 0x0a, 218},
+        {40, 0x0b, 218},
+        {2, 0x0a, 219},
+        {9, 0x0a, 219},
+        {23, 0x0a, 219},
+        {40, 0x0b, 219},
+        {2, 0x0a, 238},
+        {9, 0x0a, 238},
+        {23, 0x0a, 238},
+        {40, 0x0b, 238},
+        {2, 0x0a, 240},
+        {9, 0x0a, 240},
+        {23, 0x0a, 240},
+        {40, 0x0b, 240},
+    },
+    /* 201 */
+    {
+        {3, 0x0a, 218},
+        {6, 0x0a, 218},
+        {10, 0x0a, 218},
+        {15, 0x0a, 218},
+        {24, 0x0a, 218},
+        {31, 0x0a, 218},
+        {41, 0x0a, 218},
+        {56, 0x0b, 218},
+        {3, 0x0a, 219},
+        {6, 0x0a, 219},
+        {10, 0x0a, 219},
+        {15, 0x0a, 219},
+        {24, 0x0a, 219},
+        {31, 0x0a, 219},
+        {41, 0x0a, 219},
+        {56, 0x0b, 219},
+    },
+    /* 202 */
+    {
+        {3, 0x0a, 238},
+        {6, 0x0a, 238},
+        {10, 0x0a, 238},
+        {15, 0x0a, 238},
+        {24, 0x0a, 238},
+        {31, 0x0a, 238},
+        {41, 0x0a, 238},
+        {56, 0x0b, 238},
+        {3, 0x0a, 240},
+        {6, 0x0a, 240},
+        {10, 0x0a, 240},
+        {15, 0x0a, 240},
+        {24, 0x0a, 240},
+        {31, 0x0a, 240},
+        {41, 0x0a, 240},
+        {56, 0x0b, 240},
+    },
+    /* 203 */
+    {
+        {2, 0x0a, 242},
+        {9, 0x0a, 242},
+        {23, 0x0a, 242},
+        {40, 0x0b, 242},
+        {2, 0x0a, 243},
+        {9, 0x0a, 243},
+        {23, 0x0a, 243},
+        {40, 0x0b, 243},
+        {2, 0x0a, 255},
+        {9, 0x0a, 255},
+        {23, 0x0a, 255},
+        {40, 0x0b, 255},
+        {1, 0x0a, 203},
+        {22, 0x0b, 203},
+        {1, 0x0a, 204},
+        {22, 0x0b, 204},
+    },
+    /* 204 */
+    {
+        {3, 0x0a, 242},
+        {6, 0x0a, 242},
+        {10, 0x0a, 242},
+        {15, 0x0a, 242},
+        {24, 0x0a, 242},
+        {31, 0x0a, 242},
+        {41, 0x0a, 242},
+        {56, 0x0b, 242},
+        {3, 0x0a, 243},
+        {6, 0x0a, 243},
+        {10, 0x0a, 243},
+        {15, 0x0a, 243},
+        {24, 0x0a, 243},
+        {31, 0x0a, 243},
+        {41, 0x0a, 243},
+        {56, 0x0b, 243},
+    },
+    /* 205 */
+    {
+        {3, 0x0a, 255},
+        {6, 0x0a, 255},
+        {10, 0x0a, 255},
+        {15, 0x0a, 255},
+        {24, 0x0a, 255},
+        {31, 0x0a, 255},
+        {41, 0x0a, 255},
+        {56, 0x0b, 255},
+        {2, 0x0a, 203},
+        {9, 0x0a, 203},
+        {23, 0x0a, 203},
+        {40, 0x0b, 203},
+        {2, 0x0a, 204},
+        {9, 0x0a, 204},
+        {23, 0x0a, 204},
+        {40, 0x0b, 204},
+    },
+    /* 206 */
+    {
+        {3, 0x0a, 203},
+        {6, 0x0a, 203},
+        {10, 0x0a, 203},
+        {15, 0x0a, 203},
+        {24, 0x0a, 203},
+        {31, 0x0a, 203},
+        {41, 0x0a, 203},
+        {56, 0x0b, 203},
+        {3, 0x0a, 204},
+        {6, 0x0a, 204},
+        {10, 0x0a, 204},
+        {15, 0x0a, 204},
+        {24, 0x0a, 204},
+        {31, 0x0a, 204},
+        {41, 0x0a, 204},
+        {56, 0x0b, 204},
+    },
+    /* 207 */
+    {
+        {211, 0x00, 0},
+        {212, 0x00, 0},
+        {214, 0x00, 0},
+        {215, 0x00, 0},
+        {218, 0x00, 0},
+        {219, 0x00, 0},
+        {221, 0x00, 0},
+        {222, 0x00, 0},
+        {226, 0x00, 0},
+        {228, 0x00, 0},
+        {232, 0x00, 0},
+        {235, 0x00, 0},
+        {240, 0x00, 0},
+        {243, 0x00, 0},
+        {247, 0x00, 0},
+        {250, 0x00, 0},
+    },
+    /* 208 */
+    {
+        {0, 0x0b, 211},
+        {0, 0x0b, 212},
+        {0, 0x0b, 214},
+        {0, 0x0b, 221},
+        {0, 0x0b, 222},
+        {0, 0x0b, 223},
+        {0, 0x0b, 241},
+        {0, 0x0b, 244},
+        {0, 0x0b, 245},
+        {0, 0x0b, 246},
+        {0, 0x0b, 247},
+        {0, 0x0b, 248},
+        {0, 0x0b, 250},
+        {0, 0x0b, 251},
+        {0, 0x0b, 252},
+        {0, 0x0b, 253},
+    },
+    /* 209 */
+    {
+        {1, 0x0a, 211},
+        {22, 0x0b, 211},
+        {1, 0x0a, 212},
+        {22, 0x0b, 212},
+        {1, 0x0a, 214},
+        {22, 0x0b, 214},
+        {1, 0x0a, 221},
+        {22, 0x0b, 221},
+        {1, 0x0a, 222},
+        {22, 0x0b, 222},
+        {1, 0x0a, 223},
+        {22, 0x0b, 223},
+        {1, 0x0a, 241},
+        {22, 0x0b, 241},
+        {1, 0x0a, 244},
+        {22, 0x0b, 244},
+    },
+    /* 210 */
+    {
+        {2, 0x0a, 211},
+        {9, 0x0a, 211},
+        {23, 0x0a, 211},
+        {40, 0x0b, 211},
+        {2, 0x0a, 212},
+        {9, 0x0a, 212},
+        {23, 0x0a, 212},
+        {40, 0x0b, 212},
+        {2, 0x0a, 214},
+        {9, 0x0a, 214},
+        {23, 0x0a, 214},
+        {40, 0x0b, 214},
+        {2, 0x0a, 221},
+        {9, 0x0a, 221},
+        {23, 0x0a, 221},
+        {40, 0x0b, 221},
+    },
+    /* 211 */
+    {
+        {3, 0x0a, 211},
+        {6, 0x0a, 211},
+        {10, 0x0a, 211},
+        {15, 0x0a, 211},
+        {24, 0x0a, 211},
+        {31, 0x0a, 211},
+        {41, 0x0a, 211},
+        {56, 0x0b, 211},
+        {3, 0x0a, 212},
+        {6, 0x0a, 212},
+        {10, 0x0a, 212},
+        {15, 0x0a, 212},
+        {24, 0x0a, 212},
+        {31, 0x0a, 212},
+        {41, 0x0a, 212},
+        {56, 0x0b, 212},
+    },
+    /* 212 */
+    {
+        {3, 0x0a, 214},
+        {6, 0x0a, 214},
+        {10, 0x0a, 214},
+        {15, 0x0a, 214},
+        {24, 0x0a, 214},
+        {31, 0x0a, 214},
+        {41, 0x0a, 214},
+        {56, 0x0b, 214},
+        {3, 0x0a, 221},
+        {6, 0x0a, 221},
+        {10, 0x0a, 221},
+        {15, 0x0a, 221},
+        {24, 0x0a, 221},
+        {31, 0x0a, 221},
+        {41, 0x0a, 221},
+        {56, 0x0b, 221},
+    },
+    /* 213 */
+    {
+        {2, 0x0a, 222},
+        {9, 0x0a, 222},
+        {23, 0x0a, 222},
+        {40, 0x0b, 222},
+        {2, 0x0a, 223},
+        {9, 0x0a, 223},
+        {23, 0x0a, 223},
+        {40, 0x0b, 223},
+        {2, 0x0a, 241},
+        {9, 0x0a, 241},
+        {23, 0x0a, 241},
+        {40, 0x0b, 241},
+        {2, 0x0a, 244},
+        {9, 0x0a, 244},
+        {23, 0x0a, 244},
+        {40, 0x0b, 244},
+    },
+    /* 214 */
+    {
+        {3, 0x0a, 222},
+        {6, 0x0a, 222},
+        {10, 0x0a, 222},
+        {15, 0x0a, 222},
+        {24, 0x0a, 222},
+        {31, 0x0a, 222},
+        {41, 0x0a, 222},
+        {56, 0x0b, 222},
+        {3, 0x0a, 223},
+        {6, 0x0a, 223},
+        {10, 0x0a, 223},
+        {15, 0x0a, 223},
+        {24, 0x0a, 223},
+        {31, 0x0a, 223},
+        {41, 0x0a, 223},
+        {56, 0x0b, 223},
+    },
+    /* 215 */
+    {
+        {3, 0x0a, 241},
+        {6, 0x0a, 241},
+        {10, 0x0a, 241},
+        {15, 0x0a, 241},
+        {24, 0x0a, 241},
+        {31, 0x0a, 241},
+        {41, 0x0a, 241},
+        {56, 0x0b, 241},
+        {3, 0x0a, 244},
+        {6, 0x0a, 244},
+        {10, 0x0a, 244},
+        {15, 0x0a, 244},
+        {24, 0x0a, 244},
+        {31, 0x0a, 244},
+        {41, 0x0a, 244},
+        {56, 0x0b, 244},
+    },
+    /* 216 */
+    {
+        {1, 0x0a, 245},
+        {22, 0x0b, 245},
+        {1, 0x0a, 246},
+        {22, 0x0b, 246},
+        {1, 0x0a, 247},
+        {22, 0x0b, 247},
+        {1, 0x0a, 248},
+        {22, 0x0b, 248},
+        {1, 0x0a, 250},
+        {22, 0x0b, 250},
+        {1, 0x0a, 251},
+        {22, 0x0b, 251},
+        {1, 0x0a, 252},
+        {22, 0x0b, 252},
+        {1, 0x0a, 253},
+        {22, 0x0b, 253},
+    },
+    /* 217 */
+    {
+        {2, 0x0a, 245},
+        {9, 0x0a, 245},
+        {23, 0x0a, 245},
+        {40, 0x0b, 245},
+        {2, 0x0a, 246},
+        {9, 0x0a, 246},
+        {23, 0x0a, 246},
+        {40, 0x0b, 246},
+        {2, 0x0a, 247},
+        {9, 0x0a, 247},
+        {23, 0x0a, 247},
+        {40, 0x0b, 247},
+        {2, 0x0a, 248},
+        {9, 0x0a, 248},
+        {23, 0x0a, 248},
+        {40, 0x0b, 248},
+    },
+    /* 218 */
+    {
+        {3, 0x0a, 245},
+        {6, 0x0a, 245},
+        {10, 0x0a, 245},
+        {15, 0x0a, 245},
+        {24, 0x0a, 245},
+        {31, 0x0a, 245},
+        {41, 0x0a, 245},
+        {56, 0x0b, 245},
+        {3, 0x0a, 246},
+        {6, 0x0a, 246},
+        {10, 0x0a, 246},
+        {15, 0x0a, 246},
+        {24, 0x0a, 246},
+        {31, 0x0a, 246},
+        {41, 0x0a, 246},
+        {56, 0x0b, 246},
+    },
+    /* 219 */
+    {
+        {3, 0x0a, 247},
+        {6, 0x0a, 247},
+        {10, 0x0a, 247},
+        {15, 0x0a, 247},
+        {24, 0x0a, 247},
+        {31, 0x0a, 247},
+        {41, 0x0a, 247},
+        {56, 0x0b, 247},
+        {3, 0x0a, 248},
+        {6, 0x0a, 248},
+        {10, 0x0a, 248},
+        {15, 0x0a, 248},
+        {24, 0x0a, 248},
+        {31, 0x0a, 248},
+        {41, 0x0a, 248},
+        {56, 0x0b, 248},
+    },
+    /* 220 */
+    {
+        {2, 0x0a, 250},
+        {9, 0x0a, 250},
+        {23, 0x0a, 250},
+        {40, 0x0b, 250},
+        {2, 0x0a, 251},
+        {9, 0x0a, 251},
+        {23, 0x0a, 251},
+        {40, 0x0b, 251},
+        {2, 0x0a, 252},
+        {9, 0x0a, 252},
+        {23, 0x0a, 252},
+        {40, 0x0b, 252},
+        {2, 0x0a, 253},
+        {9, 0x0a, 253},
+        {23, 0x0a, 253},
+        {40, 0x0b, 253},
+    },
+    /* 221 */
+    {
+        {3, 0x0a, 250},
+        {6, 0x0a, 250},
+        {10, 0x0a, 250},
+        {15, 0x0a, 250},
+        {24, 0x0a, 250},
+        {31, 0x0a, 250},
+        {41, 0x0a, 250},
+        {56, 0x0b, 250},
+        {3, 0x0a, 251},
+        {6, 0x0a, 251},
+        {10, 0x0a, 251},
+        {15, 0x0a, 251},
+        {24, 0x0a, 251},
+        {31, 0x0a, 251},
+        {41, 0x0a, 251},
+        {56, 0x0b, 251},
+    },
+    /* 222 */
+    {
+        {3, 0x0a, 252},
+        {6, 0x0a, 252},
+        {10, 0x0a, 252},
+        {15, 0x0a, 252},
+        {24, 0x0a, 252},
+        {31, 0x0a, 252},
+        {41, 0x0a, 252},
+        {56, 0x0b, 252},
+        {3, 0x0a, 253},
+        {6, 0x0a, 253},
+        {10, 0x0a, 253},
+        {15, 0x0a, 253},
+        {24, 0x0a, 253},
+        {31, 0x0a, 253},
+        {41, 0x0a, 253},
+        {56, 0x0b, 253},
+    },
+    /* 223 */
+    {
+        {0, 0x0b, 254},
+        {227, 0x00, 0},
+        {229, 0x00, 0},
+        {230, 0x00, 0},
+        {233, 0x00, 0},
+        {234, 0x00, 0},
+        {236, 0x00, 0},
+        {237, 0x00, 0},
+        {241, 0x00, 0},
+        {242, 0x00, 0},
+        {244, 0x00, 0},
+        {245, 0x00, 0},
+        {248, 0x00, 0},
+        {249, 0x00, 0},
+        {251, 0x00, 0},
+        {252, 0x00, 0},
+    },
+    /* 224 */
+    {
+        {1, 0x0a, 254},
+        {22, 0x0b, 254},
+        {0, 0x1b, 2},
+        {0, 0x1b, 3},
+        {0, 0x1b, 4},
+        {0, 0x1b, 5},
+        {0, 0x1b, 6},
+        {0, 0x1b, 7},
+        {0, 0x1b, 8},
+        {0, 0x1b, 11},
+        {0, 0x1b, 12},
+        {0, 0x1b, 14},
+        {0, 0x1b, 15},
+        {0, 0x1b, 16},
+        {0, 0x1b, 17},
+        {0, 0x1b, 18},
+    },
+    /* 225 */
+    {
+        {2, 0x0a, 254},
+        {9, 0x0a, 254},
+        {23, 0x0a, 254},
+        {40, 0x0b, 254},
+        {1, 0x1a, 2},
+        {22, 0x1b, 2},
+        {1, 0x1a, 3},
+        {22, 0x1b, 3},
+        {1, 0x1a, 4},
+        {22, 0x1b, 4},
+        {1, 0x1a, 5},
+        {22, 0x1b, 5},
+        {1, 0x1a, 6},
+        {22, 0x1b, 6},
+        {1, 0x1a, 7},
+        {22, 0x1b, 7},
+    },
+    /* 226 */
+    {
+        {3, 0x0a, 254},
+        {6, 0x0a, 254},
+        {10, 0x0a, 254},
+        {15, 0x0a, 254},
+        {24, 0x0a, 254},
+        {31, 0x0a, 254},
+        {41, 0x0a, 254},
+        {56, 0x0b, 254},
+        {2, 0x1a, 2},
+        {9, 0x1a, 2},
+        {23, 0x1a, 2},
+        {40, 0x1b, 2},
+        {2, 0x1a, 3},
+        {9, 0x1a, 3},
+        {23, 0x1a, 3},
+        {40, 0x1b, 3},
+    },
+    /* 227 */
+    {
+        {3, 0x1a, 2},
+        {6, 0x1a, 2},
+        {10, 0x1a, 2},
+        {15, 0x1a, 2},
+        {24, 0x1a, 2},
+        {31, 0x1a, 2},
+        {41, 0x1a, 2},
+        {56, 0x1b, 2},
+        {3, 0x1a, 3},
+        {6, 0x1a, 3},
+        {10, 0x1a, 3},
+        {15, 0x1a, 3},
+        {24, 0x1a, 3},
+        {31, 0x1a, 3},
+        {41, 0x1a, 3},
+        {56, 0x1b, 3},
+    },
+    /* 228 */
+    {
+        {2, 0x1a, 4},
+        {9, 0x1a, 4},
+        {23, 0x1a, 4},
+        {40, 0x1b, 4},
+        {2, 0x1a, 5},
+        {9, 0x1a, 5},
+        {23, 0x1a, 5},
+        {40, 0x1b, 5},
+        {2, 0x1a, 6},
+        {9, 0x1a, 6},
+        {23, 0x1a, 6},
+        {40, 0x1b, 6},
+        {2, 0x1a, 7},
+        {9, 0x1a, 7},
+        {23, 0x1a, 7},
+        {40, 0x1b, 7},
+    },
+    /* 229 */
+    {
+        {3, 0x1a, 4},
+        {6, 0x1a, 4},
+        {10, 0x1a, 4},
+        {15, 0x1a, 4},
+        {24, 0x1a, 4},
+        {31, 0x1a, 4},
+        {41, 0x1a, 4},
+        {56, 0x1b, 4},
+        {3, 0x1a, 5},
+        {6, 0x1a, 5},
+        {10, 0x1a, 5},
+        {15, 0x1a, 5},
+        {24, 0x1a, 5},
+        {31, 0x1a, 5},
+        {41, 0x1a, 5},
+        {56, 0x1b, 5},
+    },
+    /* 230 */
+    {
+        {3, 0x1a, 6},
+        {6, 0x1a, 6},
+        {10, 0x1a, 6},
+        {15, 0x1a, 6},
+        {24, 0x1a, 6},
+        {31, 0x1a, 6},
+        {41, 0x1a, 6},
+        {56, 0x1b, 6},
+        {3, 0x1a, 7},
+        {6, 0x1a, 7},
+        {10, 0x1a, 7},
+        {15, 0x1a, 7},
+        {24, 0x1a, 7},
+        {31, 0x1a, 7},
+        {41, 0x1a, 7},
+        {56, 0x1b, 7},
+    },
+    /* 231 */
+    {
+        {1, 0x1a, 8},
+        {22, 0x1b, 8},
+        {1, 0x1a, 11},
+        {22, 0x1b, 11},
+        {1, 0x1a, 12},
+        {22, 0x1b, 12},
+        {1, 0x1a, 14},
+        {22, 0x1b, 14},
+        {1, 0x1a, 15},
+        {22, 0x1b, 15},
+        {1, 0x1a, 16},
+        {22, 0x1b, 16},
+        {1, 0x1a, 17},
+        {22, 0x1b, 17},
+        {1, 0x1a, 18},
+        {22, 0x1b, 18},
+    },
+    /* 232 */
+    {
+        {2, 0x1a, 8},
+        {9, 0x1a, 8},
+        {23, 0x1a, 8},
+        {40, 0x1b, 8},
+        {2, 0x1a, 11},
+        {9, 0x1a, 11},
+        {23, 0x1a, 11},
+        {40, 0x1b, 11},
+        {2, 0x1a, 12},
+        {9, 0x1a, 12},
+        {23, 0x1a, 12},
+        {40, 0x1b, 12},
+        {2, 0x1a, 14},
+        {9, 0x1a, 14},
+        {23, 0x1a, 14},
+        {40, 0x1b, 14},
+    },
+    /* 233 */
+    {
+        {3, 0x1a, 8},
+        {6, 0x1a, 8},
+        {10, 0x1a, 8},
+        {15, 0x1a, 8},
+        {24, 0x1a, 8},
+        {31, 0x1a, 8},
+        {41, 0x1a, 8},
+        {56, 0x1b, 8},
+        {3, 0x1a, 11},
+        {6, 0x1a, 11},
+        {10, 0x1a, 11},
+        {15, 0x1a, 11},
+        {24, 0x1a, 11},
+        {31, 0x1a, 11},
+        {41, 0x1a, 11},
+        {56, 0x1b, 11},
+    },
+    /* 234 */
+    {
+        {3, 0x1a, 12},
+        {6, 0x1a, 12},
+        {10, 0x1a, 12},
+        {15, 0x1a, 12},
+        {24, 0x1a, 12},
+        {31, 0x1a, 12},
+        {41, 0x1a, 12},
+        {56, 0x1b, 12},
+        {3, 0x1a, 14},
+        {6, 0x1a, 14},
+        {10, 0x1a, 14},
+        {15, 0x1a, 14},
+        {24, 0x1a, 14},
+        {31, 0x1a, 14},
+        {41, 0x1a, 14},
+        {56, 0x1b, 14},
+    },
+    /* 235 */
+    {
+        {2, 0x1a, 15},
+        {9, 0x1a, 15},
+        {23, 0x1a, 15},
+        {40, 0x1b, 15},
+        {2, 0x1a, 16},
+        {9, 0x1a, 16},
+        {23, 0x1a, 16},
+        {40, 0x1b, 16},
+        {2, 0x1a, 17},
+        {9, 0x1a, 17},
+        {23, 0x1a, 17},
+        {40, 0x1b, 17},
+        {2, 0x1a, 18},
+        {9, 0x1a, 18},
+        {23, 0x1a, 18},
+        {40, 0x1b, 18},
+    },
+    /* 236 */
+    {
+        {3, 0x1a, 15},
+        {6, 0x1a, 15},
+        {10, 0x1a, 15},
+        {15, 0x1a, 15},
+        {24, 0x1a, 15},
+        {31, 0x1a, 15},
+        {41, 0x1a, 15},
+        {56, 0x1b, 15},
+        {3, 0x1a, 16},
+        {6, 0x1a, 16},
+        {10, 0x1a, 16},
+        {15, 0x1a, 16},
+        {24, 0x1a, 16},
+        {31, 0x1a, 16},
+        {41, 0x1a, 16},
+        {56, 0x1b, 16},
+    },
+    /* 237 */
+    {
+        {3, 0x1a, 17},
+        {6, 0x1a, 17},
+        {10, 0x1a, 17},
+        {15, 0x1a, 17},
+        {24, 0x1a, 17},
+        {31, 0x1a, 17},
+        {41, 0x1a, 17},
+        {56, 0x1b, 17},
+        {3, 0x1a, 18},
+        {6, 0x1a, 18},
+        {10, 0x1a, 18},
+        {15, 0x1a, 18},
+        {24, 0x1a, 18},
+        {31, 0x1a, 18},
+        {41, 0x1a, 18},
+        {56, 0x1b, 18},
+    },
+    /* 238 */
+    {
+        {0, 0x1b, 19},
+        {0, 0x1b, 20},
+        {0, 0x1b, 21},
+        {0, 0x1b, 23},
+        {0, 0x1b, 24},
+        {0, 0x1b, 25},
+        {0, 0x1b, 26},
+        {0, 0x1b, 27},
+        {0, 0x1b, 28},
+        {0, 0x1b, 29},
+        {0, 0x1b, 30},
+        {0, 0x1b, 31},
+        {0, 0x1b, 127},
+        {0, 0x0b, 220},
+        {0, 0x0b, 249},
+        {253, 0x00, 0},
+    },
+    /* 239 */
+    {
+        {1, 0x1a, 19},
+        {22, 0x1b, 19},
+        {1, 0x1a, 20},
+        {22, 0x1b, 20},
+        {1, 0x1a, 21},
+        {22, 0x1b, 21},
+        {1, 0x1a, 23},
+        {22, 0x1b, 23},
+        {1, 0x1a, 24},
+        {22, 0x1b, 24},
+        {1, 0x1a, 25},
+        {22, 0x1b, 25},
+        {1, 0x1a, 26},
+        {22, 0x1b, 26},
+        {1, 0x1a, 27},
+        {22, 0x1b, 27},
+    },
+    /* 240 */
+    {
+        {2, 0x1a, 19},
+        {9, 0x1a, 19},
+        {23, 0x1a, 19},
+        {40, 0x1b, 19},
+        {2, 0x1a, 20},
+        {9, 0x1a, 20},
+        {23, 0x1a, 20},
+        {40, 0x1b, 20},
+        {2, 0x1a, 21},
+        {9, 0x1a, 21},
+        {23, 0x1a, 21},
+        {40, 0x1b, 21},
+        {2, 0x1a, 23},
+        {9, 0x1a, 23},
+        {23, 0x1a, 23},
+        {40, 0x1b, 23},
+    },
+    /* 241 */
+    {
+        {3, 0x1a, 19},
+        {6, 0x1a, 19},
+        {10, 0x1a, 19},
+        {15, 0x1a, 19},
+        {24, 0x1a, 19},
+        {31, 0x1a, 19},
+        {41, 0x1a, 19},
+        {56, 0x1b, 19},
+        {3, 0x1a, 20},
+        {6, 0x1a, 20},
+        {10, 0x1a, 20},
+        {15, 0x1a, 20},
+        {24, 0x1a, 20},
+        {31, 0x1a, 20},
+        {41, 0x1a, 20},
+        {56, 0x1b, 20},
+    },
+    /* 242 */
+    {
+        {3, 0x1a, 21},
+        {6, 0x1a, 21},
+        {10, 0x1a, 21},
+        {15, 0x1a, 21},
+        {24, 0x1a, 21},
+        {31, 0x1a, 21},
+        {41, 0x1a, 21},
+        {56, 0x1b, 21},
+        {3, 0x1a, 23},
+        {6, 0x1a, 23},
+        {10, 0x1a, 23},
+        {15, 0x1a, 23},
+        {24, 0x1a, 23},
+        {31, 0x1a, 23},
+        {41, 0x1a, 23},
+        {56, 0x1b, 23},
+    },
+    /* 243 */
+    {
+        {2, 0x1a, 24},
+        {9, 0x1a, 24},
+        {23, 0x1a, 24},
+        {40, 0x1b, 24},
+        {2, 0x1a, 25},
+        {9, 0x1a, 25},
+        {23, 0x1a, 25},
+        {40, 0x1b, 25},
+        {2, 0x1a, 26},
+        {9, 0x1a, 26},
+        {23, 0x1a, 26},
+        {40, 0x1b, 26},
+        {2, 0x1a, 27},
+        {9, 0x1a, 27},
+        {23, 0x1a, 27},
+        {40, 0x1b, 27},
+    },
+    /* 244 */
+    {
+        {3, 0x1a, 24},
+        {6, 0x1a, 24},
+        {10, 0x1a, 24},
+        {15, 0x1a, 24},
+        {24, 0x1a, 24},
+        {31, 0x1a, 24},
+        {41, 0x1a, 24},
+        {56, 0x1b, 24},
+        {3, 0x1a, 25},
+        {6, 0x1a, 25},
+        {10, 0x1a, 25},
+        {15, 0x1a, 25},
+        {24, 0x1a, 25},
+        {31, 0x1a, 25},
+        {41, 0x1a, 25},
+        {56, 0x1b, 25},
+    },
+    /* 245 */
+    {
+        {3, 0x1a, 26},
+        {6, 0x1a, 26},
+        {10, 0x1a, 26},
+        {15, 0x1a, 26},
+        {24, 0x1a, 26},
+        {31, 0x1a, 26},
+        {41, 0x1a, 26},
+        {56, 0x1b, 26},
+        {3, 0x1a, 27},
+        {6, 0x1a, 27},
+        {10, 0x1a, 27},
+        {15, 0x1a, 27},
+        {24, 0x1a, 27},
+        {31, 0x1a, 27},
+        {41, 0x1a, 27},
+        {56, 0x1b, 27},
+    },
+    /* 246 */
+    {
+        {1, 0x1a, 28},
+        {22, 0x1b, 28},
+        {1, 0x1a, 29},
+        {22, 0x1b, 29},
+        {1, 0x1a, 30},
+        {22, 0x1b, 30},
+        {1, 0x1a, 31},
+        {22, 0x1b, 31},
+        {1, 0x1a, 127},
+        {22, 0x1b, 127},
+        {1, 0x0a, 220},
+        {22, 0x0b, 220},
+        {1, 0x0a, 249},
+        {22, 0x0b, 249},
+        {254, 0x00, 0},
+        {255, 0x00, 0},
+    },
+    /* 247 */
+    {
+        {2, 0x1a, 28},
+        {9, 0x1a, 28},
+        {23, 0x1a, 28},
+        {40, 0x1b, 28},
+        {2, 0x1a, 29},
+        {9, 0x1a, 29},
+        {23, 0x1a, 29},
+        {40, 0x1b, 29},
+        {2, 0x1a, 30},
+        {9, 0x1a, 30},
+        {23, 0x1a, 30},
+        {40, 0x1b, 30},
+        {2, 0x1a, 31},
+        {9, 0x1a, 31},
+        {23, 0x1a, 31},
+        {40, 0x1b, 31},
+    },
+    /* 248 */
+    {
+        {3, 0x1a, 28},
+        {6, 0x1a, 28},
+        {10, 0x1a, 28},
+        {15, 0x1a, 28},
+        {24, 0x1a, 28},
+        {31, 0x1a, 28},
+        {41, 0x1a, 28},
+        {56, 0x1b, 28},
+        {3, 0x1a, 29},
+        {6, 0x1a, 29},
+        {10, 0x1a, 29},
+        {15, 0x1a, 29},
+        {24, 0x1a, 29},
+        {31, 0x1a, 29},
+        {41, 0x1a, 29},
+        {56, 0x1b, 29},
+    },
+    /* 249 */
+    {
+        {3, 0x1a, 30},
+        {6, 0x1a, 30},
+        {10, 0x1a, 30},
+        {15, 0x1a, 30},
+        {24, 0x1a, 30},
+        {31, 0x1a, 30},
+        {41, 0x1a, 30},
+        {56, 0x1b, 30},
+        {3, 0x1a, 31},
+        {6, 0x1a, 31},
+        {10, 0x1a, 31},
+        {15, 0x1a, 31},
+        {24, 0x1a, 31},
+        {31, 0x1a, 31},
+        {41, 0x1a, 31},
+        {56, 0x1b, 31},
+    },
+    /* 250 */
+    {
+        {2, 0x1a, 127},
+        {9, 0x1a, 127},
+        {23, 0x1a, 127},
+        {40, 0x1b, 127},
+        {2, 0x0a, 220},
+        {9, 0x0a, 220},
+        {23, 0x0a, 220},
+        {40, 0x0b, 220},
+        {2, 0x0a, 249},
+        {9, 0x0a, 249},
+        {23, 0x0a, 249},
+        {40, 0x0b, 249},
+        {0, 0x1b, 10},
+        {0, 0x1b, 13},
+        {0, 0x1b, 22},
+        {0, 0x04, 0},
+    },
+    /* 251 */
+    {
+        {3, 0x1a, 127},
+        {6, 0x1a, 127},
+        {10, 0x1a, 127},
+        {15, 0x1a, 127},
+        {24, 0x1a, 127},
+        {31, 0x1a, 127},
+        {41, 0x1a, 127},
+        {56, 0x1b, 127},
+        {3, 0x0a, 220},
+        {6, 0x0a, 220},
+        {10, 0x0a, 220},
+        {15, 0x0a, 220},
+        {24, 0x0a, 220},
+        {31, 0x0a, 220},
+        {41, 0x0a, 220},
+        {56, 0x0b, 220},
+    },
+    /* 252 */
+    {
+        {3, 0x0a, 249},
+        {6, 0x0a, 249},
+        {10, 0x0a, 249},
+        {15, 0x0a, 249},
+        {24, 0x0a, 249},
+        {31, 0x0a, 249},
+        {41, 0x0a, 249},
+        {56, 0x0b, 249},
+        {1, 0x1a, 10},
+        {22, 0x1b, 10},
+        {1, 0x1a, 13},
+        {22, 0x1b, 13},
+        {1, 0x1a, 22},
+        {22, 0x1b, 22},
+        {0, 0x04, 0},
+        {0, 0x04, 0},
+    },
+    /* 253 */
+    {
+        {2, 0x1a, 10},
+        {9, 0x1a, 10},
+        {23, 0x1a, 10},
+        {40, 0x1b, 10},
+        {2, 0x1a, 13},
+        {9, 0x1a, 13},
+        {23, 0x1a, 13},
+        {40, 0x1b, 13},
+        {2, 0x1a, 22},
+        {9, 0x1a, 22},
+        {23, 0x1a, 22},
+        {40, 0x1b, 22},
+        {0, 0x04, 0},
+        {0, 0x04, 0},
+        {0, 0x04, 0},
+        {0, 0x04, 0},
+    },
+    /* 254 */
+    {
+        {3, 0x1a, 10},
+        {6, 0x1a, 10},
+        {10, 0x1a, 10},
+        {15, 0x1a, 10},
+        {24, 0x1a, 10},
+        {31, 0x1a, 10},
+        {41, 0x1a, 10},
+        {56, 0x1b, 10},
+        {3, 0x1a, 13},
+        {6, 0x1a, 13},
+        {10, 0x1a, 13},
+        {15, 0x1a, 13},
+        {24, 0x1a, 13},
+        {31, 0x1a, 13},
+        {41, 0x1a, 13},
+        {56, 0x1b, 13},
+    },
+    /* 255 */
+    {
+        {3, 0x1a, 22},
+        {6, 0x1a, 22},
+        {10, 0x1a, 22},
+        {15, 0x1a, 22},
+        {24, 0x1a, 22},
+        {31, 0x1a, 22},
+        {41, 0x1a, 22},
+        {56, 0x1b, 22},
+        {0, 0x04, 0},
+        {0, 0x04, 0},
+        {0, 0x04, 0},
+        {0, 0x04, 0},
+        {0, 0x04, 0},
+        {0, 0x04, 0},
+        {0, 0x04, 0},
+        {0, 0x04, 0},
+    },
+};
diff --git a/debian/vendor-h2o/lib/http2/hpack_static_table.h b/debian/vendor-h2o/lib/http2/hpack_static_table.h
new file mode 100644
index 0000000..4c12431
--- /dev/null
+++ b/debian/vendor-h2o/lib/http2/hpack_static_table.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the &quot;Software&quot;), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+/* automatically generated by tokens.pl */
+
+static const struct st_h2o_hpack_static_table_entry_t h2o_hpack_static_table[61] = {
+    { H2O_TOKEN_AUTHORITY, { H2O_STRLIT("") } },
+    { H2O_TOKEN_METHOD, { H2O_STRLIT("GET") } },
+    { H2O_TOKEN_METHOD, { H2O_STRLIT("POST") } },
+    { H2O_TOKEN_PATH, { H2O_STRLIT("/") } },
+    { H2O_TOKEN_PATH, { H2O_STRLIT("/index.html") } },
+    { H2O_TOKEN_SCHEME, { H2O_STRLIT("http") } },
+    { H2O_TOKEN_SCHEME, { H2O_STRLIT("https") } },
+    { H2O_TOKEN_STATUS, { H2O_STRLIT("200") } },
+    { H2O_TOKEN_STATUS, { H2O_STRLIT("204") } },
+    { H2O_TOKEN_STATUS, { H2O_STRLIT("206") } },
+    { H2O_TOKEN_STATUS, { H2O_STRLIT("304") } },
+    { H2O_TOKEN_STATUS, { H2O_STRLIT("400") } },
+    { H2O_TOKEN_STATUS, { H2O_STRLIT("404") } },
+    { H2O_TOKEN_STATUS, { H2O_STRLIT("500") } },
+    { H2O_TOKEN_ACCEPT_CHARSET, { H2O_STRLIT("") } },
+    { H2O_TOKEN_ACCEPT_ENCODING, { H2O_STRLIT("gzip, deflate") } },
+    { H2O_TOKEN_ACCEPT_LANGUAGE, { H2O_STRLIT("") } },
+    { H2O_TOKEN_ACCEPT_RANGES, { H2O_STRLIT("") } },
+    { H2O_TOKEN_ACCEPT, { H2O_STRLIT("") } },
+    { H2O_TOKEN_ACCESS_CONTROL_ALLOW_ORIGIN, { H2O_STRLIT("") } },
+    { H2O_TOKEN_AGE, { H2O_STRLIT("") } },
+    { H2O_TOKEN_ALLOW, { H2O_STRLIT("") } },
+    { H2O_TOKEN_AUTHORIZATION, { H2O_STRLIT("") } },
+    { H2O_TOKEN_CACHE_CONTROL, { H2O_STRLIT("") } },
+    { H2O_TOKEN_CONTENT_DISPOSITION, { H2O_STRLIT("") } },
+    { H2O_TOKEN_CONTENT_ENCODING, { H2O_STRLIT("") } },
+    { H2O_TOKEN_CONTENT_LANGUAGE, { H2O_STRLIT("") } },
+    { H2O_TOKEN_CONTENT_LENGTH, { H2O_STRLIT("") } },
+    { H2O_TOKEN_CONTENT_LOCATION, { H2O_STRLIT("") } },
+    { H2O_TOKEN_CONTENT_RANGE, { H2O_STRLIT("") } },
+    { H2O_TOKEN_CONTENT_TYPE, { H2O_STRLIT("") } },
+    { H2O_TOKEN_COOKIE, { H2O_STRLIT("") } },
+    { H2O_TOKEN_DATE, { H2O_STRLIT("") } },
+    { H2O_TOKEN_ETAG, { H2O_STRLIT("") } },
+    { H2O_TOKEN_EXPECT, { H2O_STRLIT("") } },
+    { H2O_TOKEN_EXPIRES, { H2O_STRLIT("") } },
+    { H2O_TOKEN_FROM, { H2O_STRLIT("") } },
+    { H2O_TOKEN_HOST, { H2O_STRLIT("") } },
+    { H2O_TOKEN_IF_MATCH, { H2O_STRLIT("") } },
+    { H2O_TOKEN_IF_MODIFIED_SINCE, { H2O_STRLIT("") } },
+    { H2O_TOKEN_IF_NONE_MATCH, { H2O_STRLIT("") } },
+    { H2O_TOKEN_IF_RANGE, { H2O_STRLIT("") } },
+    { H2O_TOKEN_IF_UNMODIFIED_SINCE, { H2O_STRLIT("") } },
+    { H2O_TOKEN_LAST_MODIFIED, { H2O_STRLIT("") } },
+    { H2O_TOKEN_LINK, { H2O_STRLIT("") } },
+    { H2O_TOKEN_LOCATION, { H2O_STRLIT("") } },
+    { H2O_TOKEN_MAX_FORWARDS, { H2O_STRLIT("") } },
+    { H2O_TOKEN_PROXY_AUTHENTICATE, { H2O_STRLIT("") } },
+    { H2O_TOKEN_PROXY_AUTHORIZATION, { H2O_STRLIT("") } },
+    { H2O_TOKEN_RANGE, { H2O_STRLIT("") } },
+    { H2O_TOKEN_REFERER, { H2O_STRLIT("") } },
+    { H2O_TOKEN_REFRESH, { H2O_STRLIT("") } },
+    { H2O_TOKEN_RETRY_AFTER, { H2O_STRLIT("") } },
+    { H2O_TOKEN_SERVER, { H2O_STRLIT("") } },
+    { H2O_TOKEN_SET_COOKIE, { H2O_STRLIT("") } },
+    { H2O_TOKEN_STRICT_TRANSPORT_SECURITY, { H2O_STRLIT("") } },
+    { H2O_TOKEN_TRANSFER_ENCODING, { H2O_STRLIT("") } },
+    { H2O_TOKEN_USER_AGENT, { H2O_STRLIT("") } },
+    { H2O_TOKEN_VARY, { H2O_STRLIT("") } },
+    { H2O_TOKEN_VIA, { H2O_STRLIT("") } },
+    { H2O_TOKEN_WWW_AUTHENTICATE, { H2O_STRLIT("") } }
+};
diff --git a/debian/vendor-h2o/lib/http2/http2_debug_state.c b/debian/vendor-h2o/lib/http2/http2_debug_state.c
new file mode 100644
index 0000000..3ef8de3
--- /dev/null
+++ b/debian/vendor-h2o/lib/http2/http2_debug_state.c
@@ -0,0 +1,194 @@
+/*
+ * Copyright (c) 2016 DeNA Co., Ltd., Ichito Nagata
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <inttypes.h>
+#include "h2o.h"
+#include "h2o/http2.h"
+#include "h2o/http2_internal.h"
+
+static const char *debug_state_string_open = "OPEN";
+static const char *debug_state_string_half_closed_remote = "HALF_CLOSED_REMOTE";
+static const char *debug_state_string_reserved_local = "RESERVED_LOCAL";
+
+static const char *get_debug_state_string(h2o_http2_stream_t *stream)
+{
+    if (h2o_http2_stream_is_push(stream->stream_id)) {
+        switch (stream->state) {
+        case H2O_HTTP2_STREAM_STATE_RECV_HEADERS:
+        case H2O_HTTP2_STREAM_STATE_RECV_BODY:
+        case H2O_HTTP2_STREAM_STATE_REQ_PENDING:
+            return debug_state_string_reserved_local;
+        case H2O_HTTP2_STREAM_STATE_SEND_HEADERS:
+        case H2O_HTTP2_STREAM_STATE_SEND_BODY:
+        case H2O_HTTP2_STREAM_STATE_SEND_BODY_IS_FINAL:
+            return debug_state_string_half_closed_remote;
+        case H2O_HTTP2_STREAM_STATE_IDLE:
+        case H2O_HTTP2_STREAM_STATE_END_STREAM:
+            return NULL;
+        }
+    } else {
+        switch (stream->state) {
+        case H2O_HTTP2_STREAM_STATE_RECV_HEADERS:
+        case H2O_HTTP2_STREAM_STATE_RECV_BODY:
+            return debug_state_string_open;
+        case H2O_HTTP2_STREAM_STATE_REQ_PENDING:
+        case H2O_HTTP2_STREAM_STATE_SEND_HEADERS:
+        case H2O_HTTP2_STREAM_STATE_SEND_BODY:
+        case H2O_HTTP2_STREAM_STATE_SEND_BODY_IS_FINAL:
+            return debug_state_string_half_closed_remote;
+        case H2O_HTTP2_STREAM_STATE_IDLE:
+        case H2O_HTTP2_STREAM_STATE_END_STREAM:
+            return NULL;
+        }
+    }
+    return NULL;
+}
+
+__attribute__((format(printf, 3, 4))) static void append_chunk(h2o_mem_pool_t *pool, h2o_iovec_vector_t *chunks, const char *fmt,
+                                                               ...)
+{
+    va_list args;
+
+    va_start(args, fmt);
+    int size = vsnprintf(NULL, 0, fmt, args);
+    va_end(args);
+
+    assert(size > 0);
+
+    h2o_iovec_t v;
+    v.base = h2o_mem_alloc_pool(pool, size + 1);
+
+    va_start(args, fmt);
+    v.len = vsnprintf(v.base, size + 1, fmt, args);
+    va_end(args);
+
+    h2o_vector_reserve(pool, chunks, chunks->size + 1);
+    chunks->entries[chunks->size++] = v;
+}
+
+static void append_header_table_chunks(h2o_mem_pool_t *pool, h2o_iovec_vector_t *chunks, h2o_hpack_header_table_t *header_table)
+{
+    int i;
+    for (i = 0; i < header_table->num_entries; i++) {
+        h2o_hpack_header_table_entry_t *entry = h2o_hpack_header_table_get(header_table, i);
+        append_chunk(pool, chunks, "\n"
+                                   "      [ \"%.*s\", \"%.*s\" ],",
+                     (int)entry->name->len, entry->name->base, (int)entry->value->len, entry->value->base);
+    }
+
+    if (i > 0) {
+        // remove the last commna
+        --chunks->entries[chunks->size - 1].len;
+    }
+}
+
+h2o_http2_debug_state_t *h2o_http2_get_debug_state(h2o_req_t *req, int hpack_enabled)
+{
+    h2o_http2_conn_t *conn = (h2o_http2_conn_t *)req->conn;
+    h2o_http2_debug_state_t *state = h2o_mem_alloc_pool(&req->pool, sizeof(*state));
+    *state = (h2o_http2_debug_state_t){{NULL}};
+
+    state->conn_flow_in = conn->_write.window._avail;
+    state->conn_flow_out = conn->_write.window._avail;
+
+    append_chunk(&req->pool, &state->json, "{\n"
+                                           "  \"version\": \"draft-01\",\n"
+                                           "  \"settings\": {\n"
+                                           "    \"SETTINGS_HEADER_TABLE_SIZE\": %" PRIu32 ",\n"
+                                           "    \"SETTINGS_ENABLE_PUSH\": %" PRIu32 ",\n"
+                                           "    \"SETTINGS_MAX_CONCURRENT_STREAMS\": %" PRIu32 ",\n"
+                                           "    \"SETTINGS_INITIAL_WINDOW_SIZE\": %" PRIu32 ",\n"
+                                           "    \"SETTINGS_MAX_FRAME_SIZE\": %" PRIu32 "\n"
+                                           "  },\n"
+                                           "  \"peerSettings\": {\n"
+                                           "    \"SETTINGS_HEADER_TABLE_SIZE\": %" PRIu32 ",\n"
+                                           "    \"SETTINGS_ENABLE_PUSH\": %" PRIu32 ",\n"
+                                           "    \"SETTINGS_MAX_CONCURRENT_STREAMS\": %" PRIu32 ",\n"
+                                           "    \"SETTINGS_INITIAL_WINDOW_SIZE\": %" PRIu32 ",\n"
+                                           "    \"SETTINGS_MAX_FRAME_SIZE\": %" PRIu32 "\n"
+                                           "  },\n"
+                                           "  \"connFlowIn\": %zd,\n"
+                                           "  \"connFlowOut\": %zd,\n"
+                                           "  \"streams\": {",
+                 H2O_HTTP2_SETTINGS_HOST.header_table_size, H2O_HTTP2_SETTINGS_HOST.enable_push,
+                 H2O_HTTP2_SETTINGS_HOST.max_concurrent_streams, H2O_HTTP2_SETTINGS_HOST.initial_window_size,
+                 H2O_HTTP2_SETTINGS_HOST.max_frame_size, conn->peer_settings.header_table_size, conn->peer_settings.enable_push,
+                 conn->peer_settings.max_concurrent_streams, conn->peer_settings.initial_window_size,
+                 conn->peer_settings.max_frame_size, conn->_input_window._avail, conn->_write.window._avail);
+
+    /* encode streams */
+    {
+        h2o_http2_stream_t *stream;
+        kh_foreach_value(conn->streams, stream, {
+            const char *state_string = get_debug_state_string(stream);
+            if (state_string == NULL)
+                continue;
+
+            append_chunk(&req->pool, &state->json, "\n"
+                                                   "    \"%" PRIu32 "\": {\n"
+                                                   "      \"state\": \"%s\",\n"
+                                                   "      \"flowIn\": %zd,\n"
+                                                   "      \"flowOut\": %zd,\n"
+                                                   "      \"dataIn\": %zu,\n"
+                                                   "      \"dataOut\": %zu,\n"
+                                                   "      \"created\": %" PRIu64 "\n"
+                                                   "    },",
+                         stream->stream_id, state_string, stream->input_window._avail, stream->output_window._avail,
+                         (stream->_req_body == NULL ? 0 : stream->_req_body->size), stream->req.bytes_sent,
+                         (uint64_t)stream->req.timestamps.request_begin_at.tv_sec);
+        });
+
+        if (conn->streams->size > 0) {
+            // remove the last commna
+            --state->json.entries[state->json.size - 1].len;
+        }
+    }
+
+    append_chunk(&req->pool, &state->json, "\n"
+                                           "  }");
+
+    if (hpack_enabled) {
+        /* encode inbound header table */
+        append_chunk(&req->pool, &state->json, ",\n"
+                                               "  \"hpack\": {\n"
+                                               "    \"inboundTableSize\": %zd,\n"
+                                               "    \"inboundDynamicHeaderTable\": [",
+                     conn->_input_header_table.num_entries);
+        append_header_table_chunks(&req->pool, &state->json, &conn->_input_header_table);
+
+        /* encode outbound header table */
+        append_chunk(&req->pool, &state->json, "\n"
+                                               "    ],\n"
+                                               "    \"outboundTableSize\": %zd,\n"
+                                               "    \"outboundDynamicHeaderTable\": [",
+                     conn->_output_header_table.num_entries);
+        append_header_table_chunks(&req->pool, &state->json, &conn->_output_header_table);
+
+        append_chunk(&req->pool, &state->json, "\n"
+                                               "    ]\n"
+                                               "  }");
+    }
+
+    append_chunk(&req->pool, &state->json, "\n"
+                                           "}\n");
+
+    return state;
+}
diff --git a/debian/vendor-h2o/lib/http2/scheduler.c b/debian/vendor-h2o/lib/http2/scheduler.c
new file mode 100644
index 0000000..0ea7e45
--- /dev/null
+++ b/debian/vendor-h2o/lib/http2/scheduler.c
@@ -0,0 +1,365 @@
+/*
+ * Copyright (c) 2015 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o.h"
+#include "h2o/http2_scheduler.h"
+
+struct st_h2o_http2_scheduler_queue_t {
+    uint64_t bits;
+    size_t offset;
+    h2o_linklist_t anchors[64];
+    h2o_linklist_t anchor257;
+};
+
+static void queue_init(h2o_http2_scheduler_queue_t *queue)
+{
+    size_t i;
+    queue->bits = 0;
+    queue->offset = 0;
+    for (i = 0; i != sizeof(queue->anchors) / sizeof(queue->anchors[0]); ++i)
+        h2o_linklist_init_anchor(queue->anchors + i);
+    h2o_linklist_init_anchor(&queue->anchor257);
+}
+
+static int queue_is_empty(h2o_http2_scheduler_queue_t *queue)
+{
+    return queue->bits == 0 && h2o_linklist_is_empty(&queue->anchor257);
+}
+
+static void queue_set(h2o_http2_scheduler_queue_t *queue, h2o_http2_scheduler_queue_node_t *node, uint16_t weight)
+{
+    /* holds 257 entries of offsets (multiplied by 65536) where nodes with weights between 1..257 should go into
+     * each entry (expect for weight=256) is calculated as: round(N / weight), where N is adjusted so that the
+     * value would become 63*65536 for weight=0.
+     * weight=257 is used internally to send data before any of the streams being pulled, and therefore has the offset set to zero.
+     */
+    static const unsigned OFFSET_TABLE[] = {
+        4128768, 2064384, 1376256, 1032192, 825754, 688128, 589824, 516096, 458752, 412877, 375343, 344064, 317598, 294912, 275251,
+        258048,  242869,  229376,  217304,  206438, 196608, 187671, 179512, 172032, 165151, 158799, 152917, 147456, 142371, 137626,
+        133186,  129024,  125114,  121434,  117965, 114688, 111588, 108652, 105866, 103219, 100702, 98304,  96018,  93836,  91750,
+        89756,   87846,   86016,   84261,   82575,  80956,  79399,  77901,  76459,  75069,  73728,  72435,  71186,  69979,  68813,
+        67685,   66593,   65536,   64512,   63520,  62557,  61623,  60717,  59837,  58982,  58152,  57344,  56558,  55794,  55050,
+        54326,   53620,   52933,   52263,   51610,  50972,  50351,  49744,  49152,  48574,  48009,  47457,  46918,  46391,  45875,
+        45371,   44878,   44395,   43923,   43461,  43008,  42565,  42130,  41705,  41288,  40879,  40478,  40085,  39700,  39322,
+        38951,   38587,   38229,   37879,   37534,  37196,  36864,  36538,  36217,  35902,  35593,  35289,  34990,  34696,  34406,
+        34122,   33842,   33567,   33297,   33030,  32768,  32510,  32256,  32006,  31760,  31517,  31279,  31043,  30812,  30583,
+        30359,   30137,   29919,   29703,   29491,  29282,  29076,  28873,  28672,  28474,  28279,  28087,  27897,  27710,  27525,
+        27343,   27163,   26985,   26810,   26637,  26466,  26298,  26131,  25967,  25805,  25645,  25486,  25330,  25175,  25023,
+        24872,   24723,   24576,   24431,   24287,  24145,  24004,  23866,  23729,  23593,  23459,  23326,  23195,  23066,  22938,
+        22811,   22686,   22562,   22439,   22318,  22198,  22079,  21962,  21845,  21730,  21617,  21504,  21393,  21282,  21173,
+        21065,   20958,   20852,   20748,   20644,  20541,  20439,  20339,  20239,  20140,  20043,  19946,  19850,  19755,  19661,
+        19568,   19475,   19384,   19293,   19204,  19115,  19027,  18939,  18853,  18767,  18682,  18598,  18515,  18432,  18350,
+        18269,   18188,   18109,   18030,   17951,  17873,  17796,  17720,  17644,  17569,  17495,  17421,  17348,  17275,  17203,
+        17132,   17061,   16991,   16921,   16852,  16784,  16716,  16648,  16581,  16515,  16449,  16384,  16319,  16255,  16191,
+        16128,   0};
+
+    assert(!h2o_linklist_is_linked(&node->_link));
+
+    if (weight > 256) {
+
+        h2o_linklist_insert(&queue->anchor257, &node->_link);
+
+    } else {
+
+        assert(1 <= weight);
+
+        size_t offset = OFFSET_TABLE[weight - 1] + node->_deficit;
+        node->_deficit = offset % 65536;
+        offset = offset / 65536;
+
+        queue->bits |= 1ULL << (sizeof(queue->bits) * 8 - 1 - offset);
+        h2o_linklist_insert(queue->anchors + (queue->offset + offset) % (sizeof(queue->anchors) / sizeof(queue->anchors[0])),
+                            &node->_link);
+    }
+}
+
+static void queue_unset(h2o_http2_scheduler_queue_node_t *node)
+{
+    assert(h2o_linklist_is_linked(&node->_link));
+    h2o_linklist_unlink(&node->_link);
+}
+
+static h2o_http2_scheduler_queue_node_t *queue_pop(h2o_http2_scheduler_queue_t *queue)
+{
+    if (!h2o_linklist_is_empty(&queue->anchor257)) {
+        h2o_http2_scheduler_queue_node_t *node =
+            H2O_STRUCT_FROM_MEMBER(h2o_http2_scheduler_queue_node_t, _link, queue->anchor257.next);
+        h2o_linklist_unlink(&node->_link);
+        return node;
+    }
+
+    while (queue->bits != 0) {
+        int zeroes = __builtin_clzll(queue->bits);
+        queue->bits <<= zeroes;
+        queue->offset = (queue->offset + zeroes) % (sizeof(queue->anchors) / sizeof(queue->anchors[0]));
+        if (!h2o_linklist_is_empty(queue->anchors + queue->offset)) {
+            h2o_http2_scheduler_queue_node_t *node =
+                H2O_STRUCT_FROM_MEMBER(h2o_http2_scheduler_queue_node_t, _link, queue->anchors[queue->offset].next);
+            h2o_linklist_unlink(&node->_link);
+            if (h2o_linklist_is_empty(queue->anchors + queue->offset))
+                queue->bits &= (1ULL << (sizeof(queue->bits) * 8 - 1)) - 1;
+            return node;
+        }
+        queue->bits &= (1ULL << (sizeof(queue->bits) * 8 - 1)) - 1;
+    }
+    return NULL;
+}
+
+static void init_node(h2o_http2_scheduler_node_t *node, h2o_http2_scheduler_node_t *parent)
+{
+    *node = (h2o_http2_scheduler_node_t){parent};
+    h2o_linklist_init_anchor(&node->_all_refs);
+}
+
+static h2o_http2_scheduler_queue_t *get_queue(h2o_http2_scheduler_node_t *node)
+{
+    if (node->_queue == NULL) {
+        node->_queue = h2o_mem_alloc(sizeof(*node->_queue));
+        queue_init(node->_queue);
+    }
+    return node->_queue;
+}
+
+static void incr_active_cnt(h2o_http2_scheduler_node_t *node)
+{
+    h2o_http2_scheduler_openref_t *ref;
+
+    /* do nothing if node is the root */
+    if (node->_parent == NULL)
+        return;
+
+    ref = (h2o_http2_scheduler_openref_t *)node;
+    if (++ref->_active_cnt != 1)
+        return;
+    /* just changed to active */
+    queue_set(get_queue(ref->node._parent), &ref->_queue_node, ref->weight);
+    /* delegate the change towards root */
+    incr_active_cnt(ref->node._parent);
+}
+
+static void decr_active_cnt(h2o_http2_scheduler_node_t *node)
+{
+    h2o_http2_scheduler_openref_t *ref;
+
+    /* do notnig if node is the root */
+    if (node->_parent == NULL)
+        return;
+
+    ref = (h2o_http2_scheduler_openref_t *)node;
+    if (--ref->_active_cnt != 0)
+        return;
+    /* just changed to inactive */
+    queue_unset(&ref->_queue_node);
+    /* delegate the change towards root */
+    decr_active_cnt(ref->node._parent);
+}
+
+static void convert_to_exclusive(h2o_http2_scheduler_node_t *parent, h2o_http2_scheduler_openref_t *added)
+{
+    while (!h2o_linklist_is_empty(&parent->_all_refs)) {
+        h2o_http2_scheduler_openref_t *child_ref =
+            H2O_STRUCT_FROM_MEMBER(h2o_http2_scheduler_openref_t, _all_link, parent->_all_refs.next);
+        if (child_ref == added) {
+            /* precond: the added node should exist as the last item within parent */
+            assert(parent->_all_refs.prev == &added->_all_link);
+            break;
+        }
+        h2o_http2_scheduler_rebind(child_ref, &added->node, h2o_http2_scheduler_get_weight(child_ref), 0);
+    }
+}
+
+void h2o_http2_scheduler_open(h2o_http2_scheduler_openref_t *ref, h2o_http2_scheduler_node_t *parent, uint16_t weight,
+                              int exclusive)
+{
+    init_node(&ref->node, parent);
+    ref->weight = weight;
+    ref->_all_link = (h2o_linklist_t){NULL};
+    ref->_active_cnt = 0;
+    ref->_self_is_active = 0;
+    ref->_queue_node = (h2o_http2_scheduler_queue_node_t){{NULL}};
+
+    h2o_linklist_insert(&parent->_all_refs, &ref->_all_link);
+
+    if (exclusive)
+        convert_to_exclusive(parent, ref);
+}
+
+void h2o_http2_scheduler_close(h2o_http2_scheduler_openref_t *ref)
+{
+    assert(h2o_http2_scheduler_is_open(ref));
+
+    /* move dependents to parent */
+    if (!h2o_linklist_is_empty(&ref->node._all_refs)) {
+        /* proportionally distribute the weight to the children (draft-16 5.3.4) */
+        uint32_t total_weight = 0, factor;
+        h2o_linklist_t *link;
+        for (link = ref->node._all_refs.next; link != &ref->node._all_refs; link = link->next) {
+            h2o_http2_scheduler_openref_t *child_ref = H2O_STRUCT_FROM_MEMBER(h2o_http2_scheduler_openref_t, _all_link, link);
+            total_weight += child_ref->weight;
+        }
+        assert(total_weight != 0);
+        factor = ((uint32_t)ref->weight * 65536 + total_weight / 2) / total_weight;
+        do {
+            h2o_http2_scheduler_openref_t *child_ref =
+                H2O_STRUCT_FROM_MEMBER(h2o_http2_scheduler_openref_t, _all_link, ref->node._all_refs.next);
+            uint16_t weight = (child_ref->weight * factor / 32768 + 1) / 2;
+            if (weight < 1)
+                weight = 1;
+            else if (weight > 256)
+                weight = 256;
+            h2o_http2_scheduler_rebind(child_ref, ref->node._parent, weight, 0);
+        } while (!h2o_linklist_is_empty(&ref->node._all_refs));
+    }
+
+    free(ref->node._queue);
+    ref->node._queue = NULL;
+
+    /* detach self */
+    h2o_linklist_unlink(&ref->_all_link);
+    if (ref->_self_is_active) {
+        assert(ref->_active_cnt == 1);
+        queue_unset(&ref->_queue_node);
+        decr_active_cnt(ref->node._parent);
+    } else {
+        assert(ref->_active_cnt == 0);
+    }
+}
+
+static void do_rebind(h2o_http2_scheduler_openref_t *ref, h2o_http2_scheduler_node_t *new_parent, int exclusive)
+{
+    /* rebind _all_link */
+    h2o_linklist_unlink(&ref->_all_link);
+    h2o_linklist_insert(&new_parent->_all_refs, &ref->_all_link);
+    /* rebind to WRR (as well as adjust active_cnt) */
+    if (ref->_active_cnt != 0) {
+        queue_unset(&ref->_queue_node);
+        queue_set(get_queue(new_parent), &ref->_queue_node, ref->weight);
+        decr_active_cnt(ref->node._parent);
+        incr_active_cnt(new_parent);
+    }
+    /* update the backlinks */
+    ref->node._parent = new_parent;
+
+    if (exclusive)
+        convert_to_exclusive(new_parent, ref);
+}
+
+void h2o_http2_scheduler_rebind(h2o_http2_scheduler_openref_t *ref, h2o_http2_scheduler_node_t *new_parent, uint16_t weight,
+                                int exclusive)
+{
+    assert(h2o_http2_scheduler_is_open(ref));
+    assert(&ref->node != new_parent);
+    assert(1 <= weight);
+    assert(weight <= 257);
+
+    /* do nothing if there'd be no change at all */
+    if (ref->node._parent == new_parent && ref->weight == weight && !exclusive)
+        return;
+
+    ref->weight = weight;
+
+    { /* if new_parent is dependent to ref, make new_parent a sibling of ref before applying the final transition (see draft-16
+         5.3.3) */
+        h2o_http2_scheduler_node_t *t;
+        for (t = new_parent; t->_parent != NULL; t = t->_parent) {
+            if (t->_parent == &ref->node) {
+                /* quoting the spec: "The moved dependency retains its weight." */
+                h2o_http2_scheduler_openref_t *new_parent_ref = (void *)new_parent;
+                do_rebind(new_parent_ref, ref->node._parent, 0);
+                break;
+            }
+        }
+    }
+
+    do_rebind(ref, new_parent, exclusive);
+}
+
+void h2o_http2_scheduler_init(h2o_http2_scheduler_node_t *root)
+{
+    init_node(root, NULL);
+}
+
+void h2o_http2_scheduler_dispose(h2o_http2_scheduler_node_t *root)
+{
+    free(root->_queue);
+    root->_queue = NULL;
+}
+
+void h2o_http2_scheduler_activate(h2o_http2_scheduler_openref_t *ref)
+{
+    if (ref->_self_is_active)
+        return;
+    ref->_self_is_active = 1;
+    incr_active_cnt(&ref->node);
+}
+
+static int proceed(h2o_http2_scheduler_node_t *node, h2o_http2_scheduler_run_cb cb, void *cb_arg)
+{
+Redo:
+    if (node->_queue == NULL)
+        return 0;
+
+    h2o_http2_scheduler_queue_node_t *drr_node = queue_pop(node->_queue);
+    if (drr_node == NULL)
+        return 0;
+
+    h2o_http2_scheduler_openref_t *ref = H2O_STRUCT_FROM_MEMBER(h2o_http2_scheduler_openref_t, _queue_node, drr_node);
+
+    if (!ref->_self_is_active) {
+        /* run the children (manually-unrolled tail recursion) */
+        queue_set(node->_queue, &ref->_queue_node, ref->weight);
+        node = &ref->node;
+        goto Redo;
+    }
+    assert(ref->_active_cnt != 0);
+
+    /* call the callbacks */
+    int still_is_active, bail_out = cb(ref, &still_is_active, cb_arg);
+    if (still_is_active) {
+        queue_set(node->_queue, &ref->_queue_node, ref->weight);
+    } else {
+        ref->_self_is_active = 0;
+        if (--ref->_active_cnt != 0) {
+            queue_set(node->_queue, &ref->_queue_node, ref->weight);
+        } else if (ref->node._parent != NULL) {
+            decr_active_cnt(ref->node._parent);
+        }
+    }
+
+    return bail_out;
+}
+
+int h2o_http2_scheduler_run(h2o_http2_scheduler_node_t *root, h2o_http2_scheduler_run_cb cb, void *cb_arg)
+{
+    if (root->_queue != NULL) {
+        while (!queue_is_empty(root->_queue)) {
+            int bail_out = proceed(root, cb, cb_arg);
+            if (bail_out)
+                return bail_out;
+        }
+    }
+    return 0;
+}
+
+int h2o_http2_scheduler_is_active(h2o_http2_scheduler_node_t *root)
+{
+    return root->_queue != NULL && !queue_is_empty(root->_queue);
+}
diff --git a/debian/vendor-h2o/lib/http2/stream.c b/debian/vendor-h2o/lib/http2/stream.c
new file mode 100644
index 0000000..1dfe2c3
--- /dev/null
+++ b/debian/vendor-h2o/lib/http2/stream.c
@@ -0,0 +1,410 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "h2o.h"
+#include "h2o/http2.h"
+#include "h2o/http2_internal.h"
+
+static void finalostream_start_pull(h2o_ostream_t *self, h2o_ostream_pull_cb cb);
+static void finalostream_send(h2o_ostream_t *self, h2o_req_t *req, h2o_iovec_t *bufs, size_t bufcnt, h2o_send_state_t state);
+
+static size_t sz_min(size_t x, size_t y)
+{
+    return x < y ? x : y;
+}
+
+h2o_http2_stream_t *h2o_http2_stream_open(h2o_http2_conn_t *conn, uint32_t stream_id, h2o_req_t *src_req,
+                                          const h2o_http2_priority_t *received_priority)
+{
+    h2o_http2_stream_t *stream = h2o_mem_alloc(sizeof(*stream));
+
+    /* init properties (other than req) */
+    memset(stream, 0, offsetof(h2o_http2_stream_t, req));
+    stream->stream_id = stream_id;
+    stream->_ostr_final.do_send = finalostream_send;
+    stream->_ostr_final.start_pull = finalostream_start_pull;
+    stream->state = H2O_HTTP2_STREAM_STATE_IDLE;
+    h2o_http2_window_init(&stream->output_window, &conn->peer_settings);
+    h2o_http2_window_init(&stream->input_window, &H2O_HTTP2_SETTINGS_HOST);
+    stream->received_priority = *received_priority;
+    stream->_expected_content_length = SIZE_MAX;
+
+    /* init request */
+    h2o_init_request(&stream->req, &conn->super, src_req);
+    stream->req.version = 0x200;
+    if (src_req != NULL)
+        memset(&stream->req.upgrade, 0, sizeof(stream->req.upgrade));
+    stream->req._ostr_top = &stream->_ostr_final;
+
+    h2o_http2_conn_register_stream(conn, stream);
+
+    ++conn->num_streams.priority.open;
+    stream->_num_streams_slot = &conn->num_streams.priority;
+
+    return stream;
+}
+
+void h2o_http2_stream_close(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
+{
+    h2o_http2_conn_unregister_stream(conn, stream);
+    if (stream->_req_body != NULL)
+        h2o_buffer_dispose(&stream->_req_body);
+    if (stream->cache_digests != NULL)
+        h2o_cache_digests_destroy(stream->cache_digests);
+    h2o_dispose_request(&stream->req);
+    if (stream->stream_id == 1 && conn->_http1_req_input != NULL)
+        h2o_buffer_dispose(&conn->_http1_req_input);
+    free(stream);
+}
+
+void h2o_http2_stream_reset(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
+{
+    switch (stream->state) {
+    case H2O_HTTP2_STREAM_STATE_IDLE:
+    case H2O_HTTP2_STREAM_STATE_RECV_HEADERS:
+    case H2O_HTTP2_STREAM_STATE_RECV_BODY:
+    case H2O_HTTP2_STREAM_STATE_REQ_PENDING:
+        h2o_http2_stream_close(conn, stream);
+        break;
+    case H2O_HTTP2_STREAM_STATE_SEND_HEADERS:
+    case H2O_HTTP2_STREAM_STATE_SEND_BODY:
+    case H2O_HTTP2_STREAM_STATE_SEND_BODY_IS_FINAL:
+        h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_END_STREAM);
+    /* continues */
+    case H2O_HTTP2_STREAM_STATE_END_STREAM:
+        /* clear all the queued bufs, and close the connection in the callback */
+        stream->_data.size = 0;
+        if (h2o_linklist_is_linked(&stream->_refs.link)) {
+            /* will be closed in the callback */
+        } else {
+            h2o_http2_stream_close(conn, stream);
+        }
+        break;
+    }
+}
+
+static size_t calc_max_payload_size(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
+{
+    ssize_t conn_max, stream_max;
+
+    if ((conn_max = h2o_http2_conn_get_buffer_window(conn)) <= 0)
+        return 0;
+    if ((stream_max = h2o_http2_window_get_window(&stream->output_window)) <= 0)
+        return 0;
+    return sz_min(sz_min(conn_max, stream_max), conn->peer_settings.max_frame_size);
+}
+
+static void commit_data_header(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream, h2o_buffer_t **outbuf, size_t length,
+                               h2o_send_state_t send_state)
+{
+    assert(outbuf != NULL);
+    /* send a DATA frame if there's data or the END_STREAM flag to send */
+    if (length || send_state == H2O_SEND_STATE_FINAL) {
+        h2o_http2_encode_frame_header((void *)((*outbuf)->bytes + (*outbuf)->size), length, H2O_HTTP2_FRAME_TYPE_DATA,
+                                      send_state == H2O_SEND_STATE_FINAL ? H2O_HTTP2_FRAME_FLAG_END_STREAM : 0, stream->stream_id);
+        h2o_http2_window_consume_window(&conn->_write.window, length);
+        h2o_http2_window_consume_window(&stream->output_window, length);
+        (*outbuf)->size += length + H2O_HTTP2_FRAME_HEADER_SIZE;
+        stream->req.bytes_sent += length;
+    }
+    /* send a RST_STREAM if there's an error */
+    if (send_state == H2O_SEND_STATE_ERROR) {
+        h2o_http2_encode_rst_stream_frame(outbuf, stream->stream_id, -H2O_HTTP2_ERROR_PROTOCOL);
+    }
+}
+
+static h2o_send_state_t send_data_pull(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
+{
+    size_t max_payload_size;
+    h2o_iovec_t cbuf;
+    h2o_send_state_t send_state = H2O_SEND_STATE_IN_PROGRESS;
+
+    if ((max_payload_size = calc_max_payload_size(conn, stream)) == 0)
+        goto Exit;
+    /* reserve buffer */
+    h2o_buffer_reserve(&conn->_write.buf, H2O_HTTP2_FRAME_HEADER_SIZE + max_payload_size);
+    /* obtain content */
+    cbuf.base = conn->_write.buf->bytes + conn->_write.buf->size + H2O_HTTP2_FRAME_HEADER_SIZE;
+    cbuf.len = max_payload_size;
+    send_state = h2o_pull(&stream->req, stream->_pull_cb, &cbuf);
+    /* write the header */
+    commit_data_header(conn, stream, &conn->_write.buf, cbuf.len, send_state);
+
+Exit:
+    return send_state;
+}
+
+static h2o_iovec_t *send_data_push(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream, h2o_iovec_t *bufs, size_t bufcnt,
+                                   h2o_send_state_t send_state)
+{
+    h2o_iovec_t dst;
+    size_t max_payload_size;
+
+    if ((max_payload_size = calc_max_payload_size(conn, stream)) == 0)
+        goto Exit;
+
+    /* reserve buffer and point dst to the payload */
+    dst.base =
+        h2o_buffer_reserve(&conn->_write.buf, H2O_HTTP2_FRAME_HEADER_SIZE + max_payload_size).base + H2O_HTTP2_FRAME_HEADER_SIZE;
+    dst.len = max_payload_size;
+
+    /* emit data */
+    while (bufcnt != 0) {
+        if (bufs->len != 0)
+            break;
+        ++bufs;
+        --bufcnt;
+    }
+    while (bufcnt != 0) {
+        size_t fill_size = sz_min(dst.len, bufs->len);
+        memcpy(dst.base, bufs->base, fill_size);
+        dst.base += fill_size;
+        dst.len -= fill_size;
+        bufs->base += fill_size;
+        bufs->len -= fill_size;
+        while (bufs->len == 0) {
+            ++bufs;
+            --bufcnt;
+            if (bufcnt == 0)
+                break;
+        }
+        if (dst.len == 0)
+            break;
+    }
+
+    /* commit the DATA frame if we have actually emitted payload */
+    if (dst.len != max_payload_size || !h2o_send_state_is_in_progress(send_state)) {
+        size_t payload_len = max_payload_size - dst.len;
+        if (bufcnt != 0) {
+            send_state = H2O_SEND_STATE_IN_PROGRESS;
+        }
+        commit_data_header(conn, stream, &conn->_write.buf, payload_len, send_state);
+    }
+
+Exit:
+    return bufs;
+}
+
+static int is_blocking_asset(h2o_req_t *req)
+{
+    if (req->res.mime_attr == NULL)
+        h2o_req_fill_mime_attributes(req);
+    return req->res.mime_attr->priority == H2O_MIME_ATTRIBUTE_PRIORITY_HIGHEST;
+}
+
+static int send_headers(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
+{
+    h2o_timestamp_t ts;
+
+    h2o_get_timestamp(conn->super.ctx, &stream->req.pool, &ts);
+
+    /* cancel push with an error response */
+    if (h2o_http2_stream_is_push(stream->stream_id)) {
+        if (400 <= stream->req.res.status)
+            goto CancelPush;
+        if (stream->cache_digests != NULL) {
+            ssize_t etag_index = h2o_find_header(&stream->req.headers, H2O_TOKEN_ETAG, -1);
+            if (etag_index != -1) {
+                h2o_iovec_t url = h2o_concat(&stream->req.pool, stream->req.input.scheme->name, h2o_iovec_init(H2O_STRLIT("://")),
+                                             stream->req.input.authority, stream->req.input.path);
+                h2o_iovec_t *etag = &stream->req.headers.entries[etag_index].value;
+                if (h2o_cache_digests_lookup_by_url_and_etag(stream->cache_digests, url.base, url.len, etag->base, etag->len) ==
+                    H2O_CACHE_DIGESTS_STATE_FRESH)
+                    goto CancelPush;
+            }
+        }
+    }
+
+    /* reset casper cookie in case cache-digests exist */
+    if (stream->cache_digests != NULL && stream->req.hostconf->http2.casper.capacity_bits != 0) {
+        h2o_add_header(&stream->req.pool, &stream->req.res.headers, H2O_TOKEN_SET_COOKIE, NULL,
+                       H2O_STRLIT("h2o_casper=; Path=/; Expires=Sat, 01 Jan 2000 00:00:00 GMT"));
+    }
+
+    /* CASPER */
+    if (conn->casper != NULL) {
+        /* update casper if necessary */
+        if (stream->req.hostconf->http2.casper.track_all_types || is_blocking_asset(&stream->req)) {
+            if (h2o_http2_casper_lookup(conn->casper, stream->req.path.base, stream->req.path.len, 1)) {
+                /* cancel if the pushed resource is already marked as cached */
+                if (h2o_http2_stream_is_push(stream->stream_id))
+                    goto CancelPush;
+            }
+        }
+        if (stream->cache_digests != NULL)
+            goto SkipCookie;
+        /* browsers might ignore push responses, or they may process the responses in a different order than they were pushed.
+         * Therefore H2O tries to include casper cookie only in the last stream that may be received by the client, or when the
+         * value become stable; see also: https://github.com/h2o/h2o/issues/421
+         */
+        if (h2o_http2_stream_is_push(stream->stream_id)) {
+            if (!(conn->num_streams.pull.open == 0 && (conn->num_streams.push.half_closed - conn->num_streams.push.send_body) == 1))
+                goto SkipCookie;
+        } else {
+            if (conn->num_streams.push.half_closed - conn->num_streams.push.send_body != 0)
+                goto SkipCookie;
+        }
+        h2o_iovec_t cookie = h2o_http2_casper_get_cookie(conn->casper);
+        h2o_add_header(&stream->req.pool, &stream->req.res.headers, H2O_TOKEN_SET_COOKIE, NULL, cookie.base, cookie.len);
+    SkipCookie:;
+    }
+
+    if (h2o_http2_stream_is_push(stream->stream_id)) {
+        /* for push, send the push promise */
+        if (!stream->push.promise_sent)
+            h2o_http2_stream_send_push_promise(conn, stream);
+        /* send ASAP if it is a blocking asset (even in case of Firefox we can't wait 1RTT for it to reprioritize the asset) */
+        if (is_blocking_asset(&stream->req))
+            h2o_http2_scheduler_rebind(&stream->_refs.scheduler, &conn->scheduler, 257, 0);
+    } else {
+        /* raise the priority of asset files that block rendering to highest if the user-agent is _not_ using dependency-based
+         * prioritization (e.g. that of Firefox)
+         */
+        if (conn->num_streams.priority.open == 0 && stream->req.hostconf->http2.reprioritize_blocking_assets &&
+            h2o_http2_scheduler_get_parent(&stream->_refs.scheduler) == &conn->scheduler && is_blocking_asset(&stream->req))
+            h2o_http2_scheduler_rebind(&stream->_refs.scheduler, &conn->scheduler, 257, 0);
+    }
+
+    /* send HEADERS, as well as start sending body */
+    if (h2o_http2_stream_is_push(stream->stream_id))
+        h2o_add_header_by_str(&stream->req.pool, &stream->req.res.headers, H2O_STRLIT("x-http2-push"), 0, NULL,
+                              H2O_STRLIT("pushed"));
+    h2o_hpack_flatten_response(&conn->_write.buf, &conn->_output_header_table, stream->stream_id,
+                               conn->peer_settings.max_frame_size, &stream->req.res, &ts, &conn->super.ctx->globalconf->server_name,
+                               stream->req.res.content_length);
+    h2o_http2_conn_request_write(conn);
+    h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_SEND_BODY);
+
+    return 0;
+
+CancelPush:
+    h2o_add_header_by_str(&stream->req.pool, &stream->req.res.headers, H2O_STRLIT("x-http2-push"), 0, NULL,
+                          H2O_STRLIT("cancelled"));
+    h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_END_STREAM);
+    h2o_linklist_insert(&conn->_write.streams_to_proceed, &stream->_refs.link);
+    if (stream->push.promise_sent) {
+        h2o_http2_encode_rst_stream_frame(&conn->_write.buf, stream->stream_id, -H2O_HTTP2_ERROR_INTERNAL);
+        h2o_http2_conn_request_write(conn);
+    }
+    return -1;
+}
+
+void finalostream_start_pull(h2o_ostream_t *self, h2o_ostream_pull_cb cb)
+{
+    h2o_http2_stream_t *stream = H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, _ostr_final, self);
+    h2o_http2_conn_t *conn = (void *)stream->req.conn;
+
+    assert(stream->req._ostr_top == &stream->_ostr_final);
+    assert(stream->state == H2O_HTTP2_STREAM_STATE_SEND_HEADERS);
+
+    /* register the pull callback */
+    stream->_pull_cb = cb;
+
+    /* send headers */
+    if (send_headers(conn, stream) != 0)
+        return;
+
+    /* set dummy data in the send buffer */
+    h2o_vector_reserve(&stream->req.pool, &stream->_data, 1);
+    stream->_data.entries[0].base = "<pull interface>";
+    stream->_data.entries[0].len = 1;
+    stream->_data.size = 1;
+
+    h2o_http2_conn_register_for_proceed_callback(conn, stream);
+}
+
+void finalostream_send(h2o_ostream_t *self, h2o_req_t *req, h2o_iovec_t *bufs, size_t bufcnt, h2o_send_state_t state)
+{
+    h2o_http2_stream_t *stream = H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, _ostr_final, self);
+    h2o_http2_conn_t *conn = (h2o_http2_conn_t *)req->conn;
+
+    assert(stream->_data.size == 0);
+
+    stream->send_state = state;
+
+    /* send headers */
+    switch (stream->state) {
+    case H2O_HTTP2_STREAM_STATE_SEND_HEADERS:
+        if (send_headers(conn, stream) != 0)
+            return;
+    /* fallthru */
+    case H2O_HTTP2_STREAM_STATE_SEND_BODY:
+        if (state != H2O_SEND_STATE_IN_PROGRESS) {
+            h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_SEND_BODY_IS_FINAL);
+        }
+        break;
+    case H2O_HTTP2_STREAM_STATE_END_STREAM:
+        /* might get set by h2o_http2_stream_reset */
+        return;
+    default:
+        assert(!"cannot be in a receiving state");
+    }
+
+    /* save the contents in queue */
+    if (bufcnt != 0) {
+        h2o_vector_reserve(&req->pool, &stream->_data, bufcnt);
+        memcpy(stream->_data.entries, bufs, sizeof(h2o_iovec_t) * bufcnt);
+        stream->_data.size = bufcnt;
+    }
+
+    h2o_http2_conn_register_for_proceed_callback(conn, stream);
+}
+
+void h2o_http2_stream_send_pending_data(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
+{
+    if (h2o_http2_window_get_window(&stream->output_window) <= 0)
+        return;
+
+    if (stream->_pull_cb != NULL) {
+        h2o_send_state_t send_state;
+        /* pull mode */
+        assert(stream->state != H2O_HTTP2_STREAM_STATE_END_STREAM);
+        send_state = send_data_pull(conn, stream);
+        if (send_state != H2O_SEND_STATE_IN_PROGRESS) {
+            /* sent all data */
+            stream->_data.size = 0;
+            h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_END_STREAM);
+        }
+    } else {
+        /* push mode */
+        h2o_iovec_t *nextbuf = send_data_push(conn, stream, stream->_data.entries, stream->_data.size, stream->send_state);
+        if (nextbuf == stream->_data.entries + stream->_data.size) {
+            /* sent all data */
+            stream->_data.size = 0;
+            if (stream->state == H2O_HTTP2_STREAM_STATE_SEND_BODY_IS_FINAL)
+                h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_END_STREAM);
+        } else if (nextbuf != stream->_data.entries) {
+            /* adjust the buffer */
+            size_t newsize = stream->_data.size - (nextbuf - stream->_data.entries);
+            memmove(stream->_data.entries, nextbuf, sizeof(h2o_iovec_t) * newsize);
+            stream->_data.size = newsize;
+        }
+    }
+}
+
+void h2o_http2_stream_proceed(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
+{
+    if (stream->state == H2O_HTTP2_STREAM_STATE_END_STREAM) {
+        h2o_http2_stream_close(conn, stream);
+    } else {
+        h2o_proceed_response(&stream->req);
+    }
+}
diff --git a/debian/vendor-h2o/lib/tunnel.c b/debian/vendor-h2o/lib/tunnel.c
new file mode 100644
index 0000000..aa86aaf
--- /dev/null
+++ b/debian/vendor-h2o/lib/tunnel.c
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2015 Justin Zhu, DeNA Co., Ltd., Kazuho Oku
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include "h2o.h"
+#include "h2o/http1.h"
+#include "h2o/tunnel.h"
+
+struct st_h2o_tunnel_t {
+    h2o_context_t *ctx;
+    h2o_timeout_entry_t timeout_entry;
+    h2o_timeout_t *timeout;
+    h2o_socket_t *sock[2];
+};
+
+static void on_write_complete(h2o_socket_t *sock, const char *err);
+
+static void close_connection(struct st_h2o_tunnel_t *tunnel)
+{
+    h2o_timeout_unlink(&tunnel->timeout_entry);
+
+    h2o_socket_close(tunnel->sock[0]);
+    h2o_socket_close(tunnel->sock[1]);
+
+    free(tunnel);
+}
+
+static void on_timeout(h2o_timeout_entry_t *entry)
+{
+    struct st_h2o_tunnel_t *tunnel = H2O_STRUCT_FROM_MEMBER(struct st_h2o_tunnel_t, timeout_entry, entry);
+    close_connection(tunnel);
+}
+
+static inline void reset_timeout(struct st_h2o_tunnel_t *tunnel)
+{
+    h2o_timeout_unlink(&tunnel->timeout_entry);
+    h2o_timeout_link(tunnel->ctx->loop, tunnel->timeout, &tunnel->timeout_entry);
+}
+
+static inline void on_read(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_tunnel_t *tunnel = sock->data;
+    h2o_socket_t *dst;
+    assert(tunnel != NULL);
+    assert(tunnel->sock[0] == sock || tunnel->sock[1] == sock);
+
+    if (err != NULL) {
+        close_connection(tunnel);
+        return;
+    }
+
+    if (sock->bytes_read == 0)
+        return;
+
+    h2o_socket_read_stop(sock);
+    reset_timeout(tunnel);
+
+    if (tunnel->sock[0] == sock)
+        dst = tunnel->sock[1];
+    else
+        dst = tunnel->sock[0];
+
+    h2o_iovec_t buf;
+    buf.base = sock->input->bytes;
+    buf.len = sock->input->size;
+    h2o_socket_write(dst, &buf, 1, on_write_complete);
+}
+
+static void on_write_complete(h2o_socket_t *sock, const char *err)
+{
+    struct st_h2o_tunnel_t *tunnel = sock->data;
+    h2o_socket_t *peer;
+    assert(tunnel != NULL);
+    assert(tunnel->sock[0] == sock || tunnel->sock[1] == sock);
+
+    if (err != NULL) {
+        close_connection(tunnel);
+        return;
+    }
+
+    reset_timeout(tunnel);
+
+    if (tunnel->sock[0] == sock)
+        peer = tunnel->sock[1];
+    else
+        peer = tunnel->sock[0];
+
+    h2o_buffer_consume(&peer->input, peer->input->size);
+    h2o_socket_read_start(peer, on_read);
+}
+
+h2o_tunnel_t *h2o_tunnel_establish(h2o_context_t *ctx, h2o_socket_t *sock1, h2o_socket_t *sock2, h2o_timeout_t *timeout)
+{
+    h2o_tunnel_t *tunnel = h2o_mem_alloc(sizeof(*tunnel));
+    tunnel->ctx = ctx;
+    tunnel->timeout = timeout;
+    tunnel->timeout_entry = (h2o_timeout_entry_t){0};
+    tunnel->timeout_entry.cb = on_timeout;
+    tunnel->sock[0] = sock1;
+    tunnel->sock[1] = sock2;
+    sock1->data = tunnel;
+    sock2->data = tunnel;
+    h2o_timeout_link(tunnel->ctx->loop, tunnel->timeout, &tunnel->timeout_entry);
+
+    /* Bring up the tunnel. Note. Upstream always ready first. */
+    if (sock2->input->size)
+        on_read(sock2, NULL);
+    if (sock1->input->size)
+        on_read(sock1, NULL);
+    h2o_socket_read_start(sock2, on_read);
+    h2o_socket_read_start(sock1, on_read);
+
+    return tunnel;
+}
+
+void h2o_tunnel_break(h2o_tunnel_t *tunnel)
+{
+    close_connection(tunnel);
+}
diff --git a/debian/vendor-h2o/lib/websocket.c b/debian/vendor-h2o/lib/websocket.c
new file mode 100644
index 0000000..2886acd
--- /dev/null
+++ b/debian/vendor-h2o/lib/websocket.c
@@ -0,0 +1,238 @@
+/*
+ * Copyright (c) 2014 DeNA Co., Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <openssl/sha.h>
+#include "h2o/websocket.h"
+
+#define WS_GUID "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"
+
+static void create_accept_key(char *dst, const char *client_key)
+{
+    uint8_t sha1buf[20], key_src[60];
+
+    memcpy(key_src, client_key, 24);
+    memcpy(key_src + 24, WS_GUID, 36);
+    SHA1(key_src, sizeof(key_src), sha1buf);
+    h2o_base64_encode(dst, sha1buf, sizeof(sha1buf), 0);
+    dst[28] = '\0';
+}
+
+static void on_close(h2o_websocket_conn_t *conn)
+{
+    (*conn->cb)(conn, NULL);
+}
+
+static void on_recv(h2o_socket_t *sock, const char *err)
+{
+    h2o_websocket_conn_t *conn = sock->data;
+
+    if (err != NULL) {
+        on_close(conn);
+        return;
+    }
+    h2o_websocket_proceed(conn);
+}
+
+static void on_write_complete(h2o_socket_t *sock, const char *err)
+{
+    h2o_websocket_conn_t *conn = sock->data;
+
+    if (err != NULL) {
+        on_close(conn);
+        return;
+    }
+    h2o_websocket_proceed(conn);
+}
+
+static ssize_t recv_callback(wslay_event_context_ptr ctx, uint8_t *buf, size_t len, int flags, void *_conn)
+{
+    h2o_websocket_conn_t *conn = _conn;
+
+    /* return WOULDBLOCK if no data */
+    if (conn->sock->input->size == 0) {
+        wslay_event_set_error(conn->ws_ctx, WSLAY_ERR_WOULDBLOCK);
+        return -1;
+    }
+
+    if (conn->sock->input->size < len)
+        len = conn->sock->input->size;
+    memcpy(buf, conn->sock->input->bytes, len);
+    h2o_buffer_consume(&conn->sock->input, len);
+    return len;
+}
+
+static ssize_t send_callback(wslay_event_context_ptr ctx, const uint8_t *data, size_t len, int flags, void *_conn)
+{
+    h2o_websocket_conn_t *conn = _conn;
+    h2o_iovec_t buf;
+
+    /* return WOULDBLOCK if pending (TODO: queue fixed number of chunks, instead of only one) */
+    if (h2o_socket_is_writing(conn->sock)) {
+        wslay_event_set_error(conn->ws_ctx, WSLAY_ERR_WOULDBLOCK);
+        return -1;
+    }
+
+    /* copy data */
+    conn->_write_buf = h2o_mem_realloc(conn->_write_buf, len);
+    memcpy(conn->_write_buf, data, len);
+
+    /* write */
+    buf.base = conn->_write_buf;
+    buf.len = len;
+    h2o_socket_write(conn->sock, &buf, 1, on_write_complete);
+
+    return len;
+}
+
+static void on_msg_callback(wslay_event_context_ptr ctx, const struct wslay_event_on_msg_recv_arg *arg, void *_conn)
+{
+    h2o_websocket_conn_t *conn = _conn;
+    (*conn->cb)(conn, arg);
+}
+
+static void on_complete(void *user_data, h2o_socket_t *sock, size_t reqsize)
+{
+    h2o_websocket_conn_t *conn = user_data;
+
+    /* close the connection on error */
+    if (sock == NULL) {
+        (*conn->cb)(conn, NULL);
+        return;
+    }
+
+    conn->sock = sock;
+    sock->data = conn;
+    h2o_buffer_consume(&sock->input, reqsize);
+    h2o_websocket_proceed(conn);
+}
+
+h2o_websocket_conn_t *h2o_upgrade_to_websocket(h2o_req_t *req, const char *client_key, void *data, h2o_websocket_msg_callback cb)
+{
+    h2o_websocket_conn_t *conn = h2o_mem_alloc(sizeof(*conn));
+    char accept_key[29];
+
+    /* only for http1 connection */
+    assert(req->version < 0x200);
+
+    /* setup the context */
+    memset(conn, 0, sizeof(*conn));
+    // conn->sock = sock; set by on_complete
+    conn->ws_callbacks.recv_callback = recv_callback;
+    conn->ws_callbacks.send_callback = send_callback;
+    conn->ws_callbacks.on_msg_recv_callback = on_msg_callback;
+    conn->data = data;
+    conn->cb = cb;
+
+    wslay_event_context_server_init(&conn->ws_ctx, &conn->ws_callbacks, conn);
+
+    /* build response */
+    create_accept_key(accept_key, client_key);
+    req->res.status = 101;
+    req->res.reason = "Switching Protocols";
+    h2o_add_header(&req->pool, &req->res.headers, H2O_TOKEN_UPGRADE, NULL, H2O_STRLIT("websocket"));
+    h2o_add_header_by_str(&req->pool, &req->res.headers, H2O_STRLIT("sec-websocket-accept"), 0, NULL, accept_key,
+                          strlen(accept_key));
+
+    /* send */
+    h2o_http1_upgrade(req, NULL, 0, on_complete, conn);
+
+    return conn;
+}
+
+int h2o_is_websocket_handshake(h2o_req_t *req, const char **ws_client_key)
+{
+    ssize_t key_header_index;
+
+    *ws_client_key = NULL;
+
+    /* method */
+    if (h2o_memis(req->input.method.base, req->input.method.len, H2O_STRLIT("GET"))) {
+        /* ok */
+    } else {
+        return 0;
+    }
+
+    /* upgrade header */
+    if (req->upgrade.base != NULL && h2o_lcstris(req->upgrade.base, req->upgrade.len, H2O_STRLIT("websocket"))) {
+        /* ok */
+    } else {
+        return 0;
+    }
+    /* sec-websocket-key header */
+    if ((key_header_index = h2o_find_header_by_str(&req->headers, H2O_STRLIT("sec-websocket-key"), -1)) != -1) {
+        if (req->headers.entries[key_header_index].value.len != 24) {
+            return -1;
+        }
+    } else {
+        return 0;
+    }
+
+    *ws_client_key = req->headers.entries[key_header_index].value.base;
+    return 0;
+}
+
+void h2o_websocket_close(h2o_websocket_conn_t *conn)
+{
+    if (conn->sock != NULL)
+        h2o_socket_close(conn->sock);
+    free(conn->_write_buf);
+    wslay_event_context_free(conn->ws_ctx);
+    free(conn);
+}
+
+void h2o_websocket_proceed(h2o_websocket_conn_t *conn)
+{
+    int handled;
+
+    /* run the loop until getting to a point where no more progress can be achieved */
+    do {
+        handled = 0;
+        if (!h2o_socket_is_writing(conn->sock) && wslay_event_want_write(conn->ws_ctx)) {
+            if (wslay_event_send(conn->ws_ctx) != 0) {
+                goto Close;
+            }
+            handled = 1;
+        }
+        if (conn->sock->input->size != 0 && wslay_event_want_read(conn->ws_ctx)) {
+            if (wslay_event_recv(conn->ws_ctx) != 0) {
+                goto Close;
+            }
+            handled = 1;
+        }
+    } while (handled);
+
+    if (wslay_event_want_read(conn->ws_ctx)) {
+        h2o_socket_read_start(conn->sock, on_recv);
+    } else if (h2o_socket_is_writing(conn->sock) || wslay_event_want_write(conn->ws_ctx)) {
+        h2o_socket_read_stop(conn->sock);
+    } else {
+        /* nothing is going on... close the socket */
+        goto Close;
+    }
+
+    return;
+
+Close:
+    on_close(conn);
+}