Adding upstream version 14.2.upstream/14.2upstream

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

1 files changed, 2747 insertions, 0 deletions

diff --git a/src/utils/padsp.c b/src/utils/padsp.c
new file mode 100644
index 0000000..a53b161
--- /dev/null
+++ b/src/utils/padsp.c
@@ -0,0 +1,2747 @@
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2006 Lennart Poettering
+  Copyright 2006-2007 Pierre Ossman <ossman@cendio.se> for Cendio AB
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published
+  by the Free Software Foundation; either version 2.1 of the License,
+  or (at your option) any later version.
+
+  PulseAudio is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifdef _FILE_OFFSET_BITS
+#undef _FILE_OFFSET_BITS
+#endif
+
+#ifndef _LARGEFILE64_SOURCE
+#define _LARGEFILE64_SOURCE 1
+#endif
+
+#include <sys/soundcard.h>
+#include <sys/ioctl.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <dlfcn.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <signal.h>
+
+#ifdef __linux__
+#include <linux/sockios.h>
+#endif
+
+#include <pulse/pulseaudio.h>
+#include <pulse/gccmacro.h>
+#include <pulsecore/llist.h>
+#include <pulsecore/core-util.h>
+#include <pulsecore/sample-util.h>
+
+/* On some systems SIOCINQ isn't defined, but FIONREAD is just an alias */
+#if !defined(SIOCINQ) && defined(FIONREAD)
+# define SIOCINQ FIONREAD
+#endif
+
+/* make sure gcc doesn't redefine open and friends as macros */
+#undef open
+#undef open64
+
+typedef enum {
+    FD_INFO_MIXER,
+    FD_INFO_STREAM,
+} fd_info_type_t;
+
+typedef struct fd_info fd_info;
+
+struct fd_info {
+    pthread_mutex_t mutex;
+    int ref;
+    int unusable;
+
+    fd_info_type_t type;
+    int app_fd, thread_fd;
+
+    pa_sample_spec sample_spec;
+    size_t fragment_size;
+    unsigned n_fragments;
+
+    pa_threaded_mainloop *mainloop;
+    pa_context *context;
+    pa_stream *play_stream;
+    pa_stream *rec_stream;
+    int play_precork;
+    int rec_precork;
+
+    pa_io_event *io_event;
+    pa_io_event_flags_t io_flags;
+
+    void *buf;
+    size_t leftover;
+    size_t rec_offset;
+
+    int operation_success;
+
+    pa_cvolume sink_volume, source_volume;
+    uint32_t sink_index, source_index;
+    int volume_modify_count;
+
+    int optr_n_blocks;
+
+    PA_LLIST_FIELDS(fd_info);
+};
+
+static int dsp_drain(fd_info *i);
+static void fd_info_remove_from_list(fd_info *i);
+
+static pthread_mutex_t fd_infos_mutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_mutex_t func_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+static PA_LLIST_HEAD(fd_info, fd_infos) = NULL;
+
+static int (*_ioctl)(int, int, void*) = NULL;
+static int (*_close)(int) = NULL;
+static int (*_open)(const char *, int, mode_t) = NULL;
+static int (*___open_2)(const char *, int) = NULL;
+static FILE* (*_fopen)(const char *path, const char *mode) = NULL;
+static int (*_stat)(const char *, struct stat *) = NULL;
+#ifdef _STAT_VER
+static int (*___xstat)(int, const char *, struct stat *) = NULL;
+#endif
+#ifdef HAVE_OPEN64
+static int (*_open64)(const char *, int, mode_t) = NULL;
+static int (*___open64_2)(const char *, int) = NULL;
+static FILE* (*_fopen64)(const char *path, const char *mode) = NULL;
+static int (*_stat64)(const char *, struct stat64 *) = NULL;
+#ifdef _STAT_VER
+static int (*___xstat64)(int, const char *, struct stat64 *) = NULL;
+#endif
+#endif
+static int (*_fclose)(FILE *f) = NULL;
+static int (*_access)(const char *, int) = NULL;
+
+/* dlsym() violates ISO C, so confide the breakage into this function to
+ * avoid warnings. */
+typedef void (*fnptr)(void);
+static inline fnptr dlsym_fn(void *handle, const char *symbol) {
+    return (fnptr) (long) dlsym(handle, symbol);
+}
+
+#define LOAD_IOCTL_FUNC() \
+do { \
+    pthread_mutex_lock(&func_mutex); \
+    if (!_ioctl)  \
+        _ioctl = (int (*)(int, int, void*)) dlsym_fn(RTLD_NEXT, "ioctl"); \
+    pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_OPEN_FUNC() \
+do { \
+    pthread_mutex_lock(&func_mutex); \
+    if (!_open) \
+        _open = (int (*)(const char *, int, mode_t)) dlsym_fn(RTLD_NEXT, "open"); \
+    pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD___OPEN_2_FUNC() \
+do { \
+    pthread_mutex_lock(&func_mutex); \
+    if (!___open_2) \
+        ___open_2 = (int (*)(const char *, int)) dlsym_fn(RTLD_NEXT, "__open_2"); \
+    pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_OPEN64_FUNC() \
+do { \
+    pthread_mutex_lock(&func_mutex); \
+    if (!_open64) \
+        _open64 = (int (*)(const char *, int, mode_t)) dlsym_fn(RTLD_NEXT, "open64"); \
+    pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD___OPEN64_2_FUNC() \
+do { \
+    pthread_mutex_lock(&func_mutex); \
+    if (!___open64_2) \
+        ___open64_2 = (int (*)(const char *, int)) dlsym_fn(RTLD_NEXT, "__open64_2"); \
+    pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_CLOSE_FUNC() \
+do { \
+    pthread_mutex_lock(&func_mutex); \
+    if (!_close) \
+        _close = (int (*)(int)) dlsym_fn(RTLD_NEXT, "close"); \
+    pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_ACCESS_FUNC() \
+do { \
+    pthread_mutex_lock(&func_mutex); \
+    if (!_access) \
+        _access = (int (*)(const char*, int)) dlsym_fn(RTLD_NEXT, "access"); \
+    pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_STAT_FUNC() \
+do { \
+    pthread_mutex_lock(&func_mutex); \
+    if (!_stat) \
+        _stat = (int (*)(const char *, struct stat *)) dlsym_fn(RTLD_NEXT, "stat"); \
+    pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_STAT64_FUNC() \
+do { \
+    pthread_mutex_lock(&func_mutex); \
+    if (!_stat64) \
+        _stat64 = (int (*)(const char *, struct stat64 *)) dlsym_fn(RTLD_NEXT, "stat64"); \
+    pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_XSTAT_FUNC() \
+do { \
+    pthread_mutex_lock(&func_mutex); \
+    if (!___xstat) \
+        ___xstat = (int (*)(int, const char *, struct stat *)) dlsym_fn(RTLD_NEXT, "__xstat"); \
+    pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_XSTAT64_FUNC() \
+do { \
+    pthread_mutex_lock(&func_mutex); \
+    if (!___xstat64) \
+        ___xstat64 = (int (*)(int, const char *, struct stat64 *)) dlsym_fn(RTLD_NEXT, "__xstat64"); \
+    pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_FOPEN_FUNC() \
+do { \
+    pthread_mutex_lock(&func_mutex); \
+    if (!_fopen) \
+        _fopen = (FILE* (*)(const char *, const char*)) dlsym_fn(RTLD_NEXT, "fopen"); \
+    pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_FOPEN64_FUNC() \
+do { \
+    pthread_mutex_lock(&func_mutex); \
+    if (!_fopen64) \
+        _fopen64 = (FILE* (*)(const char *, const char*)) dlsym_fn(RTLD_NEXT, "fopen64"); \
+    pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define LOAD_FCLOSE_FUNC() \
+do { \
+    pthread_mutex_lock(&func_mutex); \
+    if (!_fclose) \
+        _fclose = (int (*)(FILE *)) dlsym_fn(RTLD_NEXT, "fclose"); \
+    pthread_mutex_unlock(&func_mutex); \
+} while(0)
+
+#define CONTEXT_CHECK_DEAD_GOTO(i, label) do { \
+if (!(i)->context || pa_context_get_state((i)->context) != PA_CONTEXT_READY) { \
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": Not connected: %s\n", (i)->context ? pa_strerror(pa_context_errno((i)->context)) : "NULL"); \
+    goto label; \
+} \
+} while(0)
+
+#define PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, label) do { \
+if (!(i)->context || pa_context_get_state((i)->context) != PA_CONTEXT_READY || \
+    !(i)->play_stream || pa_stream_get_state((i)->play_stream) != PA_STREAM_READY) { \
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": Not connected: %s\n", (i)->context ? pa_strerror(pa_context_errno((i)->context)) : "NULL"); \
+    goto label; \
+} \
+} while(0)
+
+#define RECORD_STREAM_CHECK_DEAD_GOTO(i, label) do { \
+if (!(i)->context || pa_context_get_state((i)->context) != PA_CONTEXT_READY || \
+    !(i)->rec_stream || pa_stream_get_state((i)->rec_stream) != PA_STREAM_READY) { \
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": Not connected: %s\n", (i)->context ? pa_strerror(pa_context_errno((i)->context)) : "NULL"); \
+    goto label; \
+} \
+} while(0)
+
+static void debug(int level, const char *format, ...) PA_GCC_PRINTF_ATTR(2,3);
+
+#define DEBUG_LEVEL_ALWAYS                0
+#define DEBUG_LEVEL_NORMAL                1
+#define DEBUG_LEVEL_VERBOSE               2
+
+static void debug(int level, const char *format, ...) {
+    va_list ap;
+    const char *dlevel_s;
+    int dlevel;
+
+    dlevel_s = getenv("PADSP_DEBUG");
+    if (!dlevel_s)
+        return;
+
+    dlevel = atoi(dlevel_s);
+
+    if (dlevel < level)
+        return;
+
+    va_start(ap, format);
+    vfprintf(stderr, format, ap);
+    va_end(ap);
+}
+
+static int padsp_disabled(void) {
+    static int *sym;
+    static int sym_resolved = 0;
+
+    /* If the current process has a symbol __padsp_disabled__ we use
+     * it to detect whether we should enable our stuff or not. A
+     * program needs to be compiled with -rdynamic for this to work!
+     * The symbol must be an int containing a three bit bitmask: bit 1
+     * -> disable /dev/dsp emulation, bit 2 -> disable /dev/sndstat
+     * emulation, bit 3 -> disable /dev/mixer emulation. Hence a value
+     * of 7 disables padsp entirely. */
+
+    pthread_mutex_lock(&func_mutex);
+    if (!sym_resolved) {
+        sym = (int*) dlsym(RTLD_DEFAULT, "__padsp_disabled__");
+        sym_resolved = 1;
+    }
+    pthread_mutex_unlock(&func_mutex);
+
+    if (!sym)
+        return 0;
+
+    return *sym;
+}
+
+static int dsp_cloak_enable(void) {
+    if (padsp_disabled() & 1)
+        return 0;
+
+    if (getenv("PADSP_NO_DSP") || getenv("PULSE_INTERNAL"))
+        return 0;
+
+    return 1;
+}
+
+static int sndstat_cloak_enable(void) {
+    if (padsp_disabled() & 2)
+        return 0;
+
+    if (getenv("PADSP_NO_SNDSTAT") || getenv("PULSE_INTERNAL"))
+        return 0;
+
+    return 1;
+}
+
+static int mixer_cloak_enable(void) {
+    if (padsp_disabled() & 4)
+        return 0;
+
+    if (getenv("PADSP_NO_MIXER") || getenv("PULSE_INTERNAL"))
+        return 0;
+
+    return 1;
+}
+static pthread_key_t recursion_key;
+
+static void recursion_key_alloc(void) {
+    pthread_key_create(&recursion_key, NULL);
+}
+
+static int function_enter(void) {
+    /* Avoid recursive calls */
+    static pthread_once_t recursion_key_once = PTHREAD_ONCE_INIT;
+    pthread_once(&recursion_key_once, recursion_key_alloc);
+
+    if (pthread_getspecific(recursion_key))
+        return 0;
+
+    pthread_setspecific(recursion_key, (void*) 1);
+    return 1;
+}
+
+static void function_exit(void) {
+    pthread_setspecific(recursion_key, NULL);
+}
+
+static void fd_info_free(fd_info *i) {
+    assert(i);
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": freeing fd info (fd=%i)\n", i->app_fd);
+
+    dsp_drain(i);
+
+    if (i->mainloop)
+        pa_threaded_mainloop_stop(i->mainloop);
+
+    if (i->play_stream) {
+        pa_stream_disconnect(i->play_stream);
+        pa_stream_unref(i->play_stream);
+    }
+
+    if (i->rec_stream) {
+        pa_stream_disconnect(i->rec_stream);
+        pa_stream_unref(i->rec_stream);
+    }
+
+    if (i->context) {
+        pa_context_disconnect(i->context);
+        pa_context_unref(i->context);
+    }
+
+    if (i->mainloop)
+        pa_threaded_mainloop_free(i->mainloop);
+
+    if (i->app_fd >= 0) {
+        LOAD_CLOSE_FUNC();
+        _close(i->app_fd);
+    }
+
+    if (i->thread_fd >= 0) {
+        LOAD_CLOSE_FUNC();
+        _close(i->thread_fd);
+    }
+
+    free(i->buf);
+
+    pthread_mutex_destroy(&i->mutex);
+    free(i);
+}
+
+static fd_info *fd_info_ref(fd_info *i) {
+    assert(i);
+
+    pthread_mutex_lock(&i->mutex);
+    assert(i->ref >= 1);
+    i->ref++;
+
+    debug(DEBUG_LEVEL_VERBOSE, __FILE__": ref++, now %i\n", i->ref);
+    pthread_mutex_unlock(&i->mutex);
+
+    return i;
+}
+
+static void fd_info_unref(fd_info *i) {
+    int r;
+    pthread_mutex_lock(&i->mutex);
+    assert(i->ref >= 1);
+    r = --i->ref;
+    debug(DEBUG_LEVEL_VERBOSE, __FILE__": ref--, now %i\n", i->ref);
+    pthread_mutex_unlock(&i->mutex);
+
+    if (r <= 0)
+        fd_info_free(i);
+}
+
+static void context_state_cb(pa_context *c, void *userdata) {
+    fd_info *i = userdata;
+    assert(c);
+
+    switch (pa_context_get_state(c)) {
+        case PA_CONTEXT_READY:
+        case PA_CONTEXT_TERMINATED:
+        case PA_CONTEXT_FAILED:
+            pa_threaded_mainloop_signal(i->mainloop, 0);
+            break;
+
+        case PA_CONTEXT_UNCONNECTED:
+        case PA_CONTEXT_CONNECTING:
+        case PA_CONTEXT_AUTHORIZING:
+        case PA_CONTEXT_SETTING_NAME:
+            break;
+    }
+}
+
+static void reset_params(fd_info *i) {
+    assert(i);
+
+    i->sample_spec.format = PA_SAMPLE_U8;
+    i->sample_spec.channels = 1;
+    i->sample_spec.rate = 8000;
+    i->fragment_size = 0;
+    i->n_fragments = 0;
+}
+
+static const char *client_name(char *buf, size_t n) {
+    char *p;
+    const char *e;
+
+    if ((e = getenv("PADSP_CLIENT_NAME")))
+        return e;
+
+    if ((p = pa_get_binary_name_malloc())) {
+        snprintf(buf, n, "OSS Emulation[%s]", p);
+        pa_xfree(p);
+    } else
+        snprintf(buf, n, "OSS");
+
+    return buf;
+}
+
+static const char *stream_name(void) {
+    const char *e;
+
+    if ((e = getenv("PADSP_STREAM_NAME")))
+        return e;
+
+    return "Audio Stream";
+}
+
+static void atfork_prepare(void) {
+    fd_info *i;
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_prepare() enter\n");
+
+    function_enter();
+
+    pthread_mutex_lock(&fd_infos_mutex);
+
+    for (i = fd_infos; i; i = i->next) {
+        pthread_mutex_lock(&i->mutex);
+        pa_threaded_mainloop_lock(i->mainloop);
+    }
+
+    pthread_mutex_lock(&func_mutex);
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_prepare() exit\n");
+}
+
+static void atfork_parent(void) {
+    fd_info *i;
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_parent() enter\n");
+
+    pthread_mutex_unlock(&func_mutex);
+
+    for (i = fd_infos; i; i = i->next) {
+        pa_threaded_mainloop_unlock(i->mainloop);
+        pthread_mutex_unlock(&i->mutex);
+    }
+
+    pthread_mutex_unlock(&fd_infos_mutex);
+
+    function_exit();
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_parent() exit\n");
+}
+
+static void atfork_child(void) {
+    fd_info *i;
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_child() enter\n");
+
+    /* We do only the bare minimum to get all fds closed */
+    pthread_mutex_init(&func_mutex, NULL);
+    pthread_mutex_init(&fd_infos_mutex, NULL);
+
+    for (i = fd_infos; i; i = i->next) {
+        pthread_mutex_init(&i->mutex, NULL);
+
+        if (i->context) {
+            pa_context_disconnect(i->context);
+            pa_context_unref(i->context);
+            i->context = NULL;
+        }
+
+        if (i->play_stream) {
+            pa_stream_unref(i->play_stream);
+            i->play_stream = NULL;
+        }
+
+        if (i->rec_stream) {
+            pa_stream_unref(i->rec_stream);
+            i->rec_stream = NULL;
+        }
+
+        if (i->app_fd >= 0) {
+            LOAD_CLOSE_FUNC();
+            _close(i->app_fd);
+            i->app_fd = -1;
+        }
+
+        if (i->thread_fd >= 0) {
+            LOAD_CLOSE_FUNC();
+            _close(i->thread_fd);
+            i->thread_fd = -1;
+        }
+
+        i->unusable = 1;
+    }
+
+    function_exit();
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": atfork_child() exit\n");
+}
+
+static void install_atfork(void) {
+    pthread_atfork(atfork_prepare, atfork_parent, atfork_child);
+}
+
+static void stream_success_cb(pa_stream *s, int success, void *userdata) {
+    fd_info *i = userdata;
+
+    assert(s);
+    assert(i);
+
+    i->operation_success = success;
+    pa_threaded_mainloop_signal(i->mainloop, 0);
+}
+
+static void context_success_cb(pa_context *c, int success, void *userdata) {
+    fd_info *i = userdata;
+
+    assert(c);
+    assert(i);
+
+    i->operation_success = success;
+    pa_threaded_mainloop_signal(i->mainloop, 0);
+}
+
+static fd_info* fd_info_new(fd_info_type_t type, int *_errno) {
+    fd_info *i;
+    int sfds[2] = { -1, -1 };
+    char name[64];
+    static pthread_once_t install_atfork_once = PTHREAD_ONCE_INIT;
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": fd_info_new()\n");
+
+    signal(SIGPIPE, SIG_IGN); /* Yes, ugly as hell */
+
+    pthread_once(&install_atfork_once, install_atfork);
+
+    if (!(i = malloc(sizeof(fd_info)))) {
+        *_errno = ENOMEM;
+        goto fail;
+    }
+
+    i->app_fd = i->thread_fd = -1;
+    i->type = type;
+
+    i->mainloop = NULL;
+    i->context = NULL;
+    i->play_stream = NULL;
+    i->rec_stream = NULL;
+    i->play_precork = 0;
+    i->rec_precork = 0;
+    i->io_event = NULL;
+    i->io_flags = 0;
+    pthread_mutex_init(&i->mutex, NULL);
+    i->ref = 1;
+    i->buf = NULL;
+    i->leftover = 0;
+    i->rec_offset = 0;
+    i->unusable = 0;
+    pa_cvolume_reset(&i->sink_volume, 2);
+    pa_cvolume_reset(&i->source_volume, 2);
+    i->volume_modify_count = 0;
+    i->sink_index = (uint32_t) -1;
+    i->source_index = (uint32_t) -1;
+    i->optr_n_blocks = 0;
+    PA_LLIST_INIT(fd_info, i);
+
+    reset_params(i);
+
+    if (socketpair(AF_UNIX, SOCK_STREAM, 0, sfds) < 0) {
+        *_errno = errno;
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": socket() failed: %s\n", strerror(errno));
+        goto fail;
+    }
+
+    i->app_fd = sfds[0];
+    i->thread_fd = sfds[1];
+
+    if (!(i->mainloop = pa_threaded_mainloop_new())) {
+        *_errno = EIO;
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_threaded_mainloop_new() failed\n");
+        goto fail;
+    }
+
+    if (!(i->context = pa_context_new(pa_threaded_mainloop_get_api(i->mainloop), client_name(name, sizeof(name))))) {
+        *_errno = EIO;
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_context_new() failed\n");
+        goto fail;
+    }
+
+    pa_context_set_state_callback(i->context, context_state_cb, i);
+
+    if (pa_context_connect(i->context, NULL, 0, NULL) < 0) {
+        *_errno = ECONNREFUSED;
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_context_connect() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
+        goto fail;
+    }
+
+    pa_threaded_mainloop_lock(i->mainloop);
+
+    if (pa_threaded_mainloop_start(i->mainloop) < 0) {
+        *_errno = EIO;
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_threaded_mainloop_start() failed\n");
+        goto unlock_and_fail;
+    }
+
+    /* Wait until the context is ready */
+    pa_threaded_mainloop_wait(i->mainloop);
+
+    if (pa_context_get_state(i->context) != PA_CONTEXT_READY) {
+        *_errno = ECONNREFUSED;
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_context_connect() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
+        goto unlock_and_fail;
+    }
+
+    pa_threaded_mainloop_unlock(i->mainloop);
+    return i;
+
+unlock_and_fail:
+
+    pa_threaded_mainloop_unlock(i->mainloop);
+
+fail:
+
+    if (i)
+        fd_info_unref(i);
+
+    return NULL;
+}
+
+static void fd_info_add_to_list(fd_info *i) {
+    assert(i);
+
+    pthread_mutex_lock(&fd_infos_mutex);
+    PA_LLIST_PREPEND(fd_info, fd_infos, i);
+    pthread_mutex_unlock(&fd_infos_mutex);
+
+    fd_info_ref(i);
+}
+
+static void fd_info_remove_from_list(fd_info *i) {
+    assert(i);
+
+    pthread_mutex_lock(&fd_infos_mutex);
+    PA_LLIST_REMOVE(fd_info, fd_infos, i);
+    pthread_mutex_unlock(&fd_infos_mutex);
+
+    fd_info_unref(i);
+}
+
+static fd_info* fd_info_find(int fd) {
+    fd_info *i;
+
+    pthread_mutex_lock(&fd_infos_mutex);
+
+    for (i = fd_infos; i; i = i->next)
+        if (i->app_fd == fd && !i->unusable) {
+            fd_info_ref(i);
+            break;
+        }
+
+    pthread_mutex_unlock(&fd_infos_mutex);
+
+    return i;
+}
+
+static void fix_metrics(fd_info *i) {
+    size_t fs;
+    char t[PA_SAMPLE_SPEC_SNPRINT_MAX];
+
+    fs = pa_frame_size(&i->sample_spec);
+
+    /* Don't fix things more than necessary */
+    if ((i->fragment_size % fs) == 0 &&
+        i->n_fragments >= 2 &&
+        i->fragment_size > 0)
+        return;
+
+    i->fragment_size = (i->fragment_size/fs)*fs;
+
+    /* Number of fragments set? */
+    if (i->n_fragments < 2) {
+        if (i->fragment_size > 0) {
+            i->n_fragments = (unsigned) (pa_bytes_per_second(&i->sample_spec) / 2 / i->fragment_size);
+            if (i->n_fragments < 2)
+                i->n_fragments = 2;
+        } else
+            i->n_fragments = 12;
+    }
+
+    /* Fragment size set? */
+    if (i->fragment_size <= 0) {
+        i->fragment_size = pa_bytes_per_second(&i->sample_spec) / 2 / i->n_fragments;
+        if (i->fragment_size < 1024)
+            i->fragment_size = 1024;
+    }
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": sample spec: %s\n", pa_sample_spec_snprint(t, sizeof(t), &i->sample_spec));
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": fixated metrics to %i fragments, %li bytes each.\n", i->n_fragments, (long)i->fragment_size);
+}
+
+static void stream_request_cb(pa_stream *s, size_t length, void *userdata) {
+    fd_info *i = userdata;
+    assert(s);
+
+    if (i->io_event) {
+        pa_mainloop_api *api;
+        size_t n;
+
+        api = pa_threaded_mainloop_get_api(i->mainloop);
+
+        if (s == i->play_stream) {
+            n = pa_stream_writable_size(i->play_stream);
+            if (n == (size_t)-1) {
+                debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_writable_size(): %s\n",
+                    pa_strerror(pa_context_errno(i->context)));
+            }
+
+            if (n >= i->fragment_size)
+                i->io_flags |= PA_IO_EVENT_INPUT;
+            else
+                i->io_flags &= ~PA_IO_EVENT_INPUT;
+        }
+
+        if (s == i->rec_stream) {
+            n = pa_stream_readable_size(i->rec_stream);
+            if (n == (size_t)-1) {
+                debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_readable_size(): %s\n",
+                    pa_strerror(pa_context_errno(i->context)));
+            }
+
+            if (n >= i->fragment_size)
+                i->io_flags |= PA_IO_EVENT_OUTPUT;
+            else
+                i->io_flags &= ~PA_IO_EVENT_OUTPUT;
+        }
+
+        api->io_enable(i->io_event, i->io_flags);
+    }
+}
+
+static void stream_latency_update_cb(pa_stream *s, void *userdata) {
+    fd_info *i = userdata;
+    assert(s);
+
+    pa_threaded_mainloop_signal(i->mainloop, 0);
+}
+
+static void fd_info_shutdown(fd_info *i) {
+    assert(i);
+
+    if (i->io_event) {
+        pa_mainloop_api *api;
+        api = pa_threaded_mainloop_get_api(i->mainloop);
+        api->io_free(i->io_event);
+        i->io_event = NULL;
+        i->io_flags = 0;
+    }
+
+    if (i->thread_fd >= 0) {
+        close(i->thread_fd);
+        i->thread_fd = -1;
+    }
+}
+
+static int fd_info_copy_data(fd_info *i, int force) {
+    size_t n;
+
+    if (!i->play_stream && !i->rec_stream)
+        return -1;
+
+    if ((i->play_stream) && (pa_stream_get_state(i->play_stream) == PA_STREAM_READY)) {
+        n = pa_stream_writable_size(i->play_stream);
+
+        if (n == (size_t)-1) {
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_writable_size(): %s\n",
+                pa_strerror(pa_context_errno(i->context)));
+            return -1;
+        }
+
+        while (n >= i->fragment_size || force) {
+            ssize_t r;
+            size_t to_write;
+
+            if (!i->buf) {
+                if (!(i->buf = malloc(i->fragment_size))) {
+                    debug(DEBUG_LEVEL_NORMAL, __FILE__": malloc() failed.\n");
+                    return -1;
+                }
+
+                i->leftover = 0;
+            }
+
+            if ((r = read(i->thread_fd, ((uint8_t *) i->buf) + i->leftover, i->fragment_size - i->leftover)) <= 0) {
+
+                if (errno == EAGAIN)
+                    break;
+
+                debug(DEBUG_LEVEL_NORMAL, __FILE__": read(): %s\n", r == 0 ? "EOF" : strerror(errno));
+                return -1;
+            }
+
+            to_write = pa_frame_align(r + i->leftover, &i->sample_spec);
+
+            if (pa_stream_write(i->play_stream, i->buf, to_write, NULL, 0LL, PA_SEEK_RELATIVE) < 0) {
+                debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_write(): %s\n", pa_strerror(pa_context_errno(i->context)));
+                return -1;
+            }
+
+            i->leftover += r - to_write;
+            if (i->leftover)
+                memmove(i->buf, ((uint8_t *) i->buf) + to_write, i->leftover);
+
+            assert(n >= (size_t) to_write);
+            n -= (size_t) to_write;
+        }
+
+        if (n >= i->fragment_size)
+            i->io_flags |= PA_IO_EVENT_INPUT;
+        else
+            i->io_flags &= ~PA_IO_EVENT_INPUT;
+    }
+
+    if ((i->rec_stream) && (pa_stream_get_state(i->rec_stream) == PA_STREAM_READY)) {
+        n = pa_stream_readable_size(i->rec_stream);
+
+        if (n == (size_t)-1) {
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_readable_size(): %s\n",
+                pa_strerror(pa_context_errno(i->context)));
+            return -1;
+        }
+
+        while (n >= i->fragment_size || force) {
+            ssize_t r;
+            const void *data;
+            const char *buf;
+            size_t len;
+
+            if (pa_stream_peek(i->rec_stream, &data, &len) < 0) {
+                debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_peek(): %s\n", pa_strerror(pa_context_errno(i->context)));
+                return -1;
+            }
+
+            if (len <= 0)
+                break;
+
+            if (!data) {
+                /* Maybe we should generate silence here, but I'm lazy and
+                 * I'll just skip any holes in the stream. */
+                if (pa_stream_drop(i->rec_stream) < 0) {
+                    debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_drop(): %s\n", pa_strerror(pa_context_errno(i->context)));
+                    return -1;
+                }
+
+                assert(n >= len);
+                n -= len;
+                continue;
+            }
+
+            buf = (const char*)data + i->rec_offset;
+
+            if ((r = write(i->thread_fd, buf, len - i->rec_offset)) <= 0) {
+
+                if (errno == EAGAIN)
+                    break;
+
+                debug(DEBUG_LEVEL_NORMAL, __FILE__": write(): %s\n", strerror(errno));
+                return -1;
+            }
+
+            assert((size_t)r <= len - i->rec_offset);
+            i->rec_offset += (size_t) r;
+
+            if (i->rec_offset == len) {
+                if (pa_stream_drop(i->rec_stream) < 0) {
+                    debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_drop(): %s\n", pa_strerror(pa_context_errno(i->context)));
+                    return -1;
+                }
+                i->rec_offset = 0;
+            }
+
+            assert(n >= (size_t) r);
+            n -= (size_t) r;
+        }
+
+        if (n >= i->fragment_size)
+            i->io_flags |= PA_IO_EVENT_OUTPUT;
+        else
+            i->io_flags &= ~PA_IO_EVENT_OUTPUT;
+    }
+
+    if (i->io_event) {
+        pa_mainloop_api *api;
+
+        api = pa_threaded_mainloop_get_api(i->mainloop);
+        api->io_enable(i->io_event, i->io_flags);
+    }
+
+    /* So, we emptied the socket now, let's tell dsp_empty_socket()
+     * about this */
+    pa_threaded_mainloop_signal(i->mainloop, 0);
+
+    return 0;
+}
+
+static void stream_state_cb(pa_stream *s, void * userdata) {
+    fd_info *i = userdata;
+    assert(s);
+
+    switch (pa_stream_get_state(s)) {
+
+        case PA_STREAM_READY:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": stream established.\n");
+            break;
+
+        case PA_STREAM_FAILED:
+            if (s == i->play_stream) {
+                debug(DEBUG_LEVEL_NORMAL,
+                    __FILE__": pa_stream_connect_playback() failed: %s\n",
+                    pa_strerror(pa_context_errno(i->context)));
+                pa_stream_unref(i->play_stream);
+                i->play_stream = NULL;
+            } else if (s == i->rec_stream) {
+                debug(DEBUG_LEVEL_NORMAL,
+                    __FILE__": pa_stream_connect_record() failed: %s\n",
+                    pa_strerror(pa_context_errno(i->context)));
+                pa_stream_unref(i->rec_stream);
+                i->rec_stream = NULL;
+            }
+            fd_info_shutdown(i);
+            break;
+
+        case PA_STREAM_TERMINATED:
+        case PA_STREAM_UNCONNECTED:
+        case PA_STREAM_CREATING:
+            break;
+    }
+}
+
+static int create_playback_stream(fd_info *i) {
+    pa_buffer_attr attr;
+    int n, flags;
+
+    assert(i);
+
+    fix_metrics(i);
+
+    if (!(i->play_stream = pa_stream_new(i->context, stream_name(), &i->sample_spec, NULL))) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
+        goto fail;
+    }
+
+    pa_stream_set_state_callback(i->play_stream, stream_state_cb, i);
+    pa_stream_set_write_callback(i->play_stream, stream_request_cb, i);
+    pa_stream_set_latency_update_callback(i->play_stream, stream_latency_update_cb, i);
+
+    memset(&attr, 0, sizeof(attr));
+    attr.maxlength = (uint32_t) (i->fragment_size * (i->n_fragments+1));
+    attr.tlength = (uint32_t) (i->fragment_size * i->n_fragments);
+    attr.prebuf = (uint32_t) i->fragment_size;
+    attr.minreq = (uint32_t) i->fragment_size;
+
+    flags = PA_STREAM_INTERPOLATE_TIMING|PA_STREAM_AUTO_TIMING_UPDATE|PA_STREAM_EARLY_REQUESTS;
+    if (i->play_precork) {
+        flags |= PA_STREAM_START_CORKED;
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": creating stream corked\n");
+    }
+    if (pa_stream_connect_playback(i->play_stream, NULL, &attr, flags, NULL, NULL) < 0) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_connect_playback() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
+        goto fail;
+    }
+
+    n = (int) i->fragment_size;
+    setsockopt(i->app_fd, SOL_SOCKET, SO_SNDBUF, &n, sizeof(n));
+    n = (int) i->fragment_size;
+    setsockopt(i->thread_fd, SOL_SOCKET, SO_RCVBUF, &n, sizeof(n));
+
+    return 0;
+
+fail:
+    return -1;
+}
+
+static int create_record_stream(fd_info *i) {
+    pa_buffer_attr attr;
+    int n, flags;
+
+    assert(i);
+
+    fix_metrics(i);
+
+    if (!(i->rec_stream = pa_stream_new(i->context, stream_name(), &i->sample_spec, NULL))) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
+        goto fail;
+    }
+
+    pa_stream_set_state_callback(i->rec_stream, stream_state_cb, i);
+    pa_stream_set_read_callback(i->rec_stream, stream_request_cb, i);
+    pa_stream_set_latency_update_callback(i->rec_stream, stream_latency_update_cb, i);
+
+    memset(&attr, 0, sizeof(attr));
+    attr.maxlength = (uint32_t) (i->fragment_size * (i->n_fragments+1));
+    attr.fragsize = (uint32_t) i->fragment_size;
+
+    flags = PA_STREAM_INTERPOLATE_TIMING|PA_STREAM_AUTO_TIMING_UPDATE;
+    if (i->rec_precork) {
+        flags |= PA_STREAM_START_CORKED;
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": creating stream corked\n");
+    }
+    if (pa_stream_connect_record(i->rec_stream, NULL, &attr, flags) < 0) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_connect_record() failed: %s\n", pa_strerror(pa_context_errno(i->context)));
+        goto fail;
+    }
+
+    n = (int) i->fragment_size;
+    setsockopt(i->app_fd, SOL_SOCKET, SO_RCVBUF, &n, sizeof(n));
+    n = (int) i->fragment_size;
+    setsockopt(i->thread_fd, SOL_SOCKET, SO_SNDBUF, &n, sizeof(n));
+
+    return 0;
+
+fail:
+    return -1;
+}
+
+static void free_streams(fd_info *i) {
+    assert(i);
+
+    if (i->play_stream) {
+        pa_stream_disconnect(i->play_stream);
+        pa_stream_unref(i->play_stream);
+        i->play_stream = NULL;
+        i->io_flags |= PA_IO_EVENT_INPUT;
+    }
+
+    if (i->rec_stream) {
+        pa_stream_disconnect(i->rec_stream);
+        pa_stream_unref(i->rec_stream);
+        i->rec_stream = NULL;
+        i->io_flags |= PA_IO_EVENT_OUTPUT;
+    }
+
+    if (i->io_event) {
+        pa_mainloop_api *api;
+
+        api = pa_threaded_mainloop_get_api(i->mainloop);
+        api->io_enable(i->io_event, i->io_flags);
+    }
+}
+
+static void io_event_cb(pa_mainloop_api *api, pa_io_event *e, int fd, pa_io_event_flags_t flags, void *userdata) {
+    fd_info *i = userdata;
+
+    pa_threaded_mainloop_signal(i->mainloop, 0);
+
+    if (flags & PA_IO_EVENT_INPUT) {
+
+        if (!i->play_stream) {
+            if (create_playback_stream(i) < 0)
+                goto fail;
+        } else {
+            if (fd_info_copy_data(i, 0) < 0)
+                goto fail;
+        }
+
+    } else if (flags & PA_IO_EVENT_OUTPUT) {
+
+        if (!i->rec_stream) {
+            if (create_record_stream(i) < 0)
+                goto fail;
+        } else {
+            if (fd_info_copy_data(i, 0) < 0)
+                goto fail;
+        }
+
+    } else if (flags & (PA_IO_EVENT_HANGUP|PA_IO_EVENT_ERROR))
+        goto fail;
+
+    return;
+
+fail:
+    /* We can't do anything better than removing the event source */
+    fd_info_shutdown(i);
+}
+
+static int dsp_open(int flags, int *_errno) {
+    fd_info *i;
+    pa_mainloop_api *api;
+    int ret;
+    int f;
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": dsp_open()\n");
+
+    if (!(i = fd_info_new(FD_INFO_STREAM, _errno)))
+        return -1;
+
+    if ((flags & O_NONBLOCK) == O_NONBLOCK) {
+        if ((f = fcntl(i->app_fd, F_GETFL)) >= 0)
+            fcntl(i->app_fd, F_SETFL, f|O_NONBLOCK);
+    }
+    if ((f = fcntl(i->thread_fd, F_GETFL)) >= 0)
+        fcntl(i->thread_fd, F_SETFL, f|O_NONBLOCK);
+
+    fcntl(i->app_fd, F_SETFD, FD_CLOEXEC);
+    fcntl(i->thread_fd, F_SETFD, FD_CLOEXEC);
+
+    pa_threaded_mainloop_lock(i->mainloop);
+    api = pa_threaded_mainloop_get_api(i->mainloop);
+
+    switch (flags & O_ACCMODE) {
+    case O_RDONLY:
+        i->io_flags = PA_IO_EVENT_OUTPUT;
+        shutdown(i->thread_fd, SHUT_RD);
+        shutdown(i->app_fd, SHUT_WR);
+        break;
+    case O_WRONLY:
+        i->io_flags = PA_IO_EVENT_INPUT;
+        shutdown(i->thread_fd, SHUT_WR);
+        shutdown(i->app_fd, SHUT_RD);
+        break;
+    case O_RDWR:
+        i->io_flags = PA_IO_EVENT_INPUT | PA_IO_EVENT_OUTPUT;
+        break;
+    default:
+        pa_threaded_mainloop_unlock(i->mainloop);
+        fd_info_unref(i);
+        *_errno = EIO;
+        return -1;
+    }
+
+    if (!(i->io_event = api->io_new(api, i->thread_fd, i->io_flags, io_event_cb, i)))
+        goto fail;
+
+    pa_threaded_mainloop_unlock(i->mainloop);
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": dsp_open() succeeded, fd=%i\n", i->app_fd);
+
+    fd_info_add_to_list(i);
+    ret = i->app_fd;
+    fd_info_unref(i);
+
+    return ret;
+
+fail:
+    pa_threaded_mainloop_unlock(i->mainloop);
+
+    if (i)
+        fd_info_unref(i);
+
+    *_errno = EIO;
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": dsp_open() failed\n");
+
+    return -1;
+}
+
+static void sink_info_cb(pa_context *context, const pa_sink_info *si, int eol, void *userdata) {
+    fd_info *i = userdata;
+
+    if (eol < 0) {
+        i->operation_success = 0;
+        pa_threaded_mainloop_signal(i->mainloop, 0);
+        return;
+    }
+
+    if (eol)
+        return;
+
+    if (!pa_cvolume_equal(&i->sink_volume, &si->volume))
+        i->volume_modify_count++;
+
+    i->sink_volume = si->volume;
+    i->sink_index = si->index;
+
+    i->operation_success = 1;
+    pa_threaded_mainloop_signal(i->mainloop, 0);
+}
+
+static void source_info_cb(pa_context *context, const pa_source_info *si, int eol, void *userdata) {
+    fd_info *i = userdata;
+
+    if (eol < 0) {
+        i->operation_success = 0;
+        pa_threaded_mainloop_signal(i->mainloop, 0);
+        return;
+    }
+
+    if (eol)
+        return;
+
+    if (!pa_cvolume_equal(&i->source_volume, &si->volume))
+        i->volume_modify_count++;
+
+    i->source_volume = si->volume;
+    i->source_index = si->index;
+
+    i->operation_success = 1;
+    pa_threaded_mainloop_signal(i->mainloop, 0);
+}
+
+static void subscribe_cb(pa_context *context, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
+    fd_info *i = userdata;
+    pa_operation *o = NULL;
+
+    if (i->sink_index != idx)
+        return;
+
+    if ((t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) != PA_SUBSCRIPTION_EVENT_CHANGE)
+        return;
+
+    if (!(o = pa_context_get_sink_info_by_index(i->context, i->sink_index, sink_info_cb, i))) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to get sink info: %s", pa_strerror(pa_context_errno(i->context)));
+        return;
+    }
+
+    pa_operation_unref(o);
+}
+
+static int mixer_open(int flags, int *_errno) {
+    fd_info *i;
+    pa_operation *o = NULL;
+    int ret;
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": mixer_open()\n");
+
+    if (!(i = fd_info_new(FD_INFO_MIXER, _errno)))
+        return -1;
+
+    pa_threaded_mainloop_lock(i->mainloop);
+
+    pa_context_set_subscribe_callback(i->context, subscribe_cb, i);
+
+    if (!(o = pa_context_subscribe(i->context, PA_SUBSCRIPTION_MASK_SINK | PA_SUBSCRIPTION_MASK_SOURCE, context_success_cb, i))) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to subscribe to events: %s", pa_strerror(pa_context_errno(i->context)));
+        *_errno = EIO;
+        goto fail;
+    }
+
+    i->operation_success = 0;
+    while (pa_operation_get_state(o) != PA_OPERATION_DONE) {
+        pa_threaded_mainloop_wait(i->mainloop);
+        CONTEXT_CHECK_DEAD_GOTO(i, fail);
+    }
+
+    pa_operation_unref(o);
+    o = NULL;
+
+    if (!i->operation_success) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__":Failed to subscribe to events: %s", pa_strerror(pa_context_errno(i->context)));
+        *_errno = EIO;
+        goto fail;
+    }
+
+    /* Get sink info */
+
+    if (!(o = pa_context_get_sink_info_by_name(i->context, NULL, sink_info_cb, i))) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to get sink info: %s", pa_strerror(pa_context_errno(i->context)));
+        *_errno = EIO;
+        goto fail;
+    }
+
+    i->operation_success = 0;
+    while (pa_operation_get_state(o) != PA_OPERATION_DONE) {
+        pa_threaded_mainloop_wait(i->mainloop);
+        CONTEXT_CHECK_DEAD_GOTO(i, fail);
+    }
+
+    pa_operation_unref(o);
+    o = NULL;
+
+    if (!i->operation_success) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to get sink info: %s", pa_strerror(pa_context_errno(i->context)));
+        *_errno = EIO;
+        goto fail;
+    }
+
+    /* Get source info */
+
+    if (!(o = pa_context_get_source_info_by_name(i->context, NULL, source_info_cb, i))) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to get source info: %s", pa_strerror(pa_context_errno(i->context)));
+        *_errno = EIO;
+        goto fail;
+    }
+
+    i->operation_success = 0;
+    while (pa_operation_get_state(o) != PA_OPERATION_DONE) {
+        pa_threaded_mainloop_wait(i->mainloop);
+        CONTEXT_CHECK_DEAD_GOTO(i, fail);
+    }
+
+    pa_operation_unref(o);
+    o = NULL;
+
+    if (!i->operation_success) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to get source info: %s", pa_strerror(pa_context_errno(i->context)));
+        *_errno = EIO;
+        goto fail;
+    }
+
+    pa_threaded_mainloop_unlock(i->mainloop);
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": mixer_open() succeeded, fd=%i\n", i->app_fd);
+
+    fd_info_add_to_list(i);
+    ret = i->app_fd;
+    fd_info_unref(i);
+
+    return ret;
+
+fail:
+    if (o)
+        pa_operation_unref(o);
+
+    pa_threaded_mainloop_unlock(i->mainloop);
+
+    if (i)
+        fd_info_unref(i);
+
+    *_errno = EIO;
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": mixer_open() failed\n");
+
+    return -1;
+}
+
+static int sndstat_open(int flags, int *_errno) {
+    static const char sndstat[] =
+        "Sound Driver:3.8.1a-980706 (PulseAudio Virtual OSS)\n"
+        "Kernel: POSIX\n"
+        "Config options: 0\n"
+        "\n"
+        "Installed drivers:\n"
+        "Type 255: PulseAudio Virtual OSS\n"
+        "\n"
+        "Card config:\n"
+        "PulseAudio Virtual OSS\n"
+        "\n"
+        "Audio devices:\n"
+        "0: PulseAudio Virtual OSS\n"
+        "\n"
+        "Synth devices: NOT ENABLED IN CONFIG\n"
+        "\n"
+        "Midi devices:\n"
+        "\n"
+        "Timers:\n"
+        "\n"
+        "Mixers:\n"
+        "0: PulseAudio Virtual OSS\n";
+
+    char *fn;
+    mode_t u;
+    int fd = -1;
+    int e;
+
+    fn = pa_sprintf_malloc("%s" PA_PATH_SEP "padsp-sndstat-XXXXXX", pa_get_temp_dir());
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": sndstat_open()\n");
+
+    if (flags != O_RDONLY
+#ifdef O_LARGEFILE
+        && flags != (O_RDONLY|O_LARGEFILE)
+#endif
+       ) {
+        *_errno = EACCES;
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": bad access!\n");
+        goto fail;
+    }
+
+    u = umask(0077);
+    fd = mkstemp(fn);
+    e = errno;
+    umask(u);
+
+    if (fd < 0) {
+        *_errno = e;
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": mkstemp() failed: %s\n", strerror(errno));
+        goto fail;
+    }
+
+    unlink(fn);
+    pa_xfree(fn);
+    fn = NULL;
+
+    if (write(fd, sndstat, sizeof(sndstat) -1) != sizeof(sndstat)-1) {
+        *_errno = errno;
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": write() failed: %s\n", strerror(errno));
+        goto fail;
+    }
+
+    if (lseek(fd, SEEK_SET, 0) < 0) {
+        *_errno = errno;
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": lseek() failed: %s\n", strerror(errno));
+        goto fail;
+    }
+
+    return fd;
+
+fail:
+    pa_xfree(fn);
+    if (fd >= 0)
+        close(fd);
+    return -1;
+}
+
+static int real_open(const char *filename, int flags, mode_t mode) {
+    int r, _errno = 0;
+
+    debug(DEBUG_LEVEL_VERBOSE, __FILE__": open(%s)\n", filename?filename:"NULL");
+
+    if (!function_enter()) {
+        LOAD_OPEN_FUNC();
+        return _open(filename, flags, mode);
+    }
+
+    if (filename && dsp_cloak_enable() && (pa_streq(filename, "/dev/dsp") || pa_streq(filename, "/dev/adsp") || pa_streq(filename, "/dev/audio")))
+        r = dsp_open(flags, &_errno);
+    else if (filename && mixer_cloak_enable() && pa_streq(filename, "/dev/mixer"))
+        r = mixer_open(flags, &_errno);
+    else if (filename && sndstat_cloak_enable() && pa_streq(filename, "/dev/sndstat"))
+        r = sndstat_open(flags, &_errno);
+    else {
+        function_exit();
+        LOAD_OPEN_FUNC();
+        return _open(filename, flags, mode);
+    }
+
+    function_exit();
+
+    if (_errno)
+        errno = _errno;
+
+    return r;
+}
+
+int open(const char *filename, int flags, ...) {
+    va_list args;
+    mode_t mode = 0;
+
+    if (flags & O_CREAT) {
+        va_start(args, flags);
+        if (sizeof(mode_t) < sizeof(int))
+            mode = (mode_t) va_arg(args, int);
+        else
+            mode = va_arg(args, mode_t);
+        va_end(args);
+    }
+
+    return real_open(filename, flags, mode);
+}
+
+static bool is_audio_device_node(const char *path) {
+    return
+        pa_streq(path, "/dev/dsp") ||
+        pa_streq(path, "/dev/adsp") ||
+        pa_streq(path, "/dev/audio") ||
+        pa_streq(path, "/dev/sndstat") ||
+        pa_streq(path, "/dev/mixer");
+}
+
+int __open_2(const char *filename, int flags) {
+    debug(DEBUG_LEVEL_VERBOSE, __FILE__": __open_2(%s)\n", filename?filename:"NULL");
+
+    if ((flags & O_CREAT) ||
+        !filename ||
+        !is_audio_device_node(filename)) {
+        LOAD___OPEN_2_FUNC();
+        return ___open_2(filename, flags);
+    }
+    return real_open(filename, flags, 0);
+}
+
+static int mixer_ioctl(fd_info *i, unsigned long request, void*argp, int *_errno) {
+    int ret = -1;
+
+    switch (request) {
+        case SOUND_MIXER_READ_DEVMASK :
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_DEVMASK\n");
+
+            *(int*) argp = SOUND_MASK_PCM | SOUND_MASK_IGAIN;
+            break;
+
+        case SOUND_MIXER_READ_RECMASK :
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_RECMASK\n");
+
+            *(int*) argp = SOUND_MASK_IGAIN;
+            break;
+
+        case SOUND_MIXER_READ_STEREODEVS:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_STEREODEVS\n");
+
+            pa_threaded_mainloop_lock(i->mainloop);
+            *(int*) argp = 0;
+            if (i->sink_volume.channels > 1)
+                *(int*) argp |= SOUND_MASK_PCM;
+            if (i->source_volume.channels > 1)
+                *(int*) argp |= SOUND_MASK_IGAIN;
+            pa_threaded_mainloop_unlock(i->mainloop);
+
+            break;
+
+        case SOUND_MIXER_READ_RECSRC:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_RECSRC\n");
+
+            *(int*) argp = SOUND_MASK_IGAIN;
+            break;
+
+        case SOUND_MIXER_WRITE_RECSRC:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_WRITE_RECSRC\n");
+            break;
+
+        case SOUND_MIXER_READ_CAPS:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_CAPS\n");
+
+            *(int*) argp = 0;
+            break;
+
+        case SOUND_MIXER_READ_PCM:
+        case SOUND_MIXER_READ_IGAIN: {
+            pa_cvolume *v;
+
+            if (request == SOUND_MIXER_READ_PCM)
+                debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_PCM\n");
+            else
+                debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_READ_IGAIN\n");
+
+            pa_threaded_mainloop_lock(i->mainloop);
+
+            if (request == SOUND_MIXER_READ_PCM)
+                v = &i->sink_volume;
+            else
+                v = &i->source_volume;
+
+            *(int*) argp =
+                ((v->values[0]*100/PA_VOLUME_NORM)) |
+                ((v->values[v->channels > 1 ? 1 : 0]*100/PA_VOLUME_NORM) << 8);
+
+            pa_threaded_mainloop_unlock(i->mainloop);
+
+            break;
+        }
+
+        case SOUND_MIXER_WRITE_PCM:
+        case SOUND_MIXER_WRITE_IGAIN: {
+            pa_cvolume v, *pv;
+
+            if (request == SOUND_MIXER_WRITE_PCM)
+                debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_WRITE_PCM\n");
+            else
+                debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_WRITE_IGAIN\n");
+
+            pa_threaded_mainloop_lock(i->mainloop);
+
+            if (request == SOUND_MIXER_WRITE_PCM) {
+                v = i->sink_volume;
+                pv = &i->sink_volume;
+            } else {
+                v = i->source_volume;
+                pv = &i->source_volume;
+            }
+
+            pv->values[0] = ((*(int*) argp & 0xFF)*PA_VOLUME_NORM)/100;
+            pv->values[1] = ((*(int*) argp >> 8)*PA_VOLUME_NORM)/100;
+
+            if (!pa_cvolume_equal(pv, &v)) {
+                pa_operation *o;
+
+                if (request == SOUND_MIXER_WRITE_PCM)
+                    o = pa_context_set_sink_volume_by_index(i->context, i->sink_index, pv, context_success_cb, i);
+                else
+                    o = pa_context_set_source_volume_by_index(i->context, i->source_index, pv, context_success_cb, i);
+
+                if (!o)
+                    debug(DEBUG_LEVEL_NORMAL, __FILE__":Failed set volume: %s", pa_strerror(pa_context_errno(i->context)));
+                else {
+
+                    i->operation_success = 0;
+                    while (pa_operation_get_state(o) != PA_OPERATION_DONE) {
+                        CONTEXT_CHECK_DEAD_GOTO(i, exit_loop);
+
+                        pa_threaded_mainloop_wait(i->mainloop);
+                    }
+                exit_loop:
+
+                    if (!i->operation_success)
+                        debug(DEBUG_LEVEL_NORMAL, __FILE__": Failed to set volume: %s\n", pa_strerror(pa_context_errno(i->context)));
+
+                    pa_operation_unref(o);
+                }
+
+                /* We don't wait for completion here */
+                i->volume_modify_count++;
+            }
+
+            pa_threaded_mainloop_unlock(i->mainloop);
+
+            break;
+        }
+
+        case SOUND_MIXER_INFO: {
+            mixer_info *mi = argp;
+
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_MIXER_INFO\n");
+
+            memset(mi, 0, sizeof(mixer_info));
+            strncpy(mi->id, "PULSEAUDIO", sizeof(mi->id));
+            strncpy(mi->name, "PulseAudio Virtual OSS", sizeof(mi->name));
+            pa_threaded_mainloop_lock(i->mainloop);
+            mi->modify_counter = i->volume_modify_count;
+            pa_threaded_mainloop_unlock(i->mainloop);
+            break;
+        }
+
+        default:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": unknown ioctl 0x%08lx\n", request);
+
+            *_errno = EINVAL;
+            goto fail;
+    }
+
+    ret = 0;
+
+fail:
+
+    return ret;
+}
+
+static int map_format(int *fmt, pa_sample_spec *ss) {
+
+    switch (*fmt) {
+        case AFMT_MU_LAW:
+            ss->format = PA_SAMPLE_ULAW;
+            break;
+
+        case AFMT_A_LAW:
+            ss->format = PA_SAMPLE_ALAW;
+            break;
+
+        case AFMT_S8:
+            *fmt = AFMT_U8;
+            /* fall through */
+        case AFMT_U8:
+            ss->format = PA_SAMPLE_U8;
+            break;
+
+        case AFMT_U16_BE:
+            *fmt = AFMT_S16_BE;
+            /* fall through */
+        case AFMT_S16_BE:
+            ss->format = PA_SAMPLE_S16BE;
+            break;
+
+        case AFMT_U16_LE:
+            *fmt = AFMT_S16_LE;
+            /* fall through */
+        case AFMT_S16_LE:
+            ss->format = PA_SAMPLE_S16LE;
+            break;
+
+        default:
+            ss->format = PA_SAMPLE_S16NE;
+            *fmt = AFMT_S16_NE;
+            break;
+    }
+
+    return 0;
+}
+
+static int map_format_back(pa_sample_format_t format) {
+    switch (format) {
+        case PA_SAMPLE_S16LE: return AFMT_S16_LE;
+        case PA_SAMPLE_S16BE: return AFMT_S16_BE;
+        case PA_SAMPLE_ULAW: return AFMT_MU_LAW;
+        case PA_SAMPLE_ALAW: return AFMT_A_LAW;
+        case PA_SAMPLE_U8: return AFMT_U8;
+        default:
+            abort();
+    }
+}
+
+static int dsp_flush_fd(int fd) {
+#ifdef SIOCINQ
+    int l;
+
+    if (ioctl(fd, SIOCINQ, &l) < 0) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": SIOCINQ: %s\n", strerror(errno));
+        return -1;
+    }
+
+    while (l > 0) {
+        char buf[1024];
+        size_t k;
+        ssize_t r;
+
+        k = (size_t) l > sizeof(buf) ? sizeof(buf) : (size_t) l;
+        r = read(fd, buf, k);
+        if (r < 0) {
+            if (errno == EAGAIN)
+                break;
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": read(): %s\n", strerror(errno));
+            return -1;
+        } else if (r == 0)
+            break;
+        l -= r;
+    }
+
+    return 0;
+#else
+# warning "Your platform does not support SIOCINQ, something might not work as intended."
+    return 0;
+#endif
+}
+
+static int dsp_flush_socket(fd_info *i) {
+    int res = 0;
+
+    if ((i->thread_fd < 0) && (i->app_fd < 0))
+        return -1;
+
+    if (i->thread_fd >= 0)
+        res = dsp_flush_fd(i->thread_fd);
+
+    if (res < 0)
+        return res;
+
+    if (i->app_fd >= 0)
+        res = dsp_flush_fd(i->app_fd);
+
+    if (res < 0)
+        return res;
+
+    return 0;
+}
+
+static int dsp_empty_socket(fd_info *i) {
+#ifdef SIOCINQ
+    int ret = -1;
+
+    /* Empty the socket */
+    for (;;) {
+        int l;
+
+        if (i->thread_fd < 0)
+            break;
+
+        if (ioctl(i->thread_fd, SIOCINQ, &l) < 0) {
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SIOCINQ: %s\n", strerror(errno));
+            break;
+        }
+
+        if (!l) {
+            ret = 0;
+            break;
+        }
+
+        pa_threaded_mainloop_wait(i->mainloop);
+    }
+
+    return ret;
+#else
+# warning "Your platform does not support SIOCINQ, something might not work as intended."
+    return 0;
+#endif
+}
+
+static int dsp_drain(fd_info *i) {
+    pa_operation *o = NULL;
+    int r = -1;
+
+    if (!i->mainloop)
+        return 0;
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": Draining.\n");
+
+    pa_threaded_mainloop_lock(i->mainloop);
+
+    if (dsp_empty_socket(i) < 0)
+        goto fail;
+
+    if (!i->play_stream)
+        goto fail;
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": Really draining.\n");
+
+    if (!(o = pa_stream_drain(i->play_stream, stream_success_cb, i))) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_drain(): %s\n", pa_strerror(pa_context_errno(i->context)));
+        goto fail;
+    }
+
+    i->operation_success = 0;
+    while (pa_operation_get_state(o) != PA_OPERATION_DONE) {
+        PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, fail);
+
+        pa_threaded_mainloop_wait(i->mainloop);
+    }
+
+    if (!i->operation_success) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_drain() 2: %s\n", pa_strerror(pa_context_errno(i->context)));
+        goto fail;
+    }
+
+    r = 0;
+
+fail:
+
+    if (o)
+        pa_operation_unref(o);
+
+    pa_threaded_mainloop_unlock(i->mainloop);
+
+    return r;
+}
+
+static int dsp_trigger(fd_info *i) {
+    pa_operation *o = NULL;
+    int r = -1;
+
+    if (!i->play_stream)
+        return 0;
+
+    pa_threaded_mainloop_lock(i->mainloop);
+
+    if (dsp_empty_socket(i) < 0)
+        goto fail;
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": Triggering.\n");
+
+    if (!(o = pa_stream_trigger(i->play_stream, stream_success_cb, i))) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_trigger(): %s\n", pa_strerror(pa_context_errno(i->context)));
+        goto fail;
+    }
+
+    i->operation_success = 0;
+    while (pa_operation_get_state(o) != PA_OPERATION_DONE) {
+        PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, fail);
+
+        pa_threaded_mainloop_wait(i->mainloop);
+    }
+
+    if (!i->operation_success) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_trigger(): %s\n", pa_strerror(pa_context_errno(i->context)));
+        goto fail;
+    }
+
+    r = 0;
+
+fail:
+
+    if (o)
+        pa_operation_unref(o);
+
+    pa_threaded_mainloop_unlock(i->mainloop);
+
+    return r;
+}
+
+static int dsp_cork(fd_info *i, pa_stream *s, int b) {
+    pa_operation *o = NULL;
+    int r = -1;
+
+    pa_threaded_mainloop_lock(i->mainloop);
+
+    if (!(o = pa_stream_cork(s, b, stream_success_cb, i))) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_cork(): %s\n", pa_strerror(pa_context_errno(i->context)));
+        goto fail;
+    }
+
+    i->operation_success = 0;
+    while (pa_operation_get_state(o) != PA_OPERATION_DONE) {
+        if (s == i->play_stream)
+            PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, fail);
+        else if (s == i->rec_stream)
+            RECORD_STREAM_CHECK_DEAD_GOTO(i, fail);
+
+        pa_threaded_mainloop_wait(i->mainloop);
+    }
+
+    if (!i->operation_success) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_cork(): %s\n", pa_strerror(pa_context_errno(i->context)));
+        goto fail;
+    }
+
+    r = 0;
+
+fail:
+
+    if (o)
+        pa_operation_unref(o);
+
+    pa_threaded_mainloop_unlock(i->mainloop);
+
+    return r;
+}
+
+static int dsp_ioctl(fd_info *i, unsigned long request, void*argp, int *_errno) {
+    int ret = -1;
+
+    if (i->thread_fd == -1) {
+        /*
+         * We've encountered some fatal error and are just waiting
+         * for a close.
+         */
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": got ioctl 0x%08lx in fatal error state\n", request);
+        *_errno = EIO;
+        return -1;
+    }
+
+    switch (request) {
+        case SNDCTL_DSP_SETFMT: {
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SETFMT: %i\n", *(int*) argp);
+
+            pa_threaded_mainloop_lock(i->mainloop);
+
+            if (*(int*) argp == AFMT_QUERY)
+                *(int*) argp = map_format_back(i->sample_spec.format);
+            else {
+                map_format((int*) argp, &i->sample_spec);
+                free_streams(i);
+            }
+
+            pa_threaded_mainloop_unlock(i->mainloop);
+            break;
+        }
+
+        case SNDCTL_DSP_SPEED: {
+            pa_sample_spec ss;
+            int valid;
+            char t[256];
+
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SPEED: %i\n", *(int*) argp);
+
+            pa_threaded_mainloop_lock(i->mainloop);
+
+            ss = i->sample_spec;
+            ss.rate = *(int*) argp;
+
+            if ((valid = pa_sample_spec_valid(&ss))) {
+                i->sample_spec = ss;
+                free_streams(i);
+            }
+
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": ss: %s\n", pa_sample_spec_snprint(t, sizeof(t), &i->sample_spec));
+
+            pa_threaded_mainloop_unlock(i->mainloop);
+
+            if (!valid) {
+                *_errno = EINVAL;
+                goto fail;
+            }
+
+            break;
+        }
+
+        case SNDCTL_DSP_STEREO:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_STEREO: %i\n", *(int*) argp);
+
+            pa_threaded_mainloop_lock(i->mainloop);
+
+            i->sample_spec.channels = *(int*) argp ? 2 : 1;
+            free_streams(i);
+
+            pa_threaded_mainloop_unlock(i->mainloop);
+            return 0;
+
+        case SNDCTL_DSP_CHANNELS: {
+            pa_sample_spec ss;
+            int valid;
+
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_CHANNELS: %i\n", *(int*) argp);
+
+            pa_threaded_mainloop_lock(i->mainloop);
+
+            ss = i->sample_spec;
+            ss.channels = *(int*) argp;
+
+            if ((valid = pa_sample_spec_valid(&ss))) {
+                i->sample_spec = ss;
+                free_streams(i);
+            }
+
+            pa_threaded_mainloop_unlock(i->mainloop);
+
+            if (!valid) {
+                *_errno = EINVAL;
+                goto fail;
+            }
+
+            break;
+        }
+
+        case SNDCTL_DSP_GETBLKSIZE:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETBLKSIZE\n");
+
+            pa_threaded_mainloop_lock(i->mainloop);
+
+            fix_metrics(i);
+            *(int*) argp = i->fragment_size;
+
+            pa_threaded_mainloop_unlock(i->mainloop);
+
+            break;
+
+        case SNDCTL_DSP_SETFRAGMENT:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SETFRAGMENT: 0x%08x\n", *(int*) argp);
+
+            pa_threaded_mainloop_lock(i->mainloop);
+
+            i->fragment_size = 1 << ((*(int*) argp) & 31);
+            i->n_fragments = (*(int*) argp) >> 16;
+
+            /* 0x7FFF means that we can set whatever we like */
+            if (i->n_fragments == 0x7FFF)
+                i->n_fragments = 12;
+
+            free_streams(i);
+
+            pa_threaded_mainloop_unlock(i->mainloop);
+
+            break;
+
+        case SNDCTL_DSP_GETCAPS:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_CAPS\n");
+
+            *(int*) argp = DSP_CAP_DUPLEX | DSP_CAP_TRIGGER
+#ifdef DSP_CAP_MULTI
+              | DSP_CAP_MULTI
+#endif
+              ;
+            break;
+
+        case SNDCTL_DSP_GETODELAY: {
+            int l;
+
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETODELAY\n");
+
+            pa_threaded_mainloop_lock(i->mainloop);
+
+            *(int*) argp = 0;
+
+            for (;;) {
+                pa_usec_t usec;
+
+                PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, exit_loop);
+
+                if (pa_stream_get_latency(i->play_stream, &usec, NULL) >= 0) {
+                    *(int*) argp = pa_usec_to_bytes(usec, &i->sample_spec);
+                    break;
+                }
+
+                if (pa_context_errno(i->context) != PA_ERR_NODATA) {
+                    debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_get_latency(): %s\n", pa_strerror(pa_context_errno(i->context)));
+                    break;
+                }
+
+                pa_threaded_mainloop_wait(i->mainloop);
+            }
+
+        exit_loop:
+
+#ifdef SIOCINQ
+            if (ioctl(i->thread_fd, SIOCINQ, &l) < 0)
+                debug(DEBUG_LEVEL_NORMAL, __FILE__": SIOCINQ failed: %s\n", strerror(errno));
+            else
+                *(int*) argp += l;
+#else
+# warning "Your platform does not support SIOCINQ, something might not work as intended."
+#endif
+
+            pa_threaded_mainloop_unlock(i->mainloop);
+
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": ODELAY: %i\n", *(int*) argp);
+
+            break;
+        }
+
+        case SNDCTL_DSP_RESET: {
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_RESET\n");
+
+            pa_threaded_mainloop_lock(i->mainloop);
+
+            free_streams(i);
+            dsp_flush_socket(i);
+
+            i->optr_n_blocks = 0;
+
+            pa_threaded_mainloop_unlock(i->mainloop);
+            break;
+        }
+
+        case SNDCTL_DSP_GETFMTS: {
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETFMTS\n");
+
+            *(int*) argp = AFMT_MU_LAW|AFMT_A_LAW|AFMT_U8|AFMT_S16_LE|AFMT_S16_BE;
+            break;
+        }
+
+        case SNDCTL_DSP_POST:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_POST\n");
+
+            if (dsp_trigger(i) < 0)
+                *_errno = EIO;
+            break;
+
+        case SNDCTL_DSP_GETTRIGGER:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETTRIGGER\n");
+
+            *(int*) argp = 0;
+            if (!i->play_precork)
+                *(int*) argp |= PCM_ENABLE_OUTPUT;
+            if (!i->rec_precork)
+                *(int*) argp |= PCM_ENABLE_INPUT;
+
+            break;
+
+        case SNDCTL_DSP_SETTRIGGER:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SETTRIGGER: 0x%08x\n", *(int*) argp);
+
+            if (!i->io_event) {
+                *_errno = EIO;
+                break;
+            }
+
+            i->play_precork = !((*(int*) argp) & PCM_ENABLE_OUTPUT);
+
+            if (i->play_stream) {
+                if (dsp_cork(i, i->play_stream, !((*(int*) argp) & PCM_ENABLE_OUTPUT)) < 0)
+                    *_errno = EIO;
+                if (dsp_trigger(i) < 0)
+                    *_errno = EIO;
+            }
+
+            i->rec_precork = !((*(int*) argp) & PCM_ENABLE_INPUT);
+
+            if (i->rec_stream) {
+                if (dsp_cork(i, i->rec_stream, !((*(int*) argp) & PCM_ENABLE_INPUT)) < 0)
+                    *_errno = EIO;
+            }
+
+            break;
+
+        case SNDCTL_DSP_SYNC:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SYNC\n");
+
+            if (dsp_drain(i) < 0)
+                *_errno = EIO;
+
+            break;
+
+        case SNDCTL_DSP_GETOSPACE:
+        case SNDCTL_DSP_GETISPACE: {
+            audio_buf_info *bi = (audio_buf_info*) argp;
+            int l = 0;
+            size_t k = 0;
+
+            if (request == SNDCTL_DSP_GETOSPACE)
+                debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETOSPACE\n");
+            else
+                debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETISPACE\n");
+
+            pa_threaded_mainloop_lock(i->mainloop);
+
+            fix_metrics(i);
+
+            if (request == SNDCTL_DSP_GETOSPACE) {
+                if (i->play_stream) {
+                    if ((k = pa_stream_writable_size(i->play_stream)) == (size_t) -1)
+                        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_writable_size(): %s\n", pa_strerror(pa_context_errno(i->context)));
+                } else
+                    k = i->fragment_size * i->n_fragments;
+
+#ifdef SIOCINQ
+                if (ioctl(i->thread_fd, SIOCINQ, &l) < 0) {
+                    debug(DEBUG_LEVEL_NORMAL, __FILE__": SIOCINQ failed: %s\n", strerror(errno));
+                    l = 0;
+                }
+#else
+# warning "Your platform does not dsp_flush_fd, something might not work as intended."
+#endif
+
+                bi->bytes = k > (size_t) l ? k - l : 0;
+            } else {
+                if (i->rec_stream) {
+                    if ((k = pa_stream_readable_size(i->rec_stream)) == (size_t) -1)
+                        debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_readable_size(): %s\n", pa_strerror(pa_context_errno(i->context)));
+                } else
+                    k = 0;
+
+#ifdef SIOCINQ
+                if (ioctl(i->app_fd, SIOCINQ, &l) < 0) {
+                    debug(DEBUG_LEVEL_NORMAL, __FILE__": SIOCINQ failed: %s\n", strerror(errno));
+                    l = 0;
+                }
+#else
+# warning "Your platform does not dsp_flush_fd, something might not work as intended."
+#endif
+                bi->bytes = k + l;
+            }
+
+            bi->fragsize = i->fragment_size;
+            bi->fragstotal = i->n_fragments;
+            bi->fragments = bi->bytes / bi->fragsize;
+
+            pa_threaded_mainloop_unlock(i->mainloop);
+
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": fragsize=%i, fragstotal=%i, bytes=%i, fragments=%i\n", bi->fragsize, bi->fragstotal, bi->bytes, bi->fragments);
+
+            break;
+        }
+
+#ifdef HAVE_DECL_SOUND_PCM_READ_RATE
+        case SOUND_PCM_READ_RATE:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_PCM_READ_RATE\n");
+
+            pa_threaded_mainloop_lock(i->mainloop);
+            *(int*) argp = i->sample_spec.rate;
+            pa_threaded_mainloop_unlock(i->mainloop);
+            break;
+#endif
+
+#ifdef HAVE_DECL_SOUND_PCM_READ_CHANNELS
+        case SOUND_PCM_READ_CHANNELS:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_PCM_READ_CHANNELS\n");
+
+            pa_threaded_mainloop_lock(i->mainloop);
+            *(int*) argp = i->sample_spec.channels;
+            pa_threaded_mainloop_unlock(i->mainloop);
+            break;
+#endif
+
+#ifdef HAVE_DECL_SOUND_PCM_READ_BITS
+        case SOUND_PCM_READ_BITS:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SOUND_PCM_READ_BITS\n");
+
+            pa_threaded_mainloop_lock(i->mainloop);
+            *(int*) argp = pa_sample_size(&i->sample_spec)*8;
+            pa_threaded_mainloop_unlock(i->mainloop);
+            break;
+#endif
+
+        case SNDCTL_DSP_GETOPTR: {
+            count_info *info;
+
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_GETOPTR\n");
+
+            info = (count_info*) argp;
+            memset(info, 0, sizeof(*info));
+
+            pa_threaded_mainloop_lock(i->mainloop);
+
+            for (;;) {
+                pa_usec_t usec;
+
+                PLAYBACK_STREAM_CHECK_DEAD_GOTO(i, exit_loop2);
+
+                if (pa_stream_get_time(i->play_stream, &usec) >= 0) {
+                    size_t k = pa_usec_to_bytes(usec, &i->sample_spec);
+                    int m;
+
+                    info->bytes = (int) k;
+                    m = k / i->fragment_size;
+                    info->blocks = m - i->optr_n_blocks;
+                    i->optr_n_blocks = m;
+
+                    break;
+                }
+
+                if (pa_context_errno(i->context) != PA_ERR_NODATA) {
+                    debug(DEBUG_LEVEL_NORMAL, __FILE__": pa_stream_get_latency(): %s\n", pa_strerror(pa_context_errno(i->context)));
+                    break;
+                }
+
+                pa_threaded_mainloop_wait(i->mainloop);
+            }
+
+        exit_loop2:
+
+            pa_threaded_mainloop_unlock(i->mainloop);
+
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": GETOPTR bytes=%i, blocks=%i, ptr=%i\n", info->bytes, info->blocks, info->ptr);
+
+            break;
+        }
+
+        case SNDCTL_DSP_GETIPTR:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": invalid ioctl SNDCTL_DSP_GETIPTR\n");
+            goto inval;
+
+        case SNDCTL_DSP_SETDUPLEX:
+            debug(DEBUG_LEVEL_NORMAL, __FILE__": SNDCTL_DSP_SETDUPLEX\n");
+            /* this is a no-op */
+            break;
+
+        default:
+            /* Mixer ioctls are valid on /dev/dsp as well */
+            return mixer_ioctl(i, request, argp, _errno);
+
+inval:
+            *_errno = EINVAL;
+            goto fail;
+    }
+
+    ret = 0;
+
+fail:
+
+    return ret;
+}
+
+#ifndef __GLIBC__
+int ioctl(int fd, int request, ...) {
+#else
+int ioctl(int fd, unsigned long request, ...) {
+#endif
+    fd_info *i;
+    va_list args;
+    void *argp;
+    int r, _errno = 0;
+
+    debug(DEBUG_LEVEL_VERBOSE, __FILE__": ioctl()\n");
+
+    va_start(args, request);
+    argp = va_arg(args, void *);
+    va_end(args);
+
+    if (!function_enter()) {
+        LOAD_IOCTL_FUNC();
+        return _ioctl(fd, request, argp);
+    }
+
+    if (!(i = fd_info_find(fd))) {
+        function_exit();
+        LOAD_IOCTL_FUNC();
+        return _ioctl(fd, request, argp);
+    }
+
+    if (i->type == FD_INFO_MIXER)
+        r = mixer_ioctl(i, request, argp, &_errno);
+    else
+        r = dsp_ioctl(i, request, argp, &_errno);
+
+    fd_info_unref(i);
+
+    if (_errno)
+        errno = _errno;
+
+    function_exit();
+
+    return r;
+}
+
+int close(int fd) {
+    fd_info *i;
+
+    debug(DEBUG_LEVEL_VERBOSE, __FILE__": close()\n");
+
+    if (!function_enter()) {
+        LOAD_CLOSE_FUNC();
+        return _close(fd);
+    }
+
+    if (!(i = fd_info_find(fd))) {
+        function_exit();
+        LOAD_CLOSE_FUNC();
+        return _close(fd);
+    }
+
+    fd_info_remove_from_list(i);
+    fd_info_unref(i);
+
+    function_exit();
+
+    return 0;
+}
+
+int access(const char *pathname, int mode) {
+
+    debug(DEBUG_LEVEL_VERBOSE, __FILE__": access(%s)\n", pathname?pathname:"NULL");
+
+    if (!pathname ||
+        !is_audio_device_node(pathname)) {
+        LOAD_ACCESS_FUNC();
+        return _access(pathname, mode);
+    }
+
+    if (mode & X_OK) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": access(%s, %x) = EACCESS\n", pathname, mode);
+        errno = EACCES;
+        return -1;
+    }
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": access(%s, %x) = OK\n", pathname, mode);
+
+    return 0;
+}
+
+int stat(const char *pathname, struct stat *buf) {
+#ifdef HAVE_OPEN64
+    struct stat64 parent;
+#else
+    struct stat parent;
+#endif
+    int ret;
+
+    if (!pathname ||
+        !buf ||
+        !is_audio_device_node(pathname)) {
+        debug(DEBUG_LEVEL_VERBOSE, __FILE__": stat(%s)\n", pathname?pathname:"NULL");
+        LOAD_STAT_FUNC();
+        return _stat(pathname, buf);
+    }
+
+    debug(DEBUG_LEVEL_NORMAL, __FILE__": stat(%s)\n", pathname);
+
+#ifdef _STAT_VER
+#ifdef HAVE_OPEN64
+    ret = __xstat64(_STAT_VER, "/dev", &parent);
+#else
+    ret = __xstat(_STAT_VER, "/dev", &parent);
+#endif
+#else
+#ifdef HAVE_OPEN64
+    ret = stat64("/dev", &parent);
+#else
+    ret = stat("/dev", &parent);
+#endif
+#endif
+
+    if (ret) {
+        debug(DEBUG_LEVEL_NORMAL, __FILE__": unable to stat \"/dev\"\n");
+        return -1;
+    }
+
+    buf->st_dev = parent.st_dev;
+    buf->st_ino = 0xDEADBEEF;   /* FIXME: Can we do this in a safe way? */
+    buf->st_mode = S_IFCHR | S_IRUSR | S_IWUSR;
+    buf->st_nlink = 1;
+    buf->st_uid = getuid();
+    buf->st_gid = getgid();
+    buf->st_rdev = 0x0E03;      /* FIXME: Linux specific */
+    buf->st_size = 0;
+    buf->st_atime = 1181557705;
+    buf->st_mtime = 1181557705;
+    buf->st_ctime = 1181557705;
+    buf->st_blksize = 1;
+    buf->st_blocks = 0;
+
+    return 0;
+}
+#ifdef HAVE_OPEN64
+#undef stat64
+#ifdef __GLIBC__
+int stat64(const char *pathname, struct stat64 *buf) {
+#else
+int stat64(const char *pathname, struct stat *buf) {
+#endif
+    struct stat oldbuf;
+    int ret;
+
+    debug(DEBUG_LEVEL_VERBOSE, __FILE__": stat64(%s)\n", pathname?pathname:"NULL");
+
+    if (!pathname ||
+        !buf ||
+        !is_audio_device_node(pathname)) {
+        LOAD_STAT64_FUNC();
+        return _stat64(pathname, buf);
+    }
+
+    ret = stat(pathname, &oldbuf);
+    if (ret)
+        return ret;
+
+    buf->st_dev = oldbuf.st_dev;
+    buf->st_ino = oldbuf.st_ino;
+    buf->st_mode = oldbuf.st_mode;
+    buf->st_nlink = oldbuf.st_nlink;
+    buf->st_uid = oldbuf.st_uid;
+    buf->st_gid = oldbuf.st_gid;
+    buf->st_rdev = oldbuf.st_rdev;
+    buf->st_size = oldbuf.st_size;
+    buf->st_atime = oldbuf.st_atime;
+    buf->st_mtime = oldbuf.st_mtime;
+    buf->st_ctime = oldbuf.st_ctime;
+    buf->st_blksize = oldbuf.st_blksize;
+    buf->st_blocks = oldbuf.st_blocks;
+
+    return 0;
+}
+#undef open64
+int open64(const char *filename, int flags, ...) {
+    va_list args;
+    mode_t mode = 0;
+
+    debug(DEBUG_LEVEL_VERBOSE, __FILE__": open64(%s)\n", filename?filename:"NULL");
+
+    if (flags & O_CREAT) {
+        va_start(args, flags);
+        if (sizeof(mode_t) < sizeof(int))
+            mode = va_arg(args, int);
+        else
+            mode = va_arg(args, mode_t);
+        va_end(args);
+    }
+
+    if (!filename ||
+        !is_audio_device_node(filename)) {
+        LOAD_OPEN64_FUNC();
+        return _open64(filename, flags, mode);
+    }
+
+    return real_open(filename, flags, mode);
+}
+
+int __open64_2(const char *filename, int flags) {
+    debug(DEBUG_LEVEL_VERBOSE, __FILE__": __open64_2(%s)\n", filename?filename:"NULL");
+
+    if ((flags & O_CREAT) ||
+        !filename ||
+        !is_audio_device_node(filename)) {
+        LOAD___OPEN64_2_FUNC();
+        return ___open64_2(filename, flags);
+    }
+
+    return real_open(filename, flags, 0);
+}
+
+#endif
+
+#ifdef _STAT_VER
+
+int __xstat(int ver, const char *pathname, struct stat *buf) {
+    debug(DEBUG_LEVEL_VERBOSE, __FILE__": __xstat(%s)\n", pathname?pathname:"NULL");
+
+    if (!pathname ||
+        !buf ||
+        !is_audio_device_node(pathname)) {
+        LOAD_XSTAT_FUNC();
+        return ___xstat(ver, pathname, buf);
+    }
+
+    if (ver != _STAT_VER) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    return stat(pathname, buf);
+}
+
+#ifdef HAVE_OPEN64
+
+int __xstat64(int ver, const char *pathname, struct stat64 *buf) {
+    debug(DEBUG_LEVEL_VERBOSE, __FILE__": __xstat64(%s)\n", pathname?pathname:"NULL");
+
+    if (!pathname ||
+        !buf ||
+        !is_audio_device_node(pathname)) {
+        LOAD_XSTAT64_FUNC();
+        return ___xstat64(ver, pathname, buf);
+    }
+
+    if (ver != _STAT_VER) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    return stat64(pathname, buf);
+}
+
+#endif
+
+#endif
+
+FILE* fopen(const char *filename, const char *mode) {
+    FILE *f = NULL;
+    int fd;
+    mode_t m;
+
+    debug(DEBUG_LEVEL_VERBOSE, __FILE__": fopen(%s)\n", filename?filename:"NULL");
+
+    if (!filename ||
+        !mode ||
+        !is_audio_device_node(filename)) {
+        LOAD_FOPEN_FUNC();
+        return _fopen(filename, mode);
+    }
+
+    switch (mode[0]) {
+    case 'r':
+        m = O_RDONLY;
+        break;
+    case 'w':
+    case 'a':
+        m = O_WRONLY;
+        break;
+    default:
+        errno = EINVAL;
+        return NULL;
+    }
+
+    if ((((mode[1] == 'b') || (mode[1] == 't')) && (mode[2] == '+')) || (mode[1] == '+'))
+        m = O_RDWR;
+
+    if ((fd = real_open(filename, m, 0)) < 0)
+        return NULL;
+
+    if (!(f = fdopen(fd, mode))) {
+        close(fd);
+        return NULL;
+    }
+
+    return f;
+}
+
+#ifdef HAVE_OPEN64
+#undef fopen64
+FILE *fopen64(const char *__restrict filename, const char *__restrict mode) {
+
+    debug(DEBUG_LEVEL_VERBOSE, __FILE__": fopen64(%s)\n", filename?filename:"NULL");
+
+    if (!filename ||
+        !mode ||
+        !is_audio_device_node(filename)) {
+        LOAD_FOPEN64_FUNC();
+        return _fopen64(filename, mode);
+    }
+
+    return fopen(filename, mode);
+}
+
+#endif
+
+int fclose(FILE *f) {
+    fd_info *i;
+
+    debug(DEBUG_LEVEL_VERBOSE, __FILE__": fclose()\n");
+
+    if (!function_enter()) {
+        LOAD_FCLOSE_FUNC();
+        return _fclose(f);
+    }
+
+    if (!(i = fd_info_find(fileno(f)))) {
+        function_exit();
+        LOAD_FCLOSE_FUNC();
+        return _fclose(f);
+    }
+
+    fd_info_remove_from_list(i);
+
+    /* Dirty trick to avoid that the fd is not freed twice, once by us
+     * and once by the real fclose() */
+    i->app_fd = -1;
+
+    fd_info_unref(i);
+
+    function_exit();
+
+    LOAD_FCLOSE_FUNC();
+    return _fclose(f);
+}