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-rw-r--r--src/contrib/openbsd/LICENSE2
-rw-r--r--src/contrib/openbsd/siphash.c176
-rw-r--r--src/contrib/openbsd/siphash.h83
-rw-r--r--src/contrib/openbsd/strlcat.c48
-rw-r--r--src/contrib/openbsd/strlcat.h31
-rw-r--r--src/contrib/openbsd/strlcpy.c46
-rw-r--r--src/contrib/openbsd/strlcpy.h29
7 files changed, 415 insertions, 0 deletions
diff --git a/src/contrib/openbsd/LICENSE b/src/contrib/openbsd/LICENSE
new file mode 100644
index 0000000..e9a1aaa
--- /dev/null
+++ b/src/contrib/openbsd/LICENSE
@@ -0,0 +1,2 @@
+../licenses/0BSD
+../licenses/BSD-3-Clause \ No newline at end of file
diff --git a/src/contrib/openbsd/siphash.c b/src/contrib/openbsd/siphash.c
new file mode 100644
index 0000000..26b8cfc
--- /dev/null
+++ b/src/contrib/openbsd/siphash.c
@@ -0,0 +1,176 @@
+/* $OpenBSD: siphash.c,v 1.6 2017/04/12 17:41:49 deraadt Exp $ */
+
+/*-
+ * Copyright (c) 2013 Andre Oppermann <andre@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote
+ * products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * SipHash is a family of PRFs SipHash-c-d where the integer parameters c and d
+ * are the number of compression rounds and the number of finalization rounds.
+ * A compression round is identical to a finalization round and this round
+ * function is called SipRound. Given a 128-bit key k and a (possibly empty)
+ * byte string m, SipHash-c-d returns a 64-bit value SipHash-c-d(k; m).
+ *
+ * Implemented from the paper "SipHash: a fast short-input PRF", 2012.09.18,
+ * by Jean-Philippe Aumasson and Daniel J. Bernstein,
+ * Permanent Document ID b9a943a805fbfc6fde808af9fc0ecdfa
+ * https://131002.net/siphash/siphash.pdf
+ * https://131002.net/siphash/
+ */
+
+#include <string.h>
+
+#include "libknot/endian.h"
+#include "contrib/string.h"
+#include "contrib/openbsd/siphash.h"
+
+static void SipHash_CRounds(SIPHASH_CTX *, int);
+static void SipHash_Rounds(SIPHASH_CTX *, int);
+
+void
+SipHash_Init(SIPHASH_CTX *ctx, const SIPHASH_KEY *key)
+{
+ uint64_t k0, k1;
+
+ k0 = le64toh(key->k0);
+ k1 = le64toh(key->k1);
+
+ ctx->v[0] = 0x736f6d6570736575ULL ^ k0;
+ ctx->v[1] = 0x646f72616e646f6dULL ^ k1;
+ ctx->v[2] = 0x6c7967656e657261ULL ^ k0;
+ ctx->v[3] = 0x7465646279746573ULL ^ k1;
+
+ memset(ctx->buf, 0, sizeof(ctx->buf));
+ ctx->bytes = 0;
+}
+
+void
+SipHash_Update(SIPHASH_CTX *ctx, int rc, int rf, const void *src, size_t len)
+{
+ const uint8_t *ptr = src;
+ size_t left, used;
+
+ if (len == 0)
+ return;
+
+ used = ctx->bytes % sizeof(ctx->buf);
+ ctx->bytes += len;
+
+ if (used > 0) {
+ left = sizeof(ctx->buf) - used;
+
+ if (len >= left) {
+ memcpy(&ctx->buf[used], ptr, left);
+ SipHash_CRounds(ctx, rc);
+ len -= left;
+ ptr += left;
+ } else {
+ memcpy(&ctx->buf[used], ptr, len);
+ return;
+ }
+ }
+
+ while (len >= sizeof(ctx->buf)) {
+ memcpy(ctx->buf, ptr, sizeof(ctx->buf));
+ SipHash_CRounds(ctx, rc);
+ len -= sizeof(ctx->buf);
+ ptr += sizeof(ctx->buf);
+ }
+
+ if (len > 0)
+ memcpy(&ctx->buf, ptr, len);
+}
+
+uint64_t
+SipHash_End(SIPHASH_CTX *ctx, int rc, int rf)
+{
+ uint64_t r;
+ size_t left, used;
+
+ used = ctx->bytes % sizeof(ctx->buf);
+ left = sizeof(ctx->buf) - used;
+ memset(&ctx->buf[used], 0, left - 1);
+ ctx->buf[7] = ctx->bytes;
+
+ SipHash_CRounds(ctx, rc);
+ ctx->v[2] ^= 0xff;
+ SipHash_Rounds(ctx, rf);
+
+ r = (ctx->v[0] ^ ctx->v[1]) ^ (ctx->v[2] ^ ctx->v[3]);
+ memzero(ctx, sizeof(*ctx));
+ return htole64(r);
+}
+
+uint64_t
+SipHash(const SIPHASH_KEY *key, int rc, int rf, const void *src, size_t len)
+{
+ SIPHASH_CTX ctx;
+
+ SipHash_Init(&ctx, key);
+ SipHash_Update(&ctx, rc, rf, src, len);
+ return (SipHash_End(&ctx, rc, rf));
+}
+
+#define SIP_ROTL(x, b) ((x) << (b)) | ( (x) >> (64 - (b)))
+
+static void
+SipHash_Rounds(SIPHASH_CTX *ctx, int rounds)
+{
+ while (rounds--) {
+ ctx->v[0] += ctx->v[1];
+ ctx->v[2] += ctx->v[3];
+ ctx->v[1] = SIP_ROTL(ctx->v[1], 13);
+ ctx->v[3] = SIP_ROTL(ctx->v[3], 16);
+
+ ctx->v[1] ^= ctx->v[0];
+ ctx->v[3] ^= ctx->v[2];
+ ctx->v[0] = SIP_ROTL(ctx->v[0], 32);
+
+ ctx->v[2] += ctx->v[1];
+ ctx->v[0] += ctx->v[3];
+ ctx->v[1] = SIP_ROTL(ctx->v[1], 17);
+ ctx->v[3] = SIP_ROTL(ctx->v[3], 21);
+
+ ctx->v[1] ^= ctx->v[2];
+ ctx->v[3] ^= ctx->v[0];
+ ctx->v[2] = SIP_ROTL(ctx->v[2], 32);
+ }
+}
+
+static void
+SipHash_CRounds(SIPHASH_CTX *ctx, int rounds)
+{
+ uint64_t tmp;
+
+ memcpy(&tmp, ctx->buf, sizeof(tmp));
+ uint64_t m = le64toh(tmp);
+
+ ctx->v[3] ^= m;
+ SipHash_Rounds(ctx, rounds);
+ ctx->v[0] ^= m;
+}
diff --git a/src/contrib/openbsd/siphash.h b/src/contrib/openbsd/siphash.h
new file mode 100644
index 0000000..d551fe8
--- /dev/null
+++ b/src/contrib/openbsd/siphash.h
@@ -0,0 +1,83 @@
+/*-
+ * Copyright (c) 2013 Andre Oppermann <andre@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote
+ * products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $OpenBSD: siphash.h,v 1.3 2015/02/20 11:51:03 tedu Exp $
+ */
+
+/*
+ * SipHash is a family of pseudorandom functions (a.k.a. keyed hash functions)
+ * optimized for speed on short messages returning a 64bit hash/digest value.
+ *
+ * The number of rounds is defined during the initialization:
+ * SipHash24_Init() for the fast and resonable strong version
+ * SipHash48_Init() for the strong version (half as fast)
+ *
+ * struct SIPHASH_CTX ctx;
+ * SipHash24_Init(&ctx);
+ * SipHash_SetKey(&ctx, "16bytes long key");
+ * SipHash_Update(&ctx, pointer_to_string, length_of_string);
+ * SipHash_End(&ctx);
+ */
+
+#ifndef _SIPHASH_H_
+#define _SIPHASH_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define SIPHASH_BLOCK_LENGTH 8
+#define SIPHASH_KEY_LENGTH 16
+#define SIPHASH_DIGEST_LENGTH 8
+
+typedef struct _SIPHASH_CTX {
+ uint64_t v[4];
+ uint8_t buf[SIPHASH_BLOCK_LENGTH];
+ uint32_t bytes;
+} SIPHASH_CTX;
+
+typedef struct {
+ uint64_t k0;
+ uint64_t k1;
+} SIPHASH_KEY;
+
+void SipHash_Init(SIPHASH_CTX *, const SIPHASH_KEY *);
+void SipHash_Update(SIPHASH_CTX *, int, int, const void *, size_t);
+uint64_t SipHash_End(SIPHASH_CTX *, int, int);
+uint64_t SipHash(const SIPHASH_KEY *, int, int, const void *, size_t);
+
+#define SipHash24_Init(_c, _k) SipHash_Init((_c), (_k))
+#define SipHash24_Update(_c, _p, _l) SipHash_Update((_c), 2, 4, (_p), (_l))
+#define SipHash24_End(_d) SipHash_End((_d), 2, 4)
+#define SipHash24(_k, _p, _l) SipHash((_k), 2, 4, (_p), (_l))
+
+#define SipHash48_Init(_c, _k) SipHash_Init((_c), (_k))
+#define SipHash48_Update(_c, _p, _l) SipHash_Update((_c), 4, 8, (_p), (_l))
+#define SipHash48_End(_d) SipHash_End((_d), 4, 8)
+#define SipHash48(_k, _p, _l) SipHash((_k), 4, 8, (_p), (_l))
+
+#endif /* _SIPHASH_H_ */
diff --git a/src/contrib/openbsd/strlcat.c b/src/contrib/openbsd/strlcat.c
new file mode 100644
index 0000000..1409062
--- /dev/null
+++ b/src/contrib/openbsd/strlcat.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <string.h>
+
+#include "contrib/openbsd/strlcat.h"
+
+size_t
+knot_strlcat(char *dst, const char *src, size_t siz)
+{
+ char *d = dst;
+ const char *s = src;
+ size_t n = siz;
+ size_t dlen;
+
+ /* Find the end of dst and adjust bytes left but don't go past end */
+ while (n-- != 0 && *d != '\0')
+ d++;
+ dlen = d - dst;
+ n = siz - dlen;
+
+ if (n == 0)
+ return(dlen + strlen(s));
+ while (*s != '\0') {
+ if (n != 1) {
+ *d++ = *s;
+ n--;
+ }
+ s++;
+ }
+ *d = '\0';
+
+ return(dlen + (s - src)); /* count does not include NUL */
+}
diff --git a/src/contrib/openbsd/strlcat.h b/src/contrib/openbsd/strlcat.h
new file mode 100644
index 0000000..7016069
--- /dev/null
+++ b/src/contrib/openbsd/strlcat.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#pragma once
+
+#ifndef HAVE_STRLCAT
+#define strlcat(dst, src, size) knot_strlcat(dst, src, size)
+#endif
+
+/*
+ * Appends src to string dst of size siz (unlike strncat, siz is the
+ * full size of dst, not space left). At most siz-1 characters
+ * will be copied. Always NUL terminates (unless siz <= strlen(dst)).
+ * Returns strlen(src) + MIN(siz, strlen(initial dst)).
+ * If retval >= siz, truncation occurred.
+ */
+size_t
+knot_strlcat(char *dst, const char *src, size_t siz);
diff --git a/src/contrib/openbsd/strlcpy.c b/src/contrib/openbsd/strlcpy.c
new file mode 100644
index 0000000..eafc0e4
--- /dev/null
+++ b/src/contrib/openbsd/strlcpy.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <string.h>
+
+#include "contrib/openbsd/strlcpy.h"
+
+size_t
+knot_strlcpy(char *dst, const char *src, size_t siz)
+{
+ char *d = dst;
+ const char *s = src;
+ size_t n = siz;
+
+ /* Copy as many bytes as will fit */
+ if (n != 0) {
+ while (--n != 0) {
+ if ((*d++ = *s++) == '\0')
+ break;
+ }
+ }
+
+ /* Not enough room in dst, add NUL and traverse rest of src */
+ if (n == 0) {
+ if (siz != 0)
+ *d = '\0'; /* NUL-terminate dst */
+ while (*s++)
+ ;
+ }
+
+ return(s - src - 1); /* count does not include NUL */
+}
diff --git a/src/contrib/openbsd/strlcpy.h b/src/contrib/openbsd/strlcpy.h
new file mode 100644
index 0000000..6421068
--- /dev/null
+++ b/src/contrib/openbsd/strlcpy.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#pragma once
+
+#ifndef HAVE_STRLCPY
+#define strlcpy(dst, src, size) knot_strlcpy(dst, src, size)
+#endif
+
+/*
+ * Copy src to string dst of size siz. At most siz-1 characters
+ * will be copied. Always NUL terminates (unless siz == 0).
+ * Returns strlen(src); if retval >= siz, truncation occurred.
+ */
+size_t
+knot_strlcpy(char *dst, const char *src, size_t siz);