commit d0acbabefab836b815a0d1eed24f73605e9f6381
parent bfbff93d6e64b6cb32a987d55480c9717067f5b0
Author: Evgeny Grin (Karlson2k) <k2k@narod.ru>
Date: Sat, 8 Aug 2015 11:10:06 +0000
Update md5.c to version based on OpenBSD modifications,
distinguish between little endian and PDP endian.
Diffstat:
6 files changed, 398 insertions(+), 232 deletions(-)
diff --git a/configure.ac b/configure.ac
@@ -358,7 +358,7 @@ fi
AC_CHECK_HEADERS([fcntl.h math.h errno.h limits.h stdio.h locale.h sys/stat.h sys/types.h pthread.h],,AC_MSG_ERROR([Compiling libmicrohttpd requires standard UNIX headers files]))
# Check for optional headers
-AC_CHECK_HEADERS([sys/types.h sys/time.h sys/msg.h netdb.h netinet/in.h netinet/tcp.h time.h sys/socket.h sys/mman.h arpa/inet.h sys/select.h search.h])
+AC_CHECK_HEADERS([sys/types.h sys/time.h sys/msg.h netdb.h netinet/in.h netinet/tcp.h time.h sys/socket.h sys/mman.h arpa/inet.h sys/select.h search.h endian.h machine/endian.h sys/endian.h sys/param.h sys/machine.h sys/byteorder.h machine/param.h sys/isa_defs.h])
AM_CONDITIONAL([HAVE_TSEARCH], [test "x$ac_cv_header_search_h" = "xyes"])
AC_CHECK_MEMBER([struct sockaddr_in.sin_len],
diff --git a/src/microhttpd/MHD_byteorder.h b/src/microhttpd/MHD_byteorder.h
@@ -0,0 +1,152 @@
+/*
+ This file is part of libmicrohttpd
+ Copyright (C) 2015 Karlson2k (Evgeny Grin)
+
+ This library 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.
+
+ This library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library.
+ If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file microhttpd/MHD_byteorder.h
+ * @brief macro definitions for host byte order
+ * @author Karlson2k (Evgeny Grin)
+ */
+
+#ifndef MHD_BYTEORDER_H
+#define MHD_BYTEORDER_H
+
+#include "platform.h"
+
+#if HAVE_ENDIAN_H
+#include <endian.h>
+#endif
+
+#if HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+
+#if HAVE_MACHINE_ENDIAN_H
+#include <machine/endian.h>
+#endif
+
+#if HAVE_SYS_ENDIAN_H
+#include <sys/endian.h>
+#endif
+
+#if HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#if HAVE_SYS_BYTEORDER_H
+#include <sys/byteorder.h>
+#endif
+
+#if HAVE_SYS_MACHINE_H
+#include <sys/machine.h>
+#endif
+
+#if HAVE_MACHINE_PARAM_H
+#include <machine/param.h>
+#endif
+
+#if HAVE_SYS_ISA_DEFS_H
+#include <sys/isa_defs.h>
+#endif
+
+#define _MHD_BIG_ENDIAN 4321
+#define _MHD_LITTLE_ENDIAN 1234
+#define _MHD_PDP_ENDIAN 2134
+
+#if defined(__BYTE_ORDER)
+#if defined(__BIG_ENDIAN) && __BYTE_ORDER == __BIG_ENDIAN
+#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
+#elif defined(__LITTLE_ENDIAN) && __BYTE_ORDER == __LITTLE_ENDIAN
+#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
+#elif defined(__PDP_ENDIAN) && __BYTE_ORDER == __PDP_ENDIAN
+#define _MHD_BYTE_ORDER _MHD_PDP_ENDIAN
+#endif /* __BYTE_ORDER == __PDP_ENDIAN */
+#elif defined (BYTE_ORDER)
+#if defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN
+#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
+#elif defined(LITTLE_ENDIAN) && BYTE_ORDER == LITTLE_ENDIAN
+#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
+#elif defined(PDP_ENDIAN) && BYTE_ORDER == PDP_ENDIAN
+#define _MHD_BYTE_ORDER _MHD_PDP_ENDIAN
+#endif /* __BYTE_ORDER == _PDP_ENDIAN */
+#elif defined (_BYTE_ORDER)
+#if defined(_BIG_ENDIAN) && _BYTE_ORDER == _BIG_ENDIAN
+#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
+#elif defined(_LITTLE_ENDIAN) && _BYTE_ORDER == _LITTLE_ENDIAN
+#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
+#elif defined(_PDP_ENDIAN) && _BYTE_ORDER == _PDP_ENDIAN
+#define _MHD_BYTE_ORDER _MHD_PDP_ENDIAN
+#endif /* __BYTE_ORDER == _PDP_ENDIAN */
+#endif /* _BYTE_ORDER */
+
+#ifndef _MHD_BYTE_ORDER
+/* Byte order specification didn't detected in system headers */
+/* Try some guessing */
+
+#if (defined(__BIG_ENDIAN__) && !defined(__LITTLE_ENDIAN__)) || \
+ (defined(_BIG_ENDIAN) && !defined(_LITTLE_ENDIAN))
+/* Seems that we are on big endian platform */
+#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
+#elif (defined(__LITTLE_ENDIAN__) && !defined(__BIG_ENDIAN__)) || \
+ (defined(_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN))
+/* Seems that we are on little endian platform */
+#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
+#elif defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || \
+ defined(_M_X64) || defined(_M_AMD64) || defined(i386) || defined(__i386) || \
+ defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) || \
+ defined(_M_IX86) || defined(_X86_) || defined (__THW_INTEL__)
+/* x86 family is little endian */
+#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
+#elif defined(__ARMEB__) || defined(__THUMBEB__) || defined(__AARCH64EB__) || \
+ defined(_MIPSEB) || defined(__MIPSEB) || defined(__MIPSEB__)
+/* Looks like we are on ARM/MIPS in big endian mode */
+#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
+#elif defined(__ARMEL__) || defined(__THUMBEL__) || defined(__AARCH64EL__) || \
+ defined(_MIPSEL) || defined(__MIPSEL) || defined(__MIPSEL__)
+/* Looks like we are on ARM/MIPS in little endian mode */
+#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
+#elif defined(__m68k__) || defined(M68000) || defined(__hppa__) || defined(__hppa) || \
+ defined(__HPPA__) || defined(__370__) || defined(__THW_370__) || \
+ defined(__s390__) || defined(__s390x__) || defined(__SYSC_ZARCH__)
+/* Looks like we are on big endian platform */
+#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
+#elif defined(__ia64__) || defined(_IA64) || defined(__IA64__) || defined(__ia64) || \
+ defined(_M_IA64) || defined(__itanium__) || defined(__bfin__) || \
+ defined(__BFIN__) || defined(bfin) || defined(BFIN)
+/* Looks like we are on little endian platform */
+#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
+#elif defined(_WIN32)
+/* W32 is always little endian on all platforms */
+#define _MHD_BYTE_ORDER _MHD_LITTLE_ENDIAN
+#elif defined(WORDS_BIGENDIAN)
+/* Use byte order detected by configure */
+#define _MHD_BYTE_ORDER _MHD_BIG_ENDIAN
+#endif /* _WIN32 */
+
+#endif /* !_MHD_BYTE_ORDER */
+
+#ifdef _MHD_BYTE_ORDER
+/* Some safety checks */
+#if defined(WORDS_BIGENDIAN) && _MHD_BYTE_ORDER != _MHD_BIG_ENDIAN
+#error Configure detected big endian byte order but headers specify different byte order
+#elif !defined(WORDS_BIGENDIAN) && _MHD_BYTE_ORDER == _MHD_BIG_ENDIAN
+#error Configure did not detect big endian byte order but headers specify big endian byte order
+#endif /* !WORDS_BIGENDIAN && _MHD_BYTE_ORDER == _MHD_BIG_ENDIAN */
+#endif /* _MHD_BYTE_ORDER */
+
+#endif /* !MHD_BYTEORDER_H */
+\ No newline at end of file
diff --git a/src/microhttpd/md5.c b/src/microhttpd/md5.c
@@ -15,136 +15,32 @@
* will fill a supplied 16-byte array with the digest.
*/
-/* Brutally hacked by John Walker back from ANSI C to K&R (no
- prototypes) to maintain the tradition that Netfone will compile
- with Sun's original "cc". */
+/* Based on OpenBSD modifications */
#include "md5.h"
-
-
-#ifndef HIGHFIRST
-#define byteReverse(buf, len) /* Nothing */
-#else
-/*
- * Note: this code is harmless on little-endian machines.
- */
-static void
-byteReverse(unsigned char *buf,
- unsigned longs)
-{
- uint32_t t;
- do {
- t = (uint32_t) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
- ((unsigned) buf[1] << 8 | buf[0]);
- *(uint32_t *) buf = t;
- buf += 4;
- } while (--longs);
-}
-#endif
-
-
-/* The four core functions - F1 is optimized somewhat */
-
-/* #define F1(x, y, z) (x & y | ~x & z) */
-#define F1(x, y, z) (z ^ (x & (y ^ z)))
-#define F2(x, y, z) F1(z, x, y)
-#define F3(x, y, z) (x ^ y ^ z)
-#define F4(x, y, z) (y ^ (x | ~z))
-
-/* This is the central step in the MD5 algorithm. */
-#define MD5STEP(f, w, x, y, z, data, s) \
- ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
-
-/*
- * The core of the MD5 algorithm, this alters an existing MD5 hash to
- * reflect the addition of 16 longwords of new data. MD5Update blocks
- * the data and converts bytes into longwords for this routine.
- */
-static void
-MD5Transform(uint32_t buf[4],
- uint32_t in[16])
-{
- uint32_t a, b, c, d;
-
- a = buf[0];
- b = buf[1];
- c = buf[2];
- d = buf[3];
-
- MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
- MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
- MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
- MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
- MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
- MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
- MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
- MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
- MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
- MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
- MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
- MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
- MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
- MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
- MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
- MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
-
- MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
- MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
- MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
- MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
- MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
- MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
- MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
- MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
- MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
- MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
- MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
- MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
- MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
- MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
- MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
- MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
-
- MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
- MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
- MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
- MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
- MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
- MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
- MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
- MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
- MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
- MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
- MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
- MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
- MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
- MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
- MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
- MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
-
- MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
- MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
- MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
- MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
- MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
- MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
- MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
- MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
- MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
- MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
- MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
- MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
- MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
- MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
- MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
- MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
-
- buf[0] += a;
- buf[1] += b;
- buf[2] += c;
- buf[3] += d;
-}
-
+#include "MHD_byteorder.h"
+
+#define PUT_64BIT_LE(cp, value) do { \
+ (cp)[7] = (uint8_t)((value) >> 56); \
+ (cp)[6] = (uint8_t)((value) >> 48); \
+ (cp)[5] = (uint8_t)((value) >> 40); \
+ (cp)[4] = (uint8_t)((value) >> 32); \
+ (cp)[3] = (uint8_t)((value) >> 24); \
+ (cp)[2] = (uint8_t)((value) >> 16); \
+ (cp)[1] = (uint8_t)((value) >> 8); \
+ (cp)[0] = (uint8_t)((value)); } while (0)
+
+#define PUT_32BIT_LE(cp, value) do { \
+ (cp)[3] = (uint8_t)((value) >> 24); \
+ (cp)[2] = (uint8_t)((value) >> 16); \
+ (cp)[1] = (uint8_t)((value) >> 8); \
+ (cp)[0] = (uint8_t)((value)); } while (0)
+
+static uint8_t PADDING[MD5_BLOCK_SIZE] = {
+ 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
/*
* Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
@@ -153,13 +49,14 @@ MD5Transform(uint32_t buf[4],
void
MD5Init(struct MD5Context *ctx)
{
- ctx->buf[0] = 0x67452301;
- ctx->buf[1] = 0xefcdab89;
- ctx->buf[2] = 0x98badcfe;
- ctx->buf[3] = 0x10325476;
-
- ctx->bits[0] = 0;
- ctx->bits[1] = 0;
+ if (!ctx)
+ return;
+
+ ctx->count = 0;
+ ctx->state[0] = 0x67452301;
+ ctx->state[1] = 0xefcdab89;
+ ctx->state[2] = 0x98badcfe;
+ ctx->state[3] = 0x10325476;
}
/*
@@ -167,101 +64,201 @@ MD5Init(struct MD5Context *ctx)
* of bytes.
*/
void
-MD5Update(struct MD5Context *ctx,
- const void *data,
- unsigned len)
+MD5Update(struct MD5Context *ctx, const unsigned char *input, size_t len)
{
- const unsigned char *buf = data;
- uint32_t t;
+ size_t have, need;
- /* Update bitcount */
+ if (!ctx || !input)
+ return;
- t = ctx->bits[0];
- if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t)
- ctx->bits[1]++; /* Carry from low to high */
- ctx->bits[1] += len >> 29;
+ /* Check how many bytes we already have and how many more we need. */
+ have = (size_t)((ctx->count >> 3) & (MD5_BLOCK_SIZE - 1));
+ need = MD5_BLOCK_SIZE - have;
- t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
+ /* Update bitcount */
+ ctx->count += (uint64_t)len << 3;
- /* Handle any leading odd-sized chunks */
-
- if (t) {
- unsigned char *p = (unsigned char *) ctx->in + t;
-
- t = 64 - t;
- if (len < t) {
- memcpy(p, buf, len);
- return;
- }
- memcpy(p, buf, t);
- byteReverse(ctx->in, 16);
- MD5Transform(ctx->buf, (uint32_t *) ctx->in);
- buf += t;
- len -= t;
- }
- /* Process data in 64-byte chunks */
-
- while (len >= 64) {
- memcpy(ctx->in, buf, 64);
- byteReverse(ctx->in, 16);
- MD5Transform(ctx->buf, (uint32_t *) ctx->in);
- buf += 64;
- len -= 64;
+ if (len >= need)
+ {
+ if (have != 0)
+ {
+ memcpy(ctx->buffer + have, input, need);
+ MD5Transform(ctx->state, ctx->buffer);
+ input += need;
+ len -= need;
+ have = 0;
}
- /* Handle any remaining bytes of data. */
+ /* Process data in MD5_BLOCK_SIZE-byte chunks. */
+ while (len >= MD5_BLOCK_SIZE)
+ {
+ MD5Transform(ctx->state, input);
+ input += MD5_BLOCK_SIZE;
+ len -= MD5_BLOCK_SIZE;
+ }
+ }
- memcpy(ctx->in, buf, len);
+ /* Handle any remaining bytes of data. */
+ if (len != 0)
+ memcpy(ctx->buffer + have, input, len);
}
/*
- * Final wrapup - pad to 64-byte boundary with the bit pattern
+ * Pad pad to 64-byte boundary with the bit pattern
* 1 0* (64-bit count of bits processed, MSB-first)
*/
void
-MD5Final (unsigned char digest[16],
- struct MD5Context *ctx)
+MD5Pad(struct MD5Context *ctx)
{
- unsigned count;
- unsigned char *p;
+ uint8_t count[8];
+ size_t padlen;
+
+ if (!ctx)
+ return;
+
+ /* Convert count to 8 bytes in little endian order. */
+ PUT_64BIT_LE(count, ctx->count);
+
+ /* Pad out to 56 mod 64. */
+ padlen = MD5_BLOCK_SIZE -
+ ((ctx->count >> 3) & (MD5_BLOCK_SIZE - 1));
+ if (padlen < 1 + 8)
+ padlen += MD5_BLOCK_SIZE;
+ MD5Update(ctx, PADDING, padlen - 8); /* padlen - 8 <= 64 */
+ MD5Update(ctx, count, 8);
+}
- /* Compute number of bytes mod 64 */
- count = (ctx->bits[0] >> 3) & 0x3F;
+/*
+ * Final wrapup--call MD5Pad, fill in digest and zero out ctx.
+ */
+void
+MD5Final(unsigned char digest[MD5_DIGEST_SIZE], struct MD5Context *ctx)
+{
+ int i;
- /* Set the first char of padding to 0x80. This is safe since there is
- always at least one byte free */
- p = ctx->in + count;
- *p++ = 0x80;
+ if (!ctx || !digest)
+ return;
- /* Bytes of padding needed to make 64 bytes */
- count = 64 - 1 - count;
+ MD5Pad(ctx);
+ for (i = 0; i < 4; i++)
+ PUT_32BIT_LE(digest + i * 4, ctx->state[i]);
- /* Pad out to 56 mod 64 */
- if (count < 8)
- {
- /* Two lots of padding: Pad the first block to 64 bytes */
- memset(p, 0, count);
- byteReverse(ctx->in, 16);
- MD5Transform(ctx->buf, (uint32_t *) ctx->in);
+ memset(ctx, 0, sizeof(*ctx));
+}
- /* Now fill the next block with 56 bytes */
- memset(ctx->in, 0, 56);
- }
- else
- {
- /* Pad block to 56 bytes */
- memset(p, 0, count - 8);
- }
- byteReverse(ctx->in, 14);
- /* Append length in bits and transform */
- ((uint32_t *) ctx->in)[14] = ctx->bits[0];
- ((uint32_t *) ctx->in)[15] = ctx->bits[1];
+/* The four core functions - F1 is optimized somewhat */
+
+/* #define F1(x, y, z) (x & y | ~x & z) */
+#define F1(x, y, z) (z ^ (x & (y ^ z)))
+#define F2(x, y, z) F1(z, x, y)
+#define F3(x, y, z) (x ^ y ^ z)
+#define F4(x, y, z) (y ^ (x | ~z))
+
+/* This is the central step in the MD5 algorithm. */
+#define MD5STEP(f, w, x, y, z, data, s) \
+ ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
+
+/*
+ * The core of the MD5 algorithm, this alters an existing MD5 hash to
+ * reflect the addition of 16 longwords of new data. MD5Update blocks
+ * the data and converts bytes into longwords for this routine.
+ */
+void
+MD5Transform(uint32_t state[4], const uint8_t block[MD5_BLOCK_SIZE])
+{
+ uint32_t a, b, c, d, in[MD5_BLOCK_SIZE / 4];
+
+#if _MHD_BYTE_ORDER == _MHD_LITTLE_ENDIAN
+ memcpy(in, block, sizeof(in));
+#else
+ for (a = 0; a < MD5_BLOCK_SIZE / 4; a++)
+ {
+ in[a] = (uint32_t)(
+ (uint32_t)(block[a * 4 + 0]) |
+ (uint32_t)(block[a * 4 + 1]) << 8 |
+ (uint32_t)(block[a * 4 + 2]) << 16 |
+ (uint32_t)(block[a * 4 + 3]) << 24);
+ }
+#endif
- MD5Transform(ctx->buf, (uint32_t *) ctx->in);
- byteReverse((unsigned char *) ctx->buf, 4);
- memcpy(digest, ctx->buf, 16);
- memset(ctx, 0, sizeof(struct MD5Context)); /* In case it's sensitive */
+ a = state[0];
+ b = state[1];
+ c = state[2];
+ d = state[3];
+
+ MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
+ MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
+ MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
+ MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
+ MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
+ MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
+ MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
+ MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
+ MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
+ MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
+ MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
+ MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
+ MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
+ MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
+ MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
+ MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
+
+ MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
+ MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
+ MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
+ MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
+ MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
+ MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
+ MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
+ MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
+ MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
+ MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
+ MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
+ MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
+ MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
+ MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
+ MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
+ MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
+
+ MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
+ MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
+ MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
+ MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
+ MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
+ MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
+ MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
+ MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
+ MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
+ MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
+ MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
+ MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
+ MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
+ MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
+ MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
+ MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
+
+ MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
+ MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
+ MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
+ MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
+ MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
+ MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
+ MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
+ MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
+ MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
+ MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
+ MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
+ MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
+ MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
+ MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
+ MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
+ MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
+
+ state[0] += a;
+ state[1] += b;
+ state[2] += c;
+ state[3] += d;
}
/* end of md5.c */
diff --git a/src/microhttpd/md5.h b/src/microhttpd/md5.h
@@ -15,38 +15,50 @@
* will fill a supplied 16-byte array with the digest.
*/
-/* Brutally hacked by John Walker back from ANSI C to K&R (no
- prototypes) to maintain the tradition that Netfone will compile
- with Sun's original "cc". */
-
-#ifndef MD5_H
-#define MD5_H
+#ifndef MHD_MD5_H
+#define MHD_MD5_H
#include "platform.h"
-#ifdef WORDS_BIGENDIAN
-#define HIGHFIRST
-#endif
-#define MD5_DIGEST_SIZE 16
+#define MD5_BLOCK_SIZE 64
+#define MD5_DIGEST_SIZE 16
+#define MD5_DIGEST_STRING_LENGTH (MD5_DIGEST_SIZE * 2 + 1)
struct MD5Context
{
- uint32_t buf[4];
- uint32_t bits[2];
- unsigned char in[64];
+ uint32_t state[4]; /* state */
+ uint64_t count; /* number of bits, mod 2^64 */
+ uint8_t buffer[MD5_BLOCK_SIZE]; /* input buffer */
};
+/*
+ * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
+ * initialization constants.
+ */
+void MD5Init(struct MD5Context *ctx);
+
+/*
+ * Update context to reflect the concatenation of another buffer full
+ * of bytes.
+ */
+void MD5Update(struct MD5Context *ctx, const unsigned char *input, size_t len);
-void
-MD5Init(struct MD5Context *ctx);
+/*
+ * Pad pad to 64-byte boundary with the bit pattern
+ * 1 0* (64-bit count of bits processed, MSB-first)
+ */
+void MD5Pad(struct MD5Context *ctx);
-void
-MD5Update(struct MD5Context *ctx,
- const void *buf,
- unsigned len);
+/*
+ * Final wrapup--call MD5Pad, fill in digest and zero out ctx.
+ */
+void MD5Final(unsigned char digest[MD5_DIGEST_SIZE], struct MD5Context *ctx);
-void
-MD5Final(unsigned char digest[MD5_DIGEST_SIZE],
- struct MD5Context *ctx);
+/*
+ * The core of the MD5 algorithm, this alters an existing MD5 hash to
+ * reflect the addition of 16 longwords of new data. MD5Update blocks
+ * the data and converts bytes into longwords for this routine.
+ */
+void MD5Transform(uint32_t state[4], const uint8_t block[MD5_BLOCK_SIZE]);
-#endif /* !MD5_H */
+#endif /* !MHD_MD5_H */
diff --git a/w32/VS2013/libmicrohttpd.vcxproj b/w32/VS2013/libmicrohttpd.vcxproj
@@ -92,6 +92,7 @@
<ClInclude Include="..\..\src\microhttpd\internal.h" />
<ClInclude Include="..\..\src\microhttpd\md5.h" />
<ClInclude Include="..\..\src\microhttpd\memorypool.h" />
+ <ClInclude Include="..\..\src\microhttpd\MHD_byteorder.h" />
<ClInclude Include="..\..\src\microhttpd\MHD_limits.h" />
<ClInclude Include="..\..\src\microhttpd\reason_phrase.h" />
<ClInclude Include="..\..\src\microhttpd\response.h" />
diff --git a/w32/VS2013/libmicrohttpd.vcxproj.filters b/w32/VS2013/libmicrohttpd.vcxproj.filters
@@ -108,6 +108,9 @@
<ClInclude Include="..\..\src\microhttpd\MHD_limits.h">
<Filter>Source Files</Filter>
</ClInclude>
+ <ClInclude Include="..\..\src\microhttpd\MHD_byteorder.h">
+ <Filter>Source Files</Filter>
+ </ClInclude>
</ItemGroup>
<ItemGroup>
<ResourceCompile Include="microhttpd_dll_res_vc.rc">
