From aad083ae472d7e57e1a06c157e54e613cf9ed458 Mon Sep 17 00:00:00 2001 From: Willy Tarreau Date: Fri, 7 Oct 2011 20:40:53 +0200 Subject: flx: replace md5 implementation with official one to fix 64-bit behaviour The previous implementation was derived from this "official" one with some optimizations which broke 64-bit platforms. By reverting to the original one, 64-bit platforms are working again. --- flx/fct1.c | 13 ++- flx/flx.h | 4 - flx/md5.c | 351 +++++++++++++++++++++++++++--------------------------------- flx/md5.h | 64 +++--------- 4 files changed, 182 insertions(+), 250 deletions(-) diff --git a/flx/fct1.c b/flx/fct1.c index c074a7a..1a6a7a4 100644 --- a/flx/fct1.c +++ b/flx/fct1.c @@ -16,6 +16,7 @@ #include "flx.h" #include "utils.h" +#include "md5.h" /* function that complete desc from file system informations */ t_file_desc *complete_info_from_file(char *path, t_file_desc *desc, int flag) { @@ -233,14 +234,14 @@ char *checksum_md5_from_file(char *file) { PFERROR("open(%s) for MD5 checksum", file); } else { - MD5_Init(&md5_ctx); + MD5Init(&md5_ctx); while ((size = read(fd, blk, BUFFER_LENGTH)) > 0) - MD5_Update(&md5_ctx, blk, size); + MD5Update(&md5_ctx, blk, size); close(fd); // if size = -1, there is a read error, don't do anything if (size == 0) { // last read is null checksum_md5 = MALLOC(16); - MD5_Final(checksum_md5, &md5_ctx); + MD5Final(checksum_md5, &md5_ctx); } } return (checksum_md5); @@ -251,10 +252,10 @@ char *checksum_md5_from_data(char *data, int len) { char *checksum_md5 = 0; MD5_CTX md5_ctx; - MD5_Init(&md5_ctx); - MD5_Update(&md5_ctx, data, len); + MD5Init(&md5_ctx); + MD5Update(&md5_ctx, data, len); checksum_md5 = MALLOC(16); - MD5_Final(checksum_md5, &md5_ctx); + MD5Final(checksum_md5, &md5_ctx); return (checksum_md5); } diff --git a/flx/flx.h b/flx/flx.h index 3315ded..e3b3b10 100644 --- a/flx/flx.h +++ b/flx/flx.h @@ -12,10 +12,6 @@ #define DUMPBASENAME "formilux-sig.dat" -#define MD5_Init(ctx) ToolsMD5Init(ctx) -#define MD5_Update(ctx, data, len) ToolsMD5Update(ctx, data, len) -#define MD5_Final(data, ctx) ToolsMD5Final(data, ctx) - #define O4(a) (htonl(*(int*)(a))) #define MATCH(f,m) (!strcmp(f, m)) diff --git a/flx/md5.c b/flx/md5.c index 3c42ff6..5323469 100644 --- a/flx/md5.c +++ b/flx/md5.c @@ -1,13 +1,3 @@ -/* FIXME: ces routines ne fournissent qu'un résultat sur 64 bits sur ALPHA !!! - ctx->buf[0]=ctx->buf[1]=0. -*/ - - -//#include -#if __BYTE_ORDER == __BIG_ENDIAN -#define HIGHFIRST 1 -#endif - /* * This code implements the MD5 message-digest algorithm. * The algorithm is due to Ron Rivest. This code was @@ -24,140 +14,121 @@ * needed on buffers full of bytes, and then call MD5Final, which * will fill a supplied 16-byte array with the digest. */ -#include /* for memcpy() */ + #include "md5.h" -#ifndef HIGHFIRST -#define byteReverse(buf, len) /* Nothing */ -#else -void byteReverse(unsigned char *buf, unsigned longs); +static void MD5Transform(unsigned int buf[4], unsigned int const in[16]); -#ifndef ASM_MD5 /* * Note: this code is harmless on little-endian machines. */ -void byteReverse(unsigned char *buf, unsigned longs) +static void byteReverse(unsigned char *buf, unsigned longs) { - uint32 t; - do { - t = (uint32) ((unsigned) buf[3] << 8 | buf[2]) << 16 | - ((unsigned) buf[1] << 8 | buf[0]); - *(uint32 *) buf = t; - buf += 4; - } while (--longs); + unsigned int t; + + do { + t = (unsigned int)((unsigned int) buf[3] << 8 | buf[2]) << 16 | + ((unsigned) buf[1] << 8 | buf[0]); + *(unsigned int *)buf = t; + buf += 4; + } while(--longs); } -#endif -#endif /* * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious * initialization constants. */ -void ToolsMD5Init(struct MD5Context *ctx) +void MD5Init(MD5_CTX *ctx) { - ctx->buf[0] = 0x67452301; - ctx->buf[1] = 0xefcdab89; - ctx->buf[2] = 0x98badcfe; - ctx->buf[3] = 0x10325476; + ctx->buf[0] = 0x67452301; + ctx->buf[1] = 0xefcdab89; + ctx->buf[2] = 0x98badcfe; + ctx->buf[3] = 0x10325476; - ctx->bits[0] = 0; - ctx->bits[1] = 0; + ctx->bits[0] = 0; + ctx->bits[1] = 0; } /* * Update context to reflect the concatenation of another buffer full * of bytes. */ -void ToolsMD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len) +void MD5Update(MD5_CTX *ctx, unsigned char const *buf, unsigned len) { - uint32 t; - - /* Update bitcount */ - - t = ctx->bits[0]; - if ((ctx->bits[0] = t + ((uint32) len << 3)) < t) - ctx->bits[1]++; /* Carry from low to high */ - ctx->bits[1] += len >> 29; + register unsigned int t; - t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */ + /* Update bitcount */ - /* Handle any leading odd-sized chunks */ + t = ctx->bits[0]; + if((ctx->bits[0] = t + ((unsigned int)len << 3)) < t) + ctx->bits[1]++; + ctx->bits[1] += len >> 29; - if (t) { - unsigned char *p = (unsigned char *) ctx->in + t; + t = (t >> 3) & 0x3f; - t = 64 - t; - if (len < t) { - memcpy(p, buf, len); - return; - } - memcpy(p, buf, t); - byteReverse(ctx->in, 16); - ToolsMD5Transform(ctx->buf, (uint32 *) ctx->in); - buf += t; - len -= t; - } - /* Process data in 64-byte chunks */ + if(t) { + unsigned char *p = (unsigned char *)ctx->in + t; - while (len >= 64) { - memcpy(ctx->in, buf, 64); - byteReverse(ctx->in, 16); - ToolsMD5Transform(ctx->buf, (uint32 *) ctx->in); - buf += 64; - len -= 64; + t = 64 - t; + if(len < t) { + memmove(p, buf, len); + return; } - - /* Handle any remaining bytes of data. */ - memcpy(ctx->in, buf, len); + memmove(p, buf, t); + byteReverse(ctx->in, 16); + MD5Transform(ctx->buf, (unsigned int*)ctx->in); + buf += t; + len -= t; + } + + while(len >= 64) { + memmove(ctx->in, buf, 64); + byteReverse(ctx->in, 16); + MD5Transform(ctx->buf, (unsigned int *)ctx->in); + buf += 64; + len -= 64; + } + + memmove(ctx->in, buf, len); } /* - * Final wrapup - pad to 64-byte boundary with the bit pattern + * Final wrapup - pad to 64-byte boundary with the bit pattern * 1 0* (64-bit count of bits processed, MSB-first) */ -void ToolsMD5Final(unsigned char digest[16], struct MD5Context *ctx) +void MD5Final(unsigned char *digest, MD5_CTX *ctx) { - unsigned count; - unsigned char *p; - - /* Compute number of bytes mod 64 */ - count = (ctx->bits[0] >> 3) & 0x3F; - - /* 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; - - /* Bytes of padding needed to make 64 bytes */ - count = 64 - 1 - count; - - /* 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); - ToolsMD5Transform(ctx->buf, (uint32 *) ctx->in); - - /* 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 *) ctx->in)[14] = ctx->bits[0]; - ((uint32 *) ctx->in)[15] = ctx->bits[1]; - - ToolsMD5Transform(ctx->buf, (uint32 *) ctx->in); - byteReverse((unsigned char *) ctx->buf, 4); - memcpy(digest, ctx->buf, 16); - memset(ctx, 0, sizeof(ctx)); /* In case it's sensitive */ + unsigned int count; + unsigned char *p; + + count = (ctx->bits[0] >> 3) & 0x3F; + + p = ctx->in + count; + *p++ = 0x80; + + count = 64 - 1 - count; + + if(count < 8) { + memset(p, 0, count); + byteReverse(ctx->in, 16); + MD5Transform(ctx->buf, (unsigned int*)ctx->in); + 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 */ + ((unsigned int*)ctx->in)[14] = ctx->bits[0]; + ((unsigned int*)ctx->in)[15] = ctx->bits[1]; + + MD5Transform(ctx->buf, (unsigned int*)ctx->in); + byteReverse((unsigned char *)ctx->buf, 4); + memmove(digest, ctx->buf, 16); + memset(ctx, 0, sizeof(ctx)); } -#ifndef ASM_MD5 - /* The four core functions - F1 is optimized somewhat */ /* #define F1(x, y, z) (x & y | ~x & z) */ @@ -168,94 +139,92 @@ void ToolsMD5Final(unsigned char digest[16], struct MD5Context *ctx) /* 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<>(32-s), w += x ) + ( 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 ToolsMD5Transform(uint32 buf[4], uint32 const in[16]) +static void MD5Transform(unsigned int buf[4], unsigned int const in[16]) { - register uint32 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; + register unsigned int 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; } - -#endif diff --git a/flx/md5.h b/flx/md5.h index 7e287a6..edc0316 100644 --- a/flx/md5.h +++ b/flx/md5.h @@ -1,55 +1,21 @@ -/* - * SignFS : Tool to have an image of the filesystem - * - * Copyright (C) 1999-2001, Willy Tarreau - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program 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 General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -/* - * File: md5.h - * Object: list and hash functions - * Version: 0.3 - * Date: Sun Dec 23 14:21:50 CET 2001 - * Autors: Willy Tarreau - */ - -#ifndef MD5_H -#define MD5_H - -#ifdef __alpha -typedef unsigned int uint32; -#else -typedef unsigned long uint32; -#endif +#ifndef _MD5_H_ +#define _MD5_H_ struct MD5Context { - uint32 buf[4]; - uint32 bits[2]; - unsigned char in[64]; + unsigned int buf[4]; + unsigned int bits[2]; + unsigned char in[64]; }; -void ToolsMD5Init(struct MD5Context *context); -void ToolsMD5Update(struct MD5Context *context, unsigned char const *buf, - unsigned len); -void ToolsMD5Final(unsigned char digest[16], struct MD5Context *context); -void ToolsMD5Transform(uint32 buf[4], uint32 const in[16]); - -/* - * This is needed to make RSAREF happy on some MS-DOS compilers. - */ typedef struct MD5Context MD5_CTX; -#endif /* !MD5_H */ +/* initialize a MD5 context */ +void MD5Init(MD5_CTX *context); + +/* add data to the hash */ +void MD5Update(MD5_CTX *context, unsigned char const *buf, unsigned len); + +/* finalize hash */ +void MD5Final(unsigned char *digest, MD5_CTX *context); + +#endif // _MD5_H_ -- 1.7.2.3