diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libalpm/Makefile.am | 1 | ||||
| -rw-r--r-- | lib/libalpm/add.c | 13 | ||||
| -rw-r--r-- | lib/libalpm/md5.c | 561 | ||||
| -rw-r--r-- | lib/libalpm/md5.h | 122 | ||||
| -rw-r--r-- | lib/libalpm/md5driver.c | 93 | ||||
| -rw-r--r-- | lib/libalpm/remove.c | 1 | ||||
| -rw-r--r-- | lib/libalpm/sync.c | 1 | ||||
| -rw-r--r-- | lib/libalpm/util.c | 42 |
8 files changed, 422 insertions, 412 deletions
diff --git a/lib/libalpm/Makefile.am b/lib/libalpm/Makefile.am index fd354264..37053707 100644 --- a/lib/libalpm/Makefile.am +++ b/lib/libalpm/Makefile.am @@ -24,7 +24,6 @@ libalpm_la_SOURCES = \ handle.h handle.c \ log.h log.c \ md5.h md5.c \ - md5driver.c \ package.h package.c \ provide.h provide.c \ remove.h remove.c \ diff --git a/lib/libalpm/add.c b/lib/libalpm/add.c index 5c8f944b..d2b0c582 100644 --- a/lib/libalpm/add.c +++ b/lib/libalpm/add.c @@ -41,7 +41,6 @@ #include "util.h" #include "error.h" #include "cache.h" -#include "md5.h" #include "log.h" #include "backup.h" #include "package.h" @@ -510,8 +509,8 @@ static int extract_single_file(struct archive *archive, return(1); } - hash_local = _alpm_MDFile(filename); - hash_pkg = _alpm_MDFile(tempfile); + hash_local = alpm_get_md5sum(filename); + hash_pkg = alpm_get_md5sum(tempfile); /* append the new md5 hash to it's respective entry * in newpkg's backup (it will be the new orginal) */ @@ -523,7 +522,8 @@ static int extract_single_file(struct archive *archive, return(0); } char *backup = NULL; - int backup_len = strlen(oldbackup) + 34; /* tab char, null byte and MD5 (32 char) */ + /* length is tab char, null byte and MD5 (32 char) */ + int backup_len = strlen(oldbackup) + 34; backup = malloc(backup_len); if(!backup) { RET_ERR(PM_ERR_MEMORY, -1); @@ -655,14 +655,15 @@ static int extract_single_file(struct archive *archive, for(b = alpm_pkg_get_backup(newpkg); b; b = b->next) { char *backup = NULL, *hash = NULL; char *oldbackup = alpm_list_getdata(b); - int backup_len = strlen(oldbackup) + 34; /* tab char, null byte and MD5 (32 char) */ + /* length is tab char, null byte and MD5 (32 char) */ + int backup_len = strlen(oldbackup) + 34; if(!oldbackup || strcmp(oldbackup, entryname) != 0) { return(0); } _alpm_log(PM_LOG_DEBUG, "appending backup entry for %s", filename); - hash = _alpm_MDFile(filename); + hash = alpm_get_md5sum(filename); backup = malloc(backup_len); if(!backup) { RET_ERR(PM_ERR_MEMORY, -1); diff --git a/lib/libalpm/md5.c b/lib/libalpm/md5.c index 6d5aa6a3..7cb003f0 100644 --- a/lib/libalpm/md5.c +++ b/lib/libalpm/md5.c @@ -1,307 +1,332 @@ -/* MD5C.C - RSA Data Security, Inc., MD5 message-digest algorithm +/* + * RFC 1321 compliant MD5 implementation + * + * Copyright (C) 2006-2007 Christophe Devine + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License, version 2.1 as published by the Free Software Foundation. + * + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301 USA */ - -/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All -rights reserved. - -License to copy and use this software is granted provided that it -is identified as the "RSA Data Security, Inc. MD5 Message-Digest -Algorithm" in all material mentioning or referencing this software -or this function. - -License is also granted to make and use derivative works provided -that such works are identified as "derived from the RSA Data -Security, Inc. MD5 Message-Digest Algorithm" in all material -mentioning or referencing the derived work. - -RSA Data Security, Inc. makes no representations concerning either -the merchantability of this software or the suitability of this -software for any particular purpose. It is provided "as is" -without express or implied warranty of any kind. - -These notices must be retained in any copies of any part of this -documentation and/or software. +/* + * The MD5 algorithm was designed by Ron Rivest in 1991. + * + * http://www.ietf.org/rfc/rfc1321.txt */ +/* + * Pacman Notes: + * + * Taken from the XySSL project at www.xyssl.org under terms of the + * LGPL. This is from version 0.7 of the library, and has been modified + * as following, which may be helpful for future updates: + * * change include from "xyssl/md5.h" to "md5.h" + * * removal of HMAC code + * * removal of SELF_TEST code + * * removal of ipad and opad from the md5_context struct in md5.h + */ + +#ifndef _CRT_SECURE_NO_DEPRECATE +#define _CRT_SECURE_NO_DEPRECATE 1 +#endif #include <string.h> +#include <stdio.h> #include "md5.h" -/* Constants for MD5Transform routine. +/* + * 32-bit integer manipulation macros (little endian) */ +#ifndef GET_UINT32_LE +#define GET_UINT32_LE(n,b,i) \ +{ \ + (n) = ( (unsigned long) (b)[(i) ] ) \ + | ( (unsigned long) (b)[(i) + 1] << 8 ) \ + | ( (unsigned long) (b)[(i) + 2] << 16 ) \ + | ( (unsigned long) (b)[(i) + 3] << 24 ); \ +} +#endif + +#ifndef PUT_UINT32_LE +#define PUT_UINT32_LE(n,b,i) \ +{ \ + (b)[(i) ] = (unsigned char) ( (n) ); \ + (b)[(i) + 1] = (unsigned char) ( (n) >> 8 ); \ + (b)[(i) + 2] = (unsigned char) ( (n) >> 16 ); \ + (b)[(i) + 3] = (unsigned char) ( (n) >> 24 ); \ +} +#endif -#define S11 7 -#define S12 12 -#define S13 17 -#define S14 22 -#define S21 5 -#define S22 9 -#define S23 14 -#define S24 20 -#define S31 4 -#define S32 11 -#define S33 16 -#define S34 23 -#define S41 6 -#define S42 10 -#define S43 15 -#define S44 21 - -static void MD5Transform(UINT4 [4], unsigned char [64]); -static void Encode(unsigned char *, UINT4 *, unsigned int); -static void Decode(UINT4 *, unsigned char *, unsigned int); - -static unsigned char PADDING[64] = { - 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 -}; - -/* F, G, H and I are basic MD5 functions. +/* + * MD5 context setup */ -#define F(x, y, z) (((x) & (y)) | ((~x) & (z))) -#define G(x, y, z) (((x) & (z)) | ((y) & (~z))) -#define H(x, y, z) ((x) ^ (y) ^ (z)) -#define I(x, y, z) ((y) ^ ((x) | (~z))) +void md5_starts( md5_context *ctx ) +{ + ctx->total[0] = 0; + ctx->total[1] = 0; -/* ROTATE_LEFT rotates x left n bits. - */ -#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n)))) + ctx->state[0] = 0x67452301; + ctx->state[1] = 0xEFCDAB89; + ctx->state[2] = 0x98BADCFE; + ctx->state[3] = 0x10325476; +} -/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4. -Rotation is separate from addition to prevent recomputation. - */ -#define FF(a, b, c, d, x, s, ac) { \ - (a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \ - (a) = ROTATE_LEFT ((a), (s)); \ - (a) += (b); \ - } -#define GG(a, b, c, d, x, s, ac) { \ - (a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \ - (a) = ROTATE_LEFT ((a), (s)); \ - (a) += (b); \ - } -#define HH(a, b, c, d, x, s, ac) { \ - (a) += H ((b), (c), (d)) + (x) + (UINT4)(ac); \ - (a) = ROTATE_LEFT ((a), (s)); \ - (a) += (b); \ - } -#define II(a, b, c, d, x, s, ac) { \ - (a) += I ((b), (c), (d)) + (x) + (UINT4)(ac); \ - (a) = ROTATE_LEFT ((a), (s)); \ - (a) += (b); \ - } - -/* MD5 initialization. Begins an MD5 operation, writing a new context. - */ -void _alpm_MD5Init (context) -MD5_CTX *context; /* context */ +static void md5_process( md5_context *ctx, unsigned char data[64] ) { - context->count[0] = context->count[1] = 0; - /* Load magic initialization constants. -*/ - context->state[0] = 0x67452301; - context->state[1] = 0xefcdab89; - context->state[2] = 0x98badcfe; - context->state[3] = 0x10325476; + unsigned long X[16], A, B, C, D; + + GET_UINT32_LE( X[ 0], data, 0 ); + GET_UINT32_LE( X[ 1], data, 4 ); + GET_UINT32_LE( X[ 2], data, 8 ); + GET_UINT32_LE( X[ 3], data, 12 ); + GET_UINT32_LE( X[ 4], data, 16 ); + GET_UINT32_LE( X[ 5], data, 20 ); + GET_UINT32_LE( X[ 6], data, 24 ); + GET_UINT32_LE( X[ 7], data, 28 ); + GET_UINT32_LE( X[ 8], data, 32 ); + GET_UINT32_LE( X[ 9], data, 36 ); + GET_UINT32_LE( X[10], data, 40 ); + GET_UINT32_LE( X[11], data, 44 ); + GET_UINT32_LE( X[12], data, 48 ); + GET_UINT32_LE( X[13], data, 52 ); + GET_UINT32_LE( X[14], data, 56 ); + GET_UINT32_LE( X[15], data, 60 ); + +#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n))) + +#define P(a,b,c,d,k,s,t) \ +{ \ + a += F(b,c,d) + X[k] + t; a = S(a,s) + b; \ +} + + A = ctx->state[0]; + B = ctx->state[1]; + C = ctx->state[2]; + D = ctx->state[3]; + +#define F(x,y,z) (z ^ (x & (y ^ z))) + + P( A, B, C, D, 0, 7, 0xD76AA478 ); + P( D, A, B, C, 1, 12, 0xE8C7B756 ); + P( C, D, A, B, 2, 17, 0x242070DB ); + P( B, C, D, A, 3, 22, 0xC1BDCEEE ); + P( A, B, C, D, 4, 7, 0xF57C0FAF ); + P( D, A, B, C, 5, 12, 0x4787C62A ); + P( C, D, A, B, 6, 17, 0xA8304613 ); + P( B, C, D, A, 7, 22, 0xFD469501 ); + P( A, B, C, D, 8, 7, 0x698098D8 ); + P( D, A, B, C, 9, 12, 0x8B44F7AF ); + P( C, D, A, B, 10, 17, 0xFFFF5BB1 ); + P( B, C, D, A, 11, 22, 0x895CD7BE ); + P( A, B, C, D, 12, 7, 0x6B901122 ); + P( D, A, B, C, 13, 12, 0xFD987193 ); + P( C, D, A, B, 14, 17, 0xA679438E ); + P( B, C, D, A, 15, 22, 0x49B40821 ); + +#undef F + +#define F(x,y,z) (y ^ (z & (x ^ y))) + + P( A, B, C, D, 1, 5, 0xF61E2562 ); + P( D, A, B, C, 6, 9, 0xC040B340 ); + P( C, D, A, B, 11, 14, 0x265E5A51 ); + P( B, C, D, A, 0, 20, 0xE9B6C7AA ); + P( A, B, C, D, 5, 5, 0xD62F105D ); + P( D, A, B, C, 10, 9, 0x02441453 ); + P( C, D, A, B, 15, 14, 0xD8A1E681 ); + P( B, C, D, A, 4, 20, 0xE7D3FBC8 ); + P( A, B, C, D, 9, 5, 0x21E1CDE6 ); + P( D, A, B, C, 14, 9, 0xC33707D6 ); + P( C, D, A, B, 3, 14, 0xF4D50D87 ); + P( B, C, D, A, 8, 20, 0x455A14ED ); + P( A, B, C, D, 13, 5, 0xA9E3E905 ); + P( D, A, B, C, 2, 9, 0xFCEFA3F8 ); + P( C, D, A, B, 7, 14, 0x676F02D9 ); + P( B, C, D, A, 12, 20, 0x8D2A4C8A ); + +#undef F + +#define F(x,y,z) (x ^ y ^ z) + + P( A, B, C, D, 5, 4, 0xFFFA3942 ); + P( D, A, B, C, 8, 11, 0x8771F681 ); + P( C, D, A, B, 11, 16, 0x6D9D6122 ); + P( B, C, D, A, 14, 23, 0xFDE5380C ); + P( A, B, C, D, 1, 4, 0xA4BEEA44 ); + P( D, A, B, C, 4, 11, 0x4BDECFA9 ); + P( C, D, A, B, 7, 16, 0xF6BB4B60 ); + P( B, C, D, A, 10, 23, 0xBEBFBC70 ); + P( A, B, C, D, 13, 4, 0x289B7EC6 ); + P( D, A, B, C, 0, 11, 0xEAA127FA ); + P( C, D, A, B, 3, 16, 0xD4EF3085 ); + P( B, C, D, A, 6, 23, 0x04881D05 ); + P( A, B, C, D, 9, 4, 0xD9D4D039 ); + P( D, A, B, C, 12, 11, 0xE6DB99E5 ); + P( C, D, A, B, 15, 16, 0x1FA27CF8 ); + P( B, C, D, A, 2, 23, 0xC4AC5665 ); + +#undef F + +#define F(x,y,z) (y ^ (x | ~z)) + + P( A, B, C, D, 0, 6, 0xF4292244 ); + P( D, A, B, C, 7, 10, 0x432AFF97 ); + P( C, D, A, B, 14, 15, 0xAB9423A7 ); + P( B, C, D, A, 5, 21, 0xFC93A039 ); + P( A, B, C, D, 12, 6, 0x655B59C3 ); + P( D, A, B, C, 3, 10, 0x8F0CCC92 ); + P( C, D, A, B, 10, 15, 0xFFEFF47D ); + P( B, C, D, A, 1, 21, 0x85845DD1 ); + P( A, B, C, D, 8, 6, 0x6FA87E4F ); + P( D, A, B, C, 15, 10, 0xFE2CE6E0 ); + P( C, D, A, B, 6, 15, 0xA3014314 ); + P( B, C, D, A, 13, 21, 0x4E0811A1 ); + P( A, B, C, D, 4, 6, 0xF7537E82 ); + P( D, A, B, C, 11, 10, 0xBD3AF235 ); + P( C, D, A, B, 2, 15, 0x2AD7D2BB ); + P( B, C, D, A, 9, 21, 0xEB86D391 ); + +#undef F + + ctx->state[0] += A; + ctx->state[1] += B; + ctx->state[2] += C; + ctx->state[3] += D; } -/* MD5 block update operation. Continues an MD5 message-digest - operation, processing another message block, and updating the - context. +/* + * MD5 process buffer */ -void _alpm_MD5Update (context, input, inputLen) -MD5_CTX *context; /* context */ -unsigned char *input; /* input block */ -unsigned int inputLen; /* length of input block */ +void md5_update( md5_context *ctx, unsigned char *input, int ilen ) { - unsigned int i, index, partLen; - - /* Compute number of bytes mod 64 */ - index = (unsigned int)((context->count[0] >> 3) & 0x3F); + int fill; + unsigned long left; + + if( ilen <= 0 ) + return; + + left = ctx->total[0] & 0x3F; + fill = 64 - left; + + ctx->total[0] += ilen; + ctx->total[0] &= 0xFFFFFFFF; + + if( ctx->total[0] < (unsigned long) ilen ) + ctx->total[1]++; + + if( left && ilen >= fill ) + { + memcpy( (void *) (ctx->buffer + left), + (void *) input, fill ); + md5_process( ctx, ctx->buffer ); + input += fill; + ilen -= fill; + left = 0; + } + + while( ilen >= 64 ) + { + md5_process( ctx, input ); + input += 64; + ilen -= 64; + } + + if( ilen > 0 ) + { + memcpy( (void *) (ctx->buffer + left), + (void *) input, ilen ); + } +} - /* Update number of bits */ - if ((context->count[0] += ((UINT4)inputLen << 3)) +static const unsigned char md5_padding[64] = +{ + 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 +}; - < ((UINT4)inputLen << 3)) - context->count[1]++; - context->count[1] += ((UINT4)inputLen >> 29); +/* + * MD5 final digest + */ +void md5_finish( md5_context *ctx, unsigned char *output ) +{ + unsigned long last, padn; + unsigned long high, low; + unsigned char msglen[8]; - partLen = 64 - index; + high = ( ctx->total[0] >> 29 ) + | ( ctx->total[1] << 3 ); + low = ( ctx->total[0] << 3 ); - /* Transform as many times as possible. -*/ - if (inputLen >= partLen) { - memcpy ((POINTER)&context->buffer[index], (POINTER)input, partLen); - MD5Transform (context->state, context->buffer); + PUT_UINT32_LE( low, msglen, 0 ); + PUT_UINT32_LE( high, msglen, 4 ); - for (i = partLen; i + 63 < inputLen; i += 64) - MD5Transform (context->state, &input[i]); + last = ctx->total[0] & 0x3F; + padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last ); - index = 0; - } - else - i = 0; + md5_update( ctx, (unsigned char *) md5_padding, padn ); + md5_update( ctx, msglen, 8 ); - /* Buffer remaining input */ - memcpy ((POINTER)&context->buffer[index], (POINTER)&input[i], inputLen-i); + PUT_UINT32_LE( ctx->state[0], output, 0 ); + PUT_UINT32_LE( ctx->state[1], output, 4 ); + PUT_UINT32_LE( ctx->state[2], output, 8 ); + PUT_UINT32_LE( ctx->state[3], output, 12 ); } -/* MD5 finalization. Ends an MD5 message-digest operation, writing the - the message digest and zeroizing the context. +/* + * Output = MD5( input buffer ) */ -void _alpm_MD5Final (digest, context) -unsigned char digest[16]; /* message digest */ -MD5_CTX *context; /* context */ +void md5( unsigned char *input, int ilen, + unsigned char *output ) { - unsigned char bits[8]; - unsigned int index, padLen; + md5_context ctx; - /* Save number of bits */ - Encode (bits, context->count, 8); + md5_starts( &ctx ); + md5_update( &ctx, input, ilen ); + md5_finish( &ctx, output ); - /* Pad out to 56 mod 64. -*/ - index = (unsigned int)((context->count[0] >> 3) & 0x3f); - padLen = (index < 56) ? (56 - index) : (120 - index); - _alpm_MD5Update (context, PADDING, padLen); - - /* Append length (before padding) */ - _alpm_MD5Update (context, bits, 8); - - /* Store state in digest */ - Encode (digest, context->state, 16); - - /* Zeroize sensitive information. -*/ - memset ((POINTER)context, 0, sizeof (*context)); + memset( &ctx, 0, sizeof( md5_context ) ); } -/* MD5 basic transformation. Transforms state based on block. +/* + * Output = MD5( file contents ) */ -static void MD5Transform (state, block) -UINT4 state[4]; -unsigned char block[64]; +int md5_file( char *path, unsigned char *output ) { - UINT4 a = state[0], b = state[1], c = state[2], d = state[3], x[16]; - - Decode (x, block, 64); - - /* Round 1 */ - FF (a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */ - FF (d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */ - FF (c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */ - FF (b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */ - FF (a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */ - FF (d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */ - FF (c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */ - FF (b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */ - FF (a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */ - FF (d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */ - FF (c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */ - FF (b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */ - FF (a, b, c, d, x[12], S11, 0x6b901122); /* 13 */ - FF (d, a, b, c, x[13], S12, 0xfd987193); /* 14 */ - FF (c, d, a, b, x[14], S13, 0xa679438e); /* 15 */ - FF (b, c, d, a, x[15], S14, 0x49b40821); /* 16 */ - - /* Round 2 */ - GG (a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */ - GG (d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */ - GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */ - GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */ - GG (a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */ - GG (d, a, b, c, x[10], S22, 0x2441453); /* 22 */ - GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */ - GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */ - GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */ - GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */ - GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */ - - GG (b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */ - GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */ - GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */ - GG (c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */ - GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */ - - /* Round 3 */ - HH (a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */ - HH (d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */ - HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */ - HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */ - HH (a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */ - HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */ - HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */ - HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */ - HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */ - HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */ - HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */ - HH (b, c, d, a, x[ 6], S34, 0x4881d05); /* 44 */ - HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */ - HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */ - HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */ - HH (b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */ - - /* Round 4 */ - II (a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */ - II (d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */ - II (c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */ - II (b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */ - II (a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */ - II (d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */ - II (c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */ - II (b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */ - II (a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */ - II (d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */ - II (c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */ - II (b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */ - II (a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */ - II (d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */ - II (c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */ - II (b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */ - - state[0] += a; - state[1] += b; - state[2] += c; - state[3] += d; - - /* Zeroize sensitive information. - -*/ - memset ((POINTER)x, 0, sizeof (x)); -} + FILE *f; + size_t n; + md5_context ctx; + unsigned char buf[1024]; -/* Encodes input (UINT4) into output (unsigned char). Assumes len is - a multiple of 4. - */ -static void Encode (output, input, len) -unsigned char *output; -UINT4 *input; -unsigned int len; -{ - unsigned int i, j; - - for (i = 0, j = 0; j < len; i++, j += 4) { - output[j] = (unsigned char)(input[i] & 0xff); - output[j+1] = (unsigned char)((input[i] >> 8) & 0xff); - output[j+2] = (unsigned char)((input[i] >> 16) & 0xff); - output[j+3] = (unsigned char)((input[i] >> 24) & 0xff); - } -} + if( ( f = fopen( path, "rb" ) ) == NULL ) + return( 1 ); -/* Decodes input (unsigned char) into output (UINT4). Assumes len is - a multiple of 4. - */ -static void Decode (output, input, len) -UINT4 *output; -unsigned char *input; -unsigned int len; -{ - unsigned int i, j; + md5_starts( &ctx ); + + while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 ) + md5_update( &ctx, buf, (int) n ); + + md5_finish( &ctx, output ); + + memset( &ctx, 0, sizeof( md5_context ) ); + + if( ferror( f ) != 0 ) + { + fclose( f ); + return( 2 ); + } - for (i = 0, j = 0; j < len; i++, j += 4) - output[i] = ((UINT4)input[j]) | (((UINT4)input[j+1]) << 8) | - (((UINT4)input[j+2]) << 16) | (((UINT4)input[j+3]) << 24); + fclose( f ); + return( 0 ); } -/* vim: set ts=2 sw=2 noet: */ diff --git a/lib/libalpm/md5.h b/lib/libalpm/md5.h index 8ae324e3..d652c2e4 100644 --- a/lib/libalpm/md5.h +++ b/lib/libalpm/md5.h @@ -1,53 +1,91 @@ -/* MD5.H - header file for MD5C.C +/* + * RFC 1321 compliant MD5 implementation + * + * Copyright (C) 2006-2007 Christophe Devine + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License, version 2.1 as published by the Free Software Foundation. + * + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301 USA */ -/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All -rights reserved. - -License to copy and use this software is granted provided that it -is identified as the "RSA Data Security, Inc. MD5 Message-Digest -Algorithm" in all material mentioning or referencing this software -or this function. - -License is also granted to make and use derivative works provided -that such works are identified as "derived from the RSA Data -Security, Inc. MD5 Message-Digest Algorithm" in all material -mentioning or referencing the derived work. - -RSA Data Security, Inc. makes no representations concerning either -the merchantability of this software or the suitability of this -software for any particular purpose. It is provided "as is" -without express or implied warranty of any kind. - -These notices must be retained in any copies of any part of this -documentation and/or software. */ -#ifndef _ALPM_MD5_H -#define _ALPM_MD5_H +/** + * \file md5.h + */ +#ifndef _MD5_H +#define _MD5_H -/* POINTER defines a generic pointer type */ -typedef unsigned char *POINTER; +#ifdef __cplusplus +extern "C" { +#endif -/* UINT2 defines a two byte word */ -typedef unsigned short int UINT2; +/** + * \brief MD5 context structure + */ +typedef struct +{ + unsigned long total[2]; /*!< number of bytes processed */ + unsigned long state[4]; /*!< intermediate digest state */ + unsigned char buffer[64]; /*!< data block being processed */ +} +md5_context; -/* UINT4 defines a four byte word */ -typedef unsigned int UINT4; +/** + * \brief MD5 context setup + * + * \param ctx context to be initialized + */ +void md5_starts( md5_context *ctx ); +/** + * \brief MD5 process buffer + * + * \param ctx MD5 context + * \param input buffer holding the data + * \param ilen length of the input data + */ +void md5_update( md5_context *ctx, unsigned char *input, int ilen ); -/* MD5 context. */ -typedef struct { - UINT4 state[4]; /* state (ABCD) */ - UINT4 count[2]; /* number of bits, modulo 2^64 (lsb first) */ - unsigned char buffer[64]; /* input buffer */ -} MD5_CTX; +/** + * \brief MD5 final digest + * + * \param ctx MD5 context + * \param output MD5 checksum result + */ +void md5_finish( md5_context *ctx, unsigned char *output ); -void _alpm_MD5Init(MD5_CTX *); -void _alpm_MD5Update(MD5_CTX *, unsigned char *, unsigned int); -void _alpm_MD5Final(unsigned char [16], MD5_CTX *); +/** + * \brief Output = MD5( input buffer ) + * + * \param input buffer holding the data + * \param ilen length of the input data + * \param output MD5 checksum result + */ +void md5( unsigned char *input, int ilen, + unsigned char *output ); -char* _alpm_MDFile(char *); -void _alpm_MDPrint(unsigned char [16]); +/** + * \brief Output = MD5( file contents ) + * + * \param path input file name + * \param output MD5 checksum result + * + * \return 0 if successful, 1 if fopen failed, + * or 2 if fread failed + */ +int md5_file( char *path, unsigned char *output ); -#endif /* _ALPM_MD5_H */ +#ifdef __cplusplus +} +#endif -/* vim: set ts=2 sw=2 noet: */ +#endif /* md5.h */ diff --git a/lib/libalpm/md5driver.c b/lib/libalpm/md5driver.c deleted file mode 100644 index caeddc14..00000000 --- a/lib/libalpm/md5driver.c +++ /dev/null @@ -1,93 +0,0 @@ -/* MD5DRIVER.C - taken and modified from MDDRIVER.C (license below) */ -/* for use in pacman. */ -/*********************************************************************/ - -/* Copyright (C) 1990-2, RSA Data Security, Inc. Created 1990. All -rights reserved. - -RSA Data Security, Inc. makes no representations concerning either -the merchantability of this software or the suitability of this -software for any particular purpose. It is provided "as is" -without express or implied warranty of any kind. - -These notices must be retained in any copies of any part of this -documentation and/or software. - */ - -/* The following makes MD default to MD5 if it has not already been - defined with C compiler flags. - */ -#define MD MD5 - -#include "config.h" - -#include <stdlib.h> -#include <stdio.h> -#include <string.h> - -/* libalpm */ -#include "alpm.h" -#include "log.h" -#include "util.h" -#include "md5.h" - -/* Length of test block, number of test blocks. - */ -#define TEST_BLOCK_LEN 1000 -#define TEST_BLOCK_COUNT 1000 - -#define MD_CTX MD5_CTX -#define MDInit _alpm_MD5Init -#define MDUpdate _alpm_MD5Update -#define MDFinal _alpm_MD5Final - -/** Get the md5 sum of file. - * @param name name of the file - * @return the checksum on success, NULL on error - * @addtogroup alpm_misc - */ -char SYMEXPORT *alpm_get_md5sum(char *name) -{ - ALPM_LOG_FUNC; - - ASSERT(name != NULL, return(NULL)); - - return(_alpm_MDFile(name)); -} - -char* _alpm_MDFile(char *filename) -{ - FILE *file; - MD_CTX context; - int len; - char hex[3]; - unsigned char buffer[1024], digest[16]; - - ALPM_LOG_FUNC; - - if((file = fopen(filename, "rb")) == NULL) { - _alpm_log(PM_LOG_ERROR, _("md5: %s can't be opened\n"), filename); - } else { - char *ret; - int i; - - MDInit(&context); - while((len = fread(buffer, 1, 1024, file))) { - MDUpdate(&context, buffer, len); - } - MDFinal(digest, &context); - fclose(file); - - ret = calloc(33, sizeof(char)); - for(i = 0; i < 16; i++) { - snprintf(hex, 3, "%02x", digest[i]); - strncat(ret, hex, 2); - } - - _alpm_log(PM_LOG_DEBUG, "md5(%s) = %s", filename, ret); - return(ret); - } - return(NULL); -} - -/* vim: set ts=2 sw=2 noet: */ diff --git a/lib/libalpm/remove.c b/lib/libalpm/remove.c index 22d209a3..cf33d835 100644 --- a/lib/libalpm/remove.c +++ b/lib/libalpm/remove.c @@ -39,7 +39,6 @@ #include "trans.h" #include "util.h" #include "error.h" -#include "md5.h" #include "log.h" #include "backup.h" #include "package.h" diff --git a/lib/libalpm/sync.c b/lib/libalpm/sync.c index 1a376d76..fee5eff0 100644 --- a/lib/libalpm/sync.c +++ b/lib/libalpm/sync.c @@ -47,7 +47,6 @@ #include "util.h" #include "handle.h" #include "alpm.h" -#include "md5.h" #include "server.h" pmsyncpkg_t *_alpm_sync_new(int type, pmpkg_t *spkg, void *data) diff --git a/lib/libalpm/util.c b/lib/libalpm/util.c index ddc3edcc..5f431171 100644 --- a/lib/libalpm/util.c +++ b/lib/libalpm/util.c @@ -48,6 +48,7 @@ #include "error.h" #include "package.h" #include "alpm.h" +#include "md5.h" #ifndef HAVE_STRVERSCMP /* GNU's strverscmp() function, taken from glibc 2.3.2 sources @@ -541,5 +542,46 @@ int _alpm_str_cmp(const void *s1, const void *s2) return(strcmp(s1, s2)); } +/** Get the md5 sum of file. + * @param filename name of the file + * @return the checksum on success, NULL on error + * @addtogroup alpm_misc + */ +char SYMEXPORT *alpm_get_md5sum(char *filename) +{ + unsigned char output[16]; + char *md5sum; + int ret, i; + + ALPM_LOG_FUNC; + + ASSERT(filename != NULL, return(NULL)); + + /* allocate 32 chars plus 1 for null */ + md5sum = calloc(33, sizeof(char)); + ret = md5_file(filename, output); + + if (ret > 0) { + if (ret == 1) { + _alpm_log(PM_LOG_ERROR, _("md5: %s can't be opened\n"), filename); + } else if (ret == 2) { + _alpm_log(PM_LOG_ERROR, _("md5: %s can't be read\n"), filename); + } + + return(NULL); + } + + /* Convert the result to something readable */ + for (i = 0; i < 16; i++) { + /* sprintf is acceptable here because we know our output */ + sprintf(md5sum +(i * 2), "%02x", output[i]); + } + md5sum[32] = '\0'; + + _alpm_log(PM_LOG_DEBUG, "md5(%s) = %s", filename, md5sum); + return(md5sum); +} + + /* vim: set ts=2 sw=2 noet: */ |