diff options
Diffstat (limited to 'lib/libalpm/md5.c')
| -rw-r--r-- | lib/libalpm/md5.c | 61 |
1 files changed, 25 insertions, 36 deletions
diff --git a/lib/libalpm/md5.c b/lib/libalpm/md5.c index 90635046..b4391a61 100644 --- a/lib/libalpm/md5.c +++ b/lib/libalpm/md5.c @@ -1,7 +1,12 @@ /* * RFC 1321 compliant MD5 implementation * - * Copyright (C) 2006-2007 Christophe Devine + * Copyright (C) 2006-2010, Brainspark B.V. + * + * This file is part of PolarSSL (http://www.polarssl.org) + * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org> + * + * All rights reserved. * * 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 @@ -24,29 +29,19 @@ /* * Pacman Notes: * - * Taken from the XySSL project at www.xyssl.org under terms of the - * GPL. This is from version 0.9 of the library, and has been modified + * Taken from the PolarSSL project at http://polarssl.org under terms of the + * GPL. This is from version 1.0.0 of the library, and has been modified * as following, which may be helpful for future updates: - * * remove "xyssl/config.h" include - * * change include from "xyssl/md5.h" to "md5.h" + * * remove "polarssl/config.h" include + * * change include from "polarssl/sha2.h" to "sha2.h" * * removal of HMAC code * * removal of SELF_TEST code - * * removal of ipad and opad from the md5_context struct in md5.h - * * change of md5_file prototype from - * int md5_file( char *path, unsigned char *output ) - * to - * int md5_file( const char *path, unsigned char *output ) - * * use a dynamically-allocated buffer in md5_file, and increase the size - * for performance reasons - * * various static/inline changes - * - * NOTE: XySSL has been renamed to PolarSSL, which is available at - * www.polarssl.org. If we update, we should get it from there. + * * removal of ipad and opad from the md5_context struct in sha2.h + * * increase the size of buffer for performance reasons + * * various static changes */ -#include <string.h> #include <stdio.h> -#include <stdlib.h> #include "md5.h" @@ -76,7 +71,7 @@ /* * MD5 context setup */ -static inline void md5_starts( md5_context *ctx ) +static void md5_starts( md5_context *ctx ) { ctx->total[0] = 0; ctx->total[1] = 0; @@ -87,7 +82,7 @@ static inline void md5_starts( md5_context *ctx ) ctx->state[3] = 0x10325476; } -static inline void md5_process( md5_context *ctx, unsigned char data[64] ) +static void md5_process( md5_context *ctx, const unsigned char data[64] ) { unsigned long X[16], A, B, C, D; @@ -161,7 +156,7 @@ static inline void md5_process( md5_context *ctx, unsigned char data[64] ) 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 ); @@ -213,9 +208,9 @@ static inline void md5_process( md5_context *ctx, unsigned char data[64] ) /* * MD5 process buffer */ -static inline void md5_update( md5_context *ctx, unsigned char *input, int ilen ) +static void md5_update( md5_context *ctx, const unsigned char *input, size_t ilen ) { - int fill; + size_t fill; unsigned long left; if( ilen <= 0 ) @@ -224,7 +219,7 @@ static inline void md5_update( md5_context *ctx, unsigned char *input, int ilen left = ctx->total[0] & 0x3F; fill = 64 - left; - ctx->total[0] += ilen; + ctx->total[0] += (unsigned long) ilen; ctx->total[0] &= 0xFFFFFFFF; if( ctx->total[0] < (unsigned long) ilen ) @@ -254,7 +249,7 @@ static inline void md5_update( md5_context *ctx, unsigned char *input, int ilen } } -static unsigned char md5_padding[64] = +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, @@ -265,7 +260,7 @@ static unsigned char md5_padding[64] = /* * MD5 final digest */ -static inline void md5_finish( md5_context *ctx, unsigned char output[16] ) +static void md5_finish( md5_context *ctx, unsigned char output[16] ) { unsigned long last, padn; unsigned long high, low; @@ -293,7 +288,7 @@ static inline void md5_finish( md5_context *ctx, unsigned char output[16] ) /* * output = MD5( input buffer ) */ -void md5( unsigned char *input, int ilen, unsigned char output[16] ) +void md5( const unsigned char *input, size_t ilen, unsigned char output[16] ) { md5_context ctx; @@ -312,25 +307,19 @@ int md5_file( const char *path, unsigned char output[16] ) FILE *f; size_t n; md5_context ctx; - unsigned char *buf; + unsigned char buf[4096]; - if( ( buf = calloc(8192, sizeof(unsigned char)) ) == NULL ) + if( ( f = fopen( path, "rb" ) ) == NULL ) return( 1 ); - if( ( f = fopen( path, "rb" ) ) == NULL ) { - free( buf ); - return( 1 ); - } - md5_starts( &ctx ); while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 ) - md5_update( &ctx, buf, (int) n ); + md5_update( &ctx, buf, n ); md5_finish( &ctx, output ); memset( &ctx, 0, sizeof( md5_context ) ); - free( buf ); if( ferror( f ) != 0 ) { |