PHP  
 PHP: Test and Code Coverage Analysis
downloads | QA | documentation | faq | getting help | mailing lists | reporting bugs | php.net sites | links | my php.net 
 

LTP GCOV extension - code coverage report
Current view: directory - standard - md5.c
Test: PHP Code Coverage
Date: 2009-11-21 Instrumented lines: 189
Code covered: 98.9 % Executed lines: 187
Legend: not executed executed

       1                 : /*
       2                 :    +----------------------------------------------------------------------+
       3                 :    | PHP Version 5                                                        |
       4                 :    +----------------------------------------------------------------------+
       5                 :    | Copyright (c) 1997-2009 The PHP Group                                |
       6                 :    +----------------------------------------------------------------------+
       7                 :    | This source file is subject to version 3.01 of the PHP license,      |
       8                 :    | that is bundled with this package in the file LICENSE, and is        |
       9                 :    | available through the world-wide-web at the following url:           |
      10                 :    | http://www.php.net/license/3_01.txt                                  |
      11                 :    | If you did not receive a copy of the PHP license and are unable to   |
      12                 :    | obtain it through the world-wide-web, please send a note to          |
      13                 :    | license@php.net so we can mail you a copy immediately.               |
      14                 :    +----------------------------------------------------------------------+
      15                 :    | Author: Alexander Peslyak (Solar Designer) <solar at openwall.com>   |
      16                 :    |         Lachlan Roche                                                |
      17                 :    |         Alessandro Astarita <aleast@capri.it>                        |
      18                 :    +----------------------------------------------------------------------+
      19                 : */
      20                 : 
      21                 : /* $Id: md5.c 272370 2008-12-31 11:15:49Z sebastian $ */
      22                 : 
      23                 : #include "php.h"
      24                 : #include "md5.h"
      25                 : 
      26                 : PHPAPI void make_digest(char *md5str, const unsigned char *digest) /* {{{ */
      27               7 : {
      28               7 :         make_digest_ex(md5str, digest, 16);
      29               7 : }
      30                 : /* }}} */
      31                 : 
      32                 : PHPAPI void make_digest_ex(char *md5str, const unsigned char *digest, int len) /* {{{ */
      33          300585 : {
      34                 :         static const char hexits[17] = "0123456789abcdef";
      35                 :         int i;
      36                 : 
      37         5110189 :         for (i = 0; i < len; i++) {
      38         4809604 :                 md5str[i * 2]       = hexits[digest[i] >> 4];
      39         4809604 :                 md5str[(i * 2) + 1] = hexits[digest[i] &  0x0F];
      40                 :         }
      41          300585 :         md5str[len * 2] = '\0';
      42          300585 : }
      43                 : /* }}} */
      44                 : 
      45                 : /* {{{ proto string md5(string str, [ bool raw_output])
      46                 :    Calculate the md5 hash of a string */
      47                 : PHP_NAMED_FUNCTION(php_if_md5)
      48          300498 : {
      49                 :         char *arg;
      50                 :         int arg_len;
      51          300498 :         zend_bool raw_output = 0;
      52                 :         char md5str[33];
      53                 :         PHP_MD5_CTX context;
      54                 :         unsigned char digest[16];
      55                 :         
      56          300498 :         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|b", &arg, &arg_len, &raw_output) == FAILURE) {
      57               2 :                 return;
      58                 :         }
      59                 :         
      60          300496 :         md5str[0] = '\0';
      61          300496 :         PHP_MD5Init(&context);
      62          300496 :         PHP_MD5Update(&context, arg, arg_len);
      63          300496 :         PHP_MD5Final(digest, &context);
      64          300496 :         if (raw_output) {
      65               8 :                 RETURN_STRINGL(digest, 16, 1);
      66                 :         } else {
      67          300488 :                 make_digest_ex(md5str, digest, 16);
      68          300488 :                 RETVAL_STRING(md5str, 1);
      69                 :         }
      70                 : 
      71                 : }
      72                 : /* }}} */
      73                 : 
      74                 : /* {{{ proto string md5_file(string filename [, bool raw_output])
      75                 :    Calculate the md5 hash of given filename */
      76                 : PHP_NAMED_FUNCTION(php_if_md5_file)
      77              36 : {
      78                 :         char          *arg;
      79                 :         int           arg_len;
      80              36 :         zend_bool raw_output = 0;
      81                 :         char          md5str[33];
      82                 :         unsigned char buf[1024];
      83                 :         unsigned char digest[16];
      84                 :         PHP_MD5_CTX   context;
      85                 :         int           n;
      86                 :         php_stream    *stream;
      87                 : 
      88              36 :         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|b", &arg, &arg_len, &raw_output) == FAILURE) {
      89               2 :                 return;
      90                 :         }
      91                 :         
      92              34 :         stream = php_stream_open_wrapper(arg, "rb", REPORT_ERRORS | ENFORCE_SAFE_MODE, NULL);
      93              34 :         if (!stream) {
      94               4 :                 RETURN_FALSE;
      95                 :         }
      96                 : 
      97              30 :         PHP_MD5Init(&context);
      98                 : 
      99           69437 :         while ((n = php_stream_read(stream, buf, sizeof(buf))) > 0) {
     100           69377 :                 PHP_MD5Update(&context, buf, n);
     101                 :         }
     102                 : 
     103              30 :         PHP_MD5Final(digest, &context);
     104                 : 
     105              30 :         php_stream_close(stream);
     106                 : 
     107              30 :         if (n<0) {
     108               0 :                 RETURN_FALSE;
     109                 :         }
     110                 : 
     111              30 :         if (raw_output) {
     112               2 :                 RETURN_STRINGL(digest, 16, 1);
     113                 :         } else {
     114              28 :                 make_digest_ex(md5str, digest, 16);
     115              28 :                 RETVAL_STRING(md5str, 1);
     116                 :         }
     117                 : }
     118                 : /* }}} */
     119                 : 
     120                 : /*
     121                 :  * This is an OpenSSL-compatible implementation of the RSA Data Security,
     122                 :  * Inc. MD5 Message-Digest Algorithm (RFC 1321).
     123                 :  *
     124                 :  * Written by Solar Designer <solar at openwall.com> in 2001, and placed
     125                 :  * in the public domain.  There's absolutely no warranty.
     126                 :  *
     127                 :  * This differs from Colin Plumb's older public domain implementation in
     128                 :  * that no 32-bit integer data type is required, there's no compile-time
     129                 :  * endianness configuration, and the function prototypes match OpenSSL's.
     130                 :  * The primary goals are portability and ease of use.
     131                 :  *
     132                 :  * This implementation is meant to be fast, but not as fast as possible.
     133                 :  * Some known optimizations are not included to reduce source code size
     134                 :  * and avoid compile-time configuration.
     135                 :  */
     136                 : 
     137                 : #include <string.h>
     138                 : 
     139                 : /*
     140                 :  * The basic MD5 functions.
     141                 :  *
     142                 :  * F and G are optimized compared to their RFC 1321 definitions for
     143                 :  * architectures that lack an AND-NOT instruction, just like in Colin Plumb's
     144                 :  * implementation.
     145                 :  */
     146                 : #define F(x, y, z)                      ((z) ^ ((x) & ((y) ^ (z))))
     147                 : #define G(x, y, z)                      ((y) ^ ((z) & ((x) ^ (y))))
     148                 : #define H(x, y, z)                      ((x) ^ (y) ^ (z))
     149                 : #define I(x, y, z)                      ((y) ^ ((x) | ~(z)))
     150                 : 
     151                 : /*
     152                 :  * The MD5 transformation for all four rounds.
     153                 :  */
     154                 : #define STEP(f, a, b, c, d, x, t, s) \
     155                 :         (a) += f((b), (c), (d)) + (x) + (t); \
     156                 :         (a) = (((a) << (s)) | (((a) & 0xffffffff) >> (32 - (s)))); \
     157                 :         (a) += (b);
     158                 : 
     159                 : /*
     160                 :  * SET reads 4 input bytes in little-endian byte order and stores them
     161                 :  * in a properly aligned word in host byte order.
     162                 :  *
     163                 :  * The check for little-endian architectures that tolerate unaligned
     164                 :  * memory accesses is just an optimization.  Nothing will break if it
     165                 :  * doesn't work.
     166                 :  */
     167                 : #if defined(__i386__) || defined(__x86_64__) || defined(__vax__)
     168                 : # define SET(n) \
     169                 :         (*(php_uint32 *)&ptr[(n) * 4])
     170                 : # define GET(n) \
     171                 :         SET(n)
     172                 : #else
     173                 : # define SET(n) \
     174                 :         (ctx->block[(n)] = \
     175                 :         (php_uint32)ptr[(n) * 4] | \
     176                 :         ((php_uint32)ptr[(n) * 4 + 1] << 8) | \
     177                 :         ((php_uint32)ptr[(n) * 4 + 2] << 16) | \
     178                 :         ((php_uint32)ptr[(n) * 4 + 3] << 24))
     179                 : # define GET(n) \
     180                 :         (ctx->block[(n)])
     181                 : #endif
     182                 : 
     183                 : /*
     184                 :  * This processes one or more 64-byte data blocks, but does NOT update
     185                 :  * the bit counters.  There are no alignment requirements.
     186                 :  */
     187                 : static const void *body(PHP_MD5_CTX *ctx, const void *data, size_t size)
     188          373693 : {
     189                 :         const unsigned char *ptr;
     190                 :         php_uint32 a, b, c, d;
     191                 :         php_uint32 saved_a, saved_b, saved_c, saved_d;
     192                 : 
     193          373693 :         ptr = data;
     194                 : 
     195          373693 :         a = ctx->a;
     196          373693 :         b = ctx->b;
     197          373693 :         c = ctx->c;
     198          373693 :         d = ctx->d;
     199                 : 
     200                 :         do {
     201         1436577 :                 saved_a = a;
     202         1436577 :                 saved_b = b;
     203         1436577 :                 saved_c = c;
     204         1436577 :                 saved_d = d;
     205                 : 
     206                 : /* Round 1 */
     207         1436577 :                 STEP(F, a, b, c, d, SET(0), 0xd76aa478, 7)
     208         1436577 :                 STEP(F, d, a, b, c, SET(1), 0xe8c7b756, 12)
     209         1436577 :                 STEP(F, c, d, a, b, SET(2), 0x242070db, 17)
     210         1436577 :                 STEP(F, b, c, d, a, SET(3), 0xc1bdceee, 22)
     211         1436577 :                 STEP(F, a, b, c, d, SET(4), 0xf57c0faf, 7)
     212         1436577 :                 STEP(F, d, a, b, c, SET(5), 0x4787c62a, 12)
     213         1436577 :                 STEP(F, c, d, a, b, SET(6), 0xa8304613, 17)
     214         1436577 :                 STEP(F, b, c, d, a, SET(7), 0xfd469501, 22)
     215         1436577 :                 STEP(F, a, b, c, d, SET(8), 0x698098d8, 7)
     216         1436577 :                 STEP(F, d, a, b, c, SET(9), 0x8b44f7af, 12)
     217         1436577 :                 STEP(F, c, d, a, b, SET(10), 0xffff5bb1, 17)
     218         1436577 :                 STEP(F, b, c, d, a, SET(11), 0x895cd7be, 22)
     219         1436577 :                 STEP(F, a, b, c, d, SET(12), 0x6b901122, 7)
     220         1436577 :                 STEP(F, d, a, b, c, SET(13), 0xfd987193, 12)
     221         1436577 :                 STEP(F, c, d, a, b, SET(14), 0xa679438e, 17)
     222         1436577 :                 STEP(F, b, c, d, a, SET(15), 0x49b40821, 22)
     223                 : 
     224                 : /* Round 2 */
     225         1436577 :                 STEP(G, a, b, c, d, GET(1), 0xf61e2562, 5)
     226         1436577 :                 STEP(G, d, a, b, c, GET(6), 0xc040b340, 9)
     227         1436577 :                 STEP(G, c, d, a, b, GET(11), 0x265e5a51, 14)
     228         1436577 :                 STEP(G, b, c, d, a, GET(0), 0xe9b6c7aa, 20)
     229         1436577 :                 STEP(G, a, b, c, d, GET(5), 0xd62f105d, 5)
     230         1436577 :                 STEP(G, d, a, b, c, GET(10), 0x02441453, 9)
     231         1436577 :                 STEP(G, c, d, a, b, GET(15), 0xd8a1e681, 14)
     232         1436577 :                 STEP(G, b, c, d, a, GET(4), 0xe7d3fbc8, 20)
     233         1436577 :                 STEP(G, a, b, c, d, GET(9), 0x21e1cde6, 5)
     234         1436577 :                 STEP(G, d, a, b, c, GET(14), 0xc33707d6, 9)
     235         1436577 :                 STEP(G, c, d, a, b, GET(3), 0xf4d50d87, 14)
     236         1436577 :                 STEP(G, b, c, d, a, GET(8), 0x455a14ed, 20)
     237         1436577 :                 STEP(G, a, b, c, d, GET(13), 0xa9e3e905, 5)
     238         1436577 :                 STEP(G, d, a, b, c, GET(2), 0xfcefa3f8, 9)
     239         1436577 :                 STEP(G, c, d, a, b, GET(7), 0x676f02d9, 14)
     240         1436577 :                 STEP(G, b, c, d, a, GET(12), 0x8d2a4c8a, 20)
     241                 : 
     242                 : /* Round 3 */
     243         1436577 :                 STEP(H, a, b, c, d, GET(5), 0xfffa3942, 4)
     244         1436577 :                 STEP(H, d, a, b, c, GET(8), 0x8771f681, 11)
     245         1436577 :                 STEP(H, c, d, a, b, GET(11), 0x6d9d6122, 16)
     246         1436577 :                 STEP(H, b, c, d, a, GET(14), 0xfde5380c, 23)
     247         1436577 :                 STEP(H, a, b, c, d, GET(1), 0xa4beea44, 4)
     248         1436577 :                 STEP(H, d, a, b, c, GET(4), 0x4bdecfa9, 11)
     249         1436577 :                 STEP(H, c, d, a, b, GET(7), 0xf6bb4b60, 16)
     250         1436577 :                 STEP(H, b, c, d, a, GET(10), 0xbebfbc70, 23)
     251         1436577 :                 STEP(H, a, b, c, d, GET(13), 0x289b7ec6, 4)
     252         1436577 :                 STEP(H, d, a, b, c, GET(0), 0xeaa127fa, 11)
     253         1436577 :                 STEP(H, c, d, a, b, GET(3), 0xd4ef3085, 16)
     254         1436577 :                 STEP(H, b, c, d, a, GET(6), 0x04881d05, 23)
     255         1436577 :                 STEP(H, a, b, c, d, GET(9), 0xd9d4d039, 4)
     256         1436577 :                 STEP(H, d, a, b, c, GET(12), 0xe6db99e5, 11)
     257         1436577 :                 STEP(H, c, d, a, b, GET(15), 0x1fa27cf8, 16)
     258         1436577 :                 STEP(H, b, c, d, a, GET(2), 0xc4ac5665, 23)
     259                 : 
     260                 : /* Round 4 */
     261         1436577 :                 STEP(I, a, b, c, d, GET(0), 0xf4292244, 6)
     262         1436577 :                 STEP(I, d, a, b, c, GET(7), 0x432aff97, 10)
     263         1436577 :                 STEP(I, c, d, a, b, GET(14), 0xab9423a7, 15)
     264         1436577 :                 STEP(I, b, c, d, a, GET(5), 0xfc93a039, 21)
     265         1436577 :                 STEP(I, a, b, c, d, GET(12), 0x655b59c3, 6)
     266         1436577 :                 STEP(I, d, a, b, c, GET(3), 0x8f0ccc92, 10)
     267         1436577 :                 STEP(I, c, d, a, b, GET(10), 0xffeff47d, 15)
     268         1436577 :                 STEP(I, b, c, d, a, GET(1), 0x85845dd1, 21)
     269         1436577 :                 STEP(I, a, b, c, d, GET(8), 0x6fa87e4f, 6)
     270         1436577 :                 STEP(I, d, a, b, c, GET(15), 0xfe2ce6e0, 10)
     271         1436577 :                 STEP(I, c, d, a, b, GET(6), 0xa3014314, 15)
     272         1436577 :                 STEP(I, b, c, d, a, GET(13), 0x4e0811a1, 21)
     273         1436577 :                 STEP(I, a, b, c, d, GET(4), 0xf7537e82, 6)
     274         1436577 :                 STEP(I, d, a, b, c, GET(11), 0xbd3af235, 10)
     275         1436577 :                 STEP(I, c, d, a, b, GET(2), 0x2ad7d2bb, 15)
     276         1436577 :                 STEP(I, b, c, d, a, GET(9), 0xeb86d391, 21)
     277                 : 
     278         1436577 :                 a += saved_a;
     279         1436577 :                 b += saved_b;
     280         1436577 :                 c += saved_c;
     281         1436577 :                 d += saved_d;
     282                 : 
     283         1436577 :                 ptr += 64;
     284         1436577 :         } while (size -= 64);
     285                 : 
     286          373693 :         ctx->a = a;
     287          373693 :         ctx->b = b;
     288          373693 :         ctx->c = c;
     289          373693 :         ctx->d = d;
     290                 : 
     291          373693 :         return ptr;
     292                 : }
     293                 : 
     294                 : PHPAPI void PHP_MD5Init(PHP_MD5_CTX *ctx)
     295          303818 : {
     296          303818 :         ctx->a = 0x67452301;
     297          303818 :         ctx->b = 0xefcdab89;
     298          303818 :         ctx->c = 0x98badcfe;
     299          303818 :         ctx->d = 0x10325476;
     300                 : 
     301          303818 :         ctx->lo = 0;
     302          303818 :         ctx->hi = 0;
     303          303818 : }
     304                 : 
     305                 : PHPAPI void PHP_MD5Update(PHP_MD5_CTX *ctx, const void *data, size_t size)
     306          380806 : {
     307                 :         php_uint32 saved_lo;
     308                 :         php_uint32 used, free;
     309                 : 
     310          380806 :         saved_lo = ctx->lo;
     311          380806 :         if ((ctx->lo = (saved_lo + size) & 0x1fffffff) < saved_lo) {
     312               0 :                 ctx->hi++;
     313                 :         }
     314          380806 :         ctx->hi += size >> 29;
     315                 : 
     316          380806 :         used = saved_lo & 0x3f;
     317                 : 
     318          380806 :         if (used) {
     319            7625 :                 free = 64 - used;
     320                 : 
     321            7625 :                 if (size < free) {
     322            7618 :                         memcpy(&ctx->buffer[used], data, size);
     323            7618 :                         return;
     324                 :                 }
     325                 : 
     326               7 :                 memcpy(&ctx->buffer[used], data, free);
     327               7 :                 data = (unsigned char *)data + free;
     328               7 :                 size -= free;
     329               7 :                 body(ctx, ctx->buffer, 64);
     330                 :         }
     331                 : 
     332          373188 :         if (size >= 64) {
     333           69799 :                 data = body(ctx, data, size & ~(size_t)0x3f);
     334           69799 :                 size &= 0x3f;
     335                 :         }
     336                 : 
     337          373188 :         memcpy(ctx->buffer, data, size);
     338                 : }
     339                 : 
     340                 : PHPAPI void PHP_MD5Final(unsigned char *result, PHP_MD5_CTX *ctx)
     341          303817 : {
     342                 :         php_uint32 used, free;
     343                 : 
     344          303817 :         used = ctx->lo & 0x3f;
     345                 : 
     346          303817 :         ctx->buffer[used++] = 0x80;
     347                 : 
     348          303817 :         free = 64 - used;
     349                 : 
     350          303817 :         if (free < 8) {
     351              70 :                 memset(&ctx->buffer[used], 0, free);
     352              70 :                 body(ctx, ctx->buffer, 64);
     353              70 :                 used = 0;
     354              70 :                 free = 64;
     355                 :         }
     356                 : 
     357          303817 :         memset(&ctx->buffer[used], 0, free - 8);
     358                 : 
     359          303817 :         ctx->lo <<= 3;
     360          303817 :         ctx->buffer[56] = ctx->lo;
     361          303817 :         ctx->buffer[57] = ctx->lo >> 8;
     362          303817 :         ctx->buffer[58] = ctx->lo >> 16;
     363          303817 :         ctx->buffer[59] = ctx->lo >> 24;
     364          303817 :         ctx->buffer[60] = ctx->hi;
     365          303817 :         ctx->buffer[61] = ctx->hi >> 8;
     366          303817 :         ctx->buffer[62] = ctx->hi >> 16;
     367          303817 :         ctx->buffer[63] = ctx->hi >> 24;
     368                 : 
     369          303817 :         body(ctx, ctx->buffer, 64);
     370                 : 
     371          303817 :         result[0] = ctx->a;
     372          303817 :         result[1] = ctx->a >> 8;
     373          303817 :         result[2] = ctx->a >> 16;
     374          303817 :         result[3] = ctx->a >> 24;
     375          303817 :         result[4] = ctx->b;
     376          303817 :         result[5] = ctx->b >> 8;
     377          303817 :         result[6] = ctx->b >> 16;
     378          303817 :         result[7] = ctx->b >> 24;
     379          303817 :         result[8] = ctx->c;
     380          303817 :         result[9] = ctx->c >> 8;
     381          303817 :         result[10] = ctx->c >> 16;
     382          303817 :         result[11] = ctx->c >> 24;
     383          303817 :         result[12] = ctx->d;
     384          303817 :         result[13] = ctx->d >> 8;
     385          303817 :         result[14] = ctx->d >> 16;
     386          303817 :         result[15] = ctx->d >> 24;
     387                 : 
     388          303817 :         memset(ctx, 0, sizeof(*ctx));
     389          303817 : }

Generated by: LTP GCOV extension version 1.5

Generated at Sat, 21 Nov 2009 12:27:12 +0000 (3 days ago)

Copyright © 2005-2009 The PHP Group
All rights reserved.