自走棋_example.rar

/* * Functions to compute MD5 message digest of files or memory blocks * according to the definition of MD5 in RFC 1321 from April 1992. * Copyright (C) 1995, 1996 Free Software Foundation, Inc. NOTE: The * canonical source of this file is maintained with the GNU C Library. * Bugs can be reported to bug-glibc@prep.ai.mit.edu. * * 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. * * Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. * Modified by Gray Watson <http://256.com/gray/>, 1997. * * $Id: md5.c,v 1.1.1.1 2004/05/17 13:23:36 rcrittenden0569 Exp $ */ /* * NOTE: during quick performance tests on a Sun Sparc Ultra 1 and an * Alpha 255 300, these functions performed upwards of 3mb/sec * including disk I/O time. */ /* * MD5 Test Suite from RFC1321: http://ds.internic.net:/rfc/rfc1321.txt * * MD5 ("") = d41d8cd98f00b204e9800998ecf8427e * MD5 ("a") = 0cc175b9c0f1b6a831c399e269772661 * MD5 ("abc") = 900150983cd24fb0d6963f7d28e17f72 * MD5 ("message digest") = f96b697d7cb7938d525a2f31aaf161d0 * MD5 ("abcdefghijklmnopqrstuvwxyz") = c3fcd3d76192e4007dfb496cca67e13b * MD5 ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789") = * d174ab98d277d9f5a5611c2c9f419d9f * MD5 ("123456789012345678901234567890123456789012345678901234567890123456 * 78901234567890") = 57edf4a22be3c955ac49da2e2107b67a */ #include <stdlib.h> #include <string.h> #include <sys/types.h> #include "md5.h" #include "md5_loc.h" #if 0 static char *rcs_id = "$Id: md5.c,v 1.1.1.1 2004/05/17 13:23:36 rcrittenden0569 Exp $"; /* version id for the library */ static char *version_id = "$MD5Version: 1.0.0 November-19-1997 $"; #endif /****************************** local routines *******************************/ /* * process_block * * DESCRIPTION: * * Process a block of bytes into a MD5 state structure. * * RETURNS: * * None. * * ARGUMENTS: * * md5_p - Pointer to MD5 structure from which we are getting the result. * * buffer - A buffer of bytes whose MD5 signature we are calculating. * * buf_len - The length of the buffer. */ static void process_block(md5_t *md5_p, const void *buffer, const unsigned int buf_len) { md5_uint32 correct[16]; const void *buf_p = buffer, *end_p; unsigned int words_n; md5_uint32 A, B, C, D; words_n = buf_len / sizeof(md5_uint32); end_p = (char *)buf_p + words_n * sizeof(md5_uint32); A = md5_p->md_A; B = md5_p->md_B; C = md5_p->md_C; D = md5_p->md_D; /* * First increment the byte count. RFC 1321 specifies the possible * length of the file up to 2^64 bits. Here we only compute the * number of bytes with a double word increment. Modified to do * this to better avoid overflows in the lower word -- Gray 10/97. */ if (md5_p->md_total[0] > MAX_MD5_UINT32 - buf_len) { md5_p->md_total[1]++; md5_p->md_total[0] -= (MAX_MD5_UINT32 - buf_len); } else { md5_p->md_total[0] += buf_len; } /* * Process all bytes in the buffer with MD5_BLOCK bytes in each * round of the loop. */ while (buf_p < end_p) { md5_uint32 A_save, B_save, C_save, D_save; md5_uint32 *corr_p = correct; A_save = A; B_save = B; C_save = C; D_save = D; /* * Before we start, one word to the strange constants. They are * defined in RFC 1321 as * * T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..MD5_BLOCK */ /* Round 1. */ OP1 (A, B, C, D, buf_p, corr_p, 7, 0xd76aa478); OP1 (D, A, B, C, buf_p, corr_p, 12, 0xe8c7b756); OP1 (C, D, A, B, buf_p, corr_p, 17, 0x242070db); OP1 (B, C, D, A, buf_p, corr_p, 22, 0xc1bdceee); OP1 (A, B, C, D, buf_p, corr_p, 7, 0xf57c0faf); OP1 (D, A, B, C, buf_p, corr_p, 12, 0x4787c62a); OP1 (C, D, A, B, buf_p, corr_p, 17, 0xa8304613); OP1 (B, C, D, A, buf_p, corr_p, 22, 0xfd469501); OP1 (A, B, C, D, buf_p, corr_p, 7, 0x698098d8); OP1 (D, A, B, C, buf_p, corr_p, 12, 0x8b44f7af); OP1 (C, D, A, B, buf_p, corr_p, 17, 0xffff5bb1); OP1 (B, C, D, A, buf_p, corr_p, 22, 0x895cd7be); OP1 (A, B, C, D, buf_p, corr_p, 7, 0x6b901122); OP1 (D, A, B, C, buf_p, corr_p, 12, 0xfd987193); OP1 (C, D, A, B, buf_p, corr_p, 17, 0xa679438e); OP1 (B, C, D, A, buf_p, corr_p, 22, 0x49b40821); /* Round 2. */ OP234 (FG, A, B, C, D, correct[ 1], 5, 0xf61e2562); OP234 (FG, D, A, B, C, correct[ 6], 9, 0xc040b340); OP234 (FG, C, D, A, B, correct[ 11], 14, 0x265e5a51); OP234 (FG, B, C, D, A, correct[ 0], 20, 0xe9b6c7aa); OP234 (FG, A, B, C, D, correct[ 5], 5, 0xd62f105d); OP234 (FG, D, A, B, C, correct[ 10], 9, 0x02441453); OP234 (FG, C, D, A, B, correct[ 15], 14, 0xd8a1e681); OP234 (FG, B, C, D, A, correct[ 4], 20, 0xe7d3fbc8); OP234 (FG, A, B, C, D, correct[ 9], 5, 0x21e1cde6); OP234 (FG, D, A, B, C, correct[ 14], 9, 0xc33707d6); OP234 (FG, C, D, A, B, correct[ 3], 14, 0xf4d50d87); OP234 (FG, B, C, D, A, correct[ 8], 20, 0x455a14ed); OP234 (FG, A, B, C, D, correct[ 13], 5, 0xa9e3e905); OP234 (FG, D, A, B, C, correct[ 2], 9, 0xfcefa3f8); OP234 (FG, C, D, A, B, correct[ 7], 14, 0x676f02d9); OP234 (FG, B, C, D, A, correct[ 12], 20, 0x8d2a4c8a); /* Round 3. */ OP234 (FH, A, B, C, D, correct[ 5], 4, 0xfffa3942); OP234 (FH, D, A, B, C, correct[ 8], 11, 0x8771f681); OP234 (FH, C, D, A, B, correct[ 11], 16, 0x6d9d6122); OP234 (FH, B, C, D, A, correct[ 14], 23, 0xfde5380c); OP234 (FH, A, B, C, D, correct[ 1], 4, 0xa4beea44); OP234 (FH, D, A, B, C, correct[ 4], 11, 0x4bdecfa9); OP234 (FH, C, D, A, B, correct[ 7], 16, 0xf6bb4b60); OP234 (FH, B, C, D, A, correct[ 10], 23, 0xbebfbc70); OP234 (FH, A, B, C, D, correct[ 13], 4, 0x289b7ec6); OP234 (FH, D, A, B, C, correct[ 0], 11, 0xeaa127fa); OP234 (FH, C, D, A, B, correct[ 3], 16, 0xd4ef3085); OP234 (FH, B, C, D, A, correct[ 6], 23, 0x04881d05); OP234 (FH, A, B, C, D, correct[ 9], 4, 0xd9d4d039); OP234 (FH, D, A, B, C, correct[ 12], 11, 0xe6db99e5); OP234 (FH, C, D, A, B, correct[ 15], 16, 0x1fa27cf8); OP234 (FH, B, C, D, A, correct[ 2], 23, 0xc4ac5665); /* Round 4. */ OP234 (FI, A, B, C, D, correct[ 0], 6, 0xf4292244); OP234 (FI, D, A, B, C, correct[ 7], 10, 0x432aff97); OP234 (FI, C, D, A, B, correct[ 14], 15, 0xab9423a7); OP234 (FI, B, C, D, A, correct[ 5], 21, 0xfc93a039); OP234 (FI, A, B, C, D, correct[ 12], 6, 0x655b59c3); OP234 (FI, D, A, B, C, correct[ 3], 10, 0x8f0ccc92); OP234 (FI, C, D, A, B, correct[ 10], 15, 0xffeff47d); OP234 (FI, B, C, D, A, correct[ 1], 21, 0x85845dd1); OP234 (FI, A, B, C, D, correct[ 8], 6, 0x6fa87e4f); OP234 (FI, D, A, B, C, correct[ 15], 10, 0xfe2ce6e0); OP234 (FI, C, D, A, B, correct[ 6], 15, 0xa3014314); OP234 (FI, B, C, D, A, correct[ 13], 21, 0x4e0811a1); OP234 (FI, A, B, C, D, correct[ 4], 6, 0xf7537e82); OP234 (FI, D, A, B, C, correct[ 11], 10, 0xbd3af235); OP234 (FI, C, D, A, B, correct[ 2], 15, 0x2ad7d2bb); OP234 (FI, B, C, D, A, correct[ 9], 21, 0xeb86d391); /* Add the starting v