-/*\r
- Copyright (C) 1999, 2000, 2002 Aladdin Enterprises. All rights reserved.\r
-\r
- This software is provided 'as-is', without any express or implied\r
- warranty. In no event will the authors be held liable for any damages\r
- arising from the use of this software.\r
-\r
- Permission is granted to anyone to use this software for any purpose,\r
- including commercial applications, and to alter it and redistribute it\r
- freely, subject to the following restrictions:\r
-\r
- 1. The origin of this software must not be misrepresented; you must not\r
- claim that you wrote the original software. If you use this software\r
- in a product, an acknowledgment in the product documentation would be\r
- appreciated but is not required.\r
- 2. Altered source versions must be plainly marked as such, and must not be\r
- misrepresented as being the original software.\r
- 3. This notice may not be removed or altered from any source distribution.\r
-\r
- L. Peter Deutsch\r
- ghost@aladdin.com\r
-\r
- */\r
-/* $Id: md5lib.c,v 1.1 2003/07/18 04:24:39 ydnar Exp $ */\r
-/*\r
- Independent implementation of MD5 (RFC 1321).\r
-\r
- This code implements the MD5 Algorithm defined in RFC 1321, whose\r
- text is available at\r
- http://www.ietf.org/rfc/rfc1321.txt\r
- The code is derived from the text of the RFC, including the test suite\r
- (section A.5) but excluding the rest of Appendix A. It does not include\r
- any code or documentation that is identified in the RFC as being\r
- copyrighted.\r
-\r
- The original and principal author of md5.c is L. Peter Deutsch\r
- <ghost@aladdin.com>. Other authors are noted in the change history\r
- that follows (in reverse chronological order):\r
- \r
- 2003-07-17 ydnar added to gtkradiant project from\r
- http://sourceforge.net/projects/libmd5-rfc/\r
- 2002-04-13 lpd Clarified derivation from RFC 1321; now handles byte order\r
- either statically or dynamically; added missing #include <string.h>\r
- in library.\r
- 2002-03-11 lpd Corrected argument list for main(), and added int return\r
- type, in test program and T value program.\r
- 2002-02-21 lpd Added missing #include <stdio.h> in test program.\r
- 2000-07-03 lpd Patched to eliminate warnings about "constant is\r
- unsigned in ANSI C, signed in traditional"; made test program\r
- self-checking.\r
- 1999-11-04 lpd Edited comments slightly for automatic TOC extraction.\r
- 1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5).\r
- 1999-05-03 lpd Original version.\r
- */\r
-\r
-#include "md5lib.h" /* ydnar */\r
-#include <string.h>\r
-\r
-/* ydnar: gtkradiant endian picking */\r
-#ifdef _SGI_SOURCE\r
-#define __BIG_ENDIAN__\r
-#endif\r
-\r
-#ifdef __BIG_ENDIAN__\r
-#define ARCH_IS_BIG_ENDIAN 1\r
-#else\r
-#define ARCH_IS_BIG_ENDIAN 0\r
-#endif\r
-/* ydnar: end */\r
-\r
-#undef BYTE_ORDER /* 1 = big-endian, -1 = little-endian, 0 = unknown */\r
-#ifdef ARCH_IS_BIG_ENDIAN\r
-# define BYTE_ORDER (ARCH_IS_BIG_ENDIAN ? 1 : -1)\r
-#else\r
-# define BYTE_ORDER 0\r
-#endif\r
-\r
-#define T_MASK ((md5_word_t)~0)\r
-#define T1 /* 0xd76aa478 */ (T_MASK ^ 0x28955b87)\r
-#define T2 /* 0xe8c7b756 */ (T_MASK ^ 0x173848a9)\r
-#define T3 0x242070db\r
-#define T4 /* 0xc1bdceee */ (T_MASK ^ 0x3e423111)\r
-#define T5 /* 0xf57c0faf */ (T_MASK ^ 0x0a83f050)\r
-#define T6 0x4787c62a\r
-#define T7 /* 0xa8304613 */ (T_MASK ^ 0x57cfb9ec)\r
-#define T8 /* 0xfd469501 */ (T_MASK ^ 0x02b96afe)\r
-#define T9 0x698098d8\r
-#define T10 /* 0x8b44f7af */ (T_MASK ^ 0x74bb0850)\r
-#define T11 /* 0xffff5bb1 */ (T_MASK ^ 0x0000a44e)\r
-#define T12 /* 0x895cd7be */ (T_MASK ^ 0x76a32841)\r
-#define T13 0x6b901122\r
-#define T14 /* 0xfd987193 */ (T_MASK ^ 0x02678e6c)\r
-#define T15 /* 0xa679438e */ (T_MASK ^ 0x5986bc71)\r
-#define T16 0x49b40821\r
-#define T17 /* 0xf61e2562 */ (T_MASK ^ 0x09e1da9d)\r
-#define T18 /* 0xc040b340 */ (T_MASK ^ 0x3fbf4cbf)\r
-#define T19 0x265e5a51\r
-#define T20 /* 0xe9b6c7aa */ (T_MASK ^ 0x16493855)\r
-#define T21 /* 0xd62f105d */ (T_MASK ^ 0x29d0efa2)\r
-#define T22 0x02441453\r
-#define T23 /* 0xd8a1e681 */ (T_MASK ^ 0x275e197e)\r
-#define T24 /* 0xe7d3fbc8 */ (T_MASK ^ 0x182c0437)\r
-#define T25 0x21e1cde6\r
-#define T26 /* 0xc33707d6 */ (T_MASK ^ 0x3cc8f829)\r
-#define T27 /* 0xf4d50d87 */ (T_MASK ^ 0x0b2af278)\r
-#define T28 0x455a14ed\r
-#define T29 /* 0xa9e3e905 */ (T_MASK ^ 0x561c16fa)\r
-#define T30 /* 0xfcefa3f8 */ (T_MASK ^ 0x03105c07)\r
-#define T31 0x676f02d9\r
-#define T32 /* 0x8d2a4c8a */ (T_MASK ^ 0x72d5b375)\r
-#define T33 /* 0xfffa3942 */ (T_MASK ^ 0x0005c6bd)\r
-#define T34 /* 0x8771f681 */ (T_MASK ^ 0x788e097e)\r
-#define T35 0x6d9d6122\r
-#define T36 /* 0xfde5380c */ (T_MASK ^ 0x021ac7f3)\r
-#define T37 /* 0xa4beea44 */ (T_MASK ^ 0x5b4115bb)\r
-#define T38 0x4bdecfa9\r
-#define T39 /* 0xf6bb4b60 */ (T_MASK ^ 0x0944b49f)\r
-#define T40 /* 0xbebfbc70 */ (T_MASK ^ 0x4140438f)\r
-#define T41 0x289b7ec6\r
-#define T42 /* 0xeaa127fa */ (T_MASK ^ 0x155ed805)\r
-#define T43 /* 0xd4ef3085 */ (T_MASK ^ 0x2b10cf7a)\r
-#define T44 0x04881d05\r
-#define T45 /* 0xd9d4d039 */ (T_MASK ^ 0x262b2fc6)\r
-#define T46 /* 0xe6db99e5 */ (T_MASK ^ 0x1924661a)\r
-#define T47 0x1fa27cf8\r
-#define T48 /* 0xc4ac5665 */ (T_MASK ^ 0x3b53a99a)\r
-#define T49 /* 0xf4292244 */ (T_MASK ^ 0x0bd6ddbb)\r
-#define T50 0x432aff97\r
-#define T51 /* 0xab9423a7 */ (T_MASK ^ 0x546bdc58)\r
-#define T52 /* 0xfc93a039 */ (T_MASK ^ 0x036c5fc6)\r
-#define T53 0x655b59c3\r
-#define T54 /* 0x8f0ccc92 */ (T_MASK ^ 0x70f3336d)\r
-#define T55 /* 0xffeff47d */ (T_MASK ^ 0x00100b82)\r
-#define T56 /* 0x85845dd1 */ (T_MASK ^ 0x7a7ba22e)\r
-#define T57 0x6fa87e4f\r
-#define T58 /* 0xfe2ce6e0 */ (T_MASK ^ 0x01d3191f)\r
-#define T59 /* 0xa3014314 */ (T_MASK ^ 0x5cfebceb)\r
-#define T60 0x4e0811a1\r
-#define T61 /* 0xf7537e82 */ (T_MASK ^ 0x08ac817d)\r
-#define T62 /* 0xbd3af235 */ (T_MASK ^ 0x42c50dca)\r
-#define T63 0x2ad7d2bb\r
-#define T64 /* 0xeb86d391 */ (T_MASK ^ 0x14792c6e)\r
-\r
-\r
-static void\r
-md5_process(md5_state_t *pms, const md5_byte_t *data /*[64]*/)\r
-{\r
- md5_word_t\r
- a = pms->abcd[0], b = pms->abcd[1],\r
- c = pms->abcd[2], d = pms->abcd[3];\r
- md5_word_t t;\r
-#if BYTE_ORDER > 0\r
- /* Define storage only for big-endian CPUs. */\r
- md5_word_t X[16];\r
-#else\r
- /* Define storage for little-endian or both types of CPUs. */\r
- md5_word_t xbuf[16];\r
- const md5_word_t *X;\r
-#endif\r
-\r
- {\r
-#if BYTE_ORDER == 0\r
- /*\r
- * Determine dynamically whether this is a big-endian or\r
- * little-endian machine, since we can use a more efficient\r
- * algorithm on the latter.\r
- */\r
- static const int w = 1;\r
-\r
- if (*((const md5_byte_t *)&w)) /* dynamic little-endian */\r
-#endif\r
-#if BYTE_ORDER <= 0 /* little-endian */\r
- {\r
- /*\r
- * On little-endian machines, we can process properly aligned\r
- * data without copying it.\r
- */\r
- if (!((data - (const md5_byte_t *)0) & 3)) {\r
- /* data are properly aligned */\r
- X = (const md5_word_t *)data;\r
- } else {\r
- /* not aligned */\r
- memcpy(xbuf, data, 64);\r
- X = xbuf;\r
- }\r
- }\r
-#endif\r
-#if BYTE_ORDER == 0\r
- else /* dynamic big-endian */\r
-#endif\r
-#if BYTE_ORDER >= 0 /* big-endian */\r
- {\r
- /*\r
- * On big-endian machines, we must arrange the bytes in the\r
- * right order.\r
- */\r
- const md5_byte_t *xp = data;\r
- int i;\r
-\r
-# if BYTE_ORDER == 0\r
- X = xbuf; /* (dynamic only) */\r
-# else\r
-# define xbuf X /* (static only) */\r
-# endif\r
- for (i = 0; i < 16; ++i, xp += 4)\r
- xbuf[i] = xp[0] + (xp[1] << 8) + (xp[2] << 16) + (xp[3] << 24);\r
- }\r
-#endif\r
- }\r
-\r
-#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32 - (n))))\r
-\r
- /* Round 1. */\r
- /* Let [abcd k s i] denote the operation\r
- a = b + ((a + F(b,c,d) + X[k] + T[i]) <<< s). */\r
-#define F(x, y, z) (((x) & (y)) | (~(x) & (z)))\r
-#define SET(a, b, c, d, k, s, Ti)\\r
- t = a + F(b,c,d) + X[k] + Ti;\\r
- a = ROTATE_LEFT(t, s) + b\r
- /* Do the following 16 operations. */\r
- SET(a, b, c, d, 0, 7, T1);\r
- SET(d, a, b, c, 1, 12, T2);\r
- SET(c, d, a, b, 2, 17, T3);\r
- SET(b, c, d, a, 3, 22, T4);\r
- SET(a, b, c, d, 4, 7, T5);\r
- SET(d, a, b, c, 5, 12, T6);\r
- SET(c, d, a, b, 6, 17, T7);\r
- SET(b, c, d, a, 7, 22, T8);\r
- SET(a, b, c, d, 8, 7, T9);\r
- SET(d, a, b, c, 9, 12, T10);\r
- SET(c, d, a, b, 10, 17, T11);\r
- SET(b, c, d, a, 11, 22, T12);\r
- SET(a, b, c, d, 12, 7, T13);\r
- SET(d, a, b, c, 13, 12, T14);\r
- SET(c, d, a, b, 14, 17, T15);\r
- SET(b, c, d, a, 15, 22, T16);\r
-#undef SET\r
-\r
- /* Round 2. */\r
- /* Let [abcd k s i] denote the operation\r
- a = b + ((a + G(b,c,d) + X[k] + T[i]) <<< s). */\r
-#define G(x, y, z) (((x) & (z)) | ((y) & ~(z)))\r
-#define SET(a, b, c, d, k, s, Ti)\\r
- t = a + G(b,c,d) + X[k] + Ti;\\r
- a = ROTATE_LEFT(t, s) + b\r
- /* Do the following 16 operations. */\r
- SET(a, b, c, d, 1, 5, T17);\r
- SET(d, a, b, c, 6, 9, T18);\r
- SET(c, d, a, b, 11, 14, T19);\r
- SET(b, c, d, a, 0, 20, T20);\r
- SET(a, b, c, d, 5, 5, T21);\r
- SET(d, a, b, c, 10, 9, T22);\r
- SET(c, d, a, b, 15, 14, T23);\r
- SET(b, c, d, a, 4, 20, T24);\r
- SET(a, b, c, d, 9, 5, T25);\r
- SET(d, a, b, c, 14, 9, T26);\r
- SET(c, d, a, b, 3, 14, T27);\r
- SET(b, c, d, a, 8, 20, T28);\r
- SET(a, b, c, d, 13, 5, T29);\r
- SET(d, a, b, c, 2, 9, T30);\r
- SET(c, d, a, b, 7, 14, T31);\r
- SET(b, c, d, a, 12, 20, T32);\r
-#undef SET\r
-\r
- /* Round 3. */\r
- /* Let [abcd k s t] denote the operation\r
- a = b + ((a + H(b,c,d) + X[k] + T[i]) <<< s). */\r
-#define H(x, y, z) ((x) ^ (y) ^ (z))\r
-#define SET(a, b, c, d, k, s, Ti)\\r
- t = a + H(b,c,d) + X[k] + Ti;\\r
- a = ROTATE_LEFT(t, s) + b\r
- /* Do the following 16 operations. */\r
- SET(a, b, c, d, 5, 4, T33);\r
- SET(d, a, b, c, 8, 11, T34);\r
- SET(c, d, a, b, 11, 16, T35);\r
- SET(b, c, d, a, 14, 23, T36);\r
- SET(a, b, c, d, 1, 4, T37);\r
- SET(d, a, b, c, 4, 11, T38);\r
- SET(c, d, a, b, 7, 16, T39);\r
- SET(b, c, d, a, 10, 23, T40);\r
- SET(a, b, c, d, 13, 4, T41);\r
- SET(d, a, b, c, 0, 11, T42);\r
- SET(c, d, a, b, 3, 16, T43);\r
- SET(b, c, d, a, 6, 23, T44);\r
- SET(a, b, c, d, 9, 4, T45);\r
- SET(d, a, b, c, 12, 11, T46);\r
- SET(c, d, a, b, 15, 16, T47);\r
- SET(b, c, d, a, 2, 23, T48);\r
-#undef SET\r
-\r
- /* Round 4. */\r
- /* Let [abcd k s t] denote the operation\r
- a = b + ((a + I(b,c,d) + X[k] + T[i]) <<< s). */\r
-#define I(x, y, z) ((y) ^ ((x) | ~(z)))\r
-#define SET(a, b, c, d, k, s, Ti)\\r
- t = a + I(b,c,d) + X[k] + Ti;\\r
- a = ROTATE_LEFT(t, s) + b\r
- /* Do the following 16 operations. */\r
- SET(a, b, c, d, 0, 6, T49);\r
- SET(d, a, b, c, 7, 10, T50);\r
- SET(c, d, a, b, 14, 15, T51);\r
- SET(b, c, d, a, 5, 21, T52);\r
- SET(a, b, c, d, 12, 6, T53);\r
- SET(d, a, b, c, 3, 10, T54);\r
- SET(c, d, a, b, 10, 15, T55);\r
- SET(b, c, d, a, 1, 21, T56);\r
- SET(a, b, c, d, 8, 6, T57);\r
- SET(d, a, b, c, 15, 10, T58);\r
- SET(c, d, a, b, 6, 15, T59);\r
- SET(b, c, d, a, 13, 21, T60);\r
- SET(a, b, c, d, 4, 6, T61);\r
- SET(d, a, b, c, 11, 10, T62);\r
- SET(c, d, a, b, 2, 15, T63);\r
- SET(b, c, d, a, 9, 21, T64);\r
-#undef SET\r
-\r
- /* Then perform the following additions. (That is increment each\r
- of the four registers by the value it had before this block\r
- was started.) */\r
- pms->abcd[0] += a;\r
- pms->abcd[1] += b;\r
- pms->abcd[2] += c;\r
- pms->abcd[3] += d;\r
-}\r
-\r
-void\r
-md5_init(md5_state_t *pms)\r
-{\r
- pms->count[0] = pms->count[1] = 0;\r
- pms->abcd[0] = 0x67452301;\r
- pms->abcd[1] = /*0xefcdab89*/ T_MASK ^ 0x10325476;\r
- pms->abcd[2] = /*0x98badcfe*/ T_MASK ^ 0x67452301;\r
- pms->abcd[3] = 0x10325476;\r
-}\r
-\r
-void\r
-md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes)\r
-{\r
- const md5_byte_t *p = data;\r
- int left = nbytes;\r
- int offset = (pms->count[0] >> 3) & 63;\r
- md5_word_t nbits = (md5_word_t)(nbytes << 3);\r
-\r
- if (nbytes <= 0)\r
- return;\r
-\r
- /* Update the message length. */\r
- pms->count[1] += nbytes >> 29;\r
- pms->count[0] += nbits;\r
- if (pms->count[0] < nbits)\r
- pms->count[1]++;\r
-\r
- /* Process an initial partial block. */\r
- if (offset) {\r
- int copy = (offset + nbytes > 64 ? 64 - offset : nbytes);\r
-\r
- memcpy(pms->buf + offset, p, copy);\r
- if (offset + copy < 64)\r
- return;\r
- p += copy;\r
- left -= copy;\r
- md5_process(pms, pms->buf);\r
- }\r
-\r
- /* Process full blocks. */\r
- for (; left >= 64; p += 64, left -= 64)\r
- md5_process(pms, p);\r
-\r
- /* Process a final partial block. */\r
- if (left)\r
- memcpy(pms->buf, p, left);\r
-}\r
-\r
-void\r
-md5_finish(md5_state_t *pms, md5_byte_t digest[16])\r
-{\r
- static const md5_byte_t pad[64] = {\r
- 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\r
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\r
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\r
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0\r
- };\r
- md5_byte_t data[8];\r
- int i;\r
-\r
- /* Save the length before padding. */\r
- for (i = 0; i < 8; ++i)\r
- data[i] = (md5_byte_t)(pms->count[i >> 2] >> ((i & 3) << 3));\r
- /* Pad to 56 bytes mod 64. */\r
- md5_append(pms, pad, ((55 - (pms->count[0] >> 3)) & 63) + 1);\r
- /* Append the length. */\r
- md5_append(pms, data, 8);\r
- for (i = 0; i < 16; ++i)\r
- digest[i] = (md5_byte_t)(pms->abcd[i >> 2] >> ((i & 3) << 3));\r
-}\r
+/*
+ Copyright (C) 1999, 2000, 2002 Aladdin Enterprises. All rights reserved.
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+
+ L. Peter Deutsch
+ ghost@aladdin.com
+
+ */
+/* $Id: md5lib.c,v 1.1 2003/07/18 04:24:39 ydnar Exp $ */
+/*
+ Independent implementation of MD5 (RFC 1321).
+
+ This code implements the MD5 Algorithm defined in RFC 1321, whose
+ text is available at
+ http://www.ietf.org/rfc/rfc1321.txt
+ The code is derived from the text of the RFC, including the test suite
+ (section A.5) but excluding the rest of Appendix A. It does not include
+ any code or documentation that is identified in the RFC as being
+ copyrighted.
+
+ The original and principal author of md5.c is L. Peter Deutsch
+ <ghost@aladdin.com>. Other authors are noted in the change history
+ that follows (in reverse chronological order):
+
+ 2003-07-17 ydnar added to gtkradiant project from
+ http://sourceforge.net/projects/libmd5-rfc/
+ 2002-04-13 lpd Clarified derivation from RFC 1321; now handles byte order
+ either statically or dynamically; added missing #include <string.h>
+ in library.
+ 2002-03-11 lpd Corrected argument list for main(), and added int return
+ type, in test program and T value program.
+ 2002-02-21 lpd Added missing #include <stdio.h> in test program.
+ 2000-07-03 lpd Patched to eliminate warnings about "constant is
+ unsigned in ANSI C, signed in traditional"; made test program
+ self-checking.
+ 1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
+ 1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5).
+ 1999-05-03 lpd Original version.
+ */
+
+#include "md5lib.h" /* ydnar */
+#include <string.h>
+
+/* ydnar: gtkradiant endian picking */
+#ifdef _SGI_SOURCE
+#define __BIG_ENDIAN__
+#endif
+
+#ifdef __BIG_ENDIAN__
+#define ARCH_IS_BIG_ENDIAN 1
+#else
+#define ARCH_IS_BIG_ENDIAN 0
+#endif
+/* ydnar: end */
+
+#undef BYTE_ORDER /* 1 = big-endian, -1 = little-endian, 0 = unknown */
+#ifdef ARCH_IS_BIG_ENDIAN
+# define BYTE_ORDER (ARCH_IS_BIG_ENDIAN ? 1 : -1)
+#else
+# define BYTE_ORDER 0
+#endif
+
+#define T_MASK ((md5_word_t)~0)
+#define T1 /* 0xd76aa478 */ (T_MASK ^ 0x28955b87)
+#define T2 /* 0xe8c7b756 */ (T_MASK ^ 0x173848a9)
+#define T3 0x242070db
+#define T4 /* 0xc1bdceee */ (T_MASK ^ 0x3e423111)
+#define T5 /* 0xf57c0faf */ (T_MASK ^ 0x0a83f050)
+#define T6 0x4787c62a
+#define T7 /* 0xa8304613 */ (T_MASK ^ 0x57cfb9ec)
+#define T8 /* 0xfd469501 */ (T_MASK ^ 0x02b96afe)
+#define T9 0x698098d8
+#define T10 /* 0x8b44f7af */ (T_MASK ^ 0x74bb0850)
+#define T11 /* 0xffff5bb1 */ (T_MASK ^ 0x0000a44e)
+#define T12 /* 0x895cd7be */ (T_MASK ^ 0x76a32841)
+#define T13 0x6b901122
+#define T14 /* 0xfd987193 */ (T_MASK ^ 0x02678e6c)
+#define T15 /* 0xa679438e */ (T_MASK ^ 0x5986bc71)
+#define T16 0x49b40821
+#define T17 /* 0xf61e2562 */ (T_MASK ^ 0x09e1da9d)
+#define T18 /* 0xc040b340 */ (T_MASK ^ 0x3fbf4cbf)
+#define T19 0x265e5a51
+#define T20 /* 0xe9b6c7aa */ (T_MASK ^ 0x16493855)
+#define T21 /* 0xd62f105d */ (T_MASK ^ 0x29d0efa2)
+#define T22 0x02441453
+#define T23 /* 0xd8a1e681 */ (T_MASK ^ 0x275e197e)
+#define T24 /* 0xe7d3fbc8 */ (T_MASK ^ 0x182c0437)
+#define T25 0x21e1cde6
+#define T26 /* 0xc33707d6 */ (T_MASK ^ 0x3cc8f829)
+#define T27 /* 0xf4d50d87 */ (T_MASK ^ 0x0b2af278)
+#define T28 0x455a14ed
+#define T29 /* 0xa9e3e905 */ (T_MASK ^ 0x561c16fa)
+#define T30 /* 0xfcefa3f8 */ (T_MASK ^ 0x03105c07)
+#define T31 0x676f02d9
+#define T32 /* 0x8d2a4c8a */ (T_MASK ^ 0x72d5b375)
+#define T33 /* 0xfffa3942 */ (T_MASK ^ 0x0005c6bd)
+#define T34 /* 0x8771f681 */ (T_MASK ^ 0x788e097e)
+#define T35 0x6d9d6122
+#define T36 /* 0xfde5380c */ (T_MASK ^ 0x021ac7f3)
+#define T37 /* 0xa4beea44 */ (T_MASK ^ 0x5b4115bb)
+#define T38 0x4bdecfa9
+#define T39 /* 0xf6bb4b60 */ (T_MASK ^ 0x0944b49f)
+#define T40 /* 0xbebfbc70 */ (T_MASK ^ 0x4140438f)
+#define T41 0x289b7ec6
+#define T42 /* 0xeaa127fa */ (T_MASK ^ 0x155ed805)
+#define T43 /* 0xd4ef3085 */ (T_MASK ^ 0x2b10cf7a)
+#define T44 0x04881d05
+#define T45 /* 0xd9d4d039 */ (T_MASK ^ 0x262b2fc6)
+#define T46 /* 0xe6db99e5 */ (T_MASK ^ 0x1924661a)
+#define T47 0x1fa27cf8
+#define T48 /* 0xc4ac5665 */ (T_MASK ^ 0x3b53a99a)
+#define T49 /* 0xf4292244 */ (T_MASK ^ 0x0bd6ddbb)
+#define T50 0x432aff97
+#define T51 /* 0xab9423a7 */ (T_MASK ^ 0x546bdc58)
+#define T52 /* 0xfc93a039 */ (T_MASK ^ 0x036c5fc6)
+#define T53 0x655b59c3
+#define T54 /* 0x8f0ccc92 */ (T_MASK ^ 0x70f3336d)
+#define T55 /* 0xffeff47d */ (T_MASK ^ 0x00100b82)
+#define T56 /* 0x85845dd1 */ (T_MASK ^ 0x7a7ba22e)
+#define T57 0x6fa87e4f
+#define T58 /* 0xfe2ce6e0 */ (T_MASK ^ 0x01d3191f)
+#define T59 /* 0xa3014314 */ (T_MASK ^ 0x5cfebceb)
+#define T60 0x4e0811a1
+#define T61 /* 0xf7537e82 */ (T_MASK ^ 0x08ac817d)
+#define T62 /* 0xbd3af235 */ (T_MASK ^ 0x42c50dca)
+#define T63 0x2ad7d2bb
+#define T64 /* 0xeb86d391 */ (T_MASK ^ 0x14792c6e)
+
+
+static void
+md5_process(md5_state_t *pms, const md5_byte_t *data /*[64]*/)
+{
+ md5_word_t
+ a = pms->abcd[0], b = pms->abcd[1],
+ c = pms->abcd[2], d = pms->abcd[3];
+ md5_word_t t;
+#if BYTE_ORDER > 0
+ /* Define storage only for big-endian CPUs. */
+ md5_word_t X[16];
+#else
+ /* Define storage for little-endian or both types of CPUs. */
+ md5_word_t xbuf[16];
+ const md5_word_t *X;
+#endif
+
+ {
+#if BYTE_ORDER == 0
+ /*
+ * Determine dynamically whether this is a big-endian or
+ * little-endian machine, since we can use a more efficient
+ * algorithm on the latter.
+ */
+ static const int w = 1;
+
+ if (*((const md5_byte_t *)&w)) /* dynamic little-endian */
+#endif
+#if BYTE_ORDER <= 0 /* little-endian */
+ {
+ /*
+ * On little-endian machines, we can process properly aligned
+ * data without copying it.
+ */
+ if (!((data - (const md5_byte_t *)0) & 3)) {
+ /* data are properly aligned */
+ X = (const md5_word_t *)data;
+ } else {
+ /* not aligned */
+ memcpy(xbuf, data, 64);
+ X = xbuf;
+ }
+ }
+#endif
+#if BYTE_ORDER == 0
+ else /* dynamic big-endian */
+#endif
+#if BYTE_ORDER >= 0 /* big-endian */
+ {
+ /*
+ * On big-endian machines, we must arrange the bytes in the
+ * right order.
+ */
+ const md5_byte_t *xp = data;
+ int i;
+
+# if BYTE_ORDER == 0
+ X = xbuf; /* (dynamic only) */
+# else
+# define xbuf X /* (static only) */
+# endif
+ for (i = 0; i < 16; ++i, xp += 4)
+ xbuf[i] = xp[0] + (xp[1] << 8) + (xp[2] << 16) + (xp[3] << 24);
+ }
+#endif
+ }
+
+#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
+
+ /* Round 1. */
+ /* Let [abcd k s i] denote the operation
+ a = b + ((a + F(b,c,d) + X[k] + T[i]) <<< s). */
+#define F(x, y, z) (((x) & (y)) | (~(x) & (z)))
+#define SET(a, b, c, d, k, s, Ti)\
+ t = a + F(b,c,d) + X[k] + Ti;\
+ a = ROTATE_LEFT(t, s) + b
+ /* Do the following 16 operations. */
+ SET(a, b, c, d, 0, 7, T1);
+ SET(d, a, b, c, 1, 12, T2);
+ SET(c, d, a, b, 2, 17, T3);
+ SET(b, c, d, a, 3, 22, T4);
+ SET(a, b, c, d, 4, 7, T5);
+ SET(d, a, b, c, 5, 12, T6);
+ SET(c, d, a, b, 6, 17, T7);
+ SET(b, c, d, a, 7, 22, T8);
+ SET(a, b, c, d, 8, 7, T9);
+ SET(d, a, b, c, 9, 12, T10);
+ SET(c, d, a, b, 10, 17, T11);
+ SET(b, c, d, a, 11, 22, T12);
+ SET(a, b, c, d, 12, 7, T13);
+ SET(d, a, b, c, 13, 12, T14);
+ SET(c, d, a, b, 14, 17, T15);
+ SET(b, c, d, a, 15, 22, T16);
+#undef SET
+
+ /* Round 2. */
+ /* Let [abcd k s i] denote the operation
+ a = b + ((a + G(b,c,d) + X[k] + T[i]) <<< s). */
+#define G(x, y, z) (((x) & (z)) | ((y) & ~(z)))
+#define SET(a, b, c, d, k, s, Ti)\
+ t = a + G(b,c,d) + X[k] + Ti;\
+ a = ROTATE_LEFT(t, s) + b
+ /* Do the following 16 operations. */
+ SET(a, b, c, d, 1, 5, T17);
+ SET(d, a, b, c, 6, 9, T18);
+ SET(c, d, a, b, 11, 14, T19);
+ SET(b, c, d, a, 0, 20, T20);
+ SET(a, b, c, d, 5, 5, T21);
+ SET(d, a, b, c, 10, 9, T22);
+ SET(c, d, a, b, 15, 14, T23);
+ SET(b, c, d, a, 4, 20, T24);
+ SET(a, b, c, d, 9, 5, T25);
+ SET(d, a, b, c, 14, 9, T26);
+ SET(c, d, a, b, 3, 14, T27);
+ SET(b, c, d, a, 8, 20, T28);
+ SET(a, b, c, d, 13, 5, T29);
+ SET(d, a, b, c, 2, 9, T30);
+ SET(c, d, a, b, 7, 14, T31);
+ SET(b, c, d, a, 12, 20, T32);
+#undef SET
+
+ /* Round 3. */
+ /* Let [abcd k s t] denote the operation
+ a = b + ((a + H(b,c,d) + X[k] + T[i]) <<< s). */
+#define H(x, y, z) ((x) ^ (y) ^ (z))
+#define SET(a, b, c, d, k, s, Ti)\
+ t = a + H(b,c,d) + X[k] + Ti;\
+ a = ROTATE_LEFT(t, s) + b
+ /* Do the following 16 operations. */
+ SET(a, b, c, d, 5, 4, T33);
+ SET(d, a, b, c, 8, 11, T34);
+ SET(c, d, a, b, 11, 16, T35);
+ SET(b, c, d, a, 14, 23, T36);
+ SET(a, b, c, d, 1, 4, T37);
+ SET(d, a, b, c, 4, 11, T38);
+ SET(c, d, a, b, 7, 16, T39);
+ SET(b, c, d, a, 10, 23, T40);
+ SET(a, b, c, d, 13, 4, T41);
+ SET(d, a, b, c, 0, 11, T42);
+ SET(c, d, a, b, 3, 16, T43);
+ SET(b, c, d, a, 6, 23, T44);
+ SET(a, b, c, d, 9, 4, T45);
+ SET(d, a, b, c, 12, 11, T46);
+ SET(c, d, a, b, 15, 16, T47);
+ SET(b, c, d, a, 2, 23, T48);
+#undef SET
+
+ /* Round 4. */
+ /* Let [abcd k s t] denote the operation
+ a = b + ((a + I(b,c,d) + X[k] + T[i]) <<< s). */
+#define I(x, y, z) ((y) ^ ((x) | ~(z)))
+#define SET(a, b, c, d, k, s, Ti)\
+ t = a + I(b,c,d) + X[k] + Ti;\
+ a = ROTATE_LEFT(t, s) + b
+ /* Do the following 16 operations. */
+ SET(a, b, c, d, 0, 6, T49);
+ SET(d, a, b, c, 7, 10, T50);
+ SET(c, d, a, b, 14, 15, T51);
+ SET(b, c, d, a, 5, 21, T52);
+ SET(a, b, c, d, 12, 6, T53);
+ SET(d, a, b, c, 3, 10, T54);
+ SET(c, d, a, b, 10, 15, T55);
+ SET(b, c, d, a, 1, 21, T56);
+ SET(a, b, c, d, 8, 6, T57);
+ SET(d, a, b, c, 15, 10, T58);
+ SET(c, d, a, b, 6, 15, T59);
+ SET(b, c, d, a, 13, 21, T60);
+ SET(a, b, c, d, 4, 6, T61);
+ SET(d, a, b, c, 11, 10, T62);
+ SET(c, d, a, b, 2, 15, T63);
+ SET(b, c, d, a, 9, 21, T64);
+#undef SET
+
+ /* Then perform the following additions. (That is increment each
+ of the four registers by the value it had before this block
+ was started.) */
+ pms->abcd[0] += a;
+ pms->abcd[1] += b;
+ pms->abcd[2] += c;
+ pms->abcd[3] += d;
+}
+
+void
+md5_init(md5_state_t *pms)
+{
+ pms->count[0] = pms->count[1] = 0;
+ pms->abcd[0] = 0x67452301;
+ pms->abcd[1] = /*0xefcdab89*/ T_MASK ^ 0x10325476;
+ pms->abcd[2] = /*0x98badcfe*/ T_MASK ^ 0x67452301;
+ pms->abcd[3] = 0x10325476;
+}
+
+void
+md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes)
+{
+ const md5_byte_t *p = data;
+ int left = nbytes;
+ int offset = (pms->count[0] >> 3) & 63;
+ md5_word_t nbits = (md5_word_t)(nbytes << 3);
+
+ if (nbytes <= 0)
+ return;
+
+ /* Update the message length. */
+ pms->count[1] += nbytes >> 29;
+ pms->count[0] += nbits;
+ if (pms->count[0] < nbits)
+ pms->count[1]++;
+
+ /* Process an initial partial block. */
+ if (offset) {
+ int copy = (offset + nbytes > 64 ? 64 - offset : nbytes);
+
+ memcpy(pms->buf + offset, p, copy);
+ if (offset + copy < 64)
+ return;
+ p += copy;
+ left -= copy;
+ md5_process(pms, pms->buf);
+ }
+
+ /* Process full blocks. */
+ for (; left >= 64; p += 64, left -= 64)
+ md5_process(pms, p);
+
+ /* Process a final partial block. */
+ if (left)
+ memcpy(pms->buf, p, left);
+}
+
+void
+md5_finish(md5_state_t *pms, md5_byte_t digest[16])
+{
+ static const md5_byte_t pad[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
+ };
+ md5_byte_t data[8];
+ int i;
+
+ /* Save the length before padding. */
+ for (i = 0; i < 8; ++i)
+ data[i] = (md5_byte_t)(pms->count[i >> 2] >> ((i & 3) << 3));
+ /* Pad to 56 bytes mod 64. */
+ md5_append(pms, pad, ((55 - (pms->count[0] >> 3)) & 63) + 1);
+ /* Append the length. */
+ md5_append(pms, data, 8);
+ for (i = 0; i < 16; ++i)
+ digest[i] = (md5_byte_t)(pms->abcd[i >> 2] >> ((i & 3) << 3));
+}
projects / xonotic / netradiant.git / blobdiff