| Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/coreutils/src/lib/md5.c |
| Source code | Switch to Preprocessed file |
| Line | Source | Count | ||||||
|---|---|---|---|---|---|---|---|---|
| 1 | /* Functions to compute MD5 message digest of files or memory blocks. | - | ||||||
| 2 | according to the definition of MD5 in RFC 1321 from April 1992. | - | ||||||
| 3 | Copyright (C) 1995-1997, 1999-2001, 2005-2006, 2008-2018 Free Software | - | ||||||
| 4 | Foundation, Inc. | - | ||||||
| 5 | This file is part of the GNU C Library. | - | ||||||
| 6 | - | |||||||
| 7 | This program is free software; you can redistribute it and/or modify it | - | ||||||
| 8 | under the terms of the GNU General Public License as published by the | - | ||||||
| 9 | Free Software Foundation; either version 3, or (at your option) any | - | ||||||
| 10 | later version. | - | ||||||
| 11 | - | |||||||
| 12 | This program is distributed in the hope that it will be useful, | - | ||||||
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | - | ||||||
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | - | ||||||
| 15 | GNU General Public License for more details. | - | ||||||
| 16 | - | |||||||
| 17 | You should have received a copy of the GNU General Public License | - | ||||||
| 18 | along with this program; if not, see <https://www.gnu.org/licenses/>. */ | - | ||||||
| 19 | - | |||||||
| 20 | /* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. */ | - | ||||||
| 21 | - | |||||||
| 22 | #include <config.h> | - | ||||||
| 23 | - | |||||||
| 24 | #if HAVE_OPENSSL_MD5 | - | ||||||
| 25 | # define GL_OPENSSL_INLINE _GL_EXTERN_INLINE | - | ||||||
| 26 | #endif | - | ||||||
| 27 | #include "md5.h" | - | ||||||
| 28 | - | |||||||
| 29 | #include <stdalign.h> | - | ||||||
| 30 | #include <stdint.h> | - | ||||||
| 31 | #include <stdlib.h> | - | ||||||
| 32 | #include <string.h> | - | ||||||
| 33 | #include <sys/types.h> | - | ||||||
| 34 | - | |||||||
| 35 | #if USE_UNLOCKED_IO | - | ||||||
| 36 | # include "unlocked-io.h" | - | ||||||
| 37 | #endif | - | ||||||
| 38 | - | |||||||
| 39 | #ifdef _LIBC | - | ||||||
| 40 | # include <endian.h> | - | ||||||
| 41 | # if __BYTE_ORDER == __BIG_ENDIAN | - | ||||||
| 42 | # define WORDS_BIGENDIAN 1 | - | ||||||
| 43 | # endif | - | ||||||
| 44 | /* We need to keep the namespace clean so define the MD5 function | - | ||||||
| 45 | protected using leading __ . */ | - | ||||||
| 46 | # define md5_init_ctx __md5_init_ctx | - | ||||||
| 47 | # define md5_process_block __md5_process_block | - | ||||||
| 48 | # define md5_process_bytes __md5_process_bytes | - | ||||||
| 49 | # define md5_finish_ctx __md5_finish_ctx | - | ||||||
| 50 | # define md5_read_ctx __md5_read_ctx | - | ||||||
| 51 | # define md5_stream __md5_stream | - | ||||||
| 52 | # define md5_buffer __md5_buffer | - | ||||||
| 53 | #endif | - | ||||||
| 54 | - | |||||||
| 55 | #ifdef WORDS_BIGENDIAN | - | ||||||
| 56 | # define SWAP(n) \ | - | ||||||
| 57 | (((n) << 24) | (((n) & 0xff00) << 8) | (((n) >> 8) & 0xff00) | ((n) >> 24)) | - | ||||||
| 58 | #else | - | ||||||
| 59 | # define SWAP(n) (n) | - | ||||||
| 60 | #endif | - | ||||||
| 61 | - | |||||||
| 62 | #define BLOCKSIZE 32768 | - | ||||||
| 63 | #if BLOCKSIZE % 64 != 0 | - | ||||||
| 64 | # error "invalid BLOCKSIZE" | - | ||||||
| 65 | #endif | - | ||||||
| 66 | - | |||||||
| 67 | #if ! HAVE_OPENSSL_MD5 | - | ||||||
| 68 | /* This array contains the bytes used to pad the buffer to the next | - | ||||||
| 69 | 64-byte boundary. (RFC 1321, 3.1: Step 1) */ | - | ||||||
| 70 | static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ... */ }; | - | ||||||
| 71 | - | |||||||
| 72 | - | |||||||
| 73 | /* Initialize structure containing state of computation. | - | ||||||
| 74 | (RFC 1321, 3.3: Step 3) */ | - | ||||||
| 75 | void | - | ||||||
| 76 | md5_init_ctx (struct md5_ctx *ctx) | - | ||||||
| 77 | { | - | ||||||
| 78 | ctx->A = 0x67452301; | - | ||||||
| 79 | ctx->B = 0xefcdab89; | - | ||||||
| 80 | ctx->C = 0x98badcfe; | - | ||||||
| 81 | ctx->D = 0x10325476; | - | ||||||
| 82 | - | |||||||
| 83 | ctx->total[0] = ctx->total[1] = 0; | - | ||||||
| 84 | ctx->buflen = 0; | - | ||||||
| 85 | } executed 1586 times by 2 tests: end of blockExecuted by:
| 1586 | ||||||
| 86 | - | |||||||
| 87 | /* Copy the 4 byte value from v into the memory location pointed to by *cp, | - | ||||||
| 88 | If your architecture allows unaligned access this is equivalent to | - | ||||||
| 89 | * (uint32_t *) cp = v */ | - | ||||||
| 90 | static void | - | ||||||
| 91 | set_uint32 (char *cp, uint32_t v) | - | ||||||
| 92 | { | - | ||||||
| 93 | memcpy (cp, &v, sizeof v); | - | ||||||
| 94 | } executed 5168964 times by 2 tests: end of blockExecuted by:
| 5168964 | ||||||
| 95 | - | |||||||
| 96 | /* Put result from CTX in first 16 bytes following RESBUF. The result | - | ||||||
| 97 | must be in little endian byte order. */ | - | ||||||
| 98 | void * | - | ||||||
| 99 | md5_read_ctx (const struct md5_ctx *ctx, void *resbuf) | - | ||||||
| 100 | { | - | ||||||
| 101 | char *r = resbuf; | - | ||||||
| 102 | set_uint32 (r + 0 * sizeof ctx->A, SWAP (ctx->A)); | - | ||||||
| 103 | set_uint32 (r + 1 * sizeof ctx->B, SWAP (ctx->B)); | - | ||||||
| 104 | set_uint32 (r + 2 * sizeof ctx->C, SWAP (ctx->C)); | - | ||||||
| 105 | set_uint32 (r + 3 * sizeof ctx->D, SWAP (ctx->D)); | - | ||||||
| 106 | - | |||||||
| 107 | return resbuf; executed 1292241 times by 2 tests: return resbuf;Executed by:
| 1292241 | ||||||
| 108 | } | - | ||||||
| 109 | - | |||||||
| 110 | /* Process the remaining bytes in the internal buffer and the usual | - | ||||||
| 111 | prolog according to the standard and write the result to RESBUF. */ | - | ||||||
| 112 | void * | - | ||||||
| 113 | md5_finish_ctx (struct md5_ctx *ctx, void *resbuf) | - | ||||||
| 114 | { | - | ||||||
| 115 | /* Take yet unprocessed bytes into account. */ | - | ||||||
| 116 | uint32_t bytes = ctx->buflen; | - | ||||||
| 117 | size_t size = (bytes < 56) ? 64 / 4 : 64 * 2 / 4;
| 1-1292240 | ||||||
| 118 | - | |||||||
| 119 | /* Now count remaining bytes. */ | - | ||||||
| 120 | ctx->total[0] += bytes; | - | ||||||
| 121 | if (ctx->total[0] < bytes)
| 0-1292241 | ||||||
| 122 | ++ctx->total[1]; never executed: ++ctx->total[1]; | 0 | ||||||
| 123 | - | |||||||
| 124 | /* Put the 64-bit file length in *bits* at the end of the buffer. */ | - | ||||||
| 125 | ctx->buffer[size - 2] = SWAP (ctx->total[0] << 3); | - | ||||||
| 126 | ctx->buffer[size - 1] = SWAP ((ctx->total[1] << 3) | (ctx->total[0] >> 29)); | - | ||||||
| 127 | - | |||||||
| 128 | memcpy (&((char *) ctx->buffer)[bytes], fillbuf, (size - 2) * 4 - bytes); | - | ||||||
| 129 | - | |||||||
| 130 | /* Process last bytes. */ | - | ||||||
| 131 | md5_process_block (ctx->buffer, size * 4, ctx); | - | ||||||
| 132 | - | |||||||
| 133 | return md5_read_ctx (ctx, resbuf); executed 1292241 times by 2 tests: return md5_read_ctx (ctx, resbuf);Executed by:
| 1292241 | ||||||
| 134 | } | - | ||||||
| 135 | #endif | - | ||||||
| 136 | - | |||||||
| 137 | /* Compute MD5 message digest for bytes read from STREAM. The | - | ||||||
| 138 | resulting message digest number will be written into the 16 bytes | - | ||||||
| 139 | beginning at RESBLOCK. */ | - | ||||||
| 140 | int | - | ||||||
| 141 | md5_stream (FILE *stream, void *resblock) | - | ||||||
| 142 | { | - | ||||||
| 143 | struct md5_ctx ctx; | - | ||||||
| 144 | size_t sum; | - | ||||||
| 145 | - | |||||||
| 146 | char *buffer = malloc (BLOCKSIZE + 72); | - | ||||||
| 147 | if (!buffer)
| 0-1571 | ||||||
| 148 | return 1; never executed: return 1; | 0 | ||||||
| 149 | - | |||||||
| 150 | /* Initialize the computation context. */ | - | ||||||
| 151 | md5_init_ctx (&ctx); | - | ||||||
| 152 | - | |||||||
| 153 | /* Iterate over full file contents. */ | - | ||||||
| 154 | while (1) | - | ||||||
| 155 | { | - | ||||||
| 156 | /* We read the file in blocks of BLOCKSIZE bytes. One call of the | - | ||||||
| 157 | computation function processes the whole buffer so that with the | - | ||||||
| 158 | next round of the loop another block can be read. */ | - | ||||||
| 159 | size_t n; | - | ||||||
| 160 | sum = 0; | - | ||||||
| 161 | - | |||||||
| 162 | /* Read block. Take care for partial reads. */ | - | ||||||
| 163 | while (1) | - | ||||||
| 164 | { | - | ||||||
| 165 | n = fread (buffer + sum, 1, BLOCKSIZE - sum, stream); | - | ||||||
| 166 | - | |||||||
| 167 | sum += n; | - | ||||||
| 168 | - | |||||||
| 169 | if (sum == BLOCKSIZE)
| 250-1571 | ||||||
| 170 | break; executed 250 times by 1 test: break;Executed by:
| 250 | ||||||
| 171 | - | |||||||
| 172 | if (n == 0)
| 49-1522 | ||||||
| 173 | { | - | ||||||
| 174 | /* Check for the error flag IFF N == 0, so that we don't | - | ||||||
| 175 | exit the loop after a partial read due to e.g., EAGAIN | - | ||||||
| 176 | or EWOULDBLOCK. */ | - | ||||||
| 177 | if (ferror (stream))
| 0-1522 | ||||||
| 178 | { | - | ||||||
| 179 | free (buffer); | - | ||||||
| 180 | return 1; never executed: return 1; | 0 | ||||||
| 181 | } | - | ||||||
| 182 | goto process_partial_block; executed 1522 times by 1 test: goto process_partial_block;Executed by:
| 1522 | ||||||
| 183 | } | - | ||||||
| 184 | - | |||||||
| 185 | /* We've read at least one byte, so ignore errors. But always | - | ||||||
| 186 | check for EOF, since feof may be true even though N > 0. | - | ||||||
| 187 | Otherwise, we could end up calling fread after EOF. */ | - | ||||||
| 188 | if (feof (stream))
| 0-49 | ||||||
| 189 | goto process_partial_block; executed 49 times by 1 test: goto process_partial_block;Executed by:
| 49 | ||||||
| 190 | } never executed: end of block | 0 | ||||||
| 191 | - | |||||||
| 192 | /* Process buffer with BLOCKSIZE bytes. Note that | - | ||||||
| 193 | BLOCKSIZE % 64 == 0 | - | ||||||
| 194 | */ | - | ||||||
| 195 | md5_process_block (buffer, BLOCKSIZE, &ctx); | - | ||||||
| 196 | } executed 250 times by 1 test: end of blockExecuted by:
| 250 | ||||||
| 197 | - | |||||||
| 198 | process_partial_block: code before this statement never executed: process_partial_block: | 0 | ||||||
| 199 | - | |||||||
| 200 | /* Process any remaining bytes. */ | - | ||||||
| 201 | if (sum > 0)
| 49-1522 | ||||||
| 202 | md5_process_bytes (buffer, sum, &ctx); executed 49 times by 1 test: md5_process_bytes (buffer, sum, &ctx);Executed by:
| 49 | ||||||
| 203 | - | |||||||
| 204 | /* Construct result in desired memory. */ | - | ||||||
| 205 | md5_finish_ctx (&ctx, resblock); | - | ||||||
| 206 | free (buffer); | - | ||||||
| 207 | return 0; executed 1571 times by 1 test: return 0;Executed by:
| 1571 | ||||||
| 208 | } | - | ||||||
| 209 | - | |||||||
| 210 | #if ! HAVE_OPENSSL_MD5 | - | ||||||
| 211 | /* Compute MD5 message digest for LEN bytes beginning at BUFFER. The | - | ||||||
| 212 | result is always in little endian byte order, so that a byte-wise | - | ||||||
| 213 | output yields to the wanted ASCII representation of the message | - | ||||||
| 214 | digest. */ | - | ||||||
| 215 | void * | - | ||||||
| 216 | md5_buffer (const char *buffer, size_t len, void *resblock) | - | ||||||
| 217 | { | - | ||||||
| 218 | struct md5_ctx ctx; | - | ||||||
| 219 | - | |||||||
| 220 | /* Initialize the computation context. */ | - | ||||||
| 221 | md5_init_ctx (&ctx); | - | ||||||
| 222 | - | |||||||
| 223 | /* Process whole buffer but last len % 64 bytes. */ | - | ||||||
| 224 | md5_process_bytes (buffer, len, &ctx); | - | ||||||
| 225 | - | |||||||
| 226 | /* Put result in desired memory area. */ | - | ||||||
| 227 | return md5_finish_ctx (&ctx, resblock); never executed: return md5_finish_ctx (&ctx, resblock); | 0 | ||||||
| 228 | } | - | ||||||
| 229 | - | |||||||
| 230 | - | |||||||
| 231 | void | - | ||||||
| 232 | md5_process_bytes (const void *buffer, size_t len, struct md5_ctx *ctx) | - | ||||||
| 233 | { | - | ||||||
| 234 | /* When we already have some bits in our internal buffer concatenate | - | ||||||
| 235 | both inputs first. */ | - | ||||||
| 236 | if (ctx->buflen != 0)
| 64-1290670 | ||||||
| 237 | { | - | ||||||
| 238 | size_t left_over = ctx->buflen; | - | ||||||
| 239 | size_t add = 128 - left_over > len ? len : 128 - left_over;
| 0-1290670 | ||||||
| 240 | - | |||||||
| 241 | memcpy (&((char *) ctx->buffer)[left_over], buffer, add); | - | ||||||
| 242 | ctx->buflen += add; | - | ||||||
| 243 | - | |||||||
| 244 | if (ctx->buflen > 64)
| 240828-1049842 | ||||||
| 245 | { | - | ||||||
| 246 | md5_process_block (ctx->buffer, ctx->buflen & ~63, ctx); | - | ||||||
| 247 | - | |||||||
| 248 | ctx->buflen &= 63; | - | ||||||
| 249 | /* The regions in the following copy operation cannot overlap, | - | ||||||
| 250 | because ctx->buflen < 64 ≤ (left_over + add) & ~63. */ | - | ||||||
| 251 | memcpy (ctx->buffer, | - | ||||||
| 252 | &((char *) ctx->buffer)[(left_over + add) & ~63], | - | ||||||
| 253 | ctx->buflen); | - | ||||||
| 254 | } executed 240828 times by 1 test: end of blockExecuted by:
| 240828 | ||||||
| 255 | - | |||||||
| 256 | buffer = (const char *) buffer + add; | - | ||||||
| 257 | len -= add; | - | ||||||
| 258 | } executed 1290670 times by 1 test: end of blockExecuted by:
| 1290670 | ||||||
| 259 | - | |||||||
| 260 | /* Process available complete blocks. */ | - | ||||||
| 261 | if (len >= 64)
| 3-1290731 | ||||||
| 262 | { | - | ||||||
| 263 | #if !(_STRING_ARCH_unaligned || _STRING_INLINE_unaligned) | - | ||||||
| 264 | # define UNALIGNED_P(p) ((uintptr_t) (p) % alignof (uint32_t) != 0) | - | ||||||
| 265 | if (UNALIGNED_P (buffer)) | - | ||||||
| 266 | while (len > 64) | - | ||||||
| 267 | { | - | ||||||
| 268 | md5_process_block (memcpy (ctx->buffer, buffer, 64), 64, ctx); | - | ||||||
| 269 | buffer = (const char *) buffer + 64; | - | ||||||
| 270 | len -= 64; | - | ||||||
| 271 | } | - | ||||||
| 272 | else | - | ||||||
| 273 | #endif | - | ||||||
| 274 | { | - | ||||||
| 275 | md5_process_block (buffer, len & ~63, ctx); | - | ||||||
| 276 | buffer = (const char *) buffer + (len & ~63); | - | ||||||
| 277 | len &= 63; | - | ||||||
| 278 | } | - | ||||||
| 279 | } executed 3 times by 1 test: end of blockExecuted by:
| 3 | ||||||
| 280 | - | |||||||
| 281 | /* Move remaining bytes in internal buffer. */ | - | ||||||
| 282 | if (len > 0)
| 64-1290670 | ||||||
| 283 | { | - | ||||||
| 284 | size_t left_over = ctx->buflen; | - | ||||||
| 285 | - | |||||||
| 286 | memcpy (&((char *) ctx->buffer)[left_over], buffer, len); | - | ||||||
| 287 | left_over += len; | - | ||||||
| 288 | if (left_over >= 64)
| 0-64 | ||||||
| 289 | { | - | ||||||
| 290 | md5_process_block (ctx->buffer, 64, ctx); | - | ||||||
| 291 | left_over -= 64; | - | ||||||
| 292 | /* The regions in the following copy operation cannot overlap, | - | ||||||
| 293 | because left_over ≤ 64. */ | - | ||||||
| 294 | memcpy (ctx->buffer, &ctx->buffer[16], left_over); | - | ||||||
| 295 | } never executed: end of block | 0 | ||||||
| 296 | ctx->buflen = left_over; | - | ||||||
| 297 | } executed 64 times by 2 tests: end of blockExecuted by:
| 64 | ||||||
| 298 | } executed 1290734 times by 2 tests: end of blockExecuted by:
| 1290734 | ||||||
| 299 | - | |||||||
| 300 | - | |||||||
| 301 | /* These are the four functions used in the four steps of the MD5 algorithm | - | ||||||
| 302 | and defined in the RFC 1321. The first function is a little bit optimized | - | ||||||
| 303 | (as found in Colin Plumbs public domain implementation). */ | - | ||||||
| 304 | /* #define FF(b, c, d) ((b & c) | (~b & d)) */ | - | ||||||
| 305 | #define FF(b, c, d) (d ^ (b & (c ^ d))) | - | ||||||
| 306 | #define FG(b, c, d) FF (d, b, c) | - | ||||||
| 307 | #define FH(b, c, d) (b ^ c ^ d) | - | ||||||
| 308 | #define FI(b, c, d) (c ^ (b | ~d)) | - | ||||||
| 309 | - | |||||||
| 310 | /* Process LEN bytes of BUFFER, accumulating context into CTX. | - | ||||||
| 311 | It is assumed that LEN % 64 == 0. */ | - | ||||||
| 312 | - | |||||||
| 313 | void | - | ||||||
| 314 | md5_process_block (const void *buffer, size_t len, struct md5_ctx *ctx) | - | ||||||
| 315 | { | - | ||||||
| 316 | uint32_t correct_words[16]; | - | ||||||
| 317 | const uint32_t *words = buffer; | - | ||||||
| 318 | size_t nwords = len / sizeof (uint32_t); | - | ||||||
| 319 | const uint32_t *endp = words + nwords; | - | ||||||
| 320 | uint32_t A = ctx->A; | - | ||||||
| 321 | uint32_t B = ctx->B; | - | ||||||
| 322 | uint32_t C = ctx->C; | - | ||||||
| 323 | uint32_t D = ctx->D; | - | ||||||
| 324 | uint32_t lolen = len; | - | ||||||
| 325 | - | |||||||
| 326 | /* First increment the byte count. RFC 1321 specifies the possible | - | ||||||
| 327 | length of the file up to 2^64 bits. Here we only compute the | - | ||||||
| 328 | number of bytes. Do a double word increment. */ | - | ||||||
| 329 | ctx->total[0] += lolen; | - | ||||||
| 330 | ctx->total[1] += (len >> 31 >> 1) + (ctx->total[0] < lolen); | - | ||||||
| 331 | - | |||||||
| 332 | /* Process all bytes in the buffer with 64 bytes in each round of | - | ||||||
| 333 | the loop. */ | - | ||||||
| 334 | while (words < endp)
| 1533322-1661253 | ||||||
| 335 | { | - | ||||||
| 336 | uint32_t *cwp = correct_words; | - | ||||||
| 337 | uint32_t A_save = A; | - | ||||||
| 338 | uint32_t B_save = B; | - | ||||||
| 339 | uint32_t C_save = C; | - | ||||||
| 340 | uint32_t D_save = D; | - | ||||||
| 341 | - | |||||||
| 342 | /* First round: using the given function, the context and a constant | - | ||||||
| 343 | the next context is computed. Because the algorithms processing | - | ||||||
| 344 | unit is a 32-bit word and it is determined to work on words in | - | ||||||
| 345 | little endian byte order we perhaps have to change the byte order | - | ||||||
| 346 | before the computation. To reduce the work for the next steps | - | ||||||
| 347 | we store the swapped words in the array CORRECT_WORDS. */ | - | ||||||
| 348 | - | |||||||
| 349 | #define OP(a, b, c, d, s, T) \ | - | ||||||
| 350 | do \ | - | ||||||
| 351 | { \ | - | ||||||
| 352 | a += FF (b, c, d) + (*cwp++ = SWAP (*words)) + T; \ | - | ||||||
| 353 | ++words; \ | - | ||||||
| 354 | CYCLIC (a, s); \ | - | ||||||
| 355 | a += b; \ | - | ||||||
| 356 | } \ | - | ||||||
| 357 | while (0) | - | ||||||
| 358 | - | |||||||
| 359 | /* It is unfortunate that C does not provide an operator for | - | ||||||
| 360 | cyclic rotation. Hope the C compiler is smart enough. */ | - | ||||||
| 361 | #define CYCLIC(w, s) (w = (w << s) | (w >> (32 - s))) | - | ||||||
| 362 | - | |||||||
| 363 | /* Before we start, one word to the strange constants. | - | ||||||
| 364 | They are defined in RFC 1321 as | - | ||||||
| 365 | - | |||||||
| 366 | T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..64 | - | ||||||
| 367 | - | |||||||
| 368 | Here is an equivalent invocation using Perl: | - | ||||||
| 369 | - | |||||||
| 370 | perl -e 'foreach(1..64){printf "0x%08x\n", int (4294967296 * abs (sin $_))}' | - | ||||||
| 371 | */ | - | ||||||
| 372 | - | |||||||
| 373 | /* Round 1. */ | - | ||||||
| 374 | OP (A, B, C, D, 7, 0xd76aa478); | - | ||||||
| 375 | OP (D, A, B, C, 12, 0xe8c7b756); | - | ||||||
| 376 | OP (C, D, A, B, 17, 0x242070db); | - | ||||||
| 377 | OP (B, C, D, A, 22, 0xc1bdceee); | - | ||||||
| 378 | OP (A, B, C, D, 7, 0xf57c0faf); | - | ||||||
| 379 | OP (D, A, B, C, 12, 0x4787c62a); | - | ||||||
| 380 | OP (C, D, A, B, 17, 0xa8304613); | - | ||||||
| 381 | OP (B, C, D, A, 22, 0xfd469501); | - | ||||||
| 382 | OP (A, B, C, D, 7, 0x698098d8); | - | ||||||
| 383 | OP (D, A, B, C, 12, 0x8b44f7af); | - | ||||||
| 384 | OP (C, D, A, B, 17, 0xffff5bb1); | - | ||||||
| 385 | OP (B, C, D, A, 22, 0x895cd7be); | - | ||||||
| 386 | OP (A, B, C, D, 7, 0x6b901122); | - | ||||||
| 387 | OP (D, A, B, C, 12, 0xfd987193); | - | ||||||
| 388 | OP (C, D, A, B, 17, 0xa679438e); | - | ||||||
| 389 | OP (B, C, D, A, 22, 0x49b40821); | - | ||||||
| 390 | - | |||||||
| 391 | /* For the second to fourth round we have the possibly swapped words | - | ||||||
| 392 | in CORRECT_WORDS. Redefine the macro to take an additional first | - | ||||||
| 393 | argument specifying the function to use. */ | - | ||||||
| 394 | #undef OP | - | ||||||
| 395 | #define OP(f, a, b, c, d, k, s, T) \ | - | ||||||
| 396 | do \ | - | ||||||
| 397 | { \ | - | ||||||
| 398 | a += f (b, c, d) + correct_words[k] + T; \ | - | ||||||
| 399 | CYCLIC (a, s); \ | - | ||||||
| 400 | a += b; \ | - | ||||||
| 401 | } \ | - | ||||||
| 402 | while (0) | - | ||||||
| 403 | - | |||||||
| 404 | /* Round 2. */ | - | ||||||
| 405 | OP (FG, A, B, C, D, 1, 5, 0xf61e2562); | - | ||||||
| 406 | OP (FG, D, A, B, C, 6, 9, 0xc040b340); | - | ||||||
| 407 | OP (FG, C, D, A, B, 11, 14, 0x265e5a51); | - | ||||||
| 408 | OP (FG, B, C, D, A, 0, 20, 0xe9b6c7aa); | - | ||||||
| 409 | OP (FG, A, B, C, D, 5, 5, 0xd62f105d); | - | ||||||
| 410 | OP (FG, D, A, B, C, 10, 9, 0x02441453); | - | ||||||
| 411 | OP (FG, C, D, A, B, 15, 14, 0xd8a1e681); | - | ||||||
| 412 | OP (FG, B, C, D, A, 4, 20, 0xe7d3fbc8); | - | ||||||
| 413 | OP (FG, A, B, C, D, 9, 5, 0x21e1cde6); | - | ||||||
| 414 | OP (FG, D, A, B, C, 14, 9, 0xc33707d6); | - | ||||||
| 415 | OP (FG, C, D, A, B, 3, 14, 0xf4d50d87); | - | ||||||
| 416 | OP (FG, B, C, D, A, 8, 20, 0x455a14ed); | - | ||||||
| 417 | OP (FG, A, B, C, D, 13, 5, 0xa9e3e905); | - | ||||||
| 418 | OP (FG, D, A, B, C, 2, 9, 0xfcefa3f8); | - | ||||||
| 419 | OP (FG, C, D, A, B, 7, 14, 0x676f02d9); | - | ||||||
| 420 | OP (FG, B, C, D, A, 12, 20, 0x8d2a4c8a); | - | ||||||
| 421 | - | |||||||
| 422 | /* Round 3. */ | - | ||||||
| 423 | OP (FH, A, B, C, D, 5, 4, 0xfffa3942); | - | ||||||
| 424 | OP (FH, D, A, B, C, 8, 11, 0x8771f681); | - | ||||||
| 425 | OP (FH, C, D, A, B, 11, 16, 0x6d9d6122); | - | ||||||
| 426 | OP (FH, B, C, D, A, 14, 23, 0xfde5380c); | - | ||||||
| 427 | OP (FH, A, B, C, D, 1, 4, 0xa4beea44); | - | ||||||
| 428 | OP (FH, D, A, B, C, 4, 11, 0x4bdecfa9); | - | ||||||
| 429 | OP (FH, C, D, A, B, 7, 16, 0xf6bb4b60); | - | ||||||
| 430 | OP (FH, B, C, D, A, 10, 23, 0xbebfbc70); | - | ||||||
| 431 | OP (FH, A, B, C, D, 13, 4, 0x289b7ec6); | - | ||||||
| 432 | OP (FH, D, A, B, C, 0, 11, 0xeaa127fa); | - | ||||||
| 433 | OP (FH, C, D, A, B, 3, 16, 0xd4ef3085); | - | ||||||
| 434 | OP (FH, B, C, D, A, 6, 23, 0x04881d05); | - | ||||||
| 435 | OP (FH, A, B, C, D, 9, 4, 0xd9d4d039); | - | ||||||
| 436 | OP (FH, D, A, B, C, 12, 11, 0xe6db99e5); | - | ||||||
| 437 | OP (FH, C, D, A, B, 15, 16, 0x1fa27cf8); | - | ||||||
| 438 | OP (FH, B, C, D, A, 2, 23, 0xc4ac5665); | - | ||||||
| 439 | - | |||||||
| 440 | /* Round 4. */ | - | ||||||
| 441 | OP (FI, A, B, C, D, 0, 6, 0xf4292244); | - | ||||||
| 442 | OP (FI, D, A, B, C, 7, 10, 0x432aff97); | - | ||||||
| 443 | OP (FI, C, D, A, B, 14, 15, 0xab9423a7); | - | ||||||
| 444 | OP (FI, B, C, D, A, 5, 21, 0xfc93a039); | - | ||||||
| 445 | OP (FI, A, B, C, D, 12, 6, 0x655b59c3); | - | ||||||
| 446 | OP (FI, D, A, B, C, 3, 10, 0x8f0ccc92); | - | ||||||
| 447 | OP (FI, C, D, A, B, 10, 15, 0xffeff47d); | - | ||||||
| 448 | OP (FI, B, C, D, A, 1, 21, 0x85845dd1); | - | ||||||
| 449 | OP (FI, A, B, C, D, 8, 6, 0x6fa87e4f); | - | ||||||
| 450 | OP (FI, D, A, B, C, 15, 10, 0xfe2ce6e0); | - | ||||||
| 451 | OP (FI, C, D, A, B, 6, 15, 0xa3014314); | - | ||||||
| 452 | OP (FI, B, C, D, A, 13, 21, 0x4e0811a1); | - | ||||||
| 453 | OP (FI, A, B, C, D, 4, 6, 0xf7537e82); | - | ||||||
| 454 | OP (FI, D, A, B, C, 11, 10, 0xbd3af235); | - | ||||||
| 455 | OP (FI, C, D, A, B, 2, 15, 0x2ad7d2bb); | - | ||||||
| 456 | OP (FI, B, C, D, A, 9, 21, 0xeb86d391); | - | ||||||
| 457 | - | |||||||
| 458 | /* Add the starting values of the context. */ | - | ||||||
| 459 | A += A_save; | - | ||||||
| 460 | B += B_save; | - | ||||||
| 461 | C += C_save; | - | ||||||
| 462 | D += D_save; | - | ||||||
| 463 | } executed 1661253 times by 2 tests: end of blockExecuted by:
| 1661253 | ||||||
| 464 | - | |||||||
| 465 | /* Put checksum in context given as argument. */ | - | ||||||
| 466 | ctx->A = A; | - | ||||||
| 467 | ctx->B = B; | - | ||||||
| 468 | ctx->C = C; | - | ||||||
| 469 | ctx->D = D; | - | ||||||
| 470 | } executed 1533322 times by 2 tests: end of blockExecuted by:
| 1533322 | ||||||
| 471 | #endif | - | ||||||
| 472 | - | |||||||
| 473 | /* | - | ||||||
| 474 | * Hey Emacs! | - | ||||||
| 475 | * Local Variables: | - | ||||||
| 476 | * coding: utf-8 | - | ||||||
| 477 | * End: | - | ||||||
| 478 | */ | - | ||||||
| Source code | Switch to Preprocessed file |