cksum.c revision 1.36
1 /* $NetBSD: cksum.c,v 1.36 2006/05/05 22:07:22 elad Exp $ */ 2 3 /*- 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * James W. Williams of NASA Goddard Space Flight Center. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 /*- 36 * Copyright (c) 1997 Jason R. Thorpe. All rights reserved. 37 * 38 * This code is derived from software contributed to Berkeley by 39 * James W. Williams of NASA Goddard Space Flight Center. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. All advertising materials mentioning features or use of this software 50 * must display the following acknowledgement: 51 * This product includes software developed by the University of 52 * California, Berkeley and its contributors. 53 * 4. Neither the name of the University nor the names of its contributors 54 * may be used to endorse or promote products derived from this software 55 * without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 58 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 59 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 60 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 61 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 62 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 63 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 64 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 65 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 66 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 67 * SUCH DAMAGE. 68 */ 69 70 #if HAVE_NBTOOL_CONFIG_H 71 #include "nbtool_config.h" 72 #endif 73 74 #include <sys/cdefs.h> 75 #if defined(__COPYRIGHT) && !defined(lint) 76 __COPYRIGHT("@(#) Copyright (c) 1991, 1993\n\ 77 The Regents of the University of California. All rights reserved.\n"); 78 #endif /* not lint */ 79 80 #if defined(__RCSID) && !defined(lint) 81 #if 0 82 static char sccsid[] = "@(#)cksum.c 8.2 (Berkeley) 4/28/95"; 83 #endif 84 __RCSID("$NetBSD: cksum.c,v 1.36 2006/05/05 22:07:22 elad Exp $"); 85 #endif /* not lint */ 86 87 #include <sys/cdefs.h> 88 #include <sys/types.h> 89 90 #include <err.h> 91 #include <errno.h> 92 #include <fcntl.h> 93 #include <locale.h> 94 #include <md5.h> 95 #include <md4.h> 96 #include <md2.h> 97 #include <sha1.h> 98 #include <crypto/sha2.h> 99 #include <crypto/rmd160.h> 100 #include <stdio.h> 101 #include <stdlib.h> 102 #include <string.h> 103 #include <unistd.h> 104 105 #include "extern.h" 106 107 #define HASH_MD2 0 108 #define HASH_MD4 1 109 #define HASH_MD5 2 110 #define HASH_SHA1 3 111 #define HASH_RMD160 4 112 113 typedef char *(*_filefunc)(const char *, char *); 114 115 struct hash { 116 const char *progname; 117 const char *hashname; 118 void (*stringfunc)(const char *); 119 void (*timetrialfunc)(void); 120 void (*testsuitefunc)(void); 121 void (*filterfunc)(int); 122 char *(*filefunc)(const char *, char *); 123 } hashes[] = { 124 { "md2", "MD2", 125 MD2String, MD2TimeTrial, MD2TestSuite, 126 MD2Filter, MD2File }, 127 { "md4", "MD4", 128 MD4String, MD4TimeTrial, MD4TestSuite, 129 MD4Filter, MD4File }, 130 { "md5", "MD5", 131 MD5String, MD5TimeTrial, MD5TestSuite, 132 MD5Filter, MD5File }, 133 { "sha1", "SHA1", 134 SHA1String, SHA1TimeTrial, SHA1TestSuite, 135 SHA1Filter, (_filefunc) SHA1File }, 136 { "rmd160", "RMD160", 137 RMD160String, RMD160TimeTrial, RMD160TestSuite, 138 RMD160Filter, (_filefunc) RMD160File }, 139 { "sha256", "SHA256", 140 SHA256_String, SHA256_TimeTrial, SHA256_TestSuite, 141 SHA256_Filter, (_filefunc) SHA256_File }, 142 { "sha384", "SHA384", 143 SHA384_String, SHA384_TimeTrial, SHA384_TestSuite, 144 SHA384_Filter, (_filefunc) SHA384_File }, 145 { "sha512", "SHA512", 146 SHA512_String, SHA512_TimeTrial, SHA512_TestSuite, 147 SHA512_Filter, (_filefunc) SHA512_File }, 148 { NULL } 149 }; 150 151 int hash_digest_file(char *, struct hash *, int); 152 void requirehash(const char *); 153 void usage(void); 154 155 int 156 main(int argc, char **argv) 157 { 158 int ch, fd, rval, dosum, pflag, nohashstdin; 159 u_int32_t val; 160 off_t len; 161 char *fn; 162 const char *progname; 163 int (*cfncn) (int, u_int32_t *, off_t *); 164 void (*pfncn) (char *, u_int32_t, off_t); 165 struct hash *hash; 166 int normal, i, check_warn, do_check; 167 168 cfncn = NULL; 169 pfncn = NULL; 170 dosum = pflag = nohashstdin = 0; 171 normal = 0; 172 check_warn = 0; 173 do_check = 0; 174 175 setlocale(LC_ALL, ""); 176 177 progname = getprogname(); 178 179 for (hash = hashes; hash->hashname != NULL; hash++) 180 if (strcmp(progname, hash->progname) == 0) 181 break; 182 183 if (hash->hashname == NULL) { 184 hash = NULL; 185 186 if (!strcmp(progname, "sum")) { 187 dosum = 1; 188 cfncn = csum1; 189 pfncn = psum1; 190 } else { 191 cfncn = crc; 192 pfncn = pcrc; 193 } 194 } 195 196 while ((ch = getopt(argc, argv, "a:cno:ps:twx")) != -1) 197 switch(ch) { 198 case 'a': 199 if (hash != NULL || dosum) { 200 warnx("illegal use of -a option\n"); 201 usage(); 202 } 203 i = 0; 204 while (hashes[i].hashname != NULL) { 205 if (!strcasecmp(hashes[i].hashname, optarg)) { 206 hash = &hashes[i]; 207 break; 208 } 209 i++; 210 } 211 if (hash == NULL) { 212 if (!strcasecmp(optarg, "old1")) { 213 cfncn = csum1; 214 pfncn = psum1; 215 } else if (!strcasecmp(optarg, "old2")) { 216 cfncn = csum2; 217 pfncn = psum2; 218 } else if (!strcasecmp(optarg, "crc")) { 219 cfncn = crc; 220 pfncn = pcrc; 221 } else { 222 warnx("illegal argument to -a option"); 223 usage(); 224 } 225 } 226 break; 227 case 'c': 228 do_check = 1; 229 break; 230 case 'n': 231 normal = 1; 232 break; 233 case 'o': 234 if (hash) { 235 warnx("%s mutually exclusive with sum", 236 hash->hashname); 237 usage(); 238 } 239 if (!strcmp(optarg, "1")) { 240 cfncn = csum1; 241 pfncn = psum1; 242 } else if (!strcmp(optarg, "2")) { 243 cfncn = csum2; 244 pfncn = psum2; 245 } else { 246 warnx("illegal argument to -o option"); 247 usage(); 248 } 249 break; 250 case 'p': 251 if (hash == NULL) 252 requirehash("-p"); 253 pflag = 1; 254 break; 255 case 's': 256 if (hash == NULL) 257 requirehash("-s"); 258 nohashstdin = 1; 259 hash->stringfunc(optarg); 260 break; 261 case 't': 262 if (hash == NULL) 263 requirehash("-t"); 264 nohashstdin = 1; 265 hash->timetrialfunc(); 266 break; 267 case 'w': 268 check_warn = 1; 269 break; 270 case 'x': 271 if (hash == NULL) 272 requirehash("-x"); 273 nohashstdin = 1; 274 hash->testsuitefunc(); 275 break; 276 case '?': 277 default: 278 usage(); 279 } 280 argc -= optind; 281 argv += optind; 282 283 if (do_check) { 284 /* 285 * Verify checksums 286 */ 287 FILE *f; 288 char buf[BUFSIZ]; 289 char *s, *p_filename, *p_cksum; 290 int l_filename, l_cksum; 291 char filename[BUFSIZ]; 292 char cksum[BUFSIZ]; 293 int ok,cnt,badcnt; 294 295 rval = 0; 296 cnt = badcnt = 0; 297 298 if (argc == 0) { 299 f = fdopen(STDIN_FILENO, "r"); 300 } else { 301 f = fopen(argv[0], "r"); 302 } 303 if (f == NULL) 304 err(1, "Cannot read %s", 305 argc>0?argv[0]:"stdin"); 306 307 while(fgets(buf, sizeof(buf), f) != NULL) { 308 s=strrchr(buf, '\n'); 309 if (s) 310 *s = '\0'; 311 312 p_cksum = p_filename = NULL; 313 314 p_filename = strchr(buf, '('); 315 if (p_filename) { 316 /* 317 * Assume 'normal' output if there's a '(' 318 */ 319 p_filename += 1; 320 normal = 0; 321 322 p_cksum = strrchr(p_filename, ')'); 323 if (p_cksum == NULL) { 324 if (check_warn) 325 warnx("bogus format: %s. " 326 "Skipping...", 327 buf); 328 rval = 1; 329 continue; 330 } 331 p_cksum += 4; 332 333 l_cksum = strlen(p_cksum); 334 l_filename = p_cksum - p_filename - 4; 335 336 /* Sanity check, and find proper hash if 337 * it's not the same as the current program 338 */ 339 if (hash == NULL || 340 strncmp(buf, hash->hashname, 341 strlen(hash->hashname)) != 0) { 342 /* 343 * Search proper hash 344 */ 345 struct hash *nhash; 346 347 for (nhash = hashes ; 348 nhash->hashname != NULL; 349 nhash++) 350 if (strncmp(buf, 351 nhash->hashname, 352 strlen(nhash->hashname)) == 0) 353 break; 354 355 356 if (nhash->hashname == NULL) { 357 if (check_warn) 358 warnx("unknown hash: %s", 359 buf); 360 rval = 1; 361 continue; 362 } else { 363 hash = nhash; 364 } 365 } 366 367 } else { 368 if (hash) { 369 /* 370 * 'normal' output, no (ck)sum 371 */ 372 normal = 1; 373 374 p_cksum = buf; 375 p_filename = strchr(buf, ' '); 376 if (p_filename == NULL) { 377 if (check_warn) 378 warnx("no filename in %s? " 379 "Skipping...", buf); 380 rval = 1; 381 continue; 382 } 383 p_filename++; 384 l_filename = strlen(p_filename); 385 l_cksum = p_filename - buf - 1; 386 } else { 387 /* 388 * sum/cksum output format 389 */ 390 p_cksum = buf; 391 s=strchr(p_cksum, ' '); 392 if (s == NULL) { 393 if (check_warn) 394 warnx("bogus format: %s." 395 " Skipping...", 396 buf); 397 rval = 1; 398 continue; 399 } 400 l_cksum = s - p_cksum; 401 402 p_filename = strrchr(buf, ' '); 403 if (p_filename == NULL) { 404 if (check_warn) 405 warnx("no filename in %s?" 406 " Skipping...", 407 buf); 408 rval = 1; 409 continue; 410 } 411 p_filename++; 412 l_filename = strlen(p_filename); 413 } 414 } 415 416 strlcpy(filename, p_filename, l_filename+1); 417 strlcpy(cksum, p_cksum, l_cksum+1); 418 419 if (hash) { 420 if (access(filename, R_OK) == 0 421 && strcmp(cksum, hash->filefunc(filename, NULL)) == 0) 422 ok = 1; 423 else 424 ok = 0; 425 } else { 426 if ((fd = open(filename, O_RDONLY, 0)) < 0) { 427 if (check_warn) 428 warn("%s", filename); 429 rval = 1; 430 ok = 0; 431 } else { 432 if (cfncn(fd, &val, &len)) 433 ok = 0; 434 else { 435 u_int32_t should_val; 436 437 should_val = 438 strtoul(cksum, NULL, 10); 439 if (val == should_val) 440 ok = 1; 441 else 442 ok = 0; 443 } 444 } 445 } 446 447 if (! ok) { 448 if (hash) 449 printf("(%s) ", hash->hashname); 450 printf("%s: FAILED\n", filename); 451 badcnt++; 452 } 453 cnt++; 454 455 } 456 fclose(f); 457 458 if (badcnt > 0) 459 rval = 1; 460 461 } else { 462 /* 463 * Calculate checksums 464 */ 465 466 fd = STDIN_FILENO; 467 fn = NULL; 468 rval = 0; 469 do { 470 if (*argv) { 471 fn = *argv++; 472 if (hash != NULL) { 473 if (hash_digest_file(fn, hash, normal)) { 474 warn("%s", fn); 475 rval = 1; 476 } 477 continue; 478 } 479 if ((fd = open(fn, O_RDONLY, 0)) < 0) { 480 warn("%s", fn); 481 rval = 1; 482 continue; 483 } 484 } else if (hash && !nohashstdin) { 485 hash->filterfunc(pflag); 486 } 487 488 if (hash == NULL) { 489 if (cfncn(fd, &val, &len)) { 490 warn("%s", fn ? fn : "stdin"); 491 rval = 1; 492 } else 493 pfncn(fn, val, len); 494 (void)close(fd); 495 } 496 } while (*argv); 497 } 498 exit(rval); 499 } 500 501 int 502 hash_digest_file(char *fn, struct hash *hash, int normal) 503 { 504 char *cp; 505 506 cp = hash->filefunc(fn, NULL); 507 if (cp == NULL) 508 return 1; 509 510 if (normal) 511 printf("%s %s\n", cp, fn); 512 else 513 printf("%s (%s) = %s\n", hash->hashname, fn, cp); 514 515 free(cp); 516 517 return 0; 518 } 519 520 void 521 requirehash(const char *flg) 522 { 523 warnx("%s flag requires `md2', `md4', `md5', `sha1', or `rmd160'", 524 flg); 525 usage(); 526 } 527 528 void 529 usage(void) 530 { 531 532 (void)fprintf(stderr, "usage: cksum [-nw] [-a algorithm | -c file ]\n\t\t| [-o 1 | 2]] [file ...]\n"); 533 (void)fprintf(stderr, " sum [-c] [file ...]\n"); 534 (void)fprintf(stderr, 535 " md2 [-n] [-p | -t | -x | -s string] [file ...]\n"); 536 (void)fprintf(stderr, 537 " md4 [-n] [-p | -t | -x | -s string] [file ...]\n"); 538 (void)fprintf(stderr, 539 " md5 [-n] [-p | -t | -x | -s string] [file ...]\n"); 540 (void)fprintf(stderr, 541 " sha1 [-n] [-p | -t | -x | -s string] [file ...]\n"); 542 (void)fprintf(stderr, 543 " rmd160 [-n] [-p | -t | -x | -s string] [file ...]\n"); 544 exit(1); 545 } 546
Indexes created Tue Sep 23 23:09:58 GMT 2025