cksum.c revision 1.19
1 /* $NetBSD: cksum.c,v 1.19 2003/12/20 23:41:38 kleink 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 #include <sys/cdefs.h> 71 #if defined(__COPYRIGHT) && !defined(lint) 72 __COPYRIGHT("@(#) Copyright (c) 1991, 1993\n\ 73 The Regents of the University of California. All rights reserved.\n"); 74 #endif /* not lint */ 75 76 #if defined(__RCSID) && !defined(lint) 77 #if 0 78 static char sccsid[] = "@(#)cksum.c 8.2 (Berkeley) 4/28/95"; 79 #endif 80 __RCSID("$NetBSD: cksum.c,v 1.19 2003/12/20 23:41:38 kleink Exp $"); 81 #endif /* not lint */ 82 83 #include <sys/cdefs.h> 84 #include <sys/types.h> 85 86 #include <err.h> 87 #include <errno.h> 88 #include <fcntl.h> 89 #include <locale.h> 90 #include <md5.h> 91 #include <md4.h> 92 #include <md2.h> 93 #include <sha1.h> 94 #include <rmd160.h> 95 #include <stdio.h> 96 #include <stdlib.h> 97 #include <string.h> 98 #include <unistd.h> 99 100 #include "extern.h" 101 102 #define HASH_MD2 0 103 #define HASH_MD4 1 104 #define HASH_MD5 2 105 #define HASH_SHA1 3 106 #define HASH_RMD160 4 107 108 typedef char *(*_filefunc)(const char *, char *); 109 110 struct hash { 111 const char *progname; 112 const char *hashname; 113 void (*stringfunc)(const char *); 114 void (*timetrialfunc)(void); 115 void (*testsuitefunc)(void); 116 void (*filterfunc)(int); 117 char *(*filefunc)(const char *, char *); 118 } hashes[] = { 119 { "md2", "MD2", 120 MD2String, MD2TimeTrial, MD2TestSuite, 121 MD2Filter, MD2File }, 122 { "md4", "MD4", 123 MD4String, MD4TimeTrial, MD4TestSuite, 124 MD4Filter, MD4File }, 125 { "md5", "MD5", 126 MD5String, MD5TimeTrial, MD5TestSuite, 127 MD5Filter, MD5File }, 128 { "sha1", "SHA1", 129 SHA1String, SHA1TimeTrial, SHA1TestSuite, 130 SHA1Filter, (_filefunc) SHA1File }, 131 { "rmd160", "RMD160", 132 RMD160String, RMD160TimeTrial, RMD160TestSuite, 133 RMD160Filter, (_filefunc) RMD160File }, 134 { NULL } 135 }; 136 137 int main __P((int, char **)); 138 int hash_digest_file __P((char *, struct hash *, int)); 139 void requirehash __P((const char *)); 140 void usage __P((void)); 141 142 int 143 main(argc, argv) 144 int argc; 145 char **argv; 146 { 147 register int ch, fd, rval, dosum, pflag, nohashstdin; 148 u_int32_t val; 149 off_t len; 150 char *fn; 151 const char *progname; 152 int (*cfncn) __P((int, u_int32_t *, off_t *)); 153 void (*pfncn) __P((char *, u_int32_t, off_t)); 154 struct hash *hash; 155 int normal; 156 157 cfncn = NULL; 158 pfncn = NULL; 159 dosum = pflag = nohashstdin = 0; 160 normal = 0; 161 162 setlocale(LC_ALL, ""); 163 164 progname = getprogname(); 165 166 for (hash = hashes; hash->hashname != NULL; hash++) 167 if (strcmp(progname, hash->progname) == 0) 168 break; 169 170 if (hash->hashname == NULL) { 171 hash = NULL; 172 173 if (!strcmp(progname, "sum")) { 174 dosum = 1; 175 cfncn = csum1; 176 pfncn = psum1; 177 } else { 178 cfncn = crc; 179 pfncn = pcrc; 180 } 181 } 182 183 while ((ch = getopt(argc, argv, "mno:ps:tx12456")) != -1) 184 switch(ch) { 185 case '2': 186 if (dosum) { 187 warnx("sum mutually exclusive with md2"); 188 usage(); 189 } 190 hash = &hashes[HASH_MD2]; 191 break; 192 case '4': 193 if (dosum) { 194 warnx("sum mutually exclusive with md4"); 195 usage(); 196 } 197 hash = &hashes[HASH_MD4]; 198 break; 199 case 'm': 200 case '5': 201 if (dosum) { 202 warnx("sum mutually exclusive with md5"); 203 usage(); 204 } 205 hash = &hashes[HASH_MD5]; 206 break; 207 case '1': 208 if (dosum) { 209 warnx("sum mutually exclusive with sha1"); 210 usage(); 211 } 212 hash = &hashes[HASH_SHA1]; 213 break; 214 case '6': 215 if (dosum) { 216 warnx("sum mutually exclusive with rmd160"); 217 usage(); 218 } 219 hash = &hashes[HASH_RMD160]; 220 break; 221 case 'n': 222 normal = 1; 223 break; 224 case 'o': 225 if (hash) { 226 warnx("%s mutually exclusive with sum", 227 hash->hashname); 228 usage(); 229 } 230 if (!strcmp(optarg, "1")) { 231 cfncn = csum1; 232 pfncn = psum1; 233 } else if (!strcmp(optarg, "2")) { 234 cfncn = csum2; 235 pfncn = psum2; 236 } else { 237 warnx("illegal argument to -o option"); 238 usage(); 239 } 240 break; 241 case 'p': 242 if (hash == NULL) 243 requirehash("-p"); 244 pflag = 1; 245 break; 246 case 's': 247 if (hash == NULL) 248 requirehash("-s"); 249 nohashstdin = 1; 250 hash->stringfunc(optarg); 251 break; 252 case 't': 253 if (hash == NULL) 254 requirehash("-t"); 255 nohashstdin = 1; 256 hash->timetrialfunc(); 257 break; 258 case 'x': 259 if (hash == NULL) 260 requirehash("-x"); 261 nohashstdin = 1; 262 hash->testsuitefunc(); 263 break; 264 case '?': 265 default: 266 usage(); 267 } 268 argc -= optind; 269 argv += optind; 270 271 fd = STDIN_FILENO; 272 fn = NULL; 273 rval = 0; 274 do { 275 if (*argv) { 276 fn = *argv++; 277 if (hash != NULL) { 278 if (hash_digest_file(fn, hash, normal)) { 279 warn("%s", fn); 280 rval = 1; 281 } 282 continue; 283 } 284 if ((fd = open(fn, O_RDONLY, 0)) < 0) { 285 warn("%s", fn); 286 rval = 1; 287 continue; 288 } 289 } else if (hash && !nohashstdin) { 290 hash->filterfunc(pflag); 291 } 292 293 if (hash == NULL) { 294 if (cfncn(fd, &val, &len)) { 295 warn("%s", fn ? fn : "stdin"); 296 rval = 1; 297 } else 298 pfncn(fn, val, len); 299 (void)close(fd); 300 } 301 } while (*argv); 302 exit(rval); 303 } 304 305 int 306 hash_digest_file(fn, hash, normal) 307 char *fn; 308 struct hash *hash; 309 int normal; 310 { 311 char buf[41], *cp; 312 313 cp = hash->filefunc(fn, buf); 314 if (cp == NULL) 315 return (1); 316 317 if (normal) 318 printf("%s %s\n", cp, fn); 319 else 320 printf("%s (%s) = %s\n", hash->hashname, fn, cp); 321 return (0); 322 } 323 324 void 325 requirehash(flg) 326 const char *flg; 327 { 328 warnx("%s flag requires `md2', `md4', `md5', `sha1', or `rmd160'", 329 flg); 330 usage(); 331 } 332 333 void 334 usage() 335 { 336 337 (void)fprintf(stderr, "usage: cksum [-m | [-o 1 | 2]] [file ...]\n"); 338 (void)fprintf(stderr, " sum [file ...]\n"); 339 (void)fprintf(stderr, 340 " md2 [-n] [-p | -t | -x | -s string] [file ...]\n"); 341 (void)fprintf(stderr, 342 " md4 [-n] [-p | -t | -x | -s string] [file ...]\n"); 343 (void)fprintf(stderr, 344 " md5 [-n] [-p | -t | -x | -s string] [file ...]\n"); 345 (void)fprintf(stderr, 346 " sha1 [-n] [-p | -t | -x | -s string] [file ...]\n"); 347 (void)fprintf(stderr, 348 " rmd160 [-n] [-p | -t | -x | -s string] [file ...]\n"); 349 exit(1); 350 } 351
Indexes created Tue Sep 23 22:09:46 GMT 2025