1 /* $NetBSD: cksum.c,v 1.17 2002/10/18 20:30:13 atatat Exp $ */ 2 3 /*- 4 * Copyright (c) 1997 Jason R. Thorpe. All rights reserved. 5 * Copyright (c) 1991, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * James W. Williams of NASA Goddard Space Flight Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 */ 39 40 #include <sys/cdefs.h> 41 #if defined(__COPYRIGHT) && !defined(lint) 42 __COPYRIGHT("@(#) Copyright (c) 1991, 1993\n\ 43 The Regents of the University of California. All rights reserved.\n"); 44 #endif /* not lint */ 45 46 #if defined(__RCSID) && !defined(lint) 47 #if 0 48 static char sccsid[] = "@(#)cksum.c 8.2 (Berkeley) 4/28/95"; 49 #endif 50 __RCSID("$NetBSD: cksum.c,v 1.17 2002/10/18 20:30:13 atatat Exp $"); 51 #endif /* not lint */ 52 53 #include <sys/cdefs.h> 54 #include <sys/types.h> 55 56 #include <err.h> 57 #include <errno.h> 58 #include <fcntl.h> 59 #include <locale.h> 60 #include <md5.h> 61 #include <md4.h> 62 #include <md2.h> 63 #include <sha1.h> 64 #include <rmd160.h> 65 #include <stdio.h> 66 #include <stdlib.h> 67 #include <string.h> 68 #include <unistd.h> 69 70 #include "extern.h" 71 72 #define HASH_MD2 0 73 #define HASH_MD4 1 74 #define HASH_MD5 2 75 #define HASH_SHA1 3 76 #define HASH_RMD160 4 77 78 typedef char *(*_filefunc)(const char *, char *); 79 80 struct hash { 81 const char *progname; 82 const char *hashname; 83 void (*stringfunc)(const char *); 84 void (*timetrialfunc)(void); 85 void (*testsuitefunc)(void); 86 void (*filterfunc)(int); 87 char *(*filefunc)(const char *, char *); 88 } hashes[] = { 89 { "md2", "MD2", 90 MD2String, MD2TimeTrial, MD2TestSuite, 91 MD2Filter, MD2File }, 92 { "md4", "MD4", 93 MD4String, MD4TimeTrial, MD4TestSuite, 94 MD4Filter, MD4File }, 95 { "md5", "MD5", 96 MD5String, MD5TimeTrial, MD5TestSuite, 97 MD5Filter, MD5File }, 98 { "sha1", "SHA1", 99 SHA1String, SHA1TimeTrial, SHA1TestSuite, 100 SHA1Filter, (_filefunc) SHA1File }, 101 { "rmd160", "RMD160", 102 RMD160String, RMD160TimeTrial, RMD160TestSuite, 103 RMD160Filter, (_filefunc) RMD160File }, 104 { NULL } 105 }; 106 107 int main __P((int, char **)); 108 int hash_digest_file __P((char *, struct hash *, int)); 109 void requirehash __P((const char *)); 110 void usage __P((void)); 111 112 int 113 main(argc, argv) 114 int argc; 115 char **argv; 116 { 117 register int ch, fd, rval, dosum, pflag, nohashstdin; 118 u_int32_t len, val; 119 char *fn; 120 const char *progname; 121 int (*cfncn) __P((int, u_int32_t *, u_int32_t *)); 122 void (*pfncn) __P((char *, u_int32_t, u_int32_t)); 123 struct hash *hash; 124 int normal; 125 126 cfncn = NULL; 127 pfncn = NULL; 128 dosum = pflag = nohashstdin = 0; 129 normal = 0; 130 131 setlocale(LC_ALL, ""); 132 133 progname = getprogname(); 134 135 for (hash = hashes; hash->hashname != NULL; hash++) 136 if (strcmp(progname, hash->progname) == 0) 137 break; 138 139 if (hash->hashname == NULL) { 140 hash = NULL; 141 142 if (!strcmp(progname, "sum")) { 143 dosum = 1; 144 cfncn = csum1; 145 pfncn = psum1; 146 } else { 147 cfncn = crc; 148 pfncn = pcrc; 149 } 150 } 151 152 while ((ch = getopt(argc, argv, "mno:ps:tx12456")) != -1) 153 switch(ch) { 154 case '2': 155 if (dosum) { 156 warnx("sum mutually exclusive with md2"); 157 usage(); 158 } 159 hash = &hashes[HASH_MD2]; 160 break; 161 case '4': 162 if (dosum) { 163 warnx("sum mutually exclusive with md4"); 164 usage(); 165 } 166 hash = &hashes[HASH_MD4]; 167 break; 168 case 'm': 169 case '5': 170 if (dosum) { 171 warnx("sum mutually exclusive with md5"); 172 usage(); 173 } 174 hash = &hashes[HASH_MD5]; 175 break; 176 case '1': 177 if (dosum) { 178 warnx("sum mutually exclusive with sha1"); 179 usage(); 180 } 181 hash = &hashes[HASH_SHA1]; 182 break; 183 case '6': 184 if (dosum) { 185 warnx("sum mutually exclusive with rmd160"); 186 usage(); 187 } 188 hash = &hashes[HASH_RMD160]; 189 break; 190 case 'n': 191 normal = 1; 192 break; 193 case 'o': 194 if (hash) { 195 warnx("%s mutually exclusive with sum", 196 hash->hashname); 197 usage(); 198 } 199 if (!strcmp(optarg, "1")) { 200 cfncn = csum1; 201 pfncn = psum1; 202 } else if (!strcmp(optarg, "2")) { 203 cfncn = csum2; 204 pfncn = psum2; 205 } else { 206 warnx("illegal argument to -o option"); 207 usage(); 208 } 209 break; 210 case 'p': 211 if (hash == NULL) 212 requirehash("-p"); 213 pflag = 1; 214 break; 215 case 's': 216 if (hash == NULL) 217 requirehash("-s"); 218 nohashstdin = 1; 219 hash->stringfunc(optarg); 220 break; 221 case 't': 222 if (hash == NULL) 223 requirehash("-t"); 224 nohashstdin = 1; 225 hash->timetrialfunc(); 226 break; 227 case 'x': 228 if (hash == NULL) 229 requirehash("-x"); 230 nohashstdin = 1; 231 hash->testsuitefunc(); 232 break; 233 case '?': 234 default: 235 usage(); 236 } 237 argc -= optind; 238 argv += optind; 239 240 fd = STDIN_FILENO; 241 fn = NULL; 242 rval = 0; 243 do { 244 if (*argv) { 245 fn = *argv++; 246 if (hash != NULL) { 247 if (hash_digest_file(fn, hash, normal)) { 248 warn("%s", fn); 249 rval = 1; 250 } 251 continue; 252 } 253 if ((fd = open(fn, O_RDONLY, 0)) < 0) { 254 warn("%s", fn); 255 rval = 1; 256 continue; 257 } 258 } else if (hash && !nohashstdin) { 259 hash->filterfunc(pflag); 260 } 261 262 if (hash == NULL) { 263 if (cfncn(fd, &val, &len)) { 264 warn("%s", fn ? fn : "stdin"); 265 rval = 1; 266 } else 267 pfncn(fn, val, len); 268 (void)close(fd); 269 } 270 } while (*argv); 271 exit(rval); 272 } 273 274 int 275 hash_digest_file(fn, hash, normal) 276 char *fn; 277 struct hash *hash; 278 int normal; 279 { 280 char buf[41], *cp; 281 282 cp = hash->filefunc(fn, buf); 283 if (cp == NULL) 284 return (1); 285 286 if (normal) 287 printf("%s %s\n", cp, fn); 288 else 289 printf("%s (%s) = %s\n", hash->hashname, fn, cp); 290 return (0); 291 } 292 293 void 294 requirehash(flg) 295 const char *flg; 296 { 297 warnx("%s flag requires `md2', `md4', `md5', `sha1', or `rmd160'", 298 flg); 299 usage(); 300 } 301 302 void 303 usage() 304 { 305 306 (void)fprintf(stderr, "usage: cksum [-m | [-o 1 | 2]] [file ...]\n"); 307 (void)fprintf(stderr, " sum [file ...]\n"); 308 (void)fprintf(stderr, 309 " md2 [-n] [-p | -t | -x | -s string] [file ...]\n"); 310 (void)fprintf(stderr, 311 " md4 [-n] [-p | -t | -x | -s string] [file ...]\n"); 312 (void)fprintf(stderr, 313 " md5 [-n] [-p | -t | -x | -s string] [file ...]\n"); 314 (void)fprintf(stderr, 315 " sha1 [-n] [-p | -t | -x | -s string] [file ...]\n"); 316 (void)fprintf(stderr, 317 " rmd160 [-n] [-p | -t | -x | -s string] [file ...]\n"); 318 exit(1); 319 } 320