1 /* $NetBSD: cksum.c,v 1.9 1997/06/26 23:24:01 kleink 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 #ifndef lint 41 static char copyright[] = 42 "@(#) Copyright (c) 1991, 1993\n\ 43 The Regents of the University of California. All rights reserved.\n"; 44 #endif /* not lint */ 45 46 #ifndef lint 47 #if 0 48 static char sccsid[] = "@(#)cksum.c 8.2 (Berkeley) 4/28/95"; 49 #endif 50 static char rcsid[] = "$NetBSD: cksum.c,v 1.9 1997/06/26 23:24:01 kleink 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 <stdio.h> 62 #include <stdlib.h> 63 #include <string.h> 64 #include <unistd.h> 65 66 #include "extern.h" 67 68 int md5_digest_file __P((char *)); 69 void requiremd5 __P((const char *)); 70 void usage __P((void)); 71 72 int 73 main(argc, argv) 74 int argc; 75 char **argv; 76 { 77 register int ch, fd, rval, domd5, dosum, pflag, nomd5stdin; 78 u_int32_t len, val; 79 char *fn; 80 int (*cfncn) __P((int, u_int32_t *, u_int32_t *)); 81 void (*pfncn) __P((char *, u_int32_t, u_int32_t)); 82 extern char *__progname; 83 84 dosum = domd5 = pflag = nomd5stdin = 0; 85 86 setlocale(LC_ALL, ""); 87 88 if (!strcmp(__progname, "md5")) 89 domd5 = 1; 90 else if (!strcmp(__progname, "sum")) { 91 dosum = 1; 92 cfncn = csum1; 93 pfncn = psum1; 94 } else { 95 cfncn = crc; 96 pfncn = pcrc; 97 } 98 99 while ((ch = getopt(argc, argv, "mo:ps:tx")) != -1) 100 switch(ch) { 101 case 'm': 102 if (dosum) { 103 warnx("sum mutually exclusive with md5"); 104 usage(); 105 } 106 domd5 = 1; 107 break; 108 case 'o': 109 if (domd5) { 110 warnx("md5 mutually exclusive with sum"); 111 usage(); 112 } 113 if (!strcmp(optarg, "1")) { 114 cfncn = csum1; 115 pfncn = psum1; 116 } else if (!strcmp(optarg, "2")) { 117 cfncn = csum2; 118 pfncn = psum2; 119 } else { 120 warnx("illegal argument to -o option"); 121 usage(); 122 } 123 break; 124 case 'p': 125 if (!domd5) 126 requiremd5("-p"); 127 pflag = 1; 128 break; 129 case 's': 130 if (!domd5) 131 requiremd5("-s"); 132 nomd5stdin = 1; 133 MDString(optarg); 134 break; 135 case 't': 136 if (!domd5) 137 requiremd5("-t"); 138 MDTimeTrial(); 139 nomd5stdin = 1; 140 break; 141 case 'x': 142 if (!domd5) 143 requiremd5("-x"); 144 MDTestSuite(); 145 nomd5stdin = 1; 146 break; 147 case '?': 148 default: 149 usage(); 150 } 151 argc -= optind; 152 argv += optind; 153 154 fd = STDIN_FILENO; 155 fn = NULL; 156 rval = 0; 157 do { 158 if (*argv) { 159 fn = *argv++; 160 if (domd5) { 161 if (md5_digest_file(fn)) { 162 warn("%s", fn); 163 rval = 1; 164 } 165 continue; 166 } 167 if ((fd = open(fn, O_RDONLY, 0)) < 0) { 168 warn("%s", fn); 169 rval = 1; 170 continue; 171 } 172 } else if (domd5 && !nomd5stdin) 173 MDFilter(pflag); 174 175 if (!domd5) { 176 if (cfncn(fd, &val, &len)) { 177 warn("%s", fn ? fn : "stdin"); 178 rval = 1; 179 } else 180 pfncn(fn, val, len); 181 (void)close(fd); 182 } 183 } while (*argv); 184 exit(rval); 185 } 186 187 int 188 md5_digest_file(fn) 189 char *fn; 190 { 191 char buf[33], *cp; 192 193 cp = MD5File(fn, buf); 194 if (cp == NULL) 195 return (1); 196 197 printf("MD5 (%s) = %s\n", fn, cp); 198 return (0); 199 } 200 201 void 202 requiremd5(flg) 203 const char *flg; 204 { 205 warnx("%s flag requires `md5' or -m", flg); 206 usage(); 207 } 208 209 void 210 usage() 211 { 212 213 (void)fprintf(stderr, "usage: cksum [-m | [-o 1 | 2]] [file ...]\n"); 214 (void)fprintf(stderr, " sum [file ...]\n"); 215 (void)fprintf(stderr, 216 " md5 [-p | -t | -x | -s string] [file ...]\n"); 217 exit(1); 218 } 219