1 /* $NetBSD: cksum.c,v 1.10 1997/10/17 11:36:59 lukem 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 #ifndef 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 #ifndef lint 47 #if 0 48 static char sccsid[] = "@(#)cksum.c 8.2 (Berkeley) 4/28/95"; 49 #endif 50 __RCSID("$NetBSD: cksum.c,v 1.10 1997/10/17 11:36:59 lukem 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 main __P((int, char **)); 69 int md5_digest_file __P((char *)); 70 void requiremd5 __P((const char *)); 71 void usage __P((void)); 72 73 int 74 main(argc, argv) 75 int argc; 76 char **argv; 77 { 78 register int ch, fd, rval, domd5, dosum, pflag, nomd5stdin; 79 u_int32_t len, val; 80 char *fn; 81 int (*cfncn) __P((int, u_int32_t *, u_int32_t *)); 82 void (*pfncn) __P((char *, u_int32_t, u_int32_t)); 83 extern char *__progname; 84 85 cfncn = NULL; 86 pfncn = NULL; 87 dosum = domd5 = pflag = nomd5stdin = 0; 88 89 setlocale(LC_ALL, ""); 90 91 if (!strcmp(__progname, "md5")) 92 domd5 = 1; 93 else if (!strcmp(__progname, "sum")) { 94 dosum = 1; 95 cfncn = csum1; 96 pfncn = psum1; 97 } else { 98 cfncn = crc; 99 pfncn = pcrc; 100 } 101 102 while ((ch = getopt(argc, argv, "mo:ps:tx")) != -1) 103 switch(ch) { 104 case 'm': 105 if (dosum) { 106 warnx("sum mutually exclusive with md5"); 107 usage(); 108 } 109 domd5 = 1; 110 break; 111 case 'o': 112 if (domd5) { 113 warnx("md5 mutually exclusive with sum"); 114 usage(); 115 } 116 if (!strcmp(optarg, "1")) { 117 cfncn = csum1; 118 pfncn = psum1; 119 } else if (!strcmp(optarg, "2")) { 120 cfncn = csum2; 121 pfncn = psum2; 122 } else { 123 warnx("illegal argument to -o option"); 124 usage(); 125 } 126 break; 127 case 'p': 128 if (!domd5) 129 requiremd5("-p"); 130 pflag = 1; 131 break; 132 case 's': 133 if (!domd5) 134 requiremd5("-s"); 135 nomd5stdin = 1; 136 MDString(optarg); 137 break; 138 case 't': 139 if (!domd5) 140 requiremd5("-t"); 141 MDTimeTrial(); 142 nomd5stdin = 1; 143 break; 144 case 'x': 145 if (!domd5) 146 requiremd5("-x"); 147 MDTestSuite(); 148 nomd5stdin = 1; 149 break; 150 case '?': 151 default: 152 usage(); 153 } 154 argc -= optind; 155 argv += optind; 156 157 fd = STDIN_FILENO; 158 fn = NULL; 159 rval = 0; 160 do { 161 if (*argv) { 162 fn = *argv++; 163 if (domd5) { 164 if (md5_digest_file(fn)) { 165 warn("%s", fn); 166 rval = 1; 167 } 168 continue; 169 } 170 if ((fd = open(fn, O_RDONLY, 0)) < 0) { 171 warn("%s", fn); 172 rval = 1; 173 continue; 174 } 175 } else if (domd5 && !nomd5stdin) 176 MDFilter(pflag); 177 178 if (!domd5) { 179 if (cfncn(fd, &val, &len)) { 180 warn("%s", fn ? fn : "stdin"); 181 rval = 1; 182 } else 183 pfncn(fn, val, len); 184 (void)close(fd); 185 } 186 } while (*argv); 187 exit(rval); 188 } 189 190 int 191 md5_digest_file(fn) 192 char *fn; 193 { 194 char buf[33], *cp; 195 196 cp = MD5File(fn, buf); 197 if (cp == NULL) 198 return (1); 199 200 printf("MD5 (%s) = %s\n", fn, cp); 201 return (0); 202 } 203 204 void 205 requiremd5(flg) 206 const char *flg; 207 { 208 warnx("%s flag requires `md5' or -m", flg); 209 usage(); 210 } 211 212 void 213 usage() 214 { 215 216 (void)fprintf(stderr, "usage: cksum [-m | [-o 1 | 2]] [file ...]\n"); 217 (void)fprintf(stderr, " sum [file ...]\n"); 218 (void)fprintf(stderr, 219 " md5 [-p | -t | -x | -s string] [file ...]\n"); 220 exit(1); 221 } 222