2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * James W. Williams of NASA Goddard Space Flight Center.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 static const char copyright[] =
35 "@(#) Copyright (c) 1991, 1993\n\
36 The Regents of the University of California. All rights reserved.\n";
41 static char sccsid[] = "@(#)cksum.c 8.2 (Berkeley) 4/28/95";
45 #include <sys/cdefs.h>
46 __FBSDID("$FreeBSD$");
48 #include <sys/types.h>
59 static void usage(void);
62 main(int argc, char **argv)
68 int (*cfncn)(int, uint32_t *, off_t *);
69 void (*pfncn)(char *, uint32_t, off_t);
71 if ((p = rindex(argv[0], '/')) == NULL)
75 if (!strcmp(p, "sum")) {
83 while ((ch = getopt(argc, argv, "o:")) != -1)
86 if (!strcmp(optarg, "1")) {
89 } else if (!strcmp(optarg, "2")) {
92 } else if (!strcmp(optarg, "3")) {
96 warnx("illegal argument to -o option");
114 if ((fd = open(fn, O_RDONLY, 0)) < 0) {
120 if (cfncn(fd, &val, &len)) {
121 warn("%s", fn ? fn : "stdin");
133 (void)fprintf(stderr, "usage: cksum [-o 1 | 2 | 3] [file ...]\n");
134 (void)fprintf(stderr, " sum [file ...]\n");