1 /*-
2 * Copyright (c) 1991, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: head/bin/realpath/realpath.c 223372 2011-06-21 19:34:57Z ru $
30 */
31
32
33 #include <sys/param.h>
34
35 #include <err.h>
36 #include <stdio.h>
37 #include <stdlib.h>
38 #include <unistd.h>
39
40 static void usage(void) __dead2;
41
42 int
main(int argc,char * argv[])43 main(int argc, char *argv[])
44 {
45 char buf[PATH_MAX];
46 char *p;
47 const char *path;
48 int ch, qflag, rval;
49
50 qflag = 0;
51 while ((ch = getopt(argc, argv, "q")) != -1) {
52 switch (ch) {
53 case 'q':
54 qflag = 1;
55 break;
56 case '?':
57 default:
58 usage();
59 }
60 }
61 argc -= optind;
62 argv += optind;
63 path = *argv != NULL ? *argv++ : ".";
64 rval = 0;
65 do {
66 if ((p = realpath(path, buf)) == NULL) {
67 if (!qflag)
68 warn("%s", path);
69 rval = 1;
70 } else
71 (void)printf("%s\n", p);
72 } while ((path = *argv++) != NULL);
73 exit(rval);
74 }
75
76 static void
usage(void)77 usage(void)
78 {
79
80 (void)fprintf(stderr, "usage: realpath [-q] [path ...]\n");
81 exit(1);
82 }
83