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