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 * 4. 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
30#include <sys/cdefs.h>
31__FBSDID("$FreeBSD$");
32
33#include <sys/param.h>
34
35#include <err.h>
36#include <stdio.h>
37#include <stdlib.h>
38#include <unistd.h>
39
40static void usage(void) __dead2;
41
42int
43main(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
76static void
77usage(void)
78{
79
80	(void)fprintf(stderr, "usage: realpath [-q] [path ...]\n");
81  	exit(1);
82}
83