2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1991, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
34 static char const copyright[] =
35 "@(#) Copyright (c) 1991, 1993, 1994\n\
36 The Regents of the University of California. All rights reserved.\n";
40 static char sccsid[] = "@(#)pwd.c 8.3 (Berkeley) 4/1/94";
43 #include <sys/cdefs.h>
44 __FBSDID("$FreeBSD$");
46 #include <sys/param.h>
48 #include <sys/types.h>
56 static char *getcwd_logical(void);
60 main(int argc, char *argv[])
67 while ((ch = getopt(argc, argv, "LP")) != -1)
86 * If we're trying to find the logical current directory and that
87 * fails, behave as if -P was specified.
89 if ((!physical && (p = getcwd_logical()) != NULL) ||
90 (p = getcwd(NULL, 0)) != NULL)
102 (void)fprintf(stderr, "usage: pwd [-L | -P]\n");
113 * Check that $PWD is an absolute logical pathname referring to
114 * the current working directory.
116 if ((pwd = getenv("PWD")) != NULL && *pwd == '/') {
117 if (stat(pwd, &lg) == -1 || stat(".", &phy) == -1)
119 if (lg.st_dev == phy.st_dev && lg.st_ino == phy.st_ino)