2 * Copyright (c) 2002 Tim J. Robbins.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: head/usr.bin/pathchk/pathchk.c 256800 2013-10-20 20:10:31Z jilles $
30 * pathchk -- check pathnames
32 * Check whether files could be created with the names specified on the
33 * command line. If -p is specified, check whether the pathname is portable
34 * to all POSIX systems.
37 #include <sys/types.h>
48 static int check(const char *);
49 static int portable(const char *);
50 static void usage(void);
52 static int pflag; /* Perform portability checks */
53 static int Pflag; /* Check for empty paths, leading '-' */
56 main(int argc, char *argv[])
61 while ((ch = getopt(argc, argv, "pP")) > 0) {
81 while ((arg = *argv++) != NULL)
91 fprintf(stderr, "usage: pathchk [-pP] pathname ...\n");
96 check(const char *path)
99 long complen, namemax, pathmax, svnamemax;
101 char *end, *p, *pathd;
103 if ((pathd = strdup(path)) == NULL)
108 if (Pflag && *p == '\0') {
109 warnx("%s: empty pathname", path);
112 if ((Pflag || pflag) && (*p == '-' || strstr(p, "/-") != NULL)) {
113 warnx("%s: contains a component starting with '-'", path);
119 namemax = pathconf(*p == '/' ? "/" : ".", _PC_NAME_MAX);
120 if (namemax == -1 && errno != 0)
123 namemax = _POSIX_NAME_MAX;
127 complen = (long)strcspn(p, "/");
132 if (namemax != -1 && complen > namemax) {
133 warnx("%s: %s: component too long (limit %ld)", path,
138 if (!pflag && stat(pathd, &sb) == -1 && errno != ENOENT) {
139 warn("%s: %.*s", path, (int)(strlen(pathd) -
140 complen - 1), pathd);
144 if (pflag && !portable(p)) {
145 warnx("%s: %s: component contains non-portable "
146 "character", path, p);
156 namemax = pathconf(pathd, _PC_NAME_MAX);
157 if (namemax == -1 && errno != 0)
167 pathmax = pathconf(path, _PC_PATH_MAX);
168 if (pathmax == -1 && errno != 0)
171 pathmax = _POSIX_PATH_MAX;
172 if (pathmax != -1 && strlen(path) >= (size_t)pathmax) {
173 warnx("%s: path too long (limit %ld)", path, pathmax - 1);
185 * Check whether a path component contains only portable characters.
188 portable(const char *path)
190 static const char charset[] =
191 "abcdefghijklmnopqrstuvwxyz"
192 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
196 s = strspn(path, charset);