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
28 * pathchk -- check pathnames
30 * Check whether files could be created with the names specified on the
31 * command line. If -p is specified, check whether the pathname is portable
32 * to all POSIX systems.
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
38 #include <sys/types.h>
49 static int check(const char *);
50 static int portable(const char *);
51 static void usage(void);
53 static int pflag; /* Perform portability checks */
54 static int Pflag; /* Check for empty paths, leading '-' */
57 main(int argc, char *argv[])
62 while ((ch = getopt(argc, argv, "pP")) > 0) {
82 while ((arg = *argv++) != NULL)
92 fprintf(stderr, "usage: pathchk [-p] pathname ...\n");
97 check(const char *path)
100 long complen, namemax, pathmax, svnamemax;
102 char *end, *p, *pathd;
104 if ((pathd = strdup(path)) == NULL)
109 if (Pflag && *p == '\0') {
110 warnx("%s: empty pathname", path);
113 if ((Pflag || pflag) && (*p == '-' || strstr(p, "/-") != NULL)) {
114 warnx("%s: contains a component starting with '-'", path);
120 namemax = pathconf(*p == '/' ? "/" : ".", _PC_NAME_MAX);
121 if (namemax == -1 && errno != 0)
124 namemax = _POSIX_NAME_MAX;
128 complen = (long)strcspn(p, "/");
133 if (namemax != -1 && complen > namemax) {
134 warnx("%s: %s: component too long (limit %ld)", path,
139 if (!pflag && stat(pathd, &sb) == -1 && errno != ENOENT) {
140 warn("%s: %.*s", path, (int)(strlen(pathd) -
141 complen - 1), pathd);
145 if (pflag && !portable(p)) {
146 warnx("%s: %s: component contains non-portable "
147 "character", path, p);
157 namemax = pathconf(pathd, _PC_NAME_MAX);
158 if (namemax == -1 && errno != 0)
168 pathmax = pathconf(path, _PC_PATH_MAX);
169 if (pathmax == -1 && errno != 0)
172 pathmax = _POSIX_PATH_MAX;
173 if (pathmax != -1 && strlen(path) >= (size_t)pathmax) {
174 warnx("%s: path too long (limit %ld)", path, pathmax - 1);
186 * Check whether a path component contains only portable characters.
189 portable(const char *path)
191 static const char charset[] =
192 "abcdefghijklmnopqrstuvwxyz"
193 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
197 s = strspn(path, charset);