1 /*
2 * Copyright (c) 2013 Damien Miller <djm@mindrot.org>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 /* $OpenBSD$ */
18
19 #include "includes.h"
20
21 #include <sys/types.h>
22 #ifdef HAVE_SYS_STATVFS_H
23 # include <sys/statvfs.h>
24 #endif
25 #include <stdio.h>
26 #include <string.h>
27 #include <errno.h>
28
29 static void
usage(void)30 usage(void)
31 {
32 fprintf(stderr, "check-setuid [path]\n");
33 exit(1);
34 }
35
36 int
main(int argc,char ** argv)37 main(int argc, char **argv)
38 {
39 const char *path = ".";
40 struct statvfs sb;
41
42 if (argc > 2)
43 usage();
44 else if (argc == 2)
45 path = argv[1];
46
47 if (statvfs(path, &sb) != 0) {
48 /* Don't return an error if the host doesn't support statvfs */
49 if (errno == ENOSYS)
50 return 0;
51 fprintf(stderr, "statvfs for \"%s\" failed: %s\n",
52 path, strerror(errno));
53 }
54 return (sb.f_flag & ST_NOSUID) ? 1 : 0;
55 }
56
57
58