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 <stdlib.h>
26 #include <stdio.h>
27 #include <string.h>
28 #include <errno.h>
29
30 static void
usage(void)31 usage(void)
32 {
33 fprintf(stderr, "check-setuid [path]\n");
34 exit(1);
35 }
36
37 int
main(int argc,char ** argv)38 main(int argc, char **argv)
39 {
40 const char *path = ".";
41 struct statvfs sb;
42
43 if (argc > 2)
44 usage();
45 else if (argc == 2)
46 path = argv[1];
47
48 if (statvfs(path, &sb) != 0) {
49 /* Don't return an error if the host doesn't support statvfs */
50 if (errno == ENOSYS)
51 return 0;
52 fprintf(stderr, "statvfs for \"%s\" failed: %s\n",
53 path, strerror(errno));
54 }
55 return (sb.f_flag & ST_NOSUID) ? 1 : 0;
56 }
57
58
59