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
30 usage(void)
31 {
32 	fprintf(stderr, "check-setuid [path]\n");
33 	exit(1);
34 }
35 
36 int
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