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
29static void
30usage(void)
31{
32	fprintf(stderr, "check-setuid [path]\n");
33	exit(1);
34}
35
36int
37main(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