GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/gen/getmntinfo.c Lines: 0 14 0.0 %
Date: 2017-11-13 Branches: 0 14 0.0 %

Line Branch Exec Source
1
/*	$OpenBSD: getmntinfo.c,v 1.10 2015/09/14 16:09:13 tedu Exp $ */
2
/*
3
 * Copyright (c) 1989, 1993
4
 *	The Regents of the University of California.  All rights reserved.
5
 *
6
 * Redistribution and use in source and binary forms, with or without
7
 * modification, are permitted provided that the following conditions
8
 * are met:
9
 * 1. Redistributions of source code must retain the above copyright
10
 *    notice, this list of conditions and the following disclaimer.
11
 * 2. Redistributions in binary form must reproduce the above copyright
12
 *    notice, this list of conditions and the following disclaimer in the
13
 *    documentation and/or other materials provided with the distribution.
14
 * 3. Neither the name of the University nor the names of its contributors
15
 *    may be used to endorse or promote products derived from this software
16
 *    without specific prior written permission.
17
 *
18
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28
 * SUCH DAMAGE.
29
 */
30
31
#include <sys/types.h>
32
#include <sys/mount.h>
33
#include <stdlib.h>
34
35
/*
36
 * Return information about mounted filesystems.
37
 */
38
int
39
getmntinfo(struct statfs **mntbufp, int flags)
40
{
41
	static struct statfs *mntbuf;
42
	static int mntsize;
43
	static size_t bufsize;
44
45
	if (mntsize <= 0 && (mntsize = getfsstat(0, 0, MNT_NOWAIT)) < 0)
46
		return (0);
47
	if (bufsize > 0 && (mntsize = getfsstat(mntbuf, bufsize, flags)) < 0)
48
		return (0);
49
	while (bufsize <= mntsize * sizeof(struct statfs)) {
50
		free(mntbuf);
51
		bufsize = (mntsize + 1) * sizeof(struct statfs);
52
		if ((mntbuf = malloc(bufsize)) == 0) {
53
			bufsize = 0;
54
			return (0);
55
		}
56
		if ((mntsize = getfsstat(mntbuf, bufsize, flags)) < 0)
57
			return (0);
58
	}
59
	*mntbufp = mntbuf;
60
	return (mntsize);
61
}