1/*	$OpenBSD: statvfs.c,v 1.2 2015/01/16 16:48:51 deraadt Exp $	*/
2
3/*
4 * Copyright (c) 2008 Otto Moerbeek <otto@drijf.net>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#include <sys/types.h>
20#include <sys/mount.h>
21#include <sys/statvfs.h>
22
23static void
24cvt_statfs_to_statvfs(const struct statfs *fsp, struct statvfs *vfsp)
25{
26	vfsp->f_bsize = fsp->f_iosize; /* XXX */
27	vfsp->f_frsize = fsp->f_bsize; /* XXX */
28
29	vfsp->f_blocks = fsp->f_blocks;
30	vfsp->f_bfree = fsp->f_bfree;
31	vfsp->f_bavail = fsp->f_bavail < 0 ? 0 : fsp->f_bavail;
32
33	vfsp->f_files = fsp->f_files;
34	vfsp->f_ffree = fsp->f_ffree;
35	vfsp->f_favail = fsp->f_favail < 0 ? 0 : fsp->f_favail;
36
37	vfsp->f_fsid = fsp->f_fsid.val[0]; /* XXX */
38	vfsp->f_flag = 0;
39	if (fsp->f_flags & MNT_RDONLY)
40		vfsp->f_flag |= ST_RDONLY;
41	if (fsp->f_flags & MNT_NOSUID)
42		vfsp->f_flag |= ST_NOSUID;
43	vfsp->f_namemax = fsp->f_namemax;
44}
45
46int
47fstatvfs(int fd, struct statvfs *p)
48{
49	struct statfs sb;
50	int ret;
51
52	ret = fstatfs(fd, &sb);
53	if (ret == 0)
54		cvt_statfs_to_statvfs(&sb, p);
55	return (ret);
56}
57
58int
59statvfs(const char *path, struct statvfs *p)
60{
61	struct statfs sb;
62	int ret;
63
64	ret = statfs(path, &sb);
65	if (ret == 0)
66		cvt_statfs_to_statvfs(&sb, p);
67	return (ret);
68}
69
70