1 /*
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * From: @(#)getmntinfo.c 8.1 (Berkeley) 6/4/93
30 */
31
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD: stable/12/lib/libc/gen/getmntinfo-compat11.c 335898 2018-07-03 17:31:45Z jhb $");
34
35 #include <sys/param.h>
36 #include <sys/ucred.h>
37 #define _WANT_FREEBSD11_STATFS
38 #include <sys/mount.h>
39 #include <stdlib.h>
40 #include "gen-compat.h"
41
42 /*
43 * Return information about mounted filesystems.
44 */
45 int
freebsd11_getmntinfo(struct freebsd11_statfs ** mntbufp,int flags)46 freebsd11_getmntinfo(struct freebsd11_statfs **mntbufp, int flags)
47 {
48 static struct freebsd11_statfs *mntbuf;
49 static int mntsize;
50 static long bufsize;
51
52 if (mntsize <= 0 &&
53 (mntsize = freebsd11_getfsstat(0, 0, MNT_NOWAIT)) < 0)
54 return (0);
55 if (bufsize > 0 &&
56 (mntsize = freebsd11_getfsstat(mntbuf, bufsize, flags)) < 0)
57 return (0);
58 while (bufsize <= mntsize * sizeof(struct freebsd11_statfs)) {
59 if (mntbuf)
60 free(mntbuf);
61 bufsize = (mntsize + 1) * sizeof(struct freebsd11_statfs);
62 if ((mntbuf = (struct freebsd11_statfs *)malloc(bufsize)) == 0)
63 return (0);
64 if ((mntsize = freebsd11_getfsstat(mntbuf, bufsize, flags)) < 0)
65 return (0);
66 }
67 *mntbufp = mntbuf;
68 return (mntsize);
69 }
70
71 __sym_compat(getmntinfo, freebsd11_getmntinfo, FBSD_1.0);
72