Commit | Line | Data |
---|---|---|
e5afe6d2 KM |
1 | /* |
2 | * Copyright (c) 1989 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
c0567266 KB |
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. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
e5afe6d2 KM |
32 | */ |
33 | ||
34 | #if defined(LIBC_SCCS) && !defined(lint) | |
af359dea | 35 | static char sccsid[] = "@(#)getmntinfo.c 6.4 (Berkeley) 2/23/91"; |
e5afe6d2 KM |
36 | #endif /* LIBC_SCCS and not lint */ |
37 | ||
38 | #include <sys/types.h> | |
39 | #include <sys/mount.h> | |
c5980113 | 40 | #include <stdlib.h> |
e5afe6d2 KM |
41 | |
42 | /* | |
43 | * Return information about mounted filesystems. | |
44 | */ | |
45 | int | |
e14902d3 | 46 | getmntinfo(mntbufp, flags) |
e5afe6d2 | 47 | struct statfs **mntbufp; |
e14902d3 | 48 | int flags; |
e5afe6d2 KM |
49 | { |
50 | static struct statfs *mntbuf; | |
c5980113 DS |
51 | static int mntsize; |
52 | static long bufsize; | |
e5afe6d2 | 53 | |
e14902d3 | 54 | if (mntsize <= 0 && (mntsize = getfsstat(0, 0, MNT_NOWAIT)) < 0) |
e5afe6d2 | 55 | return (0); |
e14902d3 | 56 | if (bufsize > 0 && (mntsize = getfsstat(mntbuf, bufsize, flags)) < 0) |
e5afe6d2 KM |
57 | return (0); |
58 | while (bufsize <= mntsize * sizeof(struct statfs)) { | |
59 | if (mntbuf) | |
60 | free(mntbuf); | |
61 | bufsize = (mntsize + 1) * sizeof(struct statfs); | |
62 | if ((mntbuf = (struct statfs *)malloc(bufsize)) == 0) | |
63 | return (0); | |
e14902d3 | 64 | if ((mntsize = getfsstat(mntbuf, bufsize, flags)) < 0) |
e5afe6d2 KM |
65 | return (0); |
66 | } | |
67 | *mntbufp = mntbuf; | |
68 | return (mntsize); | |
69 | } |