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1 | /* <mntent.h> -- Utilities for reading/writing fstab, mtab, etc. |
2 | Copyright (C) 1995 Free Software Foundation, Inc. | |
3 | This file is part of the GNU C Library. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Library General Public License as | |
7 | published by the Free Software Foundation; either version 2 of the | |
8 | License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Library General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Library General Public | |
16 | License along with the GNU C Library; see the file COPYING.LIB. If | |
17 | not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
18 | Cambridge, MA 02139, USA. */ | |
19 | ||
20 | #ifndef _MNTENT_H | |
21 | #define _MNTENT_H 1 | |
22 | ||
23 | #include <features.h> | |
24 | #define __need_FILE | |
25 | #include <stdio.h> | |
26 | ||
27 | ||
28 | /* File listing canonical interesting mount points. */ | |
29 | #define _PATH_MNTTAB "/etc/fstab" | |
30 | #define MNTTAB _PATH_MNTTAB /* Deprecated alias. */ | |
31 | ||
32 | /* File listing currently active mount points. */ | |
33 | #define _PATH_MOUNTED "/var/run/mtab" | |
34 | #define MOUNTED _PATH_MOUNTED /* Deprecated alias. */ | |
35 | ||
36 | ||
37 | __BEGIN_DECLS | |
38 | ||
39 | /* Structure describing a mount table entry. */ | |
40 | struct mntent | |
41 | { | |
42 | char *mnt_fsname; /* Device or server for filesystem. */ | |
43 | char *mnt_dir; /* Directory mounted on. */ | |
44 | char *mnt_type; /* Type of filesystem: ufs, nfs, etc. */ | |
45 | char *mnt_opts; /* Comma-separated options for fs. */ | |
46 | int mnt_freq; /* Dump frequency (in days). */ | |
47 | int mnt_passno; /* Pass number for `fsck'. */ | |
48 | }; | |
49 | ||
50 | ||
51 | /* Prepare to begin reading and/or writing mount table entries from the | |
52 | beginning of FILE. MODE is as for `fopen'. */ | |
53 | extern FILE *setmntent __P ((__const char *__file, | |
54 | __const char *__mode)); | |
55 | ||
56 | /* Read one mount table entry from STREAM. Returns a pointer to storage | |
57 | reused on the next call, or null for EOF or error (use feof/ferror to | |
58 | check). */ | |
59 | extern struct mntent *getmntent __P ((FILE *__stream)); | |
60 | ||
61 | /* Write the mount table entry described by MNT to STREAM. | |
62 | Return zero on success, nonzero on failure. */ | |
63 | extern int addmntent __P ((FILE *__stream, | |
64 | __const struct mntent *__mnt)); | |
65 | ||
66 | /* Close a stream opened with `setmntent'. */ | |
67 | extern int endmntent __P ((FILE *__stream)); | |
68 | ||
69 | /* Search MNT->mnt_opts for an option matching OPT. | |
70 | Returns the address of the substring, or null if none found. */ | |
71 | extern char *hasmntopt __P ((__const struct mntent *__mnt, | |
72 | __const char *__opt)); | |
73 | ||
74 | ||
75 | __END_DECLS | |
76 | ||
77 | #endif /* mntent.h */ |