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19361cb7 | 1 | /* Utilities for reading/writing fstab, mtab, etc. |
d614a753 | 2 | Copyright (C) 1995-2020 Free Software Foundation, Inc. |
54d79e99 UD |
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 | |
41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
54d79e99 UD |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
54d79e99 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
7a770247 RM |
18 | |
19 | #ifndef _MNTENT_H | |
20 | #define _MNTENT_H 1 | |
21 | ||
22 | #include <features.h> | |
ba1ffaa1 | 23 | #include <paths.h> |
199fc19d | 24 | #include <bits/types/FILE.h> |
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25 | |
26 | /* File listing canonical interesting mount points. */ | |
c4029823 | 27 | #define MNTTAB _PATH_MNTTAB /* Deprecated alias. */ |
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28 | |
29 | /* File listing currently active mount points. */ | |
c4029823 UD |
30 | #define MOUNTED _PATH_MOUNTED /* Deprecated alias. */ |
31 | ||
32 | ||
33 | /* General filesystem types. */ | |
34 | #define MNTTYPE_IGNORE "ignore" /* Ignore this entry. */ | |
35 | #define MNTTYPE_NFS "nfs" /* Network file system. */ | |
36 | #define MNTTYPE_SWAP "swap" /* Swap device. */ | |
37 | ||
38 | ||
39 | /* Generic mount options. */ | |
40 | #define MNTOPT_DEFAULTS "defaults" /* Use all default options. */ | |
41 | #define MNTOPT_RO "ro" /* Read only. */ | |
42 | #define MNTOPT_RW "rw" /* Read/write. */ | |
43 | #define MNTOPT_SUID "suid" /* Set uid allowed. */ | |
44 | #define MNTOPT_NOSUID "nosuid" /* No set uid allowed. */ | |
45 | #define MNTOPT_NOAUTO "noauto" /* Do not auto mount. */ | |
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46 | |
47 | ||
48 | __BEGIN_DECLS | |
49 | ||
50 | /* Structure describing a mount table entry. */ | |
51 | struct mntent | |
52 | { | |
bf7997b6 UD |
53 | char *mnt_fsname; /* Device or server for filesystem. */ |
54 | char *mnt_dir; /* Directory mounted on. */ | |
55 | char *mnt_type; /* Type of filesystem: ufs, nfs, etc. */ | |
56 | char *mnt_opts; /* Comma-separated options for fs. */ | |
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57 | int mnt_freq; /* Dump frequency (in days). */ |
58 | int mnt_passno; /* Pass number for `fsck'. */ | |
59 | }; | |
60 | ||
61 | ||
62 | /* Prepare to begin reading and/or writing mount table entries from the | |
63 | beginning of FILE. MODE is as for `fopen'. */ | |
a784e502 | 64 | extern FILE *setmntent (const char *__file, const char *__mode) __THROW; |
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65 | |
66 | /* Read one mount table entry from STREAM. Returns a pointer to storage | |
67 | reused on the next call, or null for EOF or error (use feof/ferror to | |
68 | check). */ | |
ee8449f7 | 69 | extern struct mntent *getmntent (FILE *__stream) __THROW; |
7a770247 | 70 | |
19361cb7 | 71 | #ifdef __USE_MISC |
845dcb57 | 72 | /* Reentrant version of the above function. */ |
c1422e5b UD |
73 | extern struct mntent *getmntent_r (FILE *__restrict __stream, |
74 | struct mntent *__restrict __result, | |
75 | char *__restrict __buffer, | |
ee8449f7 | 76 | int __bufsize) __THROW; |
845dcb57 UD |
77 | #endif |
78 | ||
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79 | /* Write the mount table entry described by MNT to STREAM. |
80 | Return zero on success, nonzero on failure. */ | |
c1422e5b | 81 | extern int addmntent (FILE *__restrict __stream, |
a784e502 | 82 | const struct mntent *__restrict __mnt) __THROW; |
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83 | |
84 | /* Close a stream opened with `setmntent'. */ | |
ee8449f7 | 85 | extern int endmntent (FILE *__stream) __THROW; |
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86 | |
87 | /* Search MNT->mnt_opts for an option matching OPT. | |
88 | Returns the address of the substring, or null if none found. */ | |
a784e502 UD |
89 | extern char *hasmntopt (const struct mntent *__mnt, |
90 | const char *__opt) __THROW; | |
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91 | |
92 | ||
93 | __END_DECLS | |
94 | ||
95 | #endif /* mntent.h */ |