| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* Utilities for reading/writing fstab, mtab, etc. |
| 2 | Copyright (C) 1995-2015 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 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. |
| 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 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, see |
| 17 | <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #ifndef _MNTENT_H |
| 20 | #define _MNTENT_H 1 |
| 21 | |
| 22 | #include <features.h> |
| 23 | #define __need_FILE |
| 24 | #include <stdio.h> |
| 25 | #include <paths.h> |
| 26 | |
| 27 | |
| 28 | /* File listing canonical interesting mount points. */ |
| 29 | #define MNTTAB _PATH_MNTTAB /* Deprecated alias. */ |
| 30 | |
| 31 | /* File listing currently active mount points. */ |
| 32 | #define MOUNTED _PATH_MOUNTED /* Deprecated alias. */ |
| 33 | |
| 34 | |
| 35 | /* General filesystem types. */ |
| 36 | #define MNTTYPE_IGNORE "ignore" /* Ignore this entry. */ |
| 37 | #define MNTTYPE_NFS "nfs" /* Network file system. */ |
| 38 | #define MNTTYPE_SWAP "swap" /* Swap device. */ |
| 39 | |
| 40 | |
| 41 | /* Generic mount options. */ |
| 42 | #define MNTOPT_DEFAULTS "defaults" /* Use all default options. */ |
| 43 | #define MNTOPT_RO "ro" /* Read only. */ |
| 44 | #define MNTOPT_RW "rw" /* Read/write. */ |
| 45 | #define MNTOPT_SUID "suid" /* Set uid allowed. */ |
| 46 | #define MNTOPT_NOSUID "nosuid" /* No set uid allowed. */ |
| 47 | #define MNTOPT_NOAUTO "noauto" /* Do not auto mount. */ |
| 48 | |
| 49 | |
| 50 | __BEGIN_DECLS |
| 51 | |
| 52 | /* Structure describing a mount table entry. */ |
| 53 | struct mntent |
| 54 | { |
| 55 | char *mnt_fsname; /* Device or server for filesystem. */ |
| 56 | char *mnt_dir; /* Directory mounted on. */ |
| 57 | char *mnt_type; /* Type of filesystem: ufs, nfs, etc. */ |
| 58 | char *mnt_opts; /* Comma-separated options for fs. */ |
| 59 | int mnt_freq; /* Dump frequency (in days). */ |
| 60 | int mnt_passno; /* Pass number for `fsck'. */ |
| 61 | }; |
| 62 | |
| 63 | |
| 64 | /* Prepare to begin reading and/or writing mount table entries from the |
| 65 | beginning of FILE. MODE is as for `fopen'. */ |
| 66 | extern FILE *setmntent (const char *__file, const char *__mode) __THROW; |
| 67 | |
| 68 | /* Read one mount table entry from STREAM. Returns a pointer to storage |
| 69 | reused on the next call, or null for EOF or error (use feof/ferror to |
| 70 | check). */ |
| 71 | extern struct mntent *getmntent (FILE *__stream) __THROW; |
| 72 | |
| 73 | #ifdef __USE_MISC |
| 74 | /* Reentrant version of the above function. */ |
| 75 | extern struct mntent *getmntent_r (FILE *__restrict __stream, |
| 76 | struct mntent *__restrict __result, |
| 77 | char *__restrict __buffer, |
| 78 | int __bufsize) __THROW; |
| 79 | #endif |
| 80 | |
| 81 | /* Write the mount table entry described by MNT to STREAM. |
| 82 | Return zero on success, nonzero on failure. */ |
| 83 | extern int addmntent (FILE *__restrict __stream, |
| 84 | const struct mntent *__restrict __mnt) __THROW; |
| 85 | |
| 86 | /* Close a stream opened with `setmntent'. */ |
| 87 | extern int endmntent (FILE *__stream) __THROW; |
| 88 | |
| 89 | /* Search MNT->mnt_opts for an option matching OPT. |
| 90 | Returns the address of the substring, or null if none found. */ |
| 91 | extern char *hasmntopt (const struct mntent *__mnt, |
| 92 | const char *__opt) __THROW; |
| 93 | |
| 94 | |
| 95 | __END_DECLS |
| 96 | |
| 97 | #endif /* mntent.h */ |