| 1 | /* Utilities for reading/writing fstab, mtab, etc. |
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| 2 | Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, write to the Free |
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| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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| 18 | 02111-1307 USA. */ |
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| 19 | |
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| 20 | #ifndef _MNTENT_H |
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| 21 | #define _MNTENT_H 1 |
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| 22 | |
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| 23 | #include <features.h> |
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| 24 | #define __need_FILE |
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| 25 | #include <stdio.h> |
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| 26 | #include <paths.h> |
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| 27 | |
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| 28 | |
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| 29 | /* File listing canonical interesting mount points. */ |
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| 30 | #define MNTTAB _PATH_MNTTAB /* Deprecated alias. */ |
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| 31 | |
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| 32 | /* File listing currently active mount points. */ |
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| 33 | #define MOUNTED _PATH_MOUNTED /* Deprecated alias. */ |
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| 34 | |
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| 35 | |
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| 36 | /* General filesystem types. */ |
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| 37 | #define MNTTYPE_IGNORE "ignore" /* Ignore this entry. */ |
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| 38 | #define MNTTYPE_NFS "nfs" /* Network file system. */ |
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| 39 | #define MNTTYPE_SWAP "swap" /* Swap device. */ |
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| 40 | |
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| 41 | |
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| 42 | /* Generic mount options. */ |
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| 43 | #define MNTOPT_DEFAULTS "defaults" /* Use all default options. */ |
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| 44 | #define MNTOPT_RO "ro" /* Read only. */ |
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| 45 | #define MNTOPT_RW "rw" /* Read/write. */ |
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| 46 | #define MNTOPT_SUID "suid" /* Set uid allowed. */ |
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| 47 | #define MNTOPT_NOSUID "nosuid" /* No set uid allowed. */ |
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| 48 | #define MNTOPT_NOAUTO "noauto" /* Do not auto mount. */ |
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| 49 | |
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| 50 | |
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| 51 | __BEGIN_DECLS |
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| 52 | |
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| 53 | /* Structure describing a mount table entry. */ |
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| 54 | struct mntent |
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| 55 | { |
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| 56 | char *mnt_fsname; /* Device or server for filesystem. */ |
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| 57 | char *mnt_dir; /* Directory mounted on. */ |
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| 58 | char *mnt_type; /* Type of filesystem: ufs, nfs, etc. */ |
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| 59 | char *mnt_opts; /* Comma-separated options for fs. */ |
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| 60 | int mnt_freq; /* Dump frequency (in days). */ |
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| 61 | int mnt_passno; /* Pass number for `fsck'. */ |
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| 62 | }; |
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| 63 | |
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| 64 | |
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| 65 | /* Prepare to begin reading and/or writing mount table entries from the |
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| 66 | beginning of FILE. MODE is as for `fopen'. */ |
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| 67 | extern FILE *setmntent (__const char *__file, __const char *__mode) __THROW; |
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| 68 | |
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| 69 | /* Read one mount table entry from STREAM. Returns a pointer to storage |
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| 70 | reused on the next call, or null for EOF or error (use feof/ferror to |
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| 71 | check). */ |
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| 72 | extern struct mntent *getmntent (FILE *__stream) __THROW; |
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| 73 | |
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| 74 | #ifdef __USE_MISC |
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| 75 | /* Reentrant version of the above function. */ |
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| 76 | extern struct mntent *getmntent_r (FILE *__restrict __stream, |
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| 77 | struct mntent *__restrict __result, |
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| 78 | char *__restrict __buffer, |
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| 79 | int __bufsize) __THROW; |
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| 80 | #endif |
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| 81 | |
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| 82 | /* Write the mount table entry described by MNT to STREAM. |
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| 83 | Return zero on success, nonzero on failure. */ |
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| 84 | extern int addmntent (FILE *__restrict __stream, |
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| 85 | __const struct mntent *__restrict __mnt) __THROW; |
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| 86 | |
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| 87 | /* Close a stream opened with `setmntent'. */ |
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| 88 | extern int endmntent (FILE *__stream) __THROW; |
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| 89 | |
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| 90 | /* Search MNT->mnt_opts for an option matching OPT. |
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| 91 | Returns the address of the substring, or null if none found. */ |
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| 92 | extern char *hasmntopt (__const struct mntent *__mnt, |
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| 93 | __const char *__opt) __THROW; |
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| 94 | |
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| 95 | |
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| 96 | __END_DECLS |
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| 97 | |
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| 98 | #endif /* mntent.h */ |
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