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mntent.h
01: /* Utilities for reading/writing fstab, mtab, etc.
02:    Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
03:    This file is part of the GNU C Library.
04: 
05:    The GNU C Library is free software; you can redistribute it and/or
06:    modify it under the terms of the GNU Lesser General Public
07:    License as published by the Free Software Foundation; either
08:    version 2.1 of the License, or (at your option) any later version.
09: 
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, write to the Free
17:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18:    02111-1307 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: #include <paths.h>
27: 
28: 
29: /* File listing canonical interesting mount points.  */
30: #define MNTTAB          _PATH_MNTTAB    /* Deprecated alias.  */
31: 
32: /* File listing currently active mount points.  */
33: #define MOUNTED         _PATH_MOUNTED   /* Deprecated alias.  */
34: 
35: 
36: /* General filesystem types.  */
37: #define MNTTYPE_IGNORE  "ignore"        /* Ignore this entry.  */
38: #define MNTTYPE_NFS     "nfs"           /* Network file system.  */
39: #define MNTTYPE_SWAP    "swap"          /* Swap device.  */
40: 
41: 
42: /* Generic mount options.  */
43: #define MNTOPT_DEFAULTS "defaults"      /* Use all default options.  */
44: #define MNTOPT_RO       "ro"            /* Read only.  */
45: #define MNTOPT_RW       "rw"            /* Read/write.  */
46: #define MNTOPT_SUID     "suid"          /* Set uid allowed.  */
47: #define MNTOPT_NOSUID   "nosuid"        /* No set uid allowed.  */
48: #define MNTOPT_NOAUTO   "noauto"        /* Do not auto mount.  */
49: 
50: 
51: __BEGIN_DECLS
52: 
53: /* Structure describing a mount table entry.  */
54: struct mntent
55:   {
56:     char *mnt_fsname;           /* Device or server for filesystem.  */
57:     char *mnt_dir;              /* Directory mounted on.  */
58:     char *mnt_type;             /* Type of filesystem: ufs, nfs, etc.  */
59:     char *mnt_opts;             /* Comma-separated options for fs.  */
60:     int mnt_freq;               /* Dump frequency (in days).  */
61:     int mnt_passno;             /* Pass number for `fsck'.  */
62:   };
63: 
64: 
65: /* Prepare to begin reading and/or writing mount table entries from the
66:    beginning of FILE.  MODE is as for `fopen'.  */
67: extern FILE *setmntent (__const char *__file, __const char *__mode) __THROW;
68: 
69: /* Read one mount table entry from STREAM.  Returns a pointer to storage
70:    reused on the next call, or null for EOF or error (use feof/ferror to
71:    check).  */
72: extern struct mntent *getmntent (FILE *__stream) __THROW;
73: 
74: #ifdef __USE_MISC
75: /* Reentrant version of the above function.  */
76: extern struct mntent *getmntent_r (FILE *__restrict __stream,
77:                                    struct mntent *__restrict __result,
78:                                    char *__restrict __buffer,
79:                                    int __bufsize) __THROW;
80: #endif
81: 
82: /* Write the mount table entry described by MNT to STREAM.
83:    Return zero on success, nonzero on failure.  */
84: extern int addmntent (FILE *__restrict __stream,
85:                       __const struct mntent *__restrict __mnt) __THROW;
86: 
87: /* Close a stream opened with `setmntent'.  */
88: extern int endmntent (FILE *__stream) __THROW;
89: 
90: /* Search MNT->mnt_opts for an option matching OPT.
91:    Returns the address of the substring, or null if none found.  */
92: extern char *hasmntopt (__const struct mntent *__mnt,
93:                         __const char *__opt) __THROW;
94: 
95: 
96: __END_DECLS
97: 
98: #endif  /* mntent.h */
99: 


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© Andrew Scott 2006 - 2024,
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http://www.andrew-scott.uk/
Andrew Scott
http://www.andrew-scott.co.uk/