1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <fstab.h>
#include <mntent.h>
#include <stdio.h>
static FILE *fstab;
static struct mntent mntres;
static char buffer[8192];
static FILE *
fstab_stream (void)
{
if (! fstab)
fstab = setmntent (_PATH_FSTAB, "r");
return fstab;
}
int
setfsent (void)
{
if (fstab)
{
rewind (fstab);
return 1;
}
else
fstab = setmntent (_PATH_FSTAB, "r");
return fstab ? 0 : 1;
}
static struct fstab *
internal_function
mnt2fs (struct mntent *m)
{
static struct fstab f;
if (m == NULL)
return NULL;
f.fs_spec = m->mnt_fsname;
f.fs_file = m->mnt_dir;
f.fs_vfstype = m->mnt_type;
f.fs_mntops = m->mnt_opts;
f.fs_type = (hasmntopt (m, FSTAB_RW) ? (char *) FSTAB_RW :
hasmntopt (m, FSTAB_RQ) ? (char *) FSTAB_RQ :
hasmntopt (m, FSTAB_RO) ? (char *) FSTAB_RO :
hasmntopt (m, FSTAB_SW) ? (char *) FSTAB_SW :
hasmntopt (m, FSTAB_XX) ? (char *) FSTAB_XX :
(char *) "??");
f.fs_freq = m->mnt_freq;
f.fs_passno = m->mnt_passno;
return &f;
}
struct fstab *
getfsent (void)
{
FILE *s = fstab_stream ();
if (! s)
return NULL;
return mnt2fs (__getmntent_r (s, &mntres, buffer, sizeof buffer));
}
struct fstab *
getfsspec (name)
register const char *name;
{
struct mntent *m;
if (setfsent ())
while (m = __getmntent_r (fstab, &mntres, buffer, sizeof buffer))
if (!strcmp (m->mnt_fsname, name))
return mnt2fs (m);
return NULL;
}
struct fstab *
getfsfile (name)
register const char *name;
{
struct mntent *m;
if (setfsent ())
while (m = __getmntent_r (fstab, &mntres, buffer, sizeof buffer))
if (!strcmp (m->mnt_dir, name))
return mnt2fs (m);
return NULL;
}
void
endfsent ()
{
if (fstab)
{
(void) endmntent (fstab);
fstab = NULL;
}
}
|
