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
|
/* $Header: /home/faith/cvs/util-linux/mount/fstab.c,v 1.2 1995/10/07 01:32:03 faith Exp $ */
#include "fstab.h"
#include <stdio.h>
#define streq(s, t) (strcmp ((s), (t)) == 0)
/* These routines are superseded by mntent(3), but I use them for
convenience. Mntent(3) is used in the implementation, so be
very careful about the static buffers that are returned. */
static FILE *F_fstab = NULL;
/* Open fstab or rewind if already open. */
int
setfsent (void)
{
if (F_fstab)
return (fseek (F_fstab, 0L, SEEK_SET) == 0);
F_fstab = setmntent (_PATH_FSTAB, "r");
return (F_fstab != NULL);
}
/* Close fstab. */
void
endfsent (void)
{
endmntent (F_fstab);
}
/* Return next entry in fstab, skipping ignore entries. I also put
in some ugly hacks here to skip comments and blank lines. */
struct mntent *
getfsent (void)
{
struct mntent *fstab;
if (!F_fstab && !setfsent())
return 0;
for (;;)
{
fstab = getmntent (F_fstab);
if (fstab == NULL)
{
if (!feof (F_fstab) && !ferror (F_fstab))
continue;
else
break;
}
else if ((*fstab->mnt_fsname != '#')
&& !streq (fstab->mnt_type, MNTTYPE_IGNORE))
break;
}
return fstab;
}
/* Find the dir FILE in fstab. */
struct mntent *
getfsfile (const char *file)
{
struct mntent *fstab;
/* Open or rewind fstab. */
if (!setfsent ())
return 0;
while ((fstab = getfsent ()))
if (streq (fstab->mnt_dir, file))
break;
return fstab;
}
/* Find the device SPEC in fstab. */
struct mntent *
getfsspec (const char *spec)
{
struct mntent *fstab;
/* Open or rewind fstab. */
if (!setfsent())
return 0;
while ((fstab = getfsent ()))
if (streq (fstab->mnt_fsname, spec))
break;
return fstab;
}
|
