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
117
118
119
120
121
|
/* Copyright (C) 2008 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David Bartley <dtbartle@csclub.uwaterloo.ca>, 2008.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <sys/ioctl.h>
#include <sys/mnttab.h>
#include <sys/mntio.h>
/* Docs: http://docs.sun.com/app/docs/doc/816-5168/resetmnttab-3c */
#define _MNT_CMP(x, y, f) \
(!y->f || (y->f && strcmp (x->f, y->f) == 0))
int __getmntent_sun (FILE *fp, struct mnttab *mt)
{
struct extmnttab emt;
int res = ioctl (fileno (fp), MNTIOC_GETMNTENT, &emt);
if (res != 0)
return -1;
mt->mnt_special = emt.mnt_special;
mt->mnt_mountp = emt.mnt_mountp;
mt->mnt_fstype = emt.mnt_fstype;
mt->mnt_mntopts = emt.mnt_mntopts;
mt->mnt_time = emt.mnt_time;
return 0;
}
int getmntany (FILE *fp, struct mnttab *mt, struct mnttab *mtpref)
{
int res;
while ((res = getmntent (fp, mt)) == 0)
{
if (_MNT_CMP (mt, mtpref, mnt_special) &&
_MNT_CMP (mt, mtpref, mnt_mountp) &&
_MNT_CMP (mt, mtpref, mnt_fstype) &&
_MNT_CMP (mt, mtpref, mnt_mntopts) &&
_MNT_CMP (mt, mtpref, mnt_time))
return 0;
}
return res;
}
int getextmntent (FILE *fp, struct extmnttab *emt, size_t len)
{
int res = ioctl (fileno (fp), MNTIOC_GETMNTENT, emt);
if (res != 0)
return -1;
return 0;
}
char *mntopt (char **opts)
{
char *optsp = *opts;
/* Strip leading spaces. */
while (*optsp == ' ')
optsp++;
/* Find comma. */
char *ret = optsp;
while (*optsp != ',' && *optsp != '\0')
optsp++;
/* Replace comma with null terminator. */
if (*optsp == ',')
optsp++;
*opts = optsp;
return ret;
}
char * __hasmntopt_sun (struct mnttab *mt, char *opt)
{
/* We make a copy of mnt_mntopts since we modify it. */
char buf[MNT_LINE_MAX + 1];
strncpy (buf, mt->mnt_mntopts, sizeof (buf))[MNT_LINE_MAX] = '\0';
char *opts = buf;
char *optp;
size_t len = strlen (opt);
while (*(optp = mntopt (&opts)))
{
/* Check if opt matched, taking into account delimiters (e.g. '='). */
if (strncmp (optp, opt, len) == 0 && !isalnum (optp[len]))
return mt->mnt_mntopts + (optp - buf);
}
return NULL;
}
void resetmnttab (FILE *fp)
{
rewind (fp);
}
|
