|
Packit |
6c4009 |
/* Copyright (C) 1995-2018 Free Software Foundation, Inc.
|
|
Packit |
6c4009 |
This file is part of the GNU C Library.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is free software; you can redistribute it and/or
|
|
Packit |
6c4009 |
modify it under the terms of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License as published by the Free Software Foundation; either
|
|
Packit |
6c4009 |
version 2.1 of the License, or (at your option) any later version.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is distributed in the hope that it will be useful,
|
|
Packit |
6c4009 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit |
6c4009 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Packit |
6c4009 |
Lesser General Public License for more details.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
You should have received a copy of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License along with the GNU C Library; if not, see
|
|
Packit |
6c4009 |
<http://www.gnu.org/licenses/>. */
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#include <fstab.h>
|
|
Packit |
6c4009 |
#include <mntent.h>
|
|
Packit |
6c4009 |
#include <stdio.h>
|
|
Packit |
6c4009 |
#include <stdlib.h>
|
|
Packit |
6c4009 |
#include <string.h>
|
|
Packit |
6c4009 |
#include <libc-lock.h>
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#define BUFFER_SIZE 0x1fc0
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
struct fstab_state
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
FILE *fs_fp;
|
|
Packit |
6c4009 |
char *fs_buffer;
|
|
Packit |
6c4009 |
struct mntent fs_mntres;
|
|
Packit |
6c4009 |
struct fstab fs_ret;
|
|
Packit |
6c4009 |
};
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
static struct fstab_state *fstab_init (int opt_rewind);
|
|
Packit |
6c4009 |
static struct mntent *fstab_fetch (struct fstab_state *state);
|
|
Packit |
6c4009 |
static struct fstab *fstab_convert (struct fstab_state *state);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
static struct fstab_state fstab_state;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
int
|
|
Packit |
6c4009 |
setfsent (void)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
return fstab_init (1) != NULL;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
struct fstab *
|
|
Packit |
6c4009 |
getfsent (void)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
struct fstab_state *state;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
state = fstab_init (0);
|
|
Packit |
6c4009 |
if (state == NULL)
|
|
Packit |
6c4009 |
return NULL;
|
|
Packit |
6c4009 |
if (fstab_fetch (state) == NULL)
|
|
Packit |
6c4009 |
return NULL;
|
|
Packit |
6c4009 |
return fstab_convert (state);
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
struct fstab *
|
|
Packit |
6c4009 |
getfsspec (const char *name)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
struct fstab_state *state;
|
|
Packit |
6c4009 |
struct mntent *m;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
state = fstab_init (1);
|
|
Packit |
6c4009 |
if (state == NULL)
|
|
Packit |
6c4009 |
return NULL;
|
|
Packit |
6c4009 |
while ((m = fstab_fetch (state)) != NULL)
|
|
Packit |
6c4009 |
if (strcmp (m->mnt_fsname, name) == 0)
|
|
Packit |
6c4009 |
return fstab_convert (state);
|
|
Packit |
6c4009 |
return NULL;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
struct fstab *
|
|
Packit |
6c4009 |
getfsfile (const char *name)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
struct fstab_state *state;
|
|
Packit |
6c4009 |
struct mntent *m;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
state = fstab_init (1);
|
|
Packit |
6c4009 |
if (state == NULL)
|
|
Packit |
6c4009 |
return NULL;
|
|
Packit |
6c4009 |
while ((m = fstab_fetch (state)) != NULL)
|
|
Packit |
6c4009 |
if (strcmp (m->mnt_dir, name) == 0)
|
|
Packit |
6c4009 |
return fstab_convert (state);
|
|
Packit |
6c4009 |
return NULL;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
void
|
|
Packit |
6c4009 |
endfsent (void)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
struct fstab_state *state;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
state = &fstab_state;
|
|
Packit |
6c4009 |
if (state->fs_fp != NULL)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
(void) __endmntent (state->fs_fp);
|
|
Packit |
6c4009 |
state->fs_fp = NULL;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
static struct fstab_state *
|
|
Packit |
6c4009 |
fstab_init (int opt_rewind)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
struct fstab_state *state;
|
|
Packit |
6c4009 |
char *buffer;
|
|
Packit |
6c4009 |
FILE *fp;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
state = &fstab_state;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
buffer = state->fs_buffer;
|
|
Packit |
6c4009 |
if (buffer == NULL)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
buffer = (char *) malloc (BUFFER_SIZE);
|
|
Packit |
6c4009 |
if (buffer == NULL)
|
|
Packit |
6c4009 |
return NULL;
|
|
Packit |
6c4009 |
state->fs_buffer = buffer;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
fp = state->fs_fp;
|
|
Packit |
6c4009 |
if (fp != NULL)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
if (opt_rewind)
|
|
Packit |
6c4009 |
rewind (fp);
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
else
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
fp = __setmntent (_PATH_FSTAB, "r");
|
|
Packit |
6c4009 |
if (fp == NULL)
|
|
Packit |
6c4009 |
return NULL;
|
|
Packit |
6c4009 |
state->fs_fp = fp;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
return state;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
static struct mntent *
|
|
Packit |
6c4009 |
fstab_fetch (struct fstab_state *state)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
return __getmntent_r (state->fs_fp, &state->fs_mntres,
|
|
Packit |
6c4009 |
state->fs_buffer, BUFFER_SIZE);
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
static struct fstab *
|
|
Packit |
6c4009 |
fstab_convert (struct fstab_state *state)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
struct mntent *m;
|
|
Packit |
6c4009 |
struct fstab *f;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
m = &state->fs_mntres;
|
|
Packit |
6c4009 |
f = &state->fs_ret;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
f->fs_spec = m->mnt_fsname;
|
|
Packit |
6c4009 |
f->fs_file = m->mnt_dir;
|
|
Packit |
6c4009 |
f->fs_vfstype = m->mnt_type;
|
|
Packit |
6c4009 |
f->fs_mntops = m->mnt_opts;
|
|
Packit |
6c4009 |
f->fs_type = (__hasmntopt (m, FSTAB_RW) ? FSTAB_RW :
|
|
Packit |
6c4009 |
__hasmntopt (m, FSTAB_RQ) ? FSTAB_RQ :
|
|
Packit |
6c4009 |
__hasmntopt (m, FSTAB_RO) ? FSTAB_RO :
|
|
Packit |
6c4009 |
__hasmntopt (m, FSTAB_SW) ? FSTAB_SW :
|
|
Packit |
6c4009 |
__hasmntopt (m, FSTAB_XX) ? FSTAB_XX :
|
|
Packit |
6c4009 |
"??");
|
|
Packit |
6c4009 |
f->fs_freq = m->mnt_freq;
|
|
Packit |
6c4009 |
f->fs_passno = m->mnt_passno;
|
|
Packit |
6c4009 |
return f;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Make sure the memory is freed if the programs ends while in
|
|
Packit |
6c4009 |
memory-debugging mode and something actually was allocated. */
|
|
Packit |
6c4009 |
libc_freeres_fn (fstab_free)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
char *buffer;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
buffer = fstab_state.fs_buffer;
|
|
Packit |
6c4009 |
free ((void *) buffer);
|
|
Packit |
6c4009 |
}
|