-/*
- * Ported to Linux's Second Extended File System as part of the
- * dump and restore backup suit
- * Remy Card <card@Linux.EU.Org>, 1994-1997
- * Stelian Pop <stelian@popies.net>, 1999-2000
- * Stelian Pop <stelian@popies.net> - Alcôve <www.alcove.com>, 2000-2002
- */
-
-/*
- * Copyright (c) 1980, 1988, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-static const char rcsid[] =
- "$Id: fstab.c,v 1.13 2002/01/25 15:08:59 stelian Exp $";
-#endif /* not lint */
-
-#include <config.h>
-#include <errno.h>
-#include <fstab.h>
-#include <mntent.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <bylabel.h>
-
-static FILE *_fs_fp;
-static struct fstab _fs_fstab;
-
-static void error __P((int));
-static int fstabscan __P((void));
-
-void msg __P((const char *fmt, ...));
-
-static
-int fstabscan(void)
-{
- struct mntent *mnt;
- char *cp;
- int typexx;
-#define MAXLINELENGTH 1024
- char subline[MAXLINELENGTH];
-
- for (;;) {
- const char *device_name;
- if (!(mnt = getmntent(_fs_fp)))
- return 0;
-
- device_name = get_device_name(mnt->mnt_fsname);
- if (!device_name) {
- msg("Warning: unable to translate %s\n", mnt->mnt_fsname);
- continue;
- }
- _fs_fstab.fs_spec = device_name;
- _fs_fstab.fs_file = mnt->mnt_dir;
- _fs_fstab.fs_vfstype = mnt->mnt_type;
- _fs_fstab.fs_mntops = mnt->mnt_opts;
- _fs_fstab.fs_type = FSTAB_RW; /* rw by default under Linux */
- _fs_fstab.fs_freq = mnt->mnt_freq;
- _fs_fstab.fs_passno = mnt->mnt_passno;
-
- strcpy(subline, _fs_fstab.fs_mntops);
- for (typexx = 0, cp = strtok(subline, ","); cp;
- cp = strtok((char *)NULL, ",")) {
- if (!strcmp(cp, FSTAB_RW)) {
- _fs_fstab.fs_type = FSTAB_RW;
- break;
- }
- if (!strcmp(cp, FSTAB_RQ)) {
- _fs_fstab.fs_type = FSTAB_RQ;
- break;
- }
- if (!strcmp(cp, FSTAB_RO)) {
- _fs_fstab.fs_type = FSTAB_RO;
- break;
- }
- if (!strcmp(cp, FSTAB_SW)) {
- _fs_fstab.fs_type = FSTAB_SW;
- break;
- }
- if (!strcmp(cp, FSTAB_XX)) {
- _fs_fstab.fs_type = FSTAB_XX;
- typexx++;
- break;
- }
- }
- if (typexx)
- continue;
-
- return 1;
- }
-}
-
-struct fstab *
-getfsent(void)
-{
- if ((!_fs_fp && !setfsent()) || !fstabscan())
- return((struct fstab *)NULL);
- return(&_fs_fstab);
-}
-
-struct fstab *
-getfsspec(const char *name)
-{
- if (setfsent())
- while (fstabscan())
- if (!strcmp(_fs_fstab.fs_spec, name))
- return(&_fs_fstab);
- return((struct fstab *)NULL);
-}
-
-struct fstab *
-getfsfile(const char *name)
-{
- if (setfsent())
- while (fstabscan())
- if (!strcmp(_fs_fstab.fs_file, name))
- return(&_fs_fstab);
- return((struct fstab *)NULL);
-}
-
-int
-setfsent(void)
-{
- if (_fs_fp) {
- rewind(_fs_fp);
- return(1);
- }
- if ((_fs_fp = setmntent(_PATH_FSTAB, "r")))
- return(1);
- error(errno);
- return(0);
-}
-
-void
-endfsent(void)
-{
- if (_fs_fp) {
- (void)endmntent(_fs_fp);
- _fs_fp = NULL;
- }
-}
-
-static
-void error(int err)
-{
- char *p;
-
- (void)write(STDERR_FILENO, "fstab: ", 7);
- (void)write(STDERR_FILENO, _PATH_FSTAB, sizeof(_PATH_FSTAB) - 1);
- (void)write(STDERR_FILENO, ": ", 1);
- p = strerror(err);
- (void)write(STDERR_FILENO, p, strlen(p));
- (void)write(STDERR_FILENO, "\n", 1);
-}
git.wh0rd.org / dump.git / commitdiff
