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/* $OpenBSD: mount_ext2fs.c,v 1.19 2019/06/28 13:32:44 deraadt Exp $ */
/* $NetBSD: mount_ffs.c,v 1.3 1996/04/13 01:31:19 jtc Exp $ */
/*-
* Copyright (c) 1993, 1994
* 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. 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.
*/
#include <sys/types.h>
#include <sys/mount.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include "mntopts.h"
void ext2fs_usage(void);
static const struct mntopt mopts[] = {
MOPT_STDOPTS,
MOPT_UPDATE,
{ NULL }
};
int
main(int argc, char *argv[])
{
struct ufs_args args; /* XXX ffs_args */
int ch, mntflags;
char fs_name[PATH_MAX], *errcause;
mntflags = 0;
optind = optreset = 1; /* Reset for parse of new argv. */
while ((ch = getopt(argc, argv, "o:")) != -1)
switch (ch) {
case 'o':
getmntopts(optarg, mopts, &mntflags);
break;
case '?':
default:
ext2fs_usage();
}
argc -= optind;
argv += optind;
if (argc != 2)
ext2fs_usage();
args.fspec = argv[0]; /* The name of the device file. */
if (realpath(argv[1], fs_name) == NULL) /* The mount point. */
err(1, "realpath %s", argv[1]);
#define DEFAULT_ROOTUID -2
args.export_info.ex_root = DEFAULT_ROOTUID;
if (mntflags & MNT_RDONLY)
args.export_info.ex_flags = MNT_EXRDONLY;
else
args.export_info.ex_flags = 0;
if (mount(MOUNT_EXT2FS, fs_name, mntflags, &args) == -1) {
switch (errno) {
case EMFILE:
errcause = "mount table full";
break;
case EINVAL:
errcause =
"specified device does not match mounted device";
break;
case EOPNOTSUPP:
errcause = "filesystem not supported by kernel";
break;
default:
errcause = strerror(errno);
break;
}
errx(1, "%s on %s: %s", args.fspec, fs_name, errcause);
}
exit(0);
}
void
ext2fs_usage(void)
{
(void)fprintf(stderr,
"usage: mount_ext2fs [-o options] special node\n");
exit(1);
}
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