116 lines
3.3 KiB
C
116 lines
3.3 KiB
C
/* $OpenBSD: mount_ext2fs.c,v 1.20 2022/12/04 23:50:46 cheloha Exp $ */
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/* $NetBSD: mount_ffs.c,v 1.3 1996/04/13 01:31:19 jtc Exp $ */
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/*-
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* Copyright (c) 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <sys/mount.h>
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <limits.h>
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#include "mntopts.h"
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void ext2fs_usage(void);
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static const struct mntopt mopts[] = {
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MOPT_STDOPTS,
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MOPT_UPDATE,
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{ NULL }
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};
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int
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main(int argc, char *argv[])
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{
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struct ufs_args args; /* XXX ffs_args */
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int ch, mntflags;
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char fs_name[PATH_MAX], *errcause;
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mntflags = 0;
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optind = optreset = 1; /* Reset for parse of new argv. */
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while ((ch = getopt(argc, argv, "o:")) != -1)
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switch (ch) {
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case 'o':
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getmntopts(optarg, mopts, &mntflags);
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break;
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default:
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ext2fs_usage();
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}
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argc -= optind;
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argv += optind;
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if (argc != 2)
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ext2fs_usage();
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args.fspec = argv[0]; /* The name of the device file. */
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if (realpath(argv[1], fs_name) == NULL) /* The mount point. */
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err(1, "realpath %s", argv[1]);
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#define DEFAULT_ROOTUID -2
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args.export_info.ex_root = DEFAULT_ROOTUID;
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if (mntflags & MNT_RDONLY)
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args.export_info.ex_flags = MNT_EXRDONLY;
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else
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args.export_info.ex_flags = 0;
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if (mount(MOUNT_EXT2FS, fs_name, mntflags, &args) == -1) {
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switch (errno) {
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case EMFILE:
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errcause = "mount table full";
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break;
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case EINVAL:
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errcause =
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"specified device does not match mounted device";
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break;
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case EOPNOTSUPP:
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errcause = "filesystem not supported by kernel";
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break;
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default:
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errcause = strerror(errno);
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break;
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}
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errx(1, "%s on %s: %s", args.fspec, fs_name, errcause);
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}
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exit(0);
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}
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void
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ext2fs_usage(void)
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{
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(void)fprintf(stderr,
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"usage: mount_ext2fs [-o options] special node\n");
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exit(1);
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}
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