150 lines
3.7 KiB
C
150 lines
3.7 KiB
C
/* $NetBSD: mount_chfs.c,v 1.5 2021/07/16 12:09:36 andvar Exp $ */
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/*-
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* Copyright (c) 2010 Department of Software Engineering,
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* University of Szeged, Hungary
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by the Department of Software Engineering, University of Szeged, Hungary
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* 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/cdefs.h>
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#ifndef lint
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/mount.h>
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#include <sys/stat.h>
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#include <ufs/ufs/ufsmount.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <grp.h>
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#include <mntopts.h>
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#include <pwd.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 "mountprog.h"
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#include "mount_chfs.h"
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static const struct mntopt mopts[] = {
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MOPT_STDOPTS,
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MOPT_GETARGS,
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MOPT_NULL,
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};
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/* --------------------------------------------------------------------- */
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static void usage(void) __dead;
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/* --------------------------------------------------------------------- */
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void
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mount_chfs_parseargs(int argc, char *argv[], struct ufs_args *args,
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int *mntflags, char *canon_dev, char *canon_dir)
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{
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int ch;
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mntoptparse_t mp;
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struct stat sb;
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/* Set default values for mount point arguments. */
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memset(args, 0, sizeof(*args));
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*mntflags = 0;
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optind = optreset = 1;
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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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mp = getmntopts(optarg, mopts, mntflags, 0);
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if (mp == NULL)
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err(1, "getmntopts");
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freemntopts(mp);
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break;
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case '?':
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default:
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usage();
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}
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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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usage();
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pathadj(argv[0], canon_dev);
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pathadj(argv[1], canon_dir);
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args->fspec = canon_dev;
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if (stat(canon_dir, &sb) == -1) {
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err(EXIT_FAILURE, "cannot stat `%s'", canon_dir);
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}
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}
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/* --------------------------------------------------------------------- */
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static void
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usage(void)
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{
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(void)fprintf(stderr,
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"usage: %s special mountpath\n",
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getprogname());
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exit(1);
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}
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/* --------------------------------------------------------------------- */
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int
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mount_chfs(int argc, char *argv[])
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{
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struct ufs_args args;
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char canon_dev[MAXPATHLEN], fs_name[MAXPATHLEN];
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int mntflags;
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mount_chfs_parseargs(argc, argv, &args, &mntflags,
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canon_dev, fs_name);
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if (mount(MOUNT_CHFS, fs_name, mntflags, &args, sizeof args) == -1) {
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err(EXIT_FAILURE, "chfs on %s", fs_name);
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}
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return EXIT_SUCCESS;
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}
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#ifndef MOUNT_NOMAIN
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int
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main(int argc, char *argv[])
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{
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setprogname(argv[0]);
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return mount_chfs(argc, argv);
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}
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#endif
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