root/sbin/mount_udf/mount_udf.c
/*
 * Copyright (c) 1992, 1993, 1994
 *      The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley
 * by Pace Willisson (pace@blitz.com).  The Rock Ridge Extension
 * Support code is derived from software contributed to Berkeley
 * by Atsushi Murai (amurai@spec.co.jp).
 *
 * 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.
 *
 *      @(#)mount_cd9660.c      8.7 (Berkeley) 5/1/95
 *
 * @(#) Copyright (c) 1992, 1993, 1994 The Regents of the University of California.  All rights reserved.
 * @(#)mount_cd9660.c   8.7 (Berkeley) 5/1/95
 * $FreeBSD: src/sbin/mount_cd9660/mount_cd9660.c,v 1.15.2.3 2001/03/14 12:05:01 bp Exp $
 */

#include <sys/cdio.h>
#include <sys/file.h>
#include <sys/param.h>
#include <sys/mount.h>
#include <vfs/udf/udf_mount.h>

#include <err.h>
#include <errno.h>
#include <mntopts.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>

static struct mntopt mopts[] = {
        MOPT_STDOPTS,
        MOPT_UPDATE,
        MOPT_NULL
};

static void     usage(void) __dead2;

int
main(int argc, char **argv)
{
        struct udf_args args;
        int ch, mntflags, opts;
        char *dev, *dir, mntpath[MAXPATHLEN];
        struct vfsconf vfc;
        int error, verbose;

        mntflags = opts = verbose = 0;
        memset(&args, 0, sizeof args);
        while ((ch = getopt(argc, argv, "o:v")) != -1)
                switch (ch) {
                case 'o':
                        getmntopts(optarg, mopts, &mntflags, &opts);
                        break;
                case 'v':
                        verbose++;
                        break;
                case '?':
                default:
                        usage();
                }
        argc -= optind;
        argv += optind;

        if (argc != 2)
                usage();

        dev = argv[0];
        dir = argv[1];

        /*
         * Resolve the mountpoint with realpath(3) and remove unnecessary
         * slashes from the devicename if there are any.
         */
        checkpath(dir, mntpath);
        rmslashes(dev, dev);

#define DEFAULT_ROOTUID -2
        /*
         * UDF filesystems are not writeable.
         */
        mntflags |= MNT_RDONLY;
        args.export.ex_flags = MNT_EXRDONLY;
        args.fspec = dev;
        args.export.ex_root = DEFAULT_ROOTUID;
        args.flags = opts;

        error = getvfsbyname("udf", &vfc);
        if (error && vfsisloadable("udf")) {
                if (vfsload("udf"))
                        err(EX_OSERR, "vfsload(udf)");
                endvfsent();    /* flush cache */
                error = getvfsbyname("udf", &vfc);
        }
        if (error)
                errx(1, "UDF filesystem is not available");

        if (mount(vfc.vfc_name, mntpath, mntflags, &args) < 0)
                err(1, "%s", args.fspec);
        exit(0);
}

static void
usage(void)
{
        fprintf(stderr, "usage: mount_udf [-o options] special node\n");
        exit(EX_USAGE);
}