/*
 * Copyright (c) 1990, 1992 Jan-Simon Pendry
 * 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
 * Jan-Simon Pendry.
 *
 * 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.
 *
 * @(#) Copyright (c) 1992, 1993, 1994 The Regents of the University of California.  All rights reserved.
 * $FreeBSD: src/sbin/mount_std/mount_std.c,v 1.10.2.1 2001/07/30 10:30:07 dd Exp $
 */

#include <sys/param.h>
#include <sys/mount.h>

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

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

static void     usage(void) __dead2;
static const char *fsname;

int
main(int argc, char **argv)
{
        int ch, mntflags;
        char mntpath[MAXPATHLEN];
        struct vfsconf vfc;
        int error;

        /*
         * XXX
         * mount(8) calls the mount programs with an argv[0] which is
         * /just/ the filesystem name.  So, if there is no underscore
         * in argv[0], we assume that we are being called from mount(8)
         * and that argv[0] is thus the name of the filesystem type.
         */
        fsname = strrchr(argv[0], '_');
        if (fsname) {
                if (strcmp(fsname, "_std") == 0)
                        errx(EX_USAGE, "argv[0] must end in _fsname");
                fsname++;
        } else {
                fsname = argv[0];
        }

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

        if (argc != 2)
                usage();

        error = getvfsbyname(fsname, &vfc);
        if (error && vfsisloadable(fsname)) {
                if(vfsload(fsname))
                        err(EX_OSERR, "vfsload(%s)", fsname);
                endvfsent();
                error = getvfsbyname(fsname, &vfc);
        }
        if (error)
                errx(EX_OSERR, "%s filesystem not available", fsname);

        /* resolve the mountpoint with realpath(3) */
        checkpath(argv[1], mntpath);

        if (mount(vfc.vfc_name, mntpath, mntflags, NULL))
                err(EX_OSERR, NULL);
        exit(0);
}

void
usage(void)
{
        fprintf(stderr,
            "usage: mount_%s [-o options] what_to_mount mount_point\n", fsname);
        exit(EX_USAGE);
}