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mount_kernfs.c revision 1.12 
      1 /*	$NetBSD: mount_kernfs.c,v 1.12 2000/10/30 20:56:59 jdolecek Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1990, 1992 Jan-Simon Pendry
      5  * Copyright (c) 1992, 1993, 1994
      6  *	The Regents of the University of California.  All rights reserved.
      7  *
      8  * This code is derived from software contributed to Berkeley by
      9  * Jan-Simon Pendry.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. All advertising materials mentioning features or use of this software
     20  *    must display the following acknowledgement:
     21  *	This product includes software developed by the University of
     22  *	California, Berkeley and its contributors.
     23  * 4. Neither the name of the University nor the names of its contributors
     24  *    may be used to endorse or promote products derived from this software
     25  *    without specific prior written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     28  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     30  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     31  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     35  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     36  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     37  * SUCH DAMAGE.
     38  */
     39 
     40 #include <sys/cdefs.h>
     41 #ifndef lint
     42 __COPYRIGHT("@(#) Copyright (c) 1992, 1993, 1994\n\
     43 	The Regents of the University of California.  All rights reserved.\n");
     44 #endif /* not lint */
     45 
     46 #ifndef lint
     47 #if 0
     48 static char sccsid[] = "@(#)mount_kernfs.c	8.3 (Berkeley) 5/4/95";
     49 #else
     50 __RCSID("$NetBSD: mount_kernfs.c,v 1.12 2000/10/30 20:56:59 jdolecek Exp $");
     51 #endif
     52 #endif /* not lint */
     53 
     54 #include <sys/param.h>
     55 #include <sys/mount.h>
     56 
     57 #include <err.h>
     58 #include <unistd.h>
     59 #include <stdio.h>
     60 #include <stdlib.h>
     61 #include <string.h>
     62 
     63 #include "mntopts.h"
     64 
     65 static const struct mntopt mopts[] = {
     66 	MOPT_STDOPTS,
     67 	{ NULL }
     68 };
     69 
     70 int	main __P((int, char *[]));
     71 int	mount_kernfs __P((int argc, char **argv));
     72 static void	usage __P((void));
     73 
     74 #ifndef MOUNT_NOMAIN
     75 int
     76 main(argc, argv)
     77 	int argc;
     78 	char **argv;
     79 {
     80 	return mount_kernfs(argc, argv);
     81 }
     82 #endif
     83 
     84 int
     85 mount_kernfs(argc, argv)
     86 	int argc;
     87 	char *argv[];
     88 {
     89 	int ch, mntflags;
     90 
     91 	mntflags = 0;
     92 	while ((ch = getopt(argc, argv, "o:")) != -1)
     93 		switch (ch) {
     94 		case 'o':
     95 			getmntopts(optarg, mopts, &mntflags, 0);
     96 			break;
     97 		case '?':
     98 		default:
     99 			usage();
    100 		}
    101 	argc -= optind;
    102 	argv += optind;
    103 
    104 	if (argc != 2)
    105 		usage();
    106 
    107 	if (mount(MOUNT_KERNFS, argv[1], mntflags, NULL))
    108 		err(1, "kernfs on %s", argv[1]);
    109 	exit(0);
    110 }
    111 
    112 static void
    113 usage()
    114 {
    115 	(void)fprintf(stderr,
    116 		"usage: mount_kernfs [-o options] /kern mount_point\n");
    117 	exit(1);
    118 }
    119