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mount_kernfs.c revision 1.5 
      1 /*
      2  * Copyright (c) 1990, 1992 Jan-Simon Pendry
      3  * Copyright (c) 1992, 1993, 1994
      4  *	The Regents of the University of California.  All rights reserved.
      5  *
      6  * This code is derived from software contributed to Berkeley by
      7  * Jan-Simon Pendry.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed by the University of
     20  *	California, Berkeley and its contributors.
     21  * 4. Neither the name of the University nor the names of its contributors
     22  *    may be used to endorse or promote products derived from this software
     23  *    without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  * SUCH DAMAGE.
     36  */
     37 
     38 #ifndef lint
     39 char copyright[] =
     40 "@(#) Copyright (c) 1992, 1993, 1994\n\
     41 	The Regents of the University of California.  All rights reserved.\n";
     42 #endif /* not lint */
     43 
     44 #ifndef lint
     45 /*static char sccsid[] = "from: @(#)mount_kernfs.c	8.2 (Berkeley) 3/27/94";*/
     46 static char *rcsid = "$Id: mount_kernfs.c,v 1.5 1994/06/08 19:15:27 mycroft Exp $";
     47 #endif /* not lint */
     48 
     49 #include <sys/param.h>
     50 #include <sys/mount.h>
     51 
     52 #include <err.h>
     53 #include <unistd.h>
     54 #include <stdio.h>
     55 #include <stdlib.h>
     56 #include <string.h>
     57 
     58 #include "mntopts.h"
     59 
     60 struct mntopt mopts[] = {
     61 	MOPT_STDOPTS,
     62 	{ NULL }
     63 };
     64 
     65 void	usage __P((void));
     66 
     67 int
     68 main(argc, argv)
     69 	int argc;
     70 	char *argv[];
     71 {
     72 	int ch, mntflags;
     73 
     74 	mntflags = 0;
     75 	while ((ch = getopt(argc, argv, "o:")) != EOF)
     76 		switch (ch) {
     77 		case 'o':
     78 			getmntopts(optarg, mopts, &mntflags);
     79 			break;
     80 		case '?':
     81 		default:
     82 			usage();
     83 		}
     84 	argc -= optind;
     85 	argv += optind;
     86 
     87 	if (argc != 2)
     88 		usage();
     89 
     90 	if (mount(MOUNT_KERNFS, argv[1], mntflags, NULL))
     91 		err(1, NULL);
     92 	exit(0);
     93 }
     94 
     95 void
     96 usage()
     97 {
     98 	(void)fprintf(stderr,
     99 		"usage: mount_kernfs [-o options] /kern mount_point\n");
    100 	exit(1);
    101 }
    102