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mount_kernfs.c revision 1.1.1.1 
      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[] = "@(#)mount_kernfs.c	8.2 (Berkeley) 3/27/94";
     46 #endif /* not lint */
     47 
     48 #include <sys/param.h>
     49 #include <sys/mount.h>
     50 
     51 #include <err.h>
     52 #include <unistd.h>
     53 #include <stdio.h>
     54 #include <stdlib.h>
     55 #include <string.h>
     56 
     57 #include "mntopts.h"
     58 
     59 struct mntopt mopts[] = {
     60 	MOPT_STDOPTS,
     61 	{ NULL }
     62 };
     63 
     64 void	usage __P((void));
     65 
     66 int
     67 main(argc, argv)
     68 	int argc;
     69 	char *argv[];
     70 {
     71 	int ch, mntflags;
     72 
     73 	mntflags = 0;
     74 	while ((ch = getopt(argc, argv, "o:")) != EOF)
     75 		switch (ch) {
     76 		case 'o':
     77 			getmntopts(optarg, mopts, &mntflags);
     78 			break;
     79 		case '?':
     80 		default:
     81 			usage();
     82 		}
     83 	argc -= optind;
     84 	argv += optind;
     85 
     86 	if (argc != 2)
     87 		usage();
     88 
     89 	if (mount(MOUNT_KERNFS, argv[1], mntflags, NULL))
     90 		err(1, NULL);
     91 	exit(0);
     92 }
     93 
     94 void
     95 usage()
     96 {
     97 	(void)fprintf(stderr,
     98 		"usage: mount_kernfs [-o options] /kern mount_point\n");
     99 	exit(1);
    100 }
    101