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/* $OpenBSD: mount_kernfs.c,v 1.12 2005/04/08 20:09:37 jaredy Exp $ */
/* $NetBSD: mount_kernfs.c,v 1.8 1996/04/13 05:35:39 cgd Exp $ */
/*
* 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.
*/
#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1992, 1993, 1994\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)mount_kernfs.c 8.2 (Berkeley) 3/27/94";
#else
static char rcsid[] = "$OpenBSD: mount_kernfs.c,v 1.12 2005/04/08 20:09:37 jaredy Exp $";
#endif
#endif /* not lint */
#include <sys/param.h>
#include <sys/mount.h>
#include <err.h>
#include <errno.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mntopts.h"
const struct mntopt mopts[] = {
MOPT_STDOPTS,
{ NULL }
};
void usage(void);
int
main(int argc, char *argv[])
{
int ch, mntflags;
char path[MAXPATHLEN];
mntflags = 0;
while ((ch = getopt(argc, argv, "o:")) != -1)
switch (ch) {
case 'o':
getmntopts(optarg, mopts, &mntflags);
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc != 2)
usage();
if (realpath(argv[1], path) == NULL)
err(1, "realpath %s", argv[1]);
if (mount(MOUNT_KERNFS, path, mntflags, NULL)) {
if (errno == EOPNOTSUPP)
errx(1, "Filesystem not supported by kernel");
else
err(1, NULL);
}
return 0;
}
void
usage(void)
{
(void)fprintf(stderr,
"usage: mount_kernfs [-o options] /kern mount_point\n");
exit(1);
}
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