NetBSD/sbin/mount_v7fs/mount_v7fs.c

192 lines
5.5 KiB
C

/* $NetBSD: mount_v7fs.c,v 1.1 2011/06/27 11:52:58 uch Exp $ */
/*-
* Copyright (c) 2011 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by UCHIYAMA Yasushi.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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) 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: mount_v7fs.c,v 1.1 2011/06/27 11:52:58 uch Exp $");
#endif /* not lint */
#include <sys/param.h>
#include <sys/mount.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <mntopts.h>
#include "mountprog.h"
#include "mount_v7fs.h"
static const struct mntopt mopts[] = {
MOPT_STDOPTS,
MOPT_UPDATE,
MOPT_GETARGS,
MOPT_NULL,
};
static void v7fs_usage(void) __dead;
#ifndef MOUNT_NOMAIN
int
main(int argc, char **argv)
{
return mount_v7fs(argc, argv);
}
#endif
int
mount_v7fs(int argc, char *argv[])
{
struct v7fs_args args;
char canon_dev[MAXPATHLEN], canon_dir[MAXPATHLEN];
const char *errcause;
int mntflags;
mount_v7fs_parseargs(argc, argv, &args, &mntflags,
canon_dev, canon_dir);
if (mount(MOUNT_V7FS, canon_dir, mntflags, &args, sizeof args) == -1) {
switch (errno) {
case EMFILE:
errcause = "mount table full";
break;
case EINVAL:
if (mntflags & MNT_UPDATE)
errcause =
"specified device does not match mounted device";
else
errcause = "incorrect super block";
break;
default:
errcause = strerror(errno);
break;
}
errx(EXIT_FAILURE, "%s on %s: %s", canon_dev, canon_dir,
errcause);
}
if (mntflags & MNT_GETARGS) {
printf("endian=%d\n", args.endian);
}
return EXIT_SUCCESS;
}
void
mount_v7fs_parseargs(int argc, char **argv, struct v7fs_args *args,
int *mntflags, char *canon_dev, char *canon_dir)
{
int ch;
mntoptparse_t mp;
int endian = _BYTE_ORDER;
*mntflags = 0;
optind = optreset = 1; /* Reset for parse of new argv. */
while ((ch = getopt(argc, argv, "o:B:")) != -1)
switch (ch) {
case 'o':
mp = getmntopts(optarg, mopts, mntflags, 0);
if (mp == NULL)
err(1, "getmntopts");
freemntopts(mp);
break;
case 'B':
switch (optarg[0]) {
case 'l':
endian = _LITTLE_ENDIAN;
break;
case 'b':
endian = _BIG_ENDIAN;
break;
case 'p':
endian = _PDP_ENDIAN;
break;
}
break;
case '?':
default:
v7fs_usage();
}
argc -= optind;
argv += optind;
if (argc != 2)
v7fs_usage();
pathadj(argv[0], canon_dev);
args->endian = endian;
args->fspec = canon_dev;
pathadj(argv[1], canon_dir);
}
static void
v7fs_usage(void)
{
fprintf(stderr, "usage: \n %s [-o options] [-B endian] special node\n",
getprogname());
exit(EXIT_FAILURE);
}