NetBSD-5.0.2/sbin/mount_filecore/mount_filecore.c
/* $NetBSD: mount_filecore.c,v 1.19 2008/08/05 20:57:45 pooka Exp $ */
/*
* Copyright (c) 1992, 1993, 1994 The Regents of the University of California.
* All rights reserved.
*
* This code is contains code contributed to the NetBSD project by
* Christopher G. Demetriou
*
* 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.
*
* mount_filecore.c 1.1 1998/6/26
*/
/*
* Copyright (c) 1998 Andrew McMurry
*
* This code is contains code contributed to the NetBSD project by
* Christopher G. Demetriou
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*
* mount_filecore.c 1.1 1998/6/26
*/
#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1992, 1993, 1994\
The Regents of the University of California.\
Copyright (c) 1998 Andrew McMurry. All rights reserved.");
#endif /* not lint */
#include <sys/param.h>
#include <sys/mount.h>
#include <err.h>
#include <grp.h>
#include <pwd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <util.h>
#include <filecorefs/filecore_mount.h>
#include <mntopts.h>
#include "mountprog.h"
static const struct mntopt mopts[] = {
MOPT_STDOPTS,
MOPT_UPDATE,
MOPT_GETARGS,
MOPT_NULL,
};
int mount_filecore(int argc, char **argv);
static void usage(void);
#ifndef MOUNT_NOMAIN
int
main(int argc, char **argv)
{
return mount_filecore(argc, argv);
}
#endif
int
mount_filecore(int argc, char **argv)
{
struct filecore_args args;
int ch, mntflags, opts, useuid;
char *dev, *dir, canon_dev[MAXPATHLEN], canon_dir[MAXPATHLEN];
mntoptparse_t mp;
mntflags = opts = 0;
useuid = 1;
args.uid = 0;
args.gid = 0;
while ((ch = getopt(argc, argv, "anRfu:g:o:")) != -1)
switch (ch) {
case 'a':
args.flags |= FILECOREMNT_ALLACCESS;
break;
case 'n':
args.flags |= FILECOREMNT_OWNACCESS;
break;
case 'R':
args.flags |= FILECOREMNT_OWNREAD;
break;
case 'f':
args.flags |= FILECOREMNT_FILETYPE;
break;
case 'u':
args.uid = a_uid(optarg);
useuid = 0;
break;
case 'g':
args.gid = a_gid(optarg);
useuid = 0;
break;
case 'o':
mp = getmntopts(optarg, mopts, &mntflags, 0);
if (mp == NULL)
err(1, "getmntopts");
freemntopts(mp);
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc != 2)
usage();
dev = argv[0];
dir = argv[1];
if (realpath(dev, canon_dev) == NULL) /* Check device path */
err(1, "realpath %s", dev);
if (strncmp(dev, canon_dev, MAXPATHLEN)) {
warnx("\"%s\" is a relative path.", dev);
dev = canon_dev;
warnx("using \"%s\" instead.", dev);
}
if (realpath(dir, canon_dir) == NULL) /* Check mounton path */
err(1, "realpath %s", dir);
if (strncmp(dir, canon_dir, MAXPATHLEN)) {
warnx("\"%s\" is a relative path.", dir);
dir = canon_dir;
warnx("using \"%s\" instead.", dir);
}
#define DEFAULT_ROOTUID -2
/*
* FILECORE filesystems are not writable.
*/
mntflags |= MNT_RDONLY;
if (useuid) args.flags |= FILECOREMNT_USEUID;
args.fspec = dev;
args.flags = opts;
if (mount(MOUNT_FILECORE, dir, mntflags, &args, sizeof args) == -1)
err(1, "%s on %s", dev, dir);
if (mntflags & MNT_GETARGS) {
char buf[1024];
(void)snprintb(buf, sizeof(buf), FILECOREMNT_BITS, args.flags);
printf("uid=%d, gid=%d, flags=%s\n", args.uid, args.gid, buf);
}
exit(0);
}
static void
usage(void)
{
(void)fprintf(stderr,
"usage: mount_filecore [-afnR] [-g gid] [-o options] [-u uid] special node\n");
exit(1);
}