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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#define LOFS
#define MNTTYPE_LOFS "lofs"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libintl.h>
#include <errno.h>
#include <sys/fstyp.h>
#include <sys/fsid.h>
#include <sys/mntent.h>
#include <sys/mnttab.h>
#include <sys/mount.h>
#include <sys/signal.h>
#include <sys/stat.h>
#include <fslib.h>
#define RET_OK 0
/*
* /sbin/mount and the fs-local method understand this exit code to
* mean that all the mount failures were related to lofs mounts. Since
* this program only attempts to mount lofs file systems, when it fails
* it returns this exit status.
*/
#define RET_ERR 111
static void usage(void);
static char optbuf[MAX_MNTOPT_STR] = { '\0', };
static int optsize = 0;
static char fstype[] = MNTTYPE_LOFS;
/*
* usage: mount [-Ormq] [-o options] special mountp
*
* This mount program is exec'ed by /usr/sbin/mount if '-F lofs' is
* specified.
*/
int
main(int argc, char *argv[])
{
int c;
char *special; /* Entity being mounted */
char *mountp; /* Entity being mounted on */
char *savedoptbuf;
char *myname;
char typename[64];
int flags = 0;
int errflag = 0;
int qflg = 0;
myname = strrchr(argv[0], '/');
myname = myname ? myname+1 : argv[0];
(void) snprintf(typename, sizeof (typename), "%s %s", fstype, myname);
argv[0] = typename;
while ((c = getopt(argc, argv, "o:rmOq")) != EOF) {
switch (c) {
case '?':
errflag++;
break;
case 'o':
if (strlcpy(optbuf, optarg, sizeof (optbuf)) >=
sizeof (optbuf)) {
(void) fprintf(stderr,
gettext("%s: Invalid argument: %s\n"),
myname, optarg);
return (2);
}
optsize = strlen(optbuf);
break;
case 'O':
flags |= MS_OVERLAY;
break;
case 'r':
flags |= MS_RDONLY;
break;
case 'm':
flags |= MS_NOMNTTAB;
break;
case 'q':
qflg = 1;
break;
default:
usage();
}
}
if ((argc - optind != 2) || errflag) {
usage();
}
special = argv[argc - 2];
mountp = argv[argc - 1];
if ((savedoptbuf = strdup(optbuf)) == NULL) {
(void) fprintf(stderr, gettext("%s: out of memory\n"),
myname);
exit(2);
}
if (mount(special, mountp, flags | MS_OPTIONSTR, fstype, NULL, 0,
optbuf, MAX_MNTOPT_STR)) {
(void) fprintf(stderr, "mount: ");
perror(special);
exit(RET_ERR);
}
if (optsize && !qflg)
cmp_requested_to_actual_options(savedoptbuf, optbuf,
special, mountp);
return (0);
}
void
usage(void)
{
(void) fprintf(stderr,
"Usage: mount [-Ormq] [-o options] special mountpoint\n");
exit(RET_ERR);
}
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