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freebsd/sbin/mount_udf/mount_udf.c
Jaakko Heinonen d325001438 Change checkpath() to not exit on error. This is a prerequisite for
fixing the mount(8) "failok" option.

PR:		163668
Reviewed by:	Garrett Cooper, delphij (previous version)
2012-01-16 19:34:21 +00:00

186 lines
5.1 KiB
C

/*
* Copyright (c) 1992, 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 2002 Scott Long
*
* This code is derived from software contributed to Berkeley
* by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
* Support code is derived from software contributed to Berkeley
* by Atsushi Murai (amurai@spec.co.jp).
*
* 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.
* 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.
*
* $FreeBSD$
*/
/*
* This is just a rip-off of mount_iso9660.c. It's been vastly simplified
* because UDF doesn't take any options at this time.
*/
#include <sys/cdio.h>
#include <sys/file.h>
#include <sys/iconv.h>
#include <sys/param.h>
#include <sys/linker.h>
#include <sys/module.h>
#include <sys/mount.h>
#include <sys/uio.h>
#include <fs/udf/udf_mount.h>
#include <err.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
#include "mntopts.h"
static struct mntopt mopts[] = {
MOPT_STDOPTS,
MOPT_UPDATE,
MOPT_END
};
int set_charset(char **, char **, const char *);
void usage(void);
int
main(int argc, char **argv)
{
struct iovec iov[12];
int ch, i, mntflags, opts, udf_flags;
char *dev, *dir, mntpath[MAXPATHLEN];
char *cs_disk, *cs_local;
int verbose;
i = mntflags = opts = udf_flags = verbose = 0;
cs_disk = cs_local = NULL;
while ((ch = getopt(argc, argv, "o:vC:")) != -1)
switch (ch) {
case 'o':
getmntopts(optarg, mopts, &mntflags, &opts);
break;
case 'v':
verbose++;
break;
case 'C':
if (set_charset(&cs_disk, &cs_local, optarg) == -1)
err(EX_OSERR, "udf_iconv");
udf_flags |= UDFMNT_KICONV;
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc != 2)
usage();
dev = argv[0];
dir = argv[1];
/*
* Resolve the mountpoint with realpath(3) and remove unnecessary
* slashes from the devicename if there are any.
*/
if (checkpath(dir, mntpath) != 0)
err(EX_USAGE, "%s", mntpath);
(void)rmslashes(dev, dev);
/*
* UDF file systems are not writeable.
*/
mntflags |= MNT_RDONLY;
iov[i].iov_base = "fstype";
iov[i++].iov_len = sizeof("fstype");
iov[i].iov_base = "udf";
iov[i].iov_len = strlen(iov[i].iov_base) + 1;
i++;
iov[i].iov_base = "fspath";
iov[i++].iov_len = sizeof("fspath");
iov[i].iov_base = mntpath;
iov[i++].iov_len = strlen(mntpath) + 1;
iov[i].iov_base = "from";
iov[i++].iov_len = sizeof("from");
iov[i].iov_base = dev;
iov[i++].iov_len = strlen(dev) + 1;
iov[i].iov_base = "flags";
iov[i++].iov_len = sizeof("flags");
iov[i].iov_base = &udf_flags;
iov[i++].iov_len = sizeof(udf_flags);
if (udf_flags & UDFMNT_KICONV) {
iov[i].iov_base = "cs_disk";
iov[i++].iov_len = sizeof("cs_disk");
iov[i].iov_base = cs_disk;
iov[i++].iov_len = strlen(cs_disk) + 1;
iov[i].iov_base = "cs_local";
iov[i++].iov_len = sizeof("cs_local");
iov[i].iov_base = cs_local;
iov[i++].iov_len = strlen(cs_local) + 1;
}
if (nmount(iov, i, mntflags) < 0)
err(1, "%s", dev);
exit(0);
}
int
set_charset(char **cs_disk, char **cs_local, const char *localcs)
{
int error;
if (modfind("udf_iconv") < 0)
if (kldload("udf_iconv") < 0 || modfind("udf_iconv") < 0) {
warnx( "cannot find or load \"udf_iconv\" kernel module");
return (-1);
}
if ((*cs_disk = malloc(ICONV_CSNMAXLEN)) == NULL)
return (-1);
if ((*cs_local = malloc(ICONV_CSNMAXLEN)) == NULL)
return (-1);
strncpy(*cs_disk, ENCODING_UNICODE, ICONV_CSNMAXLEN);
strncpy(*cs_local, localcs, ICONV_CSNMAXLEN);
error = kiconv_add_xlat16_cspairs(*cs_disk, *cs_local);
if (error)
return (-1);
return (0);
}
void
usage(void)
{
(void)fprintf(stderr,
"usage: mount_udf [-v] [-o options] [-C charset] special node\n");
exit(EX_USAGE);
}