[thirdparty/util-linux.git] / shlibs / mount / samples / mount.c

/*
 * mount(8) -- mount a filesystem
 *
 * Copyright (C) 2011 Red Hat, Inc. All rights reserved.
 * Written by Karel Zak <kzak@redhat.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it would be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <getopt.h>
#include <unistd.h>
#include <sys/types.h>

#include <libmount.h>

#include "nls.h"
#include "c.h"

/*** TODO: DOCS:
 *
 *  -p, --pass-fd	is unsupported
 *  --guess-fstype	is unsupported
 *  -c =                --no-canonicalize
 */

/* exit status */
#define EX_SUCCESS	0
#define EX_USAGE	1	/* incorrect invocation or permission */
#define EX_SYSERR	2	/* out of memory, cannot fork, ... */
#define EX_SOFTWARE	4	/* internal mount bug or wrong version */
#define EX_USER		8	/* user interrupt */
#define EX_FILEIO      16	/* problems writing, locking, ... mtab/fstab */
#define EX_FAIL	       32	/* mount failure */
#define EX_SOMEOK      64	/* some mount succeeded */

static struct libmnt_lock *lock;

static void lock_atexit_cleanup(void)
{
	if (lock)
		mnt_unlock_file(lock);
}

static void __attribute__((__noreturn__)) exit_non_root(const char *option)
{
	const uid_t ruid = getuid();
	const uid_t euid = geteuid();

	if (ruid == 0 && euid != 0) {
		/* user is root, but setuid to non-root */
		if (option)
			errx(EX_USAGE, _("only root can use \"--%s\" option "
					 "(effective UID is %u)"),
					option, euid);
		errx(EX_USAGE, _("only root can do that "
				 "(effective UID is %u)"), euid);
	}
	if (option)
		errx(EX_USAGE, _("only root can use \"--%s\" option"), option);
	errx(EX_USAGE, _("only root can do that"));
}

static void __attribute__((__noreturn__)) print_version(void)
{
	const char *ver = NULL;

	mnt_get_library_version(&ver);

	printf("%s from %s (libmount %s)\n",
			program_invocation_short_name, PACKAGE_STRING, ver);
	exit(EX_SUCCESS);
}

static const char *opt_to_longopt(int c, const struct option *opts)
{
	const struct option *o;

	for (o = opts; o->name; o++)
		if (o->val == c)
			return o->name;
	return NULL;
}

static int print_all(struct libmnt_context *cxt, char *pattern, int show_label)
{
	int rc = 0;
	struct libmnt_table *tb;
	struct libmnt_iter *itr;
	struct libmnt_fs *fs;
	struct libmnt_cache *cache = NULL;

	rc = mnt_context_get_mtab(cxt, &tb);
	if (rc)
		goto done;

	itr = mnt_new_iter(MNT_ITER_FORWARD);
	if (!itr)
		goto done;

	if (show_label)
		cache = mnt_new_cache();

	while(mnt_table_next_fs(tb, itr, &fs) == 0) {
		const char *type = mnt_fs_get_fstype(fs);
		const char *src = mnt_fs_get_source(fs);
		const char *optstr = mnt_fs_get_options(fs);

		if (type && pattern && !mnt_match_fstype(type, pattern))
			continue;

		/* TODO: print loop backing file instead of device name */

		printf ("%s on %s", src ? : "none", mnt_fs_get_target(fs));
		if (type)
			printf (" type %s", type);
		if (optstr)
			printf (" (%s)", optstr);
		if (show_label && src) {
			char *lb = mnt_cache_find_tag_value(cache, src, "LABEL");
			if (lb)
				printf (" [%s]", lb);
		}
		fputc('\n', stdout);
	}
done:
	mnt_free_cache(cache);
	mnt_free_iter(itr);
	return rc;
}

static void __attribute__((__noreturn__)) usage(FILE *out)
{
	fprintf(out, _("Usage:\n"
		" %1$s [-lhV]\n"
		" %1$s -a [options]\n"
		" %1$s [options] <source> | <directory>\n"
		" %1$s [options] <source> <directory>\n"
		" %1$s <operation> <mountpoint> [<target>]\n"),
		program_invocation_short_name);

	fprintf(out, _(
	"\nOptions:\n"
	" -a, --all               mount all filesystems mentioned in fstab\n"
	" -f, --fake              dry run, skip mount(2) syscall\n"
	" -F, --fork              fork off for each device (use with -a)\n"
	" -h, --help              this help\n"
	" -n, --no-mtab           don't write to /etc/mtab\n"
	" -r, --read-only         mount the filesystem read-only (same as -o ro)\n"
	" -v, --verbose           verbose mode\n"
	" -V, --version           print version string\n"
	" -w, --read-write        mount the filesystem read-write (default)\n"
	" -o, --options <list>    comma separated string of mount options\n"
	" -O, --test-opts <list>  limit the set of filesystems (use with -a)\n"
	" -t, --types <list>      indicate the filesystem type\n"
	" -c, --no-canonicalize   don't canonicalize paths\n"
	" -i, --internal-only     don't call the mount.<type> helpers\n"
	" -l, --show-labels       lists all mounts with LABELs\n"

	"\nSource:\n"
	" -L, --label <label>     synonym for LABEL=<label>\n"
	" -U, --uuid <uuid>       synonym for UUID=<uuid>\n"
	" LABEL=<label>           specifies device by filesystem label\n"
	" UUID=<uuid>             specifies device by filesystem UUID\n"
	" <device>                specifies device by path\n"
	" <directory>             mountpoint for bind mounts (see --bind/rbind)\n"
	" <file>                  regular file for loopdev setup\n"

	"\nOperations:\n"
	" -B, --bind              mount a subtree somewhere else (same as -o bind)\n"
	" -M, --move              move a subtree to some other place\n"
	" -R, --rbind             mount a subtree and all submounts somewhere else\n"
	" --make-shared           mark a subtree as shared\n"
	" --make-slave            mark a subtree as slave\n"
	" --make-private          mark a subtree as private\n"
	" --make-unbindable       mark a subtree as unbindable\n"
	" --make-rshared          recursively mark a whole subtree as shared\n"
	" --make-rslave           recursively mark a whole subtree as slave\n"
	" --make-rprivate         recursively mark a whole subtree as private\n"
	" --make-runbindable      recursively mark a whole subtree as unbindable\n"
	));

	fprintf(out, _("\nFor more information see mount(8).\n"));

	exit(out == stderr ? EX_USAGE : EX_SUCCESS);
}

int main(int argc, char **argv)
{
	int c, rc = EXIT_FAILURE, all = 0, show_labels = 0;
	struct libmnt_context *cxt;
	char *source = NULL, *srcbuf = NULL;
	char *types = NULL;
	unsigned long oper = 0;

	static const struct option longopts[] = {
		{ "all", 0, 0, 'a' },
		{ "fake", 0, 0, 'f' },
		{ "fork", 0, 0, 'F' },
		{ "help", 0, 0, 'h' },
		{ "no-mtab", 0, 0, 'n' },
		{ "read-only", 0, 0, 'r' },
		{ "ro", 0, 0, 'r' },
		{ "verbose", 0, 0, 'v' },
		{ "version", 0, 0, 'V' },
		{ "read-write", 0, 0, 'w' },
		{ "rw", 0, 0, 'w' },
		{ "options", 1, 0, 'o' },
		{ "test-opts", 1, 0, 'O' },
		{ "types", 1, 0, 't' },
		{ "uuid", 1, 0, 'U' },
		{ "label", 1, 0, 'L'},
		{ "bind", 0, 0, 'B' },
		{ "move", 0, 0, 'M' },
		{ "rbind", 0, 0, 'R' },
		{ "make-shared", 0, 0, 136 },
		{ "make-slave", 0, 0, 137 },
		{ "make-private", 0, 0, 138 },
		{ "make-unbindable", 0, 0, 139 },
		{ "make-rshared", 0, 0, 140 },
		{ "make-rslave", 0, 0, 141 },
		{ "make-rprivate", 0, 0, 142 },
		{ "make-runbindable", 0, 0, 143 },
		{ "no-canonicalize", 0, 0, 'c' },
		{ "internal-only", 0, 0, 'i' },
		{ "show-labels", 0, 0, 'l' },
		{ NULL, 0, 0, 0 }
	};

	setlocale(LC_ALL, "");
	bindtextdomain(PACKAGE, LOCALEDIR);
	textdomain(PACKAGE);

	mnt_init_debug(0);
	cxt = mnt_new_context();
	if (!cxt)
		err(EX_SYSERR, _("libmount context allocation failed"));

	while ((c = getopt_long(argc, argv, "aBcfFhilL:Mno:O:rRsU:vVwt:",
					longopts, NULL)) != -1) {

		/* only few options are allowed for non-root users */
		if (mnt_context_is_restricted(cxt) && !strchr("hlLUVv", c))
			exit_non_root(opt_to_longopt(c, longopts));

		switch(c) {
		case 'a':
			all = 1;
			err(EX_FAIL, "-a not implemented yet");	/* TODO */
			break;
		case 'c':
			mnt_context_disable_canonicalize(cxt, TRUE);
			break;
		case 'f':
			mnt_context_enable_fake(cxt, TRUE);
			break;
		case 'F':
			err(EX_FAIL, "-F not implemented yet");	/* TODO */
			break;
		case 'h':
			usage(stdout);
			break;
		case 'i':
			mnt_context_disable_helpers(cxt, TRUE);
			break;
		case 'n':
			mnt_context_disable_mtab(cxt, TRUE);
			break;
		case 'r':
			if (mnt_context_append_options(cxt, "ro"))
				err(EX_SYSERR, _("failed to append options"));
			break;
		case 'v':
			mnt_context_enable_verbose(cxt, TRUE);
			break;
		case 'V':
			print_version();
			break;
		case 'w':
			if (mnt_context_append_options(cxt, "rw"))
				err(EX_SYSERR, _("failed to append options"));
			break;
		case 'o':
			if (mnt_context_append_options(cxt, optarg))
				err(EX_SYSERR, _("failed to append options"));
			break;
		case 'O':
			if (mnt_context_set_options_pattern(cxt, optarg))
				err(EX_SYSERR, _("failed to set options pattern"));
			break;
		case 'L':
		case 'U':
			if (source)
				errx(EX_USAGE, _("only one <source> may be specified"));
			if (asprintf(&srcbuf, "%s=\"%s\"",
				     c == 'L' ? "LABEL" : "UUID", optarg) <= 0)
				err(EX_SYSERR, _("failed to allocate source buffer"));
			source = srcbuf;
			break;
		case 'l':
			show_labels = 1;
			break;
		case 't':
			types = optarg;
			break;
		case 's':
			mnt_context_enable_sloppy(cxt, TRUE);
			break;
		case 'B':
			oper = MS_BIND;
			break;
		case 'M':
			oper = MS_MOVE;
			break;
		case 'R':
			oper = (MS_BIND | MS_REC);
			break;
		case 136:
			oper = MS_SHARED;
			break;
		case 137:
			oper = MS_SLAVE;
			break;
		case 138:
			oper = MS_PRIVATE;
			break;
		case 139:
			oper = MS_UNBINDABLE;
			break;
		case 140:
			oper = (MS_SHARED | MS_REC);
			break;
		case 141:
			oper = (MS_SLAVE | MS_REC);
			break;
		case 142:
			oper = (MS_PRIVATE | MS_REC);
			break;
		case 143:
			oper = (MS_UNBINDABLE | MS_REC);
			break;
		default:
			usage(stderr);
			break;
		}
	}

	argc -= optind;
	argv += optind;

	if (!source && !argc && !all) {
		if (oper)
			usage(stderr);
		if (!print_all(cxt, types, show_labels))
			rc = EX_SUCCESS;
		goto done;
	}

	if (oper && (types || all || source))
		usage(stderr);

	if (types && (strchr(types, ',') || strncmp(types, "no", 2) == 0))
		mnt_context_set_fstype_pattern(cxt, types);
	else if (types)
		mnt_context_set_fstype(cxt, types);

	if (argc == 0 && source) {
		/* mount -L|-U */
		mnt_context_set_source(cxt, source);

	} else if (argc == 1) {
		/* mount [-L|-U] <target>
		 * mount <source|target> */
		if (source) {
			if (mnt_context_is_restricted(cxt))
				exit_non_root(NULL);
			 mnt_context_set_source(cxt, source);
		}
		mnt_context_set_target(cxt, argv[0]);

	} else if (argc == 2 && !source) {
		/* mount <source> <target> */
		if (mnt_context_is_restricted(cxt))
			exit_non_root(NULL);
		mnt_context_set_source(cxt, argv[0]);
		mnt_context_set_target(cxt, argv[1]);
	} else
		usage(stderr);

	if (oper)
		mnt_context_set_mflags(cxt, oper);

	lock = mnt_context_get_lock(cxt);
	if (lock)
		atexit(lock_atexit_cleanup);

	rc = mnt_context_mount(cxt);
	if (rc) {
		/* TODO: call mnt_context_strerror() */
		rc = EX_FAIL;
	} else
		rc = EX_SUCCESS;
done:
	free(srcbuf);
	mnt_free_context(cxt);
	return rc;
}
Commit	Line	Data
97073441 KZ	1	/*
	2	* mount(8) -- mount a filesystem
	3	*
	4	* Copyright (C) 2011 Red Hat, Inc. All rights reserved.
	5	* Written by Karel Zak <kzak@redhat.com>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it would be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software Foundation,
	19	* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	20	*/
	21
	22	#include <stdio.h>
	23	#include <stdlib.h>
	24	#include <errno.h>
	25	#include <string.h>
	26	#include <getopt.h>
97073441 KZ	27	#include <unistd.h>
	28	#include <sys/types.h>
	29
2a1f429a KZ	30	#include <libmount.h>
2a1f429a KZ	31
97073441 KZ	32	#include "nls.h"
	33	#include "c.h"
	34
	35	/*** TODO: DOCS:
	36	*
	37	* -p, --pass-fd is unsupported
	38	* --guess-fstype is unsupported
	39	* -c = --no-canonicalize
	40	*/
	41
	42	/* exit status */
	43	#define EX_SUCCESS 0
	44	#define EX_USAGE 1 /* incorrect invocation or permission */
	45	#define EX_SYSERR 2 /* out of memory, cannot fork, ... */
	46	#define EX_SOFTWARE 4 /* internal mount bug or wrong version */
	47	#define EX_USER 8 /* user interrupt */
	48	#define EX_FILEIO 16 /* problems writing, locking, ... mtab/fstab */
	49	#define EX_FAIL 32 /* mount failure */
	50	#define EX_SOMEOK 64 /* some mount succeeded */
	51
68164f6c	52	static struct libmnt_lock *lock;
97073441 KZ	53
	54	static void lock_atexit_cleanup(void)
	55	{
	56	if (lock)
	57	mnt_unlock_file(lock);
	58	}
	59
	60	static void __attribute__((__noreturn__)) exit_non_root(const char *option)
	61	{
	62	const uid_t ruid = getuid();
	63	const uid_t euid = geteuid();
	64
	65	if (ruid == 0 && euid != 0) {
	66	/* user is root, but setuid to non-root */
	67	if (option)
	68	errx(EX_USAGE, _("only root can use \"--%s\" option "
	69	"(effective UID is %u)"),
	70	option, euid);
	71	errx(EX_USAGE, _("only root can do that "
	72	"(effective UID is %u)"), euid);
	73	}
	74	if (option)
	75	errx(EX_USAGE, _("only root can use \"--%s\" option"), option);
	76	errx(EX_USAGE, _("only root can do that"));
	77	}
	78
	79	static void __attribute__((__noreturn__)) print_version(void)
	80	{
	81	const char *ver = NULL;
	82
	83	mnt_get_library_version(&ver);
	84
	85	printf("%s from %s (libmount %s)\n",
	86	program_invocation_short_name, PACKAGE_STRING, ver);
	87	exit(EX_SUCCESS);
	88	}
	89
	90	static const char opt_to_longopt(int c, const struct option opts)
	91	{
	92	const struct option *o;
	93
	94	for (o = opts; o->name; o++)
	95	if (o->val == c)
	96	return o->name;
	97	return NULL;
	98	}
	99
68164f6c	100	static int print_all(struct libmnt_context cxt, char pattern, int show_label)
97073441 KZ	101	{
97073441 KZ	102	int rc = 0;
68164f6c KZ	103	struct libmnt_table *tb;
	104	struct libmnt_iter *itr;
	105	struct libmnt_fs *fs;
	106	struct libmnt_cache *cache = NULL;
97073441 KZ	107
	108	rc = mnt_context_get_mtab(cxt, &tb);
	109	if (rc)
	110	goto done;
	111
	112	itr = mnt_new_iter(MNT_ITER_FORWARD);
	113	if (!itr)
	114	goto done;
	115
	116	if (show_label)
	117	cache = mnt_new_cache();
	118
68164f6c	119	while(mnt_table_next_fs(tb, itr, &fs) == 0) {
97073441 KZ	120	const char *type = mnt_fs_get_fstype(fs);
97073441 KZ	121	const char *src = mnt_fs_get_source(fs);
7cf389f7	122	const char *optstr = mnt_fs_get_options(fs);
97073441 KZ	123
	124	if (type && pattern && !mnt_match_fstype(type, pattern))
	125	continue;
	126
	127	/* TODO: print loop backing file instead of device name */
	128
	129	printf ("%s on %s", src ? : "none", mnt_fs_get_target(fs));
	130	if (type)
	131	printf (" type %s", type);
	132	if (optstr)
	133	printf (" (%s)", optstr);
	134	if (show_label && src) {
	135	char *lb = mnt_cache_find_tag_value(cache, src, "LABEL");
	136	if (lb)
	137	printf (" [%s]", lb);
	138	}
	139	fputc('\n', stdout);
	140	}
	141	done:
	142	mnt_free_cache(cache);
b192b7b9	143	mnt_free_iter(itr);
97073441 KZ	144	return rc;
	145	}
	146
	147	static void __attribute__((__noreturn__)) usage(FILE *out)
	148	{
	149	fprintf(out, _("Usage:\n"
	150	" %1$s [-lhV]\n"
	151	" %1$s -a [options]\n"
	152	" %1$s [options] <source> \| <directory>\n"
	153	" %1$s [options] <source> <directory>\n"
	154	" %1$s <operation> <mountpoint> [<target>]\n"),
	155	program_invocation_short_name);
	156
	157	fprintf(out, _(
	158	"\nOptions:\n"
	159	" -a, --all mount all filesystems mentioned in fstab\n"
	160	" -f, --fake dry run, skip mount(2) syscall\n"
	161	" -F, --fork fork off for each device (use with -a)\n"
	162	" -h, --help this help\n"
	163	" -n, --no-mtab don't write to /etc/mtab\n"
	164	" -r, --read-only mount the filesystem read-only (same as -o ro)\n"
	165	" -v, --verbose verbose mode\n"
	166	" -V, --version print version string\n"
	167	" -w, --read-write mount the filesystem read-write (default)\n"
	168	" -o, --options <list> comma separated string of mount options\n"
	169	" -O, --test-opts <list> limit the set of filesystems (use with -a)\n"
	170	" -t, --types <list> indicate the filesystem type\n"
	171	" -c, --no-canonicalize don't canonicalize paths\n"
	172	" -i, --internal-only don't call the mount.<type> helpers\n"
	173	" -l, --show-labels lists all mounts with LABELs\n"
	174
	175	"\nSource:\n"
	176	" -L, --label <label> synonym for LABEL=<label>\n"
	177	" -U, --uuid <uuid> synonym for UUID=<uuid>\n"
	178	" LABEL=<label> specifies device by filesystem label\n"
	179	" UUID=<uuid> specifies device by filesystem UUID\n"
	180	" <device> specifies device by path\n"
	181	" <directory> mountpoint for bind mounts (see --bind/rbind)\n"
	182	" <file> regular file for loopdev setup\n"
	183
	184	"\nOperations:\n"
	185	" -B, --bind mount a subtree somewhere else (same as -o bind)\n"
	186	" -M, --move move a subtree to some other place\n"
	187	" -R, --rbind mount a subtree and all submounts somewhere else\n"
	188	" --make-shared mark a subtree as shared\n"
	189	" --make-slave mark a subtree as slave\n"
	190	" --make-private mark a subtree as private\n"
	191	" --make-unbindable mark a subtree as unbindable\n"
	192	" --make-rshared recursively mark a whole subtree as shared\n"
	193	" --make-rslave recursively mark a whole subtree as slave\n"
	194	" --make-rprivate recursively mark a whole subtree as private\n"
	195	" --make-runbindable recursively mark a whole subtree as unbindable\n"
	196	));
	197
	198	fprintf(out, _("\nFor more information see mount(8).\n"));
	199
	200	exit(out == stderr ? EX_USAGE : EX_SUCCESS);
	201	}
	202
	203	int main(int argc, char **argv)
	204	{
	205	int c, rc = EXIT_FAILURE, all = 0, show_labels = 0;
68164f6c	206	struct libmnt_context *cxt;
97073441 KZ	207	char source = NULL, srcbuf = NULL;
	208	char *types = NULL;
	209	unsigned long oper = 0;
	210
6c7d5ae9	211	static const struct option longopts[] = {
97073441 KZ	212	{ "all", 0, 0, 'a' },
	213	{ "fake", 0, 0, 'f' },
	214	{ "fork", 0, 0, 'F' },
	215	{ "help", 0, 0, 'h' },
	216	{ "no-mtab", 0, 0, 'n' },
	217	{ "read-only", 0, 0, 'r' },
	218	{ "ro", 0, 0, 'r' },
	219	{ "verbose", 0, 0, 'v' },
	220	{ "version", 0, 0, 'V' },
	221	{ "read-write", 0, 0, 'w' },
	222	{ "rw", 0, 0, 'w' },
	223	{ "options", 1, 0, 'o' },
	224	{ "test-opts", 1, 0, 'O' },
	225	{ "types", 1, 0, 't' },
	226	{ "uuid", 1, 0, 'U' },
	227	{ "label", 1, 0, 'L'},
	228	{ "bind", 0, 0, 'B' },
	229	{ "move", 0, 0, 'M' },
	230	{ "rbind", 0, 0, 'R' },
	231	{ "make-shared", 0, 0, 136 },
	232	{ "make-slave", 0, 0, 137 },
	233	{ "make-private", 0, 0, 138 },
	234	{ "make-unbindable", 0, 0, 139 },
	235	{ "make-rshared", 0, 0, 140 },
	236	{ "make-rslave", 0, 0, 141 },
	237	{ "make-rprivate", 0, 0, 142 },
	238	{ "make-runbindable", 0, 0, 143 },
	239	{ "no-canonicalize", 0, 0, 'c' },
	240	{ "internal-only", 0, 0, 'i' },
	241	{ "show-labels", 0, 0, 'l' },
	242	{ NULL, 0, 0, 0 }
	243	};
	244
	245	setlocale(LC_ALL, "");
	246	bindtextdomain(PACKAGE, LOCALEDIR);
	247	textdomain(PACKAGE);
	248
	249	mnt_init_debug(0);
	250	cxt = mnt_new_context();
	251	if (!cxt)
	252	err(EX_SYSERR, _("libmount context allocation failed"));
	253
	254	while ((c = getopt_long(argc, argv, "aBcfFhilL:Mno:O:rRsU:vVwt:",
	255	longopts, NULL)) != -1) {
	256
	257	/* only few options are allowed for non-root users */
	258	if (mnt_context_is_restricted(cxt) && !strchr("hlLUVv", c))
	259	exit_non_root(opt_to_longopt(c, longopts));
	260
	261	switch(c) {
	262	case 'a':
	263	all = 1;
	264	err(EX_FAIL, "-a not implemented yet"); /* TODO */
	265	break;
	266	case 'c':
	267	mnt_context_disable_canonicalize(cxt, TRUE);
	268	break;
	269	case 'f':
	270	mnt_context_enable_fake(cxt, TRUE);
	271	break;
	272	case 'F':
	273	err(EX_FAIL, "-F not implemented yet"); /* TODO */
	274	break;
	275	case 'h':
276	usage(stdout);
277	break;
278	case 'i':
279	mnt_context_disable_helpers(cxt, TRUE);
280	break;
281	case 'n':
282	mnt_context_disable_mtab(cxt, TRUE);
283	break;
284	case 'r':
285	if (mnt_context_append_options(cxt, "ro"))
286	err(EX_SYSERR, _("failed to append options"));
287	break;
288	case 'v':
289	mnt_context_enable_verbose(cxt, TRUE);
290	break;
291	case 'V':
292	print_version();
293	break;
294	case 'w':
295	if (mnt_context_append_options(cxt, "rw"))
296	err(EX_SYSERR, _("failed to append options"));
297	break;
298	case 'o':
299	if (mnt_context_append_options(cxt, optarg))
300	err(EX_SYSERR, _("failed to append options"));
301	break;
302	case 'O':
303	if (mnt_context_set_options_pattern(cxt, optarg))
304	err(EX_SYSERR, _("failed to set options pattern"));
305	break;
306	case 'L':
307	case 'U':
308	if (source)
e8ab5ce3	309	errx(EX_USAGE, _("only one <source> may be specified"));
97073441 KZ	310	if (asprintf(&srcbuf, "%s=\"%s\"",
	311	c == 'L' ? "LABEL" : "UUID", optarg) <= 0)
	312	err(EX_SYSERR, _("failed to allocate source buffer"));
	313	source = srcbuf;
	314	break;
	315	case 'l':
	316	show_labels = 1;
	317	break;
	318	case 't':
	319	types = optarg;
	320	break;
	321	case 's':
	322	mnt_context_enable_sloppy(cxt, TRUE);
	323	break;
	324	case 'B':
	325	oper = MS_BIND;
	326	break;
	327	case 'M':
	328	oper = MS_MOVE;
	329	break;
	330	case 'R':
	331	oper = (MS_BIND \| MS_REC);
	332	break;
	333	case 136:
	334	oper = MS_SHARED;
	335	break;
	336	case 137:
	337	oper = MS_SLAVE;
	338	break;
	339	case 138:
	340	oper = MS_PRIVATE;
	341	break;
	342	case 139:
	343	oper = MS_UNBINDABLE;
	344	break;
	345	case 140:
	346	oper = (MS_SHARED \| MS_REC);
	347	break;
	348	case 141:
	349	oper = (MS_SLAVE \| MS_REC);
	350	break;
	351	case 142:
	352	oper = (MS_PRIVATE \| MS_REC);
	353	break;
	354	case 143:
	355	oper = (MS_UNBINDABLE \| MS_REC);
	356	break;
	357	default:
	358	usage(stderr);
	359	break;
	360	}
	361	}
	362
	363	argc -= optind;
	364	argv += optind;
	365
	366	if (!source && !argc && !all) {
	367	if (oper)
	368	usage(stderr);
	369	if (!print_all(cxt, types, show_labels))
	370	rc = EX_SUCCESS;
	371	goto done;
	372	}
	373
374	if (oper && (types \|\| all \|\| source))
375	usage(stderr);
376
377	if (types && (strchr(types, ',') \|\| strncmp(types, "no", 2) == 0))
378	mnt_context_set_fstype_pattern(cxt, types);
379	else if (types)
380	mnt_context_set_fstype(cxt, types);
381
382	if (argc == 0 && source) {
383	/* mount -L\|-U */
384	mnt_context_set_source(cxt, source);
385
386	} else if (argc == 1) {
387	/* mount [-L\|-U] <target>
388	* mount <source\|target> */
389	if (source) {
390	if (mnt_context_is_restricted(cxt))
391	exit_non_root(NULL);
392	mnt_context_set_source(cxt, source);
393	}
394	mnt_context_set_target(cxt, argv[0]);
395
396	} else if (argc == 2 && !source) {
397	/* mount <source> <target> */
398	if (mnt_context_is_restricted(cxt))
399	exit_non_root(NULL);
400	mnt_context_set_source(cxt, argv[0]);
401	mnt_context_set_target(cxt, argv[1]);
402	} else
403	usage(stderr);
404
405	if (oper)
68164f6c	406	mnt_context_set_mflags(cxt, oper);
97073441 KZ	407
	408	lock = mnt_context_get_lock(cxt);
	409	if (lock)
	410	atexit(lock_atexit_cleanup);
	411
cfb9db30	412	rc = mnt_context_mount(cxt);
97073441 KZ	413	if (rc) {
	414	/* TODO: call mnt_context_strerror() */
	415	rc = EX_FAIL;
	416	} else
	417	rc = EX_SUCCESS;
	418	done:
	419	free(srcbuf);
	420	mnt_free_context(cxt);
	421	return rc;
	422	}
	423