1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  *	auto_mnttab.c
24*7c478bd9Sstevel@tonic-gate  *
25*7c478bd9Sstevel@tonic-gate  *	Copyright (c) 1988-1999 Sun Microsystems Inc
26*7c478bd9Sstevel@tonic-gate  *	All Rights Reserved.
27*7c478bd9Sstevel@tonic-gate  */
28*7c478bd9Sstevel@tonic-gate 
29*7c478bd9Sstevel@tonic-gate #include <stdio.h>
30*7c478bd9Sstevel@tonic-gate #include <sys/mnttab.h>
31*7c478bd9Sstevel@tonic-gate #include <sys/mkdev.h>
32*7c478bd9Sstevel@tonic-gate #include "automount.h"
33*7c478bd9Sstevel@tonic-gate 
34*7c478bd9Sstevel@tonic-gate static mutex_t mnttab_lock = DEFAULTMUTEX;
35*7c478bd9Sstevel@tonic-gate 
36*7c478bd9Sstevel@tonic-gate /*
37*7c478bd9Sstevel@tonic-gate  * XXX - Serialize calls to fsgetmntlist, so that threads can get consistent
38*7c478bd9Sstevel@tonic-gate  * snapshots of the in-kernel mnttab.  This function should be removed
39*7c478bd9Sstevel@tonic-gate  * once getextmntent is made MT-safe and callers can invoke fsgetmntlist
40*7c478bd9Sstevel@tonic-gate  * directly.
41*7c478bd9Sstevel@tonic-gate  */
42*7c478bd9Sstevel@tonic-gate struct mntlist *
getmntlist()43*7c478bd9Sstevel@tonic-gate getmntlist()
44*7c478bd9Sstevel@tonic-gate {
45*7c478bd9Sstevel@tonic-gate 	struct mntlist *mntl;
46*7c478bd9Sstevel@tonic-gate 
47*7c478bd9Sstevel@tonic-gate 	(void) mutex_lock(&mnttab_lock);
48*7c478bd9Sstevel@tonic-gate 	mntl = fsgetmntlist();
49*7c478bd9Sstevel@tonic-gate 	(void) mutex_unlock(&mnttab_lock);
50*7c478bd9Sstevel@tonic-gate 	return (mntl);
51*7c478bd9Sstevel@tonic-gate }
52*7c478bd9Sstevel@tonic-gate 
53*7c478bd9Sstevel@tonic-gate /*
54*7c478bd9Sstevel@tonic-gate  * Return device number from extmnttab struct
55*7c478bd9Sstevel@tonic-gate  */
56*7c478bd9Sstevel@tonic-gate dev_t
get_devid(mnt)57*7c478bd9Sstevel@tonic-gate get_devid(mnt)
58*7c478bd9Sstevel@tonic-gate 	struct extmnttab *mnt;
59*7c478bd9Sstevel@tonic-gate {
60*7c478bd9Sstevel@tonic-gate 	return (makedev(mnt->mnt_major, mnt->mnt_minor));
61*7c478bd9Sstevel@tonic-gate }
62