1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23/*	  All Rights Reserved  	*/
24
25
26#ident	"%Z%%M%	%I%	%E% SMI"       /* SVr4.0 1.3 */
27
28#include	<sys/types.h>
29#include	<sys/stat.h>
30
31int
32check_perm( statbuf, uid, gid, perm )
33struct stat statbuf;
34uid_t uid;
35gid_t gid;
36mode_t perm;
37{
38	int fail = -1;	/* assume no permission at onset */
39
40	/* Make sure we're dealing with a directory */
41	if( S_ISDIR( statbuf.st_mode )) {
42
43		/*
44		 * Have a directory, so make sure user has permission
45		 * by the various possible methods to this directory.
46		 */
47		if( (statbuf.st_uid == uid) &&
48		    (statbuf.st_mode & (perm << 6)) == (perm << 6) )
49			fail = 0;
50		else
51		if( (statbuf.st_gid == gid) &&
52		    (statbuf.st_mode & (perm << 3)) == (perm << 3) )
53			fail = 0;
54		else
55		if( (statbuf.st_mode & perm) == perm )
56			fail = 0;
57	}
58
59	return( fail );
60}
61