xref: /illumos-gate/usr/src/cmd/oamuser/lib/file.c (revision 7c478bd95313f5f23a4c958a745db2134aa0324)
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 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23*7c478bd9Sstevel@tonic-gate /*	  All Rights Reserved  	*/
24*7c478bd9Sstevel@tonic-gate 
25*7c478bd9Sstevel@tonic-gate 
26*7c478bd9Sstevel@tonic-gate #ident	"%Z%%M%	%I%	%E% SMI"       /* SVr4.0 1.3 */
27*7c478bd9Sstevel@tonic-gate 
28*7c478bd9Sstevel@tonic-gate #include	<sys/types.h>
29*7c478bd9Sstevel@tonic-gate #include	<sys/stat.h>
30*7c478bd9Sstevel@tonic-gate 
31*7c478bd9Sstevel@tonic-gate int
32*7c478bd9Sstevel@tonic-gate check_perm( statbuf, uid, gid, perm )
33*7c478bd9Sstevel@tonic-gate struct stat statbuf;
34*7c478bd9Sstevel@tonic-gate uid_t uid;
35*7c478bd9Sstevel@tonic-gate gid_t gid;
36*7c478bd9Sstevel@tonic-gate mode_t perm;
37*7c478bd9Sstevel@tonic-gate {
38*7c478bd9Sstevel@tonic-gate 	int fail = -1;	/* assume no permission at onset */
39*7c478bd9Sstevel@tonic-gate 
40*7c478bd9Sstevel@tonic-gate 	/* Make sure we're dealing with a directory */
41*7c478bd9Sstevel@tonic-gate 	if( S_ISDIR( statbuf.st_mode )) {
42*7c478bd9Sstevel@tonic-gate 
43*7c478bd9Sstevel@tonic-gate 		/*
44*7c478bd9Sstevel@tonic-gate 		 * Have a directory, so make sure user has permission
45*7c478bd9Sstevel@tonic-gate 		 * by the various possible methods to this directory.
46*7c478bd9Sstevel@tonic-gate 		 */
47*7c478bd9Sstevel@tonic-gate 		if( (statbuf.st_uid == uid) &&
48*7c478bd9Sstevel@tonic-gate 		    (statbuf.st_mode & (perm << 6)) == (perm << 6) )
49*7c478bd9Sstevel@tonic-gate 			fail = 0;
50*7c478bd9Sstevel@tonic-gate 		else
51*7c478bd9Sstevel@tonic-gate 		if( (statbuf.st_gid == gid) &&
52*7c478bd9Sstevel@tonic-gate 		    (statbuf.st_mode & (perm << 3)) == (perm << 3) )
53*7c478bd9Sstevel@tonic-gate 			fail = 0;
54*7c478bd9Sstevel@tonic-gate 		else
55*7c478bd9Sstevel@tonic-gate 		if( (statbuf.st_mode & perm) == perm )
56*7c478bd9Sstevel@tonic-gate 			fail = 0;
57*7c478bd9Sstevel@tonic-gate 	}
58*7c478bd9Sstevel@tonic-gate 
59*7c478bd9Sstevel@tonic-gate 	return( fail );
60*7c478bd9Sstevel@tonic-gate }
61