xref: /titanic_44/usr/src/cmd/oamuser/lib/vgid.c (revision f169c0eae91b2ee787cf8d6dcf8edd9159d4c9e2)
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 1.4 */
27 
28 #include	<sys/types.h>
29 #include	<stdio.h>
30 #include	<grp.h>
31 #include	<users.h>
32 #include	<sys/param.h>
33 #include	<userdefs.h>
34 
35 /*
36 	MAXUID should be in param.h; if it isn't,
37 	try for UID_MAX in limits.h
38 */
39 #ifndef	MAXUID
40 #include	<limits.h>
41 #define	MAXUID	UID_MAX
42 #endif
43 
44 struct group *getgrgid();
45 
46 /*  validate a GID */
47 int
48 valid_gid( gid, gptr )
49 gid_t gid;
50 struct group **gptr;
51 {
52 	register struct group *t_gptr;
53 
54 	if( gid < 0 ) return( INVALID );
55 
56 	if( gid > MAXUID ) return( TOOBIG );
57 
58 	if( t_gptr = getgrgid( gid ) ) {
59 		if( gptr ) *gptr = t_gptr;
60 		return( NOTUNIQUE );
61 	}
62 
63 	if( gid <= DEFGID ) {
64 		if( gptr ) *gptr = getgrgid( gid );
65 		return( RESERVED );
66 	}
67 
68 	return( UNIQUE );
69 }
70