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