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 1.2 */ 27 28 #include <sys/types.h> 29 #include <stdio.h> 30 #include <pwd.h> 31 #include <userdefs.h> 32 #include <users.h> 33 34 #include <sys/param.h> 35 36 #ifndef MAXUID 37 #include <limits.h> 38 #define MAXUID UID_MAX 39 #endif 40 41 struct passwd *getpwuid(); 42 43 int 44 valid_uid( uid, pptr ) 45 uid_t uid; 46 struct passwd **pptr; 47 { 48 register struct passwd *t_pptr; 49 50 if( uid <= 0 ) return( INVALID ); 51 if( uid <= DEFRID ) { 52 if( pptr ) *pptr = getpwuid( uid ); 53 54 return( RESERVED ); 55 } 56 57 if( uid > MAXUID ) return( TOOBIG ); 58 59 if( t_pptr = getpwuid( uid ) ) { 60 if( pptr ) *pptr = t_pptr; 61 return( NOTUNIQUE ); 62 } 63 64 return( UNIQUE ); 65 } 66