xref: /illumos-gate/usr/src/cmd/oamuser/user/val_lgrp.c (revision a7fe1d5b)
17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
567dbe2beSCasper H.S. Dik  * Common Development and Distribution License (the "License").
667dbe2beSCasper H.S. Dik  * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate  *
87c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate  * and limitations under the License.
127c478bd9Sstevel@tonic-gate  *
137c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate  *
197c478bd9Sstevel@tonic-gate  * CDDL HEADER END
207c478bd9Sstevel@tonic-gate  */
217c478bd9Sstevel@tonic-gate /*
2267dbe2beSCasper H.S. Dik  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
237c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
247c478bd9Sstevel@tonic-gate  */
257c478bd9Sstevel@tonic-gate 
267c478bd9Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
277c478bd9Sstevel@tonic-gate /*	  All Rights Reserved  	*/
287c478bd9Sstevel@tonic-gate 
29*a7fe1d5bSAndy Stormont /*
30*a7fe1d5bSAndy Stormont  * Copyright (c) 2013 RackTop Systems.
31*a7fe1d5bSAndy Stormont  */
32*a7fe1d5bSAndy Stormont 
337c478bd9Sstevel@tonic-gate 
347c478bd9Sstevel@tonic-gate #include	<sys/types.h>
357c478bd9Sstevel@tonic-gate #include	<stdio.h>
3667dbe2beSCasper H.S. Dik #include	<stdlib.h>
377c478bd9Sstevel@tonic-gate #include	<sys/param.h>
3867dbe2beSCasper H.S. Dik #include	<unistd.h>
397c478bd9Sstevel@tonic-gate #include	<users.h>
407c478bd9Sstevel@tonic-gate #include	<userdefs.h>
417c478bd9Sstevel@tonic-gate #include	"messages.h"
427c478bd9Sstevel@tonic-gate 
437c478bd9Sstevel@tonic-gate extern void exit();
447c478bd9Sstevel@tonic-gate extern char *strtok();
457c478bd9Sstevel@tonic-gate 
4667dbe2beSCasper H.S. Dik static gid_t *grplist;
4749335bdeSbasabi static int ngroups_max = 0;
487c478bd9Sstevel@tonic-gate 
497c478bd9Sstevel@tonic-gate /* Validate a list of groups */
507c478bd9Sstevel@tonic-gate int	**
valid_lgroup(char * list,gid_t gid)5149335bdeSbasabi valid_lgroup(char *list, gid_t gid)
527c478bd9Sstevel@tonic-gate {
5349335bdeSbasabi 	int n_invalid = 0, i = 0, j;
547c478bd9Sstevel@tonic-gate 	char *ptr;
557c478bd9Sstevel@tonic-gate 	struct group *g_ptr;
567c478bd9Sstevel@tonic-gate 	int warning;
577c478bd9Sstevel@tonic-gate 	int dup_prim = 0; /* we don't duplicate our primary as a supplemental */
587c478bd9Sstevel@tonic-gate 
597c478bd9Sstevel@tonic-gate 	if( !list || !*list )
607c478bd9Sstevel@tonic-gate 		return( (int **) NULL );
617c478bd9Sstevel@tonic-gate 
6267dbe2beSCasper H.S. Dik 	if (ngroups_max == 0) {
6367dbe2beSCasper H.S. Dik 		ngroups_max = sysconf(_SC_NGROUPS_MAX);
6467dbe2beSCasper H.S. Dik 		grplist = malloc((ngroups_max + 1) * sizeof (gid_t));
6567dbe2beSCasper H.S. Dik 	}
6667dbe2beSCasper H.S. Dik 
67*a7fe1d5bSAndy Stormont 	while ((ptr = strtok((i || n_invalid || dup_prim)? NULL: list, ","))) {
687c478bd9Sstevel@tonic-gate 
697c478bd9Sstevel@tonic-gate 		switch (valid_group(ptr, &g_ptr, &warning)) {
707c478bd9Sstevel@tonic-gate 		case INVALID:
717c478bd9Sstevel@tonic-gate 			errmsg( M_INVALID, ptr, "group id" );
727c478bd9Sstevel@tonic-gate 			n_invalid++;
737c478bd9Sstevel@tonic-gate 			break;
747c478bd9Sstevel@tonic-gate 		case TOOBIG:
757c478bd9Sstevel@tonic-gate 			errmsg( M_TOOBIG, "gid", ptr );
767c478bd9Sstevel@tonic-gate 			n_invalid++;
777c478bd9Sstevel@tonic-gate 			break;
787c478bd9Sstevel@tonic-gate 		case UNIQUE:
797c478bd9Sstevel@tonic-gate 			errmsg( M_GRP_NOTUSED, ptr );
807c478bd9Sstevel@tonic-gate 			n_invalid++;
817c478bd9Sstevel@tonic-gate 			break;
827c478bd9Sstevel@tonic-gate 		case NOTUNIQUE:
837c478bd9Sstevel@tonic-gate 			/* ignore duplicated primary */
847c478bd9Sstevel@tonic-gate 			if (g_ptr->gr_gid == gid) {
857c478bd9Sstevel@tonic-gate 				if (!dup_prim)
867c478bd9Sstevel@tonic-gate 					dup_prim++;
877c478bd9Sstevel@tonic-gate 				continue;
887c478bd9Sstevel@tonic-gate 			}
897c478bd9Sstevel@tonic-gate 
907c478bd9Sstevel@tonic-gate 			if( !i )
917c478bd9Sstevel@tonic-gate 				grplist[ i++ ] = g_ptr->gr_gid;
927c478bd9Sstevel@tonic-gate 			else {
937c478bd9Sstevel@tonic-gate 				/* Keep out duplicates */
947c478bd9Sstevel@tonic-gate 				for( j = 0; j < i; j++ )
957c478bd9Sstevel@tonic-gate 					if( g_ptr->gr_gid == grplist[j] )
967c478bd9Sstevel@tonic-gate 						break;
977c478bd9Sstevel@tonic-gate 
987c478bd9Sstevel@tonic-gate 				if( j == i )
997c478bd9Sstevel@tonic-gate 					/* Not a duplicate */
1007c478bd9Sstevel@tonic-gate 					grplist[i++] = g_ptr->gr_gid;
1017c478bd9Sstevel@tonic-gate 			}
1027c478bd9Sstevel@tonic-gate 			break;
1037c478bd9Sstevel@tonic-gate 
1047c478bd9Sstevel@tonic-gate 		}
1057c478bd9Sstevel@tonic-gate 		if (warning)
1067c478bd9Sstevel@tonic-gate 			warningmsg(warning, ptr);
1077c478bd9Sstevel@tonic-gate 
1087c478bd9Sstevel@tonic-gate 		if( i >= ngroups_max ) {
1097c478bd9Sstevel@tonic-gate 			errmsg( M_MAXGROUPS, ngroups_max );
1107c478bd9Sstevel@tonic-gate 			break;
1117c478bd9Sstevel@tonic-gate 		}
1127c478bd9Sstevel@tonic-gate 	}
1137c478bd9Sstevel@tonic-gate 
1147c478bd9Sstevel@tonic-gate 	/* Terminate the list */
1157c478bd9Sstevel@tonic-gate 	grplist[ i ] = -1;
1167c478bd9Sstevel@tonic-gate 
1177c478bd9Sstevel@tonic-gate 	if( n_invalid )
1187c478bd9Sstevel@tonic-gate 		exit( EX_BADARG );
1197c478bd9Sstevel@tonic-gate 
1207c478bd9Sstevel@tonic-gate 	return( (int **)grplist );
1217c478bd9Sstevel@tonic-gate }
122