xref: /titanic_52/usr/src/lib/libbc/libc/gen/common/grpauth.c (revision 5d54f3d8999eac1762fe0a8c7177d20f1f201fae)
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
57c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate  * with the License.
87c478bd9Sstevel@tonic-gate  *
97c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate  * and limitations under the License.
137c478bd9Sstevel@tonic-gate  *
147c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate  *
207c478bd9Sstevel@tonic-gate  * CDDL HEADER END
217c478bd9Sstevel@tonic-gate  */
227c478bd9Sstevel@tonic-gate /*
237c478bd9Sstevel@tonic-gate  * Copyright 1992 Sun Microsystems, Inc.  All rights reserved.
247c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate  */
267c478bd9Sstevel@tonic-gate 
27*5d54f3d8Smuffin #pragma ident	"%Z%%M%	%I%	%E% SMI"
287c478bd9Sstevel@tonic-gate 
297c478bd9Sstevel@tonic-gate #include <stdio.h>
307c478bd9Sstevel@tonic-gate #include <signal.h>
317c478bd9Sstevel@tonic-gate #include <grp.h>
327c478bd9Sstevel@tonic-gate #include <sys/time.h>
337c478bd9Sstevel@tonic-gate #include <errno.h>
347c478bd9Sstevel@tonic-gate 
357c478bd9Sstevel@tonic-gate /*
367c478bd9Sstevel@tonic-gate  * Version to go in the BCP compatibility library in SVr4 version of
377c478bd9Sstevel@tonic-gate  * SunOS. This does not bother talking to rpc.pwdauthd or looking for the
387c478bd9Sstevel@tonic-gate  * password.adjunct file on the system since they do not exist anymore.
397c478bd9Sstevel@tonic-gate  * They have been effectively replaced by a more robust aging security provided
407c478bd9Sstevel@tonic-gate  * by the combination of /etc/shadow file, shadow support in the NIS+
417c478bd9Sstevel@tonic-gate  * passwd table and the use of secure RPC in NIS+.
427c478bd9Sstevel@tonic-gate  */
437c478bd9Sstevel@tonic-gate 
44*5d54f3d8Smuffin int
45*5d54f3d8Smuffin grpauth(char *name, char *password)
467c478bd9Sstevel@tonic-gate {
477c478bd9Sstevel@tonic-gate 
487c478bd9Sstevel@tonic-gate 	/*
497c478bd9Sstevel@tonic-gate 	 * this routine authenticates a password for the named user.
507c478bd9Sstevel@tonic-gate 	 * Assumes the adjunct file does not exist.
517c478bd9Sstevel@tonic-gate 	 * and therefore checks the group "source" using the standard
527c478bd9Sstevel@tonic-gate 	 * getgrnam(3C) routine that uses /etc/nsswitch.conf(4).
537c478bd9Sstevel@tonic-gate 	 */
547c478bd9Sstevel@tonic-gate 	struct group	gr;
557c478bd9Sstevel@tonic-gate 	struct group	*grp;
567c478bd9Sstevel@tonic-gate 
577c478bd9Sstevel@tonic-gate 	if ((grp = getgrnam(name)) == NULL)
587c478bd9Sstevel@tonic-gate 		/* group is not in main password system */
597c478bd9Sstevel@tonic-gate 		return (-1);
607c478bd9Sstevel@tonic-gate 	gr = *grp;
617c478bd9Sstevel@tonic-gate 	if (gr.gr_passwd[0] == '#' && gr.gr_passwd[1] == '$') {
627c478bd9Sstevel@tonic-gate 		/* this means that /etc/group has problems */
637c478bd9Sstevel@tonic-gate 		fprintf(stderr, "grpauth: bad group entry for %s\n",
647c478bd9Sstevel@tonic-gate 			gr.gr_name);
657c478bd9Sstevel@tonic-gate 		return (-1);
667c478bd9Sstevel@tonic-gate 	}
677c478bd9Sstevel@tonic-gate 	if (strcmp(crypt(password, gr.gr_passwd), gr.gr_passwd) == 0)
687c478bd9Sstevel@tonic-gate 		return (0);
697c478bd9Sstevel@tonic-gate 	else
707c478bd9Sstevel@tonic-gate 		return (-1);
717c478bd9Sstevel@tonic-gate }
72