grpauth.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1992 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI" /* c2 secure */
#include <stdio.h>
#include <signal.h>
#include <grp.h>
#include <sys/time.h>
#include <errno.h>
/*
* Version to go in the BCP compatibility library in SVr4 version of
* SunOS. This does not bother talking to rpc.pwdauthd or looking for the
* password.adjunct file on the system since they do not exist anymore.
* They have been effectively replaced by a more robust aging security provided
* by the combination of /etc/shadow file, shadow support in the NIS+
* passwd table and the use of secure RPC in NIS+.
*/
grpauth(name, password)
char *name;
char *password;
{
/*
* this routine authenticates a password for the named user.
* Assumes the adjunct file does not exist.
* and therefore checks the group "source" using the standard
* getgrnam(3C) routine that uses /etc/nsswitch.conf(4).
*/
struct group gr;
struct group *grp;
if ((grp = getgrnam(name)) == NULL)
/* group is not in main password system */
return (-1);
gr = *grp;
if (gr.gr_passwd[0] == '#' && gr.gr_passwd[1] == '$') {
/* this means that /etc/group has problems */
fprintf(stderr, "grpauth: bad group entry for %s\n",
gr.gr_name);
return (-1);
}
if (strcmp(crypt(password, gr.gr_passwd), gr.gr_passwd) == 0)
return (0);
else
return (-1);
}