xref: /illumos-gate/usr/src/lib/passwdutil/__check_history.c (revision 355b4669e025ff377602b6fc7caaf30dbc218371)
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 /*
23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <nsswitch.h>
30 
31 #include "passwdutil.h"
32 
33 /*
34  *	__check_history - check if a user's new password is in the user's
35  *		old password history.
36  *
37  *	Entry
38  *		user = username.
39  *		passwd = new clear text password.
40  *		rep = repositories to check.
41  *
42  *	Exit
43  *		PWU_SUCCESS, passwd found in user's old password history.
44  *			The caller should only be interested and fail if
45  *			PWU_SUCCESS is returned.
46  *		PWU_NOT_FOUND, passwd not in user's old password history.
47  *		PWU_errors, PWU_ errors from other routines.
48  *
49  */
50 int
51 __check_history(char *user, char *passwd, pwu_repository_t *rep)
52 {
53 	int repositories;
54 	int i;
55 	int res;
56 
57 	repositories = get_ns(rep, PWU_READ);
58 
59 	if (repositories == 0)
60 		return (PWU_SYSTEM_ERROR);
61 
62 	if (repositories == REP_ERANGE)
63 		return (PWU_REPOSITORY_ERROR);
64 
65 	i = REP_FILES;
66 	res = PWU_NOT_FOUND;
67 
68 	/* Loop over repositories until the user is found */
69 	while ((i <= REP_LAST) && (res == PWU_NOT_FOUND)) {
70 		if (repositories & i)
71 			if (rops[i]->checkhistory != NULL)
72 				res = rops[i]->checkhistory(user, passwd, rep);
73 		i <<= 1;
74 	}
75 	return (res);
76 }
77