xref: /illumos-gate/usr/src/lib/passwdutil/__check_history.c (revision 0fb96ba1f1ce26ff8b286f8f928769a6afcb00a6)
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 #include <nsswitch.h>
28 
29 #include "passwdutil.h"
30 
31 /*
32  *	__check_history - check if a user's new password is in the user's
33  *		old password history.
34  *
35  *	Entry
36  *		user = username.
37  *		passwd = new clear text password.
38  *		rep = repositories to check.
39  *
40  *	Exit
41  *		PWU_SUCCESS, passwd found in user's old password history.
42  *			The caller should only be interested and fail if
43  *			PWU_SUCCESS is returned.
44  *		PWU_NOT_FOUND, passwd not in user's old password history.
45  *		PWU_errors, PWU_ errors from other routines.
46  *
47  */
48 int
49 __check_history(char *user, char *passwd, pwu_repository_t *rep)
50 {
51 	int repositories;
52 	int i;
53 	int res;
54 
55 	repositories = get_ns(rep, PWU_READ);
56 
57 	if (repositories == 0)
58 		return (PWU_SYSTEM_ERROR);
59 
60 	if (repositories == REP_ERANGE)
61 		return (PWU_REPOSITORY_ERROR);
62 
63 	i = REP_FILES;
64 	res = PWU_NOT_FOUND;
65 
66 	/* Loop over repositories until the user is found */
67 	while ((i <= REP_LAST) && (res == PWU_NOT_FOUND)) {
68 		if (repositories & i)
69 			if (rops[i]->checkhistory != NULL)
70 				res = rops[i]->checkhistory(user, passwd, rep);
71 		i <<= 1;
72 	}
73 	return (res);
74 }
75