xref: /netbsd-src/external/bsd/openldap/dist/libraries/libldap/passwd.c (revision b1c86f5f087524e68db12794ee9c3e3da1ab17a0)
1 /*	$NetBSD: passwd.c,v 1.1.1.2 2010/03/08 02:14:20 lukem Exp $	*/
2 
3 /* OpenLDAP: pkg/ldap/libraries/libldap/passwd.c,v 1.18.2.4 2009/01/22 00:00:55 kurt Exp */
4 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5  *
6  * Copyright 1998-2009 The OpenLDAP Foundation.
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted only as authorized by the OpenLDAP
11  * Public License.
12  *
13  * A copy of this license is available in the file LICENSE in the
14  * top-level directory of the distribution or, alternatively, at
15  * <http://www.OpenLDAP.org/license.html>.
16  */
17 /* ACKNOWLEDGEMENTS:
18  * This program was orignally developed by Kurt D. Zeilenga for inclusion in
19  * OpenLDAP Software.
20  */
21 
22 #include "portable.h"
23 
24 #include <stdio.h>
25 #include <ac/stdlib.h>
26 #include <ac/string.h>
27 #include <ac/time.h>
28 
29 #include "ldap-int.h"
30 
31 /*
32  * LDAP Password Modify (Extended) Operation (RFC 3062)
33  */
34 
35 int ldap_parse_passwd(
36 	LDAP *ld,
37 	LDAPMessage *res,
38 	struct berval *newpasswd )
39 {
40 	int rc;
41 	struct berval *retdata = NULL;
42 
43 	assert( ld != NULL );
44 	assert( LDAP_VALID( ld ) );
45 	assert( res != NULL );
46 	assert( newpasswd != NULL );
47 
48 	newpasswd->bv_val = NULL;
49 	newpasswd->bv_len = 0;
50 
51 	rc = ldap_parse_extended_result( ld, res, NULL, &retdata, 0 );
52 	if ( rc != LDAP_SUCCESS ) {
53 		return rc;
54 	}
55 
56 	if ( retdata != NULL ) {
57 		ber_tag_t tag;
58 		BerElement *ber = ber_init( retdata );
59 
60 		if ( ber == NULL ) {
61 			rc = ld->ld_errno = LDAP_NO_MEMORY;
62 			goto done;
63 		}
64 
65 		/* we should check the tag */
66 		tag = ber_scanf( ber, "{o}", newpasswd );
67 		ber_free( ber, 1 );
68 
69 		if ( tag == LBER_ERROR ) {
70 			rc = ld->ld_errno = LDAP_DECODING_ERROR;
71 		}
72 	}
73 
74 done:;
75 	ber_bvfree( retdata );
76 
77 	return rc;
78 }
79 
80 int
81 ldap_passwd( LDAP *ld,
82 	struct berval	*user,
83 	struct berval	*oldpw,
84 	struct berval	*newpw,
85 	LDAPControl		**sctrls,
86 	LDAPControl		**cctrls,
87 	int				*msgidp )
88 {
89 	int rc;
90 	struct berval bv = BER_BVNULL;
91 	BerElement *ber = NULL;
92 
93 	assert( ld != NULL );
94 	assert( LDAP_VALID( ld ) );
95 	assert( msgidp != NULL );
96 
97 	if( user != NULL || oldpw != NULL || newpw != NULL ) {
98 		/* build change password control */
99 		ber = ber_alloc_t( LBER_USE_DER );
100 
101 		if( ber == NULL ) {
102 			ld->ld_errno = LDAP_NO_MEMORY;
103 			return ld->ld_errno;
104 		}
105 
106 		ber_printf( ber, "{" /*}*/ );
107 
108 		if( user != NULL ) {
109 			ber_printf( ber, "tO",
110 				LDAP_TAG_EXOP_MODIFY_PASSWD_ID, user );
111 		}
112 
113 		if( oldpw != NULL ) {
114 			ber_printf( ber, "tO",
115 				LDAP_TAG_EXOP_MODIFY_PASSWD_OLD, oldpw );
116 		}
117 
118 		if( newpw != NULL ) {
119 			ber_printf( ber, "tO",
120 				LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, newpw );
121 		}
122 
123 		ber_printf( ber, /*{*/ "N}" );
124 
125 		rc = ber_flatten2( ber, &bv, 0 );
126 
127 		if( rc < 0 ) {
128 			ld->ld_errno = LDAP_ENCODING_ERROR;
129 			return ld->ld_errno;
130 		}
131 
132 	}
133 
134 	rc = ldap_extended_operation( ld, LDAP_EXOP_MODIFY_PASSWD,
135 		bv.bv_val ? &bv : NULL, sctrls, cctrls, msgidp );
136 
137 	ber_free( ber, 1 );
138 
139 	return rc;
140 }
141 
142 int
143 ldap_passwd_s(
144 	LDAP *ld,
145 	struct berval	*user,
146 	struct berval	*oldpw,
147 	struct berval	*newpw,
148 	struct berval *newpasswd,
149 	LDAPControl **sctrls,
150 	LDAPControl **cctrls )
151 {
152 	int		rc;
153 	int		msgid;
154 	LDAPMessage	*res;
155 
156 	rc = ldap_passwd( ld, user, oldpw, newpw, sctrls, cctrls, &msgid );
157 	if ( rc != LDAP_SUCCESS ) {
158 		return rc;
159 	}
160 
161 	if ( ldap_result( ld, msgid, LDAP_MSG_ALL, (struct timeval *) NULL, &res ) == -1 || !res ) {
162 		return ld->ld_errno;
163 	}
164 
165 	rc = ldap_parse_passwd( ld, res, newpasswd );
166 	if( rc != LDAP_SUCCESS ) {
167 		ldap_msgfree( res );
168 		return rc;
169 	}
170 
171 	return( ldap_result2error( ld, res, 1 ) );
172 }
173