1*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
2*7c478bd9Sstevel@tonic-gate 
3*7c478bd9Sstevel@tonic-gate /*
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the Netscape Public
5*7c478bd9Sstevel@tonic-gate  * License Version 1.1 (the "License"); you may not use this file
6*7c478bd9Sstevel@tonic-gate  * except in compliance with the License. You may obtain a copy of
7*7c478bd9Sstevel@tonic-gate  * the License at http://www.mozilla.org/NPL/
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * Software distributed under the License is distributed on an "AS
10*7c478bd9Sstevel@tonic-gate  * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
11*7c478bd9Sstevel@tonic-gate  * implied. See the License for the specific language governing
12*7c478bd9Sstevel@tonic-gate  * rights and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * The Original Code is Mozilla Communicator client code, released
15*7c478bd9Sstevel@tonic-gate  * March 31, 1998.
16*7c478bd9Sstevel@tonic-gate  *
17*7c478bd9Sstevel@tonic-gate  * The Initial Developer of the Original Code is Netscape
18*7c478bd9Sstevel@tonic-gate  * Communications Corporation. Portions created by Netscape are
19*7c478bd9Sstevel@tonic-gate  * Copyright (C) 1998-1999 Netscape Communications Corporation. All
20*7c478bd9Sstevel@tonic-gate  * Rights Reserved.
21*7c478bd9Sstevel@tonic-gate  *
22*7c478bd9Sstevel@tonic-gate  * Contributor(s):
23*7c478bd9Sstevel@tonic-gate  */
24*7c478bd9Sstevel@tonic-gate /*
25*7c478bd9Sstevel@tonic-gate  *  Copyright (c) 1990 Regents of the University of Michigan.
26*7c478bd9Sstevel@tonic-gate  *  All rights reserved.
27*7c478bd9Sstevel@tonic-gate  */
28*7c478bd9Sstevel@tonic-gate /*
29*7c478bd9Sstevel@tonic-gate  *  compare.c
30*7c478bd9Sstevel@tonic-gate  */
31*7c478bd9Sstevel@tonic-gate 
32*7c478bd9Sstevel@tonic-gate #if 0
33*7c478bd9Sstevel@tonic-gate #ifndef lint
34*7c478bd9Sstevel@tonic-gate static char copyright[] = "@(#) Copyright (c) 1990 Regents of the University of Michigan.\nAll rights reserved.\n";
35*7c478bd9Sstevel@tonic-gate #endif
36*7c478bd9Sstevel@tonic-gate #endif
37*7c478bd9Sstevel@tonic-gate 
38*7c478bd9Sstevel@tonic-gate #include "ldap-int.h"
39*7c478bd9Sstevel@tonic-gate 
40*7c478bd9Sstevel@tonic-gate /*
41*7c478bd9Sstevel@tonic-gate  * ldap_compare - perform an ldap compare operation.  The dn
42*7c478bd9Sstevel@tonic-gate  * of the entry to compare to and the attribute and value to compare (in
43*7c478bd9Sstevel@tonic-gate  * attr and value) are supplied.  The msgid of the response is returned.
44*7c478bd9Sstevel@tonic-gate  *
45*7c478bd9Sstevel@tonic-gate  * Example:
46*7c478bd9Sstevel@tonic-gate  *	ldap_compare( ld, "c=us@cn=bob", "userPassword", "secret" )
47*7c478bd9Sstevel@tonic-gate  */
48*7c478bd9Sstevel@tonic-gate int
49*7c478bd9Sstevel@tonic-gate LDAP_CALL
ldap_compare(LDAP * ld,const char * dn,const char * attr,const char * value)50*7c478bd9Sstevel@tonic-gate ldap_compare( LDAP *ld, const char *dn, const char *attr, const char *value )
51*7c478bd9Sstevel@tonic-gate {
52*7c478bd9Sstevel@tonic-gate 	int		msgid;
53*7c478bd9Sstevel@tonic-gate 	struct berval	bv;
54*7c478bd9Sstevel@tonic-gate 
55*7c478bd9Sstevel@tonic-gate 	LDAPDebug( LDAP_DEBUG_TRACE, "ldap_compare\n", 0, 0, 0 );
56*7c478bd9Sstevel@tonic-gate 
57*7c478bd9Sstevel@tonic-gate 	bv.bv_val = (char *)value;
58*7c478bd9Sstevel@tonic-gate 	bv.bv_len = ( value == NULL ) ? 0 : strlen( value );
59*7c478bd9Sstevel@tonic-gate 
60*7c478bd9Sstevel@tonic-gate 	if ( ldap_compare_ext( ld, dn, attr, &bv, NULL, NULL, &msgid )
61*7c478bd9Sstevel@tonic-gate 	    == LDAP_SUCCESS ) {
62*7c478bd9Sstevel@tonic-gate 		return( msgid );
63*7c478bd9Sstevel@tonic-gate 	} else {
64*7c478bd9Sstevel@tonic-gate 		return( -1 );	/* error is in ld handle */
65*7c478bd9Sstevel@tonic-gate 	}
66*7c478bd9Sstevel@tonic-gate }
67*7c478bd9Sstevel@tonic-gate 
68*7c478bd9Sstevel@tonic-gate int
69*7c478bd9Sstevel@tonic-gate LDAP_CALL
ldap_compare_ext(LDAP * ld,const char * dn,const char * attr,const struct berval * bvalue,LDAPControl ** serverctrls,LDAPControl ** clientctrls,int * msgidp)70*7c478bd9Sstevel@tonic-gate ldap_compare_ext( LDAP *ld, const char *dn, const char *attr,
71*7c478bd9Sstevel@tonic-gate     const struct berval *bvalue, LDAPControl **serverctrls,
72*7c478bd9Sstevel@tonic-gate     LDAPControl **clientctrls, int *msgidp )
73*7c478bd9Sstevel@tonic-gate {
74*7c478bd9Sstevel@tonic-gate 	BerElement	*ber;
75*7c478bd9Sstevel@tonic-gate 	int		rc, lderr;
76*7c478bd9Sstevel@tonic-gate 
77*7c478bd9Sstevel@tonic-gate 	/* The compare request looks like this:
78*7c478bd9Sstevel@tonic-gate 	 *	CompareRequest ::= SEQUENCE {
79*7c478bd9Sstevel@tonic-gate 	 *		entry	DistinguishedName,
80*7c478bd9Sstevel@tonic-gate 	 *		ava	SEQUENCE {
81*7c478bd9Sstevel@tonic-gate 	 *			type	AttributeType,
82*7c478bd9Sstevel@tonic-gate 	 *			value	AttributeValue
83*7c478bd9Sstevel@tonic-gate 	 *		}
84*7c478bd9Sstevel@tonic-gate 	 *	}
85*7c478bd9Sstevel@tonic-gate 	 * and must be wrapped in an LDAPMessage.
86*7c478bd9Sstevel@tonic-gate 	 */
87*7c478bd9Sstevel@tonic-gate 
88*7c478bd9Sstevel@tonic-gate 	LDAPDebug( LDAP_DEBUG_TRACE, "ldap_compare_ext\n", 0, 0, 0 );
89*7c478bd9Sstevel@tonic-gate 
90*7c478bd9Sstevel@tonic-gate 	if ( !NSLDAPI_VALID_LDAP_POINTER( ld )) {
91*7c478bd9Sstevel@tonic-gate 		return( LDAP_PARAM_ERROR );
92*7c478bd9Sstevel@tonic-gate 	}
93*7c478bd9Sstevel@tonic-gate 	if ( attr == NULL || bvalue == NULL || bvalue->bv_len == 0
94*7c478bd9Sstevel@tonic-gate 	    || msgidp == NULL ) {
95*7c478bd9Sstevel@tonic-gate 		lderr = LDAP_PARAM_ERROR;
96*7c478bd9Sstevel@tonic-gate 		LDAP_SET_LDERRNO( ld, lderr, NULL, NULL );
97*7c478bd9Sstevel@tonic-gate 		return( lderr );
98*7c478bd9Sstevel@tonic-gate 	}
99*7c478bd9Sstevel@tonic-gate 
100*7c478bd9Sstevel@tonic-gate 	if ( dn == NULL ) {
101*7c478bd9Sstevel@tonic-gate 		dn = "";
102*7c478bd9Sstevel@tonic-gate 	}
103*7c478bd9Sstevel@tonic-gate 
104*7c478bd9Sstevel@tonic-gate 	LDAP_MUTEX_LOCK( ld, LDAP_MSGID_LOCK );
105*7c478bd9Sstevel@tonic-gate 	*msgidp = ++ld->ld_msgid;
106*7c478bd9Sstevel@tonic-gate 	LDAP_MUTEX_UNLOCK( ld, LDAP_MSGID_LOCK );
107*7c478bd9Sstevel@tonic-gate 
108*7c478bd9Sstevel@tonic-gate 	/* check the cache */
109*7c478bd9Sstevel@tonic-gate 	if ( ld->ld_cache_on && ld->ld_cache_compare != NULL ) {
110*7c478bd9Sstevel@tonic-gate 		LDAP_MUTEX_LOCK( ld, LDAP_CACHE_LOCK );
111*7c478bd9Sstevel@tonic-gate 		if ( (rc = (ld->ld_cache_compare)( ld, *msgidp,
112*7c478bd9Sstevel@tonic-gate 		    LDAP_REQ_COMPARE, dn, attr, bvalue )) != 0 ) {
113*7c478bd9Sstevel@tonic-gate 			*msgidp = rc;
114*7c478bd9Sstevel@tonic-gate 			LDAP_MUTEX_UNLOCK( ld, LDAP_CACHE_LOCK );
115*7c478bd9Sstevel@tonic-gate 			return( LDAP_SUCCESS );
116*7c478bd9Sstevel@tonic-gate 		}
117*7c478bd9Sstevel@tonic-gate 		LDAP_MUTEX_UNLOCK( ld, LDAP_CACHE_LOCK );
118*7c478bd9Sstevel@tonic-gate 	}
119*7c478bd9Sstevel@tonic-gate 
120*7c478bd9Sstevel@tonic-gate 	/* create a message to send */
121*7c478bd9Sstevel@tonic-gate 	if (( lderr = nsldapi_alloc_ber_with_options( ld, &ber ))
122*7c478bd9Sstevel@tonic-gate 	    != LDAP_SUCCESS ) {
123*7c478bd9Sstevel@tonic-gate 		return( lderr );
124*7c478bd9Sstevel@tonic-gate 	}
125*7c478bd9Sstevel@tonic-gate 
126*7c478bd9Sstevel@tonic-gate 	if ( ber_printf( ber, "{it{s{so}}", *msgidp, LDAP_REQ_COMPARE, dn,
127*7c478bd9Sstevel@tonic-gate 	    attr, bvalue->bv_val, (int)bvalue->bv_len /* XXX lossy cast */ )
128*7c478bd9Sstevel@tonic-gate 	    == -1 ) {
129*7c478bd9Sstevel@tonic-gate 		lderr = LDAP_ENCODING_ERROR;
130*7c478bd9Sstevel@tonic-gate 		LDAP_SET_LDERRNO( ld, lderr, NULL, NULL );
131*7c478bd9Sstevel@tonic-gate 		ber_free( ber, 1 );
132*7c478bd9Sstevel@tonic-gate 		return( lderr );
133*7c478bd9Sstevel@tonic-gate 	}
134*7c478bd9Sstevel@tonic-gate 
135*7c478bd9Sstevel@tonic-gate 	if (( lderr = nsldapi_put_controls( ld, serverctrls, 1, ber ))
136*7c478bd9Sstevel@tonic-gate 	    != LDAP_SUCCESS ) {
137*7c478bd9Sstevel@tonic-gate 		ber_free( ber, 1 );
138*7c478bd9Sstevel@tonic-gate 		return( lderr );
139*7c478bd9Sstevel@tonic-gate 	}
140*7c478bd9Sstevel@tonic-gate 
141*7c478bd9Sstevel@tonic-gate 	/* send the message */
142*7c478bd9Sstevel@tonic-gate 	rc = nsldapi_send_initial_request( ld, *msgidp, LDAP_REQ_COMPARE,
143*7c478bd9Sstevel@tonic-gate 		(char *)dn, ber );
144*7c478bd9Sstevel@tonic-gate 	*msgidp = rc;
145*7c478bd9Sstevel@tonic-gate 	return( rc < 0 ? LDAP_GET_LDERRNO( ld, NULL, NULL ) : LDAP_SUCCESS );
146*7c478bd9Sstevel@tonic-gate }
147*7c478bd9Sstevel@tonic-gate 
148*7c478bd9Sstevel@tonic-gate int
149*7c478bd9Sstevel@tonic-gate LDAP_CALL
ldap_compare_s(LDAP * ld,const char * dn,const char * attr,const char * value)150*7c478bd9Sstevel@tonic-gate ldap_compare_s( LDAP *ld, const char *dn, const char *attr,
151*7c478bd9Sstevel@tonic-gate     const char *value )
152*7c478bd9Sstevel@tonic-gate {
153*7c478bd9Sstevel@tonic-gate 	struct berval	bv;
154*7c478bd9Sstevel@tonic-gate 
155*7c478bd9Sstevel@tonic-gate 	bv.bv_val = (char *)value;
156*7c478bd9Sstevel@tonic-gate 	bv.bv_len = ( value == NULL ) ? 0 : strlen( value );
157*7c478bd9Sstevel@tonic-gate 
158*7c478bd9Sstevel@tonic-gate 	return( ldap_compare_ext_s( ld, dn, attr, &bv, NULL, NULL ));
159*7c478bd9Sstevel@tonic-gate }
160*7c478bd9Sstevel@tonic-gate 
161*7c478bd9Sstevel@tonic-gate int
162*7c478bd9Sstevel@tonic-gate LDAP_CALL
ldap_compare_ext_s(LDAP * ld,const char * dn,const char * attr,const struct berval * bvalue,LDAPControl ** serverctrls,LDAPControl ** clientctrls)163*7c478bd9Sstevel@tonic-gate ldap_compare_ext_s( LDAP *ld, const char *dn, const char *attr,
164*7c478bd9Sstevel@tonic-gate     const struct berval *bvalue, LDAPControl **serverctrls,
165*7c478bd9Sstevel@tonic-gate     LDAPControl **clientctrls )
166*7c478bd9Sstevel@tonic-gate {
167*7c478bd9Sstevel@tonic-gate 	int		err, msgid;
168*7c478bd9Sstevel@tonic-gate 	LDAPMessage	*res;
169*7c478bd9Sstevel@tonic-gate 
170*7c478bd9Sstevel@tonic-gate 	if (( err = ldap_compare_ext( ld, dn, attr, bvalue, serverctrls,
171*7c478bd9Sstevel@tonic-gate 	    clientctrls, &msgid )) != LDAP_SUCCESS ) {
172*7c478bd9Sstevel@tonic-gate 		return( err );
173*7c478bd9Sstevel@tonic-gate 	}
174*7c478bd9Sstevel@tonic-gate 
175*7c478bd9Sstevel@tonic-gate 	if ( ldap_result( ld, msgid, 1, (struct timeval *)NULL, &res )
176*7c478bd9Sstevel@tonic-gate 	    == -1 ) {
177*7c478bd9Sstevel@tonic-gate 		return( LDAP_GET_LDERRNO( ld, NULL, NULL ) );
178*7c478bd9Sstevel@tonic-gate 	}
179*7c478bd9Sstevel@tonic-gate 
180*7c478bd9Sstevel@tonic-gate 	return( ldap_result2error( ld, res, 1 ) );
181*7c478bd9Sstevel@tonic-gate }
182