3 * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
4 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
7 * Copyright (c) 1995 Regents of the University of Michigan.
10 * Redistribution and use in source and binary forms are permitted
11 * provided that this notice is preserved and that due credit is given
12 * to the University of Michigan at Ann Arbor. The name of the University
13 * may not be used to endorse or promote products derived from this
14 * software without specific prior written permission. This software
15 * is provided ``as is'' without express or implied warranty.
22 #include <ac/socket.h>
33 char *dn = NULL, *ndn=NULL;
36 int rc = LDAP_SUCCESS;
38 Debug( LDAP_DEBUG_TRACE, "do_compare\n", 0, 0, 0 );
40 if( op->o_bind_in_progress ) {
41 Debug( LDAP_DEBUG_ANY, "do_compare: SASL bind in progress.\n",
43 send_ldap_result( conn, op, LDAP_SASL_BIND_IN_PROGRESS,
44 NULL, "SASL bind in progress", NULL, NULL );
45 return LDAP_SASL_BIND_IN_PROGRESS;
49 * Parse the compare request. It looks like this:
51 * CompareRequest := [APPLICATION 14] SEQUENCE {
52 * entry DistinguishedName,
55 * value AttributeValue
60 if ( ber_scanf( op->o_ber, "{a" /*}*/, &dn ) == LBER_ERROR ) {
61 Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
62 send_ldap_disconnect( conn, op,
63 LDAP_PROTOCOL_ERROR, "decoding error" );
67 ndn = ch_strdup( dn );
69 if( dn_normalize( ndn ) == NULL ) {
70 Debug( LDAP_DEBUG_ANY, "do_compare: invalid dn (%s)\n", dn, 0, 0 );
71 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
72 "invalid DN", NULL, NULL );
76 if ( get_ava( op->o_ber, &ava ) != LDAP_SUCCESS ) {
77 Debug( LDAP_DEBUG_ANY, "do_compare: get ava failed\n", 0, 0, 0 );
78 send_ldap_disconnect( conn, op,
79 LDAP_PROTOCOL_ERROR, "decoding error" );
83 if ( ber_scanf( op->o_ber, /*{*/ "}" ) == LBER_ERROR ) {
84 Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
85 send_ldap_disconnect( conn, op,
86 LDAP_PROTOCOL_ERROR, "decoding error" );
90 if( ( rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
91 Debug( LDAP_DEBUG_ANY, "do_compare: get_ctrls failed\n", 0, 0, 0 );
95 Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
96 dn, ava.ava_type, ava.ava_value.bv_val );
98 Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d CMP dn=\"%s\" attr=\"%s\"\n",
99 op->o_connid, op->o_opid, dn, ava.ava_type, 0 );
102 * We could be serving multiple database backends. Select the
103 * appropriate one, or send a referral to our "referral server"
104 * if we don't hold it.
106 if ( (be = select_backend( ndn )) == NULL ) {
107 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
108 NULL, NULL, default_referral, NULL );
113 /* make sure this backend recongizes critical controls */
114 rc = backend_check_controls( be, conn, op ) ;
116 if( rc != LDAP_SUCCESS ) {
117 send_ldap_result( conn, op, rc,
118 NULL, NULL, NULL, NULL );
121 /* deref suffix alias if appropriate */
122 ndn = suffix_alias( be, ndn );
124 if ( be->be_compare ) {
125 (*be->be_compare)( be, conn, op, dn, ndn, &ava );
127 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
128 NULL, "Function not implemented", NULL, NULL );