openldap/servers/slapd/back-ldap/compare.c

122 lines
3.4 KiB
C

/* compare.c - ldap backend compare function */
/* $OpenLDAP$ */
/*
* Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
/* This is an altered version */
/*
* Copyright 1999, Howard Chu, All rights reserved. <hyc@highlandsun.com>
*
* Permission is granted to anyone to use this software for any purpose
* on any computer system, and to alter it and redistribute it, subject
* to the following restrictions:
*
* 1. The author is not responsible for the consequences of use of this
* software, no matter how awful, even if they arise from flaws in it.
*
* 2. The origin of this software must not be misrepresented, either by
* explicit claim or by omission. Since few users ever read sources,
* credits should appear in the documentation.
*
* 3. Altered versions must be plainly marked as such, and must not be
* misrepresented as being the original software. Since few users
* ever read sources, credits should appear in the documentation.
*
* 4. This notice may not be removed or altered.
*
*
*
* Copyright 2000, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
*
* This software is being modified by Pierangelo Masarati.
* The previously reported conditions apply to the modified code as well.
* Changes in the original code are highlighted where required.
* Credits for the original code go to the author, Howard Chu.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/socket.h>
#include "slap.h"
#include "back-ldap.h"
int
ldap_back_compare(
Operation *op,
SlapReply *rs )
{
struct ldapinfo *li = (struct ldapinfo *) op->o_bd->be_private;
struct ldapconn *lc;
struct berval mapped_at, mapped_val;
struct berval mdn = { 0, NULL };
ber_int_t msgid;
int freeval = 0;
dncookie dc;
lc = ldap_back_getconn(op, rs);
if (!lc || !ldap_back_dobind( lc, op, rs ) ) {
return( -1 );
}
/*
* Rewrite the compare dn, if needed
*/
dc.rwmap = &li->rwmap;
#ifdef ENABLE_REWRITE
dc.conn = op->o_conn;
dc.rs = rs;
dc.ctx = "compareDn";
#else
dc.tofrom = 1;
dc.normalized = 0;
#endif
if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
send_ldap_result( op, rs );
return -1;
}
if ( op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_objectClass ) {
ldap_back_map(&li->rwmap.rwm_oc, &op->orc_ava->aa_value,
&mapped_val, BACKLDAP_MAP);
if (mapped_val.bv_val == NULL || mapped_val.bv_val[0] == '\0') {
return( -1 );
}
mapped_at = op->orc_ava->aa_desc->ad_cname;
} else {
ldap_back_map(&li->rwmap.rwm_at,
&op->orc_ava->aa_desc->ad_cname, &mapped_at,
BACKLDAP_MAP);
if (mapped_at.bv_val == NULL || mapped_at.bv_val[0] == '\0') {
return( -1 );
}
if (op->orc_ava->aa_desc->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName ) {
#ifdef ENABLE_REWRITE
dc.ctx = "compareAttrDN";
#endif
ldap_back_dn_massage( &dc, &op->orc_ava->aa_value, &mapped_val );
if (mapped_val.bv_val == NULL || mapped_val.bv_val[0] == '\0') {
mapped_val = op->orc_ava->aa_value;
} else if (mapped_val.bv_val != op->orc_ava->aa_value.bv_val) {
freeval = 1;
}
}
}
rs->sr_err = ldap_compare_ext( lc->ld, mdn.bv_val, mapped_at.bv_val,
&mapped_val, op->o_ctrls, NULL, &msgid );
if ( mdn.bv_val != op->o_req_dn.bv_val ) {
free( mdn.bv_val );
}
if ( freeval ) {
free( mapped_val.bv_val );
}
return( ldap_back_op_result( lc, op, rs, msgid, 1 ) );
}