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

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/* compare.c - monitor backend compare routine */
/*
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* Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
/*
* Copyright 2001, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
*
* This work has beed deveolped for the OpenLDAP Foundation
* in the hope that it may be useful to the Open Source community,
* but WITHOUT ANY WARRANTY.
*
* 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 and SysNet s.n.c. are 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.
* SysNet s.n.c. cannot be responsible for the consequences of the
* alterations.
*
* 4. This notice may not be removed or altered.
*/
#include "portable.h"
#include <stdio.h>
#include <slap.h>
#include "back-monitor.h"
int
monitor_back_compare(
Backend *be,
Connection *conn,
Operation *op,
struct berval *dn,
struct berval *ndn,
AttributeAssertion *ava
)
{
struct monitorinfo *mi = (struct monitorinfo *) be->be_private; int rc;
Entry *e, *matched = NULL;
Attribute *a;
/* get entry with reader lock */
monitor_cache_dn2entry( mi, ndn, &e, &matched );
if ( e == NULL ) {
send_ldap_result( conn, op, LDAP_NO_SUCH_OBJECT,
matched ? matched->e_dn : NULL,
NULL, NULL, NULL );
if ( matched ) {
monitor_cache_release( mi, matched );
}
return( 0 );
}
rc = access_allowed( be, conn, op, e, ava->aa_desc,
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&ava->aa_value, ACL_COMPARE, NULL );
if ( !rc ) {
send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
NULL, NULL, NULL, NULL );
rc = 1;
goto return_results;
}
rc = LDAP_NO_SUCH_ATTRIBUTE;
for ( a = attrs_find( e->e_attrs, ava->aa_desc );
a != NULL;
a = attrs_find( a->a_next, ava->aa_desc )) {
rc = LDAP_COMPARE_FALSE;
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#ifdef SLAP_NVALUES
if ( value_find_ex( ava->aa_desc,
SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
a->a_nvals ? a->a_nvals : a->a_vals,
&ava->aa_value ) == 0 )
#else
if ( value_find( ava->aa_desc, a->a_vals, &ava->aa_value ) == 0 )
#endif
{
rc = LDAP_COMPARE_TRUE;
break;
}
}
send_ldap_result( conn, op, rc, NULL, NULL, NULL, NULL );
if( rc != LDAP_NO_SUCH_ATTRIBUTE ) {
rc = 0;
}
return_results:;
monitor_cache_release( mi, e );
return( rc );
}