openldap/servers/slapd/back-bdb/compare.c
2002-03-26 17:47:52 +00:00

130 lines
2.5 KiB
C

/* compare.c - bdb backend compare routine */
/* $OpenLDAP$ */
/*
* Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include "back-bdb.h"
#include "external.h"
int
bdb_compare(
BackendDB *be,
Connection *conn,
Operation *op,
struct berval *dn,
struct berval *ndn,
AttributeAssertion *ava
)
{
struct bdb_info *bdb = (struct bdb_info *) be->be_private;
Entry *matched;
Entry *e;
Attribute *a;
int rc;
const char *text = NULL;
int manageDSAit = get_manageDSAit( op );
/* get entry */
rc = bdb_dn2entry_r( be, NULL, ndn, &e, &matched, 0 );
switch( rc ) {
case DB_NOTFOUND:
case 0:
break;
default:
rc = LDAP_OTHER;
text = "internal error";
goto return_results;
}
if ( e == NULL ) {
char *matched_dn = NULL;
BerVarray refs;
if ( matched != NULL ) {
matched_dn = ch_strdup( matched->e_dn );
refs = is_entry_referral( matched )
? get_entry_referrals( be, conn, op, matched )
: NULL;
bdb_cache_return_entry_r( &bdb->bi_cache, matched );
matched = NULL;
} else {
refs = referral_rewrite( default_referral,
NULL, dn, LDAP_SCOPE_DEFAULT );
}
send_ldap_result( conn, op, rc = LDAP_REFERRAL,
matched_dn, NULL, refs, NULL );
ber_bvarray_free( refs );
free( matched_dn );
goto done;
}
if (!manageDSAit && is_entry_referral( e ) ) {
/* entry is a referral, don't allow add */
BerVarray refs = get_entry_referrals( be,
conn, op, e );
#ifdef NEW_LOGGING
LDAP_LOG (( "compare", LDAP_LEVEL_DETAIL1,"bdb_compare: entry is referral\n" ));
#else
Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
0, 0 );
#endif
send_ldap_result( conn, op, rc = LDAP_REFERRAL,
e->e_dn, NULL, refs, NULL );
ber_bvarray_free( refs );
goto done;
}
if ( ! access_allowed( be, conn, op, e,
ava->aa_desc, &ava->aa_value, ACL_COMPARE, NULL ) )
{
rc = LDAP_INSUFFICIENT_ACCESS;
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;
if ( value_find( ava->aa_desc, a->a_vals, &ava->aa_value ) == 0 ) {
rc = LDAP_COMPARE_TRUE;
break;
}
}
return_results:
send_ldap_result( conn, op, rc,
NULL, text, NULL, NULL );
if( rc == LDAP_COMPARE_FALSE || rc == LDAP_COMPARE_TRUE ) {
rc = LDAP_SUCCESS;
}
done:
/* free entry */
if( e != NULL ) {
bdb_cache_return_entry_r( &bdb->bi_cache, e );
}
return rc;
}