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

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/* compare.c - ldbm backend compare routine */
/* $OpenLDAP$ */
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/*
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* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/socket.h>
#include <ac/string.h>
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#include "slap.h"
#include "back-ldbm.h"
#include "proto-back-ldbm.h"
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int
ldbm_back_compare(
Backend *be,
Connection *conn,
Operation *op,
char *dn,
char *ndn,
#ifdef SLAPD_SCHEMA_NOT_COMPAT
AttributeAssertion *ava
#else
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Ava *ava
#endif
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)
{
struct ldbminfo *li = (struct ldbminfo *) be->be_private;
Entry *matched;
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Entry *e;
Attribute *a;
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int rc;
int manageDSAit = get_manageDSAit( op );
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/* get entry with reader lock */
if ( (e = dn2entry_r( be, ndn, &matched )) == NULL ) {
char *matched_dn = NULL;
struct berval **refs = NULL;
if ( matched != NULL ) {
matched_dn = ch_strdup( matched->e_dn );
refs = is_entry_referral( matched )
? get_entry_referrals( be, conn, op, matched )
: NULL;
cache_return_entry_r( &li->li_cache, matched );
} else {
refs = default_referral;
}
send_ldap_result( conn, op, LDAP_REFERRAL,
matched_dn, NULL, refs, NULL );
if( matched != NULL ) {
ber_bvecfree( refs );
free( matched_dn );
}
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return( 1 );
}
if (!manageDSAit && is_entry_referral( e ) ) {
/* entry is a referral, don't allow add */
struct berval **refs = get_entry_referrals( be,
conn, op, e );
Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
0, 0 );
send_ldap_result( conn, op, LDAP_REFERRAL,
e->e_dn, NULL, refs, NULL );
ber_bvecfree( refs );
rc = 1;
goto return_results;
}
#ifdef SLAPD_SCHEMA_NOT_COMPAT
if ( ! access_allowed( be, conn, op, e,
ava->aa_desc, ava->aa_value, ACL_COMPARE ) )
#else
if ( ! access_allowed( be, conn, op, e,
ava->ava_type, &ava->ava_value, ACL_COMPARE ) )
#endif
{
send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
NULL, NULL, NULL, NULL );
rc = 1;
goto return_results;
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}
rc = LDAP_NO_SUCH_ATTRIBUTE;
#ifdef SLAPD_SCHEMA_NOT_COMPAT
for(a = attrs_find( e->e_attrs, ava->aa_desc );
a != NULL;
a = attrs_find( a, ava->aa_desc ))
#else
if ((a = attr_find( e->e_attrs, ava->ava_type )) != NULL )
#endif
{
rc = LDAP_COMPARE_FALSE;
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#ifdef SLAPD_SCHEMA_NOT_COMPAT
/* not yet implemented */
#else
if ( value_find( a->a_vals, &ava->ava_value, a->a_syntax, 1 ) == 0 )
#endif
{
rc = LDAP_COMPARE_TRUE;
#ifdef SLAPD_SCHEMA_NOT_COMPAT
break;
#endif
}
}
send_ldap_result( conn, op, rc,
NULL, NULL, NULL, NULL );
if( rc != LDAP_NO_SUCH_ATTRIBUTE ) {
rc = 0;
}
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return_results:;
cache_return_entry_r( &li->li_cache, e );
return( rc );
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}