summaryrefslogtreecommitdiffstats
path: root/libraries/libldap/references.c
diff options
context:
space:
mode:
Diffstat (limited to 'libraries/libldap/references.c')
-rw-r--r--libraries/libldap/references.c147
1 files changed, 147 insertions, 0 deletions
diff --git a/libraries/libldap/references.c b/libraries/libldap/references.c
new file mode 100644
index 0000000..01e9c24
--- /dev/null
+++ b/libraries/libldap/references.c
@@ -0,0 +1,147 @@
+/* references.c */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2021 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/stdlib.h>
+
+#include <ac/socket.h>
+#include <ac/string.h>
+#include <ac/time.h>
+
+#include "ldap-int.h"
+
+LDAPMessage *
+ldap_first_reference( LDAP *ld, LDAPMessage *chain )
+{
+ assert( ld != NULL );
+ assert( LDAP_VALID( ld ) );
+ assert( chain != NULL );
+
+ return chain->lm_msgtype == LDAP_RES_SEARCH_REFERENCE
+ ? chain
+ : ldap_next_reference( ld, chain );
+}
+
+LDAPMessage *
+ldap_next_reference( LDAP *ld, LDAPMessage *ref )
+{
+ assert( ld != NULL );
+ assert( LDAP_VALID( ld ) );
+ assert( ref != NULL );
+
+ for (
+ ref = ref->lm_chain;
+ ref != NULL;
+ ref = ref->lm_chain )
+ {
+ if( ref->lm_msgtype == LDAP_RES_SEARCH_REFERENCE ) {
+ return( ref );
+ }
+ }
+
+ return( NULL );
+}
+
+int
+ldap_count_references( LDAP *ld, LDAPMessage *chain )
+{
+ int i;
+
+ assert( ld != NULL );
+ assert( LDAP_VALID( ld ) );
+
+ for ( i = 0; chain != NULL; chain = chain->lm_chain ) {
+ if( chain->lm_msgtype == LDAP_RES_SEARCH_REFERENCE ) {
+ i++;
+ }
+ }
+
+ return( i );
+}
+
+int
+ldap_parse_reference(
+ LDAP *ld,
+ LDAPMessage *ref,
+ char ***referralsp,
+ LDAPControl ***serverctrls,
+ int freeit)
+{
+ BerElement be;
+ char **refs = NULL;
+ int rc;
+
+ assert( ld != NULL );
+ assert( LDAP_VALID( ld ) );
+ assert( ref != NULL );
+
+ if( ref->lm_msgtype != LDAP_RES_SEARCH_REFERENCE ) {
+ return LDAP_PARAM_ERROR;
+ }
+
+ /* make a private copy of BerElement */
+ AC_MEMCPY(&be, ref->lm_ber, sizeof(be));
+
+ if ( ber_scanf( &be, "{v" /*}*/, &refs ) == LBER_ERROR ) {
+ rc = LDAP_DECODING_ERROR;
+ goto free_and_return;
+ }
+
+ if ( serverctrls == NULL ) {
+ rc = LDAP_SUCCESS;
+ goto free_and_return;
+ }
+
+ if ( ber_scanf( &be, /*{*/ "}" ) == LBER_ERROR ) {
+ rc = LDAP_DECODING_ERROR;
+ goto free_and_return;
+ }
+
+ rc = ldap_pvt_get_controls( &be, serverctrls );
+
+free_and_return:
+
+ if( referralsp != NULL ) {
+ /* provide references regradless of return code */
+ *referralsp = refs;
+
+ } else {
+ LDAP_VFREE( refs );
+ }
+
+ if( freeit ) {
+ ldap_msgfree( ref );
+ }
+
+ if( rc != LDAP_SUCCESS ) {
+ ld->ld_errno = rc;
+
+ if( ld->ld_matched != NULL ) {
+ LDAP_FREE( ld->ld_matched );
+ ld->ld_matched = NULL;
+ }
+
+ if( ld->ld_error != NULL ) {
+ LDAP_FREE( ld->ld_error );
+ ld->ld_error = NULL;
+ }
+ }
+
+ return rc;
+}