fix compile issues related to the external namespace

src/server/ua_server.c

@@ -101,10 +101,10 @@ UA_Server_addExternalNamespace(UA_Server *server, const UA_String *url,
         return UA_STATUSCODE_BADARGUMENTSMISSING;
 
     char urlString[256];
-    if(url.length >= 256)
+    if(url->length >= 256)
         return UA_STATUSCODE_BADINTERNALERROR;
-    memcpy(urlString, url.data, url.length);
-    urlString[url.length] = 0;
+    memcpy(urlString, url->data, url->length);
+    urlString[url->length] = 0;
 
     size_t size = server->externalNamespacesSize;
     server->externalNamespaces =
@@ -114,7 +114,6 @@ UA_Server_addExternalNamespace(UA_Server *server, const UA_String *url,
     *assignedNamespaceIndex = (UA_UInt16)server->namespacesSize;
     UA_String_copy(url, &server->externalNamespaces[size].url);
     ++server->externalNamespacesSize;
-    addNamespaceInternal(server, urlString);
 
     return UA_STATUSCODE_GOOD;
 }

src/server/ua_services_nodemanagement.c

@@ -1015,7 +1015,7 @@ Service_AddReferences_single(UA_Server *server, UA_Session *session,
             continue;
         } else {
             UA_ExternalNodeStore *ens = &server->externalNamespaces[j].externalNodeStore;
-            retval = ens->addOneWayReference(ens->ensHandle, item);
+            retval = (UA_StatusCode)ens->addOneWayReference(ens->ensHandle, item);
             handledExternally = UA_TRUE;
             break;
         }
@@ -1041,12 +1041,12 @@ Service_AddReferences_single(UA_Server *server, UA_Session *session,
                                 (UA_EditNodeCallback)addOneWayReference, &secondItem);
 #else
     handledExternally = UA_FALSE;
-    for(size_t j = 0; j <server->externalNamespacesSize; ++j) {
+    for(size_t j = 0; j < server->externalNamespacesSize; ++j) {
         if(secondItem.sourceNodeId.namespaceIndex != server->externalNamespaces[j].index) {
             continue;
         } else {
             UA_ExternalNodeStore *ens = &server->externalNamespaces[j].externalNodeStore;
-            retval = ens->addOneWayReference(ens->ensHandle, &secondItem);
+            retval = (UA_StatusCode)ens->addOneWayReference(ens->ensHandle, &secondItem);
             handledExternally = UA_TRUE;
             break;
         }