oledb32: Silence interfaces for IDataSourceLocator QI.

dlls/oledb32/dslocator.c

@@ -78,6 +78,21 @@ static HRESULT WINAPI dslocator_QueryInterface(IDataSourceLocator *iface, REFIID
       TRACE("IID_IRunnableObject returning NULL\n");
       return E_NOINTERFACE;
     }
+    else if (IsEqualIID(riid, &IID_IProvideClassInfo))
+    {
+      TRACE("IID_IProvideClassInfo returning NULL\n");
+      return E_NOINTERFACE;
+    }
+    else if (IsEqualIID(riid, &IID_IMarshal))
+    {
+      TRACE("IID_IMarshal returning NULL\n");
+      return E_NOINTERFACE;
+    }
+    else if (IsEqualIID(riid, &IID_IRpcOptions))
+    {
+      TRACE("IID_IRpcOptions returning NULL\n");
+      return E_NOINTERFACE;
+    }
 
     if(*ppvoid)
     {

dlls/oledb32/tests/database.c

@@ -886,6 +886,9 @@ static void test_dslocator(void)
     {
         IDataInitialize *datainit, *datainit2;
         IRunnableObject *runable;
+        IProvideClassInfo *info;
+        IMarshal *marshal;
+        IRpcOptions *opts;
         COMPATIBLE_LONG hwnd = 0;
 
         if (0) /* Crashes under Window 7 */
@@ -928,6 +931,15 @@ static void test_dslocator(void)
         hr = IDataSourceLocator_QueryInterface(dslocator, &IID_IRunnableObject, (void **)&runable);
         ok(hr == E_NOINTERFACE, "got %08x\n", hr);
 
+        hr = IDataSourceLocator_QueryInterface(dslocator, &IID_IMarshal, (void **)&marshal);
+        ok(hr == E_NOINTERFACE, "got %08x\n", hr);
+
+        hr = IDataSourceLocator_QueryInterface(dslocator, &IID_IProvideClassInfo, (void **)&info);
+        ok(hr == E_NOINTERFACE, "got %08x\n", hr);
+
+        hr = IDataSourceLocator_QueryInterface(dslocator, &IID_IRpcOptions, (void **)&opts);
+        ok(hr == E_NOINTERFACE, "got %08x\n", hr);
+
         IDataInitialize_Release(datainit2);
         IDataInitialize_Release(datainit);