wbemprox: WQL string comparisons are case insensitive.

dlls/wbemprox/query.c

@@ -118,22 +118,22 @@ static HRESULT eval_strcmp( UINT op, const WCHAR *lstr, const WCHAR *rstr, LONGL
     switch (op)
     {
     case OP_EQ:
-        *val = !wcscmp( lstr, rstr );
+        *val = !wcsicmp( lstr, rstr );
         break;
     case OP_GT:
-        *val = wcscmp( lstr, rstr ) > 0;
+        *val = wcsicmp( lstr, rstr ) > 0;
         break;
     case OP_LT:
-        *val = wcscmp( lstr, rstr ) < 0;
+        *val = wcsicmp( lstr, rstr ) < 0;
         break;
     case OP_LE:
-        *val = wcscmp( lstr, rstr ) <= 0;
+        *val = wcsicmp( lstr, rstr ) <= 0;
         break;
     case OP_GE:
-        *val = wcscmp( lstr, rstr ) >= 0;
+        *val = wcsicmp( lstr, rstr ) >= 0;
         break;
     case OP_NE:
-        *val = wcscmp( lstr, rstr );
+        *val = wcsicmp( lstr, rstr );
         break;
     case OP_LIKE:
         *val = eval_like( lstr, rstr );

dlls/wbemprox/tests/query.c

@@ -2143,6 +2143,28 @@ static void test_Win32_LogicalDisk( IWbemServices *services )
 
     IEnumWbemClassObject_Release( result );
     SysFreeString( query );
+
+    query = SysAllocString( L"SELECT * FROM Win32_LogicalDisk WHERE DeviceID > 'b:' AND DeviceID < 'd:'" );
+    hr = IWbemServices_ExecQuery( services, wql, query, 0, NULL, &result );
+    ok( hr == S_OK, "got %#lx\n", hr );
+    count = 0;
+    hr = IEnumWbemClassObject_Next( result, 10000, 1, &obj, &count );
+    ok( hr == S_OK, "got %#lx\n", hr );
+    ok( count == 1, "got %lu\n", count );
+    IWbemClassObject_Release( obj );
+    SysFreeString( query );
+
+    query = SysAllocString( L"SELECT * FROM Win32_LogicalDisk WHERE DeviceID = 'C:'" );
+    hr = IWbemServices_ExecQuery( services, wql, query, 0, NULL, &result );
+    ok( hr == S_OK, "got %#lx\n", hr );
+    count = 0;
+    hr = IEnumWbemClassObject_Next( result, 10000, 1, &obj, &count );
+    ok( hr == S_OK, "got %#lx\n", hr );
+    ok( count == 1, "got %lu\n", count );
+    IWbemClassObject_Release( obj );
+    SysFreeString( query );
+    IEnumWbemClassObject_Release( result );
+    SysFreeString( query );
     SysFreeString( wql );
 }