msi: Return INSTALLSTATE_BADCONFIG if we can't decode the first component.

dlls/msi/msi.c

@@ -1272,13 +1272,17 @@ INSTALLSTATE WINAPI MsiQueryFeatureStateW(LPCWSTR szProduct, LPCWSTR szFeature)
     if (!components)
         return INSTALLSTATE_ADVERTISED;
 
-    for( p = components; *p != 2 ; p += 20)
+    for( p = components; *p && *p != 2 ; p += 20)
     {
         if (!decode_base85_guid( p, &guid ))
         {
-            ERR("%s\n", debugstr_w(p));
-            break;
+            if (p != components)
+                break;
+
+            msi_free(components);
+            return INSTALLSTATE_BADCONFIG;
         }
+
         StringFromGUID2(&guid, comp, GUID_SIZE);
         r = MsiGetComponentPathW(szProduct, comp, NULL, 0);
         TRACE("component %s state %d\n", debugstr_guid(&guid), r);

dlls/msi/tests/msi.c

@@ -591,10 +591,7 @@ static void test_MsiQueryFeatureState(void)
     ok(res == ERROR_SUCCESS, "Expected ERROR_SUCCESS, got %d\n", res);
 
     state = MsiQueryFeatureStateA(prodcode, "feature");
-    todo_wine
-    {
-        ok(state == INSTALLSTATE_BADCONFIG, "Expected INSTALLSTATE_BADCONFIG, got %d\n", state);
-    }
+    ok(state == INSTALLSTATE_BADCONFIG, "Expected INSTALLSTATE_BADCONFIG, got %d\n", state);
 
     res = RegSetValueExA(localkey, "feature", 0, REG_SZ, (const BYTE *)"aaaaaaaaaaaaaaaaaaaa", 21);
     ok(res == ERROR_SUCCESS, "Expected ERROR_SUCCESS, got %d\n", res);