1 files changed, 22 insertions, 0 deletions
diff --git a/dom/fs/shared/FileSystemHelpers.cpp b/dom/fs/shared/FileSystemHelpers.cpp
new file mode 100644
index 0000000000..24f1fc7fb8
--- /dev/null
+++ b/dom/fs/shared/FileSystemHelpers.cpp
@@ -0,0 +1,22 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "FileSystemHelpers.h"
+
+#include "nsString.h"
+
+namespace mozilla::dom::fs {
+
+bool IsValidName(const mozilla::dom::fs::Name& aName) {
+  return !(aName.IsVoid() || aName.Length() == 0 ||
+#ifdef XP_WIN
+           aName.FindChar('\\') != kNotFound ||
+#endif
+           aName.FindChar('/') != kNotFound || aName.EqualsLiteral(".") ||
+           aName.EqualsLiteral(".."));
+}
+
+}  // namespace mozilla::dom::fs