1 files changed, 45 insertions, 0 deletions
diff --git a/security/nss/cpputil/scoped_ptrs_util.h b/security/nss/cpputil/scoped_ptrs_util.h
new file mode 100644
index 0000000000..d0a42ee0b4
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+++ b/security/nss/cpputil/scoped_ptrs_util.h
@@ -0,0 +1,45 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=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/. */
+
+#ifndef scoped_ptrs_util_h__
+#define scoped_ptrs_util_h__
+
+#include <memory>
+#include "pkcs11uri.h"
+#include "secoid.h"
+
+struct ScopedDelete {
+  void operator()(SECAlgorithmID* id) { SECOID_DestroyAlgorithmID(id, true); }
+  void operator()(SECItem* item) { SECITEM_FreeItem(item, true); }
+  void operator()(PK11URI* uri) { PK11URI_DestroyURI(uri); }
+  void operator()(PLArenaPool* arena) { PORT_FreeArena(arena, PR_FALSE); }
+};
+
+template <class T>
+struct ScopedMaybeDelete {
+  void operator()(T* ptr) {
+    if (ptr) {
+      ScopedDelete del;
+      del(ptr);
+    }
+  }
+};
+
+#define SCOPED(x) typedef std::unique_ptr<x, ScopedMaybeDelete<x> > Scoped##x
+
+SCOPED(SECAlgorithmID);
+SCOPED(SECItem);
+SCOPED(PK11URI);
+SCOPED(PLArenaPool);
+
+#undef SCOPED
+
+struct StackSECItem : public SECItem {
+  StackSECItem() : SECItem({siBuffer, nullptr, 0}) {}
+  ~StackSECItem() { SECITEM_FreeItem(this, PR_FALSE); }
+};
+
+#endif  // scoped_ptrs_util_h__