From 908f99e3b2a8a4513f5d24988a4383af8b6062ee Mon Sep 17 00:00:00 2001
From: Alexander Scheel <ascheel@redhat.com>
Date: Fri, 30 Aug 2019 09:34:57 +1000
Subject: Bug 1570501 - Add AES-CMAC implementation to freebl, r=mt

Differential Revision: https://phabricator.services.mozilla.com/D40120
---
 cpputil/freebl_scoped_ptrs.h | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 cpputil/freebl_scoped_ptrs.h

(limited to 'cpputil')

diff --git a/cpputil/freebl_scoped_ptrs.h b/cpputil/freebl_scoped_ptrs.h
new file mode 100644
index 000000000..2f21ca903
--- /dev/null
+++ b/cpputil/freebl_scoped_ptrs.h
@@ -0,0 +1,33 @@
+/* -*- 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 freebl_scoped_ptrs_h__
+#define freebl_scoped_ptrs_h__
+
+#include <memory>
+#include "blapi.h"
+
+struct ScopedDelete {
+  void operator()(CMACContext* ctx) { CMAC_Destroy(ctx, PR_TRUE); }
+};
+
+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(CMACContext);
+
+#undef SCOPED
+
+#endif  // freebl_scoped_ptrs_h__
-- 
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