Add an HMAC implementation using NSS. Include centralized NSS initialization, based on code from phajdan.jr.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@2260 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 35 insertions, 0 deletions

diff --git a/base/nss_init.cc b/base/nss_init.cc
new file mode 100644
index 0000000..6427e94
--- /dev/null
+++ b/base/nss_init.cc
@@ -0,0 +1,35 @@
+// Copyright (c) 2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/nss_init.h"
+
+#include "base/logging.h"
+#include "base/singleton.h"
+
+// Include this header last, since NSS will define "Lock" in an enum.
+//   https://bugzilla.mozilla.org/show_bug.cgi?id=455424
+#include <nss.h>
+
+namespace base {
+
+namespace {
+
+class NSSInitSingleton {
+ public:
+  NSSInitSingleton() {
+    CHECK(NSS_NoDB_Init(".") == SECSuccess);
+  }
+
+  ~NSSInitSingleton() {
+    NSS_Shutdown();
+  }
+};
+
+}  // namespace
+
+void EnsureNSSInit() {
+  Singleton<NSSInitSingleton>::get();
+}
+
+}  // namespace base