1 files changed, 78 insertions, 0 deletions
diff --git a/security/pkix/lib/pkixtime.cpp b/security/pkix/lib/pkixtime.cpp
new file mode 100644
index 000000000..ace23dd41
--- /dev/null
+++ b/security/pkix/lib/pkixtime.cpp
@@ -0,0 +1,78 @@
+/* -*- 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 code is made available to you under your choice of the following sets
+ * of licensing terms:
+ */
+/* 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/.
+ */
+/* Copyright 2014 Mozilla Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "pkix/Time.h"
+#include "pkixutil.h"
+
+#ifdef WIN32
+#ifdef _MSC_VER
+#pragma warning(push, 3)
+#endif
+#include "windows.h"
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+#else
+#include "sys/time.h"
+#endif
+
+namespace mozilla { namespace pkix {
+
+Time
+Now()
+{
+  uint64_t seconds;
+
+#ifdef WIN32
+  // "Contains a 64-bit value representing the number of 100-nanosecond
+  // intervals since January 1, 1601 (UTC)."
+  //   - http://msdn.microsoft.com/en-us/library/windows/desktop/ms724284(v=vs.85).aspx
+  FILETIME ft;
+  GetSystemTimeAsFileTime(&ft);
+  uint64_t ft64 = (static_cast<uint64_t>(ft.dwHighDateTime) << 32) |
+                  ft.dwLowDateTime;
+  seconds = (DaysBeforeYear(1601) * Time::ONE_DAY_IN_SECONDS) +
+            ft64 / (1000u * 1000u * 1000u / 100u);
+#else
+  // "The gettimeofday() function shall obtain the current time, expressed as
+  // seconds and microseconds since the Epoch."
+  //   - http://pubs.opengroup.org/onlinepubs/009695399/functions/gettimeofday.html
+  timeval tv;
+  (void) gettimeofday(&tv, nullptr);
+  seconds = (DaysBeforeYear(1970) * Time::ONE_DAY_IN_SECONDS) +
+            static_cast<uint64_t>(tv.tv_sec);
+#endif
+
+  return TimeFromElapsedSecondsAD(seconds);
+}
+
+Time
+TimeFromEpochInSeconds(uint64_t secondsSinceEpoch)
+{
+  uint64_t seconds = (DaysBeforeYear(1970) * Time::ONE_DAY_IN_SECONDS) +
+                     secondsSinceEpoch;
+  return TimeFromElapsedSecondsAD(seconds);
+}
+
+} } // namespace mozilla::pkix