michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set ts=8 sts=2 et sw=2 tw=80: */
michael@0: /* This code is made available to you under your choice of the following sets
michael@0:  * of licensing terms:
michael@0:  */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0:  */
michael@0: /* Copyright 2014 Mozilla Contributors
michael@0:  *
michael@0:  * Licensed under the Apache License, Version 2.0 (the "License");
michael@0:  * you may not use this file except in compliance with the License.
michael@0:  * You may obtain a copy of the License at
michael@0:  *
michael@0:  *     http://www.apache.org/licenses/LICENSE-2.0
michael@0:  *
michael@0:  * Unless required by applicable law or agreed to in writing, software
michael@0:  * distributed under the License is distributed on an "AS IS" BASIS,
michael@0:  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
michael@0:  * See the License for the specific language governing permissions and
michael@0:  * limitations under the License.
michael@0:  */
michael@0: 
michael@0: #include "pkix/Time.h"
michael@0: #include "pkixutil.h"
michael@0: #ifdef WIN32
michael@0: #include "windows.h"
michael@0: #else
michael@0: #include "sys/time.h"
michael@0: #endif
michael@0: 
michael@0: namespace mozilla { namespace pkix {
michael@0: 
michael@0: Time
michael@0: Now()
michael@0: {
michael@0:   uint64_t seconds;
michael@0: 
michael@0: #ifdef WIN32
michael@0:   // "Contains a 64-bit value representing the number of 100-nanosecond
michael@0:   // intervals since January 1, 1601 (UTC)."
michael@0:   //   - http://msdn.microsoft.com/en-us/library/windows/desktop/ms724284(v=vs.85).aspx
michael@0:   FILETIME ft;
michael@0:   GetSystemTimeAsFileTime(&ft);
michael@0:   uint64_t ft64 = (static_cast<uint64_t>(ft.dwHighDateTime) << 32) |
michael@0:                   ft.dwLowDateTime;
michael@0:   seconds = (DaysBeforeYear(1601) * Time::ONE_DAY_IN_SECONDS) +
michael@0:             ft64 / (1000u * 1000u * 1000u / 100u);
michael@0: #else
michael@0:   // "The gettimeofday() function shall obtain the current time, expressed as
michael@0:   // seconds and microseconds since the Epoch."
michael@0:   //   - http://pubs.opengroup.org/onlinepubs/009695399/functions/gettimeofday.html
michael@0:   timeval tv;
michael@0:   (void) gettimeofday(&tv, nullptr);
michael@0:   seconds = (DaysBeforeYear(1970) * Time::ONE_DAY_IN_SECONDS) + tv.tv_sec;
michael@0: #endif
michael@0: 
michael@0:   return TimeFromElapsedSecondsAD(seconds);
michael@0: }
michael@0: 
michael@0: Time
michael@0: TimeFromEpochInSeconds(uint64_t secondsSinceEpoch)
michael@0: {
michael@0:   uint64_t seconds = (DaysBeforeYear(1970) * Time::ONE_DAY_IN_SECONDS) +
michael@0:                      secondsSinceEpoch;
michael@0:   return TimeFromElapsedSecondsAD(seconds);
michael@0: }
michael@0: 
michael@0: } } // namespace mozilla::pkix