1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/security/pkix/lib/pkixtime.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,70 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=8 sts=2 et sw=2 tw=80: */
1.6 +/* This code is made available to you under your choice of the following sets
1.7 + * of licensing terms:
1.8 + */
1.9 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.10 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.11 + * file, You can obtain one at http://mozilla.org/MPL/2.0/.
1.12 + */
1.13 +/* Copyright 2014 Mozilla Contributors
1.14 + *
1.15 + * Licensed under the Apache License, Version 2.0 (the "License");
1.16 + * you may not use this file except in compliance with the License.
1.17 + * You may obtain a copy of the License at
1.18 + *
1.19 + * http://www.apache.org/licenses/LICENSE-2.0
1.20 + *
1.21 + * Unless required by applicable law or agreed to in writing, software
1.22 + * distributed under the License is distributed on an "AS IS" BASIS,
1.23 + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
1.24 + * See the License for the specific language governing permissions and
1.25 + * limitations under the License.
1.26 + */
1.27 +
1.28 +#include "pkix/Time.h"
1.29 +#include "pkixutil.h"
1.30 +#ifdef WIN32
1.31 +#include "windows.h"
1.32 +#else
1.33 +#include "sys/time.h"
1.34 +#endif
1.35 +
1.36 +namespace mozilla { namespace pkix {
1.37 +
1.38 +Time
1.39 +Now()
1.40 +{
1.41 + uint64_t seconds;
1.42 +
1.43 +#ifdef WIN32
1.44 + // "Contains a 64-bit value representing the number of 100-nanosecond
1.45 + // intervals since January 1, 1601 (UTC)."
1.46 + // - http://msdn.microsoft.com/en-us/library/windows/desktop/ms724284(v=vs.85).aspx
1.47 + FILETIME ft;
1.48 + GetSystemTimeAsFileTime(&ft);
1.49 + uint64_t ft64 = (static_cast<uint64_t>(ft.dwHighDateTime) << 32) |
1.50 + ft.dwLowDateTime;
1.51 + seconds = (DaysBeforeYear(1601) * Time::ONE_DAY_IN_SECONDS) +
1.52 + ft64 / (1000u * 1000u * 1000u / 100u);
1.53 +#else
1.54 + // "The gettimeofday() function shall obtain the current time, expressed as
1.55 + // seconds and microseconds since the Epoch."
1.56 + // - http://pubs.opengroup.org/onlinepubs/009695399/functions/gettimeofday.html
1.57 + timeval tv;
1.58 + (void) gettimeofday(&tv, nullptr);
1.59 + seconds = (DaysBeforeYear(1970) * Time::ONE_DAY_IN_SECONDS) + tv.tv_sec;
1.60 +#endif
1.61 +
1.62 + return TimeFromElapsedSecondsAD(seconds);
1.63 +}
1.64 +
1.65 +Time
1.66 +TimeFromEpochInSeconds(uint64_t secondsSinceEpoch)
1.67 +{
1.68 + uint64_t seconds = (DaysBeforeYear(1970) * Time::ONE_DAY_IN_SECONDS) +
1.69 + secondsSinceEpoch;
1.70 + return TimeFromElapsedSecondsAD(seconds);
1.71 +}
1.72 +
1.73 +} } // namespace mozilla::pkix
