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/* -*- 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
*/
/* 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
*
*
* 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 "mozpkix/Time.h"
#include "mozpkix/pkixutil.h"
#ifdef _WINDOWS
#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 _WINDOWS
// "Contains a 64-bit value representing the number of 100-nanosecond
// intervals since January 1, 1601 (UTC)."
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."
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);
}
Result
SecondsSinceEpochFromTime(Time time, uint64_t* outSeconds)
{
if (!outSeconds) {
return Result::FATAL_ERROR_INVALID_ARGS;
}
Time epoch = TimeFromEpochInSeconds(0);
if (time < epoch) {
return Result::FATAL_ERROR_INVALID_ARGS;
}
*outSeconds = Duration(time, epoch).durationInSeconds;
return Result::Success;
}
} } // namespace mozilla::pkix