The Tor Browser: security/pkix/lib/pkixtime.cpp@925c144e1f1f

     1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */

     3 /* This code is made available to you under your choice of the following sets

     4  * of licensing terms:

     5  */

     6 /* This Source Code Form is subject to the terms of the Mozilla Public

     7  * License, v. 2.0. If a copy of the MPL was not distributed with this

     8  * file, You can obtain one at http://mozilla.org/MPL/2.0/.

     9  */

    10 /* Copyright 2014 Mozilla Contributors

    11  *

    12  * Licensed under the Apache License, Version 2.0 (the "License");

    13  * you may not use this file except in compliance with the License.

    14  * You may obtain a copy of the License at

    15  *

    16  *     http://www.apache.org/licenses/LICENSE-2.0

    17  *

    18  * Unless required by applicable law or agreed to in writing, software

    19  * distributed under the License is distributed on an "AS IS" BASIS,

    20  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

    21  * See the License for the specific language governing permissions and

    22  * limitations under the License.

    23  */

    25 #include "pkix/Time.h"

    26 #include "pkixutil.h"

    27 #ifdef WIN32

    28 #include "windows.h"

    29 #else

    30 #include "sys/time.h"

    31 #endif

    33 namespace mozilla { namespace pkix {

    35 Time

    36 Now()

    37 {

    38   uint64_t seconds;

    40 #ifdef WIN32

    41   // "Contains a 64-bit value representing the number of 100-nanosecond

    42   // intervals since January 1, 1601 (UTC)."

    43   //   - http://msdn.microsoft.com/en-us/library/windows/desktop/ms724284(v=vs.85).aspx

    44   FILETIME ft;

    45   GetSystemTimeAsFileTime(&ft);

    46   uint64_t ft64 = (static_cast<uint64_t>(ft.dwHighDateTime) << 32) |

    47                   ft.dwLowDateTime;

    48   seconds = (DaysBeforeYear(1601) * Time::ONE_DAY_IN_SECONDS) +

    49             ft64 / (1000u * 1000u * 1000u / 100u);

    50 #else

    51   // "The gettimeofday() function shall obtain the current time, expressed as

    52   // seconds and microseconds since the Epoch."

    53   //   - http://pubs.opengroup.org/onlinepubs/009695399/functions/gettimeofday.html

    54   timeval tv;

    55   (void) gettimeofday(&tv, nullptr);

    56   seconds = (DaysBeforeYear(1970) * Time::ONE_DAY_IN_SECONDS) + tv.tv_sec;

    57 #endif

    59   return TimeFromElapsedSecondsAD(seconds);

    60 }

    62 Time

    63 TimeFromEpochInSeconds(uint64_t secondsSinceEpoch)

    64 {

    65   uint64_t seconds = (DaysBeforeYear(1970) * Time::ONE_DAY_IN_SECONDS) +

    66                      secondsSinceEpoch;

    67   return TimeFromElapsedSecondsAD(seconds);

    68 }

    70 } } // namespace mozilla::pkix

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