mirror of https://github.com/acidanthera/audk.git
103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
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/** @file
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C Run-Time Libraries (CRT) Time Management Routines Wrapper Implementation
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for OpenSSL-based Cryptographic Library (used in DXE & RUNTIME).
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Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Uefi.h>
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#include <OpenSslSupport.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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//
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// -- Time Management Routines --
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//
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#define IsLeap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0))
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#define SECSPERHOUR (60 * 60)
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#define SECSPERDAY (24 * SECSPERHOUR)
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//
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// The arrays give the cumulative number of days up to the first of the
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// month number used as the index (1 -> 12) for regular and leap years.
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// The value at index 13 is for the whole year.
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//
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UINTN CumulativeDays[2][14] = {
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{
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0,
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0,
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31,
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31 + 28,
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31 + 28 + 31,
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31 + 28 + 31 + 30,
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31 + 28 + 31 + 30 + 31,
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31 + 28 + 31 + 30 + 31 + 30,
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31 + 28 + 31 + 30 + 31 + 30 + 31,
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31 + 28 + 31 + 30 + 31 + 30 + 31 + 31,
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31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30,
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31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31,
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31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30,
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31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31
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},
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{
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0,
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0,
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31,
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31 + 29,
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31 + 29 + 31,
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31 + 29 + 31 + 30,
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31 + 29 + 31 + 30 + 31,
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31 + 29 + 31 + 30 + 31 + 30,
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31 + 29 + 31 + 30 + 31 + 30 + 31,
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31 + 29 + 31 + 30 + 31 + 30 + 31 + 31,
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31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30,
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31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31,
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31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30,
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31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31
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}
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};
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/* Get the system time as seconds elapsed since midnight, January 1, 1970. */
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//INTN time(
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// INTN *timer
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// )
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time_t time (time_t *timer)
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{
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EFI_TIME Time;
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UINTN Year;
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//
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// Get the current time and date information
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//
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gRT->GetTime (&Time, NULL);
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//
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// Years Handling
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// UTime should now be set to 00:00:00 on Jan 1 of the current year.
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//
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for (Year = 1970, *timer = 0; Year != Time.Year; Year++) {
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*timer = *timer + (time_t)(CumulativeDays[IsLeap(Year)][13] * SECSPERDAY);
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}
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//
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// Add in number of seconds for current Month, Day, Hour, Minute, Seconds, and TimeZone adjustment
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//
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*timer = *timer +
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(time_t)((Time.TimeZone != EFI_UNSPECIFIED_TIMEZONE) ? (Time.TimeZone * 60) : 0) +
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(time_t)(CumulativeDays[IsLeap(Time.Year)][Time.Month] * SECSPERDAY) +
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(time_t)(((Time.Day > 0) ? Time.Day - 1 : 0) * SECSPERDAY) +
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(time_t)(Time.Hour * SECSPERHOUR) +
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(time_t)(Time.Minute * 60) +
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(time_t)Time.Second;
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return *timer;
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}
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