/** @file | |
C Run-Time Libraries (CRT) Time Management Routines Wrapper Implementation | |
for OpenSSL-based Cryptographic Library (used in DXE & RUNTIME). | |
Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR> | |
This program and the accompanying materials | |
are licensed and made available under the terms and conditions of the BSD License | |
which accompanies this distribution. The full text of the license may be found at | |
http://opensource.org/licenses/bsd-license.php | |
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
**/ | |
#include <Uefi.h> | |
#include <OpenSslSupport.h> | |
#include <Library/UefiRuntimeServicesTableLib.h> | |
// | |
// -- Time Management Routines -- | |
// | |
#define IsLeap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0)) | |
#define SECSPERMIN (60) | |
#define SECSPERHOUR (60 * 60) | |
#define SECSPERDAY (24 * SECSPERHOUR) | |
// | |
// The arrays give the cumulative number of days up to the first of the | |
// month number used as the index (1 -> 12) for regular and leap years. | |
// The value at index 13 is for the whole year. | |
// | |
UINTN CumulativeDays[2][14] = { | |
{ | |
0, | |
0, | |
31, | |
31 + 28, | |
31 + 28 + 31, | |
31 + 28 + 31 + 30, | |
31 + 28 + 31 + 30 + 31, | |
31 + 28 + 31 + 30 + 31 + 30, | |
31 + 28 + 31 + 30 + 31 + 30 + 31, | |
31 + 28 + 31 + 30 + 31 + 30 + 31 + 31, | |
31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30, | |
31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31, | |
31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30, | |
31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31 | |
}, | |
{ | |
0, | |
0, | |
31, | |
31 + 29, | |
31 + 29 + 31, | |
31 + 29 + 31 + 30, | |
31 + 29 + 31 + 30 + 31, | |
31 + 29 + 31 + 30 + 31 + 30, | |
31 + 29 + 31 + 30 + 31 + 30 + 31, | |
31 + 29 + 31 + 30 + 31 + 30 + 31 + 31, | |
31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30, | |
31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31, | |
31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30, | |
31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31 | |
} | |
}; | |
/* Get the system time as seconds elapsed since midnight, January 1, 1970. */ | |
//INTN time( | |
// INTN *timer | |
// ) | |
time_t time (time_t *timer) | |
{ | |
EFI_TIME Time; | |
UINTN Year; | |
// | |
// Get the current time and date information | |
// | |
gRT->GetTime (&Time, NULL); | |
// | |
// Years Handling | |
// UTime should now be set to 00:00:00 on Jan 1 of the current year. | |
// | |
for (Year = 1970, *timer = 0; Year != Time.Year; Year++) { | |
*timer = *timer + (time_t)(CumulativeDays[IsLeap(Year)][13] * SECSPERDAY); | |
} | |
// | |
// Add in number of seconds for current Month, Day, Hour, Minute, Seconds, and TimeZone adjustment | |
// | |
*timer = *timer + | |
(time_t)((Time.TimeZone != EFI_UNSPECIFIED_TIMEZONE) ? (Time.TimeZone * 60) : 0) + | |
(time_t)(CumulativeDays[IsLeap(Time.Year)][Time.Month] * SECSPERDAY) + | |
(time_t)(((Time.Day > 0) ? Time.Day - 1 : 0) * SECSPERDAY) + | |
(time_t)(Time.Hour * SECSPERHOUR) + | |
(time_t)(Time.Minute * 60) + | |
(time_t)Time.Second; | |
return *timer; | |
} | |
// | |
// Convert a time value from type time_t to struct tm. | |
// | |
struct tm * gmtime (const time_t *timer) | |
{ | |
struct tm *GmTime; | |
UINT16 DayNo; | |
UINT16 DayRemainder; | |
time_t Year; | |
time_t YearNo; | |
UINT16 TotalDays; | |
UINT16 MonthNo; | |
if (timer == NULL) { | |
return NULL; | |
} | |
GmTime = malloc (sizeof (struct tm)); | |
if (GmTime == NULL) { | |
return NULL; | |
} | |
ZeroMem ((VOID *) GmTime, (UINTN) sizeof (struct tm)); | |
DayNo = (UINT16) (*timer / SECSPERDAY); | |
DayRemainder = (UINT16) (*timer % SECSPERDAY); | |
GmTime->tm_sec = (int) (DayRemainder % SECSPERMIN); | |
GmTime->tm_min = (int) ((DayRemainder % SECSPERHOUR) / SECSPERMIN); | |
GmTime->tm_hour = (int) (DayRemainder / SECSPERHOUR); | |
GmTime->tm_wday = (int) ((DayNo + 4) % 7); | |
for (Year = 1970, YearNo = 0; DayNo > 0; Year++) { | |
TotalDays = (UINT16) (IsLeap (Year) ? 366 : 365); | |
if (DayNo >= TotalDays) { | |
DayNo = (UINT16) (DayNo - TotalDays); | |
YearNo++; | |
} else { | |
break; | |
} | |
} | |
GmTime->tm_year = (int) (YearNo + (1970 - 1900)); | |
GmTime->tm_yday = (int) DayNo; | |
for (MonthNo = 12; MonthNo > 1; MonthNo--) { | |
if (DayNo >= CumulativeDays[IsLeap(Year)][MonthNo]) { | |
DayNo = (UINT16) (DayNo - (UINT16) (CumulativeDays[IsLeap(Year)][MonthNo])); | |
break; | |
} | |
} | |
GmTime->tm_mon = (int) MonthNo - 1; | |
GmTime->tm_mday = (int) DayNo + 1; | |
GmTime->tm_isdst = 0; | |
GmTime->tm_gmtoff = 0; | |
GmTime->tm_zone = NULL; | |
return GmTime; | |
} |