2 C Run-Time Libraries (CRT) Time Management Routines Wrapper Implementation
3 for OpenSSL-based Cryptographic Library (used in DXE & RUNTIME).
5 Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
6 This program and the accompanying materials
7 are licensed and made available under the terms and conditions of the BSD License
8 which accompanies this distribution. The full text of the license may be found at
9 http://opensource.org/licenses/bsd-license.php
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
17 #include <OpenSslSupport.h>
18 #include <Library/UefiRuntimeServicesTableLib.h>
21 // -- Time Management Routines --
24 #define IsLeap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0))
25 #define SECSPERHOUR (60 * 60)
26 #define SECSPERDAY (24 * SECSPERHOUR)
29 // The arrays give the cumulative number of days up to the first of the
30 // month number used as the index (1 -> 12) for regular and leap years.
31 // The value at index 13 is for the whole year.
33 UINTN CumulativeDays
[2][14] = {
41 31 + 28 + 31 + 30 + 31,
42 31 + 28 + 31 + 30 + 31 + 30,
43 31 + 28 + 31 + 30 + 31 + 30 + 31,
44 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31,
45 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30,
46 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31,
47 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30,
48 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31
57 31 + 29 + 31 + 30 + 31,
58 31 + 29 + 31 + 30 + 31 + 30,
59 31 + 29 + 31 + 30 + 31 + 30 + 31,
60 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31,
61 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30,
62 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31,
63 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30,
64 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31
68 /* Get the system time as seconds elapsed since midnight, January 1, 1970. */
72 time_t time (time_t *timer
)
78 // Get the current time and date information
80 gRT
->GetTime (&Time
, NULL
);
84 // UTime should now be set to 00:00:00 on Jan 1 of the current year.
86 for (Year
= 1970, *timer
= 0; Year
!= Time
.Year
; Year
++) {
87 *timer
= *timer
+ (time_t)(CumulativeDays
[IsLeap(Year
)][13] * SECSPERDAY
);
91 // Add in number of seconds for current Month, Day, Hour, Minute, Seconds, and TimeZone adjustment
94 (time_t)((Time
.TimeZone
!= EFI_UNSPECIFIED_TIMEZONE
) ? (Time
.TimeZone
* 60) : 0) +
95 (time_t)(CumulativeDays
[IsLeap(Time
.Year
)][Time
.Month
] * SECSPERDAY
) +
96 (time_t)(((Time
.Day
> 0) ? Time
.Day
- 1 : 0) * SECSPERDAY
) +
97 (time_t)(Time
.Hour
* SECSPERHOUR
) +
98 (time_t)(Time
.Minute
* 60) +