-STATIC\r
-BOOLEAN\r
-IsValidTimeZone (\r
- IN INT16 TimeZone\r
- )\r
-{\r
- return TimeZone == EFI_UNSPECIFIED_TIMEZONE ||\r
- (TimeZone >= -1440 && TimeZone <= 1440);\r
-}\r
-\r
-STATIC\r
-BOOLEAN\r
-IsValidDaylight (\r
- IN INT8 Daylight\r
- )\r
-{\r
- return Daylight == 0 ||\r
- Daylight == EFI_TIME_ADJUST_DAYLIGHT ||\r
- Daylight == (EFI_TIME_ADJUST_DAYLIGHT | EFI_TIME_IN_DAYLIGHT);\r
-}\r
-\r
-STATIC\r
-BOOLEAN\r
-EFIAPI\r
-IsLeapYear (\r
- IN EFI_TIME *Time\r
- )\r
-{\r
- if (Time->Year % 4 == 0) {\r
- if (Time->Year % 100 == 0) {\r
- if (Time->Year % 400 == 0) {\r
- return TRUE;\r
- } else {\r
- return FALSE;\r
- }\r
- } else {\r
- return TRUE;\r
- }\r
- } else {\r
- return FALSE;\r
- }\r
-}\r
-\r
-STATIC CONST INTN mDayOfMonth[12] = {\r
- 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31\r
-};\r
-\r
-STATIC\r
-BOOLEAN\r
-EFIAPI\r
-IsDayValid (\r
- IN EFI_TIME *Time\r
- )\r
-{\r
- if (Time->Day < 1 ||\r
- Time->Day > mDayOfMonth[Time->Month - 1] ||\r
- (Time->Month == 2 && !IsLeapYear (Time) && Time->Day > 28)) {\r
- return FALSE;\r
- }\r
- return TRUE;\r
-}\r
-\r
-STATIC\r
-BOOLEAN\r
-EFIAPI\r
-IsTimeValid(\r
- IN EFI_TIME *Time\r
- )\r
-{\r
- // Check the input parameters are within the range specified by UEFI\r
- if (Time->Year < 1900 ||\r
- Time->Year > 9999 ||\r
- Time->Month < 1 ||\r
- Time->Month > 12 ||\r
- !IsDayValid (Time) ||\r
- Time->Hour > 23 ||\r
- Time->Minute > 59 ||\r
- Time->Second > 59 ||\r
- Time->Nanosecond > 999999999 ||\r
- !IsValidTimeZone (Time->TimeZone) ||\r
- !IsValidDaylight (Time->Daylight)) {\r
- return FALSE;\r
- }\r
- return TRUE;\r
-}\r
-\r