Source code of Windows XP (NT5)
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/*++
Copyright (c) 1999 Intel Corporation
Module Name:
date.c
Abstract:
Revision History
--*/
#include "shell.h"
EFI_STATUS
InitializeDate (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
);
EFI_DRIVER_ENTRY_POINT(InitializeDate)
EFI_STATUS
InitializeDate (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
/*+++
date [mm/dd/yyyy]
--*/
{
EFI_STATUS Status;
EFI_TIME Time;
CHAR16 *DateString;
UINT32 i;
InstallInternalShellCommand (
ImageHandle, SystemTable, InitializeDate,
L"date", /* command */
L"date [mm/dd/yyyy]", /* command syntax */
L"Get or set date", /* 1 line descriptor */
NULL /* command help page */
);
InitializeShellApplication (ImageHandle, SystemTable);
if (SI->Argc > 2) {
Print(L"date [mm/dd/yyyy]\n");
return EFI_SUCCESS;
}
if (SI->Argc == 1) {
Status = RT->GetTime(&Time,NULL);
if (!EFI_ERROR(Status)) {
Print(L"%02d/%02d/%04d\n",Time.Month,Time.Day,Time.Year);
}
return EFI_SUCCESS;
}
if (StrCmp(SI->Argv[1],L"/?") == 0) {
Print(L"date [mm/dd/yyyy]\n");
return EFI_SUCCESS;
}
if (StrCmp(SI->Argv[1],L"/h") == 0) {
Print(L"date [mm/dd/yyyy]\n");
return EFI_SUCCESS;
}
Status = RT->GetTime(&Time,NULL);
if (EFI_ERROR(Status)) {
Print(L"error : Clock not functional\n");
return Status;
}
DateString = SI->Argv[1];
Time.Month = (UINT8)Atoi(DateString);
if (Time.Month<1 || Time.Month>12) {
Print(L"error : invalid month\n");
return EFI_INVALID_PARAMETER;
}
for(i=0;i<StrLen(DateString) && DateString[i]!='/';i++);
if (DateString[i]=='/') {
i++;
Time.Day = (UINT8)Atoi(&(DateString[i]));
if (Time.Day<1 || Time.Day>31) {
Print(L"error : invalid day\n");
return EFI_INVALID_PARAMETER;
}
for(;i<StrLen(DateString) && DateString[i]!='/';i++);
if (DateString[i]=='/') {
i++;
Time.Year = (UINT16)Atoi(&(DateString[i]));
if (Time.Year<100) {
Time.Year = Time.Year + 1900;
if (Time.Year < 1998) {
Time.Year = Time.Year + 100;
}
}
if (Time.Year < 1998) {
Print(L"error : invalid year\n");
return EFI_INVALID_PARAMETER;
}
Status = RT->SetTime(&Time);
if (EFI_ERROR(Status)) {
Print(L"error : Clock not functional\n");
return Status;
}
return EFI_SUCCESS;
}
}
Print(L"error : invalid date format\n");
return EFI_INVALID_PARAMETER;
}