time_t fileglob_ConvertToTime_t(const FILETIME* fileTime) {
SYSTEMTIME universalSystemTime;
SYSTEMTIME sysTime;
struct tm atm;
FileTimeToSystemTime(fileTime, &universalSystemTime);
if (!fnSystemTimeToTzSpecificLocalTime) {
HMODULE aLib = LoadLibraryA("kernel32.dll");
if (aLib == NULL)
return 0;
*(void**)&fnSystemTimeToTzSpecificLocalTime = (void*)GetProcAddress(aLib, "SystemTimeToTzSpecificLocalTime");
}
fnSystemTimeToTzSpecificLocalTime(NULL, &universalSystemTime, &sysTime);
// then convert the system time to a time_t (C-runtime local time)
if (sysTime.wYear < 1900) {
return 0;
}
atm.tm_sec = sysTime.wSecond & ~1; // Zip files are only accurate to 2 seconds.
atm.tm_min = sysTime.wMinute;
atm.tm_hour = sysTime.wHour;
atm.tm_mday = sysTime.wDay;
atm.tm_mon = sysTime.wMonth - 1; // tm_mon is 0 based
atm.tm_year = sysTime.wYear - 1900; // tm_year is 1900 based
atm.tm_isdst = -1;
return mktime(&atm);
}
static void CalcTsOffset(MIM_TIMEZONE *tz)
{
SYSTEMTIME st, stl;
GetSystemTime(&st);
FILETIME ft;
SystemTimeToFileTime(&st, &ft);
time_t ts1 = FileTimeToUnixTime(&ft);
if (!fnSystemTimeToTzSpecificLocalTime(&tz->tzi, &st, &stl))
return;
SystemTimeToFileTime(&stl, &ft);
time_t ts2 = FileTimeToUnixTime(&ft);
tz->offset = ts2 - ts1;
}
MIR_CORE_DLL(int) TimeZone_GetTimeZoneTime(HANDLE hTZ, SYSTEMTIME *st)
{
if (st == NULL) return 1;
MIM_TIMEZONE *tz = (MIM_TIMEZONE*)hTZ;
if (tz == UTC_TIME_HANDLE)
GetSystemTime(st);
else if (tz && tz != &myInfo.myTZ) {
SYSTEMTIME sto;
GetSystemTime(&sto);
return !fnSystemTimeToTzSpecificLocalTime(&tz->tzi, &sto, st);
}
else
GetLocalTime(st);
return 0;
}
