/***********************************************************************
* GetTimeZoneInformationForYear (KERNEL32.@)
*/
BOOL WINAPI GetTimeZoneInformationForYear( USHORT wYear,
PDYNAMIC_TIME_ZONE_INFORMATION pdtzi, LPTIME_ZONE_INFORMATION ptzi )
{
DYNAMIC_TIME_ZONE_INFORMATION local_dtzi, result;
if (!pdtzi)
{
if (GetDynamicTimeZoneInformation(&local_dtzi) == TIME_ZONE_ID_INVALID)
return FALSE;
pdtzi = &local_dtzi;
}
if (!TIME_GetSpecificTimeZoneInfo(pdtzi->TimeZoneKeyName, wYear,
!pdtzi->DynamicDaylightTimeDisabled, &result))
return FALSE;
memcpy(ptzi, &result, sizeof(*ptzi));
return TRUE;
}
/***********************************************************************
* TIMEZONE_InitRegistry
*
* Update registry contents on startup if the user timezone has changed.
* This simulates the action of the Windows control panel.
*/
void TIMEZONE_InitRegistry(void)
{
static const WCHAR szTimezoneInformation[] = {
'M','a','c','h','i','n','e','\\','S','y','s','t','e','m','\\',
'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
'C','o','n','t','r','o','l','\\',
'T','i','m','e','Z','o','n','e','I','n','f','o','r','m','a','t','i','o','n','\0'
};
WCHAR standardnameW[] = {'S','t','a','n','d','a','r','d','N','a','m','e','\0'};
WCHAR timezonekeynameW[] = {'T','i','m','e','Z','o','n','e','K','e','y','N','a','m','e','\0'};
DYNAMIC_TIME_ZONE_INFORMATION tzinfo;
UNICODE_STRING keyName;
OBJECT_ATTRIBUTES attr;
HANDLE hkey;
DWORD tzid;
tzid = GetDynamicTimeZoneInformation(&tzinfo);
if (tzid == TIME_ZONE_ID_INVALID)
{
ERR("fail to get timezone information.\n");
return;
}
RtlInitUnicodeString(&keyName, szTimezoneInformation);
InitializeObjectAttributes(&attr, &keyName, 0, 0, NULL);
if (NtCreateKey(&hkey, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL) != STATUS_SUCCESS)
{
ERR("fail to create timezone information key.\n");
return;
}
RtlInitUnicodeString(&keyName, standardnameW);
NtSetValueKey(hkey, &keyName, 0, REG_SZ, tzinfo.StandardName,
(strlenW(tzinfo.StandardName) + 1) * sizeof(WCHAR));
RtlInitUnicodeString(&keyName, timezonekeynameW);
NtSetValueKey(hkey, &keyName, 0, REG_SZ, tzinfo.TimeZoneKeyName,
(strlenW(tzinfo.TimeZoneKeyName) + 1) * sizeof(WCHAR));
NtClose( hkey );
}
Timezone::Timezone() : _offset(0),_dstOffset(3600000) {
#if defined(_WIN32)
/// GET LOCAL INFOS
_tzset();
//// LOAD default values ////////////////////////
DYNAMIC_TIME_ZONE_INFORMATION timezoneInfo;
DWORD result = GetDynamicTimeZoneInformation(&timezoneInfo);
_offset=(-(Int32)timezoneInfo.Bias*60000);
if (result != TIME_ZONE_ID_UNKNOWN)
_dstOffset = (-(Int32)timezoneInfo.DaylightBias*60000);
_dstOffset += _offset;
fillDefaultTransitionRule(timezoneInfo.DaylightDate,_offset,_dstOffset,true,_StartDST);
fillDefaultTransitionRule(timezoneInfo.StandardDate,_offset,_dstOffset,false,_EndDST);
int size(sizeof(timezoneInfo.TimeZoneKeyName));
_name.resize(size);
if ((size = WideCharToMultiByte(CP_ACP, 0, timezoneInfo.TimeZoneKeyName, -1, (char*)_name.data(), _name.size(), NULL, NULL)) > 0) {
_name.resize(size-1);
static const map<string, const char*> WindowToTZID ({
{ "AUS Central Standard Time", "Australia/Darwin" },
{ "AUS Eastern Standard Time", "Australia/Sydney" },
{ "Afghanistan Standard Time", "Asia/Kabul" },
{ "Alaskan Standard Time", "America/Anchorage" },
{ "Arab Standard Time", "Asia/Riyadh" },
{ "Arabian Standard Time", "Asia/Dubai" },
{ "Arabic Standard Time", "Asia/Baghdad" },
{ "Argentina Standard Time", "America/Buenos_Aires" },
{ "Atlantic Standard Time", "America/Halifax" },
{ "Azerbaijan Standard Time", "Asia/Baku" },
{ "Azores Standard Time", "Atlantic/Azores" },
{ "Bahia Standard Time", "America/Bahia" },
{ "Bangladesh Standard Time", "Asia/Dhaka" },
{ "Canada Central Standard Time", "America/Regina" },
{ "Cape Verde Standard Time", "Atlantic/Cape_Verde" },
{ "Caucasus Standard Time", "Asia/Yerevan" },
{ "Cen. Australia Standard Time", "Australia/Adelaide" },
{ "Central America Standard Time", "America/Guatemala" },
{ "Central Asia Standard Time", "Asia/Almaty" },
{ "Central Brazilian Standard Time", "America/Cuiaba" },
{ "Central Europe Standard Time", "Europe/Budapest" },
{ "Central European Standard Time", "Europe/Warsaw" },
{ "Central Pacific Standard Time", "Pacific/Guadalcanal" },
{ "Central Standard Time", "America/Chicago" },
{ "China Standard Time", "Asia/Shanghai" },
{ "Dateline Standard Time", "Etc/GMT+12" },
{ "E. Africa Standard Time", "Africa/Nairobi" },
{ "E. Australia Standard Time", "Australia/Brisbane" },
{ "E. Europe Standard Time", "Asia/Nicosia" },
{ "E. South America Standard Time", "America/Sao_Paulo" },
{ "Eastern Standard Time", "America/New_York" },
{ "Egypt Standard Time", "Africa/Cairo" },
{ "Ekaterinburg Standard Time", "Asia/Yekaterinburg" },
{ "FLE Standard Time", "Europe/Kiev" },
{ "Fiji Standard Time", "Pacific/Fiji" },
{ "GMT Standard Time", "Europe/London" },
{ "GTB Standard Time", "Europe/Bucharest" },
{ "Georgian Standard Time", "Asia/Tbilisi" },
{ "Greenland Standard Time", "America/Godthab" },
{ "Greenwich Standard Time", "Atlantic/Reykjavik" },
{ "Hawaiian Standard Time", "Pacific/Honolulu" },
{ "India Standard Time", "Asia/Calcutta" },
{ "Iran Standard Time", "Asia/Tehran" },
{ "Israel Standard Time", "Asia/Jerusalem" },
{ "Jordan Standard Time", "Asia/Amman" },
{ "Kaliningrad Standard Time", "Europe/Kaliningrad" },
{ "Korea Standard Time", "Asia/Seoul" },
{ "Libya Standard Time", "Africa/Tripoli" },
{ "Magadan Standard Time", "Asia/Magadan" },
{ "Mauritius Standard Time", "Indian/Mauritius" },
{ "Mauritius Standard Time", "Indian/Reunion" },
{ "Middle East Standard Time", "Asia/Beirut" },
{ "Montevideo Standard Time", "America/Montevideo" },
{ "Morocco Standard Time", "Africa/Casablanca" },
{ "Mountain Standard Time", "America/Denver" },
{ "Myanmar Standard Time", "Asia/Rangoon" },
{ "N. Central Asia Standard Time", "Asia/Novosibirsk" },
{ "Namibia Standard Time", "Africa/Windhoek" },
{ "Nepal Standard Time", "Asia/Katmandu" },
{ "New Zealand Standard Time", "Pacific/Auckland" },
{ "Newfoundland Standard Time", "America/St_Johns" },
{ "North Asia East Standard Time", "Asia/Irkutsk" },
{ "North Asia Standard Time", "Asia/Krasnoyarsk" },
{ "Pacific SA Standard Time", "America/Santiago" },
{ "Pacific Standard Time", "America/Los_Angeles" },
{ "Pakistan Standard Time", "Asia/Karachi" },
{ "Paraguay Standard Time", "America/Asuncion" },
{ "Romance Standard Time", "Europe/Paris" },
{ "Russian Standard Time", "Europe/Moscow" },
{ "SA Eastern Standard Time", "America/Cayenne" },
{ "SA Pacific Standard Time", "America/Bogota" },
{ "SA Western Standard Time", "America/La_Paz" },
{ "SE Asia Standard Time", "Asia/Bangkok" },
{ "Samoa Standard Time", "Pacific/Apia" },
{ "Singapore Standard Time", "Asia/Singapore" },
{ "South Africa Standard Time", "Africa/Johannesburg" },
{ "Sri Lanka Standard Time", "Asia/Colombo" },
{ "Syria Standard Time", "Asia/Damascus" },
{ "Taipei Standard Time", "Asia/Taipei" },
{ "Tasmania Standard Time", "Australia/Hobart" },
{ "Tokyo Standard Time", "Asia/Tokyo" },
{ "Tonga Standard Time", "Pacific/Tongatapu" },
{ "Turkey Standard Time", "Europe/Istanbul" },
{ "US Eastern Standard Time", "America/Indianapolis" },
{ "US Mountain Standard Time", "America/Phoenix" },
{ "UTC", "Etc/GMT" },
{ "UTC+12", "Etc/GMT-12" },
{ "UTC-02", "Etc/GMT+2" },
{ "UTC-11", "Etc/GMT+11" },
{ "Ulaanbaatar Standard Time", "Asia/Ulaanbaatar" },
{ "Venezuela Standard Time", "America/Caracas" },
{ "Vladivostok Standard Time", "Asia/Vladivostok" },
{ "W. Australia Standard Time", "Australia/Perth" },
{ "W. Central Africa Standard Time", "Africa/Lagos" },
{ "W. Europe Standard Time", "Europe/Berlin" },
{ "West Asia Standard Time", "Asia/Tashkent" },
{ "West Pacific Standard Time", "Pacific/Port_Moresby" },
{ "Yakutsk Standard Time", "Asia/Yakutsk" },
});
auto& it = WindowToTZID.find(_name);
if (it != WindowToTZID.end())
_name.assign(it->second);
} else
_name.clear();
#else
tzset();
#if defined(_OS_BSD) // timezone not available on BSD
std::time_t now = std::time(NULL);
struct std::tm t;
gmtime_r(&now, &t);
_offset = now - std::mktime(&t);
#else
_offset = (-(Int32)timezone*1000);
#endif
_name.assign(tzname[0]);
_dstOffset += _offset;
#endif
if (_name.empty())
return; // no more TZ information available
//// LOAD TZ database ////////////////////////
string path;
if(Util::Environment().getString("TZDIR",path)) {
FileSystem::MakeDirectory(path).append(_name);
if(readTZDatabase(path))
return;
}
#if !defined(_WIN32)
path.assign("/usr/lib/zoneinfo/").append(_name);
if(readTZDatabase(path))
return;
path.assign("/usr/share/zoneinfo/").append(_name);
if(readTZDatabase(path))
return;
#endif
if (FileSystem::GetCurrent(path)) {
path.append("zoneinfo/").append(_name);
if(readTZDatabase(path))
return;
}
if (FileSystem::GetCurrentApplication(path)) {
FileSystem::GetParent(path).append("zoneinfo/").append(_name);
if(readTZDatabase(path))
return;
}
#if !defined(_WIN32)
path.assign("/etc/localtime");
readTZDatabase(path);
#endif
}