| /* |
| * Nt time functions. |
| * |
| * RtlTimeToTimeFields, RtlTimeFieldsToTime and defines are taken from ReactOS and |
| * adapted to wine with special permissions of the author. This code is |
| * Copyright 2002 Rex Jolliff (rex@lvcablemodem.com) |
| * |
| * Copyright 1999 Juergen Schmied |
| * Copyright 2007 Dmitry Timoshkov |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| */ |
| |
| #include "config.h" |
| #include "wine/port.h" |
| |
| #include <stdarg.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| #include <string.h> |
| #include <limits.h> |
| #include <time.h> |
| #ifdef HAVE_SYS_TIME_H |
| # include <sys/time.h> |
| #endif |
| #ifdef HAVE_UNISTD_H |
| # include <unistd.h> |
| #endif |
| #ifdef __APPLE__ |
| # include <mach/mach_time.h> |
| #endif |
| |
| #include "ntstatus.h" |
| #define WIN32_NO_STATUS |
| #include "windef.h" |
| #include "winternl.h" |
| #include "wine/exception.h" |
| #include "wine/unicode.h" |
| #include "wine/debug.h" |
| #include "ntdll_misc.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(ntdll); |
| |
| static int init_tz_info(RTL_DYNAMIC_TIME_ZONE_INFORMATION *tzi); |
| |
| static RTL_CRITICAL_SECTION TIME_tz_section; |
| static RTL_CRITICAL_SECTION_DEBUG critsect_debug = |
| { |
| 0, 0, &TIME_tz_section, |
| { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList }, |
| 0, 0, { (DWORD_PTR)(__FILE__ ": TIME_tz_section") } |
| }; |
| static RTL_CRITICAL_SECTION TIME_tz_section = { &critsect_debug, -1, 0, 0, 0, 0 }; |
| |
| #define TICKSPERSEC 10000000 |
| #define TICKSPERMSEC 10000 |
| #define SECSPERDAY 86400 |
| #define SECSPERHOUR 3600 |
| #define SECSPERMIN 60 |
| #define MINSPERHOUR 60 |
| #define HOURSPERDAY 24 |
| #define EPOCHWEEKDAY 1 /* Jan 1, 1601 was Monday */ |
| #define DAYSPERWEEK 7 |
| #define MONSPERYEAR 12 |
| #define DAYSPERQUADRICENTENNIUM (365 * 400 + 97) |
| #define DAYSPERNORMALQUADRENNIUM (365 * 4 + 1) |
| |
| /* 1601 to 1970 is 369 years plus 89 leap days */ |
| #define SECS_1601_TO_1970 ((369 * 365 + 89) * (ULONGLONG)SECSPERDAY) |
| #define TICKS_1601_TO_1970 (SECS_1601_TO_1970 * TICKSPERSEC) |
| /* 1601 to 1980 is 379 years plus 91 leap days */ |
| #define SECS_1601_TO_1980 ((379 * 365 + 91) * (ULONGLONG)SECSPERDAY) |
| #define TICKS_1601_TO_1980 (SECS_1601_TO_1980 * TICKSPERSEC) |
| |
| |
| static const int MonthLengths[2][MONSPERYEAR] = |
| { |
| { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, |
| { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } |
| }; |
| |
| static inline BOOL IsLeapYear(int Year) |
| { |
| return Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0); |
| } |
| |
| /* return a monotonic time counter, in Win32 ticks */ |
| static ULONGLONG monotonic_counter(void) |
| { |
| struct timeval now; |
| |
| #ifdef __APPLE__ |
| static mach_timebase_info_data_t timebase; |
| |
| if (!timebase.denom) mach_timebase_info( &timebase ); |
| return mach_absolute_time() * timebase.numer / timebase.denom / 100; |
| #elif defined(HAVE_CLOCK_GETTIME) |
| struct timespec ts; |
| #ifdef CLOCK_MONOTONIC_RAW |
| if (!clock_gettime( CLOCK_MONOTONIC_RAW, &ts )) |
| return ts.tv_sec * (ULONGLONG)TICKSPERSEC + ts.tv_nsec / 100; |
| #endif |
| if (!clock_gettime( CLOCK_MONOTONIC, &ts )) |
| return ts.tv_sec * (ULONGLONG)TICKSPERSEC + ts.tv_nsec / 100; |
| #endif |
| |
| gettimeofday( &now, 0 ); |
| return now.tv_sec * (ULONGLONG)TICKSPERSEC + now.tv_usec * 10 + TICKS_1601_TO_1970 - server_start_time; |
| } |
| |
| /****************************************************************************** |
| * RtlTimeToTimeFields [NTDLL.@] |
| * |
| * Convert a time into a TIME_FIELDS structure. |
| * |
| * PARAMS |
| * liTime [I] Time to convert. |
| * TimeFields [O] Destination for the converted time. |
| * |
| * RETURNS |
| * Nothing. |
| */ |
| VOID WINAPI RtlTimeToTimeFields( |
| const LARGE_INTEGER *liTime, |
| PTIME_FIELDS TimeFields) |
| { |
| int SecondsInDay; |
| long int cleaps, years, yearday, months; |
| long int Days; |
| LONGLONG Time; |
| |
| /* Extract millisecond from time and convert time into seconds */ |
| TimeFields->Milliseconds = |
| (CSHORT) (( liTime->QuadPart % TICKSPERSEC) / TICKSPERMSEC); |
| Time = liTime->QuadPart / TICKSPERSEC; |
| |
| /* The native version of RtlTimeToTimeFields does not take leap seconds |
| * into account */ |
| |
| /* Split the time into days and seconds within the day */ |
| Days = Time / SECSPERDAY; |
| SecondsInDay = Time % SECSPERDAY; |
| |
| /* compute time of day */ |
| TimeFields->Hour = (CSHORT) (SecondsInDay / SECSPERHOUR); |
| SecondsInDay = SecondsInDay % SECSPERHOUR; |
| TimeFields->Minute = (CSHORT) (SecondsInDay / SECSPERMIN); |
| TimeFields->Second = (CSHORT) (SecondsInDay % SECSPERMIN); |
| |
| /* compute day of week */ |
| TimeFields->Weekday = (CSHORT) ((EPOCHWEEKDAY + Days) % DAYSPERWEEK); |
| |
| /* compute year, month and day of month. */ |
| cleaps=( 3 * ((4 * Days + 1227) / DAYSPERQUADRICENTENNIUM) + 3 ) / 4; |
| Days += 28188 + cleaps; |
| years = (20 * Days - 2442) / (5 * DAYSPERNORMALQUADRENNIUM); |
| yearday = Days - (years * DAYSPERNORMALQUADRENNIUM)/4; |
| months = (64 * yearday) / 1959; |
| /* the result is based on a year starting on March. |
| * To convert take 12 from Januari and Februari and |
| * increase the year by one. */ |
| if( months < 14 ) { |
| TimeFields->Month = months - 1; |
| TimeFields->Year = years + 1524; |
| } else { |
| TimeFields->Month = months - 13; |
| TimeFields->Year = years + 1525; |
| } |
| /* calculation of day of month is based on the wonderful |
| * sequence of INT( n * 30.6): it reproduces the |
| * 31-30-31-30-31-31 month lengths exactly for small n's */ |
| TimeFields->Day = yearday - (1959 * months) / 64 ; |
| return; |
| } |
| |
| /****************************************************************************** |
| * RtlTimeFieldsToTime [NTDLL.@] |
| * |
| * Convert a TIME_FIELDS structure into a time. |
| * |
| * PARAMS |
| * ftTimeFields [I] TIME_FIELDS structure to convert. |
| * Time [O] Destination for the converted time. |
| * |
| * RETURNS |
| * Success: TRUE. |
| * Failure: FALSE. |
| */ |
| BOOLEAN WINAPI RtlTimeFieldsToTime( |
| PTIME_FIELDS tfTimeFields, |
| PLARGE_INTEGER Time) |
| { |
| int month, year, cleaps, day; |
| |
| /* FIXME: normalize the TIME_FIELDS structure here */ |
| /* No, native just returns 0 (error) if the fields are not */ |
| if( tfTimeFields->Milliseconds< 0 || tfTimeFields->Milliseconds > 999 || |
| tfTimeFields->Second < 0 || tfTimeFields->Second > 59 || |
| tfTimeFields->Minute < 0 || tfTimeFields->Minute > 59 || |
| tfTimeFields->Hour < 0 || tfTimeFields->Hour > 23 || |
| tfTimeFields->Month < 1 || tfTimeFields->Month > 12 || |
| tfTimeFields->Day < 1 || |
| tfTimeFields->Day > MonthLengths |
| [ tfTimeFields->Month ==2 || IsLeapYear(tfTimeFields->Year)] |
| [ tfTimeFields->Month - 1] || |
| tfTimeFields->Year < 1601 ) |
| return FALSE; |
| |
| /* now calculate a day count from the date |
| * First start counting years from March. This way the leap days |
| * are added at the end of the year, not somewhere in the middle. |
| * Formula's become so much less complicate that way. |
| * To convert: add 12 to the month numbers of Jan and Feb, and |
| * take 1 from the year */ |
| if(tfTimeFields->Month < 3) { |
| month = tfTimeFields->Month + 13; |
| year = tfTimeFields->Year - 1; |
| } else { |
| month = tfTimeFields->Month + 1; |
| year = tfTimeFields->Year; |
| } |
| cleaps = (3 * (year / 100) + 3) / 4; /* nr of "century leap years"*/ |
| day = (36525 * year) / 100 - cleaps + /* year * dayperyr, corrected */ |
| (1959 * month) / 64 + /* months * daypermonth */ |
| tfTimeFields->Day - /* day of the month */ |
| 584817 ; /* zero that on 1601-01-01 */ |
| /* done */ |
| |
| Time->QuadPart = (((((LONGLONG) day * HOURSPERDAY + |
| tfTimeFields->Hour) * MINSPERHOUR + |
| tfTimeFields->Minute) * SECSPERMIN + |
| tfTimeFields->Second ) * 1000 + |
| tfTimeFields->Milliseconds ) * TICKSPERMSEC; |
| |
| return TRUE; |
| } |
| |
| /*********************************************************************** |
| * TIME_GetBias [internal] |
| * |
| * Helper function calculates delta local time from UTC. |
| * |
| * PARAMS |
| * utc [I] The current utc time. |
| * pdaylight [I] Local daylight. |
| * |
| * RETURNS |
| * The bias for the current timezone. |
| */ |
| static LONG TIME_GetBias(void) |
| { |
| static time_t last_utc; |
| static LONG last_bias; |
| LONG ret; |
| time_t utc; |
| |
| utc = time( NULL ); |
| |
| RtlEnterCriticalSection( &TIME_tz_section ); |
| if (utc != last_utc) |
| { |
| RTL_DYNAMIC_TIME_ZONE_INFORMATION tzi; |
| int is_dst = init_tz_info( &tzi ); |
| |
| last_utc = utc; |
| last_bias = tzi.Bias; |
| last_bias += is_dst ? tzi.DaylightBias : tzi.StandardBias; |
| last_bias *= SECSPERMIN; |
| } |
| |
| ret = last_bias; |
| |
| RtlLeaveCriticalSection( &TIME_tz_section ); |
| return ret; |
| } |
| |
| /****************************************************************************** |
| * RtlLocalTimeToSystemTime [NTDLL.@] |
| * |
| * Convert a local time into system time. |
| * |
| * PARAMS |
| * LocalTime [I] Local time to convert. |
| * SystemTime [O] Destination for the converted time. |
| * |
| * RETURNS |
| * Success: STATUS_SUCCESS. |
| * Failure: An NTSTATUS error code indicating the problem. |
| */ |
| NTSTATUS WINAPI RtlLocalTimeToSystemTime( const LARGE_INTEGER *LocalTime, |
| PLARGE_INTEGER SystemTime) |
| { |
| LONG bias; |
| |
| TRACE("(%p, %p)\n", LocalTime, SystemTime); |
| |
| bias = TIME_GetBias(); |
| SystemTime->QuadPart = LocalTime->QuadPart + bias * (LONGLONG)TICKSPERSEC; |
| return STATUS_SUCCESS; |
| } |
| |
| /****************************************************************************** |
| * RtlSystemTimeToLocalTime [NTDLL.@] |
| * |
| * Convert a system time into a local time. |
| * |
| * PARAMS |
| * SystemTime [I] System time to convert. |
| * LocalTime [O] Destination for the converted time. |
| * |
| * RETURNS |
| * Success: STATUS_SUCCESS. |
| * Failure: An NTSTATUS error code indicating the problem. |
| */ |
| NTSTATUS WINAPI RtlSystemTimeToLocalTime( const LARGE_INTEGER *SystemTime, |
| PLARGE_INTEGER LocalTime ) |
| { |
| LONG bias; |
| |
| TRACE("(%p, %p)\n", SystemTime, LocalTime); |
| |
| bias = TIME_GetBias(); |
| LocalTime->QuadPart = SystemTime->QuadPart - bias * (LONGLONG)TICKSPERSEC; |
| return STATUS_SUCCESS; |
| } |
| |
| /****************************************************************************** |
| * RtlTimeToSecondsSince1970 [NTDLL.@] |
| * |
| * Convert a time into a count of seconds since 1970. |
| * |
| * PARAMS |
| * Time [I] Time to convert. |
| * Seconds [O] Destination for the converted time. |
| * |
| * RETURNS |
| * Success: TRUE. |
| * Failure: FALSE, if the resulting value will not fit in a DWORD. |
| */ |
| BOOLEAN WINAPI RtlTimeToSecondsSince1970( const LARGE_INTEGER *Time, LPDWORD Seconds ) |
| { |
| ULONGLONG tmp = Time->QuadPart / TICKSPERSEC - SECS_1601_TO_1970; |
| if (tmp > 0xffffffff) return FALSE; |
| *Seconds = tmp; |
| return TRUE; |
| } |
| |
| /****************************************************************************** |
| * RtlTimeToSecondsSince1980 [NTDLL.@] |
| * |
| * Convert a time into a count of seconds since 1980. |
| * |
| * PARAMS |
| * Time [I] Time to convert. |
| * Seconds [O] Destination for the converted time. |
| * |
| * RETURNS |
| * Success: TRUE. |
| * Failure: FALSE, if the resulting value will not fit in a DWORD. |
| */ |
| BOOLEAN WINAPI RtlTimeToSecondsSince1980( const LARGE_INTEGER *Time, LPDWORD Seconds ) |
| { |
| ULONGLONG tmp = Time->QuadPart / TICKSPERSEC - SECS_1601_TO_1980; |
| if (tmp > 0xffffffff) return FALSE; |
| *Seconds = tmp; |
| return TRUE; |
| } |
| |
| /****************************************************************************** |
| * RtlSecondsSince1970ToTime [NTDLL.@] |
| * |
| * Convert a count of seconds since 1970 to a time. |
| * |
| * PARAMS |
| * Seconds [I] Time to convert. |
| * Time [O] Destination for the converted time. |
| * |
| * RETURNS |
| * Nothing. |
| */ |
| void WINAPI RtlSecondsSince1970ToTime( DWORD Seconds, LARGE_INTEGER *Time ) |
| { |
| Time->QuadPart = Seconds * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970; |
| } |
| |
| /****************************************************************************** |
| * RtlSecondsSince1980ToTime [NTDLL.@] |
| * |
| * Convert a count of seconds since 1980 to a time. |
| * |
| * PARAMS |
| * Seconds [I] Time to convert. |
| * Time [O] Destination for the converted time. |
| * |
| * RETURNS |
| * Nothing. |
| */ |
| void WINAPI RtlSecondsSince1980ToTime( DWORD Seconds, LARGE_INTEGER *Time ) |
| { |
| Time->QuadPart = Seconds * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1980; |
| } |
| |
| /****************************************************************************** |
| * RtlTimeToElapsedTimeFields [NTDLL.@] |
| * |
| * Convert a time to a count of elapsed seconds. |
| * |
| * PARAMS |
| * Time [I] Time to convert. |
| * TimeFields [O] Destination for the converted time. |
| * |
| * RETURNS |
| * Nothing. |
| */ |
| void WINAPI RtlTimeToElapsedTimeFields( const LARGE_INTEGER *Time, PTIME_FIELDS TimeFields ) |
| { |
| LONGLONG time; |
| INT rem; |
| |
| time = Time->QuadPart / TICKSPERSEC; |
| TimeFields->Milliseconds = (Time->QuadPart % TICKSPERSEC) / TICKSPERMSEC; |
| |
| /* time is now in seconds */ |
| TimeFields->Year = 0; |
| TimeFields->Month = 0; |
| TimeFields->Day = time / SECSPERDAY; |
| |
| /* rem is now the remaining seconds in the last day */ |
| rem = time % SECSPERDAY; |
| TimeFields->Second = rem % 60; |
| rem /= 60; |
| TimeFields->Minute = rem % 60; |
| TimeFields->Hour = rem / 60; |
| } |
| |
| /*********************************************************************** |
| * NtQuerySystemTime [NTDLL.@] |
| * ZwQuerySystemTime [NTDLL.@] |
| * |
| * Get the current system time. |
| * |
| * PARAMS |
| * Time [O] Destination for the current system time. |
| * |
| * RETURNS |
| * Success: STATUS_SUCCESS. |
| * Failure: An NTSTATUS error code indicating the problem. |
| */ |
| NTSTATUS WINAPI NtQuerySystemTime( PLARGE_INTEGER Time ) |
| { |
| struct timeval now; |
| |
| gettimeofday( &now, 0 ); |
| Time->QuadPart = now.tv_sec * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970; |
| Time->QuadPart += now.tv_usec * 10; |
| return STATUS_SUCCESS; |
| } |
| |
| /****************************************************************************** |
| * NtQueryPerformanceCounter [NTDLL.@] |
| */ |
| NTSTATUS WINAPI NtQueryPerformanceCounter( LARGE_INTEGER *counter, LARGE_INTEGER *frequency ) |
| { |
| __TRY |
| { |
| counter->QuadPart = monotonic_counter(); |
| if (frequency) frequency->QuadPart = TICKSPERSEC; |
| } |
| __EXCEPT_PAGE_FAULT |
| { |
| return STATUS_ACCESS_VIOLATION; |
| } |
| __ENDTRY |
| |
| return STATUS_SUCCESS; |
| } |
| |
| |
| /****************************************************************************** |
| * NtGetTickCount (NTDLL.@) |
| * ZwGetTickCount (NTDLL.@) |
| */ |
| ULONG WINAPI NtGetTickCount(void) |
| { |
| return monotonic_counter() / TICKSPERMSEC; |
| } |
| |
| /* calculate the mday of dst change date, so that for instance Sun 5 Oct 2007 |
| * (last Sunday in October of 2007) becomes Sun Oct 28 2007 |
| * |
| * Note: year, day and month must be in unix format. |
| */ |
| static int weekday_to_mday(int year, int day, int mon, int day_of_week) |
| { |
| struct tm date; |
| time_t tmp; |
| int wday, mday; |
| |
| /* find first day in the month matching week day of the date */ |
| memset(&date, 0, sizeof(date)); |
| date.tm_year = year; |
| date.tm_mon = mon; |
| date.tm_mday = -1; |
| date.tm_wday = -1; |
| do |
| { |
| date.tm_mday++; |
| tmp = mktime(&date); |
| } while (date.tm_wday != day_of_week || date.tm_mon != mon); |
| |
| mday = date.tm_mday; |
| |
| /* find number of week days in the month matching week day of the date */ |
| wday = 1; /* 1 - 1st, ...., 5 - last */ |
| while (wday < day) |
| { |
| struct tm *tm; |
| |
| date.tm_mday += 7; |
| tmp = mktime(&date); |
| tm = localtime(&tmp); |
| if (tm->tm_mon != mon) |
| break; |
| mday = tm->tm_mday; |
| wday++; |
| } |
| |
| return mday; |
| } |
| |
| static BOOL match_tz_date(const RTL_SYSTEM_TIME *st, const RTL_SYSTEM_TIME *reg_st) |
| { |
| WORD wDay; |
| |
| if (st->wMonth != reg_st->wMonth) return FALSE; |
| |
| if (!st->wMonth) return TRUE; /* no transition dates */ |
| |
| wDay = reg_st->wDay; |
| if (!reg_st->wYear) /* date in a day-of-week format */ |
| wDay = weekday_to_mday(st->wYear - 1900, reg_st->wDay, reg_st->wMonth - 1, reg_st->wDayOfWeek); |
| |
| if (st->wDay != wDay || |
| st->wHour != reg_st->wHour || |
| st->wMinute != reg_st->wMinute || |
| st->wSecond != reg_st->wSecond || |
| st->wMilliseconds != reg_st->wMilliseconds) return FALSE; |
| |
| return TRUE; |
| } |
| |
| static BOOL match_tz_info(const RTL_DYNAMIC_TIME_ZONE_INFORMATION *tzi, const RTL_DYNAMIC_TIME_ZONE_INFORMATION *reg_tzi) |
| { |
| if (tzi->Bias == reg_tzi->Bias && |
| match_tz_date(&tzi->StandardDate, ®_tzi->StandardDate) && |
| match_tz_date(&tzi->DaylightDate, ®_tzi->DaylightDate)) |
| return TRUE; |
| |
| return FALSE; |
| } |
| |
| static BOOL reg_query_value(HKEY hkey, LPCWSTR name, DWORD type, void *data, DWORD count) |
| { |
| UNICODE_STRING nameW; |
| char buf[256]; |
| KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buf; |
| |
| if (count > sizeof(buf) - sizeof(KEY_VALUE_PARTIAL_INFORMATION)) |
| return FALSE; |
| |
| RtlInitUnicodeString(&nameW, name); |
| |
| if (NtQueryValueKey(hkey, &nameW, KeyValuePartialInformation, |
| buf, sizeof(buf), &count)) |
| return FALSE; |
| |
| if (info->Type != type) return FALSE; |
| |
| memcpy(data, info->Data, info->DataLength); |
| return TRUE; |
| } |
| |
| static void find_reg_tz_info(RTL_DYNAMIC_TIME_ZONE_INFORMATION *tzi, int year) |
| { |
| static const WCHAR Time_ZonesW[] = { 'M','a','c','h','i','n','e','\\', |
| 'S','o','f','t','w','a','r','e','\\', |
| 'M','i','c','r','o','s','o','f','t','\\', |
| 'W','i','n','d','o','w','s',' ','N','T','\\', |
| 'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\', |
| 'T','i','m','e',' ','Z','o','n','e','s',0 }; |
| static const WCHAR Dynamic_DstW[] = { 'D','y','n','a','m','i','c',' ','D','S','T',0 }; |
| static const WCHAR fmtW[] = { '%','d',0 }; |
| HANDLE hkey; |
| ULONG idx; |
| OBJECT_ATTRIBUTES attr, attrDynamic; |
| UNICODE_STRING nameW, nameDynamicW; |
| WCHAR buf[128], yearW[16]; |
| |
| sprintfW(yearW, fmtW, year); |
| |
| attrDynamic.Length = sizeof(attrDynamic); |
| attrDynamic.RootDirectory = 0; /* will be replaced later */ |
| attrDynamic.ObjectName = &nameDynamicW; |
| attrDynamic.Attributes = 0; |
| attrDynamic.SecurityDescriptor = NULL; |
| attrDynamic.SecurityQualityOfService = NULL; |
| RtlInitUnicodeString(&nameDynamicW, Dynamic_DstW); |
| |
| attr.Length = sizeof(attr); |
| attr.RootDirectory = 0; |
| attr.ObjectName = &nameW; |
| attr.Attributes = 0; |
| attr.SecurityDescriptor = NULL; |
| attr.SecurityQualityOfService = NULL; |
| RtlInitUnicodeString(&nameW, Time_ZonesW); |
| if (NtOpenKey(&hkey, KEY_READ, &attr)) |
| { |
| WARN("Unable to open the time zones key\n"); |
| return; |
| } |
| |
| idx = 0; |
| nameW.Buffer = buf; |
| nameW.Length = sizeof(buf); |
| nameW.MaximumLength = sizeof(buf); |
| |
| while (!RtlpNtEnumerateSubKey(hkey, &nameW, idx++)) |
| { |
| static const WCHAR stdW[] = { 'S','t','d',0 }; |
| static const WCHAR dltW[] = { 'D','l','t',0 }; |
| static const WCHAR tziW[] = { 'T','Z','I',0 }; |
| RTL_DYNAMIC_TIME_ZONE_INFORMATION reg_tzi; |
| HANDLE hSubkey, hSubkeyDynamicDST; |
| BOOL is_dynamic = FALSE; |
| |
| struct tz_reg_data |
| { |
| LONG bias; |
| LONG std_bias; |
| LONG dlt_bias; |
| RTL_SYSTEM_TIME std_date; |
| RTL_SYSTEM_TIME dlt_date; |
| } tz_data; |
| |
| attr.Length = sizeof(attr); |
| attr.RootDirectory = hkey; |
| attr.ObjectName = &nameW; |
| attr.Attributes = 0; |
| attr.SecurityDescriptor = NULL; |
| attr.SecurityQualityOfService = NULL; |
| if (NtOpenKey(&hSubkey, KEY_READ, &attr)) |
| { |
| WARN("Unable to open subkey %s\n", debugstr_wn(nameW.Buffer, nameW.Length/sizeof(WCHAR))); |
| continue; |
| } |
| |
| #define get_value(hkey, name, type, data, len) \ |
| if (!reg_query_value(hkey, name, type, data, len)) \ |
| { \ |
| WARN("can't read data from %s\n", debugstr_w(name)); \ |
| NtClose(hkey); \ |
| continue; \ |
| } |
| |
| get_value(hSubkey, stdW, REG_SZ, reg_tzi.StandardName, sizeof(reg_tzi.StandardName)); |
| get_value(hSubkey, dltW, REG_SZ, reg_tzi.DaylightName, sizeof(reg_tzi.DaylightName)); |
| memcpy(reg_tzi.TimeZoneKeyName, nameW.Buffer, nameW.Length); |
| reg_tzi.TimeZoneKeyName[nameW.Length/sizeof(WCHAR)] = 0; |
| |
| /* Check for Dynamic DST entry first */ |
| attrDynamic.RootDirectory = hSubkey; |
| if (!NtOpenKey(&hSubkeyDynamicDST, KEY_READ, &attrDynamic)) |
| { |
| is_dynamic = reg_query_value(hSubkeyDynamicDST, yearW, REG_BINARY, &tz_data, sizeof(tz_data)); |
| NtClose(hSubkeyDynamicDST); |
| } |
| |
| if (!is_dynamic) |
| get_value(hSubkey, tziW, REG_BINARY, &tz_data, sizeof(tz_data)); |
| |
| #undef get_value |
| |
| reg_tzi.Bias = tz_data.bias; |
| reg_tzi.StandardBias = tz_data.std_bias; |
| reg_tzi.DaylightBias = tz_data.dlt_bias; |
| reg_tzi.StandardDate = tz_data.std_date; |
| reg_tzi.DaylightDate = tz_data.dlt_date; |
| |
| TRACE("%s: bias %d\n", debugstr_wn(nameW.Buffer, nameW.Length/sizeof(WCHAR)), reg_tzi.Bias); |
| TRACE("std (d/m/y): %u/%02u/%04u day of week %u %u:%02u:%02u.%03u bias %d\n", |
| reg_tzi.StandardDate.wDay, reg_tzi.StandardDate.wMonth, |
| reg_tzi.StandardDate.wYear, reg_tzi.StandardDate.wDayOfWeek, |
| reg_tzi.StandardDate.wHour, reg_tzi.StandardDate.wMinute, |
| reg_tzi.StandardDate.wSecond, reg_tzi.StandardDate.wMilliseconds, |
| reg_tzi.StandardBias); |
| TRACE("dst (d/m/y): %u/%02u/%04u day of week %u %u:%02u:%02u.%03u bias %d\n", |
| reg_tzi.DaylightDate.wDay, reg_tzi.DaylightDate.wMonth, |
| reg_tzi.DaylightDate.wYear, reg_tzi.DaylightDate.wDayOfWeek, |
| reg_tzi.DaylightDate.wHour, reg_tzi.DaylightDate.wMinute, |
| reg_tzi.DaylightDate.wSecond, reg_tzi.DaylightDate.wMilliseconds, |
| reg_tzi.DaylightBias); |
| |
| NtClose(hSubkey); |
| |
| if (match_tz_info(tzi, ®_tzi)) |
| { |
| *tzi = reg_tzi; |
| NtClose(hkey); |
| return; |
| } |
| |
| /* reset len */ |
| nameW.Length = sizeof(buf); |
| nameW.MaximumLength = sizeof(buf); |
| } |
| |
| NtClose(hkey); |
| |
| FIXME("Can't find matching timezone information in the registry for " |
| "bias %d, std (d/m/y): %u/%02u/%04u, dlt (d/m/y): %u/%02u/%04u\n", |
| tzi->Bias, |
| tzi->StandardDate.wDay, tzi->StandardDate.wMonth, tzi->StandardDate.wYear, |
| tzi->DaylightDate.wDay, tzi->DaylightDate.wMonth, tzi->DaylightDate.wYear); |
| } |
| |
| static time_t find_dst_change(unsigned long min, unsigned long max, int *is_dst) |
| { |
| time_t start; |
| struct tm *tm; |
| |
| start = min; |
| tm = localtime(&start); |
| *is_dst = !tm->tm_isdst; |
| TRACE("starting date isdst %d, %s", !*is_dst, ctime(&start)); |
| |
| while (min <= max) |
| { |
| time_t pos = (min + max) / 2; |
| tm = localtime(&pos); |
| |
| if (tm->tm_isdst != *is_dst) |
| min = pos + 1; |
| else |
| max = pos - 1; |
| } |
| return min; |
| } |
| |
| static int init_tz_info(RTL_DYNAMIC_TIME_ZONE_INFORMATION *tzi) |
| { |
| static RTL_DYNAMIC_TIME_ZONE_INFORMATION cached_tzi; |
| static int current_year = -1, current_bias = 65535; |
| struct tm *tm; |
| time_t year_start, year_end, tmp, dlt = 0, std = 0; |
| int is_dst, current_is_dst, bias; |
| |
| RtlEnterCriticalSection( &TIME_tz_section ); |
| |
| year_start = time(NULL); |
| tm = gmtime(&year_start); |
| bias = (LONG)(mktime(tm) - year_start) / 60; |
| |
| tm = localtime(&year_start); |
| current_is_dst = tm->tm_isdst; |
| if (current_year == tm->tm_year && current_bias == bias) |
| { |
| *tzi = cached_tzi; |
| RtlLeaveCriticalSection( &TIME_tz_section ); |
| return current_is_dst; |
| } |
| |
| memset(tzi, 0, sizeof(*tzi)); |
| |
| TRACE("tz data will be valid through year %d, bias %d\n", tm->tm_year + 1900, bias); |
| current_year = tm->tm_year; |
| current_bias = bias; |
| |
| tzi->Bias = bias; |
| |
| tm->tm_isdst = 0; |
| tm->tm_mday = 1; |
| tm->tm_mon = tm->tm_hour = tm->tm_min = tm->tm_sec = tm->tm_wday = tm->tm_yday = 0; |
| year_start = mktime(tm); |
| TRACE("year_start: %s", ctime(&year_start)); |
| |
| tm->tm_mday = tm->tm_wday = tm->tm_yday = 0; |
| tm->tm_mon = 12; |
| tm->tm_hour = 23; |
| tm->tm_min = tm->tm_sec = 59; |
| year_end = mktime(tm); |
| TRACE("year_end: %s", ctime(&year_end)); |
| |
| tmp = find_dst_change(year_start, year_end, &is_dst); |
| if (is_dst) |
| dlt = tmp; |
| else |
| std = tmp; |
| |
| tmp = find_dst_change(tmp, year_end, &is_dst); |
| if (is_dst) |
| dlt = tmp; |
| else |
| std = tmp; |
| |
| TRACE("std: %s", ctime(&std)); |
| TRACE("dlt: %s", ctime(&dlt)); |
| |
| if (dlt == std || !dlt || !std) |
| TRACE("there is no daylight saving rules in this time zone\n"); |
| else |
| { |
| tmp = dlt - tzi->Bias * 60; |
| tm = gmtime(&tmp); |
| TRACE("dlt gmtime: %s", asctime(tm)); |
| |
| tzi->DaylightBias = -60; |
| tzi->DaylightDate.wYear = tm->tm_year + 1900; |
| tzi->DaylightDate.wMonth = tm->tm_mon + 1; |
| tzi->DaylightDate.wDayOfWeek = tm->tm_wday; |
| tzi->DaylightDate.wDay = tm->tm_mday; |
| tzi->DaylightDate.wHour = tm->tm_hour; |
| tzi->DaylightDate.wMinute = tm->tm_min; |
| tzi->DaylightDate.wSecond = tm->tm_sec; |
| tzi->DaylightDate.wMilliseconds = 0; |
| |
| TRACE("daylight (d/m/y): %u/%02u/%04u day of week %u %u:%02u:%02u.%03u bias %d\n", |
| tzi->DaylightDate.wDay, tzi->DaylightDate.wMonth, |
| tzi->DaylightDate.wYear, tzi->DaylightDate.wDayOfWeek, |
| tzi->DaylightDate.wHour, tzi->DaylightDate.wMinute, |
| tzi->DaylightDate.wSecond, tzi->DaylightDate.wMilliseconds, |
| tzi->DaylightBias); |
| |
| tmp = std - tzi->Bias * 60 - tzi->DaylightBias * 60; |
| tm = gmtime(&tmp); |
| TRACE("std gmtime: %s", asctime(tm)); |
| |
| tzi->StandardBias = 0; |
| tzi->StandardDate.wYear = tm->tm_year + 1900; |
| tzi->StandardDate.wMonth = tm->tm_mon + 1; |
| tzi->StandardDate.wDayOfWeek = tm->tm_wday; |
| tzi->StandardDate.wDay = tm->tm_mday; |
| tzi->StandardDate.wHour = tm->tm_hour; |
| tzi->StandardDate.wMinute = tm->tm_min; |
| tzi->StandardDate.wSecond = tm->tm_sec; |
| tzi->StandardDate.wMilliseconds = 0; |
| |
| TRACE("standard (d/m/y): %u/%02u/%04u day of week %u %u:%02u:%02u.%03u bias %d\n", |
| tzi->StandardDate.wDay, tzi->StandardDate.wMonth, |
| tzi->StandardDate.wYear, tzi->StandardDate.wDayOfWeek, |
| tzi->StandardDate.wHour, tzi->StandardDate.wMinute, |
| tzi->StandardDate.wSecond, tzi->StandardDate.wMilliseconds, |
| tzi->StandardBias); |
| } |
| |
| find_reg_tz_info(tzi, current_year + 1900); |
| cached_tzi = *tzi; |
| |
| RtlLeaveCriticalSection( &TIME_tz_section ); |
| |
| return current_is_dst; |
| } |
| |
| /*********************************************************************** |
| * RtlQueryTimeZoneInformation [NTDLL.@] |
| * |
| * Get information about the current timezone. |
| * |
| * PARAMS |
| * tzinfo [O] Destination for the retrieved timezone info. |
| * |
| * RETURNS |
| * Success: STATUS_SUCCESS. |
| * Failure: An NTSTATUS error code indicating the problem. |
| */ |
| NTSTATUS WINAPI RtlQueryTimeZoneInformation(RTL_TIME_ZONE_INFORMATION *ret) |
| { |
| RTL_DYNAMIC_TIME_ZONE_INFORMATION tzinfo; |
| |
| init_tz_info( &tzinfo ); |
| memcpy( ret, &tzinfo, sizeof(*ret) ); |
| return STATUS_SUCCESS; |
| } |
| |
| /*********************************************************************** |
| * RtlQueryDynamicTimeZoneInformation [NTDLL.@] |
| * |
| * Get information about the current timezone. |
| * |
| * PARAMS |
| * tzinfo [O] Destination for the retrieved timezone info. |
| * |
| * RETURNS |
| * Success: STATUS_SUCCESS. |
| * Failure: An NTSTATUS error code indicating the problem. |
| */ |
| NTSTATUS WINAPI RtlQueryDynamicTimeZoneInformation(RTL_DYNAMIC_TIME_ZONE_INFORMATION *tzinfo) |
| { |
| init_tz_info( tzinfo ); |
| |
| return STATUS_SUCCESS; |
| } |
| |
| /*********************************************************************** |
| * RtlSetTimeZoneInformation [NTDLL.@] |
| * |
| * Set the current time zone information. |
| * |
| * PARAMS |
| * tzinfo [I] Timezone information to set. |
| * |
| * RETURNS |
| * Success: STATUS_SUCCESS. |
| * Failure: An NTSTATUS error code indicating the problem. |
| * |
| */ |
| NTSTATUS WINAPI RtlSetTimeZoneInformation( const RTL_TIME_ZONE_INFORMATION *tzinfo ) |
| { |
| return STATUS_PRIVILEGE_NOT_HELD; |
| } |
| |
| /*********************************************************************** |
| * NtSetSystemTime [NTDLL.@] |
| * ZwSetSystemTime [NTDLL.@] |
| * |
| * Set the system time. |
| * |
| * PARAMS |
| * NewTime [I] The time to set. |
| * OldTime [O] Optional destination for the previous system time. |
| * |
| * RETURNS |
| * Success: STATUS_SUCCESS. |
| * Failure: An NTSTATUS error code indicating the problem. |
| */ |
| NTSTATUS WINAPI NtSetSystemTime(const LARGE_INTEGER *NewTime, LARGE_INTEGER *OldTime) |
| { |
| struct timeval tv; |
| time_t tm_t; |
| DWORD sec, oldsec; |
| LARGE_INTEGER tm; |
| |
| /* Return the old time if necessary */ |
| if (!OldTime) OldTime = &tm; |
| |
| NtQuerySystemTime( OldTime ); |
| RtlTimeToSecondsSince1970( OldTime, &oldsec ); |
| |
| RtlTimeToSecondsSince1970( NewTime, &sec ); |
| |
| /* fake success if time didn't change */ |
| if (oldsec == sec) |
| return STATUS_SUCCESS; |
| |
| /* set the new time */ |
| tv.tv_sec = sec; |
| tv.tv_usec = 0; |
| |
| #ifdef HAVE_SETTIMEOFDAY |
| tm_t = sec; |
| if (!settimeofday(&tv, NULL)) /* 0 is OK, -1 is error */ |
| { |
| TRACE("OS time changed to %s\n", ctime(&tm_t)); |
| return STATUS_SUCCESS; |
| } |
| ERR("Cannot set time to %s, time adjustment %ld: %s\n", |
| ctime(&tm_t), (long)(sec-oldsec), strerror(errno)); |
| if (errno == EPERM) |
| return STATUS_PRIVILEGE_NOT_HELD; |
| else |
| return STATUS_INVALID_PARAMETER; |
| #else |
| tm_t = sec; |
| FIXME("setting time to %s not implemented for missing settimeofday\n", |
| ctime(&tm_t)); |
| return STATUS_NOT_IMPLEMENTED; |
| #endif |
| } |
| |
| /*********************************************************************** |
| * RtlQueryUnbiasedInterruptTime [NTDLL.@] |
| */ |
| NTSTATUS WINAPI RtlQueryUnbiasedInterruptTime(ULONGLONG *time) |
| { |
| *time = monotonic_counter(); |
| return STATUS_SUCCESS; |
| } |