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928 lines
28 KiB
C
928 lines
28 KiB
C
/*
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* Nt time functions.
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*
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* RtlTimeToTimeFields, RtlTimeFieldsToTime and defines are taken from ReactOS and
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* adapted to wine with special permissions of the author. This code is
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* Copyright 2002 Rex Jolliff (rex@lvcablemodem.com)
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*
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* Copyright 1999 Juergen Schmied
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* Copyright 2007 Dmitry Timoshkov
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <stdarg.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <limits.h>
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#include <time.h>
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#ifdef HAVE_SYS_TIME_H
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# include <sys/time.h>
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#endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#define NONAMELESSUNION
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#define NONAMELESSSTRUCT
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "windef.h"
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#include "winternl.h"
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#include "wine/unicode.h"
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#include "wine/debug.h"
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#include "ntdll_misc.h"
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WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
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static int init_tz_info(RTL_TIME_ZONE_INFORMATION *tzi);
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static RTL_CRITICAL_SECTION TIME_tz_section;
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static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
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{
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0, 0, &TIME_tz_section,
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{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
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0, 0, { (DWORD_PTR)(__FILE__ ": TIME_tz_section") }
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};
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static RTL_CRITICAL_SECTION TIME_tz_section = { &critsect_debug, -1, 0, 0, 0, 0 };
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#define TICKSPERSEC 10000000
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#define TICKSPERMSEC 10000
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#define SECSPERDAY 86400
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#define SECSPERHOUR 3600
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#define SECSPERMIN 60
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#define MINSPERHOUR 60
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#define HOURSPERDAY 24
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#define EPOCHWEEKDAY 1 /* Jan 1, 1601 was Monday */
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#define DAYSPERWEEK 7
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#define EPOCHYEAR 1601
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#define DAYSPERNORMALYEAR 365
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#define DAYSPERLEAPYEAR 366
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#define MONSPERYEAR 12
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#define DAYSPERQUADRICENTENNIUM (365 * 400 + 97)
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#define DAYSPERNORMALCENTURY (365 * 100 + 24)
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#define DAYSPERNORMALQUADRENNIUM (365 * 4 + 1)
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/* 1601 to 1970 is 369 years plus 89 leap days */
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#define SECS_1601_TO_1970 ((369 * 365 + 89) * (ULONGLONG)SECSPERDAY)
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#define TICKS_1601_TO_1970 (SECS_1601_TO_1970 * TICKSPERSEC)
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/* 1601 to 1980 is 379 years plus 91 leap days */
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#define SECS_1601_TO_1980 ((379 * 365 + 91) * (ULONGLONG)SECSPERDAY)
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#define TICKS_1601_TO_1980 (SECS_1601_TO_1980 * TICKSPERSEC)
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/* max ticks that can be represented as Unix time */
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#define TICKS_1601_TO_UNIX_MAX ((SECS_1601_TO_1970 + INT_MAX) * TICKSPERSEC)
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static const int MonthLengths[2][MONSPERYEAR] =
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{
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{ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
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{ 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
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};
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static inline int IsLeapYear(int Year)
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{
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return Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0) ? 1 : 0;
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}
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/******************************************************************************
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* RtlTimeToTimeFields [NTDLL.@]
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*
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* Convert a time into a TIME_FIELDS structure.
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*
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* PARAMS
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* liTime [I] Time to convert.
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* TimeFields [O] Destination for the converted time.
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*
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* RETURNS
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* Nothing.
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*/
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VOID WINAPI RtlTimeToTimeFields(
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const LARGE_INTEGER *liTime,
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PTIME_FIELDS TimeFields)
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{
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int SecondsInDay;
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long int cleaps, years, yearday, months;
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long int Days;
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LONGLONG Time;
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/* Extract millisecond from time and convert time into seconds */
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TimeFields->Milliseconds =
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(CSHORT) (( liTime->QuadPart % TICKSPERSEC) / TICKSPERMSEC);
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Time = liTime->QuadPart / TICKSPERSEC;
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/* The native version of RtlTimeToTimeFields does not take leap seconds
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* into account */
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/* Split the time into days and seconds within the day */
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Days = Time / SECSPERDAY;
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SecondsInDay = Time % SECSPERDAY;
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/* compute time of day */
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TimeFields->Hour = (CSHORT) (SecondsInDay / SECSPERHOUR);
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SecondsInDay = SecondsInDay % SECSPERHOUR;
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TimeFields->Minute = (CSHORT) (SecondsInDay / SECSPERMIN);
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TimeFields->Second = (CSHORT) (SecondsInDay % SECSPERMIN);
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/* compute day of week */
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TimeFields->Weekday = (CSHORT) ((EPOCHWEEKDAY + Days) % DAYSPERWEEK);
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/* compute year, month and day of month. */
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cleaps=( 3 * ((4 * Days + 1227) / DAYSPERQUADRICENTENNIUM) + 3 ) / 4;
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Days += 28188 + cleaps;
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years = (20 * Days - 2442) / (5 * DAYSPERNORMALQUADRENNIUM);
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yearday = Days - (years * DAYSPERNORMALQUADRENNIUM)/4;
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months = (64 * yearday) / 1959;
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/* the result is based on a year starting on March.
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* To convert take 12 from Januari and Februari and
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* increase the year by one. */
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if( months < 14 ) {
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TimeFields->Month = months - 1;
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TimeFields->Year = years + 1524;
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} else {
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TimeFields->Month = months - 13;
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TimeFields->Year = years + 1525;
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}
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/* calculation of day of month is based on the wonderful
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* sequence of INT( n * 30.6): it reproduces the
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* 31-30-31-30-31-31 month lengths exactly for small n's */
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TimeFields->Day = yearday - (1959 * months) / 64 ;
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return;
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}
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/******************************************************************************
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* RtlTimeFieldsToTime [NTDLL.@]
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*
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* Convert a TIME_FIELDS structure into a time.
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*
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* PARAMS
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* ftTimeFields [I] TIME_FIELDS structure to convert.
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* Time [O] Destination for the converted time.
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*
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* RETURNS
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* Success: TRUE.
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* Failure: FALSE.
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*/
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BOOLEAN WINAPI RtlTimeFieldsToTime(
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PTIME_FIELDS tfTimeFields,
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PLARGE_INTEGER Time)
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{
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int month, year, cleaps, day;
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/* FIXME: normalize the TIME_FIELDS structure here */
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/* No, native just returns 0 (error) if the fields are not */
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if( tfTimeFields->Milliseconds< 0 || tfTimeFields->Milliseconds > 999 ||
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tfTimeFields->Second < 0 || tfTimeFields->Second > 59 ||
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tfTimeFields->Minute < 0 || tfTimeFields->Minute > 59 ||
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tfTimeFields->Hour < 0 || tfTimeFields->Hour > 23 ||
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tfTimeFields->Month < 1 || tfTimeFields->Month > 12 ||
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tfTimeFields->Day < 1 ||
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tfTimeFields->Day > MonthLengths
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[ tfTimeFields->Month ==2 || IsLeapYear(tfTimeFields->Year)]
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[ tfTimeFields->Month - 1] ||
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tfTimeFields->Year < 1601 )
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return FALSE;
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/* now calculate a day count from the date
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* First start counting years from March. This way the leap days
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* are added at the end of the year, not somewhere in the middle.
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* Formula's become so much less complicate that way.
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* To convert: add 12 to the month numbers of Jan and Feb, and
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* take 1 from the year */
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if(tfTimeFields->Month < 3) {
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month = tfTimeFields->Month + 13;
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year = tfTimeFields->Year - 1;
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} else {
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month = tfTimeFields->Month + 1;
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year = tfTimeFields->Year;
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}
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cleaps = (3 * (year / 100) + 3) / 4; /* nr of "century leap years"*/
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day = (36525 * year) / 100 - cleaps + /* year * dayperyr, corrected */
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(1959 * month) / 64 + /* months * daypermonth */
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tfTimeFields->Day - /* day of the month */
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584817 ; /* zero that on 1601-01-01 */
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/* done */
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Time->QuadPart = (((((LONGLONG) day * HOURSPERDAY +
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tfTimeFields->Hour) * MINSPERHOUR +
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tfTimeFields->Minute) * SECSPERMIN +
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tfTimeFields->Second ) * 1000 +
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tfTimeFields->Milliseconds ) * TICKSPERMSEC;
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return TRUE;
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}
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/***********************************************************************
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* TIME_GetBias [internal]
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*
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* Helper function calculates delta local time from UTC.
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*
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* PARAMS
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* utc [I] The current utc time.
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* pdaylight [I] Local daylight.
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*
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* RETURNS
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* The bias for the current timezone.
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*/
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static LONG TIME_GetBias(void)
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{
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static time_t last_utc;
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static LONG last_bias;
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LONG ret;
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time_t utc;
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utc = time( NULL );
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RtlEnterCriticalSection( &TIME_tz_section );
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if (utc != last_utc)
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{
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RTL_TIME_ZONE_INFORMATION tzi;
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int is_dst = init_tz_info( &tzi );
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last_utc = utc;
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last_bias = tzi.Bias;
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last_bias += is_dst ? tzi.DaylightBias : tzi.StandardBias;
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last_bias *= SECSPERMIN;
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}
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ret = last_bias;
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RtlLeaveCriticalSection( &TIME_tz_section );
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return ret;
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}
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/******************************************************************************
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* RtlLocalTimeToSystemTime [NTDLL.@]
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*
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* Convert a local time into system time.
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*
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* PARAMS
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* LocalTime [I] Local time to convert.
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* SystemTime [O] Destination for the converted time.
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*
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* RETURNS
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* Success: STATUS_SUCCESS.
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* Failure: An NTSTATUS error code indicating the problem.
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*/
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NTSTATUS WINAPI RtlLocalTimeToSystemTime( const LARGE_INTEGER *LocalTime,
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PLARGE_INTEGER SystemTime)
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{
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LONG bias;
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TRACE("(%p, %p)\n", LocalTime, SystemTime);
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bias = TIME_GetBias();
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SystemTime->QuadPart = LocalTime->QuadPart + bias * (LONGLONG)TICKSPERSEC;
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return STATUS_SUCCESS;
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}
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/******************************************************************************
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* RtlSystemTimeToLocalTime [NTDLL.@]
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*
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* Convert a system time into a local time.
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*
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* PARAMS
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* SystemTime [I] System time to convert.
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* LocalTime [O] Destination for the converted time.
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*
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* RETURNS
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* Success: STATUS_SUCCESS.
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* Failure: An NTSTATUS error code indicating the problem.
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*/
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NTSTATUS WINAPI RtlSystemTimeToLocalTime( const LARGE_INTEGER *SystemTime,
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PLARGE_INTEGER LocalTime )
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{
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LONG bias;
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TRACE("(%p, %p)\n", SystemTime, LocalTime);
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bias = TIME_GetBias();
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LocalTime->QuadPart = SystemTime->QuadPart - bias * (LONGLONG)TICKSPERSEC;
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return STATUS_SUCCESS;
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}
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/******************************************************************************
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* RtlTimeToSecondsSince1970 [NTDLL.@]
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*
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* Convert a time into a count of seconds since 1970.
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*
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* PARAMS
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* Time [I] Time to convert.
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* Seconds [O] Destination for the converted time.
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*
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* RETURNS
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* Success: TRUE.
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* Failure: FALSE, if the resulting value will not fit in a DWORD.
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*/
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BOOLEAN WINAPI RtlTimeToSecondsSince1970( const LARGE_INTEGER *Time, LPDWORD Seconds )
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{
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ULONGLONG tmp = ((ULONGLONG)Time->u.HighPart << 32) | Time->u.LowPart;
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tmp = tmp / TICKSPERSEC - SECS_1601_TO_1970;
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if (tmp > 0xffffffff) return FALSE;
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*Seconds = (DWORD)tmp;
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return TRUE;
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}
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/******************************************************************************
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* RtlTimeToSecondsSince1980 [NTDLL.@]
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*
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* Convert a time into a count of seconds since 1980.
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*
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* PARAMS
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* Time [I] Time to convert.
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* Seconds [O] Destination for the converted time.
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*
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* RETURNS
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* Success: TRUE.
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* Failure: FALSE, if the resulting value will not fit in a DWORD.
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*/
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BOOLEAN WINAPI RtlTimeToSecondsSince1980( const LARGE_INTEGER *Time, LPDWORD Seconds )
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{
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ULONGLONG tmp = ((ULONGLONG)Time->u.HighPart << 32) | Time->u.LowPart;
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tmp = tmp / TICKSPERSEC - SECS_1601_TO_1980;
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if (tmp > 0xffffffff) return FALSE;
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*Seconds = (DWORD)tmp;
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return TRUE;
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}
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/******************************************************************************
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* RtlSecondsSince1970ToTime [NTDLL.@]
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*
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* Convert a count of seconds since 1970 to a time.
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*
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* PARAMS
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* Seconds [I] Time to convert.
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* Time [O] Destination for the converted time.
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*
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* RETURNS
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* Nothing.
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*/
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void WINAPI RtlSecondsSince1970ToTime( DWORD Seconds, LARGE_INTEGER *Time )
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{
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ULONGLONG secs = Seconds * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970;
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Time->u.LowPart = (DWORD)secs;
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Time->u.HighPart = (DWORD)(secs >> 32);
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}
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/******************************************************************************
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* RtlSecondsSince1980ToTime [NTDLL.@]
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*
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* Convert a count of seconds since 1980 to a time.
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*
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* PARAMS
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* Seconds [I] Time to convert.
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* Time [O] Destination for the converted time.
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*
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* RETURNS
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* Nothing.
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*/
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void WINAPI RtlSecondsSince1980ToTime( DWORD Seconds, LARGE_INTEGER *Time )
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{
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ULONGLONG secs = Seconds * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1980;
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Time->u.LowPart = (DWORD)secs;
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Time->u.HighPart = (DWORD)(secs >> 32);
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}
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/******************************************************************************
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* RtlTimeToElapsedTimeFields [NTDLL.@]
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*
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* Convert a time to a count of elapsed seconds.
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*
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* PARAMS
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* Time [I] Time to convert.
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* TimeFields [O] Destination for the converted time.
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*
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* RETURNS
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* Nothing.
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*/
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void WINAPI RtlTimeToElapsedTimeFields( const LARGE_INTEGER *Time, PTIME_FIELDS TimeFields )
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{
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LONGLONG time;
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INT rem;
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time = Time->QuadPart / TICKSPERSEC;
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TimeFields->Milliseconds = (Time->QuadPart % TICKSPERSEC) / TICKSPERMSEC;
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/* time is now in seconds */
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TimeFields->Year = 0;
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TimeFields->Month = 0;
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TimeFields->Day = time / SECSPERDAY;
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/* rem is now the remaining seconds in the last day */
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rem = time % SECSPERDAY;
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TimeFields->Second = rem % 60;
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rem /= 60;
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TimeFields->Minute = rem % 60;
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TimeFields->Hour = rem / 60;
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}
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/***********************************************************************
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* NtQuerySystemTime [NTDLL.@]
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* ZwQuerySystemTime [NTDLL.@]
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*
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* Get the current system time.
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*
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* PARAMS
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* Time [O] Destination for the current system time.
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*
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* RETURNS
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* Success: STATUS_SUCCESS.
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* Failure: An NTSTATUS error code indicating the problem.
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*/
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NTSTATUS WINAPI NtQuerySystemTime( PLARGE_INTEGER Time )
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{
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struct timeval now;
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gettimeofday( &now, 0 );
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Time->QuadPart = now.tv_sec * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970;
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Time->QuadPart += now.tv_usec * 10;
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return STATUS_SUCCESS;
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}
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|
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/******************************************************************************
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|
* NtQueryPerformanceCounter [NTDLL.@]
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*
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|
* Note: Windows uses a timer clocked at a multiple of 1193182 Hz. There is a
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* good number of applications that crash when the returned frequency is either
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* lower or higher than what Windows gives. Also too high counter values are
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* reported to give problems.
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*/
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NTSTATUS WINAPI NtQueryPerformanceCounter( PLARGE_INTEGER Counter, PLARGE_INTEGER Frequency )
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{
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LARGE_INTEGER now;
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if (!Counter) return STATUS_ACCESS_VIOLATION;
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|
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/* convert a counter that increments at a rate of 10 MHz
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* to one of 1.193182 MHz, with some care for arithmetic
|
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* overflow and good accuracy (21/176 = 0.11931818) */
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NtQuerySystemTime( &now );
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Counter->QuadPart = ((now.QuadPart - server_start_time) * 21) / 176;
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if (Frequency) Frequency->QuadPart = 1193182;
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return STATUS_SUCCESS;
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}
|
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|
|
|
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/******************************************************************************
|
|
* NtGetTickCount (NTDLL.@)
|
|
* ZwGetTickCount (NTDLL.@)
|
|
*/
|
|
ULONG WINAPI NtGetTickCount(void)
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{
|
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LARGE_INTEGER now;
|
|
|
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NtQuerySystemTime( &now );
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return (now.QuadPart - server_start_time) / 10000;
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}
|
|
|
|
/* calculate the mday of dst change date, so that for instance Sun 5 Oct 2007
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|
* (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_TIME_ZONE_INFORMATION *tzi, const RTL_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_TIME_ZONE_INFORMATION *tzi)
|
|
{
|
|
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 };
|
|
HANDLE hkey;
|
|
ULONG idx;
|
|
OBJECT_ATTRIBUTES attr;
|
|
UNICODE_STRING nameW;
|
|
WCHAR buf[128];
|
|
|
|
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_TIME_ZONE_INFORMATION reg_tzi;
|
|
HANDLE hSubkey;
|
|
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));
|
|
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_TIME_ZONE_INFORMATION *tzi)
|
|
{
|
|
static RTL_TIME_ZONE_INFORMATION cached_tzi;
|
|
static int current_year = -1;
|
|
struct tm *tm;
|
|
time_t year_start, year_end, tmp, dlt = 0, std = 0;
|
|
int is_dst, current_is_dst;
|
|
|
|
RtlEnterCriticalSection( &TIME_tz_section );
|
|
|
|
year_start = time(NULL);
|
|
tm = localtime(&year_start);
|
|
|
|
current_is_dst = tm->tm_isdst;
|
|
if (current_year == tm->tm_year)
|
|
{
|
|
*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\n", tm->tm_year + 1900);
|
|
current_year = tm->tm_year;
|
|
|
|
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));
|
|
|
|
tm = gmtime(&year_start);
|
|
tzi->Bias = (LONG)(mktime(tm) - year_start) / 60;
|
|
TRACE("bias: %d\n", tzi->Bias);
|
|
|
|
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);
|
|
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 *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 );
|
|
|
|
/* set the new time */
|
|
tv.tv_sec = sec;
|
|
tv.tv_usec = 0;
|
|
|
|
#ifdef HAVE_SETTIMEOFDAY
|
|
if (!settimeofday(&tv, NULL)) /* 0 is OK, -1 is error */
|
|
return STATUS_SUCCESS;
|
|
tm_t = sec;
|
|
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
|
|
}
|