/* * 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 * * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "config.h" #include "wine/port.h" #include #include #include #include #include #ifdef HAVE_SYS_TIME_H # include #endif #ifdef HAVE_UNISTD_H # include #endif #define NONAMELESSUNION #define NONAMELESSSTRUCT #include "windef.h" #include "winbase.h" #include "winreg.h" #include "winternl.h" #include "wine/unicode.h" #include "wine/debug.h" #include "ntdll_misc.h" WINE_DEFAULT_DEBUG_CHANNEL(ntdll); static CRITICAL_SECTION TIME_GetBias_section; static CRITICAL_SECTION_DEBUG critsect_debug = { 0, 0, &TIME_GetBias_section, { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList }, 0, 0, { 0, (DWORD)(__FILE__ ": TIME_GetBias_section") } }; static CRITICAL_SECTION TIME_GetBias_section = { &critsect_debug, -1, 0, 0, 0, 0 }; /* TimeZone registry key values */ static const WCHAR TZInformationKeyW[] = { '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}; static const WCHAR TZStandardStartW[] = { 'S','t','a','n','d','a','r','d','s','t','a','r','t', 0}; static const WCHAR TZDaylightStartW[] = { 'D','a','y','l','i','g','h','t','s','t','a','r','t', 0}; static const WCHAR TZDaylightBiasW[] = { 'D','a','y','l','i','g','h','t','B','i','a','s', 0}; static const WCHAR TZStandardBiasW[] = { 'S','t','a','n','d','a','r','d','B','i','a','s', 0}; static const WCHAR TZBiasW[] = {'B','i','a','s', 0}; static const WCHAR TZDaylightNameW[] = { 'D','a','y','l','i','g','h','t','N','a','m','e', 0}; static const WCHAR TZStandardNameW[] = { 'S','t','a','n','d','a','r','d','N','a','m','e', 0}; #define SETTIME_MAX_ADJUST 120 /* This structure is used to store strings that represent all of the time zones * in the world. (This is used to help GetTimeZoneInformation) */ struct tagTZ_INFO { const char *psTZFromUnix; WCHAR psTZWindows[32]; int bias; int dst; }; static const struct tagTZ_INFO TZ_INFO[] = { {"MHT", {'D','a','t','e','l','i','n','e',' ','S','t','a','n','d','a','r','d',' ', 'T','i','m','e','\0'}, -720, 0}, {"SST", {'S','a','m','o','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m', 'e','\0'}, 660, 0}, {"HST", {'H','a','w','a','i','i','a','n',' ','S','t','a','n','d','a','r','d',' ', 'T','i','m','e','\0'}, 600, 0}, {"AKDT", {'A','l','a','s','k','a','n',' ','S','t','a','n','d','a','r','d',' ','T', 'i','m','e','\0'}, 480, 1}, {"PST", {'P','a','c','i','f','i','c',' ','S','t','a','n','d','a','r','d',' ','T', 'i','m','e','\0'}, 480, 0}, {"PDT", {'P','a','c','i','f','i','c',' ','S','t','a','n','d','a','r','d',' ','T', 'i','m','e','\0'}, 420, 1}, {"MST", {'U','S',' ','M','o','u','n','t','a','i','n',' ','S','t','a','n','d','a', 'r','d',' ','T','i','m','e','\0'}, 420, 0}, {"MDT", {'M','o','u','n','t','a','i','n',' ','S','t','a','n','d','a','r','d',' ', 'T','i','m','e','\0'}, 360, 1}, {"CST", {'C','e','n','t','r','a','l',' ','A','m','e','r','i','c','a',' ','S','t', 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, 360, 0}, {"CDT", {'C','e','n','t','r','a','l',' ','S','t','a','n','d','a','r','d',' ','T', 'i','m','e','\0'}, 300, 1}, {"COT", {'S','A',' ','P','a','c','i','f','i','c',' ','S','t','a','n','d','a','r', 'd',' ','T','i','m','e','\0'}, 300, 0}, {"EDT", {'E','a','s','t','e','r','n',' ','S','t','a','n','d','a','r','d',' ','T', 'i','m','e','\0'}, 240, 1}, {"EST", {'U','S',' ','E','a','s','t','e','r','n',' ','S','t','a','n','d','a','r', 'd',' ','T','i','m','e','\0'}, 300, 0}, {"ADT", {'A','t','l','a','n','t','i','c',' ','S','t','a','n','d','a','r','d',' ', 'T','i','m','e','\0'}, 180, 1}, {"VET", {'S','A',' ','W','e','s','t','e','r','n',' ','S','t','a','n','d','a','r', 'd',' ','T','i','m','e','\0'}, 240, 0}, {"CLT", {'P','a','c','i','f','i','c',' ','S','A',' ','S','t','a','n','d','a','r', 'd',' ','T','i','m','e','\0'}, 240, 0}, {"NDT", {'N','e','w','f','o','u','n','d','l','a','n','d',' ','S','t','a','n','d', 'a','r','d',' ','T','i','m','e','\0'}, 150, 1}, {"BRT", {'B','r','a','z','i','l','i','a','n',' ','S','t','a','n','d','a','r','d', ' ','T','i','m','e','\0'}, 180, 0}, {"BRST", {'B','r','a','z','i','l','i','a','n',' ','S','u','m','m','e','r', ' ','T','i','m','e','\0'}, 120, 1}, {"ART", {'S','A',' ','E','a','s','t','e','r','n',' ','S','t','a','n','d','a','r', 'd',' ','T','i','m','e','\0'}, 180, 0}, {"WGST", {'G','r','e','e','n','l','a','n','d',' ','S','t','a','n','d','a','r','d', ' ','T','i','m','e','\0'}, 120, 1}, {"GST", {'M','i','d','-','A','t','l','a','n','t','i','c',' ','S','t','a','n','d', 'a','r','d',' ','T','i','m','e','\0'}, 120, 0}, {"AZOST", {'A','z','o','r','e','s',' ','S','t','a','n','d','a','r','d',' ','T','i', 'm','e','\0'}, 0, 1}, {"CVT", {'C','a','p','e',' ','V','e','r','d','e',' ','S','t','a','n','d','a','r', 'd',' ','T','i','m','e','\0'}, 60, 0}, {"WET", {'G','r','e','e','n','w','i','c','h',' ','S','t','a','n','d','a','r','d', ' ','T','i','m','e','\0'}, 0, 0}, {"BST", {'G','M','T',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'}, -60, 1}, {"GMT", {'G','M','T',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'}, 0, 0}, {"UTC", {'G','M','T',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'}, 0, 0}, {"CET", {'C','e','n','t','r','a','l',' ','E','u','r','o','p','e','a','n',' ', 'T','i','m','e','\0'}, -60, 0}, {"CEST", {'C','e','n','t','r','a','l',' ','E','u','r','o','p','e',' ','S','t','a', 'n','d','a','r','d',' ','T','i','m','e','\0'}, -120, 1}, {"MET", {'C','e','n','t','r','a','l',' ','E','u','r','o','p','e',' ','S','t','a', 'n','d','a','r','d',' ','T','i','m','e','\0'}, -60, 0}, {"MEST", {'C','e','n','t','r','a','l',' ','E','u','r','o','p','e',' ','D','a','y', 'l','i','g','h','t',' ','T','i','m','e','\0'}, -120, 1}, {"WAT", {'W','.',' ','C','e','n','t','r','a','l',' ','A','f','r','i','c','a',' ', 'S','t','a','n','d','a','r','d',' ','T','i','m','e','\0'}, -60, 0}, {"EEST", {'E','.',' ','E','u','r','o','p','e',' ','S','t','a','n','d','a','r','d', ' ','T','i','m','e','\0'}, -180, 1}, {"EET", {'E','g','y','p','t',' ','S','t','a','n','d','a','r','d',' ','T','i','m', 'e','\0'}, -120, 0}, {"CAT", {'C','e','n','t','r','a','l',' ','A','f','r','i','c','a','n',' ' ,'T','i','m','e','\0'}, -120, 0}, {"SAST", {'S','o','u','t','h',' ','A','f','r','i','c','a',' ','S','t','a','n','d', 'a','r','d',' ','T','i','m','e','\0'}, -120, 0}, {"IST", {'I','s','r','a','e','l',' ','S','t','a','n','d','a','r','d',' ','T','i', 'm','e','\0'}, -120, 0}, {"MSK", {'R','u','s','s','i','a','n',' ','S','t','a','n','d','a','r','d',' ','T', 'i','m','e','\0'}, -180, 0}, {"ADT", {'A','r','a','b','i','c',' ','S','t','a','n','d','a','r','d',' ','T','i', 'm','e','\0'}, -240, 1}, {"AST", {'A','r','a','b',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e', '\0'}, -180, 0}, {"MSD", {'R','u','s','s','i','a','n',' ','S','t','a','n','d','a','r','d',' ','T', 'i','m','e','\0'}, -240, 1}, {"EAT", {'E','.',' ','A','f','r','i','c','a',' ','S','t','a','n','d','a','r','d', ' ','T','i','m','e','\0'}, -180, 0}, {"IRST", {'I','r','a','n',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e', '\0'}, -270, 1}, {"GST", {'A','r','a','b','i','a','n',' ','S','t','a','n','d','a','r','d',' ','T', 'i','m','e','\0'}, -240, 0}, {"AZST", {'C','a','u','c','a','s','u','s',' ','S','t','a','n','d','a','r','d',' ', 'T','i','m','e','\0'}, -300, 1}, {"AFT", {'A','f','g','h','a','n','i','s','t','a','n',' ','S','t','a','n','d','a', 'r','d',' ','T','i','m','e','\0'}, -270, 0}, {"SAMT", {'S','a','m','a','r','a',' ','S','t','a','n','d','a','r','d',' ','T','i', 'm','e','\0'}, -270, 1}, {"YEKST", {'E','k','a','t','e','r','i','n','b','u','r','g',' ','S','t','a','n','d', 'a','r','d',' ','T','i','m','e','\0'}, -360, 1}, {"PKT", {'W','e','s','t',' ','A','s','i','a',' ','S','t','a','n','d','a','r','d', ' ','T','i','m','e','\0'}, -300, 0}, {"IST", {'I','n','d','i','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m', 'e','\0'}, -330, 0}, {"NPT", {'N','e','p','a','l',' ','S','t','a','n','d','a','r','d',' ','T','i','m', 'e','\0'}, -345, 0}, {"ALMST", {'N','.',' ','C','e','n','t','r','a','l',' ','A','s','i','a',' ','S','t', 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -420, 1}, {"BDT", {'C','e','n','t','r','a','l',' ','A','s','i','a',' ','S','t','a','n','d', 'a','r','d',' ','T','i','m','e','\0'}, -360, 0}, {"LKT", {'S','r','i',' ','L','a','n','k','a',' ','S','t','a','n','d','a','r','d', ' ','T','i','m','e','\0'}, -360, 0}, {"MMT", {'M','y','a','n','m','a','r',' ','S','t','a','n','d','a','r','d',' ','T', 'i','m','e','\0'}, -390, 0}, {"ICT", {'S','E',' ','A','s','i','a',' ','S','t','a','n','d','a','r','d',' ','T', 'i','m','e','\0'}, -420, 0}, {"KRAST", {'N','o','r','t','h',' ','A','s','i','a',' ','S','t','a','n','d','a','r', 'd',' ','T','i','m','e','\0'}, -480, 1}, {"CST", {'C','h','i','n','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m', 'e','\0'}, -480, 0}, {"IRKST", {'N','o','r','t','h',' ','A','s','i','a',' ','E','a','s','t',' ','S','t', 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -540, 1}, {"SGT", {'M','a','l','a','y',' ','P','e','n','i','n','s','u','l','a',' ','S','t', 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -480, 0}, {"WST", {'W','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a','n','d', 'a','r','d',' ','T','i','m','e','\0'}, -480, 0}, {"JST", {'T','o','k','y','o',' ','S','t','a','n','d','a','r','d',' ','T','i','m', 'e','\0'}, -540, 0}, {"KST", {'K','o','r','e','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m', 'e','\0'}, -540, 0}, {"YAKST", {'Y','a','k','u','t','s','k',' ','S','t','a','n','d','a','r','d',' ','T', 'i','m','e','\0'}, -600, 1}, {"CST", {'C','e','n','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a', 'n','d','a','r','d',' ','T','i','m','e','\0'}, -570, 0}, {"EST", {'E','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a','n','d', 'a','r','d',' ','T','i','m','e','\0'}, -600, 0}, {"EST", {'E','.',' ','A','u','s','t','r','a','l','i','a',' ','S','t','a','n','d', 'a','r','d',' ','T','i','m','e','\0'}, -660, 1}, {"GST", {'W','e','s','t',' ','P','a','c','i','f','i','c',' ','S','t','a','n','d', 'a','r','d',' ','T','i','m','e','\0'}, -600, 0}, {"VLAST", {'V','l','a','d','i','v','o','s','t','o','k',' ','S','t','a','n','d','a', 'r','d',' ','T','i','m','e','\0'}, -660, 1}, {"MAGST", {'C','e','n','t','r','a','l',' ','P','a','c','i','f','i','c',' ','S','t', 'a','n','d','a','r','d',' ','T','i','m','e','\0'}, -720, 1}, {"NZST", {'N','e','w',' ','Z','e','a','l','a','n','d',' ','S','t','a','n','d','a', 'r','d',' ','T','i','m','e','\0'}, -720, 0}, {"FJT", {'F','i','j','i',' ','S','t','a','n','d','a','r','d',' ','T','i','m','e', '\0'}, -720, 0}, {"TOT", {'T','o','n','g','a',' ','S','t','a','n','d','a','r','d',' ','T','i','m', 'e','\0'}, -780, 0}, {"NOVT", {'N','o','v','o','s','i','b','i','r','s','k',' ','S','t','a','n','d','a', 'r','d',' ','T','i','m','e','\0'}, -360, 1} }; #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 EPOCHYEAR 1601 #define DAYSPERNORMALYEAR 365 #define DAYSPERLEAPYEAR 366 #define MONSPERYEAR 12 #define DAYSPERQUADRICENTENNIUM (365 * 400 + 97) #define DAYSPERNORMALCENTURY (365 * 100 + 24) #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) /* max ticks that can be represented as Unix time */ #define TICKS_1601_TO_UNIX_MAX ((SECS_1601_TO_1970 + INT_MAX) * 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 int IsLeapYear(int Year) { return Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0) ? 1 : 0; } /*********************************************************************** * NTDLL_get_server_timeout * * Convert a NTDLL timeout into a timeval struct to send to the server. */ void NTDLL_get_server_timeout( abs_time_t *when, const LARGE_INTEGER *timeout ) { UINT remainder; if (!timeout) /* infinite timeout */ { when->sec = when->usec = 0; } else if (timeout->QuadPart <= 0) /* relative timeout */ { struct timeval tv; if (-timeout->QuadPart > (LONGLONG)INT_MAX * TICKSPERSEC) when->sec = when->usec = INT_MAX; else { ULONG sec = RtlEnlargedUnsignedDivide( -timeout->QuadPart, TICKSPERSEC, &remainder ); gettimeofday( &tv, 0 ); when->sec = tv.tv_sec + sec; if ((when->usec = tv.tv_usec + (remainder / 10)) >= 1000000) { when->usec -= 1000000; when->sec++; } if (when->sec < tv.tv_sec) /* overflow */ when->sec = when->usec = INT_MAX; } } else /* absolute time */ { if (timeout->QuadPart < TICKS_1601_TO_1970) when->sec = when->usec = 0; else if (timeout->QuadPart > TICKS_1601_TO_UNIX_MAX) when->sec = when->usec = INT_MAX; else { when->sec = RtlEnlargedUnsignedDivide( timeout->QuadPart - TICKS_1601_TO_1970, TICKSPERSEC, &remainder ); when->usec = remainder / 10; } } } /*********************************************************************** * NTDLL_from_server_timeout * * Convert a timeval struct from the server into an NTDLL timeout. */ void NTDLL_from_server_timeout( LARGE_INTEGER *timeout, const abs_time_t *when ) { timeout->QuadPart = when->sec * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970; timeout->QuadPart += when->usec * 10; } /****************************************************************************** * 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 int TIME_GetBias(time_t utc, int *pdaylight) { struct tm *ptm; static time_t last_utc; static int last_bias; static int last_daylight; int ret; RtlEnterCriticalSection( &TIME_GetBias_section ); if(utc == last_utc) { *pdaylight = last_daylight; ret = last_bias; } else { ptm = localtime(&utc); *pdaylight = last_daylight = ptm->tm_isdst; /* daylight for local timezone */ ptm = gmtime(&utc); ptm->tm_isdst = *pdaylight; /* use local daylight, not that of Greenwich */ last_utc = utc; ret = last_bias = (int)(utc-mktime(ptm)); } RtlLeaveCriticalSection( &TIME_GetBias_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) { time_t gmt; int bias, daylight; TRACE("(%p, %p)\n", LocalTime, SystemTime); gmt = time(NULL); bias = TIME_GetBias(gmt, &daylight); 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 ) { time_t gmt; int bias, daylight; TRACE("(%p, %p)\n", SystemTime, LocalTime); gmt = time(NULL); bias = TIME_GetBias(gmt, &daylight); 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 = ((ULONGLONG)Time->u.HighPart << 32) | Time->u.LowPart; tmp = RtlLargeIntegerDivide( tmp, TICKSPERSEC, NULL ); tmp -= SECS_1601_TO_1970; if (tmp > 0xffffffff) return FALSE; *Seconds = (DWORD)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 = ((ULONGLONG)Time->u.HighPart << 32) | Time->u.LowPart; tmp = RtlLargeIntegerDivide( tmp, TICKSPERSEC, NULL ); tmp -= SECS_1601_TO_1980; if (tmp > 0xffffffff) return FALSE; *Seconds = (DWORD)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 ) { ULONGLONG secs = Seconds * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970; Time->u.LowPart = (DWORD)secs; Time->u.HighPart = (DWORD)(secs >> 32); } /****************************************************************************** * 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 ) { ULONGLONG secs = Seconds * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1980; Time->u.LowPart = (DWORD)secs; Time->u.HighPart = (DWORD)(secs >> 32); } /****************************************************************************** * 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; UINT rem; time = RtlExtendedLargeIntegerDivide( Time->QuadPart, TICKSPERSEC, &rem ); TimeFields->Milliseconds = rem / TICKSPERMSEC; /* time is now in seconds */ TimeFields->Year = 0; TimeFields->Month = 0; TimeFields->Day = RtlExtendedLargeIntegerDivide( time, SECSPERDAY, &rem ); /* rem is now the remaining seconds in the last day */ 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; } /*********************************************************************** * TIME_GetTZAsStr [internal] * * Helper function that returns the given timezone as a string. * * PARAMS * utc [I] The current utc time. * bias [I] The bias of the current timezone. * dst [I] ?? * * RETURNS * Timezone name. * * NOTES: * This could be done with a hash table instead of merely iterating through a * table, however with the small amount of entries (60 or so) I didn't think * it was worth it. */ static const WCHAR* TIME_GetTZAsStr (time_t utc, int bias, int dst) { char psTZName[7]; struct tm *ptm = localtime(&utc); unsigned int i; if (!strftime (psTZName, 7, "%Z", ptm)) return (NULL); for (i=0; i<(sizeof(TZ_INFO) / sizeof(struct tagTZ_INFO)); i++) { if ( strcmp(TZ_INFO[i].psTZFromUnix, psTZName) == 0 && TZ_INFO[i].bias == bias && TZ_INFO[i].dst == dst ) return TZ_INFO[i].psTZWindows; } FIXME("Can't match system time zone name \"%s\", bias=%d and dst=%d " "to an entry in TZ_INFO. Please add appropriate entry to " "TZ_INFO and submit as patch to wine-patches\n",psTZName,bias,dst); return NULL; } /*** TIME_GetTimeZoneInfoFromReg: helper for GetTimeZoneInformation ***/ static int TIME_GetTimeZoneInfoFromReg(LPTIME_ZONE_INFORMATION tzinfo) { BYTE buf[90]; KEY_VALUE_PARTIAL_INFORMATION * KpInfo = (KEY_VALUE_PARTIAL_INFORMATION *) buf; HKEY hkey; DWORD size; OBJECT_ATTRIBUTES attr; UNICODE_STRING nameW; attr.Length = sizeof(attr); attr.RootDirectory = 0; attr.ObjectName = &nameW; attr.Attributes = 0; attr.SecurityDescriptor = NULL; attr.SecurityQualityOfService = NULL; RtlInitUnicodeString( &nameW, TZInformationKeyW); if (!NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr )) { #define GTZIFR_N( valkey, tofield) \ RtlInitUnicodeString( &nameW, valkey );\ if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, KpInfo,\ sizeof(buf), &size )) { \ if( size >= (sizeof((tofield)) + \ offsetof(KEY_VALUE_PARTIAL_INFORMATION,Data))); { \ memcpy(&(tofield), \ KpInfo->Data, sizeof(tofield)); \ } \ } #define GTZIFR_S( valkey, tofield) \ RtlInitUnicodeString( &nameW, valkey );\ if (!NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, KpInfo,\ sizeof(buf), &size )) { \ strncpyW( tofield, (WCHAR*) KpInfo->Data, \ sizeof( tofield) / sizeof(WCHAR) ); \ } GTZIFR_N( TZStandardStartW, tzinfo->StandardDate) GTZIFR_N( TZDaylightStartW, tzinfo->DaylightDate) GTZIFR_N( TZBiasW, tzinfo->Bias) GTZIFR_N( TZStandardBiasW, tzinfo->StandardBias) GTZIFR_N( TZDaylightBiasW, tzinfo->DaylightBias) GTZIFR_S( TZStandardNameW, tzinfo->StandardName) GTZIFR_S( TZDaylightNameW, tzinfo->DaylightName) #undef GTZIFR_N #undef GTZIFR_S NtClose( hkey ); return 1; } return 0; } /*********************************************************************** * 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(LPTIME_ZONE_INFORMATION tzinfo) { time_t gmt; int bias, daylight; const WCHAR *psTZ; memset(tzinfo, 0, sizeof(TIME_ZONE_INFORMATION)); if( !TIME_GetTimeZoneInfoFromReg(tzinfo)) { gmt = time(NULL); bias = TIME_GetBias(gmt, &daylight); tzinfo->Bias = -bias / 60; tzinfo->StandardBias = 0; tzinfo->DaylightBias = -60; tzinfo->StandardName[0]='\0'; tzinfo->DaylightName[0]='\0'; psTZ = TIME_GetTZAsStr (gmt, (-bias/60), daylight); if (psTZ) strcpyW( tzinfo->StandardName, psTZ ); } 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. * * BUGS * Uses the obsolete unix timezone structure and tz_dsttime member. */ NTSTATUS WINAPI RtlSetTimeZoneInformation( const TIME_ZONE_INFORMATION *tzinfo ) { #ifdef HAVE_SETTIMEOFDAY struct timezone tz; tz.tz_minuteswest = tzinfo->Bias; #ifdef DST_NONE tz.tz_dsttime = DST_NONE; #else tz.tz_dsttime = 0; #endif if(!settimeofday(NULL, &tz)) return STATUS_SUCCESS; #endif 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) { TIME_FIELDS tf; struct timeval tv; struct timezone tz; struct tm t; time_t sec, oldsec; int dst, bias; int err; /* Return the old time if necessary */ if(OldTime) NtQuerySystemTime(OldTime); RtlTimeToTimeFields(NewTime, &tf); /* call gettimeofday to get the current timezone */ gettimeofday(&tv, &tz); oldsec = tv.tv_sec; /* get delta local time from utc */ bias = TIME_GetBias(oldsec, &dst); /* get the number of seconds */ t.tm_sec = tf.Second; t.tm_min = tf.Minute; t.tm_hour = tf.Hour; t.tm_mday = tf.Day; t.tm_mon = tf.Month - 1; t.tm_year = tf.Year - 1900; t.tm_isdst = dst; sec = mktime (&t); /* correct for timezone and daylight */ sec += bias; /* set the new time */ tv.tv_sec = sec; tv.tv_usec = tf.Milliseconds * 1000; /* error and sanity check*/ if(sec == (time_t)-1 || abs((int)(sec-oldsec)) > SETTIME_MAX_ADJUST) { err = 2; } else { #ifdef HAVE_SETTIMEOFDAY err = settimeofday(&tv, NULL); /* 0 is OK, -1 is error */ if(err == 0) return STATUS_SUCCESS; #else err = 1; #endif } ERR("Cannot set time to %d/%d/%d %d:%d:%d Time adjustment %ld %s\n", tf.Year, tf.Month, tf.Day, tf.Hour, tf.Minute, tf.Second, (long)(sec-oldsec), err == -1 ? "No Permission" : sec == (time_t)-1 ? "" : "is too large." ); if(err == 2) return STATUS_INVALID_PARAMETER; else if(err == -1) return STATUS_PRIVILEGE_NOT_HELD; else return STATUS_NOT_IMPLEMENTED; }