dlls/kernel32/time.c

   1 /*
   2  * Win32 kernel time functions
   3  *
   4  * Copyright 1995 Martin von Loewis and Cameron Heide
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <string.h>
  24 #ifdef HAVE_UNISTD_H
  25 # include <unistd.h>
  26 #endif
  27 #include <stdarg.h>
  28 #include <stdlib.h>
  29 #include <time.h>
  30 #ifdef HAVE_SYS_TIME_H
  31 # include <sys/time.h>
  32 #endif
  33 #ifdef HAVE_SYS_TIMES_H
  34 # include <sys/times.h>
  35 #endif
  36 #ifdef HAVE_SYS_LIMITS_H
  37 #include <sys/limits.h>
  38 #elif defined(HAVE_MACHINE_LIMITS_H)
  39 #include <machine/limits.h>
  40 #endif
  41
  42 #define NONAMELESSUNION
  43 #define NONAMELESSSTRUCT
  44 #include "ntstatus.h"
  45 #define WIN32_NO_STATUS
  46 #include "windef.h"
  47 #include "winbase.h"
  48 #include "winternl.h"
  49 #include "kernel_private.h"
  50 #include "wine/unicode.h"
  51 #include "wine/debug.h"
  52
  53 WINE_DEFAULT_DEBUG_CHANNEL(time);
  54
  55 #define CALINFO_MAX_YEAR 2029
  56
  57 #define LL2FILETIME( ll, pft )\
  58     (pft)->dwLowDateTime = (UINT)(ll); \
  59     (pft)->dwHighDateTime = (UINT)((ll) >> 32);
  60 #define FILETIME2LL( pft, ll) \
  61     ll = (((LONGLONG)((pft)->dwHighDateTime))<<32) + (pft)-> dwLowDateTime ;
  62
  63
  64 static const int MonthLengths[2][12] =
  65 {
  66         { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
  67         { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
  68 };
  69
  70 static inline BOOL IsLeapYear(int Year)
  71 {
  72     return Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0);
  73 }
  74
  75 /***********************************************************************
  76  *  TIME_DayLightCompareDate
  77  *
  78  * Compares two dates without looking at the year.
  79  *
  80  * PARAMS
  81  *   date        [in] The local time to compare.
  82  *   compareDate [in] The daylight savings begin or end date.
  83  *
  84  * RETURNS
  85  *
  86  *  -1 if date < compareDate
  87  *   0 if date == compareDate
  88  *   1 if date > compareDate
  89  *  -2 if an error occurs
  90  */
  91 static int TIME_DayLightCompareDate( const SYSTEMTIME *date,
  92     const SYSTEMTIME *compareDate )
  93 {
  94     int limit_day, dayinsecs;
  95
  96     if (date->wMonth < compareDate->wMonth)
  97         return -1; /* We are in a month before the date limit. */
  98
  99     if (date->wMonth > compareDate->wMonth)
 100         return 1; /* We are in a month after the date limit. */
 101
 102     /* if year is 0 then date is in day-of-week format, otherwise
 103      * it's absolute date.
 104      */
 105     if (compareDate->wYear == 0)
 106     {
 107         WORD First;
 108         /* compareDate->wDay is interpreted as number of the week in the month
 109          * 5 means: the last week in the month */
 110         int weekofmonth = compareDate->wDay;
 111           /* calculate the day of the first DayOfWeek in the month */
 112         First = ( 6 + compareDate->wDayOfWeek - date->wDayOfWeek + date->wDay
 113                ) % 7 + 1;
 114         limit_day = First + 7 * (weekofmonth - 1);
 115         /* check needed for the 5th weekday of the month */
 116         if(limit_day > MonthLengths[date->wMonth==2 && IsLeapYear(date->wYear)]
 117                 [date->wMonth - 1])
 118             limit_day -= 7;
 119     }
 120     else
 121     {
 122        limit_day = compareDate->wDay;
 123     }
 124
 125     /* convert to seconds */
 126     limit_day = ((limit_day * 24  + compareDate->wHour) * 60 +
 127             compareDate->wMinute ) * 60;
 128     dayinsecs = ((date->wDay * 24  + date->wHour) * 60 +
 129             date->wMinute ) * 60 + date->wSecond;
 130     /* and compare */
 131     return dayinsecs < limit_day ? -1 :
 132            dayinsecs > limit_day ? 1 :
 133            0;   /* date is equal to the date limit. */
 134 }
 135
 136 /***********************************************************************
 137  *  TIME_CompTimeZoneID
 138  *
 139  *  Computes the local time bias for a given time and time zone.
 140  *
 141  *  PARAMS
 142  *      pTZinfo     [in] The time zone data.
 143  *      lpFileTime  [in] The system or local time.
 144  *      islocal     [in] it is local time.
 145  *
 146  *  RETURNS
 147  *      TIME_ZONE_ID_INVALID    An error occurred
 148  *      TIME_ZONE_ID_UNKNOWN    There are no transition time known
 149  *      TIME_ZONE_ID_STANDARD   Current time is standard time
 150  *      TIME_ZONE_ID_DAYLIGHT   Current time is daylight savings time
 151  */
 152 static DWORD TIME_CompTimeZoneID ( const TIME_ZONE_INFORMATION *pTZinfo,
 153     FILETIME *lpFileTime, BOOL islocal )
 154 {
 155     int ret, year;
 156     BOOL beforeStandardDate, afterDaylightDate;
 157     DWORD retval = TIME_ZONE_ID_INVALID;
 158     LONGLONG llTime = 0; /* initialized to prevent gcc complaining */
 159     SYSTEMTIME SysTime;
 160     FILETIME ftTemp;
 161
 162     if (pTZinfo->DaylightDate.wMonth != 0)
 163     {
 164         /* if year is 0 then date is in day-of-week format, otherwise
 165          * it's absolute date.
 166          */
 167         if (pTZinfo->StandardDate.wMonth == 0 ||
 168             (pTZinfo->StandardDate.wYear == 0 &&
 169             (pTZinfo->StandardDate.wDay<1 ||
 170             pTZinfo->StandardDate.wDay>5 ||
 171             pTZinfo->DaylightDate.wDay<1 ||
 172             pTZinfo->DaylightDate.wDay>5)))
 173         {
 174             SetLastError(ERROR_INVALID_PARAMETER);
 175             return TIME_ZONE_ID_INVALID;
 176         }
 177
 178         if (!islocal) {
 179             FILETIME2LL( lpFileTime, llTime );
 180             llTime -= pTZinfo->Bias * (LONGLONG)600000000;
 181             LL2FILETIME( llTime, &ftTemp)
 182             lpFileTime = &ftTemp;
 183         }
 184
 185         FileTimeToSystemTime(lpFileTime, &SysTime);
 186         year = SysTime.wYear;
 187
 188         if (!islocal) {
 189             llTime -= pTZinfo->DaylightBias * (LONGLONG)600000000;
 190             LL2FILETIME( llTime, &ftTemp)
 191             FileTimeToSystemTime(lpFileTime, &SysTime);
 192         }
 193
 194         /* check for daylight savings */
 195         if(year == SysTime.wYear) {
 196             ret = TIME_DayLightCompareDate( &SysTime, &pTZinfo->StandardDate);
 197             if (ret == -2)
 198                 return TIME_ZONE_ID_INVALID;
 199
 200             beforeStandardDate = ret < 0;
 201         } else
 202             beforeStandardDate = SysTime.wYear < year;
 203
 204         if (!islocal) {
 205             llTime -= ( pTZinfo->StandardBias - pTZinfo->DaylightBias )
 206                 * (LONGLONG)600000000;
 207             LL2FILETIME( llTime, &ftTemp)
 208             FileTimeToSystemTime(lpFileTime, &SysTime);
 209         }
 210
 211         if(year == SysTime.wYear) {
 212             ret = TIME_DayLightCompareDate( &SysTime, &pTZinfo->DaylightDate);
 213             if (ret == -2)
 214                 return TIME_ZONE_ID_INVALID;
 215
 216             afterDaylightDate = ret >= 0;
 217         } else
 218             afterDaylightDate = SysTime.wYear > year;
 219
 220         retval = TIME_ZONE_ID_STANDARD;
 221         if( pTZinfo->DaylightDate.wMonth <  pTZinfo->StandardDate.wMonth ) {
 222             /* Northern hemisphere */
 223             if( beforeStandardDate && afterDaylightDate )
 224                 retval = TIME_ZONE_ID_DAYLIGHT;
 225         } else    /* Down south */
 226             if( beforeStandardDate || afterDaylightDate )
 227             retval = TIME_ZONE_ID_DAYLIGHT;
 228     } else
 229         /* No transition date */
 230         retval = TIME_ZONE_ID_UNKNOWN;
 231
 232     return retval;
 233 }
 234
 235 /***********************************************************************
 236  *  TIME_TimeZoneID
 237  *
 238  *  Calculates whether daylight savings is on now.
 239  *
 240  *  PARAMS
 241  *      pTzi [in] Timezone info.
 242  *
 243  *  RETURNS
 244  *      TIME_ZONE_ID_INVALID    An error occurred
 245  *      TIME_ZONE_ID_UNKNOWN    There are no transition time known
 246  *      TIME_ZONE_ID_STANDARD   Current time is standard time
 247  *      TIME_ZONE_ID_DAYLIGHT   Current time is daylight savings time
 248  */
 249 static DWORD TIME_ZoneID( const TIME_ZONE_INFORMATION *pTzi )
 250 {
 251     FILETIME ftTime;
 252     GetSystemTimeAsFileTime( &ftTime);
 253     return TIME_CompTimeZoneID( pTzi, &ftTime, FALSE);
 254 }
 255
 256 /***********************************************************************
 257  *  TIME_GetTimezoneBias
 258  *
 259  *  Calculates the local time bias for a given time zone.
 260  *
 261  * PARAMS
 262  *  pTZinfo    [in]  The time zone data.
 263  *  lpFileTime [in]  The system or local time.
 264  *  islocal    [in]  It is local time.
 265  *  pBias      [out] The calculated bias in minutes.
 266  *
 267  * RETURNS
 268  *  TRUE when the time zone bias was calculated.
 269  */
 270 static BOOL TIME_GetTimezoneBias( const TIME_ZONE_INFORMATION *pTZinfo,
 271     FILETIME *lpFileTime, BOOL islocal, LONG *pBias )
 272 {
 273     LONG bias = pTZinfo->Bias;
 274     DWORD tzid = TIME_CompTimeZoneID( pTZinfo, lpFileTime, islocal);
 275
 276     if( tzid == TIME_ZONE_ID_INVALID)
 277         return FALSE;
 278     if (tzid == TIME_ZONE_ID_DAYLIGHT)
 279         bias += pTZinfo->DaylightBias;
 280     else if (tzid == TIME_ZONE_ID_STANDARD)
 281         bias += pTZinfo->StandardBias;
 282     *pBias = bias;
 283     return TRUE;
 284 }
 285
 286
 287 /***********************************************************************
 288  *              SetLocalTime            (KERNEL32.@)
 289  *
 290  *  Set the local time using current time zone and daylight
 291  *  savings settings.
 292  *
 293  * PARAMS
 294  *  systime [in] The desired local time.
 295  *
 296  * RETURNS
 297  *  Success: TRUE. The time was set.
 298  *  Failure: FALSE, if the time was invalid or caller does not have
 299  *           permission to change the time.
 300  */
 301 BOOL WINAPI SetLocalTime( const SYSTEMTIME *systime )
 302 {
 303     FILETIME ft;
 304     LARGE_INTEGER st, st2;
 305     NTSTATUS status;
 306
 307     if( !SystemTimeToFileTime( systime, &ft ))
 308         return FALSE;
 309     st.u.LowPart = ft.dwLowDateTime;
 310     st.u.HighPart = ft.dwHighDateTime;
 311     RtlLocalTimeToSystemTime( &st, &st2 );
 312
 313     if ((status = NtSetSystemTime(&st2, NULL)))
 314         SetLastError( RtlNtStatusToDosError(status) );
 315     return !status;
 316 }
 317
 318
 319 /***********************************************************************
 320  *           GetSystemTimeAdjustment     (KERNEL32.@)
 321  *
 322  *  Get the period between clock interrupts and the amount the clock
 323  *  is adjusted each interrupt so as to keep it in sync with an external source.
 324  *
 325  * PARAMS
 326  *  lpTimeAdjustment [out] The clock adjustment per interrupt in 100's of nanoseconds.
 327  *  lpTimeIncrement  [out] The time between clock interrupts in 100's of nanoseconds.
 328  *  lpTimeAdjustmentDisabled [out] The clock synchronisation has been disabled.
 329  *
 330  * RETURNS
 331  *  TRUE.
 332  *
 333  * BUGS
 334  *  Only the special case of disabled time adjustments is supported.
 335  */
 336 BOOL WINAPI GetSystemTimeAdjustment( PDWORD lpTimeAdjustment, PDWORD lpTimeIncrement,
 337     PBOOL  lpTimeAdjustmentDisabled )
 338 {
 339     *lpTimeAdjustment = 0;
 340     *lpTimeIncrement = 10000000 / sysconf(_SC_CLK_TCK);
 341     *lpTimeAdjustmentDisabled = TRUE;
 342     return TRUE;
 343 }
 344
 345
 346 /***********************************************************************
 347  *              SetSystemTime            (KERNEL32.@)
 348  *
 349  *  Set the system time in utc.
 350  *
 351  * PARAMS
 352  *  systime [in] The desired system time.
 353  *
 354  * RETURNS
 355  *  Success: TRUE. The time was set.
 356  *  Failure: FALSE, if the time was invalid or caller does not have
 357  *           permission to change the time.
 358  */
 359 BOOL WINAPI SetSystemTime( const SYSTEMTIME *systime )
 360 {
 361     FILETIME ft;
 362     LARGE_INTEGER t;
 363     NTSTATUS status;
 364
 365     if( !SystemTimeToFileTime( systime, &ft ))
 366         return FALSE;
 367     t.u.LowPart = ft.dwLowDateTime;
 368     t.u.HighPart = ft.dwHighDateTime;
 369     if ((status = NtSetSystemTime(&t, NULL)))
 370         SetLastError( RtlNtStatusToDosError(status) );
 371     return !status;
 372 }
 373
 374 /***********************************************************************
 375  *              SetSystemTimeAdjustment  (KERNEL32.@)
 376  *
 377  *  Enables or disables the timing adjustments to the system's clock.
 378  *
 379  * PARAMS
 380  *  dwTimeAdjustment        [in] Number of units to add per clock interrupt.
 381  *  bTimeAdjustmentDisabled [in] Adjustment mode.
 382  *
 383  * RETURNS
 384  *  Success: TRUE.
 385  *  Failure: FALSE.
 386  */
 387 BOOL WINAPI SetSystemTimeAdjustment( DWORD dwTimeAdjustment, BOOL bTimeAdjustmentDisabled )
 388 {
 389     /* Fake function for now... */
 390     FIXME("(%08x,%d): stub !\n", dwTimeAdjustment, bTimeAdjustmentDisabled);
 391     return TRUE;
 392 }
 393
 394 /***********************************************************************
 395  *              GetTimeZoneInformation  (KERNEL32.@)
 396  *
 397  *  Get information about the current local time zone.
 398  *
 399  * PARAMS
 400  *  tzinfo [out] Destination for time zone information.
 401  *
 402  * RETURNS
 403  *  TIME_ZONE_ID_INVALID    An error occurred
 404  *  TIME_ZONE_ID_UNKNOWN    There are no transition time known
 405  *  TIME_ZONE_ID_STANDARD   Current time is standard time
 406  *  TIME_ZONE_ID_DAYLIGHT   Current time is daylight savings time
 407  */
 408 DWORD WINAPI GetTimeZoneInformation( LPTIME_ZONE_INFORMATION tzinfo )
 409 {
 410     NTSTATUS status;
 411
 412     status = RtlQueryTimeZoneInformation( (RTL_TIME_ZONE_INFORMATION*)tzinfo );
 413     if ( status != STATUS_SUCCESS )
 414     {
 415         SetLastError( RtlNtStatusToDosError(status) );
 416         return TIME_ZONE_ID_INVALID;
 417     }
 418     return TIME_ZoneID( tzinfo );
 419 }
 420
 421 /***********************************************************************
 422  *              SetTimeZoneInformation  (KERNEL32.@)
 423  *
 424  *  Change the settings of the current local time zone.
 425  *
 426  * PARAMS
 427  *  tzinfo [in] The new time zone.
 428  *
 429  * RETURNS
 430  *  Success: TRUE. The time zone was updated with the settings from tzinfo.
 431  *  Failure: FALSE.
 432  */
 433 BOOL WINAPI SetTimeZoneInformation( const TIME_ZONE_INFORMATION *tzinfo )
 434 {
 435     NTSTATUS status;
 436     status = RtlSetTimeZoneInformation( (const RTL_TIME_ZONE_INFORMATION *)tzinfo );
 437     if ( status != STATUS_SUCCESS )
 438         SetLastError( RtlNtStatusToDosError(status) );
 439     return !status;
 440 }
 441
 442 /***********************************************************************
 443  *              SystemTimeToTzSpecificLocalTime  (KERNEL32.@)
 444  *
 445  *  Convert a utc system time to a local time in a given time zone.
 446  *
 447  * PARAMS
 448  *  lpTimeZoneInformation [in]  The desired time zone.
 449  *  lpUniversalTime       [in]  The utc time to base local time on.
 450  *  lpLocalTime           [out] The local time in the time zone.
 451  *
 452  * RETURNS
 453  *  Success: TRUE. lpLocalTime contains the converted time
 454  *  Failure: FALSE.
 455  */
 456
 457 BOOL WINAPI SystemTimeToTzSpecificLocalTime(
 458     const TIME_ZONE_INFORMATION *lpTimeZoneInformation,
 459     const SYSTEMTIME *lpUniversalTime, LPSYSTEMTIME lpLocalTime )
 460 {
 461     FILETIME ft;
 462     LONG lBias;
 463     LONGLONG llTime;
 464     TIME_ZONE_INFORMATION tzinfo;
 465
 466     if (lpTimeZoneInformation != NULL)
 467     {
 468         tzinfo = *lpTimeZoneInformation;
 469     }
 470     else
 471     {
 472         if (GetTimeZoneInformation(&tzinfo) == TIME_ZONE_ID_INVALID)
 473             return FALSE;
 474     }
 475
 476     if (!SystemTimeToFileTime(lpUniversalTime, &ft))
 477         return FALSE;
 478     FILETIME2LL( &ft, llTime)
 479     if (!TIME_GetTimezoneBias(&tzinfo, &ft, FALSE, &lBias))
 480         return FALSE;
 481     /* convert minutes to 100-nanoseconds-ticks */
 482     llTime -= (LONGLONG)lBias * 600000000;
 483     LL2FILETIME( llTime, &ft)
 484
 485     return FileTimeToSystemTime(&ft, lpLocalTime);
 486 }
 487
 488
 489 /***********************************************************************
 490  *              TzSpecificLocalTimeToSystemTime  (KERNEL32.@)
 491  *
 492  *  Converts a local time to a time in utc.
 493  *
 494  * PARAMS
 495  *  lpTimeZoneInformation [in]  The desired time zone.
 496  *  lpLocalTime           [in]  The local time.
 497  *  lpUniversalTime       [out] The calculated utc time.
 498  *
 499  * RETURNS
 500  *  Success: TRUE. lpUniversalTime contains the converted time.
 501  *  Failure: FALSE.
 502  */
 503 BOOL WINAPI TzSpecificLocalTimeToSystemTime(
 504     const TIME_ZONE_INFORMATION *lpTimeZoneInformation,
 505     const SYSTEMTIME *lpLocalTime, LPSYSTEMTIME lpUniversalTime)
 506 {
 507     FILETIME ft;
 508     LONG lBias;
 509     LONGLONG t;
 510     TIME_ZONE_INFORMATION tzinfo;
 511
 512     if (lpTimeZoneInformation != NULL)
 513     {
 514         tzinfo = *lpTimeZoneInformation;
 515     }
 516     else
 517     {
 518         if (GetTimeZoneInformation(&tzinfo) == TIME_ZONE_ID_INVALID)
 519             return FALSE;
 520     }
 521
 522     if (!SystemTimeToFileTime(lpLocalTime, &ft))
 523         return FALSE;
 524     FILETIME2LL( &ft, t)
 525     if (!TIME_GetTimezoneBias(&tzinfo, &ft, TRUE, &lBias))
 526         return FALSE;
 527     /* convert minutes to 100-nanoseconds-ticks */
 528     t += (LONGLONG)lBias * 600000000;
 529     LL2FILETIME( t, &ft)
 530     return FileTimeToSystemTime(&ft, lpUniversalTime);
 531 }
 532
 533
 534 /***********************************************************************
 535  *              GetSystemTimeAsFileTime  (KERNEL32.@)
 536  *
 537  *  Get the current time in utc format.
 538  *
 539  *  RETURNS
 540  *   Nothing.
 541  */
 542 VOID WINAPI GetSystemTimeAsFileTime(
 543     LPFILETIME time) /* [out] Destination for the current utc time */
 544 {
 545     LARGE_INTEGER t;
 546     NtQuerySystemTime( &t );
 547     time->dwLowDateTime = t.u.LowPart;
 548     time->dwHighDateTime = t.u.HighPart;
 549 }
 550
 551
 552 /*********************************************************************
 553  *      TIME_ClockTimeToFileTime    (olorin@fandra.org, 20-Sep-1998)
 554  *
 555  *  Used by GetProcessTimes to convert clock_t into FILETIME.
 556  *
 557  *      Differences to UnixTimeToFileTime:
 558  *          1) Divided by CLK_TCK
 559  *          2) Time is relative. There is no 'starting date', so there is
 560  *             no need for offset correction, like in UnixTimeToFileTime
 561  */
 562 static void TIME_ClockTimeToFileTime(clock_t unix_time, LPFILETIME filetime)
 563 {
 564     long clocksPerSec = sysconf(_SC_CLK_TCK);
 565     ULONGLONG secs = (ULONGLONG)unix_time * 10000000 / clocksPerSec;
 566     filetime->dwLowDateTime  = (DWORD)secs;
 567     filetime->dwHighDateTime = (DWORD)(secs >> 32);
 568 }
 569
 570 /*********************************************************************
 571  *      GetProcessTimes                         (KERNEL32.@)
 572  *
 573  *  Get the user and kernel execution times of a process,
 574  *  along with the creation and exit times if known.
 575  *
 576  * PARAMS
 577  *  hprocess       [in]  The process to be queried.
 578  *  lpCreationTime [out] The creation time of the process.
 579  *  lpExitTime     [out] The exit time of the process if exited.
 580  *  lpKernelTime   [out] The time spent in kernel routines in 100's of nanoseconds.
 581  *  lpUserTime     [out] The time spent in user routines in 100's of nanoseconds.
 582  *
 583  * RETURNS
 584  *  TRUE.
 585  *
 586  * NOTES
 587  *  olorin@fandra.org:
 588  *  Would be nice to subtract the cpu time used by Wine at startup.
 589  *  Also, there is a need to separate times used by different applications.
 590  *
 591  * BUGS
 592  *  KernelTime and UserTime are always for the current process
 593  */
 594 BOOL WINAPI GetProcessTimes( HANDLE hprocess, LPFILETIME lpCreationTime,
 595     LPFILETIME lpExitTime, LPFILETIME lpKernelTime, LPFILETIME lpUserTime )
 596 {
 597     struct tms tms;
 598     KERNEL_USER_TIMES pti;
 599
 600     times(&tms);
 601     TIME_ClockTimeToFileTime(tms.tms_utime,lpUserTime);
 602     TIME_ClockTimeToFileTime(tms.tms_stime,lpKernelTime);
 603     if (NtQueryInformationProcess( hprocess, ProcessTimes, &pti, sizeof(pti), NULL))
 604         return FALSE;
 605     LL2FILETIME( pti.CreateTime.QuadPart, lpCreationTime);
 606     LL2FILETIME( pti.ExitTime.QuadPart, lpExitTime);
 607     return TRUE;
 608 }
 609
 610 /*********************************************************************
 611  *      GetCalendarInfoA                                (KERNEL32.@)
 612  *
 613  */
 614 int WINAPI GetCalendarInfoA(LCID lcid, CALID Calendar, CALTYPE CalType,
 615                             LPSTR lpCalData, int cchData, LPDWORD lpValue)
 616 {
 617     int ret;
 618     LPWSTR lpCalDataW = NULL;
 619
 620     if (NLS_IsUnicodeOnlyLcid(lcid))
 621     {
 622       SetLastError(ERROR_INVALID_PARAMETER);
 623       return 0;
 624     }
 625
 626     if (cchData &&
 627         !(lpCalDataW = HeapAlloc(GetProcessHeap(), 0, cchData*sizeof(WCHAR))))
 628       return 0;
 629
 630     ret = GetCalendarInfoW(lcid, Calendar, CalType, lpCalDataW, cchData, lpValue);
 631     if(ret && lpCalDataW && lpCalData)
 632       WideCharToMultiByte(CP_ACP, 0, lpCalDataW, cchData, lpCalData, cchData, NULL, NULL);
 633     else if (CalType & CAL_RETURN_NUMBER)
 634         ret *= sizeof(WCHAR);
 635     HeapFree(GetProcessHeap(), 0, lpCalDataW);
 636
 637     return ret;
 638 }
 639
 640 /*********************************************************************
 641  *      GetCalendarInfoW                                (KERNEL32.@)
 642  *
 643  */
 644 int WINAPI GetCalendarInfoW(LCID Locale, CALID Calendar, CALTYPE CalType,
 645                             LPWSTR lpCalData, int cchData, LPDWORD lpValue)
 646 {
 647     if (CalType & CAL_NOUSEROVERRIDE)
 648         FIXME("flag CAL_NOUSEROVERRIDE used, not fully implemented\n");
 649     if (CalType & CAL_USE_CP_ACP)
 650         FIXME("flag CAL_USE_CP_ACP used, not fully implemented\n");
 651
 652     if (CalType & CAL_RETURN_NUMBER) {
 653         if (!lpValue)
 654         {
 655             SetLastError( ERROR_INVALID_PARAMETER );
 656             return 0;
 657         }
 658         if (lpCalData != NULL)
 659             WARN("lpCalData not NULL (%p) when it should!\n", lpCalData);
 660         if (cchData != 0)
 661             WARN("cchData not 0 (%d) when it should!\n", cchData);
 662     } else {
 663         if (lpValue != NULL)
 664             WARN("lpValue not NULL (%p) when it should!\n", lpValue);
 665     }
 666
 667     /* FIXME: No verification is made yet wrt Locale
 668      * for the CALTYPES not requiring GetLocaleInfoA */
 669     switch (CalType & ~(CAL_NOUSEROVERRIDE|CAL_RETURN_NUMBER|CAL_USE_CP_ACP)) {
 670         case CAL_ICALINTVALUE:
 671             if (CalType & CAL_RETURN_NUMBER)
 672                 return GetLocaleInfoW(Locale, LOCALE_RETURN_NUMBER | LOCALE_ICALENDARTYPE,
 673                         (LPWSTR)lpValue, 2);
 674             return GetLocaleInfoW(Locale, LOCALE_ICALENDARTYPE, lpCalData, cchData);
 675         case CAL_SCALNAME:
 676             FIXME("Unimplemented caltype %d\n", CalType & 0xffff);
 677             if (lpCalData) *lpCalData = 0;
 678             return 1;
 679         case CAL_IYEAROFFSETRANGE:
 680             FIXME("Unimplemented caltype %d\n", CalType & 0xffff);
 681             return 0;
 682         case CAL_SERASTRING:
 683             FIXME("Unimplemented caltype %d\n", CalType & 0xffff);
 684             return 0;
 685         case CAL_SSHORTDATE:
 686             return GetLocaleInfoW(Locale, LOCALE_SSHORTDATE, lpCalData, cchData);
 687         case CAL_SLONGDATE:
 688             return GetLocaleInfoW(Locale, LOCALE_SLONGDATE, lpCalData, cchData);
 689         case CAL_SDAYNAME1:
 690             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME1, lpCalData, cchData);
 691         case CAL_SDAYNAME2:
 692             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME2, lpCalData, cchData);
 693         case CAL_SDAYNAME3:
 694             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME3, lpCalData, cchData);
 695         case CAL_SDAYNAME4:
 696             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME4, lpCalData, cchData);
 697         case CAL_SDAYNAME5:
 698             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME5, lpCalData, cchData);
 699         case CAL_SDAYNAME6:
 700             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME6, lpCalData, cchData);
 701         case CAL_SDAYNAME7:
 702             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME7, lpCalData, cchData);
 703         case CAL_SABBREVDAYNAME1:
 704             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME1, lpCalData, cchData);
 705         case CAL_SABBREVDAYNAME2:
 706             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME2, lpCalData, cchData);
 707         case CAL_SABBREVDAYNAME3:
 708             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME3, lpCalData, cchData);
 709         case CAL_SABBREVDAYNAME4:
 710             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME4, lpCalData, cchData);
 711         case CAL_SABBREVDAYNAME5:
 712             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME5, lpCalData, cchData);
 713         case CAL_SABBREVDAYNAME6:
 714             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME6, lpCalData, cchData);
 715         case CAL_SABBREVDAYNAME7:
 716             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME7, lpCalData, cchData);
 717         case CAL_SMONTHNAME1:
 718             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME1, lpCalData, cchData);
 719         case CAL_SMONTHNAME2:
 720             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME2, lpCalData, cchData);
 721         case CAL_SMONTHNAME3:
 722             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME3, lpCalData, cchData);
 723         case CAL_SMONTHNAME4:
 724             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME4, lpCalData, cchData);
 725         case CAL_SMONTHNAME5:
 726             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME5, lpCalData, cchData);
 727         case CAL_SMONTHNAME6:
 728             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME6, lpCalData, cchData);
 729         case CAL_SMONTHNAME7:
 730             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME7, lpCalData, cchData);
 731         case CAL_SMONTHNAME8:
 732             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME8, lpCalData, cchData);
 733         case CAL_SMONTHNAME9:
 734             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME9, lpCalData, cchData);
 735         case CAL_SMONTHNAME10:
 736             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME10, lpCalData, cchData);
 737         case CAL_SMONTHNAME11:
 738             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME11, lpCalData, cchData);
 739         case CAL_SMONTHNAME12:
 740             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME12, lpCalData, cchData);
 741         case CAL_SMONTHNAME13:
 742             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME13, lpCalData, cchData);
 743         case CAL_SABBREVMONTHNAME1:
 744             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME1, lpCalData, cchData);
 745         case CAL_SABBREVMONTHNAME2:
 746             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME2, lpCalData, cchData);
 747         case CAL_SABBREVMONTHNAME3:
 748             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME3, lpCalData, cchData);
 749         case CAL_SABBREVMONTHNAME4:
 750             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME4, lpCalData, cchData);
 751         case CAL_SABBREVMONTHNAME5:
 752             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME5, lpCalData, cchData);
 753         case CAL_SABBREVMONTHNAME6:
 754             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME6, lpCalData, cchData);
 755         case CAL_SABBREVMONTHNAME7:
 756             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME7, lpCalData, cchData);
 757         case CAL_SABBREVMONTHNAME8:
 758             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME8, lpCalData, cchData);
 759         case CAL_SABBREVMONTHNAME9:
 760             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME9, lpCalData, cchData);
 761         case CAL_SABBREVMONTHNAME10:
 762             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME10, lpCalData, cchData);
 763         case CAL_SABBREVMONTHNAME11:
 764             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME11, lpCalData, cchData);
 765         case CAL_SABBREVMONTHNAME12:
 766             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME12, lpCalData, cchData);
 767         case CAL_SABBREVMONTHNAME13:
 768             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME13, lpCalData, cchData);
 769         case CAL_SYEARMONTH:
 770             return GetLocaleInfoW(Locale, LOCALE_SYEARMONTH, lpCalData, cchData);
 771         case CAL_ITWODIGITYEARMAX:
 772             if (CalType & CAL_RETURN_NUMBER)
 773             {
 774                 *lpValue = CALINFO_MAX_YEAR;
 775                 return sizeof(DWORD) / sizeof(WCHAR);
 776             }
 777             else
 778             {
 779                 static const WCHAR fmtW[] = {'%','u',0};
 780                 WCHAR buffer[10];
 781                 int ret = snprintfW( buffer, 10, fmtW, CALINFO_MAX_YEAR  ) + 1;
 782                 if (!lpCalData) return ret;
 783                 if (ret <= cchData)
 784                 {
 785                     strcpyW( lpCalData, buffer );
 786                     return ret;
 787                 }
 788                 SetLastError( ERROR_INSUFFICIENT_BUFFER );
 789                 return 0;
 790             }
 791             break;
 792         default:
 793             FIXME("Unknown caltype %d\n",CalType & 0xffff);
 794             SetLastError(ERROR_INVALID_FLAGS);
 795             return 0;
 796     }
 797     return 0;
 798 }
 799
 800 /*********************************************************************
 801  *      SetCalendarInfoA                                (KERNEL32.@)
 802  *
 803  */
 804 int WINAPI      SetCalendarInfoA(LCID Locale, CALID Calendar, CALTYPE CalType, LPCSTR lpCalData)
 805 {
 806     FIXME("(%08x,%08x,%08x,%s): stub\n",
 807           Locale, Calendar, CalType, debugstr_a(lpCalData));
 808     return 0;
 809 }
 810
 811 /*********************************************************************
 812  *      SetCalendarInfoW                                (KERNEL32.@)
 813  *
 814  *
 815  */
 816 int WINAPI      SetCalendarInfoW(LCID Locale, CALID Calendar, CALTYPE CalType, LPCWSTR lpCalData)
 817 {
 818     FIXME("(%08x,%08x,%08x,%s): stub\n",
 819           Locale, Calendar, CalType, debugstr_w(lpCalData));
 820     return 0;
 821 }
 822
 823 /*********************************************************************
 824  *      LocalFileTimeToFileTime                         (KERNEL32.@)
 825  */
 826 BOOL WINAPI LocalFileTimeToFileTime( const FILETIME *localft, LPFILETIME utcft )
 827 {
 828     NTSTATUS status;
 829     LARGE_INTEGER local, utc;
 830
 831     local.u.LowPart = localft->dwLowDateTime;
 832     local.u.HighPart = localft->dwHighDateTime;
 833     if (!(status = RtlLocalTimeToSystemTime( &local, &utc )))
 834     {
 835         utcft->dwLowDateTime = utc.u.LowPart;
 836         utcft->dwHighDateTime = utc.u.HighPart;
 837     }
 838     else SetLastError( RtlNtStatusToDosError(status) );
 839
 840     return !status;
 841 }
 842
 843 /*********************************************************************
 844  *      FileTimeToLocalFileTime                         (KERNEL32.@)
 845  */
 846 BOOL WINAPI FileTimeToLocalFileTime( const FILETIME *utcft, LPFILETIME localft )
 847 {
 848     NTSTATUS status;
 849     LARGE_INTEGER local, utc;
 850
 851     utc.u.LowPart = utcft->dwLowDateTime;
 852     utc.u.HighPart = utcft->dwHighDateTime;
 853     if (!(status = RtlSystemTimeToLocalTime( &utc, &local )))
 854     {
 855         localft->dwLowDateTime = local.u.LowPart;
 856         localft->dwHighDateTime = local.u.HighPart;
 857     }
 858     else SetLastError( RtlNtStatusToDosError(status) );
 859
 860     return !status;
 861 }
 862
 863 /*********************************************************************
 864  *      FileTimeToSystemTime                            (KERNEL32.@)
 865  */
 866 BOOL WINAPI FileTimeToSystemTime( const FILETIME *ft, LPSYSTEMTIME syst )
 867 {
 868     TIME_FIELDS tf;
 869     LARGE_INTEGER t;
 870
 871     t.u.LowPart = ft->dwLowDateTime;
 872     t.u.HighPart = ft->dwHighDateTime;
 873     RtlTimeToTimeFields(&t, &tf);
 874
 875     syst->wYear = tf.Year;
 876     syst->wMonth = tf.Month;
 877     syst->wDay = tf.Day;
 878     syst->wHour = tf.Hour;
 879     syst->wMinute = tf.Minute;
 880     syst->wSecond = tf.Second;
 881     syst->wMilliseconds = tf.Milliseconds;
 882     syst->wDayOfWeek = tf.Weekday;
 883     return TRUE;
 884 }
 885
 886 /*********************************************************************
 887  *      SystemTimeToFileTime                            (KERNEL32.@)
 888  */
 889 BOOL WINAPI SystemTimeToFileTime( const SYSTEMTIME *syst, LPFILETIME ft )
 890 {
 891     TIME_FIELDS tf;
 892     LARGE_INTEGER t;
 893
 894     tf.Year = syst->wYear;
 895     tf.Month = syst->wMonth;
 896     tf.Day = syst->wDay;
 897     tf.Hour = syst->wHour;
 898     tf.Minute = syst->wMinute;
 899     tf.Second = syst->wSecond;
 900     tf.Milliseconds = syst->wMilliseconds;
 901
 902     if( !RtlTimeFieldsToTime(&tf, &t)) {
 903         SetLastError( ERROR_INVALID_PARAMETER);
 904         return FALSE;
 905     }
 906     ft->dwLowDateTime = t.u.LowPart;
 907     ft->dwHighDateTime = t.u.HighPart;
 908     return TRUE;
 909 }
 910
 911 /*********************************************************************
 912  *      CompareFileTime                                 (KERNEL32.@)
 913  *
 914  * Compare two FILETIME's to each other.
 915  *
 916  * PARAMS
 917  *  x [I] First time
 918  *  y [I] time to compare to x
 919  *
 920  * RETURNS
 921  *  -1, 0, or 1 indicating that x is less than, equal to, or greater
 922  *  than y respectively.
 923  */
 924 INT WINAPI CompareFileTime( const FILETIME *x, const FILETIME *y )
 925 {
 926     if (!x || !y) return -1;
 927
 928     if (x->dwHighDateTime > y->dwHighDateTime)
 929         return 1;
 930     if (x->dwHighDateTime < y->dwHighDateTime)
 931         return -1;
 932     if (x->dwLowDateTime > y->dwLowDateTime)
 933         return 1;
 934     if (x->dwLowDateTime < y->dwLowDateTime)
 935         return -1;
 936     return 0;
 937 }
 938
 939 /*********************************************************************
 940  *      GetLocalTime                                    (KERNEL32.@)
 941  *
 942  * Get the current local time.
 943  *
 944  * PARAMS
 945  *  systime [O] Destination for current time.
 946  *
 947  * RETURNS
 948  *  Nothing.
 949  */
 950 VOID WINAPI GetLocalTime(LPSYSTEMTIME systime)
 951 {
 952     FILETIME lft;
 953     LARGE_INTEGER ft, ft2;
 954
 955     NtQuerySystemTime(&ft);
 956     RtlSystemTimeToLocalTime(&ft, &ft2);
 957     lft.dwLowDateTime = ft2.u.LowPart;
 958     lft.dwHighDateTime = ft2.u.HighPart;
 959     FileTimeToSystemTime(&lft, systime);
 960 }
 961
 962 /*********************************************************************
 963  *      GetSystemTime                                   (KERNEL32.@)
 964  *
 965  * Get the current system time.
 966  *
 967  * PARAMS
 968  *  systime [O] Destination for current time.
 969  *
 970  * RETURNS
 971  *  Nothing.
 972  */
 973 VOID WINAPI GetSystemTime(LPSYSTEMTIME systime)
 974 {
 975     FILETIME ft;
 976     LARGE_INTEGER t;
 977
 978     NtQuerySystemTime(&t);
 979     ft.dwLowDateTime = t.u.LowPart;
 980     ft.dwHighDateTime = t.u.HighPart;
 981     FileTimeToSystemTime(&ft, systime);
 982 }
 983
 984 /*********************************************************************
 985  *      GetDaylightFlag                                   (KERNEL32.@)
 986  *
 987  *  Specifies if daylight savings time is in operation.
 988  *
 989  * NOTES
 990  *  This function is called from the Win98's control applet timedate.cpl.
 991  *
 992  * RETURNS
 993  *  TRUE if daylight savings time is in operation.
 994  *  FALSE otherwise.
 995  */
 996 BOOL WINAPI GetDaylightFlag(void)
 997 {
 998     TIME_ZONE_INFORMATION tzinfo;
 999     return GetTimeZoneInformation( &tzinfo) == TIME_ZONE_ID_DAYLIGHT;
1000 }
1001
1002 /***********************************************************************
1003  *           DosDateTimeToFileTime   (KERNEL32.@)
1004  */
1005 BOOL WINAPI DosDateTimeToFileTime( WORD fatdate, WORD fattime, LPFILETIME ft)
1006 {
1007     struct tm newtm;
1008 #ifndef HAVE_TIMEGM
1009     struct tm *gtm;
1010     time_t time1, time2;
1011 #endif
1012
1013     newtm.tm_sec  = (fattime & 0x1f) * 2;
1014     newtm.tm_min  = (fattime >> 5) & 0x3f;
1015     newtm.tm_hour = (fattime >> 11);
1016     newtm.tm_mday = (fatdate & 0x1f);
1017     newtm.tm_mon  = ((fatdate >> 5) & 0x0f) - 1;
1018     newtm.tm_year = (fatdate >> 9) + 80;
1019     newtm.tm_isdst = -1;
1020 #ifdef HAVE_TIMEGM
1021     RtlSecondsSince1970ToTime( timegm(&newtm), (LARGE_INTEGER *)ft );
1022 #else
1023     time1 = mktime(&newtm);
1024     gtm = gmtime(&time1);
1025     time2 = mktime(gtm);
1026     RtlSecondsSince1970ToTime( 2*time1-time2, (LARGE_INTEGER *)ft );
1027 #endif
1028     return TRUE;
1029 }
1030
1031
1032 /***********************************************************************
1033  *           FileTimeToDosDateTime   (KERNEL32.@)
1034  */
1035 BOOL WINAPI FileTimeToDosDateTime( const FILETIME *ft, LPWORD fatdate,
1036                                      LPWORD fattime )
1037 {
1038     LARGE_INTEGER       li;
1039     ULONG               t;
1040     time_t              unixtime;
1041     struct tm*          tm;
1042
1043     if (!fatdate || !fattime)
1044     {
1045         SetLastError(ERROR_INVALID_PARAMETER);
1046         return FALSE;
1047     }
1048     li.u.LowPart = ft->dwLowDateTime;
1049     li.u.HighPart = ft->dwHighDateTime;
1050     if (!RtlTimeToSecondsSince1970( &li, &t ))
1051     {
1052         SetLastError(ERROR_INVALID_PARAMETER);
1053         return FALSE;
1054     }
1055     unixtime = t;
1056     tm = gmtime( &unixtime );
1057     if (fattime)
1058         *fattime = (tm->tm_hour << 11) + (tm->tm_min << 5) + (tm->tm_sec / 2);
1059     if (fatdate)
1060         *fatdate = ((tm->tm_year - 80) << 9) + ((tm->tm_mon + 1) << 5)
1061                    + tm->tm_mday;
1062     return TRUE;
1063 }
1064
1065 /*********************************************************************
1066  *      GetSystemTimes                                  (KERNEL32.@)
1067  *
1068  * Retrieves system timing information
1069  *
1070  * PARAMS
1071  *  lpIdleTime [O] Destination for idle time.
1072  *  lpKernelTime [O] Destination for kernel time.
1073  *  lpUserTime [O] Destination for user time.
1074  *
1075  * RETURNS
1076  *  TRUE if success, FALSE otherwise.
1077  */
1078 BOOL WINAPI GetSystemTimes(LPFILETIME lpIdleTime, LPFILETIME lpKernelTime, LPFILETIME lpUserTime)
1079 {
1080     FIXME("(%p,%p,%p): Stub!\n", lpIdleTime, lpKernelTime, lpUserTime);
1081
1082     return FALSE;
1083 }
1084
1085 /***********************************************************************
1086  *           GetDynamicTimeZoneInformation   (KERNEL32.@)
1087  */
1088 DWORD WINAPI GetDynamicTimeZoneInformation(PDYNAMIC_TIME_ZONE_INFORMATION info)
1089 {
1090     FIXME("(%p) stub!\n", info);
1091     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1092     return TIME_ZONE_ID_INVALID;
1093 }