dlls/kernel/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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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 <stdlib.h>
  28 #ifdef HAVE_SYS_TIME_H
  29 # include <sys/time.h>
  30 #endif
  31 #ifdef HAVE_SYS_TIMES_H
  32 # include <sys/times.h>
  33 #endif
  34
  35 #define NONAMELESSUNION
  36 #define NONAMELESSSTRUCT
  37 #include "ntstatus.h"
  38 #include "file.h"
  39 #include "winternl.h"
  40 #include "winerror.h"
  41 #include "winnls.h"
  42 #include "wine/unicode.h"
  43 #include "wine/debug.h"
  44
  45 WINE_DEFAULT_DEBUG_CHANNEL(win32);
  46
  47 /* maximum time adjustment in seconds for SetLocalTime and SetSystemTime */
  48 #define SETTIME_MAX_ADJUST 120
  49 #define CALINFO_MAX_YEAR 2029
  50
  51
  52 /***********************************************************************
  53  *              SetLocalTime            (KERNEL32.@)
  54  *
  55  *  Set the local time using current time zone and daylight
  56  *  savings settings.
  57  *
  58  * RETURNS
  59  *  Success: TRUE. The time was set
  60  *  Failure: FALSE, if the time was invalid or caller does not have
  61  *           permission to change the time.
  62  */
  63 BOOL WINAPI SetLocalTime(
  64     const SYSTEMTIME *systime) /* [in] The desired local time. */
  65 {
  66     FILETIME ft;
  67     LARGE_INTEGER st, st2;
  68     NTSTATUS status;
  69
  70     SystemTimeToFileTime( systime, &ft );
  71     st.s.LowPart = ft.dwLowDateTime;
  72     st.s.HighPart = ft.dwHighDateTime;
  73     RtlLocalTimeToSystemTime( &st, &st2 );
  74
  75     if ((status = NtSetSystemTime(&st2, NULL)))
  76         SetLastError( RtlNtStatusToDosError(status) );
  77     return !status;
  78 }
  79
  80
  81 /***********************************************************************
  82  *           GetSystemTimeAdjustment     (KERNEL32.@)
  83  *
  84  *  Get the period between clock interrupts and the amount the clock
  85  *  is adjusted each interrupt so as to keep it in sync with an external source.
  86  *
  87  * RETURNS
  88  *  TRUE.
  89  *
  90  * BUGS
  91  *  Only the special case of disabled time adjustments is supported.
  92  */
  93 BOOL WINAPI GetSystemTimeAdjustment(
  94     PDWORD lpTimeAdjustment,         /* [out] The clock adjustment per interupt in 100's of nanoseconds. */
  95     PDWORD lpTimeIncrement,          /* [out] The time between clock interupts in 100's of nanoseconds. */
  96     PBOOL  lpTimeAdjustmentDisabled) /* [out] The clock synchonisation has been disabled. */
  97 {
  98     *lpTimeAdjustment = 0;
  99     *lpTimeIncrement = 0;
 100     *lpTimeAdjustmentDisabled = TRUE;
 101     return TRUE;
 102 }
 103
 104
 105 /***********************************************************************
 106  *              SetSystemTime            (KERNEL32.@)
 107  *
 108  *  Set the system time in utc.
 109  *
 110  * RETURNS
 111  *  Success: TRUE. The time was set
 112  *  Failure: FALSE, if the time was invalid or caller does not have
 113  *           permission to change the time.
 114  */
 115 BOOL WINAPI SetSystemTime(
 116     const SYSTEMTIME *systime) /* [in] The desired system time. */
 117 {
 118     FILETIME ft;
 119     LARGE_INTEGER t;
 120     NTSTATUS status;
 121
 122     SystemTimeToFileTime( systime, &ft );
 123     t.s.LowPart = ft.dwLowDateTime;
 124     t.s.HighPart = ft.dwHighDateTime;
 125     if ((status = NtSetSystemTime(&t, NULL)))
 126         SetLastError( RtlNtStatusToDosError(status) );
 127     return !status;
 128 }
 129
 130 /***********************************************************************
 131  *              SetSystemTimeAdjustment  (KERNEL32.@)
 132  *
 133  *  Enables or disables the timing adjustments to the system's clock.
 134  *
 135  * RETURNS
 136  *  Success: TRUE.
 137  *  Failure: FALSE.
 138  */
 139 BOOL WINAPI SetSystemTimeAdjustment(
 140     DWORD dwTimeAdjustment,
 141     BOOL bTimeAdjustmentDisabled)
 142 {
 143     /* Fake function for now... */
 144     FIXME("(%08lx,%d): stub !\n", dwTimeAdjustment, bTimeAdjustmentDisabled);
 145     return TRUE;
 146 }
 147
 148
 149 /***********************************************************************
 150  *              GetTimeZoneInformation  (KERNEL32.@)
 151  *
 152  *  Get information about the current local time zone.
 153  *
 154  * RETURNS
 155  *  Success: TIME_ZONE_ID_STANDARD. tzinfo contains the time zone info.
 156  *  Failure: TIME_ZONE_ID_INVALID.
 157  */
 158 DWORD WINAPI GetTimeZoneInformation(
 159     LPTIME_ZONE_INFORMATION tzinfo) /* [out] Destination for time zone information */
 160 {
 161     NTSTATUS status;
 162     if ((status = RtlQueryTimeZoneInformation(tzinfo)))
 163         SetLastError( RtlNtStatusToDosError(status) );
 164     return TIME_ZONE_ID_STANDARD;
 165 }
 166
 167
 168 /***********************************************************************
 169  *              SetTimeZoneInformation  (KERNEL32.@)
 170  *
 171  *  Change the settings of the current local time zone.
 172  *
 173  * RETURNS
 174  *  Success: TRUE. The time zone was updated with the settings from tzinfo
 175  *  Failure: FALSE.
 176  */
 177 BOOL WINAPI SetTimeZoneInformation(
 178     const LPTIME_ZONE_INFORMATION tzinfo) /* [in] The new time zone. */
 179 {
 180     NTSTATUS status;
 181     if ((status = RtlSetTimeZoneInformation(tzinfo)))
 182         SetLastError( RtlNtStatusToDosError(status) );
 183     return !status;
 184 }
 185
 186
 187 /***********************************************************************
 188  *  _DayLightCompareDate
 189  *
 190  *  Compares two dates without looking at the year
 191  *
 192  * RETURNS
 193  *
 194  *  -1 if date < compareDate
 195  *   0 if date == compareDate
 196  *   1 if date > compareDate
 197  *  -2 if an error occures
 198  */
 199
 200 static int _DayLightCompareDate(
 201     const LPSYSTEMTIME date,                       /* [in] The date to compare. */
 202     const LPSYSTEMTIME compareDate)                /* [in] The daylight saving begin or end date */
 203 {
 204     int limit_day;
 205
 206     if (compareDate->wYear != 0)
 207     {
 208         if (date->wMonth < compareDate->wMonth)
 209             return -1; /* We are in a year before the date limit. */
 210
 211         if (date->wMonth > compareDate->wMonth)
 212             return 1; /* We are in a year after the date limit. */
 213     }
 214
 215     if (date->wMonth < compareDate->wMonth)
 216         return -1; /* We are in a month before the date limit. */
 217
 218     if (date->wMonth > compareDate->wMonth)
 219         return 1; /* We are in a month after the date limit. */
 220
 221     if (compareDate->wDayOfWeek <= 6)
 222     {
 223        SYSTEMTIME tmp;
 224        FILETIME tmp_ft;
 225
 226        /* compareDate->wDay is interpreted as number of the week in the month. */
 227        /* 5 means: the last week in the month */
 228        int weekofmonth = compareDate->wDay;
 229
 230          /* calculate day of week for the first day in the month */
 231         memcpy(&tmp, date, sizeof(SYSTEMTIME));
 232         tmp.wDay = 1;
 233         tmp.wDayOfWeek = -1;
 234
 235         if (weekofmonth == 5)
 236         {
 237              /* Go to the beginning of the next month. */
 238             if (++tmp.wMonth > 12)
 239             {
 240                 tmp.wMonth = 1;
 241                 ++tmp.wYear;
 242             }
 243         }
 244
 245         if (!SystemTimeToFileTime(&tmp, &tmp_ft))
 246             return -2;
 247
 248         if (weekofmonth == 5)
 249         {
 250           LONGLONG t, one_day;
 251
 252           t = tmp_ft.dwHighDateTime;
 253           t <<= 32;
 254           t += (UINT)tmp_ft.dwLowDateTime;
 255
 256           /* subtract one day */
 257           one_day = 24*60*60;
 258           one_day *= 10000000;
 259           t -= one_day;
 260
 261           tmp_ft.dwLowDateTime  = (UINT)t;
 262           tmp_ft.dwHighDateTime = (UINT)(t >> 32);
 263         }
 264
 265         if (!FileTimeToSystemTime(&tmp_ft, &tmp))
 266             return -2;
 267
 268        if (weekofmonth == 5)
 269        {
 270           /* calculate the last matching day of the week in this month */
 271           int dif = tmp.wDayOfWeek - compareDate->wDayOfWeek;
 272           if (dif < 0)
 273              dif += 7;
 274
 275           limit_day = tmp.wDay - dif;
 276        }
 277        else
 278        {
 279           /* calculate the matching day of the week in the given week */
 280           int dif = compareDate->wDayOfWeek - tmp.wDayOfWeek;
 281           if (dif < 0)
 282              dif += 7;
 283
 284           limit_day = tmp.wDay + 7*(weekofmonth-1) + dif;
 285        }
 286     }
 287     else
 288     {
 289        limit_day = compareDate->wDay;
 290     }
 291
 292     if (date->wDay < limit_day)
 293         return -1;
 294
 295     if (date->wDay > limit_day)
 296         return 1;
 297
 298     return 0;   /* date is equal to the date limit. */
 299 }
 300
 301
 302 /***********************************************************************
 303  *  _GetTimezoneBias
 304  *
 305  *  Calculates the local time bias for a given time zone
 306  *
 307  * RETURNS
 308  *
 309  *  Returns TRUE when the time zone bias was calculated.
 310  */
 311
 312 static BOOL _GetTimezoneBias(
 313     const LPTIME_ZONE_INFORMATION lpTimeZoneInformation, /* [in] The time zone data.            */
 314     LPSYSTEMTIME                  lpSystemTime,          /* [in] The system time.               */
 315     LONG*                         pBias)                 /* [out] The calulated bias in minutes */
 316 {
 317     int ret;
 318     BOOL beforeStandardDate, afterDaylightDate;
 319     BOOL daylightsaving = FALSE;
 320     LONG bias = lpTimeZoneInformation->Bias;
 321
 322     if (lpTimeZoneInformation->DaylightDate.wMonth != 0)
 323     {
 324         if (lpTimeZoneInformation->StandardDate.wMonth == 0 ||
 325             lpTimeZoneInformation->StandardDate.wDay<1 ||
 326             lpTimeZoneInformation->StandardDate.wDay>5 ||
 327             lpTimeZoneInformation->DaylightDate.wDay<1 ||
 328             lpTimeZoneInformation->DaylightDate.wDay>5)
 329         {
 330             SetLastError(ERROR_INVALID_PARAMETER);
 331             return FALSE;
 332         }
 333
 334          /* check for daylight saving */
 335         ret = _DayLightCompareDate(lpSystemTime, &lpTimeZoneInformation->StandardDate);
 336         if (ret == -2)
 337           return FALSE;
 338
 339         beforeStandardDate = ret < 0;
 340
 341         ret = _DayLightCompareDate(lpSystemTime, &lpTimeZoneInformation->DaylightDate);
 342         if (ret == -2)
 343           return FALSE;
 344
 345         afterDaylightDate = ret >= 0;
 346
 347         if (beforeStandardDate && afterDaylightDate)
 348             daylightsaving = TRUE;
 349     }
 350
 351     if (daylightsaving)
 352         bias += lpTimeZoneInformation->DaylightBias;
 353     else if (lpTimeZoneInformation->StandardDate.wMonth != 0)
 354         bias += lpTimeZoneInformation->StandardBias;
 355
 356     *pBias = bias;
 357
 358     return TRUE;
 359 }
 360
 361
 362 /***********************************************************************
 363  *              SystemTimeToTzSpecificLocalTime  (KERNEL32.@)
 364  *
 365  *  Convert a utc system time to a local time in a given time zone.
 366  *
 367  * RETURNS
 368  *  Success: TRUE. lpLocalTime contains the converted time
 369  *  Failure: FALSE.
 370  */
 371
 372 BOOL WINAPI SystemTimeToTzSpecificLocalTime(
 373     LPTIME_ZONE_INFORMATION lpTimeZoneInformation, /* [in] The desired time zone. */
 374     LPSYSTEMTIME            lpUniversalTime,       /* [in] The utc time to base local time on. */
 375     LPSYSTEMTIME            lpLocalTime)           /* [out] The local time in the time zone. */
 376 {
 377     FILETIME ft;
 378     LONG lBias;
 379     LONGLONG t, bias;
 380     TIME_ZONE_INFORMATION tzinfo;
 381
 382     if (lpTimeZoneInformation != NULL)
 383     {
 384         memcpy(&tzinfo, lpTimeZoneInformation, sizeof(TIME_ZONE_INFORMATION));
 385     }
 386     else
 387     {
 388         if (GetTimeZoneInformation(&tzinfo) == TIME_ZONE_ID_INVALID)
 389             return FALSE;
 390     }
 391
 392     if (!SystemTimeToFileTime(lpUniversalTime, &ft))
 393         return FALSE;
 394
 395     t = ft.dwHighDateTime;
 396     t <<= 32;
 397     t += (UINT)ft.dwLowDateTime;
 398
 399     if (!_GetTimezoneBias(&tzinfo, lpUniversalTime, &lBias))
 400         return FALSE;
 401
 402     bias = (LONGLONG)lBias * 600000000; /* 60 seconds per minute, 100000 [100-nanoseconds-ticks] per second */
 403     t -= bias;
 404
 405     ft.dwLowDateTime  = (UINT)t;
 406     ft.dwHighDateTime = (UINT)(t >> 32);
 407
 408     return FileTimeToSystemTime(&ft, lpLocalTime);
 409 }
 410
 411
 412 /***********************************************************************
 413  *              TzSpecificLocalTimeToSystemTime  (KERNEL32.@)
 414  *
 415  *  Converts a local time to a time in utc.
 416  *
 417  * RETURNS
 418  *  Success: TRUE. lpUniversalTime contains the converted time
 419  *  Failure: FALSE.
 420  */
 421 BOOL WINAPI TzSpecificLocalTimeToSystemTime(
 422     LPTIME_ZONE_INFORMATION lpTimeZoneInformation, /* [in] The desired time zone. */
 423     LPSYSTEMTIME            lpLocalTime,           /* [in] The local time. */
 424     LPSYSTEMTIME            lpUniversalTime)       /* [out] The calculated utc time. */
 425 {
 426     FILETIME ft;
 427     LONG lBias;
 428     LONGLONG t, bias;
 429     TIME_ZONE_INFORMATION tzinfo;
 430
 431     if (lpTimeZoneInformation != NULL)
 432     {
 433         memcpy(&tzinfo, lpTimeZoneInformation, sizeof(TIME_ZONE_INFORMATION));
 434     }
 435     else
 436     {
 437         if (GetTimeZoneInformation(&tzinfo) == TIME_ZONE_ID_INVALID)
 438             return FALSE;
 439     }
 440
 441     if (!SystemTimeToFileTime(lpLocalTime, &ft))
 442         return FALSE;
 443
 444     t = ft.dwHighDateTime;
 445     t <<= 32;
 446     t += (UINT)ft.dwLowDateTime;
 447
 448     if (!_GetTimezoneBias(&tzinfo, lpLocalTime, &lBias))
 449         return FALSE;
 450
 451     bias = (LONGLONG)lBias * 600000000; /* 60 seconds per minute, 100000 [100-nanoseconds-ticks] per second */
 452     t += bias;
 453
 454     ft.dwLowDateTime  = (UINT)t;
 455     ft.dwHighDateTime = (UINT)(t >> 32);
 456
 457     return FileTimeToSystemTime(&ft, lpUniversalTime);
 458 }
 459
 460
 461 /***********************************************************************
 462  *              GetSystemTimeAsFileTime  (KERNEL32.@)
 463  *
 464  *  Get the current time in utc format.
 465  *
 466  *  RETURNS
 467  *   Nothing.
 468  */
 469 VOID WINAPI GetSystemTimeAsFileTime(
 470     LPFILETIME time) /* [out] Destination for the current utc time */
 471 {
 472     LARGE_INTEGER t;
 473     NtQuerySystemTime( &t );
 474     time->dwLowDateTime = t.s.LowPart;
 475     time->dwHighDateTime = t.s.HighPart;
 476 }
 477
 478
 479 /*********************************************************************
 480  *      TIME_ClockTimeToFileTime    (olorin@fandra.org, 20-Sep-1998)
 481  *
 482  *  Used by GetProcessTimes to convert clock_t into FILETIME.
 483  *
 484  *      Differences to UnixTimeToFileTime:
 485  *          1) Divided by CLK_TCK
 486  *          2) Time is relative. There is no 'starting date', so there is
 487  *             no need for offset correction, like in UnixTimeToFileTime
 488  */
 489 static void TIME_ClockTimeToFileTime(clock_t unix_time, LPFILETIME filetime)
 490 {
 491     ULONGLONG secs = RtlEnlargedUnsignedMultiply( unix_time, 10000000 );
 492     secs = RtlExtendedLargeIntegerDivide( secs, CLK_TCK, NULL );
 493     filetime->dwLowDateTime  = (DWORD)secs;
 494     filetime->dwHighDateTime = (DWORD)(secs >> 32);
 495 }
 496
 497 /*********************************************************************
 498  *      GetProcessTimes                         (KERNEL32.@)
 499  *
 500  *  Get the user and kernel execution times of a process,
 501  *  along with the creation and exit times if known.
 502  *
 503  * RETURNS
 504  *  TRUE.
 505  *
 506  * NOTES
 507  *  olorin@fandra.org:
 508  *  Would be nice to subtract the cpu time used by Wine at startup.
 509  *  Also, there is a need to separate times used by different applications.
 510  *
 511  * BUGS
 512  *  lpCreationTime and lpExitTime are not initialised in the Wine implementation.
 513  */
 514 BOOL WINAPI GetProcessTimes(
 515     HANDLE     hprocess,       /* [in] The process to be queried (obtained from PROCESS_QUERY_INFORMATION). */
 516     LPFILETIME lpCreationTime, /* [out] The creation time of the process. */
 517     LPFILETIME lpExitTime,     /* [out] The exit time of the process if exited. */
 518     LPFILETIME lpKernelTime,   /* [out] The time spent in kernal routines in 100's of nanoseconds. */
 519     LPFILETIME lpUserTime)     /* [out] The time spent in user routines in 100's of nanoseconds. */
 520 {
 521     struct tms tms;
 522
 523     times(&tms);
 524     TIME_ClockTimeToFileTime(tms.tms_utime,lpUserTime);
 525     TIME_ClockTimeToFileTime(tms.tms_stime,lpKernelTime);
 526     return TRUE;
 527 }
 528
 529 /*********************************************************************
 530  *      GetCalendarInfoA                                (KERNEL32.@)
 531  *
 532  */
 533 int WINAPI GetCalendarInfoA(LCID Locale, CALID Calendar, CALTYPE CalType,
 534                             LPSTR lpCalData, int cchData, LPDWORD lpValue)
 535 {
 536     int ret;
 537     LPWSTR lpCalDataW = NULL;
 538
 539     FIXME("(%08lx,%08lx,%08lx,%p,%d,%p): quarter-stub\n",
 540           Locale, Calendar, CalType, lpCalData, cchData, lpValue);
 541     /* FIXME: Should verify if Locale is allowable in ANSI, as per MSDN */
 542
 543     if(cchData)
 544       if(!(lpCalDataW = HeapAlloc(GetProcessHeap(), 0, cchData*sizeof(WCHAR)))) return 0;
 545
 546     ret = GetCalendarInfoW(Locale, Calendar, CalType, lpCalDataW, cchData, lpValue);
 547     if(ret && lpCalDataW && lpCalData)
 548       WideCharToMultiByte(CP_ACP, 0, lpCalDataW, cchData, lpCalData, cchData, NULL, NULL);
 549     if(lpCalDataW)
 550       HeapFree(GetProcessHeap(), 0, lpCalDataW);
 551
 552     return ret;
 553 }
 554
 555 /*********************************************************************
 556  *      GetCalendarInfoW                                (KERNEL32.@)
 557  *
 558  * See GetCalendarInfoA.
 559  */
 560 int WINAPI GetCalendarInfoW(LCID Locale, CALID Calendar, CALTYPE CalType,
 561                             LPWSTR lpCalData, int cchData, LPDWORD lpValue)
 562 {
 563     FIXME("(%08lx,%08lx,%08lx,%p,%d,%p): quarter-stub\n",
 564           Locale, Calendar, CalType, lpCalData, cchData, lpValue);
 565
 566     if (CalType & CAL_NOUSEROVERRIDE)
 567         FIXME("flag CAL_NOUSEROVERRIDE used, not fully implemented\n");
 568     if (CalType & CAL_USE_CP_ACP)
 569         FIXME("flag CAL_USE_CP_ACP used, not fully implemented\n");
 570
 571     if (CalType & CAL_RETURN_NUMBER) {
 572         if (lpCalData != NULL)
 573             WARN("lpCalData not NULL (%p) when it should!\n", lpCalData);
 574         if (cchData != 0)
 575             WARN("cchData not 0 (%d) when it should!\n", cchData);
 576     } else {
 577         if (lpValue != NULL)
 578             WARN("lpValue not NULL (%p) when it should!\n", lpValue);
 579     }
 580
 581     /* FIXME: No verification is made yet wrt Locale
 582      * for the CALTYPES not requiring GetLocaleInfoA */
 583     switch (CalType & ~(CAL_NOUSEROVERRIDE|CAL_RETURN_NUMBER|CAL_USE_CP_ACP)) {
 584         case CAL_ICALINTVALUE:
 585             FIXME("Unimplemented caltype %ld\n", CalType & 0xffff);
 586             return E_FAIL;
 587         case CAL_SCALNAME:
 588             FIXME("Unimplemented caltype %ld\n", CalType & 0xffff);
 589             return E_FAIL;
 590         case CAL_IYEAROFFSETRANGE:
 591             FIXME("Unimplemented caltype %ld\n", CalType & 0xffff);
 592             return E_FAIL;
 593         case CAL_SERASTRING:
 594             FIXME("Unimplemented caltype %ld\n", CalType & 0xffff);
 595             return E_FAIL;
 596         case CAL_SSHORTDATE:
 597             return GetLocaleInfoW(Locale, LOCALE_SSHORTDATE, lpCalData, cchData);
 598         case CAL_SLONGDATE:
 599             return GetLocaleInfoW(Locale, LOCALE_SLONGDATE, lpCalData, cchData);
 600         case CAL_SDAYNAME1:
 601             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME1, lpCalData, cchData);
 602         case CAL_SDAYNAME2:
 603             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME2, lpCalData, cchData);
 604         case CAL_SDAYNAME3:
 605             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME3, lpCalData, cchData);
 606         case CAL_SDAYNAME4:
 607             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME4, lpCalData, cchData);
 608         case CAL_SDAYNAME5:
 609             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME5, lpCalData, cchData);
 610         case CAL_SDAYNAME6:
 611             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME6, lpCalData, cchData);
 612         case CAL_SDAYNAME7:
 613             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME7, lpCalData, cchData);
 614         case CAL_SABBREVDAYNAME1:
 615             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME1, lpCalData, cchData);
 616         case CAL_SABBREVDAYNAME2:
 617             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME2, lpCalData, cchData);
 618         case CAL_SABBREVDAYNAME3:
 619             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME3, lpCalData, cchData);
 620         case CAL_SABBREVDAYNAME4:
 621             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME4, lpCalData, cchData);
 622         case CAL_SABBREVDAYNAME5:
 623             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME5, lpCalData, cchData);
 624         case CAL_SABBREVDAYNAME6:
 625             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME6, lpCalData, cchData);
 626         case CAL_SABBREVDAYNAME7:
 627             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME7, lpCalData, cchData);
 628         case CAL_SMONTHNAME1:
 629             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME1, lpCalData, cchData);
 630         case CAL_SMONTHNAME2:
 631             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME2, lpCalData, cchData);
 632         case CAL_SMONTHNAME3:
 633             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME3, lpCalData, cchData);
 634         case CAL_SMONTHNAME4:
 635             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME4, lpCalData, cchData);
 636         case CAL_SMONTHNAME5:
 637             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME5, lpCalData, cchData);
 638         case CAL_SMONTHNAME6:
 639             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME6, lpCalData, cchData);
 640         case CAL_SMONTHNAME7:
 641             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME7, lpCalData, cchData);
 642         case CAL_SMONTHNAME8:
 643             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME8, lpCalData, cchData);
 644         case CAL_SMONTHNAME9:
 645             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME9, lpCalData, cchData);
 646         case CAL_SMONTHNAME10:
 647             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME10, lpCalData, cchData);
 648         case CAL_SMONTHNAME11:
 649             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME11, lpCalData, cchData);
 650         case CAL_SMONTHNAME12:
 651             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME12, lpCalData, cchData);
 652         case CAL_SMONTHNAME13:
 653             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME13, lpCalData, cchData);
 654         case CAL_SABBREVMONTHNAME1:
 655             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME1, lpCalData, cchData);
 656         case CAL_SABBREVMONTHNAME2:
 657             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME2, lpCalData, cchData);
 658         case CAL_SABBREVMONTHNAME3:
 659             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME3, lpCalData, cchData);
 660         case CAL_SABBREVMONTHNAME4:
 661             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME4, lpCalData, cchData);
 662         case CAL_SABBREVMONTHNAME5:
 663             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME5, lpCalData, cchData);
 664         case CAL_SABBREVMONTHNAME6:
 665             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME6, lpCalData, cchData);
 666         case CAL_SABBREVMONTHNAME7:
 667             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME7, lpCalData, cchData);
 668         case CAL_SABBREVMONTHNAME8:
 669             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME8, lpCalData, cchData);
 670         case CAL_SABBREVMONTHNAME9:
 671             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME9, lpCalData, cchData);
 672         case CAL_SABBREVMONTHNAME10:
 673             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME10, lpCalData, cchData);
 674         case CAL_SABBREVMONTHNAME11:
 675             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME11, lpCalData, cchData);
 676         case CAL_SABBREVMONTHNAME12:
 677             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME12, lpCalData, cchData);
 678         case CAL_SABBREVMONTHNAME13:
 679             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME13, lpCalData, cchData);
 680         case CAL_SYEARMONTH:
 681             return GetLocaleInfoW(Locale, LOCALE_SYEARMONTH, lpCalData, cchData);
 682         case CAL_ITWODIGITYEARMAX:
 683             if (lpValue) *lpValue = CALINFO_MAX_YEAR;
 684             break;
 685         default: MESSAGE("Unknown caltype %ld\n",CalType & 0xffff);
 686                  return E_FAIL;
 687     }
 688     return 0;
 689 }
 690
 691 /*********************************************************************
 692  *      SetCalendarInfoA                                (KERNEL32.@)
 693  *
 694  */
 695 int WINAPI      SetCalendarInfoA(LCID Locale, CALID Calendar, CALTYPE CalType, LPCSTR lpCalData)
 696 {
 697     FIXME("(%08lx,%08lx,%08lx,%s): stub\n",
 698           Locale, Calendar, CalType, debugstr_a(lpCalData));
 699     return 0;
 700 }
 701
 702 /*********************************************************************
 703  *      SetCalendarInfoW                                (KERNEL32.@)
 704  *
 705  * See SetCalendarInfoA.
 706  */
 707 int WINAPI      SetCalendarInfoW(LCID Locale, CALID Calendar, CALTYPE CalType, LPCWSTR lpCalData)
 708 {
 709     FIXME("(%08lx,%08lx,%08lx,%s): stub\n",
 710           Locale, Calendar, CalType, debugstr_w(lpCalData));
 711     return 0;
 712 }
 713
 714 /*********************************************************************
 715  *      LocalFileTimeToFileTime                         (KERNEL32.@)
 716  */
 717 BOOL WINAPI LocalFileTimeToFileTime( const FILETIME *localft, LPFILETIME utcft )
 718 {
 719     NTSTATUS status;
 720     LARGE_INTEGER local, utc;
 721
 722     local.s.LowPart = localft->dwLowDateTime;
 723     local.s.HighPart = localft->dwHighDateTime;
 724     if (!(status = RtlLocalTimeToSystemTime( &local, &utc )))
 725     {
 726         utcft->dwLowDateTime = utc.s.LowPart;
 727         utcft->dwHighDateTime = utc.s.HighPart;
 728     }
 729     else SetLastError( RtlNtStatusToDosError(status) );
 730
 731     return !status;
 732 }
 733
 734 /*********************************************************************
 735  *      FileTimeToLocalFileTime                         (KERNEL32.@)
 736  */
 737 BOOL WINAPI FileTimeToLocalFileTime( const FILETIME *utcft, LPFILETIME localft )
 738 {
 739     NTSTATUS status;
 740     LARGE_INTEGER local, utc;
 741
 742     utc.s.LowPart = utcft->dwLowDateTime;
 743     utc.s.HighPart = utcft->dwHighDateTime;
 744     if (!(status = RtlSystemTimeToLocalTime( &utc, &local )))
 745     {
 746         localft->dwLowDateTime = local.s.LowPart;
 747         localft->dwHighDateTime = local.s.HighPart;
 748     }
 749     else SetLastError( RtlNtStatusToDosError(status) );
 750
 751     return !status;
 752 }
 753
 754 /*********************************************************************
 755  *      FileTimeToSystemTime                            (KERNEL32.@)
 756  */
 757 BOOL WINAPI FileTimeToSystemTime( const FILETIME *ft, LPSYSTEMTIME syst )
 758 {
 759     TIME_FIELDS tf;
 760     LARGE_INTEGER t;
 761
 762     t.s.LowPart = ft->dwLowDateTime;
 763     t.s.HighPart = ft->dwHighDateTime;
 764     RtlTimeToTimeFields(&t, &tf);
 765
 766     syst->wYear = tf.Year;
 767     syst->wMonth = tf.Month;
 768     syst->wDay = tf.Day;
 769     syst->wHour = tf.Hour;
 770     syst->wMinute = tf.Minute;
 771     syst->wSecond = tf.Second;
 772     syst->wMilliseconds = tf.Milliseconds;
 773     syst->wDayOfWeek = tf.Weekday;
 774     return TRUE;
 775 }
 776
 777 /*********************************************************************
 778  *      SystemTimeToFileTime                            (KERNEL32.@)
 779  */
 780 BOOL WINAPI SystemTimeToFileTime( const SYSTEMTIME *syst, LPFILETIME ft )
 781 {
 782     TIME_FIELDS tf;
 783     LARGE_INTEGER t;
 784
 785     tf.Year = syst->wYear;
 786     tf.Month = syst->wMonth;
 787     tf.Day = syst->wDay;
 788     tf.Hour = syst->wHour;
 789     tf.Minute = syst->wMinute;
 790     tf.Second = syst->wSecond;
 791     tf.Milliseconds = syst->wMilliseconds;
 792
 793     RtlTimeFieldsToTime(&tf, &t);
 794     ft->dwLowDateTime = t.s.LowPart;
 795     ft->dwHighDateTime = t.s.HighPart;
 796     return TRUE;
 797 }
 798
 799 /*********************************************************************
 800  *      CompareFileTime                                 (KERNEL32.@)
 801  *
 802  * Compare two FILETIME's to each other.
 803  *
 804  * PARAMS
 805  *  x [I] First time
 806  *  y [I] time to compare to x
 807  *
 808  * RETURNS
 809  *  -1, 0, or 1 indicating that x is less than, equal to, or greater
 810  *  than y respectively.
 811  */
 812 INT WINAPI CompareFileTime( const FILETIME *x, const FILETIME *y )
 813 {
 814     if (!x || !y) return -1;
 815
 816     if (x->dwHighDateTime > y->dwHighDateTime)
 817         return 1;
 818     if (x->dwHighDateTime < y->dwHighDateTime)
 819         return -1;
 820     if (x->dwLowDateTime > y->dwLowDateTime)
 821         return 1;
 822     if (x->dwLowDateTime < y->dwLowDateTime)
 823         return -1;
 824     return 0;
 825 }
 826
 827 /*********************************************************************
 828  *      GetLocalTime                                    (KERNEL32.@)
 829  *
 830  * Get the current local time.
 831  *
 832  * RETURNS
 833  *  Nothing.
 834  */
 835 VOID WINAPI GetLocalTime(LPSYSTEMTIME systime) /* [O] Destination for current time */
 836 {
 837     FILETIME lft;
 838     LARGE_INTEGER ft, ft2;
 839
 840     NtQuerySystemTime(&ft);
 841     RtlSystemTimeToLocalTime(&ft, &ft2);
 842     lft.dwLowDateTime = ft2.s.LowPart;
 843     lft.dwHighDateTime = ft2.s.HighPart;
 844     FileTimeToSystemTime(&lft, systime);
 845 }
 846
 847 /*********************************************************************
 848  *      GetSystemTime                                   (KERNEL32.@)
 849  *
 850  * Get the current system time.
 851  *
 852  * RETURNS
 853  *  Nothing.
 854  */
 855 VOID WINAPI GetSystemTime(LPSYSTEMTIME systime) /* [O] Destination for current time */
 856 {
 857     FILETIME ft;
 858     LARGE_INTEGER t;
 859
 860     NtQuerySystemTime(&t);
 861     ft.dwLowDateTime = t.s.LowPart;
 862     ft.dwHighDateTime = t.s.HighPart;
 863     FileTimeToSystemTime(&ft, systime);
 864 }