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 "kernel_private.h"
  43 #include "wine/unicode.h"
  44 #include "wine/debug.h"
  45
  46 WINE_DEFAULT_DEBUG_CHANNEL(win32);
  47
  48 /* maximum time adjustment in seconds for SetLocalTime and SetSystemTime */
  49 #define SETTIME_MAX_ADJUST 120
  50 #define CALINFO_MAX_YEAR 2029
  51
  52
  53 /***********************************************************************
  54  *              SetLocalTime            (KERNEL32.@)
  55  *
  56  *  Set the local time using current time zone and daylight
  57  *  savings settings.
  58  *
  59  * RETURNS
  60  *  Success: TRUE. The time was set
  61  *  Failure: FALSE, if the time was invalid or caller does not have
  62  *           permission to change the time.
  63  */
  64 BOOL WINAPI SetLocalTime(
  65     const SYSTEMTIME *systime) /* [in] The desired local time. */
  66 {
  67     FILETIME ft;
  68     LARGE_INTEGER st, st2;
  69     NTSTATUS status;
  70
  71     SystemTimeToFileTime( systime, &ft );
  72     st.u.LowPart = ft.dwLowDateTime;
  73     st.u.HighPart = ft.dwHighDateTime;
  74     RtlLocalTimeToSystemTime( &st, &st2 );
  75
  76     if ((status = NtSetSystemTime(&st2, NULL)))
  77         SetLastError( RtlNtStatusToDosError(status) );
  78     return !status;
  79 }
  80
  81
  82 /***********************************************************************
  83  *           GetSystemTimeAdjustment     (KERNEL32.@)
  84  *
  85  *  Get the period between clock interrupts and the amount the clock
  86  *  is adjusted each interrupt so as to keep it in sync with an external source.
  87  *
  88  * RETURNS
  89  *  TRUE.
  90  *
  91  * BUGS
  92  *  Only the special case of disabled time adjustments is supported.
  93  */
  94 BOOL WINAPI GetSystemTimeAdjustment(
  95     PDWORD lpTimeAdjustment,         /* [out] The clock adjustment per interupt in 100's of nanoseconds. */
  96     PDWORD lpTimeIncrement,          /* [out] The time between clock interupts in 100's of nanoseconds. */
  97     PBOOL  lpTimeAdjustmentDisabled) /* [out] The clock synchonisation has been disabled. */
  98 {
  99     *lpTimeAdjustment = 0;
 100     *lpTimeIncrement = 0;
 101     *lpTimeAdjustmentDisabled = TRUE;
 102     return TRUE;
 103 }
 104
 105
 106 /***********************************************************************
 107  *              SetSystemTime            (KERNEL32.@)
 108  *
 109  *  Set the system time in utc.
 110  *
 111  * RETURNS
 112  *  Success: TRUE. The time was set
 113  *  Failure: FALSE, if the time was invalid or caller does not have
 114  *           permission to change the time.
 115  */
 116 BOOL WINAPI SetSystemTime(
 117     const SYSTEMTIME *systime) /* [in] The desired system time. */
 118 {
 119     FILETIME ft;
 120     LARGE_INTEGER t;
 121     NTSTATUS status;
 122
 123     SystemTimeToFileTime( systime, &ft );
 124     t.u.LowPart = ft.dwLowDateTime;
 125     t.u.HighPart = ft.dwHighDateTime;
 126     if ((status = NtSetSystemTime(&t, NULL)))
 127         SetLastError( RtlNtStatusToDosError(status) );
 128     return !status;
 129 }
 130
 131 /***********************************************************************
 132  *              SetSystemTimeAdjustment  (KERNEL32.@)
 133  *
 134  *  Enables or disables the timing adjustments to the system's clock.
 135  *
 136  * RETURNS
 137  *  Success: TRUE.
 138  *  Failure: FALSE.
 139  */
 140 BOOL WINAPI SetSystemTimeAdjustment(
 141     DWORD dwTimeAdjustment,
 142     BOOL bTimeAdjustmentDisabled)
 143 {
 144     /* Fake function for now... */
 145     FIXME("(%08lx,%d): stub !\n", dwTimeAdjustment, bTimeAdjustmentDisabled);
 146     return TRUE;
 147 }
 148
 149
 150 /***********************************************************************
 151  *              GetTimeZoneInformation  (KERNEL32.@)
 152  *
 153  *  Get information about the current local time zone.
 154  *
 155  * RETURNS
 156  *  Success: TIME_ZONE_ID_STANDARD. tzinfo contains the time zone info.
 157  *  Failure: TIME_ZONE_ID_INVALID.
 158  */
 159 DWORD WINAPI GetTimeZoneInformation(
 160     LPTIME_ZONE_INFORMATION tzinfo) /* [out] Destination for time zone information */
 161 {
 162     NTSTATUS status;
 163     if ((status = RtlQueryTimeZoneInformation(tzinfo)))
 164         SetLastError( RtlNtStatusToDosError(status) );
 165     return TIME_ZONE_ID_STANDARD;
 166 }
 167
 168
 169 /***********************************************************************
 170  *              SetTimeZoneInformation  (KERNEL32.@)
 171  *
 172  *  Change the settings of the current local time zone.
 173  *
 174  * RETURNS
 175  *  Success: TRUE. The time zone was updated with the settings from tzinfo
 176  *  Failure: FALSE.
 177  */
 178 BOOL WINAPI SetTimeZoneInformation(
 179     const LPTIME_ZONE_INFORMATION tzinfo) /* [in] The new time zone. */
 180 {
 181     NTSTATUS status;
 182     if ((status = RtlSetTimeZoneInformation(tzinfo)))
 183         SetLastError( RtlNtStatusToDosError(status) );
 184     return !status;
 185 }
 186
 187
 188 /***********************************************************************
 189  *  _DayLightCompareDate
 190  *
 191  *  Compares two dates without looking at the year
 192  *
 193  * RETURNS
 194  *
 195  *  -1 if date < compareDate
 196  *   0 if date == compareDate
 197  *   1 if date > compareDate
 198  *  -2 if an error occures
 199  */
 200
 201 static int _DayLightCompareDate(
 202     const LPSYSTEMTIME date,                       /* [in] The date to compare. */
 203     const LPSYSTEMTIME compareDate)                /* [in] The daylight saving begin or end date */
 204 {
 205     int limit_day;
 206
 207     if (compareDate->wYear != 0)
 208     {
 209         if (date->wMonth < compareDate->wMonth)
 210             return -1; /* We are in a year before the date limit. */
 211
 212         if (date->wMonth > compareDate->wMonth)
 213             return 1; /* We are in a year after the date limit. */
 214     }
 215
 216     if (date->wMonth < compareDate->wMonth)
 217         return -1; /* We are in a month before the date limit. */
 218
 219     if (date->wMonth > compareDate->wMonth)
 220         return 1; /* We are in a month after the date limit. */
 221
 222     if (compareDate->wDayOfWeek <= 6)
 223     {
 224        SYSTEMTIME tmp;
 225        FILETIME tmp_ft;
 226
 227        /* compareDate->wDay is interpreted as number of the week in the month. */
 228        /* 5 means: the last week in the month */
 229        int weekofmonth = compareDate->wDay;
 230
 231          /* calculate day of week for the first day in the month */
 232         memcpy(&tmp, date, sizeof(SYSTEMTIME));
 233         tmp.wDay = 1;
 234         tmp.wDayOfWeek = -1;
 235
 236         if (weekofmonth == 5)
 237         {
 238              /* Go to the beginning of the next month. */
 239             if (++tmp.wMonth > 12)
 240             {
 241                 tmp.wMonth = 1;
 242                 ++tmp.wYear;
 243             }
 244         }
 245
 246         if (!SystemTimeToFileTime(&tmp, &tmp_ft))
 247             return -2;
 248
 249         if (weekofmonth == 5)
 250         {
 251           LONGLONG t, one_day;
 252
 253           t = tmp_ft.dwHighDateTime;
 254           t <<= 32;
 255           t += (UINT)tmp_ft.dwLowDateTime;
 256
 257           /* subtract one day */
 258           one_day = 24*60*60;
 259           one_day *= 10000000;
 260           t -= one_day;
 261
 262           tmp_ft.dwLowDateTime  = (UINT)t;
 263           tmp_ft.dwHighDateTime = (UINT)(t >> 32);
 264         }
 265
 266         if (!FileTimeToSystemTime(&tmp_ft, &tmp))
 267             return -2;
 268
 269        if (weekofmonth == 5)
 270        {
 271           /* calculate the last matching day of the week in this month */
 272           int dif = tmp.wDayOfWeek - compareDate->wDayOfWeek;
 273           if (dif < 0)
 274              dif += 7;
 275
 276           limit_day = tmp.wDay - dif;
 277        }
 278        else
 279        {
 280           /* calculate the matching day of the week in the given week */
 281           int dif = compareDate->wDayOfWeek - tmp.wDayOfWeek;
 282           if (dif < 0)
 283              dif += 7;
 284
 285           limit_day = tmp.wDay + 7*(weekofmonth-1) + dif;
 286        }
 287     }
 288     else
 289     {
 290        limit_day = compareDate->wDay;
 291     }
 292
 293     if (date->wDay < limit_day)
 294         return -1;
 295
 296     if (date->wDay > limit_day)
 297         return 1;
 298
 299     return 0;   /* date is equal to the date limit. */
 300 }
 301
 302
 303 /***********************************************************************
 304  *  _GetTimezoneBias
 305  *
 306  *  Calculates the local time bias for a given time zone
 307  *
 308  * RETURNS
 309  *
 310  *  Returns TRUE when the time zone bias was calculated.
 311  */
 312
 313 static BOOL _GetTimezoneBias(
 314     const LPTIME_ZONE_INFORMATION lpTimeZoneInformation, /* [in] The time zone data.            */
 315     LPSYSTEMTIME                  lpSystemTime,          /* [in] The system time.               */
 316     LONG*                         pBias)                 /* [out] The calulated bias in minutes */
 317 {
 318     int ret;
 319     BOOL beforeStandardDate, afterDaylightDate;
 320     BOOL daylightsaving = FALSE;
 321     LONG bias = lpTimeZoneInformation->Bias;
 322
 323     if (lpTimeZoneInformation->DaylightDate.wMonth != 0)
 324     {
 325         if (lpTimeZoneInformation->StandardDate.wMonth == 0 ||
 326             lpTimeZoneInformation->StandardDate.wDay<1 ||
 327             lpTimeZoneInformation->StandardDate.wDay>5 ||
 328             lpTimeZoneInformation->DaylightDate.wDay<1 ||
 329             lpTimeZoneInformation->DaylightDate.wDay>5)
 330         {
 331             SetLastError(ERROR_INVALID_PARAMETER);
 332             return FALSE;
 333         }
 334
 335          /* check for daylight saving */
 336         ret = _DayLightCompareDate(lpSystemTime, &lpTimeZoneInformation->StandardDate);
 337         if (ret == -2)
 338           return FALSE;
 339
 340         beforeStandardDate = ret < 0;
 341
 342         ret = _DayLightCompareDate(lpSystemTime, &lpTimeZoneInformation->DaylightDate);
 343         if (ret == -2)
 344           return FALSE;
 345
 346         afterDaylightDate = ret >= 0;
 347
 348         if (beforeStandardDate && afterDaylightDate)
 349             daylightsaving = TRUE;
 350     }
 351
 352     if (daylightsaving)
 353         bias += lpTimeZoneInformation->DaylightBias;
 354     else if (lpTimeZoneInformation->StandardDate.wMonth != 0)
 355         bias += lpTimeZoneInformation->StandardBias;
 356
 357     *pBias = bias;
 358
 359     return TRUE;
 360 }
 361
 362
 363 /***********************************************************************
 364  *              SystemTimeToTzSpecificLocalTime  (KERNEL32.@)
 365  *
 366  *  Convert a utc system time to a local time in a given time zone.
 367  *
 368  * RETURNS
 369  *  Success: TRUE. lpLocalTime contains the converted time
 370  *  Failure: FALSE.
 371  */
 372
 373 BOOL WINAPI SystemTimeToTzSpecificLocalTime(
 374     LPTIME_ZONE_INFORMATION lpTimeZoneInformation, /* [in] The desired time zone. */
 375     LPSYSTEMTIME            lpUniversalTime,       /* [in] The utc time to base local time on. */
 376     LPSYSTEMTIME            lpLocalTime)           /* [out] The local time in the time zone. */
 377 {
 378     FILETIME ft;
 379     LONG lBias;
 380     LONGLONG t, bias;
 381     TIME_ZONE_INFORMATION tzinfo;
 382
 383     if (lpTimeZoneInformation != NULL)
 384     {
 385         memcpy(&tzinfo, lpTimeZoneInformation, sizeof(TIME_ZONE_INFORMATION));
 386     }
 387     else
 388     {
 389         if (GetTimeZoneInformation(&tzinfo) == TIME_ZONE_ID_INVALID)
 390             return FALSE;
 391     }
 392
 393     if (!SystemTimeToFileTime(lpUniversalTime, &ft))
 394         return FALSE;
 395
 396     t = ft.dwHighDateTime;
 397     t <<= 32;
 398     t += (UINT)ft.dwLowDateTime;
 399
 400     if (!_GetTimezoneBias(&tzinfo, lpUniversalTime, &lBias))
 401         return FALSE;
 402
 403     bias = (LONGLONG)lBias * 600000000; /* 60 seconds per minute, 100000 [100-nanoseconds-ticks] per second */
 404     t -= bias;
 405
 406     ft.dwLowDateTime  = (UINT)t;
 407     ft.dwHighDateTime = (UINT)(t >> 32);
 408
 409     return FileTimeToSystemTime(&ft, lpLocalTime);
 410 }
 411
 412
 413 /***********************************************************************
 414  *              TzSpecificLocalTimeToSystemTime  (KERNEL32.@)
 415  *
 416  *  Converts a local time to a time in utc.
 417  *
 418  * RETURNS
 419  *  Success: TRUE. lpUniversalTime contains the converted time
 420  *  Failure: FALSE.
 421  */
 422 BOOL WINAPI TzSpecificLocalTimeToSystemTime(
 423     LPTIME_ZONE_INFORMATION lpTimeZoneInformation, /* [in] The desired time zone. */
 424     LPSYSTEMTIME            lpLocalTime,           /* [in] The local time. */
 425     LPSYSTEMTIME            lpUniversalTime)       /* [out] The calculated utc time. */
 426 {
 427     FILETIME ft;
 428     LONG lBias;
 429     LONGLONG t, bias;
 430     TIME_ZONE_INFORMATION tzinfo;
 431
 432     if (lpTimeZoneInformation != NULL)
 433     {
 434         memcpy(&tzinfo, lpTimeZoneInformation, sizeof(TIME_ZONE_INFORMATION));
 435     }
 436     else
 437     {
 438         if (GetTimeZoneInformation(&tzinfo) == TIME_ZONE_ID_INVALID)
 439             return FALSE;
 440     }
 441
 442     if (!SystemTimeToFileTime(lpLocalTime, &ft))
 443         return FALSE;
 444
 445     t = ft.dwHighDateTime;
 446     t <<= 32;
 447     t += (UINT)ft.dwLowDateTime;
 448
 449     if (!_GetTimezoneBias(&tzinfo, lpLocalTime, &lBias))
 450         return FALSE;
 451
 452     bias = (LONGLONG)lBias * 600000000; /* 60 seconds per minute, 100000 [100-nanoseconds-ticks] per second */
 453     t += bias;
 454
 455     ft.dwLowDateTime  = (UINT)t;
 456     ft.dwHighDateTime = (UINT)(t >> 32);
 457
 458     return FileTimeToSystemTime(&ft, lpUniversalTime);
 459 }
 460
 461
 462 /***********************************************************************
 463  *              GetSystemTimeAsFileTime  (KERNEL32.@)
 464  *
 465  *  Get the current time in utc format.
 466  *
 467  *  RETURNS
 468  *   Nothing.
 469  */
 470 VOID WINAPI GetSystemTimeAsFileTime(
 471     LPFILETIME time) /* [out] Destination for the current utc time */
 472 {
 473     LARGE_INTEGER t;
 474     NtQuerySystemTime( &t );
 475     time->dwLowDateTime = t.u.LowPart;
 476     time->dwHighDateTime = t.u.HighPart;
 477 }
 478
 479
 480 /*********************************************************************
 481  *      TIME_ClockTimeToFileTime    (olorin@fandra.org, 20-Sep-1998)
 482  *
 483  *  Used by GetProcessTimes to convert clock_t into FILETIME.
 484  *
 485  *      Differences to UnixTimeToFileTime:
 486  *          1) Divided by CLK_TCK
 487  *          2) Time is relative. There is no 'starting date', so there is
 488  *             no need for offset correction, like in UnixTimeToFileTime
 489  */
 490 static void TIME_ClockTimeToFileTime(clock_t unix_time, LPFILETIME filetime)
 491 {
 492     ULONGLONG secs = RtlEnlargedUnsignedMultiply( unix_time, 10000000 );
 493     secs = RtlExtendedLargeIntegerDivide( secs, CLK_TCK, NULL );
 494     filetime->dwLowDateTime  = (DWORD)secs;
 495     filetime->dwHighDateTime = (DWORD)(secs >> 32);
 496 }
 497
 498 /*********************************************************************
 499  *      GetProcessTimes                         (KERNEL32.@)
 500  *
 501  *  Get the user and kernel execution times of a process,
 502  *  along with the creation and exit times if known.
 503  *
 504  * RETURNS
 505  *  TRUE.
 506  *
 507  * NOTES
 508  *  olorin@fandra.org:
 509  *  Would be nice to subtract the cpu time used by Wine at startup.
 510  *  Also, there is a need to separate times used by different applications.
 511  *
 512  * BUGS
 513  *  lpCreationTime and lpExitTime are not initialised in the Wine implementation.
 514  */
 515 BOOL WINAPI GetProcessTimes(
 516     HANDLE     hprocess,       /* [in] The process to be queried (obtained from PROCESS_QUERY_INFORMATION). */
 517     LPFILETIME lpCreationTime, /* [out] The creation time of the process. */
 518     LPFILETIME lpExitTime,     /* [out] The exit time of the process if exited. */
 519     LPFILETIME lpKernelTime,   /* [out] The time spent in kernal routines in 100's of nanoseconds. */
 520     LPFILETIME lpUserTime)     /* [out] The time spent in user routines in 100's of nanoseconds. */
 521 {
 522     struct tms tms;
 523
 524     times(&tms);
 525     TIME_ClockTimeToFileTime(tms.tms_utime,lpUserTime);
 526     TIME_ClockTimeToFileTime(tms.tms_stime,lpKernelTime);
 527     return TRUE;
 528 }
 529
 530 /*********************************************************************
 531  *      GetCalendarInfoA                                (KERNEL32.@)
 532  *
 533  */
 534 int WINAPI GetCalendarInfoA(LCID lcid, CALID Calendar, CALTYPE CalType,
 535                             LPSTR lpCalData, int cchData, LPDWORD lpValue)
 536 {
 537     int ret;
 538     LPWSTR lpCalDataW = NULL;
 539
 540     FIXME("(%08lx,%08lx,%08lx,%p,%d,%p): quarter-stub\n",
 541           lcid, Calendar, CalType, lpCalData, cchData, lpValue);
 542
 543     lcid = ConvertDefaultLocale(lcid);
 544
 545     if (NLS_IsUnicodeOnlyLcid(lcid))
 546     {
 547       SetLastError(ERROR_INVALID_PARAMETER);
 548       return 0;
 549     }
 550
 551     if (cchData &&
 552         !(lpCalDataW = HeapAlloc(GetProcessHeap(), 0, cchData*sizeof(WCHAR))))
 553       return 0;
 554
 555     ret = GetCalendarInfoW(lcid, Calendar, CalType, lpCalDataW, cchData, lpValue);
 556     if(ret && lpCalDataW && lpCalData)
 557       WideCharToMultiByte(CP_ACP, 0, lpCalDataW, cchData, lpCalData, cchData, NULL, NULL);
 558     if(lpCalDataW)
 559       HeapFree(GetProcessHeap(), 0, lpCalDataW);
 560
 561     return ret;
 562 }
 563
 564 /*********************************************************************
 565  *      GetCalendarInfoW                                (KERNEL32.@)
 566  *
 567  * See GetCalendarInfoA.
 568  */
 569 int WINAPI GetCalendarInfoW(LCID Locale, CALID Calendar, CALTYPE CalType,
 570                             LPWSTR lpCalData, int cchData, LPDWORD lpValue)
 571 {
 572     FIXME("(%08lx,%08lx,%08lx,%p,%d,%p): quarter-stub\n",
 573           Locale, Calendar, CalType, lpCalData, cchData, lpValue);
 574
 575     if (CalType & CAL_NOUSEROVERRIDE)
 576         FIXME("flag CAL_NOUSEROVERRIDE used, not fully implemented\n");
 577     if (CalType & CAL_USE_CP_ACP)
 578         FIXME("flag CAL_USE_CP_ACP used, not fully implemented\n");
 579
 580     if (CalType & CAL_RETURN_NUMBER) {
 581         if (lpCalData != NULL)
 582             WARN("lpCalData not NULL (%p) when it should!\n", lpCalData);
 583         if (cchData != 0)
 584             WARN("cchData not 0 (%d) when it should!\n", cchData);
 585     } else {
 586         if (lpValue != NULL)
 587             WARN("lpValue not NULL (%p) when it should!\n", lpValue);
 588     }
 589
 590     /* FIXME: No verification is made yet wrt Locale
 591      * for the CALTYPES not requiring GetLocaleInfoA */
 592     switch (CalType & ~(CAL_NOUSEROVERRIDE|CAL_RETURN_NUMBER|CAL_USE_CP_ACP)) {
 593         case CAL_ICALINTVALUE:
 594             FIXME("Unimplemented caltype %ld\n", CalType & 0xffff);
 595             return E_FAIL;
 596         case CAL_SCALNAME:
 597             FIXME("Unimplemented caltype %ld\n", CalType & 0xffff);
 598             return E_FAIL;
 599         case CAL_IYEAROFFSETRANGE:
 600             FIXME("Unimplemented caltype %ld\n", CalType & 0xffff);
 601             return E_FAIL;
 602         case CAL_SERASTRING:
 603             FIXME("Unimplemented caltype %ld\n", CalType & 0xffff);
 604             return E_FAIL;
 605         case CAL_SSHORTDATE:
 606             return GetLocaleInfoW(Locale, LOCALE_SSHORTDATE, lpCalData, cchData);
 607         case CAL_SLONGDATE:
 608             return GetLocaleInfoW(Locale, LOCALE_SLONGDATE, lpCalData, cchData);
 609         case CAL_SDAYNAME1:
 610             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME1, lpCalData, cchData);
 611         case CAL_SDAYNAME2:
 612             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME2, lpCalData, cchData);
 613         case CAL_SDAYNAME3:
 614             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME3, lpCalData, cchData);
 615         case CAL_SDAYNAME4:
 616             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME4, lpCalData, cchData);
 617         case CAL_SDAYNAME5:
 618             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME5, lpCalData, cchData);
 619         case CAL_SDAYNAME6:
 620             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME6, lpCalData, cchData);
 621         case CAL_SDAYNAME7:
 622             return GetLocaleInfoW(Locale, LOCALE_SDAYNAME7, lpCalData, cchData);
 623         case CAL_SABBREVDAYNAME1:
 624             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME1, lpCalData, cchData);
 625         case CAL_SABBREVDAYNAME2:
 626             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME2, lpCalData, cchData);
 627         case CAL_SABBREVDAYNAME3:
 628             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME3, lpCalData, cchData);
 629         case CAL_SABBREVDAYNAME4:
 630             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME4, lpCalData, cchData);
 631         case CAL_SABBREVDAYNAME5:
 632             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME5, lpCalData, cchData);
 633         case CAL_SABBREVDAYNAME6:
 634             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME6, lpCalData, cchData);
 635         case CAL_SABBREVDAYNAME7:
 636             return GetLocaleInfoW(Locale, LOCALE_SABBREVDAYNAME7, lpCalData, cchData);
 637         case CAL_SMONTHNAME1:
 638             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME1, lpCalData, cchData);
 639         case CAL_SMONTHNAME2:
 640             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME2, lpCalData, cchData);
 641         case CAL_SMONTHNAME3:
 642             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME3, lpCalData, cchData);
 643         case CAL_SMONTHNAME4:
 644             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME4, lpCalData, cchData);
 645         case CAL_SMONTHNAME5:
 646             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME5, lpCalData, cchData);
 647         case CAL_SMONTHNAME6:
 648             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME6, lpCalData, cchData);
 649         case CAL_SMONTHNAME7:
 650             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME7, lpCalData, cchData);
 651         case CAL_SMONTHNAME8:
 652             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME8, lpCalData, cchData);
 653         case CAL_SMONTHNAME9:
 654             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME9, lpCalData, cchData);
 655         case CAL_SMONTHNAME10:
 656             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME10, lpCalData, cchData);
 657         case CAL_SMONTHNAME11:
 658             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME11, lpCalData, cchData);
 659         case CAL_SMONTHNAME12:
 660             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME12, lpCalData, cchData);
 661         case CAL_SMONTHNAME13:
 662             return GetLocaleInfoW(Locale, LOCALE_SMONTHNAME13, lpCalData, cchData);
 663         case CAL_SABBREVMONTHNAME1:
 664             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME1, lpCalData, cchData);
 665         case CAL_SABBREVMONTHNAME2:
 666             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME2, lpCalData, cchData);
 667         case CAL_SABBREVMONTHNAME3:
 668             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME3, lpCalData, cchData);
 669         case CAL_SABBREVMONTHNAME4:
 670             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME4, lpCalData, cchData);
 671         case CAL_SABBREVMONTHNAME5:
 672             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME5, lpCalData, cchData);
 673         case CAL_SABBREVMONTHNAME6:
 674             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME6, lpCalData, cchData);
 675         case CAL_SABBREVMONTHNAME7:
 676             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME7, lpCalData, cchData);
 677         case CAL_SABBREVMONTHNAME8:
 678             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME8, lpCalData, cchData);
 679         case CAL_SABBREVMONTHNAME9:
 680             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME9, lpCalData, cchData);
 681         case CAL_SABBREVMONTHNAME10:
 682             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME10, lpCalData, cchData);
 683         case CAL_SABBREVMONTHNAME11:
 684             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME11, lpCalData, cchData);
 685         case CAL_SABBREVMONTHNAME12:
 686             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME12, lpCalData, cchData);
 687         case CAL_SABBREVMONTHNAME13:
 688             return GetLocaleInfoW(Locale, LOCALE_SABBREVMONTHNAME13, lpCalData, cchData);
 689         case CAL_SYEARMONTH:
 690             return GetLocaleInfoW(Locale, LOCALE_SYEARMONTH, lpCalData, cchData);
 691         case CAL_ITWODIGITYEARMAX:
 692             if (lpValue) *lpValue = CALINFO_MAX_YEAR;
 693             break;
 694         default: MESSAGE("Unknown caltype %ld\n",CalType & 0xffff);
 695                  return E_FAIL;
 696     }
 697     return 0;
 698 }
 699
 700 /*********************************************************************
 701  *      SetCalendarInfoA                                (KERNEL32.@)
 702  *
 703  */
 704 int WINAPI      SetCalendarInfoA(LCID Locale, CALID Calendar, CALTYPE CalType, LPCSTR lpCalData)
 705 {
 706     FIXME("(%08lx,%08lx,%08lx,%s): stub\n",
 707           Locale, Calendar, CalType, debugstr_a(lpCalData));
 708     return 0;
 709 }
 710
 711 /*********************************************************************
 712  *      SetCalendarInfoW                                (KERNEL32.@)
 713  *
 714  * See SetCalendarInfoA.
 715  */
 716 int WINAPI      SetCalendarInfoW(LCID Locale, CALID Calendar, CALTYPE CalType, LPCWSTR lpCalData)
 717 {
 718     FIXME("(%08lx,%08lx,%08lx,%s): stub\n",
 719           Locale, Calendar, CalType, debugstr_w(lpCalData));
 720     return 0;
 721 }
 722
 723 /*********************************************************************
 724  *      LocalFileTimeToFileTime                         (KERNEL32.@)
 725  */
 726 BOOL WINAPI LocalFileTimeToFileTime( const FILETIME *localft, LPFILETIME utcft )
 727 {
 728     NTSTATUS status;
 729     LARGE_INTEGER local, utc;
 730
 731     local.u.LowPart = localft->dwLowDateTime;
 732     local.u.HighPart = localft->dwHighDateTime;
 733     if (!(status = RtlLocalTimeToSystemTime( &local, &utc )))
 734     {
 735         utcft->dwLowDateTime = utc.u.LowPart;
 736         utcft->dwHighDateTime = utc.u.HighPart;
 737     }
 738     else SetLastError( RtlNtStatusToDosError(status) );
 739
 740     return !status;
 741 }
 742
 743 /*********************************************************************
 744  *      FileTimeToLocalFileTime                         (KERNEL32.@)
 745  */
 746 BOOL WINAPI FileTimeToLocalFileTime( const FILETIME *utcft, LPFILETIME localft )
 747 {
 748     NTSTATUS status;
 749     LARGE_INTEGER local, utc;
 750
 751     utc.u.LowPart = utcft->dwLowDateTime;
 752     utc.u.HighPart = utcft->dwHighDateTime;
 753     if (!(status = RtlSystemTimeToLocalTime( &utc, &local )))
 754     {
 755         localft->dwLowDateTime = local.u.LowPart;
 756         localft->dwHighDateTime = local.u.HighPart;
 757     }
 758     else SetLastError( RtlNtStatusToDosError(status) );
 759
 760     return !status;
 761 }
 762
 763 /*********************************************************************
 764  *      FileTimeToSystemTime                            (KERNEL32.@)
 765  */
 766 BOOL WINAPI FileTimeToSystemTime( const FILETIME *ft, LPSYSTEMTIME syst )
 767 {
 768     TIME_FIELDS tf;
 769     LARGE_INTEGER t;
 770
 771     t.u.LowPart = ft->dwLowDateTime;
 772     t.u.HighPart = ft->dwHighDateTime;
 773     RtlTimeToTimeFields(&t, &tf);
 774
 775     syst->wYear = tf.Year;
 776     syst->wMonth = tf.Month;
 777     syst->wDay = tf.Day;
 778     syst->wHour = tf.Hour;
 779     syst->wMinute = tf.Minute;
 780     syst->wSecond = tf.Second;
 781     syst->wMilliseconds = tf.Milliseconds;
 782     syst->wDayOfWeek = tf.Weekday;
 783     return TRUE;
 784 }
 785
 786 /*********************************************************************
 787  *      SystemTimeToFileTime                            (KERNEL32.@)
 788  */
 789 BOOL WINAPI SystemTimeToFileTime( const SYSTEMTIME *syst, LPFILETIME ft )
 790 {
 791     TIME_FIELDS tf;
 792     LARGE_INTEGER t;
 793
 794     tf.Year = syst->wYear;
 795     tf.Month = syst->wMonth;
 796     tf.Day = syst->wDay;
 797     tf.Hour = syst->wHour;
 798     tf.Minute = syst->wMinute;
 799     tf.Second = syst->wSecond;
 800     tf.Milliseconds = syst->wMilliseconds;
 801
 802     RtlTimeFieldsToTime(&tf, &t);
 803     ft->dwLowDateTime = t.u.LowPart;
 804     ft->dwHighDateTime = t.u.HighPart;
 805     return TRUE;
 806 }
 807
 808 /*********************************************************************
 809  *      CompareFileTime                                 (KERNEL32.@)
 810  *
 811  * Compare two FILETIME's to each other.
 812  *
 813  * PARAMS
 814  *  x [I] First time
 815  *  y [I] time to compare to x
 816  *
 817  * RETURNS
 818  *  -1, 0, or 1 indicating that x is less than, equal to, or greater
 819  *  than y respectively.
 820  */
 821 INT WINAPI CompareFileTime( const FILETIME *x, const FILETIME *y )
 822 {
 823     if (!x || !y) return -1;
 824
 825     if (x->dwHighDateTime > y->dwHighDateTime)
 826         return 1;
 827     if (x->dwHighDateTime < y->dwHighDateTime)
 828         return -1;
 829     if (x->dwLowDateTime > y->dwLowDateTime)
 830         return 1;
 831     if (x->dwLowDateTime < y->dwLowDateTime)
 832         return -1;
 833     return 0;
 834 }
 835
 836 /*********************************************************************
 837  *      GetLocalTime                                    (KERNEL32.@)
 838  *
 839  * Get the current local time.
 840  *
 841  * RETURNS
 842  *  Nothing.
 843  */
 844 VOID WINAPI GetLocalTime(LPSYSTEMTIME systime) /* [O] Destination for current time */
 845 {
 846     FILETIME lft;
 847     LARGE_INTEGER ft, ft2;
 848
 849     NtQuerySystemTime(&ft);
 850     RtlSystemTimeToLocalTime(&ft, &ft2);
 851     lft.dwLowDateTime = ft2.u.LowPart;
 852     lft.dwHighDateTime = ft2.u.HighPart;
 853     FileTimeToSystemTime(&lft, systime);
 854 }
 855
 856 /*********************************************************************
 857  *      GetSystemTime                                   (KERNEL32.@)
 858  *
 859  * Get the current system time.
 860  *
 861  * RETURNS
 862  *  Nothing.
 863  */
 864 VOID WINAPI GetSystemTime(LPSYSTEMTIME systime) /* [O] Destination for current time */
 865 {
 866     FILETIME ft;
 867     LARGE_INTEGER t;
 868
 869     NtQuerySystemTime(&t);
 870     ft.dwLowDateTime = t.u.LowPart;
 871     ft.dwHighDateTime = t.u.HighPart;
 872     FileTimeToSystemTime(&ft, systime);
 873 }