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