text: /*
   * msvcrt.dll date/time functions
   *
   * Copyright 1996,1998 Marcus Meissner
   * Copyright 1996 Jukka Iivonen
   * Copyright 1997,2000 Uwe Bonnes
   * Copyright 2000 Jon Griffiths
   * Copyright 2004 Hans Leidekker
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
   */
  
  #include "config.h"
  
  #include <stdlib.h>
  
  #include "msvcrt.h"
  #include "mtdll.h"
  #include "winbase.h"
  #include "winnls.h"
  #include "winternl.h"
  #include "wine/debug.h"
  #include "wine/unicode.h"
  
  WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  
  static const int MonthLengths[2][12] =
  {
      { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
      { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
  };
  
  static inline BOOL IsLeapYear(int Year)
  {
      return Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0);
  }
  
  static inline void write_invalid_msvcrt_tm( struct MSVCRT_tm *tm )
  {
      tm->tm_sec = -1;
      tm->tm_min = -1;
      tm->tm_hour = -1;
      tm->tm_mday = -1;
      tm->tm_mon = -1;
      tm->tm_year = -1;
      tm->tm_wday = -1;
      tm->tm_yday = -1;
      tm->tm_isdst = -1;
  }
  
  /*********************************************************************
   *		_daylight (MSVCRT.@)
   */
  int MSVCRT___daylight = 1;
  
  /*********************************************************************
   *		_timezone (MSVCRT.@)
   */
  MSVCRT_long MSVCRT___timezone = 28800;
  
  /*********************************************************************
   *		_dstbias (MSVCRT.@)
   */
  int MSVCRT__dstbias = -3600;
  
  /*********************************************************************
   *		_tzname (MSVCRT.@)
   * NOTES
   *  Some apps (notably Mozilla) insist on writing to these, so the buffer
   *  must be large enough.
   */
  static char tzname_std[64] = "PST";
  static char tzname_dst[64] = "PDT";
  char *MSVCRT__tzname[2] = { tzname_std, tzname_dst };
  
  static TIME_ZONE_INFORMATION tzi = {0};
  /*********************************************************************
   *		_tzset (MSVCRT.@)
   */
  void CDECL MSVCRT__tzset(void)
  {
      char *tz = MSVCRT_getenv("TZ");
      BOOL error;
  
      _mlock(_TIME_LOCK);
      if(tz && tz[0]) {
          BOOL neg_zone = FALSE;
  
          memset(&tzi, 0, sizeof(tzi));
  
          /* Parse timezone information: tzn[+|-]hh[:mm[:ss]][dzn] */
          lstrcpynA(MSVCRT__tzname[0], tz, 3);
          tz += 3;
  
          if(*tz == '-') {
              neg_zone = TRUE;
              tz++;
          }else if(*tz == '+') {
              tz++;
          }
          MSVCRT___timezone = strtol(tz, &tz, 10)*3600;
          if(*tz == ':') {
              MSVCRT___timezone += strtol(tz+1, &tz, 10)*60;
              if(*tz == ':')
                  MSVCRT___timezone += strtol(tz+1, &tz, 10);
          }
          if(neg_zone)
              MSVCRT___timezone = -MSVCRT___timezone;
  
          MSVCRT___daylight = *tz;
          lstrcpynA(MSVCRT__tzname[1], tz, 3);
      }else if(GetTimeZoneInformation(&tzi) != TIME_ZONE_ID_INVALID) {
          MSVCRT___timezone = tzi.Bias*60;
          if(tzi.StandardDate.wMonth)
              MSVCRT___timezone += tzi.StandardBias*60;
  
          if(tzi.DaylightDate.wMonth) {
              MSVCRT___daylight = 1;
              MSVCRT__dstbias = (tzi.DaylightBias-tzi.StandardBias)*60;
          }else {
              MSVCRT___daylight = 0;
              MSVCRT__dstbias = 0;
          }
  
          if(!WideCharToMultiByte(CP_ACP, 0, tzi.StandardName, -1, MSVCRT__tzname[0],
                      sizeof(tzname_std), NULL, &error) || error)
              *MSVCRT__tzname[0] = 0;
          if(!WideCharToMultiByte(CP_ACP, 0, tzi.DaylightName, -1, MSVCRT__tzname[1],
                      sizeof(tzname_dst), NULL, &error) || error)
              *MSVCRT__tzname[0] = 0;
      }
      _munlock(_TIME_LOCK);
  }
  
  static void _tzset_init(void)
  {
      static BOOL init = FALSE;
  
      if(!init) {
          _mlock(_TIME_LOCK);
          if(!init) {
              MSVCRT__tzset();
              init = TRUE;
          }
          _munlock(_TIME_LOCK);
      }
  }
  
  static BOOL is_dst(const SYSTEMTIME *st)
  {
      TIME_ZONE_INFORMATION tmp;
      SYSTEMTIME out;
  
      if(!MSVCRT___daylight)
          return FALSE;
  
      if(tzi.DaylightDate.wMonth) {
          tmp = tzi;
      }else if(st->wYear >= 2007) {
          memset(&tmp, 0, sizeof(tmp));
          tmp.StandardDate.wMonth = 11;
          tmp.StandardDate.wDay = 1;
          tmp.StandardDate.wHour = 2;
          tmp.DaylightDate.wMonth = 3;
          tmp.DaylightDate.wDay = 2;
          tmp.DaylightDate.wHour = 2;
      }else {
          memset(&tmp, 0, sizeof(tmp));
          tmp.StandardDate.wMonth = 10;
          tmp.StandardDate.wDay = 5;
          tmp.StandardDate.wHour = 2;
          tmp.DaylightDate.wMonth = 4;
          tmp.DaylightDate.wDay = 1;
          tmp.DaylightDate.wHour = 2;
      }
  
      tmp.Bias = 0;
      tmp.StandardBias = 0;
      tmp.DaylightBias = MSVCRT__dstbias/60;
      if(!SystemTimeToTzSpecificLocalTime(&tmp, st, &out))
          return FALSE;
  
      return memcmp(st, &out, sizeof(SYSTEMTIME));
  }
  
  #define SECSPERDAY        86400
  /* 1601 to 1970 is 369 years plus 89 leap days */
  #define SECS_1601_TO_1970  ((369 * 365 + 89) * (ULONGLONG)SECSPERDAY)
  #define TICKSPERSEC       10000000
  #define TICKSPERMSEC      10000
  #define TICKS_1601_TO_1970 (SECS_1601_TO_1970 * TICKSPERSEC)
  
  static MSVCRT___time64_t mktime_helper(struct MSVCRT_tm *mstm, BOOL local)
  {
      SYSTEMTIME st;
      FILETIME ft;
      MSVCRT___time64_t ret = 0;
      int i;
      BOOL use_dst = FALSE;
  
      ret = mstm->tm_year + mstm->tm_mon/12;
      mstm->tm_mon %= 12;
      if(mstm->tm_mon < 0) {
          mstm->tm_mon += 12;
          ret--;
      }
  
      if(ret<70 || ret>1100) {
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return -1;
      }
  
      memset(&st, 0, sizeof(SYSTEMTIME));
      st.wDay = 1;
      st.wMonth = mstm->tm_mon+1;
      st.wYear = ret+1900;
  
      if(!SystemTimeToFileTime(&st, &ft)) {
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return -1;
      }
  
      ret = ((MSVCRT___time64_t)ft.dwHighDateTime<<32)+ft.dwLowDateTime;
      ret += (MSVCRT___time64_t)mstm->tm_sec*TICKSPERSEC;
      ret += (MSVCRT___time64_t)mstm->tm_min*60*TICKSPERSEC;
      ret += (MSVCRT___time64_t)mstm->tm_hour*60*60*TICKSPERSEC;
      ret += (MSVCRT___time64_t)(mstm->tm_mday-1)*SECSPERDAY*TICKSPERSEC;
  
      ft.dwLowDateTime = ret & 0xffffffff;
      ft.dwHighDateTime = ret >> 32;
      FileTimeToSystemTime(&ft, &st);
  
      if(local) {
          _tzset_init();
          use_dst = is_dst(&st);
          if((mstm->tm_isdst<=-1 && use_dst) || (mstm->tm_isdst>=1)) {
              SYSTEMTIME tmp;
  
              ret += (MSVCRT___time64_t)MSVCRT__dstbias*TICKSPERSEC;
  
              ft.dwLowDateTime = ret & 0xffffffff;
              ft.dwHighDateTime = ret >> 32;
              FileTimeToSystemTime(&ft, &tmp);
  
              if(!is_dst(&tmp)) {
                  st = tmp;
                  use_dst = FALSE;
              }else {
                  use_dst = TRUE;
              }
          }else if(mstm->tm_isdst==0 && use_dst) {
              ret -= (MSVCRT___time64_t)MSVCRT__dstbias*TICKSPERSEC;
              ft.dwLowDateTime = ret & 0xffffffff;
              ft.dwHighDateTime = ret >> 32;
              FileTimeToSystemTime(&ft, &st);
              ret += (MSVCRT___time64_t)MSVCRT__dstbias*TICKSPERSEC;
          }
          ret += (MSVCRT___time64_t)MSVCRT___timezone*TICKSPERSEC;
      }
  
      mstm->tm_sec = st.wSecond;
      mstm->tm_min = st.wMinute;
      mstm->tm_hour = st.wHour;
      mstm->tm_mday = st.wDay;
      mstm->tm_mon = st.wMonth-1;
      mstm->tm_year = st.wYear-1900;
      mstm->tm_wday = st.wDayOfWeek;
      for(i=mstm->tm_yday=0; i<st.wMonth-1; i++)
          mstm->tm_yday += MonthLengths[IsLeapYear(st.wYear)][i];
      mstm->tm_yday += st.wDay-1;
      mstm->tm_isdst = use_dst ? 1 : 0;
  
      if(ret < TICKS_1601_TO_1970) {
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return -1;
      }
      ret = (ret-TICKS_1601_TO_1970)/TICKSPERSEC;
      return ret;
  }
  
  /**********************************************************************
   *		_mktime64 (MSVCRT.@)
   */
  MSVCRT___time64_t CDECL MSVCRT__mktime64(struct MSVCRT_tm *mstm)
  {
      return mktime_helper(mstm, TRUE);
  }
  
  /**********************************************************************
   *		_mktime32 (MSVCRT.@)
   */
  MSVCRT___time32_t CDECL MSVCRT__mktime32(struct MSVCRT_tm *mstm)
  {
      MSVCRT___time64_t ret = MSVCRT__mktime64( mstm );
      return ret == (MSVCRT___time32_t)ret ? ret : -1;
  }
  
  /**********************************************************************
   *		mktime (MSVCRT.@)
   */
  #ifdef _WIN64
  MSVCRT___time64_t CDECL MSVCRT_mktime(struct MSVCRT_tm *mstm)
  {
      return MSVCRT__mktime64( mstm );
  }
  #else
  MSVCRT___time32_t CDECL MSVCRT_mktime(struct MSVCRT_tm *mstm)
  {
      return MSVCRT__mktime32( mstm );
  }
  #endif
  
  /**********************************************************************
   *		_mkgmtime64 (MSVCRT.@)
   *
   * time->tm_isdst value is ignored
   */
  MSVCRT___time64_t CDECL MSVCRT__mkgmtime64(struct MSVCRT_tm *time)
  {
      return mktime_helper(time, FALSE);
  }
  
  /**********************************************************************
   *		_mkgmtime32 (MSVCRT.@)
   */
  MSVCRT___time32_t CDECL MSVCRT__mkgmtime32(struct MSVCRT_tm *time)
  {
      MSVCRT___time64_t ret = MSVCRT__mkgmtime64(time);
      return ret == (MSVCRT___time32_t)ret ? ret : -1;
  }
  
  /**********************************************************************
   *		_mkgmtime (MSVCRT.@)
   */
  #ifdef _WIN64
  MSVCRT___time64_t CDECL MSVCRT__mkgmtime(struct MSVCRT_tm *time)
  {
      return MSVCRT__mkgmtime64(time);
  }
  #else
  MSVCRT___time32_t CDECL MSVCRT__mkgmtime(struct MSVCRT_tm *time)
  {
      return MSVCRT__mkgmtime32(time);
  }
  #endif
  
  /*********************************************************************
   *      _localtime64_s (MSVCRT.@)
   */
  int CDECL _localtime64_s(struct MSVCRT_tm *res, const MSVCRT___time64_t *secs)
  {
      int i;
      FILETIME ft;
      SYSTEMTIME st;
      ULONGLONG time;
  
      if (!res || !secs || *secs < 0 || *secs > _MAX__TIME64_T)
      {
          if (res)
              write_invalid_msvcrt_tm(res);
  
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return MSVCRT_EINVAL;
      }
  
      _tzset_init();
      time = (*secs - MSVCRT___timezone) * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970;
  
      ft.dwHighDateTime = (UINT)(time >> 32);
      ft.dwLowDateTime  = (UINT)time;
      FileTimeToSystemTime(&ft, &st);
  
      res->tm_isdst = is_dst(&st) ? 1 : 0;
      if(res->tm_isdst) {
          time -= MSVCRT__dstbias * (ULONGLONG)TICKSPERSEC;
          ft.dwHighDateTime = (UINT)(time >> 32);
          ft.dwLowDateTime  = (UINT)time;
          FileTimeToSystemTime(&ft, &st);
      }
  
      res->tm_sec  = st.wSecond;
      res->tm_min  = st.wMinute;
      res->tm_hour = st.wHour;
      res->tm_mday = st.wDay;
      res->tm_year = st.wYear - 1900;
      res->tm_mon  = st.wMonth - 1;
      res->tm_wday = st.wDayOfWeek;
      for (i = res->tm_yday = 0; i < st.wMonth - 1; i++)
          res->tm_yday += MonthLengths[IsLeapYear(st.wYear)][i];
      res->tm_yday += st.wDay - 1;
  
      return 0;
  }
  
  /*********************************************************************
   *      _localtime64 (MSVCRT.@)
   */
  struct MSVCRT_tm* CDECL MSVCRT__localtime64(const MSVCRT___time64_t* secs)
  {
      thread_data_t *data = msvcrt_get_thread_data();
  
      if(!data->time_buffer)
          data->time_buffer = MSVCRT_malloc(sizeof(struct MSVCRT_tm));
  
      if(_localtime64_s(data->time_buffer, secs))
          return NULL;
      return data->time_buffer;
  }
  
  /*********************************************************************
   *      _localtime32 (MSVCRT.@)
   */
  struct MSVCRT_tm* CDECL MSVCRT__localtime32(const MSVCRT___time32_t* secs)
  {
      MSVCRT___time64_t secs64;
  
      if(!secs)
          return NULL;
  
      secs64 = *secs;
      return MSVCRT__localtime64( &secs64 );
  }
  
  /*********************************************************************
   *      _localtime32_s (MSVCRT.@)
   */
  int CDECL _localtime32_s(struct MSVCRT_tm *time, const MSVCRT___time32_t *secs)
  {
      MSVCRT___time64_t secs64;
  
      if (!time || !secs || *secs < 0)
      {
          if (time)
              write_invalid_msvcrt_tm(time);
  
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return MSVCRT_EINVAL;
      }
  
      secs64 = *secs;
      return _localtime64_s(time, &secs64);
  }
  
  /*********************************************************************
   *      localtime (MSVCRT.@)
   */
  #ifdef _WIN64
  struct MSVCRT_tm* CDECL MSVCRT_localtime(const MSVCRT___time64_t* secs)
  {
      return MSVCRT__localtime64( secs );
  }
  #else
  struct MSVCRT_tm* CDECL MSVCRT_localtime(const MSVCRT___time32_t* secs)
  {
      return MSVCRT__localtime32( secs );
  }
  #endif
  
  /*********************************************************************
   *      _gmtime64 (MSVCRT.@)
   */
  int CDECL MSVCRT__gmtime64_s(struct MSVCRT_tm *res, const MSVCRT___time64_t *secs)
  {
      int i;
      FILETIME ft;
      SYSTEMTIME st;
      ULONGLONG time;
  
      if (!res || !secs || *secs < 0 || *secs > _MAX__TIME64_T) {
          if (res) {
              write_invalid_msvcrt_tm(res);
          }
  
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return MSVCRT_EINVAL;
      }
  
      time = *secs * (ULONGLONG)TICKSPERSEC + TICKS_1601_TO_1970;
  
      ft.dwHighDateTime = (UINT)(time >> 32);
      ft.dwLowDateTime  = (UINT)time;
  
      FileTimeToSystemTime(&ft, &st);
  
      res->tm_sec  = st.wSecond;
      res->tm_min  = st.wMinute;
      res->tm_hour = st.wHour;
      res->tm_mday = st.wDay;
      res->tm_year = st.wYear - 1900;
      res->tm_mon  = st.wMonth - 1;
      res->tm_wday = st.wDayOfWeek;
      for (i = res->tm_yday = 0; i < st.wMonth - 1; i++) {
          res->tm_yday += MonthLengths[IsLeapYear(st.wYear)][i];
      }
  
      res->tm_yday += st.wDay - 1;
      res->tm_isdst = 0;
  
      return 0;
  }
  
  /*********************************************************************
   *      _gmtime64 (MSVCRT.@)
   */
  struct MSVCRT_tm* CDECL MSVCRT__gmtime64(const MSVCRT___time64_t *secs)
  {
      thread_data_t * const data = msvcrt_get_thread_data();
  
      if(!data->time_buffer)
          data->time_buffer = MSVCRT_malloc(sizeof(struct MSVCRT_tm));
  
      if(MSVCRT__gmtime64_s(data->time_buffer, secs))
          return NULL;
      return data->time_buffer;
  }
  
  /*********************************************************************
   *      _gmtime32_s (MSVCRT.@)
   */
  int CDECL MSVCRT__gmtime32_s(struct MSVCRT_tm *res, const MSVCRT___time32_t *secs)
  {
      MSVCRT___time64_t secs64;
  
      if(secs) {
          secs64 = *secs;
          return MSVCRT__gmtime64_s(res, &secs64);
      }
      return MSVCRT__gmtime64_s(res, NULL);
  }
  
  /*********************************************************************
   *      _gmtime32 (MSVCRT.@)
   */
  struct MSVCRT_tm* CDECL MSVCRT__gmtime32(const MSVCRT___time32_t* secs)
  {
      MSVCRT___time64_t secs64;
  
      if(!secs)
          return NULL;
  
      secs64 = *secs;
      return MSVCRT__gmtime64( &secs64 );
  }
  
  /*********************************************************************
   *      gmtime (MSVCRT.@)
   */
  #ifdef _WIN64
  struct MSVCRT_tm* CDECL MSVCRT_gmtime(const MSVCRT___time64_t* secs)
  {
      return MSVCRT__gmtime64( secs );
  }
  #else
  struct MSVCRT_tm* CDECL MSVCRT_gmtime(const MSVCRT___time32_t* secs)
  {
      return MSVCRT__gmtime32( secs );
  }
  #endif
  
  /**********************************************************************
   *		_strdate (MSVCRT.@)
   */
  char* CDECL MSVCRT__strdate(char* date)
  {
    static const char format[] = "MM'/'dd'/'yy";
  
    GetDateFormatA(LOCALE_NEUTRAL, 0, NULL, format, date, 9);
  
    return date;
  }
  
  /**********************************************************************
   *              _strdate_s (MSVCRT.@)
   */
  int CDECL _strdate_s(char* date, MSVCRT_size_t size)
  {
      if(date && size)
          date[0] = '\0';
  
      if(!date) {
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return MSVCRT_EINVAL;
      }
  
      if(size < 9) {
          *MSVCRT__errno() = MSVCRT_ERANGE;
          return MSVCRT_ERANGE;
      }
  
      MSVCRT__strdate(date);
      return 0;
  }
  
  /**********************************************************************
   *		_wstrdate (MSVCRT.@)
   */
  MSVCRT_wchar_t* CDECL MSVCRT__wstrdate(MSVCRT_wchar_t* date)
  {
    static const WCHAR format[] = { 'M','M','\'','/','\'','d','d','\'','/','\'','y','y',0 };
  
    GetDateFormatW(LOCALE_NEUTRAL, 0, NULL, format, date, 9);
  
    return date;
  }
  
  /**********************************************************************
   *              _wstrdate_s (MSVCRT.@)
   */
  int CDECL _wstrdate_s(MSVCRT_wchar_t* date, MSVCRT_size_t size)
  {
      if(date && size)
          date[0] = '\0';
  
      if(!date) {
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return MSVCRT_EINVAL;
      }
  
      if(size < 9) {
          *MSVCRT__errno() = MSVCRT_ERANGE;
          return MSVCRT_ERANGE;
      }
  
      MSVCRT__wstrdate(date);
      return 0;
  }
  
  /*********************************************************************
   *		_strtime (MSVCRT.@)
   */
  char* CDECL MSVCRT__strtime(char* time)
  {
    static const char format[] = "HH':'mm':'ss";
  
    GetTimeFormatA(LOCALE_NEUTRAL, 0, NULL, format, time, 9); 
  
    return time;
  }
  
  /*********************************************************************
   *              _strtime_s (MSVCRT.@)
   */
  int CDECL _strtime_s(char* time, MSVCRT_size_t size)
  {
      if(time && size)
          time[0] = '\0';
  
      if(!time) {
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return MSVCRT_EINVAL;
      }
  
      if(size < 9) {
          *MSVCRT__errno() = MSVCRT_ERANGE;
          return MSVCRT_ERANGE;
      }
  
      MSVCRT__strtime(time);
      return 0;
  }
  
  /*********************************************************************
   *		_wstrtime (MSVCRT.@)
   */
  MSVCRT_wchar_t* CDECL MSVCRT__wstrtime(MSVCRT_wchar_t* time)
  {
    static const WCHAR format[] = { 'H','H','\'',':','\'','m','m','\'',':','\'','s','s',0 };
  
    GetTimeFormatW(LOCALE_NEUTRAL, 0, NULL, format, time, 9);
  
    return time;
  }
  
  /*********************************************************************
   *              _wstrtime_s (MSVCRT.@)
   */
  int CDECL _wstrtime_s(MSVCRT_wchar_t* time, MSVCRT_size_t size)
  {
      if(time && size)
          time[0] = '\0';
  
      if(!time) {
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return MSVCRT_EINVAL;
      }
  
      if(size < 9) {
          *MSVCRT__errno() = MSVCRT_ERANGE;
          return MSVCRT_ERANGE;
      }
  
      MSVCRT__wstrtime(time);
      return 0;
  }
  
  /*********************************************************************
   *		clock (MSVCRT.@)
   */
  MSVCRT_clock_t CDECL MSVCRT_clock(void)
  {
      static LONGLONG start_time;
      LARGE_INTEGER systime;
  
      if(!start_time) {
          KERNEL_USER_TIMES pti;
  
          /* while Linux's clock returns user time, Windows' clock
           * returns wall-clock time from process start.  cache the
           * process start time since it won't change and to avoid
           * wineserver round-trip overhead */
          if(NtQueryInformationProcess(GetCurrentProcess(), ProcessTimes, &pti, sizeof(pti), NULL))
              return -1;
          start_time = pti.CreateTime.QuadPart;
      }
  
      NtQuerySystemTime(&systime);
      return (systime.QuadPart - start_time) * MSVCRT_CLOCKS_PER_SEC / TICKSPERSEC;
  }
  
  /*********************************************************************
   *		_difftime64 (MSVCRT.@)
   */
  double CDECL MSVCRT__difftime64(MSVCRT___time64_t time1, MSVCRT___time64_t time2)
  {
    return (double)(time1 - time2);
  }
  
  /*********************************************************************
   *		_difftime32 (MSVCRT.@)
   */
  double CDECL MSVCRT__difftime32(MSVCRT___time32_t time1, MSVCRT___time32_t time2)
  {
    return (double)(time1 - time2);
  }
  
  /*********************************************************************
   *		difftime (MSVCRT.@)
   */
  #ifdef _WIN64
  double CDECL MSVCRT_difftime(MSVCRT___time64_t time1, MSVCRT___time64_t time2)
  {
      return MSVCRT__difftime64( time1, time2 );
  }
  #else
  double CDECL MSVCRT_difftime(MSVCRT___time32_t time1, MSVCRT___time32_t time2)
  {
      return MSVCRT__difftime32( time1, time2 );
  }
  #endif
  
  /*********************************************************************
   *		_ftime64 (MSVCRT.@)
   */
  void CDECL MSVCRT__ftime64(struct MSVCRT___timeb64 *buf)
  {
    TIME_ZONE_INFORMATION tzinfo;
    FILETIME ft;
    ULONGLONG time;
  
    DWORD tzid = GetTimeZoneInformation(&tzinfo);
    GetSystemTimeAsFileTime(&ft);
  
    time = ((ULONGLONG)ft.dwHighDateTime << 32) | ft.dwLowDateTime;
  
    buf->time = time / TICKSPERSEC - SECS_1601_TO_1970;
    buf->millitm = (time % TICKSPERSEC) / TICKSPERMSEC;
    buf->timezone = tzinfo.Bias +
        ( tzid == TIME_ZONE_ID_STANDARD ? tzinfo.StandardBias :
        ( tzid == TIME_ZONE_ID_DAYLIGHT ? tzinfo.DaylightBias : 0 ));
    buf->dstflag = (tzid == TIME_ZONE_ID_DAYLIGHT?1:0);
  }
  
  /*********************************************************************
   *		_ftime64_s (MSVCRT.@)
   */
  int CDECL MSVCRT__ftime64_s(struct MSVCRT___timeb64 *buf)
  {
      if (!MSVCRT_CHECK_PMT( buf != NULL )) return MSVCRT_EINVAL;
      MSVCRT__ftime64(buf);
      return 0;
  }
  
  /*********************************************************************
   *		_ftime32 (MSVCRT.@)
   */
  void CDECL MSVCRT__ftime32(struct MSVCRT___timeb32 *buf)
  {
      struct MSVCRT___timeb64 buf64;
  
      MSVCRT__ftime64( &buf64 );
      buf->time     = buf64.time;
      buf->millitm  = buf64.millitm;
      buf->timezone = buf64.timezone;
      buf->dstflag  = buf64.dstflag;
  }
  
  /*********************************************************************
   *		_ftime32_s (MSVCRT.@)
   */
  int CDECL MSVCRT__ftime32_s(struct MSVCRT___timeb32 *buf)
  {
      if (!MSVCRT_CHECK_PMT( buf != NULL )) return MSVCRT_EINVAL;
      MSVCRT__ftime32(buf);
      return 0;
  }
  
  /*********************************************************************
   *		_ftime (MSVCRT.@)
   */
  #ifdef _WIN64
  void CDECL MSVCRT__ftime(struct MSVCRT___timeb64 *buf)
  {
      MSVCRT__ftime64( buf );
  }
  #else
  void CDECL MSVCRT__ftime(struct MSVCRT___timeb32 *buf)
  {
      MSVCRT__ftime32( buf );
  }
  #endif
  
  /*********************************************************************
   *		_time64 (MSVCRT.@)
   */
  MSVCRT___time64_t CDECL MSVCRT__time64(MSVCRT___time64_t *buf)
  {
      MSVCRT___time64_t curtime;
      struct MSVCRT___timeb64 tb;
  
      MSVCRT__ftime64(&tb);
  
      curtime = tb.time;
      return buf ? *buf = curtime : curtime;
  }
  
  /*********************************************************************
   *		_time32 (MSVCRT.@)
   */
  MSVCRT___time32_t CDECL MSVCRT__time32(MSVCRT___time32_t *buf)
  {
      MSVCRT___time32_t curtime;
      struct MSVCRT___timeb64 tb;
  
      MSVCRT__ftime64(&tb);
  
      curtime = tb.time;
      return buf ? *buf = curtime : curtime;
  }
  
  /*********************************************************************
   *		time (MSVCRT.@)
   */
  #ifdef _WIN64
  MSVCRT___time64_t CDECL MSVCRT_time(MSVCRT___time64_t* buf)
  {
      return MSVCRT__time64( buf );
  }
  #else
  MSVCRT___time32_t CDECL MSVCRT_time(MSVCRT___time32_t* buf)
  {
      return MSVCRT__time32( buf );
  }
  #endif
  
  /*********************************************************************
   *		__p__daylight (MSVCRT.@)
   */
  int * CDECL MSVCRT___p__daylight(void)
  {
  	return &MSVCRT___daylight;
  }
  
  /*********************************************************************
   *		__p__dstbias (MSVCRT.@)
   */
  int * CDECL MSVCRT___p__dstbias(void)
  {
      return &MSVCRT__dstbias;
  }
  
  #if _MSVCR_VER >= 80
  /*********************************************************************
   *              _get_dstbias (MSVCR80.@)
   */
  int CDECL  MSVCRT__get_dstbias(int *seconds)
  {
      if (!MSVCRT_CHECK_PMT(seconds != NULL)) return MSVCRT_EINVAL;
      *seconds = MSVCRT__dstbias;
      return 0;
  }
  #endif
  
  /*********************************************************************
   *		__p__timezone (MSVCRT.@)
   */
  MSVCRT_long * CDECL MSVCRT___p__timezone(void)
  {
  	return &MSVCRT___timezone;
  }
  
  /*********************************************************************
   *		_get_tzname (MSVCRT.@)
   */
  int CDECL MSVCRT__get_tzname(MSVCRT_size_t *ret, char *buf, MSVCRT_size_t bufsize, int index)
  {
      char *timezone;
  
      switch(index)
      {
      case 0:
          timezone = tzname_std;
          break;
      case 1:
          timezone = tzname_dst;
          break;
      default:
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return MSVCRT_EINVAL;
      }
  
      if(!ret || (!buf && bufsize > 0) || (buf && !bufsize))
      {
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return MSVCRT_EINVAL;
      }
  
      *ret = strlen(timezone)+1;
      if(!buf && !bufsize)
          return 0;
  
      strcpy(buf, timezone);
      return 0;
  }
  
  /*********************************************************************
   *		__p_tzname (MSVCRT.@)
   */
  char ** CDECL __p__tzname(void)
  {
  	return MSVCRT__tzname;
  }
  
  static inline BOOL strftime_date(char *str, MSVCRT_size_t *pos, MSVCRT_size_t max,
          BOOL alternate, const struct MSVCRT_tm *mstm, MSVCRT___lc_time_data *time_data)
  {
      char *format;
      SYSTEMTIME st;
      MSVCRT_size_t ret;
      LCID lcid;
  
      st.wYear = mstm->tm_year + 1900;
      st.wMonth = mstm->tm_mon + 1;
      st.wDayOfWeek = mstm->tm_wday;
      st.wDay = mstm->tm_mday;
      st.wHour = mstm->tm_hour;
      st.wMinute = mstm->tm_min;
      st.wSecond = mstm->tm_sec;
      st.wMilliseconds = 0;
  
  #if _MSVCR_VER < 110
      lcid = time_data->lcid;
  #else
      lcid = LocaleNameToLCID(time_data->locname, 0);
  #endif
  
      format = alternate ? time_data->str.names.date : time_data->str.names.short_date;
      ret = GetDateFormatA(lcid, 0, &st, format, NULL, 0);
      if(ret && ret<max-*pos)
          ret = GetDateFormatA(lcid, 0, &st, format, str+*pos, max-*pos);
      if(!ret) {
          *str = 0;
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return FALSE;
      }else if(ret > max-*pos) {
          *str = 0;
          *MSVCRT__errno() = MSVCRT_ERANGE;
          return FALSE;
      }
      *pos += ret-1;
      return TRUE;
  }
  
  static inline BOOL strftime_time(char *str, MSVCRT_size_t *pos, MSVCRT_size_t max,
          const struct MSVCRT_tm *mstm, MSVCRT___lc_time_data *time_data)
  {
      SYSTEMTIME st;
      MSVCRT_size_t ret;
      LCID lcid;
  
      st.wYear = mstm->tm_year + 1900;
      st.wMonth = mstm->tm_mon + 1;
      st.wDayOfWeek = mstm->tm_wday;
      st.wDay = mstm->tm_mday;
      st.wHour = mstm->tm_hour;
      st.wMinute = mstm->tm_min;
      st.wSecond = mstm->tm_sec;
      st.wMilliseconds = 0;
  
  #if _MSVCR_VER < 110
      lcid = time_data->lcid;
  #else
      lcid = LocaleNameToLCID(time_data->locname, 0);
  #endif
  
      ret = GetTimeFormatA(lcid, 0, &st, time_data->str.names.time, NULL, 0);
      if(ret && ret<max-*pos)
          ret = GetTimeFormatA(lcid, 0, &st, time_data->str.names.time,
                  str+*pos, max-*pos);
      if(!ret) {
          *str = 0;
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return FALSE;
      }else if(ret > max-*pos) {
          *str = 0;
          *MSVCRT__errno() = MSVCRT_ERANGE;
          return FALSE;
      }
      *pos += ret-1;
      return TRUE;
  }
  
  static inline BOOL strftime_str(char *str, MSVCRT_size_t *pos, MSVCRT_size_t max, char *src)
  {
      MSVCRT_size_t len = strlen(src);
      if(len > max-*pos) {
          *str = 0;
          *MSVCRT__errno() = MSVCRT_ERANGE;
          return FALSE;
      }
  
      memcpy(str+*pos, src, len);
      *pos += len;
      return TRUE;
  }
  
  static inline BOOL strftime_int(char *str, MSVCRT_size_t *pos, MSVCRT_size_t max,
          int src, int prec, int l, int h)
  {
      MSVCRT_size_t len;
  
      if(src<l || src>h) {
          *str = 0;
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return FALSE;
      }
  
      len = MSVCRT__snprintf(str+*pos, max-*pos, "%0*d", prec, src);
      if(len == -1) {
          *str = 0;
          *MSVCRT__errno() = MSVCRT_ERANGE;
          return FALSE;
      }
  
      *pos += len;
      return TRUE;
  }
  
  static MSVCRT_size_t strftime_helper(char *str, MSVCRT_size_t max, const char *format,
          const struct MSVCRT_tm *mstm, MSVCRT___lc_time_data *time_data, MSVCRT__locale_t loc)
  {
      MSVCRT_size_t ret, tmp;
      BOOL alternate;
  
      TRACE("(%p %ld %s %p %p)\n", str, max, format, mstm, time_data);
  
      if(!str || !format) {
          if(str && max)
              *str = 0;
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return 0;
      }
  
      if(!time_data)
          time_data = loc ? loc->locinfo->lc_time_curr : get_locinfo()->lc_time_curr;
  
      for(ret=0; *format && ret<max; format++) {
          if(*format != '%') {
              if(MSVCRT__isleadbyte_l((unsigned char)*format, loc)) {
                  str[ret++] = *(format++);
                  if(ret == max) continue;
                  if(!str[ret]) goto einval_error;
              }
              str[ret++] = *format;
              continue;
          }
  
          format++;
          if(*format == '#') {
              alternate = TRUE;
              format++;
          }else {
              alternate = FALSE;
          }
  
          if(!mstm)
              goto einval_error;
  
          switch(*format) {
          case 'c':
              if(!strftime_date(str, &ret, max, alternate, mstm, time_data))
                  return 0;
              if(ret < max)
                  str[ret++] = ' ';
              if(!strftime_time(str, &ret, max, mstm, time_data))
                  return 0;
              break;
          case 'x':
              if(!strftime_date(str, &ret, max, alternate, mstm, time_data))
                  return 0;
              break;
          case 'X':
              if(!strftime_time(str, &ret, max, mstm, time_data))
                  return 0;
              break;
          case 'a':
              if(mstm->tm_wday<0 || mstm->tm_wday>6)
                  goto einval_error;
              if(!strftime_str(str, &ret, max, time_data->str.names.short_wday[mstm->tm_wday]))
                  return 0;
              break;
          case 'A':
              if(mstm->tm_wday<0 || mstm->tm_wday>6)
                  goto einval_error;
              if(!strftime_str(str, &ret, max, time_data->str.names.wday[mstm->tm_wday]))
                  return 0;
              break;
          case 'b':
              if(mstm->tm_mon<0 || mstm->tm_mon>11)
                  goto einval_error;
              if(!strftime_str(str, &ret, max, time_data->str.names.short_mon[mstm->tm_mon]))
                  return 0;
              break;
          case 'B':
              if(mstm->tm_mon<0 || mstm->tm_mon>11)
                  goto einval_error;
              if(!strftime_str(str, &ret, max, time_data->str.names.mon[mstm->tm_mon]))
                  return 0;
              break;
          case 'd':
              if(!strftime_int(str, &ret, max, mstm->tm_mday, alternate ? 0 : 2, 0, 31))
                  return 0;
              break;
          case 'H':
              if(!strftime_int(str, &ret, max, mstm->tm_hour, alternate ? 0 : 2, 0, 23))
                  return 0;
              break;
          case 'I':
              tmp = mstm->tm_hour;
              if(tmp > 12)
                  tmp -= 12;
              else if(!tmp)
                  tmp = 12;
              if(!strftime_int(str, &ret, max, tmp, alternate ? 0 : 2, 1, 12))
                  return 0;
              break;
          case 'j':
              if(!strftime_int(str, &ret, max, mstm->tm_yday+1, alternate ? 0 : 3, 1, 366))
                  return 0;
              break;
          case 'm':
              if(!strftime_int(str, &ret, max, mstm->tm_mon+1, alternate ? 0 : 2, 1, 12))
                  return 0;
              break;
          case 'M':
              if(!strftime_int(str, &ret, max, mstm->tm_min, alternate ? 0 : 2, 0, 59))
                  return 0;
              break;
          case 'p':
              if(mstm->tm_hour<0 || mstm->tm_hour>23)
                  goto einval_error;
              if(!strftime_str(str, &ret, max, mstm->tm_hour<12 ?
                          time_data->str.names.am : time_data->str.names.pm))
                  return 0;
              break;
          case 'S':
              if(!strftime_int(str, &ret, max, mstm->tm_sec, alternate ? 0 : 2, 0, 59))
                  return 0;
              break;
          case 'w':
              if(!strftime_int(str, &ret, max, mstm->tm_wday, 0, 0, 6))
                  return 0;
              break;
          case 'y':
              if(!strftime_int(str, &ret, max, mstm->tm_year%100, alternate ? 0 : 2, 0, 99))
                  return 0;
              break;
          case 'Y':
              tmp = 1900+mstm->tm_year;
              if(!strftime_int(str, &ret, max, tmp, alternate ? 0 : 4, 0, 9999))
                  return 0;
              break;
          case 'z':
          case 'Z':
              MSVCRT__tzset();
              if(MSVCRT__get_tzname(&tmp, str+ret, max-ret, mstm->tm_isdst ? 1 : 0))
                  return 0;
              ret += tmp-1;
              break;
          case 'U':
          case 'W':
              if(mstm->tm_wday<0 || mstm->tm_wday>6 || mstm->tm_yday<0 || mstm->tm_yday>365)
                  goto einval_error;
              if(*format == 'U')
                  tmp = mstm->tm_wday;
              else if(!mstm->tm_wday)
                  tmp = 6;
              else
                  tmp = mstm->tm_wday-1;
  
              tmp = mstm->tm_yday/7 + (tmp<=mstm->tm_yday%7);
              if(!strftime_int(str, &ret, max, tmp, alternate ? 0 : 2, 0, 53))
                  return 0;
              break;
          case '%':
              str[ret++] = '%';
              break;
          default:
              WARN("unknown format %c\n", *format);
              goto einval_error;
          }
      }
  
      if(ret == max) {
          if(max)
              *str = 0;
          *MSVCRT__errno() = MSVCRT_ERANGE;
          return 0;
      }
  
      str[ret] = 0;
      return ret;
  
  einval_error:
      *str = 0;
      *MSVCRT__errno() = MSVCRT_EINVAL;
      return 0;
  }
  
  #if _MSVCR_VER >= 80
  /********************************************************************
   *     _strftime_l (MSVCR80.@)
   */
  MSVCRT_size_t CDECL MSVCRT__strftime_l( char *str, MSVCRT_size_t max, const char *format,
          const struct MSVCRT_tm *mstm, MSVCRT__locale_t loc )
  {
      return strftime_helper(str, max, format, mstm, NULL, loc);
  }
  #endif
  
  /*********************************************************************
   *		_Strftime (MSVCRT.@)
   */
  MSVCRT_size_t CDECL _Strftime(char *str, MSVCRT_size_t max, const char *format,
          const struct MSVCRT_tm *mstm, MSVCRT___lc_time_data *time_data)
  {
      return strftime_helper(str, max, format, mstm, time_data, NULL);
  }
  
  /*********************************************************************
   *		strftime (MSVCRT.@)
   */
  MSVCRT_size_t CDECL MSVCRT_strftime( char *str, MSVCRT_size_t max, const char *format,
                                       const struct MSVCRT_tm *mstm )
  {
      return strftime_helper(str, max, format, mstm, NULL, NULL);
  }
  
  static MSVCRT_size_t wcsftime_helper( MSVCRT_wchar_t *str, MSVCRT_size_t max,
          const MSVCRT_wchar_t *format, const struct MSVCRT_tm *mstm,
          MSVCRT___lc_time_data *time_data, MSVCRT__locale_t loc )
  {
      char *s, *fmt;
      MSVCRT_size_t len;
  
      TRACE("%p %ld %s %p %p %p\n", str, max, debugstr_w(format), mstm, time_data, loc);
  
      len = MSVCRT__wcstombs_l( NULL, format, 0, loc ) + 1;
      if (!(fmt = MSVCRT_malloc( len ))) return 0;
      MSVCRT__wcstombs_l(fmt, format, len, loc);
  
      if ((s = MSVCRT_malloc( max*4 )))
      {
          if (!strftime_helper( s, max*4, fmt, mstm, time_data, loc )) s[0] = 0;
          len = MSVCRT__mbstowcs_l( str, s, max, loc );
          MSVCRT_free( s );
      }
      else len = 0;
  
      MSVCRT_free( fmt );
      return len;
  }
  
  /*********************************************************************
   *              _wcsftime_l (MSVCRT.@)
   */
  MSVCRT_size_t CDECL MSVCRT__wcsftime_l( MSVCRT_wchar_t *str, MSVCRT_size_t max,
          const MSVCRT_wchar_t *format, const struct MSVCRT_tm *mstm, MSVCRT__locale_t loc )
  {
      return wcsftime_helper(str, max, format, mstm, NULL, loc);
  }
  
  /*********************************************************************
   *     wcsftime (MSVCRT.@)
   */
  MSVCRT_size_t CDECL MSVCRT_wcsftime( MSVCRT_wchar_t *str, MSVCRT_size_t max,
                                       const MSVCRT_wchar_t *format, const struct MSVCRT_tm *mstm )
  {
      return wcsftime_helper(str, max, format, mstm, NULL, NULL);
  }
  
  #if _MSVCR_VER >= 110
  /*********************************************************************
   *		_Wcsftime (MSVCR110.@)
   */
  MSVCRT_size_t CDECL _Wcsftime(MSVCRT_wchar_t *str, MSVCRT_size_t max,
          const MSVCRT_wchar_t *format, const struct MSVCRT_tm *mstm,
          MSVCRT___lc_time_data *time_data)
  {
      return wcsftime_helper(str, max, format, mstm, time_data, NULL);
  }
  #endif
  
  static char* asctime_buf(char *buf, const struct MSVCRT_tm *mstm)
  {
      static const char wday[7][4] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
      static const char month[12][4] = {"Jan", "Feb", "Mar", "Apr", "May",
          "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
  
      if (!mstm || mstm->tm_sec<0 || mstm->tm_sec>59
              || mstm->tm_min<0 || mstm->tm_min>59
              || mstm->tm_hour<0 || mstm->tm_hour>23
              || mstm->tm_mon<0 || mstm->tm_mon>11
              || mstm->tm_wday<0 || mstm->tm_wday>6
              || mstm->tm_year<0 || mstm->tm_mday<0
              || mstm->tm_mday>MonthLengths[IsLeapYear(1900+mstm->tm_year)][mstm->tm_mon]) {
          *MSVCRT__errno() = MSVCRT_EINVAL;
          return NULL;
      }
  
      MSVCRT__snprintf(buf, 26, "%s %s %02d %02d:%02d:%02d %c%03d\n", wday[mstm->tm_wday],
              month[mstm->tm_mon], mstm->tm_mday, mstm->tm_hour, mstm->tm_min,
              mstm->tm_sec, '1'+(mstm->tm_year+900)/1000, (900+mstm->tm_year)%1000);
      return buf;
  }
  
  /*********************************************************************
   *		asctime (MSVCRT.@)
   */
  char * CDECL MSVCRT_asctime(const struct MSVCRT_tm *mstm)
  {
      thread_data_t *data = msvcrt_get_thread_data();
  
      /* asctime returns date in format that always has exactly 26 characters */
      if (!data->asctime_buffer) {
          data->asctime_buffer = MSVCRT_malloc(26);
          if (!data->asctime_buffer) {
              *MSVCRT__errno() = MSVCRT_ENOMEM;
              return NULL;
          }
      }
  
      return asctime_buf(data->asctime_buffer, mstm);
  }
  
  /*********************************************************************
   *      asctime_s (MSVCRT.@)
   */
  int CDECL MSVCRT_asctime_s(char* time, MSVCRT_size_t size, const struct MSVCRT_tm *mstm)
  {
      if (!MSVCRT_CHECK_PMT(time != NULL)) return MSVCRT_EINVAL;
      if (size) time[0] = 0;
      if (!MSVCRT_CHECK_PMT(size >= 26)) return MSVCRT_EINVAL;
      if (!MSVCRT_CHECK_PMT(mstm != NULL)) return MSVCRT_EINVAL;
      if (!MSVCRT_CHECK_PMT(mstm->tm_sec >= 0 && mstm->tm_sec < 60)) return MSVCRT_EINVAL;
      if (!MSVCRT_CHECK_PMT(mstm->tm_min >= 0 && mstm->tm_min < 60)) return MSVCRT_EINVAL;
      if (!MSVCRT_CHECK_PMT(mstm->tm_hour >= 0 && mstm->tm_hour < 24)) return MSVCRT_EINVAL;
      if (!MSVCRT_CHECK_PMT(mstm->tm_mon >= 0 && mstm->tm_mon < 12)) return MSVCRT_EINVAL;
      if (!MSVCRT_CHECK_PMT(mstm->tm_wday >= 0 && mstm->tm_wday < 7)) return MSVCRT_EINVAL;
      if (!MSVCRT_CHECK_PMT(mstm->tm_year >= 0)) return MSVCRT_EINVAL;
      if (!MSVCRT_CHECK_PMT(mstm->tm_mday >= 0)) return MSVCRT_EINVAL;
      if (!MSVCRT_CHECK_PMT(mstm->tm_mday <= MonthLengths[IsLeapYear(1900+mstm->tm_year)][mstm->tm_mon])) return MSVCRT_EINVAL;
  
      asctime_buf(time, mstm);
      return 0;
  }
  
  /*********************************************************************
   *		_wasctime (MSVCRT.@)
   */
  MSVCRT_wchar_t * CDECL MSVCRT__wasctime(const struct MSVCRT_tm *mstm)
  {
      thread_data_t *data = msvcrt_get_thread_data();
      char buffer[26];
  
      if(!data->wasctime_buffer) {
          data->wasctime_buffer = MSVCRT_malloc(26*sizeof(MSVCRT_wchar_t));
          if(!data->wasctime_buffer) {
              *MSVCRT__errno() = MSVCRT_ENOMEM;
              return NULL;
          }
      }
  
      if(!asctime_buf(buffer, mstm))
          return NULL;
  
      MultiByteToWideChar(CP_ACP, 0, buffer, -1, data->wasctime_buffer, 26);
      return data->wasctime_buffer;
  }
  
  /*********************************************************************
   *      _wasctime_s (MSVCRT.@)
   */
  int CDECL MSVCRT__wasctime_s(MSVCRT_wchar_t* time, MSVCRT_size_t size, const struct MSVCRT_tm *mstm)
  {
      char buffer[26];
      int ret;
  
      if (!MSVCRT_CHECK_PMT(time != NULL)) return MSVCRT_EINVAL;
      if (size) time[0] = 0;
      if (!MSVCRT_CHECK_PMT(size >= 26)) return MSVCRT_EINVAL;
      if (!MSVCRT_CHECK_PMT(mstm != NULL)) return MSVCRT_EINVAL;
  
      ret = MSVCRT_asctime_s(buffer, sizeof(buffer), mstm);
      if(ret)
          return ret;
      MultiByteToWideChar(CP_ACP, 0, buffer, -1, time, size);
      return 0;
  }
  
  /*********************************************************************
   *		_ctime64 (MSVCRT.@)
   */
  char * CDECL MSVCRT__ctime64(const MSVCRT___time64_t *time)
  {
      struct MSVCRT_tm *t;
      t = MSVCRT__localtime64( time );
      if (!t) return NULL;
      return MSVCRT_asctime( t );
  }
  
  /*********************************************************************
   *		_ctime64_s (MSVCRT.@)
   */
  int CDECL MSVCRT__ctime64_s(char *res, MSVCRT_size_t len, const MSVCRT___time64_t *time)
  {
      struct MSVCRT_tm *t;
  
      if (!MSVCRT_CHECK_PMT( res != NULL )) return MSVCRT_EINVAL;
      if (!MSVCRT_CHECK_PMT( len >= 26 )) return MSVCRT_EINVAL;
      res[0] = '\0';
      if (!MSVCRT_CHECK_PMT( time != NULL )) return MSVCRT_EINVAL;
      if (!MSVCRT_CHECK_PMT( *time > 0 )) return MSVCRT_EINVAL;
  
      t = MSVCRT__localtime64( time );
      strcpy( res, MSVCRT_asctime( t ) );
      return 0;
  }
  
  /*********************************************************************
   *		_ctime32 (MSVCRT.@)
   */
  char * CDECL MSVCRT__ctime32(const MSVCRT___time32_t *time)
  {
      struct MSVCRT_tm *t;
      t = MSVCRT__localtime32( time );
      if (!t) return NULL;
      return MSVCRT_asctime( t );
  }
  
  /*********************************************************************
   *		_ctime32_s (MSVCRT.@)
   */
  int CDECL MSVCRT__ctime32_s(char *res, MSVCRT_size_t len, const MSVCRT___time32_t *time)
  {
      struct MSVCRT_tm *t;
  
      if (!MSVCRT_CHECK_PMT( res != NULL )) return MSVCRT_EINVAL;
      if (!MSVCRT_CHECK_PMT( len >= 26 )) return MSVCRT_EINVAL;
      res[0] = '\0';
      if (!MSVCRT_CHECK_PMT( time != NULL )) return MSVCRT_EINVAL;
      if (!MSVCRT_CHECK_PMT( *time > 0 )) return MSVCRT_EINVAL;
  
      t = MSVCRT__localtime32( time );
      strcpy( res, MSVCRT_asctime( t ) );
      return 0;
  }
  
  /*********************************************************************
   *		ctime (MSVCRT.@)
   */
  #ifdef _WIN64
  char * CDECL MSVCRT_ctime(const MSVCRT___time64_t *time)
  {
      return MSVCRT__ctime64( time );
  }
  #else
  char * CDECL MSVCRT_ctime(const MSVCRT___time32_t *time)
  {
      return MSVCRT__ctime32( time );
  }
  #endif
  
  /*********************************************************************
   *		_wctime64 (MSVCRT.@)
   */
  MSVCRT_wchar_t * CDECL MSVCRT__wctime64(const MSVCRT___time64_t *time)
  {
      return MSVCRT__wasctime( MSVCRT__localtime64(time) );
  }
  
  /*********************************************************************
   *		_wctime32 (MSVCRT.@)
   */
  MSVCRT_wchar_t * CDECL MSVCRT__wctime32(const MSVCRT___time32_t *time)
  {
      return MSVCRT__wasctime( MSVCRT__localtime32(time) );
  }
  
  /*********************************************************************
   *		_wctime (MSVCRT.@)
   */
  #ifdef _WIN64
  MSVCRT_wchar_t * CDECL MSVCRT__wctime(const MSVCRT___time64_t *time)
  {
      return MSVCRT__wctime64( time );
  }
  #else
  MSVCRT_wchar_t * CDECL MSVCRT__wctime(const MSVCRT___time32_t *time)
  {
      return MSVCRT__wctime32( time );
  }
  #endif
  
  /*********************************************************************
   *              _wctime64_s (MSVCRT.@)
   */
  int CDECL MSVCRT__wctime64_s(MSVCRT_wchar_t *buf,
          MSVCRT_size_t size, const MSVCRT___time64_t *time)
  {
      struct MSVCRT_tm tm;
      int ret;
  
      if(!MSVCRT_CHECK_PMT(buf != NULL)) return MSVCRT_EINVAL;
      if(!MSVCRT_CHECK_PMT(size != 0)) return MSVCRT_EINVAL;
      buf[0] = 0;
      if(!MSVCRT_CHECK_PMT(time != NULL)) return MSVCRT_EINVAL;
      if(!MSVCRT_CHECK_PMT(*time >= 0)) return MSVCRT_EINVAL;
      if(!MSVCRT_CHECK_PMT(*time <= _MAX__TIME64_T)) return MSVCRT_EINVAL;
  
      ret = _localtime64_s(&tm, time);
      if(ret != 0)
          return ret;
  
      return MSVCRT__wasctime_s(buf, size, &tm);
  }
  
  /*********************************************************************
   *              _wctime32_s (MSVCRT.@)
   */
  int CDECL MSVCRT__wctime32_s(MSVCRT_wchar_t *buf, MSVCRT_size_t size,
          const MSVCRT___time32_t *time)
  {
      struct MSVCRT_tm tm;
      int ret;
  
      if(!MSVCRT_CHECK_PMT(buf != NULL)) return MSVCRT_EINVAL;
      if(!MSVCRT_CHECK_PMT(size != 0)) return MSVCRT_EINVAL;
      buf[0] = 0;
      if(!MSVCRT_CHECK_PMT(time != NULL)) return MSVCRT_EINVAL;
      if(!MSVCRT_CHECK_PMT(*time >= 0)) return MSVCRT_EINVAL;
  
      ret = _localtime32_s(&tm, time);
      if(ret != 0)
          return ret;
  
      return MSVCRT__wasctime_s(buf, size, &tm);
  }
  
  #if _MSVCR_VER >= 80
  
  /*********************************************************************
   * _get_timezone (MSVCR80.@)
   */
  int CDECL _get_timezone(LONG *timezone)
  {
      if(!MSVCRT_CHECK_PMT(timezone != NULL)) return MSVCRT_EINVAL;
  
      *timezone = MSVCRT___timezone;
      return 0;
  }
  
  /*********************************************************************
   * _get_daylight (MSVCR80.@)
   */
  int CDECL _get_daylight(int *hours)
  {
      if(!MSVCRT_CHECK_PMT(hours != NULL)) return MSVCRT_EINVAL;
  
      *hours = MSVCRT___daylight;
      return 0;
  }
  
  #endif /* _MSVCR_VER >= 80 */
  