lib/crtdll/sys_stat/systime.c

   1 #include <windows.h>
   2 #include <msvcrt/sys/time.h>
   3
   4
   5 int month[12] = { 31,28,31,30,31,30,31,31,30,31,30,31};
   6
   7 unsigned int _getsystime(struct tm* tp)
   8 {
   9     SYSTEMTIME Time;
  10     TIME_ZONE_INFORMATION TimeZoneInformation;
  11     DWORD TimeZoneId;
  12     int i;
  13
  14     GetLocalTime(&Time);
  15
  16     tp->tm_year = Time.wYear - 1900;
  17     tp->tm_mon = Time.wMonth - 1;
  18     tp->tm_wday = Time.wDayOfWeek;
  19     tp->tm_mday = Time.wDay;
  20     tp->tm_hour = Time.wHour;
  21     tp->tm_min = Time.wMinute;
  22     tp->tm_sec = Time.wSecond;
  23
  24     tp->tm_isdst = -1;
  25
  26     //FIXME GetTimeZoneInformation currently not in kernel32
  27
  28     //TimeZoneId =  GetTimeZoneInformation(&TimeZoneInformation );
  29     //if ( TimeZoneId == TIME_ZONE_ID_DAYLIGHT ) {
  30     //  tp->tm_isdst = 1;
  31     //}
  32     //else
  33     //  tp->tm_isdst = 0;
  34
  35     if (tp->tm_year % 4 == 0) {
  36         if (tp->tm_year % 100 != 0)
  37             tp->tm_yday = 1;
  38         else if ((tp->tm_year-100) % 1000 == 0)
  39             tp->tm_yday = 1;
  40     }
  41
  42     for (i = 0; i <= tp->tm_mon; i++)
  43         tp->tm_yday += month[i];
  44
  45     return Time.wMilliseconds;
  46 }
  47
  48
  49 unsigned int _setsystime(struct tm* tp, unsigned int ms)
  50 {
  51     SYSTEMTIME Time;
  52
  53     Time.wYear = tp->tm_year + 1900;
  54     Time.wMonth = tp->tm_mon + 1;
  55     Time.wDayOfWeek = tp->tm_wday;
  56     Time.wDay = tp->tm_mday;
  57     Time.wHour = tp->tm_hour;
  58     Time.wMinute = tp->tm_min;
  59     Time.wSecond = tp->tm_sec;
  60     Time.wMilliseconds = ms;
  61
  62     if (!SetLocalTime(&Time))
  63         return -1;
  64
  65     return 0;
  66 }