reactos/lib/sdk/crt/sys_stat/systime.c

   1 /*
   2  * COPYRIGHT:   See COPYING in the top level directory
   3  * PROJECT:     ReactOS system libraries
   4  * FILE:        lib/crt/??????
   5  * PURPOSE:     Unknown
   6  * PROGRAMER:   Unknown
   7  * UPDATE HISTORY:
   8  *              25/11/05: Added license header
   9  */
  10
  11 #include <precomp.h>
  12
  13 int month[12] = { 31,28,31,30,31,30,31,31,30,31,30,31};
  14
  15 /*
  16  * @unimplemented
  17  */
  18 unsigned int _getsystime(struct tm* tp)
  19 {
  20     SYSTEMTIME Time;
  21     int i;
  22     DWORD TimeZoneId;
  23     TIME_ZONE_INFORMATION TimeZoneInformation;
  24
  25     GetLocalTime(&Time);
  26
  27     tp->tm_year = Time.wYear - 1900;
  28     tp->tm_mon = Time.wMonth - 1;
  29     tp->tm_wday = Time.wDayOfWeek;
  30     tp->tm_mday = Time.wDay;
  31     tp->tm_hour = Time.wHour;
  32     tp->tm_min = Time.wMinute;
  33     tp->tm_sec = Time.wSecond;
  34
  35     tp->tm_isdst = -1;
  36
  37     TimeZoneId =  GetTimeZoneInformation(&TimeZoneInformation);
  38     if (TimeZoneId == TIME_ZONE_ID_DAYLIGHT){
  39       tp->tm_isdst = 1;
  40     }
  41     else
  42       tp->tm_isdst = 0;
  43
  44     if (tp->tm_year % 4 == 0) {
  45         if (tp->tm_year % 100 != 0)
  46             tp->tm_yday = 1;
  47         else if ((tp->tm_year-100) % 1000 == 0)
  48             tp->tm_yday = 1;
  49     }
  50
  51     for (i = 0; i <= tp->tm_mon; i++)
  52         tp->tm_yday += month[i];
  53
  54     return Time.wMilliseconds;
  55 }
  56
  57
  58 /*
  59  * @implemented
  60  */
  61 unsigned int _setsystime(struct tm* tp, unsigned int ms)
  62 {
  63     SYSTEMTIME Time;
  64
  65     Time.wYear = tp->tm_year + 1900;
  66     Time.wMonth = tp->tm_mon + 1;
  67     Time.wDayOfWeek = tp->tm_wday;
  68     Time.wDay = tp->tm_mday;
  69     Time.wHour = tp->tm_hour;
  70     Time.wMinute = tp->tm_min;
  71     Time.wSecond = tp->tm_sec;
  72     Time.wMilliseconds = ms;
  73
  74     if (!SetLocalTime(&Time))
  75         return -1;
  76
  77     return 0;
  78 }