/*

* gmtime - convert the calendar time into broken down time

*/

/* $Header$ */

#include <time.h>

#include <limits.h>

#include "loc_time.h"

struct tm *

gmtime(register const time_t *timer)

{

static struct tm br_time;

register struct tm *timep = &br_time;

time_t time = *timer;

register unsigned long dayclock, dayno;

int year = EPOCH_YR;

dayclock = (unsigned long)time % SECS_DAY;

dayno = (unsigned long)time / SECS_DAY;

timep->tm_sec = dayclock % 60;

timep->tm_min = (dayclock % 3600) / 60;

timep->tm_hour = dayclock / 3600;

timep->tm_wday = (dayno + 4) % 7; /* day 0 was a thursday */

while (dayno >= YEARSIZE(year)) {

dayno -= YEARSIZE(year);

year++;

}

timep->tm_year = year - YEAR0;

timep->tm_yday = dayno;

timep->tm_mon = 0;

while (dayno >= _ytab[LEAPYEAR(year)][timep->tm_mon]) {

dayno -= _ytab[LEAPYEAR(year)][timep->tm_mon];

timep->tm_mon++;

}

timep->tm_mday = dayno + 1;

timep->tm_isdst = 0;

return timep;

}