Files
heimdal/lib/asn1/timegm.c
Assar Westerlund c1439d2cd8 changed asn1_locl.h to gen_locl.h and der_locl.h
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@2328 ec53bebd-3082-4978-b11e-865c3cabbd6b
1997-07-15 20:02:05 +00:00

38 lines
665 B
C

#include "der_locl.h"
RCSID("$Id$");
#ifndef HAVE_TIMEGM
static int
is_leap(unsigned y)
{
return (y % 4) == 0 && ((y % 100) != 0 || (y % 400) == 0);
}
time_t
timegm (struct tm *tm)
{
static const int ndays[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}};
time_t res = 0;
int i;
for (i = 70; i < tm->tm_year; ++i)
res += is_leap(i) ? 366 : 365;
for (i = 0; i < tm->tm_mon; ++i)
res += ndays[is_leap(tm->tm_year)][i];
res += tm->tm_mday - 1;
res *= 24;
res += tm->tm_hour;
res *= 60;
res += tm->tm_min;
res *= 60;
res += tm->tm_sec;
return res;
}
#endif