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/*
** Copyright 1998 - 1999 Double Precision, Inc.
** See COPYING for distribution information.
*/
/*
*/
#include "rfc822.h"
#include <sys/types.h>
#include <time.h>
#include <stdio.h>
#include <string.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
static const char * const months[]={
"Jan",
"Feb",
"Mar",
"Apr",
"May",
"Jun",
"Jul",
"Aug",
"Sep",
"Oct",
"Nov",
"Dec"};
static const char * const wdays[]={
"Sun",
"Mon",
"Tue",
"Wed",
"Thu",
"Fri",
"Sat"};
void rfc822_mkdate_buf(time_t t, char *buf)
{
struct tm *p;
int offset;
#if USE_TIME_ALTZONE
p=localtime(&t);
offset= -(int)timezone;
if (p->tm_isdst > 0)
offset= -(int)altzone;
if (offset % 60)
{
offset=0;
p=gmtime(&t);
}
offset /= 60;
#else
#if USE_TIME_DAYLIGHT
p=localtime(&t);
offset= -(int)timezone;
if (p->tm_isdst > 0)
offset += 60*60;
if (offset % 60)
{
offset=0;
p=gmtime(&t);
}
offset /= 60;
#else
#if USE_TIME_GMTOFF
p=localtime(&t);
offset= p->tm_gmtoff;
if (offset % 60)
{
offset=0;
p=gmtime(&t);
}
offset /= 60;
#else
p=gmtime(&t);
offset=0;
#endif
#endif
#endif
offset = (offset % 60) + offset / 60 * 100;
sprintf(buf, "%s, %02d %s %04d %02d:%02d:%02d %+05d",
wdays[p->tm_wday],
p->tm_mday,
months[p->tm_mon],
p->tm_year+1900,
p->tm_hour,
p->tm_min,
p->tm_sec,
offset);
}
const char *rfc822_mkdate(time_t t)
{
static char buf[50];
rfc822_mkdate_buf(t, buf);
return (buf);
}
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