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