if (debug) log_d("D rfctime");
static char *rfctime(time_t t, char *buf){	struct tm *tp;	if (debug)		log_d("D rfctime");	tp = gmtime(&t);	if (tp == 0) {		log_d("gmtime failed!?!?!?");		return 0;	}	strftime(buf, 31, "%a, %d %b %Y %H:%M:%S GMT", tp);	return buf;}