SIXMONTHS
if ((stt.tv_sec > now) || (stt.tv_sec < now - SIXMONTHS))
if ((sbp->st_mtime + SIXMONTHS) <= now)
if ((arcn->sb.st_mtime + SIXMONTHS) <= time(NULL))
if (ftime + SIXMONTHS > lnow && ftime < lnow + SIXMONTHS)