MILLION
interval = random() % (MAX_RTR_SOLICITATION_DELAY * MILLION);
interval = arc4random() % (MAX_RTR_SOLICITATION_DELAY * MILLION);
ifinfo->timer.tv_sec = interval / MILLION;
ifinfo->timer.tv_usec = interval % MILLION;
if ((l = a->tv_usec + b->tv_usec) < MILLION) {
result->tv_usec = l - MILLION;
result->tv_usec = MILLION + l;