prog_poll
cc = prog_poll(fdmaskp, 1, (int)(sec * 1000));
cc = prog_poll(fdmaskp, 1, (int)(sec * 1000));
if ((i = prog_poll(set, 2, timeout ? (timeout->tv_sec * 1000 +
retval = prog_poll(set, 1, wait.tv_sec * 1000 + wait.tv_usec / 1000);