Main loop

At this point, the peer program is in its main loop.

for (;;) {
    int             n, secs;
    fd_set          rfds, wfds;

    secs = NOTOK;
    rfds = ifds;    /* struct copy */
    wfds = ofds;

    if (smux_fd == NOTOK && !dont_bother_anymore)
        secs = 5 * 60L;
    else if (rock_and_roll)
        FD_SET(smux_fd, &rfds);
    else
        FD_SET(smux_fd, &wfds);
    if (smux_fd >= nfds)
        nfds = smux_fd + 1;

    if ((n = xselect(nfds, &rfds, &wfds, NULLFD, secs)) == NOTOK) {
        LIB_PERROR("failed, xselect");
        exit(-1);
    }

    if (smux_fd == NOTOK && !dont_bother_anymore) {
        if (n == 0) {
            if ((smux_fd = smux_init(debug)) == NOTOK)
                LIB_ERROR2("smux_init: %s [%s]",
                    smux_error(smux_errno),smux_info);
            else
                rock_and_roll = 0;
        }
    } else if (rock_and_roll) {
        if (FD_ISSET(smux_fd, &rfds))
            doit_smux();
    } else if (FD_ISSET(smux_fd, &wfds))
        start_smux();
}