Function iperf_accept

src/iperf_server_api.c:152–234

}

int
iperf_accept(struct iperf_test *test)
{
    int s;
    int ret = -1;
    signed char rbuf = ACCESS_DENIED;
    socklen_t len;
    struct sockaddr_storage addr;

    len = sizeof(addr);
    if ((s = accept(test->listener, (struct sockaddr *) &addr, &len)) < 0) {
        i_errno = IEACCEPT;
        return ret;
    }

    if (test->ctrl_sck == -1) {
        /* Server free, accept new client */
        test->ctrl_sck = s;
        // set TCP_NODELAY for lower latency on control messages
        int flag = 1;
        if (setsockopt(test->ctrl_sck, IPPROTO_TCP, TCP_NODELAY, (char *) &flag, sizeof(int))) {
            i_errno = IESETNODELAY;
            goto error_handling;
        }

#if defined(HAVE_TCP_USER_TIMEOUT)
        int opt;
        if ((opt = test->settings->snd_timeout)) {
            if (setsockopt(s, IPPROTO_TCP, TCP_USER_TIMEOUT, &opt, sizeof(opt)) < 0) {
                i_errno = IESETUSERTIMEOUT;
                goto error_handling;
            }
        }
#endif /* HAVE_TCP_USER_TIMEOUT */

#if defined (HAVE_TCP_KEEPALIVE)
        // Set Control Connection TCP Keepalive (especially useful for long UDP test sessions)
        if (iperf_set_control_keepalive(test) < 0)
            return -1;
#endif //HAVE_TCP_KEEPALIVE

        if (Nread(test->ctrl_sck, test->cookie, COOKIE_SIZE, Ptcp) != COOKIE_SIZE) {
            /*
             * Note this error covers both the case of a system error
             * or the inability to read the correct amount of data
             * (i.e. timed out).
             */
            i_errno = IERECVCOOKIE;
            goto error_handling;
        }
        FD_SET(test->ctrl_sck, &test->read_set);
        if (test->ctrl_sck > test->max_fd) test->max_fd = test->ctrl_sck;

        if (iperf_set_send_state(test, PARAM_EXCHANGE) != 0)
            goto error_handling;
        if (iperf_exchange_parameters(test) < 0)
            goto error_handling;
        if (test->server_affinity != -1) {