Function network_open

src/network.c:231–381

* \brief Open network port using STATE(rig) data * * Open network port using STATE(rig) data. * NB: The signal PIPE will be ignored for the whole application. * * \param rp Port data structure (must spec port id eg hostname:port) * \param default_port Default network socket port * \return RIG_OK or < 0 if error */

 * \return RIG_OK or < 0 if error
 */
int network_open(hamlib_port_t *rp, int default_port)
{
    int fd;             /* File descriptor for the port */
    int status;
    struct addrinfo hints, *res, *saved_res;
    struct in6_addr serveraddr;
    struct sockaddr_in client;
    char hoststr[256], portstr[6] = "";

#ifdef __MINGW32__
    status = network_init();

    if (status != RIG_OK) { return (status); }

#endif

    if (!rp)
    {
        return (-RIG_EINVAL);
    }

    memset(&hints, 0, sizeof(hints));
    hints.ai_flags = NI_NUMERICSERV;
    hints.ai_family = AF_UNSPEC;

    if (rp->type.rig == RIG_PORT_UDP_NETWORK)
    {
        hints.ai_socktype = SOCK_DGRAM;
        rig_debug(RIG_DEBUG_VERBOSE, "%s: UDP connect\n", __func__);
    }
    else
    {
        hints.ai_socktype = SOCK_STREAM;
        rig_debug(RIG_DEBUG_VERBOSE, "%s: TCP connect\n", __func__);
    }

    if (rp->pathname[0] == ':' && rp->pathname[1] != ':')
    {
        SNPRINTF(portstr, sizeof(portstr) - 1, "%s", rp->pathname + 1);
    }
    else
    {
        if (strlen(rp->pathname))
        {
            status = parse_hoststr(rp->pathname, sizeof(rp->pathname), hoststr, portstr);

            if (status != RIG_OK) { return (status); }

            rig_debug(RIG_DEBUG_TRACE, "%s: hoststr=%s, portstr=%s\n", __func__, hoststr,
                      portstr);

        }

        if (strlen(portstr) == 0)
        {
            SNPRINTF(portstr, sizeof(portstr), "%d", default_port);
        }
    }