Function SetupMulticastCapture

engine/dlib/src/test/test_mdns.cpp:843–874

    }

    static bool SetupMulticastCapture(MulticastCapture* capture)
    {
        dmSocket::Socket socket = dmSocket::INVALID_SOCKET_HANDLE;
        if (dmSocket::New(dmSocket::DOMAIN_IPV4, dmSocket::TYPE_DGRAM, dmSocket::PROTOCOL_UDP, &socket) != dmSocket::RESULT_OK)
            return false;

        if (dmSocket::SetReuseAddress(socket, true) != dmSocket::RESULT_OK
            || dmSocket::Bind(socket, dmSocket::AddressFromIPString("0.0.0.0"), MDNS_PORT) != dmSocket::RESULT_OK
            || dmSocket::SetBlocking(socket, false) != dmSocket::RESULT_OK)
        {
            dmSocket::Delete(socket);
            return false;
        }

        const dmSocket::Address multicast_address = dmSocket::AddressFromIPString(MDNS_MULTICAST_IPV4);
        bool joined = dmSocket::AddMembership(socket, multicast_address, dmSocket::AddressFromIPString("0.0.0.0"), 255) == dmSocket::RESULT_OK;

        dmSocket::Address local_address;
        if (dmSocket::GetLocalAddress(&local_address) == dmSocket::RESULT_OK && local_address.m_family == dmSocket::DOMAIN_IPV4)
        {
            joined = dmSocket::AddMembership(socket, multicast_address, local_address, 255) == dmSocket::RESULT_OK || joined;
        }

        if (!joined)
        {
            dmSocket::Delete(socket);
            return false;
        }

        capture->m_Socket = socket;
        return true;
    }

    static bool SetupSendSocket(ScopedSocketHandle* socket)
    {