Sharing TCP socket between application in linux

Question

I want to share the existing TCP socket from the main application to the second one on the device and continue communication with the client. Applications work in the Linux system. I found in QAbstractSocket documentation that I should bind the socket with mode QAbstractSocket::ShareAddress, but I can't achieve a working example. I tried to share the socket using a socket descriptor or create a QTcpSocket object with the IP address and port.

The demo implementation server-side

[First application]

Reimplemented incomingConnection on the server:

void InternalTcpServer::incomingConnection(qintptr socketDescriptor)
{
    QTcpSocket *newSocket = new QTcpSocket();
    newSocket->bind(QHostAddress("0.0.0.0"), 0 , QAbstractSocket::ShareAddress);
    newSocket->setSocketDescriptor(socketDescriptor);
    
    this->addPendingConnection(newSocket);

    emit internalNewConnection();
}

The communication is correct and communication with client is possible.

[Second application]

Try opening the socket using socket descriptor in the second application on the device:

bool TransmitterServer::initSocket(qintptr socketDescriptor)
{
    m_tcpSocket = new QTcpSocket();
    m_tcpSocket->setSocketDescriptor(socketDescriptor);

    if(m_tcpSocket->state() == QAbstractSocket::ConnectedState){
        qDebug() << "Socket connected";
        return true;
    }

    qDebug() << "Socket doesn't connected.";

    return false;
}

Try opening the socket using the address and port in the second application on the device:

bool TransmitterServer::initSocket(QString peerAddress, QString peerPort)
{
    m_tcpSocket = new QTcpSocket();

    if(m_tcpSocket->bind(QHostAddress(peerAddress), peerPort.toInt(), QAbstractSocket::ShareAddress)){
        qDebug() << "Socket binded";
        return true;
    }else{
        qDebug() << "Can't bind socket " << m_tcpSocket->error();
    }
    return false;
}

Is it possible to achieve it on the server-side?