Server

private fun receiveImage(socket: Socket){
    val inputStream : InputStream = socket.getInputStream()
    val dataInputStream = DataInputStream(inputStream)
    val len = dataInputStream.readInt()
    if(len > 0)
    {
        val byteArray = ByteArray(len)
        dataInputStream.readFully(byteArray, 0, byteArray.size)
        Log.i("DEBUG", "Received: " + byteArray.size.toString() + " bytes from the client.")
    }
}