#!/usr/bin/evn python3

import socket
import struct
import logging
import argparse


def main():
    """
    """
    parser = argparse.ArgumentParser()
    parser.add_argument('--host', default='0.0.0.0')
    parser.add_argument('--port', default=3306, type=int)

    args = parser.parse_args()
    host = args.host
    port = args.port

    server_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM, 6)
    server_sock.bind(host, port)
    server_sock.listen(128)

    #
    client_sock, addrs = server_sock.accept()

    client_sock.send(b'hello world.')


main()
