Vaccine Server

This is a simple implement of server and sokcet communication.

It can deal with multiplexing and lock while another same id login.

Usage:

Read Server

• It can read your current record in register record.

$ make
$ ./read_server ${port number}

Write Server

• It can modify your current record in register record.

$ make
$ ./write_server ${port number}

Login

$ telnet localhost $P{port number}