Chat_vinllen

In Unix-like OS, this projects can chatting and sending file between two host. Because it's not easy to across different NAT. My solution is to use a another host which has a public address to forwarding the message. <br >

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1. Put the server code in server host, if you want test and doesn't have a server hos, you can contact me and use my server
2. Start client
3. Register the server address. Register format: [register] myname oppositeName <br > for example: <br > A register: [register] A B <br > B regisger: [register] B A <br >
4. It can chatting directly
5. If you want to send file, use format: [file] filename <br >
6. Use [quit] to quit