A friend of mine (Dido) who is learning C programming, has written a tiny chat server / client (peer to peer) program in C. His program is a very good learning curve for anyone desiring to learn basic C socket programming.
The program is writen in a way so it can be easily modified to work over UDP protocol with code:
struct sockaddr_in a;
Here are links to the code of the Chat server/client progs:
To Use the client/server compile on the server host tiny-chat-serer-client.c with:
$ cc -o tiny-chat-server tiny-chat-server.c
Then on the client host compile the client;
$ cc -o tiny-chat-client tiny-chat-client.c
On the server host tiny-chat-server should be ran with port as argument, e.g. ;
$ ./tiny-chat-server 8888
To chat with the person running tiny-chat-server the compiled server should be invoked with:
$ ./tiny-chat-client 18.104.22.168 8888
22.214.171.124 is the IP address of the host, where tiny-chat-server is executed.
The chat/server C programs are actually a primitive very raw version of talk.
The programs are in a very basic stage, there are no condition checks for incorrectly passed arguments and with wrongly passed arguments it segfaults. Still for C beginners its useful …
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