DuckChat

UO CS 432: Intro to Networks - Programming Assignments 1 & 2
Uses the Berkley Sockets API with UDP sockets

v1

A client-server chat CLI application

Compile with the provided make file.

$ make all

Usage

NOTE: A server must be launched before clients can join and communicate with each other.

Launching the server

$ ./server <server_ip> <server_port>

Launching a client

$ ./client <server_ip> <server_port> <client_name>

Available commands beyond just sending a message without "/" at the beginning.

• /exit - Logs out the user and quits the client software.
• /join - Subscribes the client to the channel named , server will create the channel if it does not exist.
• /leave - Unsubscribes the client from .
• /list - Lists the names of all channels created on the server.
• /who - Lists the names of the other active users on .
• /switch - Switches the clients active chat channel to .

v2

A client-server chat CLI application that has server-to-server communication. Servers maintain an active network tree and prunes unecessary connections or connections that cause loops in the network.

Compile with the provided make file.

$ make all

Usage

Launching the servers

Servers can be launched the same as before.
$ ./server <server_ip> <server_port>

To link multiple servers together for server-to-server communication you must specify each neighbor following the server's ip and port.
$ ./server <server_ip> <server_port> [[neighbor_ip] [neighbor_port]...]

The start start_servers.sh shell script will launch a few different server tree configurations that can be commented and uncommented out. $ ./start_servers.sh

Launching a client

Clients may join any of the launched servers and the communication between users will be handled by the connected servers. $ ./client <server_ip> <server_port> <client_name>

All the commands as before in v1 are the same.

NOTE: The /who command only shows individuals connected to the client's server they connected to.