UDP Broadcast IPv4 chat

About code

This project implements the “IPv4 chat” program, which exchanges text broadcast (IPv4 UDP broadcast) messages over a local network segment, with copies running on other machines physically connected to one logical network segment.

The project uses the broadcast IPv4 address 255.255.255.255.

The client code contains a reception thread and a sending thread with an input limit of up to 1007 bytes.

The project is built through the run_first.sh and run_second.sh scripts into docker containers in a common virtual network.

The image for docker containers is written using a multi-stage build and is optimized.

Getting started

1. Docker network

$ docker network create --subnet=172.18.0.0/24 --gateway=172.18.0.1 info

2. Docker image

$ docker build -t udpchat .

3. Run

For Windows

$ .\scriptsWin\run_first.bat  

$ .\scriptsWin\run_second.bat

For Unix

$ chmod +x ./scriptsUnix/run_first.sh
$ ./scriptsUnix/run_first.sh

$ chmod +x ./scriptsUnix/run_second.sh
$ ./scriptsUnix/run_second.sh

4. Stop

For Windows

$ .\scriptsWin\stop.bat  

For Unix

$ chmod +x ./scriptsUnix/stop.sh
$ ./scriptsUnix/stop.sh