Server-Client Application

A simple Linux-based client/server socket application implemented in C. The server handles up to 5 clients simultaneously and supports basic command handling, including execution of some Linux commands.

Server Features

• Client Limit: Allows a maximum of 5 clients to connect simultaneously.
• Command Handler:
  • disconnect: Closes the connection with the client.
  • shell "COMMAND": Executes the specified command on the server and sends the output back to the client. Supports basic Linux commands.

Client Features

• Command-Line Interface: Provides commands to interact with the server.
• Supported Commands:
  • connect <IP_ADDRESS> <PORT>: Connects to the server at the specified IP address and port.
  • disconnect: Disconnects from the server.
  • shell "COMMAND": Sends a shell command to the server and displays the response.

Usage

1. Compile the Program: Run the command make in the terminal.

   make

2. Start the Server: Run the server with the command ./server <port_number>, where <port_number> is a 4-digit number.

   ./server 3000

3. Start the Client: Open a new terminal and run the client with the command ./client.

   ./client
   

Commands

1. Connecting to the Server

• Type connect <IP_ADDRESS> <PORT> in the client terminal.

  connect 127.0.0.1 3000
  

2. Disconnecting from the Server

• Type disconnect in the client terminal.

  disconnect
  

3. Sending a shell command

• Type shell "COMMAND"

  shell "pwd"