IRC Server Implementation in C++

A custom Internet Relay Chat (IRC) server implementation supporting core RFC 1459 protocol specifications, designed for multi-client communication with channel management capabilities.

Key Features

Protocol Compliance

• Implements core RFC 1459 commands (NICK, USER, JOIN, PRIVMSG)
• Supports standard reply codes (RPL_WELCOME, ERR_NICKNAMEINUSE, etc.)

Server Functionality

• Concurrent client handling using I/O multiplexing (select/poll)
• Channel management with operators
• User authentication system
• Channel modes (+n, +t, +i) and topic management

Client Capabilities

• Channel creation/joining using JOIN command:
  • Create new channels by joining non-existent names
  • Join multiple channels simultaneously
  • Handle channel keys/passwords (+k mode)
  • Receive proper error responses (ERR_NOSUCHCHANNEL, ERR_TOOMANYCHANNELS)
• Multi-channel participation
• Private messaging with PRIVMSG