主题：Linux下简单的局域网聊天工具 - 使用C语言开发

The Linux instant messaging software described here is a simple chat tool developed in C specifically for use in a local area network (LAN) on the Linux operating system. This software, known as "Main", provides users with the ability to communicate with one another in real-time, exchanging messages and engaging in conversations seamlessly within the confines of their network environment. The emphasis on simplicity is evident in the design and functionality of the software, which aims to deliver a user-friendly experience without unnecessary complexities or additional features. The development of Main underscores the importance of effective communication in a networked setting, and its utility lies in its ability to facilitate quick and convenient interactions among users in a Linux LAN. By leveraging the power of C programming and the flexibility of the Linux platform, Main offers a streamlined solution for those seeking a straightforward and efficient instant messaging tool for their local network communications.