How to communicate over LAN in Objective C

I am using GNU GCC compiler(XCODE NOT AVAILABLE) for running objective C.I want to send message from one HOST to another over the internal network(Like LAN).I have no Idea how to do 开发者_如何学编程it. Any BUDDY to HElp.

The key to writing a pain-free client for a platform (Windows, Linux, Mac OS X) is using that platform Software Development Kit (SDK).

The SDK will provide tools and platform library to make your development as pain-free as possible.

So your question of asking about compiling Objective-C on Windows sounds like you want to develop a client for Mac OS X or iOS/iPhone platform. This is no easy task for a person asking on SO how to perform this. So I would advise against it.