Implementing Bittorrent Protocol

Question

I am looking for a tutorial/blog post on how to implement bittorrent protocol step by step. How it works? How do you make requests to peers? and talk to trackers.

I

Answer 1

the complete description of bittorrent protocol:

http://jonas.nitro.dk/bittorrent/bittorrent-rfc.html

Answer 2

There is the libtorrent library.

Here's the API documentation and examples.