Can anyone give me info about a resource (book, website, etc.) where I might be able to find a listing of C code for basic clients and servers for popular internet protocols (HTTP, FTP, SMTP, POP3, etc) and an explanation (optional). I don't need a resource on network programming. I understand that. I just am interested in seeing how the popular internet protocols are implemented using sockets on the client and server side.
(UNIX [BSD] Sockets, not Windows Sockets)