FreeNet provides an implementation of the BSD sockets interface as a set of SWIs, in the same way as the Acorn TCP/IP stack does. There is documentation supplied with FreeNet on the SWIs, but essentially they map directly onto the BSD calls.
There are many books and web pages on the subject of BSD sockets programming, and duplicating such information here would be rather wasteful, so instead here's a list of links to some of that information.
Below are some more links to the Requests For Comments (RFCs) and Internet Drafts that describe current and proposed standards and such like for the Internet.
Last modified 10th November 1996 · Comments to webmaster@compton.nu