How to use sockets?

[Jason May]

Is anyone out there experienced with sockets?  I'm trying to
get two processes to talk to one another, with little success.
I've managed to get the two sockets to connect, but I can't
get any data to pass.  Also, when I close() the sockets, the
associated files (I'm using AF_UNIX) don't go away - is this
a bug, or should things be this way?
Does anyone have some working code I can look at?

Thanks in advance,
Jason (may at husc8.harvard.edu)