[Wlug] Making a pipe or socket look like a file.

I'm trying to extend the functionality of a piece of CAD software i'm using. The software package is called eagle and it has a custom in application scripting language that allows you to access an open CAD document by manipulating a tree of objects. The scripting language is fairly limited when it comes to talking to the outside world and only offers rudimentary file IO. I was wondering if any of you know how to make one end of a unix socket look like a file?