file descriptors --> filenames

[hnij%bnl at sri-unix.UUCP]

I am trying to convert a program that runs on the RSX operating system to
run on UNIX, and have found a few system calls that UNIX does not support.
One is the "getnam" function, which returns the filename associated with
a given file desciptor.  Is there any equivalent in UNIX?  I thought there
was, but after looking through the unix manuals, I can't find any.

		John Labovitz
		<hnij at BNL.ARPA>