Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!cs.utexas.edu!uunet!auspex!guy
From: guy@auspex.auspex.com (Guy Harris)
Newsgroups: comp.unix.questions
Subject: Re: Finding a stream's filename
Message-ID: <2305@auspex.auspex.com>
Date: 28 Jul 89 20:32:04 GMT
References: <440@uop.uop.EDU> <1279@cbnewsl.ATT.COM>
Reply-To: guy@auspex.auspex.com (Guy Harris)
Organization: Auspex Systems, Santa Clara
Lines: 7

>It can be done.  Do an fstat(2) on the file descriptor of interest.  That
>gives you the inode number.  Then open /dev/ and read the entries until
>you find the matching inode number.

Or, better yet, just use the "ttyname" routine (see TTYNAME(3) or
TTYNAME(3C)), if the descriptor is open to a terminal; this saves you
the trouble of reinventing said routine.