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From: torek@elf.ee.lbl.gov (Chris Torek)
Newsgroups: comp.unix.wizards
Subject: Re: FIONREAD
Message-ID: <11473@dog.ee.lbl.gov>
Date: 26 Mar 91 19:48:15 GMT
References: <69819@brunix.UUCP>
Reply-To: torek@elf.ee.lbl.gov (Chris Torek)
Organization: Lawrence Berkeley Laboratory, Berkeley
Lines: 11
X-Local-Date: Tue, 26 Mar 91 11:48:15 PST

In article <69819@brunix.UUCP> cgy@cs.brown.edu (Curtis Yarvin) writes:
>What is the most elegant way of duplicating Sun's FIONREAD ioctl, which
>gets the number of bytes readable from a descriptor, on 4.3BSD systems?

The `most elegant' is to avoid it altogether---FIONREAD tends to induce
races---but by far the simplest method of duplicating Sun's FIONREAD
ioctl is to note that Sun *got* it from 4BSD.  All you have to do is
use it.
-- 
In-Real-Life: Chris Torek, Lawrence Berkeley Lab CSE/EE (+1 415 486 5427)
Berkeley, CA		Domain:	torek@ee.lbl.gov