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From: campbell@maynard.UUCP (Larry Campbell)
Newsgroups: net.unix-wizards
Subject: close oddness in condevs.c
Message-ID: <248@maynard.UUCP>
Date: Sun, 2-Feb-86 21:49:19 EST
Article-I.D.: maynard.248
Posted: Sun Feb  2 21:49:19 1986
Date-Received: Wed, 5-Feb-86 01:26:35 EST
Distribution: net
Organization: The Boston Software Works Inc., Maynard, MA
Lines: 18

In the code for many (but not all) of the dialers supported by condevs.c
(BSD 4.2 version) the descriptor for the dialer is closed this way:

	if (dh > 2)
		close(dh);

Why?  It looks like it's trying to avoid stepping on std{in,out,err},
but I don't see how the dialer descripter could ever actually refer to
std{in,out,err}.  Interestingly, some routines do what I would expect:

	if (dh >= 0)
		close(dh);

What gives?
-- 
Larry Campbell                                 The Boston Software Works, Inc.
ARPA: maynard.UUCP:campbell@harvard.ARPA       120 Fulton Street
UUCP: {harvard,cbosgd}!wjh12!maynard!campbell  Boston MA 02109