Path: utzoo!attcan!lsuc!ncrcan!hcr!john
From: john@hcr.UUCP (John R. MacMillan)
Newsgroups: comp.unix.wizards
Subject: Re: Reading from stderr
Summary: I wouldn't
Message-ID: <330@hcr.UUCP>
Date: 18 Apr 89 21:08:12 GMT
References: <5437@lynx.UUCP> <508@visdc.UUCP> <1094@vsi.COM>
Reply-To: john@hcrvax.UUCP (John R. MacMillan)
Distribution: na
Organization: HCR Corporation, Toronto
Lines: 15

In article <1094@vsi.COM> friedl@vsi.UUCP writes:
|In article <508@visdc.UUCP>, jiii@visdc.UUCP (John E Van Deusen III) writes:
|> Since file
|> descriptors 0, 1, and 2 are all opened with oflag set to O_RDWR, ...
|
|An expansion here: stdin, stdout, and stderr are not opened independantly.
|the terminal device is opened and the resulting fildes is dup-ed twice
|to yield stdout and stderr.

But this isn't required of stdio, is it?  I used systems where stderr
is write-only, and programs which read from it had to be fixed.
-- 
John R. MacMillan		Sometimes you have to go for the two
HCR Corporation			in the bush.
{utzoo,utcsri}!hcr!john