Date: Fri, 01 Sep 2000 09:10:25 +0200
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
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To: lauras AT softhome DOT net
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In-reply-to: <39AEBA9E.A3E011AF@softhome.net> (message from Laurynas Biveinis
	on Thu, 31 Aug 2000 22:05:50 +0200)
Subject: Re: Symify fixes
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> Date: Thu, 31 Aug 2000 22:05:50 +0200
> From: Laurynas Biveinis <lauras AT softhome DOT net>
> 
> > If you know these
> > functions will always set errno=0 (no POSIX function is required to do
> > that) then your code would be safe.
> 
> To be more exact, these functions do not alter errno at all, if they succeed.
> But this is OK too, unless some previous system function has failed, and this
> failure wasn't handled properly.

The fact that successful operations don't alter errno is the required
behavior.