Date: Sun, 09 Mar 2003 00:39:11 +0200
From: "Eli Zaretskii" <eliz AT elta DOT co DOT il>
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To: dj AT delorie DOT com
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In-reply-to: <200303081703.h28H3Yl05143@envy.delorie.com> (message from DJ
	Delorie on Sat, 8 Mar 2003 12:03:34 -0500)
Subject: Re: New POSIX: pwrite [PATCH]
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> Date: Sat, 8 Mar 2003 12:03:34 -0500
> From: DJ Delorie <dj AT delorie DOT com>
> 
> > I think there are bits there that tell this.  These are those two
> > bits which `isatty' currently uses.
> > 
> > Why do you think these bits are not enough?
> 
> The two bits are defined as "is stdin" and "is stdout".  At the very
> least, we should be checking for *either* of those bits, not *both* of
> them.

IIRC, they are always set both at once.

> And there are no bits for the AUX device, which should be considered a
> terminal.

But DOS terminals are never connected to AUX, are they?  Unix
terminals are connected to a serial port, but not DOS terminals.

> Do we have any other call that looks at just the "is a device" bit
> in that dos call?

`stat'/`fstat' return a character-device bit set for devices.  (I
assume you were asking about Posix way of getting at that.)