Re: Out of ptys

Alan Cox (alan@lxorguk.ukuu.org.uk)
Tue, 25 Aug 1998 18:09:10 +0100 (BST)

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> > > > > ioctl(1, TCGETS, 0xbffff1dc) = -1 EINVAL (Invalid argument)
> > > > > ioctl(2, TCGETS, 0xbffff1d0) = -1 EINVAL (Invalid argument)
>
> Don't you love the way these replies start! Always with "wrong" or "no".
> The "program" to which you refer is telnetd. The ioctls failed because
> there were no open fds 1 or 2, yet an open returned 3. Telnetd failed
> because this was unexpected behavior.

As it happens the "wrong" is precisely the correct answer.

Open returned 3 because fd 1 and 2 are open. The ioctls you quote prove
that to be true. The error would be different if the the file handle was
closed. (EBADF)

Alan

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