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From: rml@hpfcdc.HP.COM (Bob Lenk)
Newsgroups: comp.unix.wizards
Subject: Re: pseudo terminals
Message-ID: <5980011@hpfcdc.HP.COM>
Date: Wed, 4-Nov-87 16:49:54 EST
Article-I.D.: hpfcdc.5980011
Posted: Wed Nov  4 16:49:54 1987
Date-Received: Sun, 8-Nov-87 14:44:17 EST
References: <186@aiva.ed.ac.uk>
Organization: HP Ft. Collins, Co.
Lines: 11

> What would be really useful would be a device that merely passed everything
> from its slave end to its master end, including ioctls.  Ioctls calls at the
> slave end would (optionally? - certainly in the case of GET ioctls) suspend
> until the master end had processed it.  Has any unix system had such a device?

HP's implementation of ptys includes extensions to permit the master
side to trap and/or process open, close, and ioctl requests from the
slave side.

		Bob Lenk
		{ihnp4, hplabs}!hpfcla!rml