From: sos AT prospect DOT com DOT ru (Sergey Okhapkin)
Subject: RE: tty.cc fix.
15 Feb 1998 23:24:33 -0800
Message-ID: <01BD3AC4.7157C360.cygnus.cygwin32.developers@gater.krystalbank.msk.ru>
Reply-To: cygwin32-developers AT cygnus DOT com
To: "'Ian Lance Taylor'" <ian AT cygnus DOT com>
Cc: "cygwin32-developers AT cygnus DOT com" <cygwin32-developers AT cygnus DOT com>

Ian Lance Taylor wrote:
>    From: Sergey Okhapkin <sos AT buggy DOT prospect DOT com DOT ru>
>    Date: Sun, 15 Feb 1998 19:35:16 +0300
>
>    tty.cc	(fhandler_tty_slave::open): call DuplicateHandle() instead of 
copying.
>
> This patch looks wrong.  It looks like it will break the EOF handling.
> You have to remember that the whole point of the handle manipulation
> in tty.cc is so that when the slave is closed, the pipe is closed.  If
> there is somewhere I need to add comments, please let me know.

The code in fhandler_tty_slave::close() closes _both_ fhandler's internal 
handles and ttyp pointed. I see no difference in expect's behavior with and 
without this patch, but with this patch it's safe to open/close tty slave 
in pty_master owner process.

--
Sergey Okhapkin, http://www.lexa.ru/sos
Moscow, Russia
Looking for a job.