Subject: Re: TIOCGPGRP
To: matthew green <firstname.lastname@example.org>
From: Jason Downs <email@example.com>
Date: 05/09/1996 20:01:08
In message <199605100217.MAA17569@eterna.com.au>,
matthew green writes:
> So, stupid question time: is there any good reason for not even allowing ro
> to call TIOCGPGRP on any tty? It's rather useless if you can only get the
> process group of your own controlling tty.
>i don't have an answer, but, this seems somewhat related to
>the change from BSD getpgrp() to POSIX getpgrp() 4.4 gave
>us .. i've proposed that we have a getpgid() call that
>is identical to the old getpgrp() (and also happens to be
>compatible with svr4 :-).
>if this is ever added, TIOCGPGRP could perhaps be changed also.
Well, for the client I needed this for, I just changed the 1 line in tty.c
to allow root to call TIOCGPGRP for any tty. It seems _very_ silly to
restrict the ioctl/tcgetpgrp() to one's own controlling tty.
Jason Downs (503) 256-8535 -/- (503) 952-3749
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