> Out of interest, what are these?
>
> User A dials up to a linux machine, runs a program which opens /dev/tty
> and hangs around in the background. User A logs out, and User A's
> program catches signals so it doesn't exit. User B logs in, and starts
> to do work. User A's program can still execute a few limited tty
> ioctl's, including ones which can reconfigure termios settings, such
> as
Why? Why allow program playing with someone else-s configuration? Is
it needed for something?
> the baud rate, line echoeing, etc.
Pavel
-- I'm really pavel@atrey.karlin.mff.cuni.cz. Pavel Look at http://atrey.karlin.mff.cuni.cz/~pavel/ ;-).