TIOCTTYGSTRUCT

From: Andries.Brouwer@cwi.nl
Date: Fri Mar 28 2003 - 10:49:46 EST


Hi Ted,

Would you mind if I removed TIOCTTYGSTRUCT?

I suppose you don't need it any longer, and otherwise
could easily add some debugging stuff again when needed.
This ioctl exports lots of kernel-internal stuff that
userspace has no business looking at.
The direct reason I ask is that it also exports a kdev_t,
and the meaning of that will change.

Andries

>From Changelog:
Sat Nov 26 11:59:24 1994 Theodore Y. Ts'o (tytso@rt-11)

        * tty_io.c (tty_ioctl): Add support for the new ioctl
                TIOCTTYGSTRUCT, which allow a kernel debugging program
                direct read access to the tty and tty_driver structures.
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