Re: [PATCH] tty_ioctl.4: Remove TIOCTTYGSTRUCT ioctl info

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Hello Peter,

On 11/16/2015 10:39 PM, Peter Hurley wrote:
> Thankfully, TIOCTTYGSTRUCT was removed in v2.5.67 by:
> 
>     commit b3506a09d15dc5aee6d4bb88d759b157016e1864
>     Author: Andries E. Brouwer <andries.brouwer@xxxxxx>
>     Date:   Tue Apr 1 04:42:46 2003 -0800
> 
>     [PATCH] kill TIOCTTYGSTRUCT
> 
>     Only used for (dubious) debugging purposes, and exposes
>     internal kernel state.
> 
> [The git SHA is from Thomas Gleixner's history tree at
> https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git]

Thanks for the report/patch. Man-pages tends to take a conservative
approach about discarding stuff though, since people reading man pages
also need to know about past behavior. Therefore, I instead
just added a note that this ioctl() disappeared in Linux 2.5.67:
"This command was removed in Linux 2.5.67."

Cheers,

Michael

 
> Signed-off-by: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>
> ---
>  man4/tty_ioctl.4 | 8 --------
>  1 file changed, 8 deletions(-)
> 
> diff --git a/man4/tty_ioctl.4 b/man4/tty_ioctl.4
> index 53645d8..c3bee35 100644
> --- a/man4/tty_ioctl.4
> +++ b/man4/tty_ioctl.4
> @@ -471,14 +471,6 @@ For the
>  .B TIOCLINUX
>  ioctl, see
>  .BR console_ioctl (4).
> -.SS Kernel debugging
> -.B "#include <linux/tty.h>"
> -.TP
> -.BI "TIOCTTYGSTRUCT	struct tty_struct *" argp
> -Get the
> -.I tty_struct
> -corresponding to
> -.IR fd .
>  .\"
>  .\" .SS Serial info
>  .\" .BR "#include <linux/serial.h>"
> 


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
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