Re: vlock command

Alexey Gladkov
2012-11-15T09:35:48Z

15.11.2012 12:48, Petr Pisar wrote:
> It's similar but insufficient. The difference between your clear_str[]
> = "\33[H\33[J" and my string is my way clears scroll-back buffer of Linux
> virtual terminal too. This prevents from reading history using Shift-PgUp
> while the terminal is locked. Read current console_codes(4) page, especially
> search for word "buffer".
>
> So what I ask is to prepend "\33[3J" to your clear_str[]. This even users with
> older kernel not implementing this code get console cleared.

Sounds reasonable.

> If I understand the code correctly, you clear screen only if it's a virtual
> terminal. I have no idea how usefull is vlock on other terminals (I use
> "screen" there), so I do not request any change in this matter.

Ok. This is what I wanted to find out.

Guys, I want to release the new version of kbd next month. This will
be the first kbd release with the vlock. Do you have any more
suggestions on vlock?

--
Rgrds, legion