linux-kernel - Re: [PATCH] kernel: escape non-ASCII and control characters in printk()

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Date:	Thu, 23 Jun 2011 20:11:46 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Vasiliy Kulikov <segoon@...nwall.com>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>, Joe Perches <joe@...ches.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	James Morris <jmorris@...ei.org>, Ingo Molnar <mingo@...e.hu>,
	Namhyung Kim <namhyung@...il.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	kernel-hardening@...ts.openwall.com, linux-kernel@...r.kernel.org,
	security@...nel.org
Subject: Re: [PATCH] kernel: escape non-ASCII and control characters in printk()

On Wed, Jun 22, 2011 at 21:07, Vasiliy Kulikov <segoon@...nwall.com> wrote:
> On Wed, Jun 22, 2011 at 19:10 +0100, Alan Cox wrote:
>> If that is set you shouldn't be filtering out unicode, just control codes.
>
> OK.
>
>> Minor other nit is that you might want to allow BEL through and you
>> certainly want to allow tab through.
>
> In what situation do you think BEL makes sense in kernel log?  I cannot
> image the situation.  Alarms should use KERN_EMERG/KERN_ALERT log level.

Does BEL work? Last time I tried fancy things (e.g. color output
depending on the
message level), it didn't work. I only got strange characters.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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