linux-kernel - Re: [PATCH 0/2] vsprintf: ignore %n again

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Message-Id: <201309191111.HEI73985.FMOVFHtQFLOOSJ@I-love.SAKURA.ne.jp>
Date:	Thu, 19 Sep 2013 11:11:57 +0900
From:	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
To:	keescook@...omium.org
Cc:	viro@...iv.linux.org.uk, linux-kernel@...r.kernel.org,
	joe@...ches.com, linux@...izon.com, dan.carpenter@...cle.com,
	JBeulich@...e.com, kosaki.motohiro@...il.com,
	akpm@...ux-foundation.org
Subject: Re: [PATCH 0/2] vsprintf: ignore %n again

Kees Cook wrote:
> > ---------- output start ----------
> > const : literal
> > not const : const char *
> > not const : const char []
> > const : const char * const
> 
> What version of gcc did you use? I don't get the last as const, for
> some reason. And as Dan mentions, shouldn't const char[] be detected
> as const too?

This worked on

  gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-3)
  gcc (GCC) 3.3.5 (Debian 1:3.3.5-13)

with -On (where n != 0), but didn't work on

  gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3

. Oops...
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