From: "Luka Marčetić" <paxcoder@gmail.com>
To: musl@lists.openwall.com
Subject: Re: cluts: strerror_r() test
Date: Thu, 14 Jul 2011 21:35:06 +0200 [thread overview]
Message-ID: <4E1F44EA.5080309@gmail.com> (raw)
In-Reply-To: <20110714175509.GK16618@brightrain.aerifal.cx>
On 07/14/2011 07:55 PM, Rich Felker wrote:
> On Thu, Jul 14, 2011 at 12:41:35PM +0200, Luka Marčetić wrote:
>> one). Strerror_r implementations are free to redirect a passed
>> pointer to immutable memory if size(buflen) argument is sufficiently
> I don't see how this can be. [...]
Neither does the standard, ##C lied to me ;-)
>> large. Of course, wanting to write to s[size-1] would SIGSEGV in
> Actually it would probably just corrupt malloc data structures and
> lead to havoc much later in the program. To test you could use a trick
> like the string function tests, but that's really overkill. Just
> allocating a buffer that's large enough, pre-filling it with an
> unusual value, and calling the function with a shorter length
> parameter should work. Then you can check that none of the fill bytes
> were clobbered past the allowed length.
>
> I hope this makes sense...
Unfortunately, no, I don't get any of it.
next prev parent reply other threads:[~2011-07-14 19:35 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-05 0:41 Daily reports: Monday Luka Marčetić
2011-07-05 14:24 ` Daily reports: Tuesday Luka Marčetić
2011-07-06 20:28 ` Daily reports: Wednesday Luka Marčetić
2011-07-07 16:18 ` Szabolcs Nagy
2011-07-07 20:27 ` Luka Marčetić
2011-07-07 20:16 ` Daily reports: Thursday Luka Marčetić
2011-07-08 22:41 ` Daily reports: Friday Luka Marčetić
2011-07-09 1:12 ` Daily reports: Friday - cont Luka Marčetić
2011-07-09 1:38 ` Solar Designer
2011-07-09 11:53 ` Daily reports: Friday Solar Designer
2011-07-09 15:30 ` Luka Marčetić
2011-07-09 22:11 ` Luka Marčetić
2011-07-13 19:46 ` Solar Designer
2011-07-10 14:52 ` Daily reports: Friday (threaded setuid testing) Rich Felker
2011-07-11 22:59 ` Daily cluts reports Luka Marčetić
2011-07-14 9:57 ` cluts: strerror_r() test (was: Daily cluts reports) Solar Designer
2011-07-14 10:41 ` cluts: strerror_r() test Luka Marčetić
2011-07-14 10:47 ` Solar Designer
2011-07-14 17:55 ` Rich Felker
2011-07-14 19:35 ` Luka Marčetić [this message]
2011-07-15 0:09 ` Daily cluts reports Luka Marčetić
2011-07-15 22:47 ` Daily cluts reports - numeric, setuid, and mid-term evaluation Luka Marčetić
2011-07-15 23:51 ` Rich Felker
2011-07-17 0:37 ` Daily cluts reports - setuid reiteration Luka Marčetić
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