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Date: Sat, 26 Jan 2013 22:11:53 +0100
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: Re: Segfault in Jumbo --stdout

On 26 Jan, 2013, at 21:40 , Frank Dittrich <frank_dittrich@...mail.com> wrote:
> On 01/26/2013 09:19 PM, magnum wrote:
>> On 26 Jan, 2013, at 18:29 , Frank Dittrich <frank_dittrich@...mail.com> wrote:
>>> A better fix is:
>>> 
>>> 
>>> -		if (!strncmp(database.format->params.label, "wpapsk", 6) &&
>>> +		if (database.format->params.label &&
>>> +		    !strncmp(database.format->params.label, "wpapsk", 6) &&
>>> 
>>> 
>>> But that the segfault didn't occur without --rules indicates that
>>> magnum's intended fix do adjust min. length for wpapsk to 8 doesn't
>>> always work.
>> 
>> He said without --stdout, not without --rules. So your proposed patch is the Right Fix[tm]. I will apply it.
> 
> Before I wrote the patch, I tried to reproduce the problem.
> But my first attempt failed, because I used
> $ ./john --wordlist=password.lst --stdout
> instead of
> $ ./john --rules --wordlist=password.lst --stdout

That is strange. The --rules option should have nothing to do with it.

magnum

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