Ethereal-dev: Re: [Ethereal-dev] Crash filtering on proto==smb

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From: Gilbert Ramirez <gram@xxxxxxxxxxxxxxx>
Date: Sat, 21 Feb 2004 21:08:31 -0000
On Sat, 2004-02-21 at 02:54, Guy Harris wrote:
> On Sat, Feb 21, 2004 at 12:21:23AM -0800, Richard Sharpe wrote:
> > If I bring up Ethereal on a capture file, and enter 'proto==smb' into the 
> > filter TE, and click apply, I get the following assert:
> > 
> >  ./ethereal -n ~/netbench_1.cap
> >  
> > ** ERROR **: file ftypes.c: line 464 (fvalue_eq): assertion failed: 
> > (a->ftype->cmp_eq)
> > aborting...
> > Abort trap (core dumped)
> 
> 	proto == smb
> 
> is equivalent to
> 
> 	smb == "proto"
> 
> and I guess the semantic checker in the display filter compiler
> concludes that 'smb', which presumably refers to all the data in the SMB
> item for the protocol tree, can be compared with a string - but the
> display filter virtual machine disagrees.
> 
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I'll take a look into this.

--gilbert