Re: capturing from a named pipe - other file formats

[Jeff Morriss <jeff.morriss.ws () gmail com>]

Rolf Fiedler wrote:
> At the moment wireshark only supports the libpcap trace file format when 
> capturing from a named pipe or stdin. I would like to extend this to 
> support the EyeSDN trace file format for captures from ISDN interfaces. 
> Would this cause any problems? What would be a good place to start? The 
> EyeSDN trace file format has a magic at the start so the file format 
> could be detected. Or would we need an additional command line parameter 
> to specify the format?

You'd probably need another command line argument.  Figuring out the 
file encapsulation requires (I believe) the ability to seek within the 
file--something that doesn't work with pipes.  To avoid that you'd have 
to tell the software what the encapsulation is.
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