Ryszard has asked for the wisdom of the Perl Monks concerning the following question:
Of course, being TCP, there are many different things that can go on during a snoop, so what i'd like to do is find a nice fast way to identify the payload type of a TCP packet.
Specifically i would like to be able to determine if the payload is binary, so i can re-assemble the packets later on for reconstruction.
Idealy I'd like to be able to determine the payload as binary at run time, altho' doing it off line is also an option.
I've been thinking about grabbing the 1st "bunch" of characters, and determining if they're within the printable range, however this method is not fool proof. Doing a more extensive analysis using dipthongs/whitespace/vowels etc i think would be too slow.
I've not written any code (as yet), i'm just looking for suggestions...
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Re: Sniffing binary data, heuristics?
by diotalevi (Canon) on May 25, 2004 at 19:16 UTC | |
by McMahon (Chaplain) on May 25, 2004 at 19:30 UTC | |
by PodMaster (Abbot) on May 26, 2004 at 04:00 UTC | |
Re: Sniffing binary data, heuristics?
by graff (Chancellor) on May 26, 2004 at 06:10 UTC | |
Re: Sniffing binary data, heuristics?
by NetWallah (Canon) on May 25, 2004 at 20:03 UTC | |
Re: Sniffing binary data, heuristics?
by DrHyde (Prior) on May 26, 2004 at 07:38 UTC | |
by Ryszard (Priest) on May 26, 2004 at 07:58 UTC | |
by cheshirecat (Sexton) on May 26, 2004 at 17:14 UTC |