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Tool : Length Distribution Chart |
Packet Length Distribution Chart
This tool is part of a
series of utilities meant to
illustrate the use of the Unsniff Scripting API and to motivate you to
write your own tools.
Ever wonder about the sizes of packets that criss-cross your network ?
Using the Unsniff Scripting API combined with the power of Ruby - you
can quickly create powerful scripts to see for yourself. We present a
utility written using the Unsniff Scripting API which looks
at captured data and creates a Packet Length Distribution chart. This
tool demonstrates usage of the Unsniff Scripting
API, Ruby,UnleashCharts, and
Fox-Ruby.
Packet Length Distribution Chart
Quick
Info
This tool
demonstrates the following concepts
Using the Unsniff Scripting API to loop over packets
Using the Fox-Ruby toolkit to create GUI programs
Using the free ruby charting library UnleashCharts to create bar charts
This Ruby script uses the Unsniff Scripting API to create a bar-chart
that shows distribution of packet lengths. This utility is
written in the Ruby scripting language, using the Fox-Ruby GUI toolkit,
and the free UnleashCharts charting library.
This script opens a capture file and loops over all captured packets.
Each packet is assigned to a bucket based on its length. The rest of
the code deals with interfacing with the Fx-Ruby toolkit and the
UnleashCharts library.
Download
How to run
- Download the tool (lendist.rb) to a folder on your computer
- Download UnleashCharts.rb charting library to the same
folder
- Execute the script on a capture file (see Usage below)
Usage:
lendist <capture-file-name>
capture-file-name :
Capture file in
Unsniff (*.usnf)
format
Example:
c:\RubyTest>
lendist MyLargeCapture.usnf
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