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0 parents commit 7acf9023b5fc806ec27bac1c1bc9b52dfbf826fd @CodeGnome committed Sep 23, 2011
5 .gitattributes
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+*.sh export-subst
+README.asciidoc export-subst
+.gitattributes export-ignore
+.gitignore export-ignore
24 .gitignore
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+# Temporary files
+# VIM files
+# RDoc and YARD files
+# HTML output from ASCIIDoc
+# Ignore machine-specific bundler files.
+# Ignore gem artifacts.
2 .rvmrc
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+rvm use ruby-1.9.2-p290@oui_lookup || return
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+Copyright © 2011 Todd A. Jacobs
+All rights reserved.
8 Gemfile
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+source :rubygems
+gem 'rest-client'
+gem 'nokogiri'
+group :test do
+ gem 'minitest'
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+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
105 README.asciidoc
@@ -0,0 +1,105 @@
+== Copyright and Licensing
+Copyright (C) 2011 Todd A. Jacobs +
+All rights reserved.
+=== Software License
+image:[GNU General Public
+License, Version 3]
+The software is licensed under the
+[GPLv3]. The LICENSE is also
+included in the source tree.
+=== README License
+// Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United
+// States License
+<a rel="license"
+alt="Creative Commons License" style="border-width:0"
+src="" /></a><br
+/><span xmlns:dct=""
+href="" property="dct:title"
+rel="dct:type">OUI_Lookup README</span> by <a
+property="cc:attributionName" rel="cc:attributionURL">Todd A. Jacobs</a>
+is licensed under a <a rel="license"
+Commons Attribution-NonCommercial-ShareAlike 3.0 United States
+== Purpose
+The IEEE hands out Organizationally Unique Identifiers to companies for
+use in such things as manufacturing NIC cards. The first three octets of
+a MAC address should be the manufacturer's prefix, so this gem may be
+useful in identifyng NIC cards or constructing valid MAC addresses.
+== Installation and Usage
+The install instructons assume RVM with Ruby 1.9.2. The dependencies
+aren't heavy, and it would probably take less time to backport the tests
+and syntax to 1.8.7 than it did to write this sentence, but life is like
+that sometimes. Don't file a bug about it; just make sure you are using
+the correct Ruby within RVM.
+.Installing the OUI_Lookup Gem
+gem install oui_lookup
+.Running the CLI
+oui_lookup <mac_address_or_prefix>
+.Using the Library
+require 'oui_lookup'
+== Sample Output
+No screenshots here, just samples of what you can expect from running
+this thing.
+The input format is pretty flexible. It will take both a three-octet
+prefix, as well as a full MAC address with six octets. It's also pretty
+agnostic about separators (or the lack thereof).
+.Looking up a valid prefix
+$ oui_lookup 000000
+00-00-00 (hex) XEROX CORPORATION
+000000 (base 16) XEROX CORPORATION
+ M/S 105-50C
+ WEBSTER NY 14580
+.Looking up a MAC address with an unregistered prefix
+$ oui_lookup FF:FF:FF:FF:FF:FF
+OUI not found: FF-FF-FF
+== Further Reading
+.[Ruby Version Manager (RVM)]
28 Rakefile
@@ -0,0 +1,28 @@
+require 'rake'
+require 'rake/testtask'
+require 'bundler/gem_tasks'
+require 'bundler/setup'
+desc 'Update exuberant-ctags'
+task :etags do
+ sh %{etags -R}
+namespace :test do
+ do |t|
+ t.libs << 'test'
+ t.test_files = FileList[ 'test/unit/*rb' ]
+ t.verbose = false
+ end
+ do |t|
+ t.libs << 'test'
+ t.test_files = FileList[ 'test/integration/*.rb' ]
+ t.verbose = false
+ # Uncomment for test runtime profiling.
+ #t.options = '-v'
+ end
+ desc 'Run all tests'
+ task :all => [ 'test:unit', 'test:integration' ]
+task :default => [ 'test:unit' ]
9 bin/oui_lookup
@@ -0,0 +1,9 @@
+#!/usr/bin/env ruby
+require_relative '../lib/oui_lookup'
+unless ARGV.size == 1
+ puts "Usage: #{File.basename $0} <MAC>"
+ exit 1
17 lib/oui_lookup.rb
@@ -0,0 +1,17 @@
+#!/usr/bin/env ruby
+module OUI_Lookup
+ require_relative 'oui_lookup/version'
+ require_relative 'oui_lookup/lookup'
+if __FILE__ == $0
+ a = ARGV.last.to_s.scan(/\h{2}/).join
+ m = a.empty? \
+ ? '000510' : a
+ l = m
+ h = l.lookup
+ n = l.parse h
+ v = l.vendor n
+ puts v
72 lib/oui_lookup/lookup.rb
@@ -0,0 +1,72 @@
+# Look up an IEEE Organizationally Unique Identifier (OUI).
+module OUI_Lookup
+ class Lookup
+ require 'rest-client'
+ require 'nokogiri'
+ URL = ''
+ attr :oui, :silent_searching
+ # Create an OUI_Lookup search object, given a MAC address or vendor
+ # prefix.
+ def initialize oui, silent_searching=false
+ @oui = oui.to_s.scan /\h{2}/
+ validate!
+ # The oui.txt file lists three-octet OUI prefixes in both
+ # dash-separated and conjoined formats. The OUI with dashes seems
+ # less likely to be confused with other data on the page (say, ZIP
+ # codes) and makes a more reliable search term.
+ @oui = @oui.take(3).join '-'
+ @silent_searching = silent_searching
+ end
+ # Returns the results of a successful lookup, or a "not found" error.
+ def run
+ result = vendor(parse lookup)
+ if result
+ puts result unless @silent_searching
+ else
+ warn "OUI not found: " << @oui unless result
+ end
+ return result
+ end
+ # Returns the raw HTML document from a POST search.
+ def lookup
+ printf "Searching...\n\n" unless @silent_searching
+ html = URL, { x: @oui }
+ error_page?(html) ? raise( RuntimeError, html ) : html
+ end
+ # Check for error pages that improperly return a 2xx status code.
+ #
+ # [Sorry]
+ # Apparently included on all error pages with a 200 status code.
+ # [Searching for nothing]
+ # POST an invalid or empty search term (e.g. x is an array).
+ # [no match for the query]
+ # No match found. Not actually an error, per se. Handled in #run.
+ def error_page? html
+ return true if html.include? 'Searching for nothing'
+ end
+ # Return a Nokogiri nodelist.
+ def parse html
+ node_list = Nokogiri::HTML.parse html
+ end
+ # Return text node containing vendor data.
+ def vendor node_list
+ node = node_list.at_xpath('//pre')
+ node ? node.text : nil
+ end
+ private
+ # Returns true if @oui looks like a MAC address or vendor prefix.
+ def validate!
+ raise ArgumentError, "invalid MAC length: #{@oui.size}" \
+ unless @oui.size == 3 || @oui.size == 6
+ end
+ end # class Lookup
+end # module OUI_Lookup
3 lib/oui_lookup/version.rb
@@ -0,0 +1,3 @@
+module OUI_Lookup
+ VERSION = '1.0.0'
23 oui_lookup.gemspec
@@ -0,0 +1,23 @@
+# -*- encoding: utf-8 -*-
+$:.push File.expand_path('../lib', __FILE__)
+require 'oui_lookup/version'
+ do |s|
+ = 'oui_lookup'
+ s.version = OUI_Lookup::VERSION
+ s.authors = ['Todd A. Jacobs']
+ = ['']
+ s.homepage = "{}"
+ s.summary = %q{Lookup IEEE Organizationally Unique Identifiers.}
+ s.description = %q{Find OUI prefixes using the IEEE public registry.}
+ s.files = `git ls-files`.split("\n")
+ s.test_files = `git ls-files -- {test,spec,features}/*`.split("\n")
+ s.executables = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
+ s.require_paths = ['lib']
+ s.required_ruby_version = '>= 1.9.2'
+ # specify any dependencies here; for example:
+ s.add_development_dependency 'minitest'
+ s.add_runtime_dependency 'rest-client'
+ s.add_runtime_dependency 'nokogiri'
17 test/integration/test_oui_lookup_cli.rb
@@ -0,0 +1,17 @@
+require 'test_helper'
+require 'minitest/autorun'
+describe 'bin/oui_lookup' do
+ let(:binary) { 'bin/oui_lookup' }
+ it 'should display usage with no arguments' do
+ `#{binary}`.must_match /^Usage:/
+ end
+ it 'should return Sytek Inc.' do
+ search = `#{binary} 000010`
+ search.must_match /SYTEK INC\./
+ end
+ it 'should return not found' do
+ search = `#{binary} FFFFFF 2>&1`
+ search.must_match /\AOUI not found: FF-FF-FF/
+ end
+end # describe 'bin/oui_lookup'
26 test/integration/test_oui_lookup_network_functions.rb
@@ -0,0 +1,26 @@
+require 'test_helper'
+require 'resolv'
+require 'minitest/autorun'
+describe 'OUI_Lookup network integration' do
+ let(:url) { OUI_Lookup::Lookup::URL }
+ it 'should use a resolvable hostname for lookups' do
+ hostname = url.split('/')[2]
+ Resolv.getaddress(hostname).
+ must_match /(\d{1,3}.){3}\d{1,3}/
+ end
+ it 'should successfully returns a web page' do
+ RestClient.head(url).code.must_equal 200
+ end
+end # describe 'OUI_Lookup network integration'
+describe 'sample lookups' do
+ let(:silent) { true }
+ it 'should return Xerox' do
+'000000', silent).run.must_match /Xerox/i
+ end
+ it 'should return Infinite Shanghai Communication Terminals Ltd.' do
+'000510', silent).run.
+ must_match /Infinite Shanghai Communication Terminals Ltd\./
+ end
+end # describe 'sample lookups'
2 test/test_helper.rb
@@ -0,0 +1,2 @@
+require 'oui_lookup'
+require 'minitest/spec'
31 test/unit/test_oui_lookup.rb
@@ -0,0 +1,31 @@
+require 'test_helper'
+require 'minitest/autorun'
+describe OUI_Lookup::Lookup do
+ it 'should use a valid URI prefix' do
+ OUI_Lookup::Lookup::URL.must_match %r{^http://}
+ end
+ describe '#new' do
+ let(:prefix) { '00-00-00' }
+ let(:mac_address) { '11-22-33-44-55-66' }
+ it 'should accept three conjoined octets' do
+'000000').oui.must_equal prefix
+ end
+ it 'should accept three colon-separated octets' do
+'00:00:00').oui.must_equal prefix
+ end
+ it 'should accept three dash-separated octets' do
+'00-00-00').oui.must_equal prefix
+ end
+ it 'should accept six octets' do
+'112233445566').oui.must_equal '11-22-33'
+ end
+ it 'should raise error with too few octets' do
+ lambda { '1122'}.must_raise ArgumentError
+ end
+ it 'should raise error with too many octets' do
+ lambda { '11223344556677'}.must_raise ArgumentError
+ end
+ end # describe #new
+end # describe OUI_Lookup::Lookup

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