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MACアドレスからベンダコードを検索するコード(oui.txtを利用)
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#!/usr/bin/env ruby | |
# -*- coding: utf-8 -*- | |
# oui.txtの入手方法: | |
# curl -O http://standards.ieee.org/develop/regauth/oui/oui.txt | |
# OUIデータベースの読み込み | |
def oui_store filename,o | |
# ファイルから読み込む | |
File.read( filename ).split(/\n/).grep(/\(hex\)/).each{|line| | |
code,note = line.sub(/^\s+/,'').split(/\s+/,3).values_at(0,2) | |
o[code.downcase.gsub(/[^\da-f]/,'')] = note | |
} | |
# 例外 | |
o.merge!({ | |
"080027" => "VirtualBox Guest", | |
"525400" => "QEMU/KVM Guest", | |
}) | |
o.keys.length | |
end | |
# MAC -> OUIコーポレートコード | |
def ouiquery mac,db | |
db[ mac.downcase.gsub(/[^\da-f]/,'').slice(0,6) ] | |
end | |
#----#----#----#----#----#----#----#----#----#----#----#----#----#----#----#----#----#----# | |
# OUIデータベースを読み込み | |
ouidb = Hash.new | |
file = 'oui.txt' | |
macaddress = ['8c:2d:aa:5e:05:1b', | |
'00:30:48:B1:BF:5E', | |
'52-54-00-e7-e9-e4', | |
] | |
printf "Reading from: %s ...", file | |
r = oui_store file,ouidb | |
printf "done. %d entries.\n\n", r | |
# 検索 | |
macaddress.each{ |mac| | |
printf " %s -> %s\n", mac, ouiquery( mac, ouidb ) | |
} |
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