Created
April 12, 2019 08:03
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Nmap の結果を見やすくする
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#! /usr/bin/env ruby | |
require 'open3' | |
class NmapResult | |
IP_ADDRESS_PATTERN = /\d+\.\d+\.\d+\.\d+/ | |
MAC_ADDRESS_PATTERN = /([\dA-F]{2}:){5}[\dA-F]{2}/ | |
attr_reader :lines | |
def self.parse(stdout) | |
_header, *lines, _footer = *stdout.split("\n") | |
lines | |
.slice_when { |_l1, l2| l2.match?(IP_ADDRESS_PATTERN) } | |
.map { |partial_lines| NmapResult.new(partial_lines) } | |
end | |
def initialize(lines) | |
@lines = lines | |
end | |
def ip | |
lines[0][IP_ADDRESS_PATTERN] | |
end | |
def mac_address | |
return nil unless lines[2] | |
lines[2][MAC_ADDRESS_PATTERN] | |
end | |
def device | |
return nil unless lines[2] | |
lines[2][/(?<=\()[\w\s]+(?=\))/] | |
end | |
end | |
stdout, _ = Open3.capture2('sudo nmap -sP 192.168.1.0/24') | |
results = NmapResult.parse(stdout) | |
results.each_with_index do |result, i| | |
puts if i > 0 | |
puts(result.ip) | |
puts("#{result.device} (#{result.mac_address})") if result.device | |
end |
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