extract_lockdownd_services.rb

extract_lockdownd_services.rb

#!/usr/bin/env ruby

fname = ARGV.shift
fname || exit!

offset = nil
size = nil

`otool -l \"#{fname}\" |grep -A11 ^Section`.split(/^--$/).each do |sect_txt|
  lines = sect_txt.lines.map(&:chomp)
  info = Hash[ lines[1..-1].map{|ln| ln.strip.split(' ',2)} ]
  segname, sectname, off, sz = info.values_at("segname","sectname","offset","size")
  if segname == "__TEXT" and sectname == "__services"
      offset = off.to_i
      size = sz.hex
      break
  end
end

unless offset and size
    $stderr.puts "Couldn't find __TEXT,__services"
    exit!
end

dat = IO.binread(fname, size, offset)

outfile = "#{fname}_services.plist"
$stderr.puts "Writing #{size} bytes to #{outfile}"
File.open(outfile, "wb") {|out| out.write dat}