Class: DHCP::OptHexString

Inherits:
OptData show all
Defined in:
lib/dhcp/options.rb

Overview

Class for DHCP options containing data that is most often displayed as a string of hexadecimal digit pairs joined by colons (i.e. ethernet MAC addresses)

Instance Attribute Summary

Attributes inherited from OptData

#data

Attributes inherited from Opt

#name, #opt

Instance Method Summary collapse

Methods inherited from OptData

#get, #initialize, #opt_header, #set, #to_opt, #to_s

Methods inherited from Opt

#initialize, #opt_header, #to_opt, #to_s

Constructor Details

This class inherits a constructor from DHCP::OptData

Instance Method Details

#bin_to_data(data) ⇒ Object 



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# File 'lib/dhcp/options.rb', line 535

def bin_to_data(data)
  data.each_byte.map{|b| "%0.2X" % [b]}.join(':')  ## Convert each byte to hex string and join bytes with ':'
end

#data_to_bin(data) ⇒ Object 



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# File 'lib/dhcp/options.rb', line 530

def data_to_bin(data)
  data = data.gsub(/[ \.:_\-]/,'')    ## Allow various octet separator characters (trim them out)
  ['0' * (data.size % 2)].pack('H*')  ## Pad hex string to even multiple and translate to binary
end