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Class: Resolv::DNS::Message::MessageEncoder

Do not use. This class is for internal use only.
Relationships & Source Files
Inherits: Object
Defined in: lib/resolv.rb

Class Method Summary

Instance Method Summary

Constructor Details

.new {|_self| ... } ⇒ MessageEncoder

Yields:

  • (_self)

Yield Parameters:

  • _self (MessageEncoder) —

    the object that the method was called on

[ GitHub ] 

  


# File 'lib/resolv.rb', line 1479



def initialize
  @data = ''.dup
  @names = {}
  yield self
end


  







Instance Method Details



  

    #put_bytes(d)  
  

  [ GitHub ]


  

  


# File 'lib/resolv.rb', line 1489



def put_bytes(d)
  @data << d
end


  








  

    #put_label(d)  
  

  [ GitHub ]


  

  


# File 'lib/resolv.rb', line 1537



def put_label(d)
  self.put_string(d.to_s)
end


  








  

    #put_labels(d, compress: true)  
  

  [ GitHub ]


  

  


# File 'lib/resolv.rb', line 1521



def put_labels(d, compress: true)
  d.each_index {|i|
    domain = d[i..-1]
    if compress && idx = @names[domain]
      self.put_pack("n", 0xc000 | idx)
      return
    else
      if @data.length < 0x4000
        @names[domain] = @data.length
      end
      self.put_label(d[i])
    end
  }
  @data << "\0"
end


  








  

    #put_length16  
  

  [ GitHub ]


  

  


# File 'lib/resolv.rb', line 1497



def put_length16
  length_index = @data.length
  @data << "\0\0"
  data_start = @data.length
  yield
  data_end = @data.length
  @data[length_index, 2] = [data_end - data_start].pack("n")
end


  








  

    #put_name(d, compress: true)  
  

  [ GitHub ]


  

  


# File 'lib/resolv.rb', line 1517



def put_name(d, compress: true)
  put_labels(d.to_a, compress: compress)
end


  








  

    #put_pack(template, *d)  
  

  [ GitHub ]


  

  


# File 'lib/resolv.rb', line 1493



def put_pack(template, *d)
  @data << d.pack(template)
end


  








  

    #put_string(d)  
  

  [ GitHub ]


  

  


# File 'lib/resolv.rb', line 1506



def put_string(d)
  self.put_pack("C", d.length)
  @data << d
end


  








  

    #put_string_list(ds)  
  

  [ GitHub ]


  

  


# File 'lib/resolv.rb', line 1511



def put_string_list(ds)
  ds.each {|d|
    self.put_string(d)
  }
end


  








  

    #to_s  
  

  [ GitHub ]


  

  


# File 'lib/resolv.rb', line 1485



def to_s
  return @data
end