Class: Nesser::MX

Inherits:
Object
  • Object
show all
Defined in:
lib/nesser/packets/rr_types.rb

Overview

Mail exchange record - eg, ‘mail.google.com’ 10.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name:, preference:) ⇒ MX

Returns a new instance of MX.



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# File 'lib/nesser/packets/rr_types.rb', line 214

def initialize(name:, preference:)
  @name = name
  @preference = preference
end

Instance Attribute Details

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/nesser/packets/rr_types.rb', line 212

def name
  @name
end

#preference ⇒ Object

Returns the value of attribute preference.



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# File 'lib/nesser/packets/rr_types.rb', line 212

def preference
  @preference
end

Class Method Details

.unpack(unpacker) ⇒ Object 



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# File 'lib/nesser/packets/rr_types.rb', line 219

def self.unpack(unpacker)
  length = unpacker.unpack_one('n')
  if length < 3
    raise(DnsException, "Invalid MX record")
  end

  preference = unpacker.unpack_one('n')
  name = unpacker.unpack_name()

  return self.new(name: name, preference: preference)
end

Instance Method Details

#pack(packer) ⇒ Object 



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# File 'lib/nesser/packets/rr_types.rb', line 231

def pack(packer)
  length = packer.pack_name(@name, dry_run: true) + 2
  packer.pack('n', length)

  packer.pack('n', @preference)
  packer.pack_name(@name)
end

#to_s ⇒ Object 



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# File 'lib/nesser/packets/rr_types.rb', line 239

def to_s()
  return "#{@preference} #{@name} [MX]"
end