class Resolv::IPv4

A Resolv::DNS IPv4 address.

Constants

Regex
Regex256: Regular expression IPv4 addresses must match.

Attributes

address[R]

The raw IPv4 address as a String.

Public Class Methods

create(arg) click to toggle source

# File lib/resolv.rb, line 2355
def self.create(arg)
  case arg
  when IPv4
    return arg
  when Regex
    if (0..255) === (a = $1.to_i) &&
       (0..255) === (b = $2.to_i) &&
       (0..255) === (c = $3.to_i) &&
       (0..255) === (d = $4.to_i)
      return self.new([a, b, c, d].pack("CCCC"))
    else
      raise ArgumentError.new("IPv4 address with invalid value: " + arg)
    end
  else
    raise ArgumentError.new("cannot interpret as IPv4 address: #{arg.inspect}")
  end
end

Public Instance Methods

to_name() click to toggle source

Turns this IPv4 address into a Resolv::DNS::Name.

# File lib/resolv.rb, line 2402
def to_name
  return DNS::Name.create(
    '%d.%d.%d.%d.in-addr.arpa.' % @address.unpack('CCCC').reverse)
end