Class: Net::DNS::RR::A

Inherits:
Net::DNS::RR show all
Defined in:
lib/net/dns/rr/a.rb

Overview

IPv4 Address Record (A)

Class for DNS IPv4 Address (A) resource records.

The resource data is an IPv4 (i.e. 32 bit long) address, hold in the instance variable address.

a = Net::DNS::RR::A.new("localhost.movie.edu. 360 IN A 127.0.0.1")

a = Net::DNS::RR::A.new(:name    => "localhost.movie.edu.",
                        :ttl     => 360,
                        :cls     => Net::DNS::IN,
                        :type    => Net::DNS::A,
                        :address => "127.0.0.1" )

When computing binary data to transmit the RR, the RDATA section is an Internet address expressed as four decimal numbers separated by dots without any embedded space (e.g. “10.2.0.52” or “192.0.5.6”).

Constant Summary

Constants inherited from Net::DNS::RR

RRFIXEDSZ, RR_REGEXP

Constants included from Names

Names::INT16SZ

Instance Method Summary collapse

Methods inherited from Net::DNS::RR

#cls, #comp_data, #data, #initialize, #inspect, #name, parse, parse_packet, #rdata, #to_a, #to_s, #ttl, #type

Methods included from Names

#dn_comp, #dn_expand, #names_array, #pack_name, #valid?

Constructor Details

This class inherits a constructor from Net::DNS::RR

Instance Method Details

#address ⇒ Object

Gets the current IPv4 address for this record.

Returns an instance of IPAddr.



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# File 'lib/net/dns/rr/a.rb', line 30

def address
  @address
end

#address=(string_or_ipaddr) ⇒ Object

Assigns a new IPv4 address to this record, which can be in the form of a String or an IPAddr object.

Examples

a.address = "192.168.0.1"
a.address = IPAddr.new("10.0.0.1")

Returns the new allocated instance of IPAddr.



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# File 'lib/net/dns/rr/a.rb', line 43

def address=(string_or_ipaddr)
  @address = check_address(string_or_ipaddr)
  build_pack
  @address
end

#value ⇒ Object

Gets the standardized value for this record, represented by the value of address.

Returns a String.



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# File 'lib/net/dns/rr/a.rb', line 53

def value
  address.to_s
end