class Resolv::DNS::MDNS

Resolv::MDNS is a one-shot Multicast DNS (mDNS) resolver. It blindly makes queries to the mDNS addresses without understanding anything about multicast ports.

Information taken form the following places:

Constants

AddressRegex

Address Regexp to use for matching IP addresses.

AddressV4

Default IPv4 mDNS address

AddressV6

Default IPv6 mDNS address

Addresses

Default mDNS addresses

DefaultResolver

Default resolver to use for Resolv class methods.

Port

Default mDNS Port

Public Class Methods

new(config_info=nil) click to toggle source

Creates a new one-shot Multicast DNS (mDNS) resolver.

config_info can be:

nil

Uses the default mDNS addresses

Hash

Must contain :nameserver or :nameserver_port like Resolv::DNS#initialize.

Calls superclass method Resolv::DNS.new
# File lib/resolv.rb, line 2624
def initialize(config_info=nil)
  if config_info then
    super({ nameserver_port: Addresses }.merge(config_info))
  else
    super(nameserver_port: Addresses)
  end
end

Public Instance Methods

each_address(name) click to toggle source

Iterates over all IP addresses for name retrieved from the mDNS resolver, provided name ends with “local”. If the name does not end in “local” no records will be returned.

name can be a Resolv::DNS::Name or a String. Retrieved addresses will be a Resolv::IPv4 or Resolv::IPv6

Calls superclass method Resolv::DNS#each_address
# File lib/resolv.rb, line 2640
  def each_address(name)
    name = Resolv::DNS::Name.create(name)

    return unless name.to_a.last == 'local'

    super(name)
  end

  def make_udp_requester # :nodoc:
    nameserver_port = @config.nameserver_port
    Requester::MDNSOneShot.new(*nameserver_port)
  end

end