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class Resolv::MDNS

Parent:
Resolv::DNS

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:

  • RFC 6762

Constants

AddressV4

Default IPv4 mDNS address

AddressV6

Default IPv6 mDNS address

Addresses

Default mDNS addresses

Port

Default mDNS Port

Public Class Methods

new(config_info=nil) Show source
# File lib/resolv.rb, line 2641
def initialize(config_info=nil)
  if config_info then
    super({ nameserver_port: Addresses }.merge(config_info))
  else
    super(nameserver_port: Addresses)
  end
end

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

Public Instance Methods

each_address(name) Show source
# File lib/resolv.rb, line 2657
def each_address(name)
  name = Resolv::DNS::Name.create(name)

  return unless name[-1].to_s == 'local'

  super(name)
end

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

Ruby Core © 1993–2020 Yukihiro Matsumoto
Licensed under the Ruby License.
Ruby Standard Library © contributors
Licensed under their own licenses.