Class: Bitcoin::Message::NetworkAddr

Inherits:
Object
  • Object
show all
Defined in:
lib/bitcoin/message/network_addr.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ NetworkAddr

Returns a new instance of NetworkAddr.



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# File 'lib/bitcoin/message/network_addr.rb', line 19

def initialize
  @time = Time.now.to_i
  @services = Bitcoin::Message::SERVICE_FLAGS[:network]
end

Instance Attribute Details

#ip ⇒ Object

Returns the value of attribute ip.



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# File 'lib/bitcoin/message/network_addr.rb', line 15

def ip
  @ip
end

#port ⇒ Object

Returns the value of attribute port.



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# File 'lib/bitcoin/message/network_addr.rb', line 17

def port
  @port
end

#services ⇒ Object

The services the node advertised in its version message.



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# File 'lib/bitcoin/message/network_addr.rb', line 13

def services
  @services
end

#time ⇒ Object

unix time. Nodes advertising their own IP address set this to the current time. Nodes advertising IP addresses they’ve connected to set this to the last time they connected to that node. Other nodes just relaying the IP address should not change the time. Nodes can use the time field to avoid relaying old addr messages.



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# File 'lib/bitcoin/message/network_addr.rb', line 10

def time
  @time
end

Class Method Details

.parse_from_payload(payload) ⇒ Object 



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# File 'lib/bitcoin/message/network_addr.rb', line 24

def self.parse_from_payload(payload)
  buf = payload.is_a?(String) ? StringIO.new(payload) : payload
  addr = new
  addr.time = buf.read(4).unpack('V').first
  addr.services = buf.read(8).unpack('Q').first
  ip = IPAddr::new_ntoh(buf.read(16))
  addr.ip = ip.ipv4_mapped? ? ip.native : ip.to_s
  addr.port = buf.read(2).unpack('n').first
  addr
end

Instance Method Details

#to_payload ⇒ Object 



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# File 'lib/bitcoin/message/network_addr.rb', line 35

def to_payload
  ip_addr = IPAddr.new (ip)
  ip_addr = ip_addr.ipv4_mapped if ip_addr.ipv4?
  [time, services].pack('VQ') << ip_addr.hton << [port].pack('n')
end