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etehtsea/pffff.rb Secret

Created August 24, 2016 14:02
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pffff.rb
» s = Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0).tap { |s| s.bind(Socket.sockaddr_in(0, "127.0.0.1")) }
=> #<Socket:0x4e7dc304>
» Socket.unpack_sockaddr_in(s.getsockname)
/127.0.0.1:0
0
=> [0, "127.0.0.1"]
» s.local_address
/127.0.0.1:64454
64454
=> #<Addrinfo: localhost:64454 TCP>
» Socket.unpack_sockaddr_in(s.getsockname)
localhost/127.0.0.1:64454
64454
=> [64454, "127.0.0.1"]
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