# File lib/resolv-replace.rb, line 25
25:   def bind(host, port)
26:     original_resolv_bind(IPSocket.getaddress(host), port)
27:   end

    # File lib/resolv-replace.rb, line 30
30:   def connect(host, port)
31:     original_resolv_connect(IPSocket.getaddress(host), port)
32:   end

/*
 * call-seq:
 *      udpsocket.recvfrom_nonblock(maxlen) => [mesg, sender_inet_addr]
 *      udpsocket.recvfrom_nonblock(maxlen, flags) => [mesg, sender_inet_addr]
 * 
 * Receives up to _maxlen_ bytes from +udpsocket+ using recvfrom(2) after
 * O_NONBLOCK is set for the underlying file descriptor.
 * _flags_ is zero or more of the +MSG_+ options.
 * The first element of the results, _mesg_, is the data received.
 * The second element, _sender_inet_addr_, is an array to represent the sender address.
 *
 * When recvfrom(2) returns 0,
 * Socket#recvfrom_nonblock returns an empty string as data.
 * It means an empty packet.
 * 
 * === Parameters
 * * +maxlen+ - the number of bytes to receive from the socket
 * * +flags+ - zero or more of the +MSG_+ options 
 * 
 * === Example
 *      require 'socket'
 *      s1 = UDPSocket.new
 *      s1.bind("127.0.0.1", 0)
 *      s2 = UDPSocket.new
 *      s2.bind("127.0.0.1", 0)
 *      s2.connect(*s1.addr.values_at(3,1))
 *      s1.connect(*s2.addr.values_at(3,1))
 *      s1.send "aaa", 0
 *      IO.select([s2])
 *      p s2.recvfrom_nonblock(10)  #=> ["aaa", ["AF_INET", 33302, "localhost.localdomain", "127.0.0.1"]]
 *
 * Refer to Socket#recvfrom for the exceptions that may be thrown if the call
 * to _recvfrom_nonblock_ fails. 
 *
 * UDPSocket#recvfrom_nonblock may raise any error corresponding to recvfrom(2) failure,
 * including Errno::EAGAIN.
 *
 * === See
 * * Socket#recvfrom
 */
static VALUE
udp_recvfrom_nonblock(int argc, VALUE *argv, VALUE sock)
{
    return s_recvfrom_nonblock(sock, argc, argv, RECV_IP);
}

    # File lib/resolv-replace.rb, line 35
35:   def send(mesg, flags, *rest)
36:     if rest.length == 2
37:       host, port = rest
38:       begin
39:         addrs = Resolv.getaddresses(host)
40:       rescue Resolv::ResolvError
41:         raise SocketError, "Hostname not known: #{host}"
42:       end
43:       err = nil
44:       addrs[0...-1].each {|addr|
45:         begin
46:           return original_resolv_send(mesg, flags, addr, port)
47:         rescue SystemCallError
48:         end
49:       }
50:       original_resolv_send(mesg, flags, addrs[-1], port)
51:     else
52:       original_resolv_send(mesg, flags, *rest)
53:     end
54:   end