Software Development with Go: Cloud-Native Programming using Golang with Linux and Docker by Nanik Tolaram

Author:Nanik Tolaram
Language: eng
Format: epub
ISBN: 9781484287316
Publisher: Apress

func (s *Server) readRequest() (dnsmessage.Message, *net.UDPAddr, error) {

buf := make([]byte, 1024)

_, addr, err := s.conn.ReadFromUDP(buf)

...

}

The readRequest() function, on receiving the incoming request, proceeds to unpack the data using the built-in golang.org/x/n/dns package, as shown here:func (s *Server) readRequest() (dnsmessage.Message, *net.UDPAddr, error) {

...

var msg dnsmessage.Message

err = msg.Unpack(buf)

...

}

The unpacked data is now stored in a dnsmessage.Message struct that has the following declaration:type Message struct {

Header

Questions []Question

Answers []Resource

Authorities []Resource

Additionals []Resource

}

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