dns

type A struct {
	A   [4]byte // Fixed-size array to avoid net.IP allocations
	Hdr RR_Header
}

type AAAA struct {
	Hdr  RR_Header
	AAAA net.IP
}

type CNAME struct {
	Hdr   RR_Header
	CNAME string
}

type Class uint16

type Error struct {
	// contains filtered or unexported fields
}

type Header struct {
	ID uint16
	// Flags is an arbitrary 16bit represents QR, Opcode, AA, TC, RD, RA, Z and RCODE.
	//
	//   0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F
	// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
	// |QR|   Opcode  |AA|TC|RD|RA|   Z    |   RCODE   |
	// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
	Bits uint16
	// Qdcount specifies the number of entries in the question section
	// Ancount specifies the number of resource records in the answer section
	// Nscount specifies the number of name server resource records in the authority records section
	// Arcount specifies the number of resource records in the additional records section
	Qdcount, Ancount, Nscount, Arcount uint16
}

type MX struct {
	Hdr        RR_Header
	Preference uint16
	MX         string
}

type NS struct {
	Hdr RR_Header
	NS  string
}

type Name struct {
	Data   [255]byte
	Length uint8
}

type OPT struct {
	// Name     string
	// Type     Type
	// MaxSize  uint16
	// TTL      uint32
	// RDLength uint16
	Options []Option
	Hdr     RR_Header
}

type Opcode byte

type Option struct {
	Data   []byte
	Code   OptionCode
	Length uint16
}

type OptionCode uint16

type PTR struct {
	Hdr RR_Header
	Ptr string
}

type Question struct {
	// Name refers to the raw query name to be resolved in the query.
	//
	// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
	// |                                               |
	// /                     QNAME                     /
	// /                                               /
	// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
	Name []byte

	// Type specifies the type of the query to perform.
	//
	// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
	// |                     QTYPE                     |
	// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
	Type Type

	// Class specifies the class of the query to perform.
	//
	// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
	// |                     QCLASS                    |
	// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
	Class Class
}

type RFC3597 struct {
	Hdr   RR_Header
	Rdata string `dns:"hex"`
}

type RR interface {
	Header() *RR_Header

	String() string
	// contains filtered or unexported methods
}

type RR_Header struct {
	Name     string `dns:"cdomain-name"`
	Rrtype   Type
	Class    Class
	Ttl      uint32
	Rdlength uint16 // Length of data after header.
}

type Rcode uint16

type Request struct {
	OPT      OPT
	Raw      []byte
	Domain   []byte
	Question Question
	Header   Header
}

type Response struct {
	Answer []RR
	Ns     []RR
	Extra  []RR
	// Question holds the question section of the response message.
	Question Question
	// Header is the wire format for the DNS packet header.
	Header Header
}

type SOA struct {
	Hdr     RR_Header
	Ns      string // Primary name server
	Mbox    string // Responsible mailbox
	Serial  uint32 // Serial number
	Refresh uint32 // Refresh interval
	Retry   uint32 // Retry interval
	Expire  uint32 // Expire limit
	Minttl  uint32 // Minimum TTL
}

type SRV struct {
	Hdr      RR_Header
	Priority uint16 // Priority
	Weight   uint16 // Weight
	Port     uint16 // Port
	Target   string // Target domain name
}

type TXT struct {
	Hdr RR_Header
	TXT []string
}

type Type uint16