exdns

Documentation

Overview

Package exdns contains helpers to work with dns.Msg

Index

• func AsServerAddress(server string) (string, error)
• func Decanonize(qName string) string
• func ForEachAnswer[T dns.RR](msg *dns.Msg, fn func(v T))
• func GetFirstAnswer[T dns.RR](msg *dns.Msg) T
• func HasAnswerType(msg *dns.Msg, qType uint16) bool
• func HasNsType(msg *dns.Msg, qType uint16) bool
• func TrimQ(s []dns.Question, cond func(q dns.Question) bool) []dns.Question
• func TrimRR(s []dns.RR, cond func(rr dns.RR) bool) []dns.RR

Functions

func AsServerAddress

func AsServerAddress(server string) (string, error)

AsServerAddress validates and optionally appends :53 port if it wasn't specified already

func Decanonize

func Decanonize(qName string) string

Decanonize removes the trailing . if present, unless it's the root dot

func ForEachAnswer

func ForEachAnswer[T dns.RR](msg *dns.Msg, fn func(v T))

ForEachAnswer calls a function for each answer of the specified type.

func GetFirstAnswer

func GetFirstAnswer[T dns.RR](msg *dns.Msg) T

GetFirstAnswer returns the first answer for a specified type

func HasAnswerType

func HasAnswerType(msg *dns.Msg, qType uint16) bool

HasAnswerType checks if a dns.Msg contains answers of the specified type.

func HasNsType

func HasNsType(msg *dns.Msg, qType uint16) bool

HasNsType checks if a dns.Msg contains Ns entries of the specified type

func TrimQ

func TrimQ(s []dns.Question, cond func(q dns.Question) bool) []dns.Question

TrimQ removes entries matching the condition from a dns.Question slice

func TrimRR

func TrimRR(s []dns.RR, cond func(rr dns.RR) bool) []dns.RR

TrimRR removes entries matching the condition from a dns.RR slice