resolver

Documentation

Index

• Variables
• type Item
  • func (item Item) Expired() bool
• type Resolver
  • func NewResolver(nameservers ...string) *Resolver
  • func (r *Resolver) Lookup(host string, nameservers ...string) ([]string, string, error)

Variables

var (
	DefaultNameServers               = []string{"8.8.8.8:53", "1.1.1.1:53"}
	DefaultExpiration  time.Duration = time.Minute * 10
	ResolverTimeout    time.Duration = time.Second * 7
)

var (
	ErrAnswerEmpty = errors.New("answer is empty")
	ErrIpEmpty     = errors.New("ip is empty")
)

Types

type Item

type Item struct {
	Nameserver string
	Object     []string
	Expiration int64
}

func (Item) Expired

func (item Item) Expired() bool

Returns true if the item has expired.

type Resolver

type Resolver struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

func NewResolver

func NewResolver(nameservers ...string) *Resolver

func (*Resolver) Lookup

func (r *Resolver) Lookup(host string, nameservers ...string) ([]string, string, error)