resolver

Documentation

Index

• Variables
• func LookupIP(ctx context.Context, host string) ([]net.IP, error)
• func LookupIPWithResolver(ctx context.Context, host string, r Resolver) ([]net.IP, error)
• func LookupIPv4(ctx context.Context, host string) ([]net.IP, error)
• func LookupIPv6(ctx context.Context, host string) ([]net.IP, error)
• func ResolveIP(host string) (net.IP, error)
• func ResolveIPv4(host string) (net.IP, error)
• func ResolveIPv6(host string) (net.IP, error)
• type Resolver

Variables

var (
	// DefaultResolver aim to resolve ip
	DefaultResolver Resolver

	// DefaultHosts aim to resolve hosts
	DefaultHosts = trie.New()

	// DefaultDNSTimeout defined the default dns request timeout
	DefaultDNSTimeout = time.Second * 5
)

var (
	ErrIPNotFound = errors.New("couldn't find ip")
	ErrIPVersion  = errors.New("ip version error")
)

Functions

func LookupIP

func LookupIP(ctx context.Context, host string) ([]net.IP, error)

LookupIP ResolveIP with a host, return ip

func LookupIPWithResolver

func LookupIPWithResolver(ctx context.Context, host string, r Resolver) ([]net.IP, error)

LookupIPWithResolver same as ResolveIP, but with a resolver

func LookupIPv4

func LookupIPv4(ctx context.Context, host string) ([]net.IP, error)

LookupIPv4 with a host, return ipv4 list

func LookupIPv6

func LookupIPv6(ctx context.Context, host string) ([]net.IP, error)

LookupIPv6 with a host, return ipv6 list

func ResolveIP

func ResolveIP(host string) (net.IP, error)

ResolveIP with a host, return ip

func ResolveIPv4

func ResolveIPv4(host string) (net.IP, error)

ResolveIPv4 with a host, return ipv4

func ResolveIPv6

func ResolveIPv6(host string) (net.IP, error)

ResolveIPv6 with a host, return ipv6

Types

type Resolver

type Resolver interface {
	LookupIP(ctx context.Context, host string) ([]net.IP, error)
	LookupIPv4(ctx context.Context, host string) ([]net.IP, error)
	LookupIPv6(ctx context.Context, host string) ([]net.IP, error)
	ResolveIP(host string) (ip net.IP, err error)
	ResolveIPv4(host string) (ip net.IP, err error)
	ResolveIPv6(host string) (ip net.IP, err error)
	ExchangeContext(ctx context.Context, m *dns.Msg) (msg *dns.Msg, err error)
}