resolver

Documentation

Index

• Variables
• func FakeIPEnabled() bool
• func FindHostByIP(ip net.IP) (string, bool)
• func IsExistFakeIP(ip net.IP) bool
• func IsFakeIP(ip net.IP) bool
• 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 MappingEnabled() bool
• func ResolveIP(host string) (net.IP, error)
• func ResolveIPv4(host string) (net.IP, error)
• func ResolveIPv6(host string) (net.IP, error)
• type Enhancer
• type Resolver

Variables

var (
	// DefaultResolver aim to resolve ip
	DefaultResolver Resolver

	// DisableIPv6 means don't resolve ipv6 host
	// default value is true
	DisableIPv6 = true

	// 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")
	ErrIPv6Disabled = errors.New("ipv6 disabled")
)

Functions

func FakeIPEnabled

func FakeIPEnabled() bool

func FindHostByIP

func FindHostByIP(ip net.IP) (string, bool)

func IsExistFakeIP

func IsExistFakeIP(ip net.IP) bool

func IsFakeIP

func IsFakeIP(ip net.IP) bool

func LookupIP

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

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 MappingEnabled

func MappingEnabled() bool

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 Enhancer

type Enhancer interface {
	FakeIPEnabled() bool
	MappingEnabled() bool
	IsFakeIP(net.IP) bool
	IsExistFakeIP(net.IP) bool
	FindHostByIP(net.IP) (string, bool)
}

var DefaultHostMapper Enhancer

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)
}