netutil

Documentation

Overview

Package netutil implements some network utility functions.

Index

• Variables
• func FirstIP(cidr *net.IPNet) net.IP
• func GetOutBoundIP() (net.IP, error)
• func LastIP(cidr *net.IPNet) net.IP
• type IPv4Filter
  • func NewIPv4Filter() *IPv4Filter
  • func (f *IPv4Filter) Add(cidr *net.IPNet) error
  • func (f *IPv4Filter) Contains(ip net.IP) bool
  • func (f *IPv4Filter) Remove(cidr *net.IPNet) error

Variables

var ErrInvalidIPv4CIDR = errors.New("invalid IPv4 CIDR")

Functions

func FirstIP

func FirstIP(cidr *net.IPNet) net.IP

FirstIP returns the start IP of specified CIDR.

func GetOutBoundIP

func GetOutBoundIP() (net.IP, error)

GetOutBoundIP get preferred outbound ip of current process.

https://stackoverflow.com/a/37382208

func LastIP

func LastIP(cidr *net.IPNet) net.IP

LastIP returns the end IP of specified CIDR.

Types

type IPv4Filter

type IPv4Filter struct {
	// contains filtered or unexported fields
}

func NewIPv4Filter

func NewIPv4Filter() *IPv4Filter

func (*IPv4Filter) Add

func (f *IPv4Filter) Add(cidr *net.IPNet) error

func (*IPv4Filter) Contains

func (f *IPv4Filter) Contains(ip net.IP) bool

func (*IPv4Filter) Remove

func (f *IPv4Filter) Remove(cidr *net.IPNet) error