utils

Documentation

Index

• func Capacity(a, b net.IP) *big.Int
• func CheckNotEmpty(name, input string) error
• func Cmp(a, b net.IP) int
• func DeepCopyStringSlice(in []string) []string
• func DeepEqualStringSlice(a []string, b []string) bool
• func LastIP(subnet *net.IPNet) net.IP
• func MinUint32(a, b uint32) uint32
• func Network(ipn *net.IPNet) *net.IPNet
• func NextIP(ip net.IP) net.IP
• func NormalizedIP(ip string) string
• func ParseBoolOrDefault(in string, defaultValue bool) bool
• func PickFirstNonEmptyString(ss ...string) string
• func PrevIP(ip net.IP) net.IP
• func StringSliceToMap(in []string) (out map[string]struct{})
• func StringToIPNet(in string) *net.IPNet
• func ToDNSFormat(ip net.IP) string
• func ValidateIP(ip string) error
• func ValidateIPv4(ip string) error
• func ValidateIPv6(ip string) error

Functions

func Capacity

func Capacity(a, b net.IP) *big.Int

Capacity returns the absolute number of IPs between a and b. 0 is returned if a and b are of different IP families, or any of those two IPs is invalid.

func CheckNotEmpty

func CheckNotEmpty(name, input string) error

func Cmp

func Cmp(a, b net.IP) int

Cmp compares two IPs, returning the usual ordering: a < b : -1 a == b : 0 a > b : 1 incomparable : -2

func DeepCopyStringSlice

func DeepCopyStringSlice(in []string) []string

func DeepEqualStringSlice

func DeepEqualStringSlice(a []string, b []string) bool

func LastIP

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

LastIP Determine the last IP of a subnet, excluding the broadcast if IPv4

func MinUint32

func MinUint32(a, b uint32) uint32

func Network

func Network(ipn *net.IPNet) *net.IPNet

Network masks off the host portion of the IP, if IPNet is invalid, return nil

func NextIP

func NextIP(ip net.IP) net.IP

NextIP returns IP incremented by 1, if IP is invalid, return nil

func NormalizedIP

func NormalizedIP(ip string) string

NormalizedIP If IP is valid, return itself otherwise empty string

func ParseBoolOrDefault

func ParseBoolOrDefault(in string, defaultValue bool) bool

func PickFirstNonEmptyString

func PickFirstNonEmptyString(ss ...string) string

func PrevIP

func PrevIP(ip net.IP) net.IP

PrevIP returns IP decremented by 1, if IP is invalid, return nil

func StringSliceToMap

func StringSliceToMap(in []string) (out map[string]struct{})

func StringToIPNet

func StringToIPNet(in string) *net.IPNet

func ToDNSFormat

func ToDNSFormat(ip net.IP) string

func ValidateIP

func ValidateIP(ip string) error

func ValidateIPv4

func ValidateIPv4(ip string) error

func ValidateIPv6

func ValidateIPv6(ip string) error