dns

Documentation

Index

• Constants
• func AnySubdomainRegex() *regexp.Regexp
• func CopyString(src string) string
• func RemoveAsteriskLabel(s string) string
• func ReverseString(s string) string
• func SubdomainRegex(domain string) *regexp.Regexp

Constants

const SUBRE = "(([a-zA-Z0-9]{1}|[_a-zA-Z0-9]{1}[_a-zA-Z0-9-]{0,61}[a-zA-Z0-9]{1})[.]{1})+"

SUBRE is a regular expression that will match on all subdomains once the domain is appended.

Functions

func AnySubdomainRegex

func AnySubdomainRegex() *regexp.Regexp

AnySubdomainRegex returns a Regexp object initialized to match any DNS subdomain name.

func CopyString

func CopyString(src string) string

CopyString return a new string variable with the same value as the parameter.

func RemoveAsteriskLabel

func RemoveAsteriskLabel(s string) string

RemoveAsteriskLabel returns the provided DNS name with all asterisk labels removed.

func ReverseString

func ReverseString(s string) string

ReverseString returns the characters of the argument string in reverse order.

func SubdomainRegex

func SubdomainRegex(domain string) *regexp.Regexp

SubdomainRegex returns a Regexp object initialized to match subdomain names that end with the domain provided by the parameter.