util

Documentation

Index

• Constants
• Variables
• func ClearDirectory(inputdir string)
• func DomainList(domain string) []string
• func GetAnswerValues(response *dns.Msg) []string
• func GetFileAsArray(inputfile string) ([]string, error)
• func GetFirstIPResponse(response *dns.Msg) string
• func GetRecordValue(record interface{}) string
• func IsEmptyResponse(response *dns.Msg) bool
• func LineCount(inputfile string) (uint, error)
• func LookupNetBIOSName(address string) (string, error)
• func ParseDuration(input string) (time.Duration, error)
• func ReverseDomainTree(domain string) string
• func ReverseLookupDomain(ip *net.IP) string
• func ReverseLookupDomainString(ipString string) string
• func ReverseString(input string) string
• func RootDomain(domain string) string
• func StartsWithAny(value string, any []string) bool
• func StringIn(value string, in []string) bool
• func SubDomain(domain string) string
• func TrimComments(line string, commentPrefixes ...string) string

Constants

const (
	Hours = 1
	Day   = 24
	Week  = 24 * 7
)

Variables

var DefaultCommentPrefixes = []string{
	"#",
	"//",
}

takes a line and removes commented section

Functions

func ClearDirectory

func ClearDirectory(inputdir string)

clears the contents of a directory but leaves it

func DomainList

func DomainList(domain string) []string

based on a domain name ("sub.google.com") returns a slice of domains that should be matched EXACTLY against ["sub.google.com", "google.com", "com"]

func GetAnswerValues

func GetAnswerValues(response *dns.Msg) []string

func GetFileAsArray

func GetFileAsArray(inputfile string) ([]string, error)

func GetFirstIPResponse

func GetFirstIPResponse(response *dns.Msg) string

get the first A record response value

func GetRecordValue

func GetRecordValue(record interface{}) string

based on the string value for a RR

func IsEmptyResponse

func IsEmptyResponse(response *dns.Msg) bool

returns true if the response is "empty" nil response empty response (no answers or other sections) answers with no content

func LineCount

func LineCount(inputfile string) (uint, error)

count file lines from: https://stackoverflow.com/a/24563853

func LookupNetBIOSName

func LookupNetBIOSName(address string) (string, error)

this is an experimental feature pulled from: https://github.com/jpillora/icmpscan i made some changes to make it a litte more readable and, more importantly, to set the outbound dns flags to 0 so this would work

func ParseDuration

func ParseDuration(input string) (time.Duration, error)

func ReverseDomainTree

func ReverseDomainTree(domain string) string

take a domain like "sub.main.top.tld" and transform to "tld.top.main.sub"

func ReverseLookupDomain

func ReverseLookupDomain(ip *net.IP) string

returns the reverse lookup arpa domain for the given IP

func ReverseLookupDomainString

func ReverseLookupDomainString(ipString string) string

func ReverseString

func ReverseString(input string) string

adapted from https://groups.google.com/d/msg/golang-nuts/oPuBaYJ17t4/PCmhdAyrNVkJ

func RootDomain

func RootDomain(domain string) string

finds the "root" domain, that is a the domain with just the name and the TLD

func StartsWithAny

func StartsWithAny(value string, any []string) bool

func StringIn

func StringIn(value string, in []string) bool

determines if the given string is in the array of strings

func SubDomain

func SubDomain(domain string) string

finds the subdomain of a requested domain, so "www.google.com" returns "google.com" and "google.com" returns "google.com"

func TrimComments

func TrimComments(line string, commentPrefixes ...string) string