dnsutil

package
v0.0.0-...-c012b7a Latest Latest
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Published: Jul 2, 2021 License: Apache-2.0 Imports: 2 Imported by: 0

Documentation

Overview

Package dnsutil copied from coredns project https://github.com/coredns/coredns/blob/master/plugin/pkg/dnsutil/reverse.go

Index

Constants

View Source
const (
	// IP4arpa is the reverse tree suffix for v4 IP addresses.
	IP4arpa = ".in-addr.arpa."
	// IP6arpa is the reverse tree suffix for v6 IP addresses.
	IP6arpa = ".ip6.arpa."
)

Variables

This section is empty.

Functions

func ExtractAddressFromReverse

func ExtractAddressFromReverse(reverseName string) string

ExtractAddressFromReverse turns a standard PTR reverse record name into an IP address. This works for ipv4 or ipv6.

54.119.58.176.in-addr.arpa. becomes 176.58.119.54. If the conversion fails the empty string is returned.

func IsReverse

func IsReverse(name string) int

IsReverse returns 0 is name is not in a reverse zone. Anything > 0 indicates name is in a reverse zone. The returned integer will be 1 for in-addr.arpa. (IPv4) and 2 for ip6.arpa. (IPv6).

Types

This section is empty.

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