| /* |
| Copyright 2018 The Kubernetes Authors. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| package net |
| |
| import "net" |
| |
| // IsIPv6 returns if netIP is IPv6. |
| func IsIPv6(netIP net.IP) bool { |
| return netIP != nil && netIP.To4() == nil |
| } |
| |
| // IsIPv6String returns if ip is IPv6. |
| func IsIPv6String(ip string) bool { |
| netIP := net.ParseIP(ip) |
| return IsIPv6(netIP) |
| } |
| |
| // IsIPv6CIDRString returns if cidr is IPv6. |
| // This assumes cidr is a valid CIDR. |
| func IsIPv6CIDRString(cidr string) bool { |
| ip, _, _ := net.ParseCIDR(cidr) |
| return IsIPv6(ip) |
| } |