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38 lines
1018 B
Go
38 lines
1018 B
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package net
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import "net"
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// IsIPv6 returns if netIP is IPv6.
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func IsIPv6(netIP net.IP) bool {
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return netIP != nil && netIP.To4() == nil
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}
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// IsIPv6String returns if ip is IPv6.
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func IsIPv6String(ip string) bool {
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netIP := net.ParseIP(ip)
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return IsIPv6(netIP)
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}
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// IsIPv6CIDRString returns if cidr is IPv6.
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// This assumes cidr is a valid CIDR.
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func IsIPv6CIDRString(cidr string) bool {
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ip, _, _ := net.ParseCIDR(cidr)
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return IsIPv6(ip)
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}
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