Update dependencies

pkg/net/ipnet.go

@@ -0,0 +1,53 @@
+/*
+Copyright 2017 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"
+	"strings"
+)
+
+// IPNet maps string to net.IPNet.
+type IPNet map[string]*net.IPNet
+
+// IP maps string to net.IP.
+type IP map[string]net.IP
+
+// ParseIPNets parses string slice to IPNet.
+func ParseIPNets(specs ...string) (IPNet, IP, error) {
+	ipnetset := make(IPNet)
+	ipset := make(IP)
+
+	for _, spec := range specs {
+		spec = strings.TrimSpace(spec)
+		_, ipnet, err := net.ParseCIDR(spec)
+		if err != nil {
+			ip := net.ParseIP(spec)
+			if ip == nil {
+				return nil, nil, err
+			}
+			i := ip.String()
+			ipset[i] = ip
+			continue
+		}
+
+		k := ipnet.String()
+		ipnetset[k] = ipnet
+	}
+
+	return ipnetset, ipset, nil
+}