1 // +build go1.6, !go1.8 2 3 /* 4 * 5 * Copyright 2017 gRPC authors. 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 * 19 */ 20 21 package dns 22 23 import ( 24 "net" 25 26 "golang.org/x/net/context" 27 ) 28 29 var ( 30 lookupHost = func(ctx context.Context, host string) ([]string, error) { return net.LookupHost(host) } 31 lookupSRV = func(ctx context.Context, service, proto, name string) (string, []*net.SRV, error) { 32 return net.LookupSRV(service, proto, name) 33 } 34 lookupTXT = func(ctx context.Context, name string) ([]string, error) { return net.LookupTXT(name) } 35 ) 36
