1// +build go1.13 2 3/* 4 * 5 * Copyright 2019 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 21package dns 22 23import "net" 24 25func init() { 26 filterError = func(err error) error { 27 if dnsErr, ok := err.(*net.DNSError); ok && dnsErr.IsNotFound { 28 // The name does not exist; not an error. 29 return nil 30 } 31 return err 32 } 33} 34