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