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1 | // +build go1.7 |
2 | // +build !go1.8 | |
3 | ||
4 | /* | |
5 | * | |
6 | * Copyright 2016 gRPC authors. | |
7 | * | |
8 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
9 | * you may not use this file except in compliance with the License. | |
10 | * You may obtain a copy of the License at | |
11 | * | |
12 | * http://www.apache.org/licenses/LICENSE-2.0 | |
13 | * | |
14 | * Unless required by applicable law or agreed to in writing, software | |
15 | * distributed under the License is distributed on an "AS IS" BASIS, | |
16 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
17 | * See the License for the specific language governing permissions and | |
18 | * limitations under the License. | |
19 | * | |
20 | */ | |
21 | ||
22 | package credentials | |
23 | ||
24 | import ( | |
25 | "crypto/tls" | |
26 | ) | |
27 | ||
28 | // cloneTLSConfig returns a shallow clone of the exported | |
29 | // fields of cfg, ignoring the unexported sync.Once, which | |
30 | // contains a mutex and must not be copied. | |
31 | // | |
32 | // If cfg is nil, a new zero tls.Config is returned. | |
33 | func cloneTLSConfig(cfg *tls.Config) *tls.Config { | |
34 | if cfg == nil { | |
35 | return &tls.Config{} | |
36 | } | |
37 | return &tls.Config{ | |
38 | Rand: cfg.Rand, | |
39 | Time: cfg.Time, | |
40 | Certificates: cfg.Certificates, | |
41 | NameToCertificate: cfg.NameToCertificate, | |
42 | GetCertificate: cfg.GetCertificate, | |
43 | RootCAs: cfg.RootCAs, | |
44 | NextProtos: cfg.NextProtos, | |
45 | ServerName: cfg.ServerName, | |
46 | ClientAuth: cfg.ClientAuth, | |
47 | ClientCAs: cfg.ClientCAs, | |
48 | InsecureSkipVerify: cfg.InsecureSkipVerify, | |
49 | CipherSuites: cfg.CipherSuites, | |
50 | PreferServerCipherSuites: cfg.PreferServerCipherSuites, | |
51 | SessionTicketsDisabled: cfg.SessionTicketsDisabled, | |
52 | SessionTicketKey: cfg.SessionTicketKey, | |
53 | ClientSessionCache: cfg.ClientSessionCache, | |
54 | MinVersion: cfg.MinVersion, | |
55 | MaxVersion: cfg.MaxVersion, | |
56 | CurvePreferences: cfg.CurvePreferences, | |
57 | DynamicRecordSizingDisabled: cfg.DynamicRecordSizingDisabled, | |
58 | Renegotiation: cfg.Renegotiation, | |
59 | } | |
60 | } |