chipmunk/vendor/google.golang.org/grpc/credentials/credentials_util_go17.go

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2017-01-24 18:27:39 -08:00
// +build go1.7
/*
*
* Copyright 2016, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
package credentials
import (
"crypto/tls"
)
// cloneTLSConfig returns a shallow clone of the exported
// fields of cfg, ignoring the unexported sync.Once, which
// contains a mutex and must not be copied.
//
// If cfg is nil, a new zero tls.Config is returned.
//
// TODO replace this function with official clone function.
func cloneTLSConfig(cfg *tls.Config) *tls.Config {
if cfg == nil {
return &tls.Config{}
}
return &tls.Config{
Rand: cfg.Rand,
Time: cfg.Time,
Certificates: cfg.Certificates,
NameToCertificate: cfg.NameToCertificate,
GetCertificate: cfg.GetCertificate,
RootCAs: cfg.RootCAs,
NextProtos: cfg.NextProtos,
ServerName: cfg.ServerName,
ClientAuth: cfg.ClientAuth,
ClientCAs: cfg.ClientCAs,
InsecureSkipVerify: cfg.InsecureSkipVerify,
CipherSuites: cfg.CipherSuites,
PreferServerCipherSuites: cfg.PreferServerCipherSuites,
SessionTicketsDisabled: cfg.SessionTicketsDisabled,
SessionTicketKey: cfg.SessionTicketKey,
ClientSessionCache: cfg.ClientSessionCache,
MinVersion: cfg.MinVersion,
MaxVersion: cfg.MaxVersion,
CurvePreferences: cfg.CurvePreferences,
DynamicRecordSizingDisabled: cfg.DynamicRecordSizingDisabled,
Renegotiation: cfg.Renegotiation,
}
}