// Copyright 2013 The Gorilla WebSocket Authors. All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

// +build !go1.8

package websocket

import "crypto/tls"

// cloneTLSConfig clones all public fields except the fields

// SessionTicketsDisabled and SessionTicketKey. This avoids copying the

// sync.Mutex in the sync.Once and makes it safe to call cloneTLSConfig on a

// config in active use.

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,

		ClientSessionCache:       cfg.ClientSessionCache,

		MinVersion:               cfg.MinVersion,

		MaxVersion:               cfg.MaxVersion,

		CurvePreferences:         cfg.CurvePreferences,

	}

}