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    /* $OpenBSD: d1_meth.c,v 1.15 2017/10/12 15:52:50 jsing Exp $ */  | 
    
    
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    /*  | 
    
    
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     * DTLS implementation written by Nagendra Modadugu  | 
    
    
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     * (nagendra@cs.stanford.edu) for the OpenSSL project 2005.  | 
    
    
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     */  | 
    
    
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    /* ====================================================================  | 
    
    
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     * Copyright (c) 1999-2005 The OpenSSL Project.  All rights reserved.  | 
    
    
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     *  | 
    
    
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     * Redistribution and use in source and binary forms, with or without  | 
    
    
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     * modification, are permitted provided that the following conditions  | 
    
    
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     * are met:  | 
    
    
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     *  | 
    
    
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     * 1. Redistributions of source code must retain the above copyright  | 
    
    
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     *    notice, this list of conditions and the following disclaimer.  | 
    
    
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     *  | 
    
    
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     * 2. Redistributions in binary form must reproduce the above copyright  | 
    
    
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     *    notice, this list of conditions and the following disclaimer in  | 
    
    
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     *    the documentation and/or other materials provided with the  | 
    
    
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     *    distribution.  | 
    
    
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     *  | 
    
    
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     * 3. All advertising materials mentioning features or use of this  | 
    
    
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     *    software must display the following acknowledgment:  | 
    
    
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     *    "This product includes software developed by the OpenSSL Project  | 
    
    
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     *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"  | 
    
    
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     *  | 
    
    
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     * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to  | 
    
    
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     *    endorse or promote products derived from this software without  | 
    
    
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     *    prior written permission. For written permission, please contact  | 
    
    
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     *    openssl-core@OpenSSL.org.  | 
    
    
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     *  | 
    
    
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     * 5. Products derived from this software may not be called "OpenSSL"  | 
    
    
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     *    nor may "OpenSSL" appear in their names without prior written  | 
    
    
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     *    permission of the OpenSSL Project.  | 
    
    
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     *  | 
    
    
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     * 6. Redistributions of any form whatsoever must retain the following  | 
    
    
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     *    acknowledgment:  | 
    
    
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     *    "This product includes software developed by the OpenSSL Project  | 
    
    
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     *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"  | 
    
    
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     *  | 
    
    
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     * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY  | 
    
    
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     * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE  | 
    
    
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     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR  | 
    
    
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     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR  | 
    
    
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     * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,  | 
    
    
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     * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT  | 
    
    
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     * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  | 
    
    
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     * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)  | 
    
    
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     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,  | 
    
    
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     * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)  | 
    
    
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     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED  | 
    
    
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     * OF THE POSSIBILITY OF SUCH DAMAGE.  | 
    
    
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     * ====================================================================  | 
    
    
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     *  | 
    
    
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     * This product includes cryptographic software written by Eric Young  | 
    
    
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     * (eay@cryptsoft.com).  This product includes software written by Tim  | 
    
    
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     * Hudson (tjh@cryptsoft.com).  | 
    
    
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     *  | 
    
    
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     */  | 
    
    
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    #include <stdio.h>  | 
    
    
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    #include <openssl/objects.h>  | 
    
    
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    #include "ssl_locl.h"  | 
    
    
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    static const SSL_METHOD *dtls1_get_method(int ver);  | 
    
    
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    static const SSL_METHOD_INTERNAL DTLSv1_method_internal_data = { | 
    
    
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    	.version = DTLS1_VERSION,  | 
    
    
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    	.min_version = DTLS1_VERSION,  | 
    
    
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    	.max_version = DTLS1_VERSION,  | 
    
    
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    	.ssl_new = dtls1_new,  | 
    
    
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    	.ssl_clear = dtls1_clear,  | 
    
    
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    	.ssl_free = dtls1_free,  | 
    
    
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    	.ssl_accept = ssl3_accept,  | 
    
    
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    	.ssl_connect = ssl3_connect,  | 
    
    
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    	.ssl_read = ssl3_read,  | 
    
    
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    	.ssl_peek = ssl3_peek,  | 
    
    
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    	.ssl_write = ssl3_write,  | 
    
    
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    	.ssl_shutdown = dtls1_shutdown,  | 
    
    
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    	.ssl_pending = ssl3_pending,  | 
    
    
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    	.get_ssl_method = dtls1_get_method,  | 
    
    
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    	.get_timeout = dtls1_default_timeout,  | 
    
    
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    	.ssl_version = ssl_undefined_void_function,  | 
    
    
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    	.ssl_renegotiate = ssl3_renegotiate,  | 
    
    
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    	.ssl_renegotiate_check = ssl3_renegotiate_check,  | 
    
    
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    	.ssl_get_message = dtls1_get_message,  | 
    
    
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    	.ssl_read_bytes = dtls1_read_bytes,  | 
    
    
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    	.ssl_write_bytes = dtls1_write_app_data_bytes,  | 
    
    
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    	.ssl3_enc = &DTLSv1_enc_data,  | 
    
    
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    };  | 
    
    
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    static const SSL_METHOD DTLSv1_method_data = { | 
    
    
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    	.ssl_dispatch_alert = dtls1_dispatch_alert,  | 
    
    
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    	.num_ciphers = ssl3_num_ciphers,  | 
    
    
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    	.get_cipher = dtls1_get_cipher,  | 
    
    
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    	.get_cipher_by_char = ssl3_get_cipher_by_char,  | 
    
    
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    	.put_cipher_by_char = ssl3_put_cipher_by_char,  | 
    
    
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    	.internal = &DTLSv1_method_internal_data,  | 
    
    
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    };  | 
    
    
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    const SSL_METHOD *  | 
    
    
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    DTLSv1_method(void)  | 
    
    
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    { | 
    
    
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    	return &DTLSv1_method_data;  | 
    
    
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    }  | 
    
    
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    static const SSL_METHOD *  | 
    
    
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    dtls1_get_method(int ver)  | 
    
    
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    { | 
    
    
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    	if (ver == DTLS1_VERSION)  | 
    
    
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    		return (DTLSv1_method());  | 
    
    
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    	return (NULL);  | 
    
    
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    }  |