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DTLS_get_data_mtu(3)                OpenSSL               DTLS_get_data_mtu(3)



NAME
       DTLS_get_data_mtu - Get maximum data payload size

LIBRARY
       libcrypto, -lcrypto

SYNOPSIS
        #include <openssl/ssl.h>

        size_t DTLS_get_data_mtu(const SSL *ssl);

DESCRIPTION
       This function obtains the maximum data payload size for the established
       DTLS connection ssl, based on the DTLS record MTU and the overhead of
       the DTLS record header, encryption and authentication currently in use.

RETURN VALUES
       Returns the maximum data payload size on success, or 0 on failure.

HISTORY
       This function was added in OpenSSL 1.1.1

COPYRIGHT
       Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.

       Licensed under the OpenSSL license (the "License").  You may not use
       this file except in compliance with the License.  You can obtain a copy
       in the file LICENSE in the source distribution or at
       <https://www.openssl.org/source/license.html>.



1.1.1                             2018-09-17              DTLS_get_data_mtu(3)