DTLS_GET_DATA_MTU
Section: OpenSSL (3)
Updated: 2021-03-26
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NAME
DTLS_get_data_mtu - Get maximum data payload size
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
The
DTLS_get_data_mtu() 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>.