1=pod 2 3=head1 NAME 4 5DTLS_get_data_mtu - Get maximum data payload size 6 7=head1 SYNOPSIS 8 9 #include <openssl/ssl.h> 10 11 size_t DTLS_get_data_mtu(const SSL *ssl); 12 13=head1 DESCRIPTION 14 15This function obtains the maximum data payload size for the established 16DTLS connection B<ssl>, based on the DTLS record MTU and the overhead 17of the DTLS record header, encryption and authentication currently in use. 18 19=head1 RETURN VALUES 20 21Returns the maximum data payload size on success, or 0 on failure. 22 23=head1 HISTORY 24 25The DTLS_get_data_mtu() function was added in OpenSSL 1.1.1. 26 27=head1 COPYRIGHT 28 29Copyright 2016 The OpenSSL Project Authors. All Rights Reserved. 30 31Licensed under the OpenSSL license (the "License"). You may not use 32this file except in compliance with the License. You can obtain a copy 33in the file LICENSE in the source distribution or at 34L<https://www.openssl.org/source/license.html>. 35 36=cut 37