openssl/doc/man3/SSL_get_extms_support.pod

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=pod
=head1 NAME
SSL_get_extms_support - extended master secret support
=head1 SYNOPSIS
#include <openssl/ssl.h>
int SSL_get_extms_support(SSL *ssl);
=head1 DESCRIPTION
SSL_get_extms_support() indicates whether the current session used extended
master secret.
This function is implemented as a macro.
=head1 RETURN VALUES
SSL_get_extms_support() returns 1 if the current session used extended
master secret, 0 if it did not and -1 if a handshake is currently in
progress i.e. it is not possible to determine if extended master secret
was used.
=head1 SEE ALSO
L<ssl(7)>
=head1 COPYRIGHT
Copyright 2015-2016 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
L<https://www.openssl.org/source/license.html>.
=cut