1=pod 2 3=head1 NAME 4 5SSL_get0_group_name - get name of the group that was used for the key 6agreement of the current TLS session establishment 7 8=head1 SYNOPSIS 9 10 #include <openssl/ssl.h> 11 12 const char *SSL_get0_group_name(SSL *s); 13 14=head1 DESCRIPTION 15 16SSL_get0_group_name() returns the name of the group that was used for 17the key agreement of the current TLS session establishment. 18 19=head1 RETURN VALUES 20 21If non-NULL, SSL_get0_group_name() returns the name of the group that was used for 22the key agreement of the current TLS session establishment. 23If SSL_get0_group_name() returns NULL, an error occurred; possibly no TLS session 24has been established. See also L<SSL_get_negotiated_group(3)>. 25 26Note that the return value is valid only during the lifetime of the 27SSL object I<ssl>. 28 29=head1 SEE ALSO 30 31L<ssl(7)>, 32L<SSL_get_negotiated_group(3)> 33 34=head1 HISTORY 35 36This function was added in OpenSSL 3.2. 37 38=head1 COPYRIGHT 39 40Copyright 2023-2025 The OpenSSL Project Authors. All Rights Reserved. 41 42Licensed under the Apache License 2.0 (the "License"). You may not use 43this file except in compliance with the License. You can obtain a copy 44in the file LICENSE in the source distribution or at 45L<https://www.openssl.org/source/license.html>. 46 47=cut 48