=pod

=head1 NAME

SSL_group_to_name - get name of group

=head1 SYNOPSIS

 #include <openssl/ssl.h>

 const char *SSL_group_to_name(const SSL *ssl, int id);

=head1 DESCRIPTION

SSL_group_to_name() is used to retrieve the TLS group name
associated with a given TLS group ID, as registered via built-in
or external providers and as returned by a call to SSL_get1_groups()
or SSL_get_shared_group().

=head1 RETURN VALUES

If non-NULL, SSL_group_to_name() returns the TLS group name
corresponding to the given I<id> as a NULL-terminated string.
If SSL_group_to_name() returns NULL, an error occurred; possibly no
corresponding tlsname was registered during provider initialisation.

Note that the return value is valid only during the lifetime of the
SSL object I<ssl>.

=head1 SEE ALSO

L<ssl(7)>

=head1 COPYRIGHT

Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (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>.

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