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.IX Title "SSL_get0_group_name 3"
.TH SSL_get0_group_name 3 2025-07-01 3.5.1 OpenSSL
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.SH NAME
SSL_get0_group_name \- get name of the group that was used for the key
agreement of the current TLS session establishment
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/ssl.h>
\&
\& const char *SSL_get0_group_name(SSL *s);
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
\&\fBSSL_get0_group_name()\fR returns the name of the group that was used for
the key agreement of the current TLS session establishment.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
If non\-NULL, \fBSSL_get0_group_name()\fR returns the name of the group that was used for
the key agreement of the current TLS session establishment.
If \fBSSL_get0_group_name()\fR returns NULL, an error occurred; possibly no TLS session
has been established. See also \fBSSL_get_negotiated_group\fR\|(3).
.PP
Note that the return value is valid only during the lifetime of the
SSL object \fIssl\fR.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBssl\fR\|(7),
\&\fBSSL_get_negotiated_group\fR\|(3)
.SH HISTORY
.IX Header "HISTORY"
This function was added in OpenSSL 3.2.
.SH COPYRIGHT
.IX Header "COPYRIGHT"
Copyright 2023\-2025 The OpenSSL Project Authors. All Rights Reserved.
.PP
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
<https://www.openssl.org/source/license.html>.