gnutls_alpn_get_selected_protocol - API function
int gnutls_alpn_get_selected_protocol(gnutls_session_t session, gnutls_datum_t * protocol);
This function allows you to get the negotiated protocol name. The returned protocol should be treated as opaque, constant value and only valid during the session life.
The selected protocol is the first supported by the list sent by the client.
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative error code is returned.
Report bugs to <email@example.com>.
Home page: https://www.gnutls.org
Copyright © 2001-2023 Free Software Foundation, Inc., and
Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved.
The full documentation for gnutls is maintained as a Texinfo manual. If the /usr/share/doc/gnutls/ directory does not contain the HTML form visit