@deftypefun {int} {gnutls_session_set_premaster} (gnutls_session_t @var{session}, unsigned int @var{entity}, gnutls_protocol_t @var{version}, gnutls_kx_algorithm_t @var{kx}, gnutls_cipher_algorithm_t @var{cipher}, gnutls_mac_algorithm_t @var{mac}, gnutls_compression_method_t @var{comp}, const gnutls_datum_t * @var{master}, const gnutls_datum_t * @var{session_id})
@var{session}: is a @code{gnutls_session_t}  type.

@var{entity}: GNUTLS_SERVER or GNUTLS_CLIENT

@var{version}: the TLS protocol version

@var{kx}: the key exchange method

@var{cipher}: the cipher

@var{mac}: the MAC algorithm

@var{comp}: the compression method (ignored)

@var{master}: the master key to use

@var{session_id}: the session identifier

This function sets the premaster secret in a session. This is
a function intended for exceptional uses. Do not use this
function unless you are implementing a legacy protocol.
Use @code{gnutls_session_set_data()}  instead.

@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS}  (0) is returned, otherwise
an error code is returned.
@end deftypefun