@deftypefun {void} {gnutls_transport_set_ptr} (gnutls_session_t @var{session}, gnutls_transport_ptr_t @var{ptr})
@var{session}: is a @code{gnutls_session_t}  type.

@var{ptr}: is the value.

Used to set the first argument of the transport function (for push
and pull callbacks). In berkeley style sockets this function will set the
connection descriptor.
@end deftypefun