/*
 * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GNUTLS.
 *
 * The GNUTLS library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
 * USA
 *
 */

typedef enum Optional
{ OPTIONAL_PACKET, MANDATORY_PACKET } Optional;

int MHD_gtls_send_handshake (MHD_gtls_session_t session, void *i_data,
                             uint32_t i_datasize,
                             MHD_gnutls_handshake_description_t type);
int MHD_gtls_recv_hello_request (MHD_gtls_session_t session, void *data,
                                 uint32_t data_size);
int MHD_gtls_send_hello (MHD_gtls_session_t session, int again);
int MHD_gtls_recv_hello (MHD_gtls_session_t session, opaque * data,
                         int datalen);
int MHD_gtls_recv_handshake (MHD_gtls_session_t session, uint8_t **, int *,
                             MHD_gnutls_handshake_description_t,
                             Optional optional);
void
MHD__gnutls_handshake_set_max_packet_length (MHD_gtls_session_t session, size_t max);

#define STATE session->internals.handshake_state
/* This returns true if we have got there
 * before (and not finished due to an interrupt).
 */
#define AGAIN(target) STATE==target?1:0