/*
 * Copyright (C) 2001-2003 FhG Fokus
 *
 * This file is part of Kamailio, a free SIP server.
 *
 * Kamailio is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version
 *
 * For a license to use the Kamailio software under conditions
 * other than those described here, or to purchase support for this
 * software, please contact iptel.org by e-mail at the following addresses:
 *    info@iptel.org
 *
 * Kamailio 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License 
 * along with this program; if not, write to the Free Software 
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

/*! \file
 * \brief Parser :: SIP first line parsing automaton
 *
 * \ingroup parser
 */

#ifndef PARSE_FLINE_H
#define PARSE_FLINE_H

#include "../str.h"

/* Message is request */
#define SIP_REQUEST 1

/* Message is reply */
#define SIP_REPLY   2

/* Invalid message */
#define SIP_INVALID 0

#define SIP_VERSION "SIP/2.0"
#define SIP_VERSION_LEN 7

#define HTTP_VERSION "HTTP/1."
#define HTTP_VERSION_LEN (sizeof(HTTP_VERSION)-1)

#define CANCEL "CANCEL"
#define ACK    "ACK"
#define INVITE "INVITE"

#define INVITE_LEN 6
#define CANCEL_LEN 6
#define ACK_LEN 3
#define BYE_LEN 3
#define INFO_LEN 4
#define REGISTER_LEN 8
#define SUBSCRIBE_LEN 9
#define NOTIFY_LEN 6
#define MESSAGE_LEN 7
#define OPTIONS_LEN 7
#define PRACK_LEN 5
#define UPDATE_LEN 6
#define REFER_LEN 5
#define PUBLISH_LEN 7

struct msg_start {
	short type;					/*!< Type of the message - request/response */
	short flags;				/*!< First line flags */
	int len; 					/*!< length including delimiter */
	union {
		struct {
			str method;       /*!< Method string */
			str uri;          /*!< Request URI */
			str version;      /*!< SIP version */
			int method_value;
		} request;
		struct {
			str version;      /*!< SIP version */
			str status;       /*!< Reply status */
			str reason;       /*!< Reply reason phrase */
			unsigned int /*!< statusclass,*/ statuscode;
		} reply;
	}u;
};



char* parse_first_line(char* buffer, unsigned int len, struct msg_start * fl);

char* parse_fline(char* buffer, char* end, struct msg_start* fl);


#endif /* PARSE_FLINE_H */