/* 
 * $Id$ 
 *
 * Copyright (C) 2001-2003 Fhg Fokus
 *
 * This file is part of ser, a free SIP server.
 *
 * ser 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 ser 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
 *
 * ser 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * History:
 * ---------
 * 2003-02-28 scratchpad compatibility abandoned (jiri)
 * 2003-01-27 next baby-step to removing ZT - PRESERVE_ZT (jiri)
 * 2003-05-01 HDR_ACCEPT added (janakj)
 */


#ifndef HF_H
#define HF_H

#include "../str.h"
#include "../comp_defs.h"


/* Header types and flags */
#define HDR_EOH         		-1   /* End of header found */
#define HDR_ERROR                0   /* Error while parsing */
#define HDR_VIA                  1   /* Via header field */
#define HDR_VIA1                 1   /* First Via header field */
#define HDR_VIA2          (1 <<  1)  /* only used as flag*/
#define HDR_TO            (1 <<  2)  /* To header field */
#define HDR_FROM          (1 <<  3)  /* From header field */
#define HDR_CSEQ          (1 <<  4)  /* CSeq header field */
#define HDR_CALLID        (1 <<  5)  /* Call-Id header field */
#define HDR_CONTACT       (1 <<  6)  /* Contact header field */
#define HDR_MAXFORWARDS   (1 <<  7)  /* MaxForwards header field */
#define HDR_ROUTE         (1 <<  8)  /* Route header field */
#define HDR_RECORDROUTE   (1 <<  9)  /* Record-Route header field */
#define HDR_CONTENTTYPE   (1 << 10)  /* Content-Type header field */
#define HDR_CONTENTLENGTH (1 << 11)  /* Content-Length header field */
#define HDR_AUTHORIZATION (1 << 12)  /* Authorization header field */
#define HDR_EXPIRES       (1 << 13)  /* Expires header field */
#define HDR_PROXYAUTH     (1 << 14)  /* Proxy-Authorization header field */
#define HDR_WWWAUTH       (1 << 15)  /* WWW-Authorization header field */
#define HDR_SUPPORTED     (1 << 16)  /* Supported header field */
#define HDR_REQUIRE       (1 << 17)  /* Require header field */
#define HDR_PROXYREQUIRE  (1 << 18)  /* Proxy-Require header field */
#define HDR_UNSUPPORTED   (1 << 19)  /* Unsupported header field */
#define HDR_ALLOW         (1 << 20)  /* Allow header field */
#define HDR_EVENT         (1 << 21)  /* Event header field */
#define HDR_ACCEPT        (1 << 22)  /* Accept header field */
#define HDR_OTHER         (1 << 23)  /* Some other header field */


/* 
 * Format: name':' body 
 */
struct hdr_field {   
	int type;               /* Header field type */
	str name;               /* Header field name */
	str body;               /* Header field body (may not include CRLF) */
	int len;				/* length from hdr start until EoHF (incl.CRLF) */
	void* parsed;           /* Parsed data structures */
	struct hdr_field* next; /* Next header field in the list */
};


/* frees a hdr_field structure,
 * WARNING: it frees only parsed (and not name.s, body.s)
 */
void clean_hdr_field(struct hdr_field* hf);


/* frees a hdr_field list,
 * WARNING: frees only ->parsed and ->next
 */
void free_hdr_field_lst(struct hdr_field* hf);

void dump_hdr_field( struct hdr_field* hf );

#endif /* HF_H */