/*
  * $Id$
  *
  * adding/removing headers or any other data chunk from a message

  *

  * 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:
  * --------
  *  2003-01-29  s/int/enum ... more convenient for gdb (jiri)
  *  2003-03-31  added subst lumps -- they expand in ip addr, port a.s.o (andrei)

  *  2003-04-01  added opt (condition) lumps (andrei)

  *  2003-04-02  added more subst lumps: SUBST_{SND,RCV}_ALL  
  *              => ip:port;transport=proto (andrei)

  *  2005-03-22  the type of type attribute changed to enum _hdr_types_t (janakj)

  *

  */
 

 #ifndef data_lump_h
 #define data_lump_h
 

 #include "lump_struct.h"
 #include "parser/msg_parser.h"

 #include "parser/hf.h"

 
 /* adds a header to the end */
 struct lump* append_new_lump(struct lump** list, char* new_hdr,

 							 int len, enum _hdr_types_t type);

 /* inserts a header to the beginning */
 struct lump* insert_new_lump(struct lump** list, char* new_hdr,

 							  int len, enum _hdr_types_t type);

 struct lump* insert_new_lump_after(struct lump* after,

 									char* new_hdr, int len, enum _hdr_types_t type);

 struct lump* insert_new_lump_before(struct lump* before, char* new_hdr,

 									int len,enum _hdr_types_t type);

 /* substitutions (replace with ip address, port etc) */
 struct lump* insert_subst_lump_after(struct lump* after,  enum lump_subst subst,

 									enum _hdr_types_t type);

 struct lump* insert_subst_lump_before(struct lump* before,enum lump_subst subst,

 									enum _hdr_types_t type);

 /* conditional lumps */
 struct lump* insert_cond_lump_after(struct lump* after, enum lump_conditions c,

 									enum _hdr_types_t type);

 struct lump* insert_cond_lump_before(struct lump* after, enum lump_conditions c,

 									enum _hdr_types_t type);

 
 /* removes an already existing header */

 struct lump* del_lump(struct sip_msg* msg, int offset, int len, enum _hdr_types_t type);

 /* set an anchor */

 struct lump* anchor_lump(struct sip_msg* msg, int offset, int len, enum _hdr_types_t type);

 /* duplicates a lump list shallowly in pkg-mem */
 struct lump* dup_lump_list( struct lump *l );
 /* frees a shallowly duplicated lump list */
 void free_duped_lump_list(struct lump* l);
 

 
 /* remove all non-SHMEM lumps from the list */
 void del_nonshm_lump( struct lump** lump_list );
 

 #endif