fix_lumps.h
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 /*
  * $Id$
  *
  * here, we delete message lumps which are generated in
  * core functions using pkg_malloc and applied to shmem
  * requests; not doing so would result ugly memory problems
  *
  * I admit it is not a nice hack; -jiri 
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  *
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  * Copyright (C) 2001-2003 FhG Fokus
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  *
  * 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
  *
  * 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
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  */
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 /*
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  * History:
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  * -------
  *  2003-11-24  changed free_via_lump to free_via_clen_lump and make it
  *              handle CONTENTLENGTH lumps also (andrei)
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  *  2005-07-04  lumps in SHM or dup'ed lumps are not freed and an warning
  *               message is logged (temporary fix) (andrei)
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  */
 
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 #ifndef _FIX_LUMPS_H
 #define _FIX_LUMPS_H
 
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 /** @brief used to delete attached via lumps from msg;
 
    msg can be either an original pkg msg, whose Via lump I want
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    to delete before generating next branch, or a shmem-stored
    message processed during on_reply -- then I want to
    delete the Via lump for the same reason
 
    the other case when I want to delete them is when a message
    is stored in shmem for branch picking, forwarded lated and
    Via removal is applied to the shmem-ed message
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    the same thing for Content-Length lumps (FIXME: this
    should be done in a nicer way)
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 */
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 inline static void free_via_clen_lump( struct lump **list )
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 {
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 	struct lump *prev_lump, *lump, *a, *foo, *next;
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 	next=0;
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 	prev_lump=0;
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 	for(lump=*list;lump;lump=next) {
 		next=lump->next;
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 		if (lump->type==HDR_VIA_T||lump->type==HDR_CONTENTLENGTH_T) {
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 			if (lump->flags & (LUMPFLAG_DUPED|LUMPFLAG_SHMEM)){
 				LOG(L_CRIT, "BUG: free_via_clen_lmp: lump %p, flags %x\n",
 						lump, lump->flags);
 				/* ty to continue */
 			}
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 			a=lump->before;
 			while(a) {
 				foo=a; a=a->before;
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 				if (!(foo->flags&(LUMPFLAG_DUPED|LUMPFLAG_SHMEM)))
 					free_lump(foo);
 				if (!(foo->flags&LUMPFLAG_SHMEM))
 					pkg_free(foo);
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 			}
 			a=lump->after;
 			while(a) {
 				foo=a; a=a->after;
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 				if (!(foo->flags&(LUMPFLAG_DUPED|LUMPFLAG_SHMEM)))
 					free_lump(foo);
 				if (!(foo->flags&LUMPFLAG_SHMEM))
 					pkg_free(foo);
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 			}
 			if (prev_lump) prev_lump->next = lump->next;
 			else *list = lump->next;
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 			if (!(lump->flags&(LUMPFLAG_DUPED|LUMPFLAG_SHMEM)))
 				free_lump(lump);
 			if (!(lump->flags&LUMPFLAG_SHMEM))
 				pkg_free(lump);
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 		} else {
 			/* store previous position */
 			prev_lump=lump;
 		}
 	}
 }
 
 #endif