parser/parse_rpid.c
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 /*
  * Copyright (C) 2001-2003 Juha Heinanen
  *
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  * This file is part of Kamailio, a free SIP server.
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  *
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  * Kamailio is free software; you can redistribute it and/or modify
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  * 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
  *
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  * Kamailio is distributed in the hope that it will be useful,
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  * 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 
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  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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  */
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 /*! \file
  * \brief Parser :: Remote-party-id: header parser
  *
  * \ingroup parser
  */
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 #include "parse_from.h"
 #include "parse_to.h"
 #include <stdlib.h>
 #include <string.h>
 #include "../dprint.h"
 #include "msg_parser.h"
 #include "../ut.h"
 #include "../mem/mem.h"
 
  
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 /*! \brief
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  * This method is used to parse RPID header.
  *
  * params: msg : sip msg
  * returns 0 on success,
  *        -1 on failure.
  */
 int parse_rpid_header( struct sip_msg *msg )
 {
 	struct to_body* rpid_b;
 	
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  	if ( !msg->rpid && (parse_headers(msg, HDR_RPID_F, 0)==-1 || !msg->rpid)) {
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  		goto error;
  	}
  
  	/* maybe the header is already parsed! */
  	if (msg->rpid->parsed)
  		return 0;
  
  	/* bad luck! :-( - we have to parse it */
  	/* first, get some memory */
  	rpid_b = pkg_malloc(sizeof(struct to_body));
  	if (rpid_b == 0) {
  		LOG(L_ERR, "ERROR:parse_rpid_header: out of pkg_memory\n");
  		goto error;
  	}
  
  	/* now parse it!! */
  	memset(rpid_b, 0, sizeof(struct to_body));
  	parse_to(msg->rpid->body.s,msg->rpid->body.s+msg->rpid->body.len+1,rpid_b);
  	if (rpid_b->error == PARSE_ERROR) {
  		LOG(L_ERR, "ERROR:parse_rpid_header: bad rpid header\n");
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  		free_to(rpid_b);
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  		goto error;
  	}
  	msg->rpid->parsed = rpid_b;
  
  	return 0;
  error:
  	return -1;
 }