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114 lines
2.6 KiB
114 lines
2.6 KiB
/*
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* Copyright (C) 2001-2003 FhG Fokus
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*
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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
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version
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*
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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
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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*
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* 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
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* \brief Parser :: Diversion header
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*
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* \ingroup parser
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "../dprint.h"
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#include "../ut.h"
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#include "../mem/mem.h"
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#include "parse_from.h"
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#include "parse_to.h"
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#include "msg_parser.h"
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/*! \brief
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* This method is used to parse DIVERSION header.
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*
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* params: msg : sip msg
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* returns 0 on success,
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* -1 on failure.
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*
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* limitations: it parses only the first occurence
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*/
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int parse_diversion_header(struct sip_msg *msg)
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{
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struct to_body* diversion_b;
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if (!msg->diversion && (parse_headers(msg, HDR_DIVERSION_F, 0) == -1)) {
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goto error;
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}
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if (!msg->diversion) {
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/* header not found */
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return -1;
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}
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/* maybe the header is already parsed! */
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if (msg->diversion->parsed)
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return 0;
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/* bad luck! :-( - we have to parse it */
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/* first, get some memory */
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diversion_b = pkg_malloc(sizeof(struct to_body));
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if (diversion_b == 0) {
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LM_ERR("out of pkg_memory\n");
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goto error;
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}
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/* now parse it!! */
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memset(diversion_b, 0, sizeof(struct to_body));
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parse_addr_spec(msg->diversion->body.s,
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msg->diversion->body.s + msg->diversion->body.len + 1,
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diversion_b, 1);
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if (diversion_b->error == PARSE_ERROR) {
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LM_ERR("bad diversion header\n");
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free_to(diversion_b);
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goto error;
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}
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msg->diversion->parsed = diversion_b;
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return 0;
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error:
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return -1;
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}
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/*! \brief
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* Get the value of a given diversion parameter
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*/
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str *get_diversion_param(struct sip_msg *msg, str* name)
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{
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struct to_param *params;
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if (parse_diversion_header(msg) < 0) {
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LM_ERR("could not get diversion parameter\n");
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return 0;
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}
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params = ((struct to_body*)(msg->diversion->parsed))->param_lst;
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while (params) {
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if ((params->name.len == name->len) &&
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(strncmp(params->name.s, name->s, name->len) == 0)) {
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return ¶ms->value;
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}
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params = params->next;
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}
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return 0;
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}
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