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kamailio/parser/parse_to.c

88 lines
2.1 KiB

/*
* Copyright (C) 2001-2003 Fhg Fokus
*
* This file is part of Kamailio, a free SIP server.
*
* Kamailio 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
*
* Kamailio 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
/** Parser :: Parse To: header.
* @file
* @ingroup parser
*/
#include "parse_to.h"
#include "parse_addr_spec.h"
#include <stdlib.h>
#include <string.h>
#include "../dprint.h"
#include "msg_parser.h"
#include "parse_uri.h"
#include "../ut.h"
#include "../mem/mem.h"
char *parse_to(char *const buffer, const char *const end,
struct to_body *const to_b)
{
return parse_addr_spec(buffer, end, to_b, 0);
}
int parse_to_header(struct sip_msg *const msg)
{
if(!msg->to && (parse_headers(msg, HDR_TO_F, 0) == -1 || !msg->to)) {
LM_ERR("bad msg or missing TO header\n");
return -1;
}
// HDR_TO_T is automatically parsed (get_hdr_field in parser/msg_parser.c)
// so check only ptr validity
if(msg->to->parsed)
return 0;
else
return -1;
}
sip_uri_t *parse_to_uri(sip_msg_t *const msg)
{
to_body_t *tb = NULL;
if(msg == NULL)
return NULL;
if(parse_to_header(msg) < 0) {
LM_ERR("cannot parse TO header\n");
return NULL;
}
if(msg->to == NULL || get_to(msg) == NULL)
return NULL;
tb = get_to(msg);
if(tb->parsed_uri.user.s != NULL || tb->parsed_uri.host.s != NULL)
return &tb->parsed_uri;
if(parse_uri(tb->uri.s, tb->uri.len, &tb->parsed_uri) < 0) {
LM_ERR("failed to parse To uri\n");
memset(&tb->parsed_uri, 0, sizeof(struct sip_uri));
return NULL;
}
return &tb->parsed_uri;
}