Files
openbts-2.8/SIP/SIPUtility.cpp
kurtis.heimerl 478221e5d3 Correction of trivial warnings.
git-svn-id: http://wush.net/svn/range/software/public/openbts/trunk@4670 19bc5d8c-e614-43d4-8b26-e1612bc8e597
2012-12-22 04:30:56 +00:00

130 lines
3.1 KiB
C++

/*
* Copyright 2008 Free Software Foundation, Inc.
*
* This software is distributed under the terms of the GNU Affero Public License.
* See the COPYING file in the main directory for details.
*
* This use of this software may be subject to additional restrictions.
* See the LEGAL file in the main directory for details.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <signal.h>
#include <stdlib.h>
#include <ortp/ortp.h>
#include <osipparser2/osip_md5.h>
#include <osipparser2/sdp_message.h>
#include "SIPInterface.h"
#include "SIPUtility.h"
using namespace SIP;
using namespace std;
#define DEBUG 1
bool SIP::get_owner_ip( osip_message_t * msg, char * o_addr )
{
osip_body_t * sdp_body = (osip_body_t*)osip_list_get(&msg->bodies, 0);
if (!sdp_body) return false;
char * sdp_str = sdp_body->body;
if (!sdp_str) return false;
sdp_message_t * sdp;
sdp_message_init(&sdp);
sdp_message_parse(sdp, sdp_str);
strcpy(o_addr, sdp->o_addr);
return true;
}
bool SIP::get_rtp_params(const osip_message_t * msg, char * port, char * ip_addr )
{
osip_body_t * sdp_body = (osip_body_t*)osip_list_get(&msg->bodies, 0);
if (!sdp_body) return false;
char * sdp_str = sdp_body->body;
if (!sdp_str) return false;
sdp_message_t * sdp;
sdp_message_init(&sdp);
sdp_message_parse(sdp, sdp_str);
strcpy(port,sdp_message_m_port_get(sdp,0));
strcpy(ip_addr, sdp->c_connection->c_addr);
return true;
}
void SIP::make_tag(char * tag)
{
uint64_t r1 = random();
uint64_t r2 = random();
uint64_t val = (r1<<32) + r2;
// map [0->26] to [a-z]
int k;
for (k=0; k<16; k++) {
tag[k] = val%26+'a';
val = val >> 4;
}
tag[k] = '\0';
}
void SIP::make_branch( char * branch )
{
uint64_t r1 = random();
uint64_t r2 = random();
uint64_t val = (r1<<32) + r2;
sprintf(branch,"z9hG4bKobts28%llx", static_cast<long long unsigned int>(val));
}
/* get the return address from the SIP VIA header
if port not available, guess at 5060
if header not available, guess from SIP.Proxy.SMS
-kurtis
*/
string SIP::get_return_address(osip_message_t * msg){
string result;
osip_via* via = (osip_via *) osip_list_get(&msg->vias,0);
if (via){
result = string(via->host);
if (via->port) {
result += string(":") + string(via->port);
}
else {
result += string(":") + string("5060"); //assume SIP
}
}
else { //no via header? Take best guess from conf -k
result = gConfig.getStr("SIP.Proxy.SMS");
}
return result;
}
// vim: ts=4 sw=4