200ackuac.cxx

SIP（Session Initiation Protocol）是由IETF定义

/*
 * VOCAL is licensed under the Vovida Software License, Version 1.0
 * See the LICENSE AND COPYRIGHT section at the end of this file.
 */

static const char* const Ack200UAS_cxx_Version =
    "$Id: 200AckUAC.cxx,v 1.1.2.2 2003/02/20 01:18:47 chok Exp $";
#include "SipTransceiverFilter.hxx"
#include "InviteMsg.hxx"
#include "AckMsg.hxx"
#include "StatusMsg.hxx"
#include "SipSdp.hxx"
#include "Sptr.hxx"
#include "SipVia.hxx"

using namespace Vocal;
using namespace Vocal::SDP;

/*
 *  This is the UAC side of a INVITE-200-ACK test.
 *  It sends an INVITE and then receives a 200 OK response.
 *  When it receives the 200 OK, it sends an ACK.
 *
 *  The UAS side is in 200AckUAS.cxx.
 */

int
main( int argc, char** argv )
{
    if( argc <= 2 )
    {
        cerr << endl << "Error: Missing arguments" << endl;
        cerr << "Usage: " << argv[0] << " <UAC_SIP_port> <UAS_SIP_port>"
             << endl << endl;
        return -1;
    }
    cpLogSetPriority( LOG_DEBUG_STACK );
    // cpLogSetPriority( LOG_NOTICE );

    int sipPort = strtol( argv[1], NULL, 10 );

    SipTransceiverFilter sipStack( argv[0], sipPort );

    Sptr <BaseUrl> toUrl;
    toUrl = BaseUrl::decode( Data("sip:UAS@127.0.0.1:") + Data(argv[2]) );

    int rtpPort = 23450;

    InviteMsg invite( toUrl, sipPort, rtpPort );

    Data branch = invite.computeBranch();
    cout << "INVITE Via branch: " << branch << endl;

    sipStack.sendAsync( invite );

    cout << "Send INVITE" << endl;

    Sptr < SipMsgQueue > mq = sipStack.receive();
    assert( mq != 0 );

    Sptr < StatusMsg > inviteOK;
    inviteOK.dynamicCast( mq->back() );

    if( inviteOK == 0 )
    {
        cerr << "Not a Status Response!" << endl;
        return -1;
    }

    int statusCode = inviteOK->getStatusLine().getStatusCode();

    if( statusCode != 200 )
    {
        cerr << "Not a 200 OK!" << endl;
        return -1;
    }

    cout << "Received 200 OK" << endl;

    // Send ACK
    AckMsg ack( *inviteOK );

    // Change branch in Via: header to make it a different transcation
    branch = ack.computeBranch();
    cout << "ACK Via branch: " << branch << endl;

    SipVia via = ack.getVia();
    via.setBranch( branch );
    ack.flushViaList();
    ack.setVia( via, 0 );

    sipStack.sendAsync( ack );

    cout << "Send ACK" << endl;

    cout << "Test Complete, sleep for 5 seconds" << endl;
    sleep( 5 );

    return 0;
}

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