ANSC_STATUS
AnscSctoCancel
    (
        ANSC_HANDLE                 hThisObject
    )
{
    PANSC_SIMPLE_CLIENT_TCP_OBJECT  pMyObject    = (PANSC_SIMPLE_CLIENT_TCP_OBJECT)hThisObject;

    if ( !pMyObject->bActive )
    {
        return  ANSC_STATUS_SUCCESS;
    }
    else
    {
    	pMyObject->bShuttingDown = TRUE;
        pMyObject->bActive = FALSE;
        pMyObject->bClosed = TRUE;

        while ( pMyObject->EngineTaskCount != 0 )
        {
            AnscSleep(500);
        }

    }

#ifdef _ANSC_USE_OPENSSL_
    if ( pMyObject->hTlsConnection )
    {
        SSL *ssl = (SSL *) pMyObject->hTlsConnection;
    	AnscTrace ("SSL connection %p is closed.\n", ssl);
        SSL_shutdown (ssl);
        SSL_free (ssl);
    }
#else
    if ( pMyObject->bTlsEnabled && pMyObject->hTlsScsIf )
    {
        PTLS_SCS_INTERFACE              pTlsScsIf    = (PTLS_SCS_INTERFACE            )pMyObject->hTlsScsIf;

        AnscSetEvent(&pMyObject->TlsConnEvent);

        if ( pMyObject->hTlsConnection )
        {
            if ( pMyObject->bTlsConnected )
            {
                    pTlsScsIf->CloseConnection
                        (
                            pTlsScsIf->hOwnerContext,
                            pMyObject->hTlsConnection
                        );
            }

                pTlsScsIf->RemoveConnection
                    (
                        pTlsScsIf->hOwnerContext,
                        pMyObject->hTlsConnection
                    );
        }

        pMyObject->bTlsConnected = FALSE;
    }
#endif

    if ( pMyObject->Mode & ANSC_SCTO_MODE_XSOCKET )
    {
        if ( (XSKT_SOCKET)pMyObject->Socket != XSKT_SOCKET_INVALID_SOCKET )
        {
            _xskt_shutdown   (((XSKT_SOCKET)pMyObject->Socket), XSKT_SOCKET_SD_RECV);
            _xskt_closesocket(((XSKT_SOCKET)pMyObject->Socket));

            pMyObject->Socket = (ANSC_SOCKET)XSKT_SOCKET_INVALID_SOCKET;
        }
    }
    else
    {
        if ( pMyObject->Socket != ANSC_SOCKET_INVALID_SOCKET )
        {
            _ansc_shutdown   (pMyObject->Socket, ANSC_SOCKET_SD_RECV);
            _ansc_closesocket(pMyObject->Socket);

            pMyObject->Socket = ANSC_SOCKET_INVALID_SOCKET;
        }
    }

    /*
     * The underlying socket wrapper may require an explicit cleanup() call, such is the case on
     * Microsoft windows platforms. The wrapper initialization has to done for each task. On most
     * real-time operating systems, this call is not required.
     */
    if ( pMyObject->Mode & ANSC_SCTO_MODE_XSOCKET )
    {
        AnscCleanupXsocketWrapper((ANSC_HANDLE)pMyObject);
    }
    else
    {
        AnscCleanupSocketWrapper((ANSC_HANDLE)pMyObject);
    }

    pMyObject->Reset((ANSC_HANDLE)pMyObject);

    return  ANSC_STATUS_SUCCESS;
}
ANSC_STATUS
AnscSctoEngage
    (
        ANSC_HANDLE                 hThisObject
    )
{
    ANSC_STATUS                     returnStatus = ANSC_STATUS_SUCCESS;
    PANSC_SIMPLE_CLIENT_TCP_OBJECT  pMyObject    = (PANSC_SIMPLE_CLIENT_TCP_OBJECT)hThisObject;
    PANSC_SCTO_WORKER_OBJECT        pWorker      = (PANSC_SCTO_WORKER_OBJECT      )pMyObject->hWorker;
    int                             s_error      = 0;
    ansc_socket_addr_in             ansc_client_addr;
    ansc_socket_addr_in             ansc_server_addr;
    xskt_socket_addr_in             xskt_client_addr;
    xskt_socket_addr_in             xskt_server_addr;

#ifdef _ANSC_IPV6_COMPATIBLE_
    ansc_addrinfo                   ansc_hints            = {0};
    ansc_addrinfo*                  pansc_server_addrinfo = NULL;
    ansc_addrinfo*                  pansc_client_addrinfo = NULL;
    xskt_addrinfo                   xskt_hints            = {0};
    xskt_addrinfo*                  pxskt_server_addrinfo = NULL;
    xskt_addrinfo*                  pxskt_client_addrinfo = NULL;
    USHORT                          usPort                = 0;
    char                            port[6] = {0};
#endif

    if ( pMyObject->bActive )
    {
        return  ANSC_STATUS_SUCCESS;
    }
    else if ( !pWorker )
    {
        return  ANSC_STATUS_UNAPPLICABLE;
    }
    else
    {
        /*
         * Just like any other socket-based ANSC object, we will create a separate async recv task
         * which is dedicated to receiving packets. This async recv task is controlled by 'bActive'
         * flag. What if at this moment right before we're about to enable the socket operation and
         * setting 'bActive' flag to TRUE, the old recv task created by the last call of Engage()
         * is still running? While it may not cause crash, but it certainly confuses the owner
         * object because all async recv tasks share the same worker interface. The most obvious
         * solution is to wait for previous recv task to exit before creating a new one.
         */
    	while ( pMyObject->EngineTaskCount != 0 )
        {
            AnscSleep(50);
        }

        pMyObject->bActive = TRUE;
        pMyObject->bClosed = FALSE;
    }

    /*
     * The underlying socket wrapper may require an explicit startup() call, such is the case on
     * Microsoft windows platforms. The wrapper initialization has to done for each task. On most
     * real-time operating systems, this call is not required.
     */
    if ( pMyObject->Mode & ANSC_SCTO_MODE_XSOCKET )
    {
        AnscStartupXsocketWrapper((ANSC_HANDLE)pMyObject);
    }
    else
    {
        AnscStartupSocketWrapper((ANSC_HANDLE)pMyObject);
    }

    #ifdef _ANSC_IPV6_COMPATIBLE_

    if ( pMyObject->Mode & ANSC_SCTO_MODE_XSOCKET )
    {
        xskt_hints.ai_family   = AF_UNSPEC;
        xskt_hints.ai_socktype = XSKT_SOCKET_STREAM;
        xskt_hints.ai_flags    = AI_CANONNAME;

        usPort = pMyObject->GetPeerPort((ANSC_HANDLE)pMyObject);
        _ansc_sprintf(port, "%d", usPort);

        AnscTrace("!!! Peer Port: %s !!!\n", port);

        char * pPeerName = pMyObject->GetPeerName((ANSC_HANDLE)pMyObject);

        AnscTrace("Peer Name: %s!!!\n", pPeerName);

/*
        struct addrinfo hints,*res=NULL;
	memset(&hints,0,sizeof(hints));
	hints.ai_family=PF_UNSPEC;
	hints.ai_socktype=SOCK_DGRAM;
	hints.ai_protocol=IPPROTO_UDP;
	s_error=getaddrinfo("127.0.0.1","123",&hints,&res);
*/
/*
         s_error = _xskt_getaddrinfo
                (
                    "10.74.52.92",
                    port,
                    &xskt_hints,
                    &pxskt_server_addrinfo
                );

        AnscTrace("!!!!!! _xskt_getaddrinfo returns: %d %s !!!\n", s_error, gai_strerror(s_error));
*/
        if ( _xskt_getaddrinfo
                (
                    pMyObject->GetPeerName((ANSC_HANDLE)pMyObject), 
                    port,
                    &xskt_hints,
                    &pxskt_server_addrinfo
                ) ||
             _xskt_getaddrinfo
                (
                    "localhost", 
                    NULL,
                    &xskt_hints,
                    &pxskt_client_addrinfo
                )

            )
        {
            AnscTrace("!!! error 1 !!!\n");

            if ( pMyObject->Mode & ANSC_SCTO_MODE_NO_BSP_NOTIFY_CONN_ERR == 0 )
            {
                pWorker->Notify
	            	(
            		    pWorker->hWorkerContext,
            		    ANSC_SCTOWO_EVENT_SOCKET_ERROR,
            		    (ANSC_HANDLE)NULL
            		);
            }

            returnStatus = ANSC_STATUS_FAILURE;

            goto  EXIT1;
        }

        AnscTrace("!!! after getaddrinfo !!!\n");
    }
    else
    {
        ansc_hints.ai_family   = AF_UNSPEC;
        ansc_hints.ai_socktype = ANSC_SOCKET_STREAM;
        ansc_hints.ai_flags    = AI_CANONNAME;

        usPort = pMyObject->GetPeerPort((ANSC_HANDLE)pMyObject);
        _ansc_sprintf(port, "%d", usPort);

        if ( _ansc_getaddrinfo
                (
                    pMyObject->GetPeerName((ANSC_HANDLE)pMyObject), 
                    port,
                    &ansc_hints,
                    &pansc_server_addrinfo
                ) ||
             _ansc_getaddrinfo
                (
                    "localhost", 
                    NULL,
                    &ansc_hints,
                    &pansc_client_addrinfo
                )
            )
        {
            if ( pMyObject->Mode & ANSC_SCTO_MODE_NO_BSP_NOTIFY_CONN_ERR == 0 )
            {
                pWorker->Notify
	            	(
            		    pWorker->hWorkerContext,
		                ANSC_SCTOWO_EVENT_SOCKET_ERROR,
            	        (ANSC_HANDLE)NULL
	                );
            }

            returnStatus = ANSC_STATUS_FAILURE;

            goto  EXIT1;
        }
    }

#endif

    /*
     * To engage the Tcp Client, we need to perform following acts in the respective order:
     *
     *      (1) create the os-dependent socket
     *      (2) bind to the newly socket
     *      (3) connect to the specified  server address
     *      (4) allocate a buffer for receiving
     *      (5) spawn a separate thread and start receiving
     */
    if ( pMyObject->Mode & ANSC_SCTO_MODE_XSOCKET )
    {
#ifdef _ANSC_IPV6_COMPATIBLE_
        pMyObject->Socket = (ANSC_SOCKET)_xskt_socket(pxskt_server_addrinfo->ai_family, pxskt_server_addrinfo->ai_socktype, 0);
#else
        pMyObject->Socket = (ANSC_SOCKET)_xskt_socket(XSKT_SOCKET_AF_INET, XSKT_SOCKET_STREAM, 0);
#endif

        if ( (XSKT_SOCKET)pMyObject->Socket == XSKT_SOCKET_INVALID_SOCKET )
        {
            AnscTrace("!!!!!!!!!! _xskt_socket error !!!!!!!!!!\n");
            if ( pMyObject->Mode & ANSC_SCTO_MODE_NO_BSP_NOTIFY_CONN_ERR == 0 )
            {
                pWorker->Notify
	    			(
		    			pWorker->hWorkerContext,
			    		ANSC_SCTOWO_EVENT_SOCKET_ERROR,
				    	(ANSC_HANDLE)NULL
    				);
            }

            returnStatus = ANSC_STATUS_FAILURE;

            goto  EXIT1;
        }
        else  AnscTrace("Opening IPv4 socket Ok\n");
    }
    else
    {
#ifdef _ANSC_IPV6_COMPATIBLE_
        pMyObject->Socket = _ansc_socket(pansc_server_addrinfo->ai_family, pansc_server_addrinfo->ai_socktype, 0);
#else
        pMyObject->Socket = _ansc_socket(ANSC_SOCKET_AF_INET, ANSC_SOCKET_STREAM, 0);
#endif

        if ( pMyObject->Socket == ANSC_SOCKET_INVALID_SOCKET )
        {
            if ( pMyObject->Mode & ANSC_SCTO_MODE_NO_BSP_NOTIFY_CONN_ERR == 0 )
            {
                pWorker->Notify
	    			(
		    			pWorker->hWorkerContext,
			    		ANSC_SCTOWO_EVENT_SOCKET_ERROR,
				    	(ANSC_HANDLE)NULL
    				);
            }

            returnStatus = ANSC_STATUS_FAILURE;

            goto  EXIT1;
        }
    }
    /*
     * Normally we don't need to know which local network interface we shall bind to, and the
     * underlying operating system usually supports such notation as "any address".
     */
#ifndef _ANSC_IPV6_COMPATIBLE_
    if ( pMyObject->Mode & ANSC_SCTO_MODE_XSOCKET )
    {
        xskt_client_addr.sin_family = XSKT_SOCKET_AF_INET;
        xskt_client_addr.sin_port   = _xskt_htons(pMyObject->HostPort);

        if (pMyObject->bSocketBindToDevice && *(pMyObject->SocketDeviceName)) 
        {
            if (_xskt_setsocketopt
                    (
                         pMyObject->Socket, 
                         XSKT_SOCKET_SOL_SOCKET, 
                         XSKT_SOCKET_SO_BINDTODEVICE, 
                         pMyObject->SocketDeviceName, 
                         _ansc_strlen(pMyObject->SocketDeviceName) + 1
                    )
                < 0)
            {
                perror("setsockopt-SOL_SOCKET-SO_BINDTODEVICE");
                returnStatus = ANSC_STATUS_FAILURE;
                goto EXIT2;
            }
        }
        //        fprintf(stderr, "<RT XSKT> Binding socket to Device '%s'.\n", pMyObject->SocketDeviceName); 

        if ( pMyObject->HostAddress.Value == 0 )
        {
            ((pansc_socket_addr_in)&xskt_client_addr)->sin_addr.s_addr = XSKT_SOCKET_ANY_ADDRESS;
        }
        else
        {
            ((pansc_socket_addr_in)&xskt_client_addr)->sin_addr.s_addr = pMyObject->HostAddress.Value;
        }

        if ( _xskt_bind((XSKT_SOCKET)pMyObject->Socket, (xskt_socket_addr*)&xskt_client_addr, sizeof(xskt_client_addr)) != 0 )
        {
            AnscTrace("!!!!!!!!!! _xskt_bind error: socket=%d, error=%d !!!!!!!!!!\n", (XSKT_SOCKET)pMyObject->Socket, errno);
            {
                int j;                 
                char s[256];
                char *ptr1 = ((xskt_socket_addr*)(&xskt_client_addr))->sa_data;
                char stmp[16];

                s[0] = '\0';                  
                for(j=0; j<13; j++) {
                    sprintf(stmp, "%.2x:", *(ptr1++));
                    strcat(s, stmp);
                }
                sprintf(stmp, "%.2x", *ptr1); 
                strcat(s, stmp);
                AnscTrace("!!!!!!!!!! _xskt_bind error: client_addr=%s\n", s);
            }
            perror("_xskt_bind error");

            if ( pMyObject->Mode & ANSC_SCTO_MODE_NO_BSP_NOTIFY_CONN_ERR == 0 )
            {
                pWorker->Notify
	    			(
		    			pWorker->hWorkerContext,
			    		ANSC_SCTOWO_EVENT_SOCKET_ERROR,
				    	(ANSC_HANDLE)NULL
    				);
            }
            returnStatus = ANSC_STATUS_FAILURE;

            goto  EXIT2;
        }
    }
    else
    {
        ansc_client_addr.sin_family = ANSC_SOCKET_AF_INET;
        ansc_client_addr.sin_port   = _ansc_htons(pMyObject->HostPort);

        if (pMyObject->bSocketBindToDevice && *(pMyObject->SocketDeviceName)) 
        {
            if (_xskt_setsocketopt
                    (
                         pMyObject->Socket, 
                         ANSC_SOCKET_SOL_SOCKET, 
                         ANSC_SOCKET_SO_BINDTODEVICE, 
                         pMyObject->SocketDeviceName, 
                         _ansc_strlen(pMyObject->SocketDeviceName) + 1
                    )
                < 0)
            {
                perror("setsockopt-SOL_SOCKET-SO_BINDTODEVICE");
                returnStatus = ANSC_STATUS_FAILURE;
                goto EXIT2;
            }
        }
        // fprintf(stderr, "<RT AnscSKT> Binding socket to Device '%s'.\n", pMyObject->SocketDeviceName); 


        if ( pMyObject->HostAddress.Value == 0 )
        {
            ansc_client_addr.sin_addr.s_addr = ANSC_SOCKET_ANY_ADDRESS;
        }
        else
        {
            ansc_client_addr.sin_addr.s_addr = pMyObject->HostAddress.Value;
        }

        if ( _ansc_bind(pMyObject->Socket, (ansc_socket_addr*)&ansc_client_addr, sizeof(ansc_client_addr)) != 0 )
        {
            AnscTrace("!!!!!!!!!! _ansc_bind error: socket=%d, error=%d !!!!!!!!!!\n", (XSKT_SOCKET)pMyObject->Socket, errno);
            {
                int j;                 
                char s[256];
                char *ptr1 = ((ansc_socket_addr*)(&ansc_client_addr))->sa_data;
                char stmp[16];

                s[0] = '\0';                  
                for(j=0; j<13; j++) {
                    sprintf(stmp, "%.2x:", *(ptr1++));
                    strcat(s, stmp);
                }
                sprintf(stmp, "%.2x", *ptr1); 
                strcat(s, stmp);
                AnscTrace("!!!!!!!!!! _ansc_bind error: client_addr=%s\n", s);
            }
            perror("_ansc_bind error");

            if ( pMyObject->Mode & ANSC_SCTO_MODE_NO_BSP_NOTIFY_CONN_ERR == 0 )
            {
                pWorker->Notify
	    			(
		    			pWorker->hWorkerContext,
			    		ANSC_SCTOWO_EVENT_SOCKET_ERROR,
				    	(ANSC_HANDLE)NULL
    				);
            }

            returnStatus = ANSC_STATUS_FAILURE;

            goto  EXIT2;
        }
    }
#endif

    /*
     * As a Tcp client application, we now try to connect the network server, whose address is
     * specified by the "peer address" and "peer port" fields.
     */
    if ( pMyObject->Mode & ANSC_SCTO_MODE_XSOCKET )
    {
#ifdef _ANSC_IPV6_COMPATIBLE_
        BOOL                        bNoConn = TRUE;
#endif

        _ansc_memset(&xskt_server_addr, 0, sizeof(xskt_server_addr));
    	xskt_server_addr.sin_family                                 = XSKT_SOCKET_AF_INET;
        xskt_server_addr.sin_addr.s_addr  = pMyObject->PeerAddress.Value;
        xskt_server_addr.sin_port                                   = _xskt_htons(pMyObject->PeerPort);

#ifdef _ANSC_IPV6_COMPATIBLE_
        while ( bNoConn && pxskt_server_addrinfo )
        {
            if ( _xskt_connect((XSKT_SOCKET)pMyObject->Socket, pxskt_server_addrinfo->ai_addr, pxskt_server_addrinfo->ai_addrlen) != 0 )
            {
                pxskt_server_addrinfo = pxskt_server_addrinfo->ai_next;     /* try next ip address */
            }
            else
            {
                bNoConn = FALSE;
                break;
            }
        }

        if ( bNoConn )
#else
            if ( _xskt_connect((XSKT_SOCKET)pMyObject->Socket, (xskt_socket_addr*)&xskt_server_addr, sizeof(xskt_server_addr)) != 0 )
#endif
        {
            AnscTrace("!!!!!!!!!! _xskt_connect error: socket=%d, error=%d !!!!!!!!!!\n", (XSKT_SOCKET)pMyObject->Socket, errno);
            {
                int j;                 
                char s[256];
                char *ptr1 = ((xskt_socket_addr*)(&xskt_server_addr))->sa_data;
                char stmp[16];

                s[0] = '\0';                  
                for(j=0; j<13; j++) {
                    sprintf(stmp, "%.2x:", *(ptr1++));
                    strcat(s, stmp);
                }
                sprintf(stmp, "%.2x", *ptr1); 
                strcat(s, stmp);
                AnscTrace("!!!!!!!!!! _xskt_connect error: server_addr=%s\n", s);
            }
            perror("_xskt_connect error");

            s_error = _xskt_get_last_error();

            if ( pMyObject->Mode & ANSC_SCTO_MODE_NO_BSP_NOTIFY_CONN_ERR == 0 )
            {
                pWorker->Notify
	    			(
		    			pWorker->hWorkerContext,
			    		ANSC_SCTOWO_EVENT_SOCKET_TIMEOUT,
				    	(ANSC_HANDLE)NULL
    				);
            }
            returnStatus = ANSC_STATUS_FAILURE;

            goto  EXIT2;
        }
    }
    else
    {
        _ansc_memset(&ansc_server_addr, 0, sizeof(ansc_server_addr));
        ansc_server_addr.sin_family      = ANSC_SOCKET_AF_INET;
        ansc_server_addr.sin_addr.s_addr = pMyObject->PeerAddress.Value;
        ansc_server_addr.sin_port        = _ansc_htons(pMyObject->PeerPort);

#ifdef _ANSC_IPV6_COMPATIBLE_
        if ( _ansc_connect(pMyObject->Socket, pansc_server_addrinfo->ai_addr, pansc_server_addrinfo->ai_addrlen) != 0 )
#else
        if ( _ansc_connect(pMyObject->Socket, (ansc_socket_addr*)&ansc_server_addr, sizeof(ansc_server_addr)) != 0 )
#endif
        {
            s_error = _ansc_get_last_error();

            AnscTrace("!!! Connect error: %d, %s !!!\n", s_error, strerror(s_error));

            if ( pMyObject->Mode & ANSC_SCTO_MODE_NO_BSP_NOTIFY_CONN_ERR == 0 )
            {
                pWorker->Notify
				    (
			    		pWorker->hWorkerContext,
		    			ANSC_SCTOWO_EVENT_SOCKET_TIMEOUT,
	    				(ANSC_HANDLE)NULL
    				);
            }

            returnStatus = ANSC_STATUS_FAILURE;

            goto  EXIT2;
        }
    }

    /*
     * We have gone so far that all socket operations succeeded, we want to allocate a buffer that
     * is big enough for any incoming message.
     */
    if ( !pMyObject->RecvBuffer && !(pMyObject->Mode & ANSC_SCTO_MODE_FOREIGN_BUFFER) )
    {
        pMyObject->RecvBuffer     = AnscAllocateMemory(pMyObject->RecvBufferSize);
        pMyObject->RecvPacketSize = 0;
        pMyObject->RecvOffset     = 0;

        if ( !pMyObject->RecvBuffer )
        {
            returnStatus = ANSC_STATUS_RESOURCES;

            goto  EXIT2;
        }
    }

    pMyObject->RecvBytesCount = 0;
    pMyObject->SendBytesCount = 0;
    pMyObject->LastRecvAt     = AnscGetTickInSeconds();
    pMyObject->LastSendAt     = AnscGetTickInSeconds();

    /*
     * If the compilation option '_ANSC_SOCKET_TLS_LAYER_' is enabled, we can simply let the ANSC
     * socket layer to perform the SSL/TLS functionality; otherwise, we need to prepare for doing
     * SSL/TLS internally.
     */
    if ( pMyObject->Mode & ANSC_SCTO_MODE_TLS_ENABLED )
    {
#ifdef _ANSC_USE_OPENSSL_
        pMyObject->bTlsEnabled = TRUE;
        if ( !openssl_init(SSL_CLIENT_CALLS) )
        {
            AnscTrace("AnscSctoEngage - openssl_init() failed!\n");
            returnStatus = ANSC_STATUS_FAILURE;
            goto  EXIT2;
        }

#else
        #ifdef  _ANSC_SOCKET_TLS_LAYER_
        {
            _ansc_en_usetls(pMyObject->Socket);

            pMyObject->bTlsEnabled = FALSE;
        }
        #else
        {
            pMyObject->hTlsScsIf   = (pMyObject->hTlsScsIf != NULL)? pMyObject->hTlsScsIf : AnscSocketTlsGetScsIf();
            pMyObject->bTlsEnabled = TRUE;
        }
        #endif
#endif
    }

    /*
     * To save the worker object from having to deal with blocking/non-blocking/async receiving
     * functions provided by underlying socket layer, we create a separate task to do that.
     */
    returnStatus =
        pMyObject->SpawnTask3
            (
                (ANSC_HANDLE)pMyObject,
                (void*      )pMyObject->RecvTask,
                (ANSC_HANDLE)pMyObject,
                ANSC_SCTO_RECV_TASK_NAME,
                USER_DEFAULT_TASK_PRIORITY,
                11*USER_DEFAULT_TASK_STACK_SIZE

            );
#ifdef _ANSC_USE_OPENSSL_
    if ( pMyObject->bTlsEnabled )
    {
   	    SSL *ssl = NULL;
   	    ssl = openssl_connect (pMyObject->Socket);
	    if ( !ssl )
		{

	        pMyObject->bTlsConnected = FALSE;
	        returnStatus = ANSC_STATUS_FAILURE;

	        //PANSC_SCTO_WORKER_OBJECT        pWorker      = (PANSC_SCTO_WORKER_OBJECT)pMyObject->hWorker;
            if ( pMyObject->Mode & ANSC_SCTO_MODE_NO_BSP_NOTIFY_CONN_ERR == 0 )
            {
                pWorker->Notify
                    (
                        pWorker->hWorkerContext,
                        ANSC_SCTOWO_EVENT_TLS_ERROR,
                        (ANSC_HANDLE)0L
                    );
            }
		}
	    else
	    {
			s_error = openssl_validate_certificate (pMyObject->Socket, pMyObject->HostName, ssl, SSL_CLIENT_CALLS);
		    if ( s_error == 0 )
		    {
		        AnscTrace("AnscSctoEngage - openssl_validate_certificate() failed %p.\n", ssl);

		        //PANSC_SCTO_WORKER_OBJECT        pWorker      = (PANSC_SCTO_WORKER_OBJECT      )pMyObject->hWorker;
                if ( pMyObject->Mode & ANSC_SCTO_MODE_NO_BSP_NOTIFY_CONN_ERR == 0 )
                {
	                pWorker->Notify
	                    (
	                        pWorker->hWorkerContext,
	                        ANSC_SCTOWO_EVENT_TLS_ERROR,
	                        (ANSC_HANDLE)NULL
	                    );
                }
		        returnStatus = ANSC_STATUS_FAILURE;
		    }

		    pMyObject->hTlsConnection = ssl;
		    pMyObject->bTlsConnected = TRUE;
	    }
    }
#else
    /*
     * If SSL/TLS is enabled, we should complete TLS handshake before returning from Engage(). This
     * behavior allows a single consistent API to used between this object and the worker object.
     * Since the handshake will take multiple messages to complete, we need to block the current
     * task until being notified by the TLS module.
     */
    if ( pMyObject->bTlsEnabled && pMyObject->hTlsScsIf )
    {
        pMyObject->bTlsConnected = FALSE;

        pMyObject->InitTlsClient((ANSC_HANDLE)pMyObject);
    }
#endif

    if ( returnStatus != ANSC_STATUS_SUCCESS )
    {
    	goto  EXIT2;
    }

    return  ANSC_STATUS_SUCCESS;


    /******************************************************************
                GRACEFUL ROLLBACK PROCEDURES AND EXIT DOORS
    ******************************************************************/

EXIT2:

	AnscTrace("AnscSctoEngage - failed with status %lu, socket error %d!\n", returnStatus, s_error);

    if ( pMyObject->Mode & ANSC_SCTO_MODE_XSOCKET )
    {
        _xskt_closesocket((XSKT_SOCKET)pMyObject->Socket);
    }
    else
    {
        _ansc_closesocket(pMyObject->Socket);
    }

EXIT1:

    if ( returnStatus != ANSC_STATUS_SUCCESS )
    {
        pMyObject->bActive = FALSE;

        pMyObject->Reset((ANSC_HANDLE)pMyObject);
    }

    return  returnStatus;
}