Ejemplo n.º 1
0
Bits CNullModem::readChar() {
	Bits rxchar = clientsocket->GetcharNonBlock();
	if (telnet && rxchar>=0) return TelnetEmulation((Bit8u)rxchar);
	else if (rxchar==0xff && !transparent) {// escape char
		// get the next char
		Bits rxchar = clientsocket->GetcharNonBlock();
		if (rxchar==0xff) return rxchar; // 0xff 0xff -> 0xff was meant
		rxchar&0x1? setCTS(true) : setCTS(false);
		rxchar&0x2? setDSR(true) : setDSR(false);
		if (rxchar&0x4) receiveByteEx(0x0,0x10);
		return -1;	// no "payload" received
	} else return rxchar;
}
Ejemplo n.º 2
0
void CSerialDummy::setDTR(bool val) {
#ifdef CHECKIT_TESTPLUG
	setDSR(val);
	setRI(val);
	setCD(val);
#endif
}
Ejemplo n.º 3
0
void CDirectSerial::updateMSR () {
	int new_status = SERIAL_getmodemstatus(comport);

	setCTS(new_status&SERIAL_CTS? true:false);
	setDSR(new_status&SERIAL_DSR? true:false);
	setRI(new_status&SERIAL_RI? true:false);
	setCD(new_status&SERIAL_CD? true:false);
}
Ejemplo n.º 4
0
CSerialDummy::CSerialDummy(Bitu id,	CommandLine* cmd):CSerial(id, cmd) {
	CSerial::Init_Registers();
	setRI(false);
	setDSR(false);
	setCD(false);
	setCTS(false);
	InstallationSuccessful=true;
}
Ejemplo n.º 5
0
CSerialLog::CSerialLog(Bitu id,	CommandLine* cmd):CSerial(id, cmd) {
	CSerial::Init_Registers();
	// DSR+CTS on to make sure the DOS COM device will not get stuck waiting for them
	setRI(false);
	setCD(false);
	setDSR(true);
	setCTS(true);
	InstallationSuccessful=true;
}
void CDirectSerial::updateMSR () {
	DWORD dptr = 0;

	if (!GetCommModemStatus (hCom, &dptr)) {
#ifdef SERIALPORT_DEBUGMSG
//		LOG_MSG ("Serial port at %x: GetCommModemStatus failed!", base);
#endif
		//return;
	}
	setCTS((dptr & MS_CTS_ON)!=0);
	setDSR((dptr & MS_DSR_ON)!=0);
	setRI ((dptr & MS_RING_ON)!=0);
	setCD((dptr & MS_RLSD_ON)!=0);
}
Ejemplo n.º 7
0
void CNullModem::Disconnect() {
	removeEvent(SERIAL_POLLING_EVENT);
	removeEvent(SERIAL_RX_EVENT);
	// it was disconnected; free the socket and restart the server socket
	LOG_MSG("Serial%d: Disconnected.",COMNUMBER);
	delete clientsocket;
	clientsocket=0;
	setDSR(false);
	setCTS(false);
	setCD(false);
	
	if (serverport) {
		serversocket = new TCPServerSocket(serverport);
		if (serversocket->isopen) 
			setEvent(SERIAL_SERVER_POLLING_EVENT, 50);
		else delete serversocket;
	} else if (dtrrespect) {
		setEvent(SERIAL_NULLMODEM_DTR_EVENT,50);
		DTR_delta = getDTR(); // try to reconnect the next time DTR is set
	}
}
Ejemplo n.º 8
0
void CSerialLog::setDTR(bool val) {
	setDSR(val);
	setRI(val);
	setCD(val);
}
Ejemplo n.º 9
0
CNullModem::CNullModem(Bitu id, CommandLine* cmd):CSerial (id, cmd) {
	Bitu temptcpport=23;
	memset(&telClient, 0, sizeof(telClient));
	InstallationSuccessful = false;
	serversocket = 0;
	clientsocket = 0;
	serverport = 0;
	clientport = 0;

	rx_retry = 0;
	rx_retry_max = 20;
	rx_state=N_RX_DISC;

	tx_gather = 12;
	
	dtrrespect=false;
	tx_block=false;
	receiveblock=false;
	transparent=false;
	telnet=false;
	
	Bitu bool_temp=0;

	// usedtr: The nullmodem will
	// 1) when it is client connect to the server not immediately but
	//    as soon as a modem-aware application is started (DTR is switched on).
	// 2) only receive data when DTR is on.
	if (getBituSubstring("usedtr:", &bool_temp, cmd)) {
		if (bool_temp==1) {
			dtrrespect=true;
			transparent=true;
			DTR_delta=false; // connect immediately when DTR is already 1
		}
	}
	// transparent: don't add additional handshake control.
	if (getBituSubstring("transparent:", &bool_temp, cmd)) {
		if (bool_temp==1) transparent=true;
		else transparent=false;
	}
	// telnet: interpret telnet commands.
	if (getBituSubstring("telnet:", &bool_temp, cmd)) {
		if (bool_temp==1) {
			transparent=true;
			telnet=true;
		}
	}
	// rxdelay: How many milliseconds to wait before causing an
	// overflow when the application is unresponsive.
	if (getBituSubstring("rxdelay:", &rx_retry_max, cmd)) {
		if (!(rx_retry_max<=10000)) {
			rx_retry_max=50;
		}
	}
	// txdelay: How many milliseconds to wait before sending data.
	// This reduces network overhead quite a lot.
	if (getBituSubstring("txdelay:", &tx_gather, cmd)) {
		if (!(tx_gather<=500)) {
			tx_gather=12;
		}
	}
	// port is for both server and client
	if (getBituSubstring("port:", &temptcpport, cmd)) {
		if (!(temptcpport>0&&temptcpport<65536)) {
			temptcpport=23;
		}
	}
	// socket inheritance (client-alike)
	if (getBituSubstring("inhsocket:", &bool_temp, cmd)) {
#ifdef NATIVESOCKETS
		if (Netwrapper_GetCapabilities()&NETWRAPPER_TCP_NATIVESOCKET) {
			if (bool_temp==1) {
				int sock;
				if (control->cmdline->FindInt("-socket",sock,true)) {
					dtrrespect=false;
					transparent=true;
					LOG_MSG("Inheritance socket handle: %d",sock);
					if (!ClientConnect(new TCPClientSocket(sock)))
						return;
				} else {
					LOG_MSG("Serial%d: -socket parameter missing.",COMNUMBER);
					return;
				}
			}
		} else {
			LOG_MSG("Serial%d: socket inheritance not supported on this platform.",
				COMNUMBER);
			return;
		}
#else
		LOG_MSG("Serial%d: socket inheritance not available.", COMNUMBER);
#endif
	} else {
		// normal server/client
		std::string tmpstring;
		if (cmd->FindStringBegin("server:",tmpstring,false)) {
			// we are a client
			const char* hostnamechar=tmpstring.c_str();
			size_t hostlen=strlen(hostnamechar)+1;
			if (hostlen>sizeof(hostnamebuffer)) {
				hostlen=sizeof(hostnamebuffer);
				hostnamebuffer[sizeof(hostnamebuffer)-1]=0;
			}
			memcpy(hostnamebuffer,hostnamechar,hostlen);
			clientport=(Bit16u)temptcpport;
			if (dtrrespect) {
				// we connect as soon as DTR is switched on
				setEvent(SERIAL_NULLMODEM_DTR_EVENT, 50);
				LOG_MSG("Serial%d: Waiting for DTR...",COMNUMBER);
			} else if (!ClientConnect(
				new TCPClientSocket((char*)hostnamebuffer,(Bit16u)clientport)))
				return;
		} else {
			// we are a server
			serverport = (Bit16u)temptcpport;
			if (!ServerListen()) return;
		}
	}
	CSerial::Init_Registers();
	InstallationSuccessful = true;

	setCTS(dtrrespect||transparent);
	setDSR(dtrrespect||transparent);
	setRI(false);
	setCD(clientsocket > 0); // CD on if connection established
}