linbpq/V4.c

/*
Copyright 2001-2022 John Wiseman G8BPQ

This file is part of LinBPQ/BPQ32.

LinBPQ/BPQ32 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 3 of the License, or
(at your option) any later version.

LinBPQ/BPQ32 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 LinBPQ/BPQ32.  If not, see http://www.gnu.org/licenses
*/	

//
//	DLL to provide interface to allow G8BPQ switch to use the V4 TNC as a Port Driver 
//
//	Uses BPQ EXTERNAL interface
//
// Uses a number of routines in WINMOR.c


#define _CRT_SECURE_NO_DEPRECATE

#include <stdio.h>
#include <time.h>


#define SD_RECEIVE      0x00
#define SD_SEND         0x01
#define SD_BOTH         0x02


#include "CHeaders.h"
#include "tncinfo.h"
#include "bpq32.h"

extern int (WINAPI FAR *GetModuleFileNameExPtr)();

#define WSA_ACCEPT WM_USER + 1
#define WSA_DATA WM_USER + 2
#define WSA_CONNECT WM_USER + 3

static int Socket_Data(int sock, int error, int eventcode);
INT_PTR CALLBACK ConfigDialogProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);

KillTNC(struct TNCINFO * TNC);
RestartTNC(struct TNCINFO * TNC);
KillPopups(struct TNCINFO * TNC);
VOID MoveWindows(struct TNCINFO * TNC);
char * CheckAppl(struct TNCINFO * TNC, char * Appl);
static VOID ChangeMYC(struct TNCINFO * TNC, char * Call);
int DoScanLine(struct TNCINFO * TNC, char * Buff, int Len);

static char ClassName[]="V4STATUS";
static char WindowTitle[] = "V4TNC";
static int RigControlRow = 147;

#define V4
#define NARROWMODE 0
#define WIDEMODE 0

#include <commctrl.h>


extern int SemHeldByAPI;

static RECT Rect;

static int ProcessLine(char * buf, int Port);

// RIGCONTROL COM60 19200 ICOM IC706 5e 4 14.103/U1w 14.112/u1 18.1/U1n 10.12/l1



static int ProcessLine(char * buf, int Port)
{
	UCHAR * ptr,* p_cmd;
	char * p_ipad = 0;
	char * p_port = 0;
	unsigned short WINMORport = 0;
	int BPQport;
	int len=510;
	struct TNCINFO * TNC;
	char errbuf[256];

	strcpy(errbuf, buf);

	ptr = strtok(buf, " \t\n\r");

	if (ptr == NULL) return (TRUE);

	if (*ptr == '#') return (TRUE);			// comment

	if (*ptr == ';') return (TRUE);			// comment

	if (_stricmp(buf, "ADDR"))
		return FALSE;						// Must start with ADDR

	ptr = strtok(NULL, " \t\n\r");

	BPQport = Port;
	p_ipad = ptr;

	TNC = TNCInfo[BPQport] = malloc(sizeof(struct TNCINFO));
	memset(TNC, 0, sizeof(struct TNCINFO));

	TNC->InitScript = malloc(1000);
	TNC->InitScript[0] = 0;


	if (p_ipad == NULL)
		p_ipad = strtok(NULL, " \t\n\r");

	if (p_ipad == NULL) return (FALSE);
	
	p_port = strtok(NULL, " \t\n\r");
			
	if (p_port == NULL) return (FALSE);

	WINMORport = atoi(p_port);

	TNC->destaddr.sin_family = AF_INET;
	TNC->destaddr.sin_port = htons(WINMORport);
	TNC->Datadestaddr.sin_family = AF_INET;
	TNC->Datadestaddr.sin_port = htons(WINMORport+1);

	TNC->HostName = malloc(strlen(p_ipad)+1);

	if (TNC->HostName == NULL) return TRUE;

	strcpy(TNC->HostName,p_ipad);

	ptr = strtok(NULL, " \t\n\r");

	if (ptr)
	{
		if (_stricmp(ptr, "PTT") == 0)
		{
			ptr = strtok(NULL, " \t\n\r");

			if (ptr)
			{
				DecodePTTString(TNC, ptr);
				ptr = strtok(NULL, " \t\n\r");
			}
		}
	}
		
	if (ptr)
	{
		if (_memicmp(ptr, "PATH", 4) == 0)
		{
			p_cmd = strtok(NULL, "\n\r");
			if (p_cmd) TNC->ProgramPath = _strdup(p_cmd);
		}
	}

	// Read Initialisation lines

	while(TRUE)
	{
		if (GetLine(buf) == 0)
			return TRUE;

		strcpy(errbuf, buf);

		if (memcmp(buf, "****", 4) == 0)
			return TRUE;

		ptr = strchr(buf, ';');
		if (ptr)
		{
			*ptr++ = 13;
			*ptr = 0;
		}
				
		if ((_memicmp(buf, "CAPTURE", 7) == 0) || (_memicmp(buf, "PLAYBACK", 8) == 0))
		{}		// Ignore
		else
		if (_memicmp(buf, "WL2KREPORT", 10) == 0)
		{}		// Ignore
		else

		strcat (TNC->InitScript, buf);
	}

	return (TRUE);	
}



void ConnecttoWINMORThread(int port);
VOID V4ProcessDataSocketData(int port);
int ConnecttoWINMOR();
int ProcessReceivedData(struct TNCINFO * TNC);
VOID ReleaseTNC(struct TNCINFO * TNC);
VOID SuspendOtherPorts(struct TNCINFO * ThisTNC);
VOID ReleaseOtherPorts(struct TNCINFO * ThisTNC);
VOID WritetoTrace(struct TNCINFO * TNC, char * Msg, int Len);

static time_t ltime;

#pragma pack()

static SOCKADDR_IN sinx; 
static SOCKADDR_IN rxaddr;

static int addrlen=sizeof(sinx);

static fd_set readfs;
static fd_set writefs;
static fd_set errorfs;
static struct timeval timeout;

static VOID ChangeMYC(struct TNCINFO * TNC, char * Call)
{
	UCHAR TXMsg[100];
	int datalen;

	if (strcmp(Call, TNC->CurrentMYC) == 0)
		return;								// No Change

	strcpy(TNC->CurrentMYC, Call);

//	send(TNC->TCPSock, "CODEC FALSE\r\n", 13, 0);

	datalen = sprintf(TXMsg, "MYCALL %s\r\n", Call);
	send(TNC->TCPSock,TXMsg, datalen, 0);

//	send(TNC->TCPSock, "CODEC TRUE\r\n", 12, 0);
//	TNC->StartSent = TRUE;

//	send(TNC->TCPSock, "MYCALL\r\n", 8, 0);
}

static size_t ExtProc(int fn, int port, PDATAMESSAGE buff)
{
	int datalen;
	PMSGWITHLEN buffptr;
	int i,winerr;
	char txbuff[500];
	char Status[80];
	unsigned int bytes,txlen=0;
	char ErrMsg[255];
	int Param;
	HKEY hKey=0;
	struct TNCINFO * TNC = TNCInfo[port];
	struct STREAMINFO * STREAM = &TNC->Streams[0];

	if (TNC == NULL)
		return 0;							// Port not defined

	switch (fn)
	{
	case 1:				// poll

		while (TNC->PortRecord->UI_Q)			// Release anything accidentally put on UI_Q
		{
			buffptr = Q_REM(&TNC->PortRecord->UI_Q);
			ReleaseBuffer(buffptr);
		}

		if (TNC->BusyDelay)
		{
			// Still Busy?

			if ((TNC->Busy & CDBusy) == 0)
			{
				// No, so send

				send(TNC->TCPSock, TNC->ConnectCmd, (int)strlen(TNC->ConnectCmd), 0);
				TNC->Streams[0].Connecting = TRUE;

				memset(TNC->Streams[0].RemoteCall, 0, 10);
				memcpy(TNC->Streams[0].RemoteCall, &TNC->ConnectCmd[11], strlen(TNC->ConnectCmd)-13);

				sprintf(Status, "%s Connecting to %s", TNC->Streams[0].MyCall, TNC->Streams[0].RemoteCall);
				MySetWindowText(TNC->xIDC_TNCSTATE, Status);
				strcpy(TNC->WEB_TNCSTATE, Status);

				free(TNC->ConnectCmd);
				TNC->BusyDelay = 0;
			}
			else
			{
				// Wait Longer

				TNC->BusyDelay--;

				if (TNC->BusyDelay == 0)
				{
					// Timed out - Send Error Response

					PMSGWITHLEN buffptr = GetBuff();

					if (buffptr == 0) return (0);			// No buffers, so ignore

					buffptr->Len = sprintf(buffptr->Data, "Sorry, Can't Connect - Channel is busy\r");

					C_Q_ADD(&TNC->WINMORtoBPQ_Q, buffptr);
					free(TNC->ConnectCmd);

				}
			}
		}

		if (TNC->HeartBeat++ > 600 || (TNC->Streams[0].Connected && TNC->HeartBeat > 50))			// Every Minute unless connected
		{
			TNC->HeartBeat = 0;

			if (TNC->CONNECTED)

				// Probe link

				send(TNC->TCPSock, "BUFFER\r\n", 8, 0);
		}

		if (TNC->FECMode)
		{
			if (TNC->FECIDTimer++ > 6000)		// ID every 10 Mins
			{
				if (!TNC->Busy)
				{
					TNC->FECIDTimer = 0;
					send(TNC->TCPSock, "SENDID 0\r\n", 10, 0);
				}
			}
			if (TNC->FECPending)	// Check if FEC Send needed
			{
				if (!TNC->Busy)
				{
					TNC->FECPending = 0;

					if (TNC->FEC1600)
						send(TNC->TCPSock,"FECSEND 1600\r\n", 14, 0);
					else
						send(TNC->TCPSock,"FECSEND 500\r\n", 13, 0);
				}
			}
		}

		if (STREAM->NeedDisc)
		{
			STREAM->NeedDisc--;

			if (STREAM->NeedDisc == 0)
			{
				// Send the DISCONNECT

				send(TNC->TCPSock,"ARQEND\r\n", 8, 0);
				TNC->Streams[0].ARQENDSent = TRUE;
			}
		}

		if (TNC->DiscPending)
		{
			TNC->DiscPending--;

			if (TNC->DiscPending == 0)
			{
				// Too long in Disc Pending - Kill and Restart TNC

				if (TNC->PID)
				{
					KillTNC(TNC);
					RestartTNC(TNC);
				}
			}
		}
/*
		if (TNC->UpdateWL2K)
		{
			TNC->UpdateWL2KTimer--;

			if (TNC->UpdateWL2KTimer == 0)
			{
				TNC->UpdateWL2KTimer = 32910/2;		// Every Hour
				if (CheckAppl(TNC, "RMS         ")) // Is RMS Available?
					SendReporttoWL2K(TNC);
			}
		}
*/
		if (TNC->RIG)
		{
			if (TNC->RIG->RigFreq != TNC->LastFreq)
			{
				char FREQMsg[80];
				int Len;
				
				TNC->LastFreq = TNC->RIG->RigFreq;
				Len = sprintf(FREQMsg, "DISPLAY CF:%1.4f\r\n", TNC->LastFreq + .0015);
				send(TNC->TCPSock,FREQMsg, Len, 0);
			}
		}

		if (TNC->TimeSinceLast++ > 700)			// Allow 10 secs for Keepalive
		{
			// Restart TNC
		
			if (TNC->ProgramPath)
			{
				if (strstr(TNC->ProgramPath, "V4 TNC"))
				{
					struct tm * tm;
					char Time[80];
				
					TNC->Restarts++;
					TNC->LastRestart = time(NULL);

					tm = gmtime(&TNC->LastRestart);	
				
					sprintf_s(Time, sizeof(Time),"%04d/%02d/%02d %02d:%02dZ",
						tm->tm_year +1900, tm->tm_mon+1, tm->tm_mday, tm->tm_hour, tm->tm_min);

					MySetWindowText(TNC->xIDC_RESTARTTIME, Time);
					strcpy(TNC->WEB_RESTARTTIME, Time);

					sprintf_s(Time, sizeof(Time),"%d", TNC->Restarts);
					MySetWindowText(TNC->xIDC_RESTARTS, Time);
					strcpy(TNC->WEB_RESTARTS, Time);

					KillTNC(TNC);
					RestartTNC(TNC);

					TNC->TimeSinceLast = 0;
				}
			}
		}

		if (TNC->PortRecord->ATTACHEDSESSIONS[0] && TNC->Streams[0].Attached == 0)
		{
			// New Attach

			int calllen;
			char Msg[80];

			TNC->Streams[0].Attached = TRUE;
			TNC->Streams[0].ARQENDSent = FALSE;

			calllen = ConvFromAX25(TNC->PortRecord->ATTACHEDSESSIONS[0]->L4USER, TNC->Streams[0].MyCall);
			TNC->Streams[0].MyCall[calllen] = 0;

			// Stop Listening, and set MYCALL to user's call

//			send(TNC->TCPSock, "LISTEN FALSE\r\n", 14, 0);
			ChangeMYC(TNC, TNC->Streams[0].MyCall);

			// Stop other ports in same group

			SuspendOtherPorts(TNC);

			sprintf(Status, "In Use by %s", TNC->Streams[0].MyCall);
			MySetWindowText(TNC->xIDC_TNCSTATE, Status);
			strcpy(TNC->WEB_TNCSTATE, Status);

			// Stop Scanning

			sprintf(Msg, "%d SCANSTOP", TNC->Port);
	
			Rig_Command( (TRANSPORTENTRY *) -1, Msg);

		}

		if (TNC->Streams[0].Attached)
			CheckForDetach(TNC, 0, &TNC->Streams[0], TidyClose, ForcedClose, CloseComplete);

		if (TNC->Streams[0].ReportDISC)
		{
			TNC->Streams[0].ReportDISC = FALSE;
			buff->PORT = 0;
			return -1;
		}

			if (TNC->CONNECTED == FALSE && TNC->CONNECTING == FALSE)
			{
				//	See if time to reconnect
		
				time(&ltime);
				if (ltime - TNC->lasttime >9 )
				{
					TNC->LastFreq = 0;			//	so display will be updated
					ConnecttoWINMOR(port);
					TNC->lasttime = ltime;
				}
			}
		
			FD_ZERO(&readfs);
			
			if (TNC->CONNECTED) FD_SET(TNC->TCPDataSock,&readfs);
			
			FD_ZERO(&writefs);

			if (TNC->BPQtoWINMOR_Q) FD_SET(TNC->TCPDataSock,&writefs);	// Need notification of busy clearing

			FD_ZERO(&errorfs);
		
			if (TNC->CONNECTING || TNC->CONNECTED) FD_SET(TNC->TCPDataSock,&errorfs);

			if (select((int)TNC->TCPSock + 1, &readfs, &writefs, &errorfs, &timeout) > 0)
			{
				//	See what happened

				if (readfs.fd_count == 1)
					V4ProcessDataSocketData(port);			
				
				if (writefs.fd_count == 1)
				{
					// Write block has cleared. Send rest of packet

					buffptr=Q_REM(&TNC->BPQtoWINMOR_Q);
					txlen = (unsigned int)buffptr->Len;

					memcpy(txbuff,buffptr->Data, txlen);
					bytes=send(TNC->TCPSock,(const char FAR *)&txbuff,txlen,0);
					ReleaseBuffer(buffptr);
				}
					
				if (errorfs.fd_count == 1)
				{
					i=sprintf(ErrMsg, "V4 Data Connection lost for BPQ Port %d\n", port);
					WritetoConsole(ErrMsg);
					TNC->CONNECTING = FALSE;
					TNC->CONNECTED = FALSE;
					TNC->Streams[0].ReportDISC = TRUE;
				}
			}
		
		// See if any frames for this port

		if (TNC->WINMORtoBPQ_Q != 0)
		{
			buffptr = Q_REM(&TNC->WINMORtoBPQ_Q);

			datalen = (int)buffptr->Len;

			buff->PORT = 0;						// Compatibility with Kam Driver
			buff->PID = 0xf0;
			memcpy(&buff->L2DATA[0], buffptr->Data, datalen);

			datalen += sizeof(void *) + 4;
			PutLengthinBuffer(buff, (int)datalen);
	
			ReleaseBuffer(buffptr);

			return (1);
		}

		return (0);

	case 2:				// send

		if (!TNC->CONNECTED)
		{
			// Send Error Response

			PMSGWITHLEN buffptr = GetBuff();

			if (buffptr == 0) return (0);			// No buffers, so ignore

			buffptr->Len = sprintf(buffptr->Data, "No Connection to V4 TNC\r");

			C_Q_ADD(&TNC->WINMORtoBPQ_Q, buffptr);
			
			return 0;		// Don't try if not connected
		}

		if (TNC->BPQtoWINMOR_Q)
			return 0;		// Socket is blocked - just drop packets till it clears

		if (TNC->SwallowSignon)
		{
			TNC->SwallowSignon = FALSE;		// Discard *** connected
			return 0;
		}

		txlen = GetLengthfromBuffer(buff) - (MSGHDDRLEN + 1);		// 1 as no PID

		if (TNC->Streams[0].Connected)
			bytes=send(TNC->TCPDataSock, buff->L2DATA, txlen,0);
		else
		{
			if (_memicmp(buff->L2DATA, "D\r", 2) == 0)
			{
				TNC->Streams[0].ReportDISC = TRUE;		// Tell Node
				return 0;
			}
	
			if (TNC->FECMode)
			{
				char Buffer[300];
				int len;

				// Send FEC Data

				buff->L2DATA[txlen] = 0;
				len = sprintf(Buffer, "%-9s: %s", TNC->Streams[0].MyCall, buff->L2DATA);

				send(TNC->TCPDataSock, Buffer, len, 0);

/*				if (TNC->Busy)
				{
					TNC->FECPending = 1;
				}
				else
				{
					if (TNC->FEC1600)
						send(TNC->TCPSock,"FECSEND 1600\r\n", 14, 0);
					else
						send(TNC->TCPSock,"FECSEND 500\r\n", 13, 0);
				}
*/				return 0;
			}


			// See if Local command (eg RADIO)

			if (_memicmp(buff->L2DATA, "RADIO ", 6) == 0)
			{
				sprintf(buff->L2DATA, "%d %s", TNC->Port, &buff->L2DATA[6]);

				if (Rig_Command(TNC->PortRecord->ATTACHEDSESSIONS[0]->L4CROSSLINK, buff->L2DATA))
				{
				}
				else
				{
					PMSGWITHLEN buffptr = GetBuff();

					if (buffptr == 0) return 1;			// No buffers, so ignore

					buffptr->Len = sprintf(buffptr->Data, buff->L2DATA);
					C_Q_ADD(&TNC->WINMORtoBPQ_Q, buffptr);
				}
				return 1;
			}

			if (_memicmp(buff->L2DATA, "CODEC TRUE", 9) == 0)
				TNC->StartSent = TRUE;

			if (_memicmp(buff->L2DATA, "D\r", 2) == 0)
			{
				TNC->Streams[0].ReportDISC = TRUE;		// Tell Node
				return 0;
			}

			if (_memicmp(&buff[8], "FEC\r", 4) == 0 || _memicmp(&buff[8], "FEC ", 4) == 0)
			{
				TNC->FECMode = TRUE;
				TNC->FECIDTimer = 0;
				send(TNC->TCPSock,"MODE FEC\r\n", 10, 0);
				strcpy(TNC->WEB_MODE, "FEC");
				MySetWindowText(TNC->xIDC_MODE, TNC->WEB_MODE);

				return 0;
			}

			// See if a Connect Command. If so, start codec and set Connecting

			if (toupper(buff->L2DATA[0]) == 'C' && buff->L2DATA[1] == ' ' && txlen > 2)	// Connect
			{
				char Connect[80] = "ARQCONNECT ";

				memcpy(&Connect[11], &buff->L2DATA[2], txlen);
				txlen += 9;
				Connect[txlen++] = 0x0a;
				Connect[txlen] = 0;

				_strupr(Connect);

				// See if Busy
				
				if (TNC->Busy & CDBusy)
				{
					// Channel Busy. Unless override set, wait

					if (TNC->OverrideBusy == 0)
					{
						// Save Command, and wait up to 10 secs

						TNC->ConnectCmd = _strdup(Connect);
						TNC->BusyDelay = 100;		// 10 secs
						return 0;
					}
				}

				TNC->OverrideBusy = FALSE;

				bytes=send(TNC->TCPSock, Connect, txlen, 0);
				TNC->Streams[0].Connecting = TRUE;

				memset(TNC->Streams[0].RemoteCall, 0, 10);
				memcpy(TNC->Streams[0].RemoteCall, &Connect[11], txlen-13);

				sprintf(Status, "%s Connecting to %s", TNC->Streams[0].MyCall, TNC->Streams[0].RemoteCall);
				MySetWindowText(TNC->xIDC_TNCSTATE, Status);
				strcpy(TNC->WEB_TNCSTATE, Status);

			}
			else
			{
				buff->L2DATA[txlen++] = 0x0a;
				bytes=send(TNC->TCPSock, buff->L2DATA, txlen, 0);
			}
		}
		if (bytes != txlen)
		{

			// WINMOR doesn't seem to recover from a blocked write. For now just reset
			
			winerr = WSAGetLastError();
				
			sprintf(ErrMsg, "V4 Write Failed for port %d - error code = %d\n", port, winerr);
			WritetoConsole(ErrMsg);
			closesocket(TNC->TCPSock);	
			TNC->CONNECTED = FALSE;

			return (0);
		}
		return (0);

	case 3:	
		
		// CHECK IF OK TO SEND (And check TNC Status)

		if (TNC->Streams[0].Attached == 0)
			return TNC->CONNECTED << 8 | 1;

		return (TNC->CONNECTED << 8 | TNC->Streams[0].Disconnecting << 15);		// OK
			
		break;

	case 4:				// reinit

		return (0);

	case 5:				// Close

		send(TNC->TCPSock, "CODEC FALSE\r\n", 13, 0);
		Sleep(100);
		shutdown(TNC->TCPDataSock, SD_BOTH);
		shutdown(TNC->TCPSock, SD_BOTH);
		Sleep(100);

		closesocket(TNC->TCPDataSock);
		closesocket(TNC->TCPSock);

		if (TNC->PID && TNC->WeStartedTNC)
		{
			KillTNC(TNC);
		}

		return (0);

	case 6:				// Scan Stop Interface

		Param = (int)(size_t)buff;

		if (Param == 1)		// Request Permission
		{
			if (!TNC->ConnectPending)
				return 0;	// OK to Change

//			send(TNC->TCPSock, "LISTEN FALSE\r\n", 14, 0);

			return TRUE;
		}

		if (Param == 2)		// Check  Permission
		{
			if (TNC->ConnectPending)
				return -1;	// Skip Interval

			return 1;		// OK to change
		}

		if (Param == 3)		// Release  Permission
		{
//			send(TNC->TCPSock, "LISTEN TRUE\r\n", 13, 0);
			return 0;
		}

		if (Param == 4)		// Set Wide Mode
		{
			send(TNC->TCPSock, "BW 1600\r\n", 9, 0);
			return 0;
		}

		if (Param == 5)		// Set Narrow Mode
		{
			send(TNC->TCPSock, "BW 500\r\n", 8, 0);
			return 0;
		}

		return 0;
	}
	return 0;
}

VOID V4ProcessDataSocketData(int port)
{
	// Info on Data Socket - just packetize and send on
	
	struct TNCINFO * TNC = TNCInfo[port];
	int InputLen, PacLen = 236, i;
	PMSGWITHLEN buffptr;
	char * msg;
		
	TNC->TimeSinceLast = 0;

loop:
	buffptr = GetBuff();

	if (buffptr == NULL) return;			// No buffers, so ignore
			
	InputLen=recv(TNC->TCPDataSock, (char *)&buffptr[2], PacLen, 0);

	if (InputLen == -1)
	{
		ReleaseBuffer(buffptr);
		return;
	}


	//Debugprintf("Winmor: RXD %d bytes", InputLen);

	if (InputLen == 0)
	{
		// Does this mean closed?
		
		strcpy(TNC->WEB_COMMSSTATE, "Connection to TNC lost");
		MySetWindowText(TNC->xIDC_COMMSSTATE, TNC->WEB_COMMSSTATE);

	
		TNC->CONNECTING = FALSE;
		TNC->CONNECTED = FALSE;
		TNC->Streams[0].ReportDISC = TRUE;

		ReleaseBuffer(buffptr);
		return;					
	}


	msg = buffptr->Data;

	// Message should always be received in 17 char chunks. 17th is a status byte
	// In ARQ, 6 = "Echo as sent" ack

	if (InputLen != 17)
	{
		Debugprintf("V4 TNC incorrect RX Len  = %d", InputLen);
		goto loop;
	}

	if (msg[16] == 0x06)
		goto loop;

	InputLen = 16;

	for (i = 0; i < 16; i++)
	{
		if (msg[i] == 0)
			break;

		if (msg[i] == 10)
			continue;

		if (msg[i] < 0x20 || msg[i] > 0x7e)
			msg[i] = '?';
	}


	msg[InputLen] = 0;	
	
	WritetoTrace(TNC, msg, InputLen);
		
	// V4 Sends null padded blocks
	
	InputLen = (int)strlen(buffptr->Data);

	if (msg[InputLen - 1] == 10)		// LF
	{
		// Replace with CRLF

		msg[InputLen-1] = 13;		// Add CR
		msg[InputLen++] = 10;
	}

	buffptr->Len = InputLen;
	C_Q_ADD(&TNC->WINMORtoBPQ_Q, buffptr);

	goto loop;
}




static VOID ReleaseTNC(struct TNCINFO * TNC)
{
	// Set mycall back to Node or Port Call

	ChangeMYC(TNC, TNC->NodeCall);

//	send(TNC->TCPSock, "LISTEN TRUE\r\nMAXCONREQ 4\r\n", 26, 0);

	MySetWindowText(TNC->xIDC_TNCSTATE, "Free");
	strcpy(TNC->WEB_TNCSTATE, "Free");
	
	//	Start Scanner
				
	ReleaseOtherPorts(TNC);

}

static int WebProc(struct TNCINFO * TNC, char * Buff, BOOL LOCAL)
{
	int Len = sprintf(Buff, "<html><meta http-equiv=expires content=0><meta http-equiv=refresh content=15>"
		"<script type=\"text/javascript\">\r\n"
		"function ScrollOutput()\r\n"
		"{var textarea = document.getElementById('textarea');"
		"textarea.scrollTop = textarea.scrollHeight;}</script>"
		"</head><title>V4 Status</title></head><body id=Text onload=\"ScrollOutput()\">"
		"<h2>V4 Status</h2>");

	Len += sprintf(&Buff[Len], "<table style=\"text-align: left; width: 500px; font-family: monospace; align=center \" border=1 cellpadding=2 cellspacing=2>");

	Len += sprintf(&Buff[Len], "<tr><td width=110px>Comms State</td><td>%s</td></tr>", TNC->WEB_COMMSSTATE);
	Len += sprintf(&Buff[Len], "<tr><td>TNC State</td><td>%s</td></tr>", TNC->WEB_TNCSTATE);
	Len += sprintf(&Buff[Len], "<tr><td>Mode</td><td>%s</td></tr>", TNC->WEB_MODE);
	Len += sprintf(&Buff[Len], "<tr><td>Channel State</td><td>%s</td></tr>", TNC->WEB_CHANSTATE);
	Len += sprintf(&Buff[Len], "<tr><td>Proto State</td><td>%s</td></tr>", TNC->WEB_PROTOSTATE);
	Len += sprintf(&Buff[Len], "<tr><td>Traffic</td><td>%s</td></tr>", TNC->WEB_TRAFFIC);
//	Len += sprintf(&Buff[Len], "<tr><td>TNC Restarts</td><td></td></tr>", TNC->WEB_RESTARTS);
	Len += sprintf(&Buff[Len], "</table>");

	Len += sprintf(&Buff[Len], "<textarea rows=10 style=\"width:500px; height:250px;\" id=textarea >%s</textarea>", TNC->WebBuffer);
	Len = DoScanLine(TNC, Buff, Len);

	return Len;
}




void * V4ExtInit(EXTPORTDATA * PortEntry)
{
	int i, port;
	char Msg[255];
	char * ptr;
	struct TNCINFO * TNC;
	char * TempScript;
	
	port = PortEntry->PORTCONTROL.PORTNUMBER;

	ReadConfigFile(port, ProcessLine);

	TNC = TNCInfo[port];

	if (TNC == NULL)
	{
		// Not defined in Config file

		sprintf(Msg," ** Error - no info in BPQ32.cfg for this port\n");
		WritetoConsole(Msg);

		return ExtProc;
	}

	TNC->Port = port;

	if (TNC->ProgramPath)
		TNC->WeStartedTNC = RestartTNC(TNC);

	TNC->Hardware = H_V4;

	TNC->PortRecord = PortEntry;

	if (PortEntry->PORTCONTROL.PORTCALL[0] == 0)
		memcpy(TNC->NodeCall, MYNODECALL, 10);
	else
		ConvFromAX25(&PortEntry->PORTCONTROL.PORTCALL[0], TNC->NodeCall);

	if (PortEntry->PORTCONTROL.PORTINTERLOCK && TNC->RXRadio == 0 && TNC->TXRadio == 0)
		TNC->RXRadio = TNC->TXRadio = PortEntry->PORTCONTROL.PORTINTERLOCK;

	PortEntry->PORTCONTROL.PROTOCOL = 10;
	PortEntry->PORTCONTROL.PORTQUALITY = 0;
	PortEntry->MAXHOSTMODESESSIONS = 1;	
//	PortEntry->SCANCAPABILITIES = SIMPLE;			// Scan Control - pending connect only

	if (PortEntry->PORTCONTROL.PORTPACLEN == 0)
		PortEntry->PORTCONTROL.PORTPACLEN = 236;

	ptr=strchr(TNC->NodeCall, ' ');
	if (ptr) *(ptr) = 0;					// Null Terminate

	// Set Essential Params and MYCALL

	// Put overridable ones on front, essential ones on end

	TempScript = malloc(1000);

	strcpy(TempScript, "DebugLog True\r\n");
	strcat(TempScript, "AUTOID FALSE\r\n");
	strcat(TempScript, "CODEC FALSE\r\n");
	strcat(TempScript, "TIMEOUT 90\r\n");
	strcat(TempScript, "MODE ARQ\r\n");
	strcat(TempScript, "TUNING 100\r\n");

	strcat(TempScript, TNC->InitScript);

	free(TNC->InitScript);
	TNC->InitScript = TempScript;

	// Set MYCALL


//	strcat(TNC->InitScript,"FECRCV True\r\n");

	sprintf(Msg, "MYCALL %s\r\nCODEC TRUE\r\nMYCALL\r\n", TNC->NodeCall);
	strcat(TNC->InitScript, Msg);

	strcat(TNC->InitScript,"PROCESSID\r\n");

	strcpy(TNC->CurrentMYC, TNC->NodeCall);

	if (TNC->destaddr.sin_family == 0)
	{
		// not defined in config file, so use localhost and port from IOBASE

		TNC->destaddr.sin_family = AF_INET;
		TNC->destaddr.sin_port = htons(PortEntry->PORTCONTROL.IOBASE);
		TNC->Datadestaddr.sin_family = AF_INET;
		TNC->Datadestaddr.sin_port = htons(PortEntry->PORTCONTROL.IOBASE+1);

		TNC->HostName=malloc(10);

		if (TNC->HostName != NULL) 
			strcpy(TNC->HostName,"127.0.0.1");

	}


	PortEntry->PORTCONTROL.TNC = TNC;

	TNC->WebWindowProc = WebProc;
	TNC->WebWinX = 520;
	TNC->WebWinY = 500;
	TNC->WebBuffer = zalloc(5000);

	TNC->WEB_COMMSSTATE = zalloc(100);
	TNC->WEB_TNCSTATE = zalloc(100);
	TNC->WEB_CHANSTATE = zalloc(100);
	TNC->WEB_BUFFERS = zalloc(100);
	TNC->WEB_PROTOSTATE = zalloc(100);
	TNC->WEB_RESTARTTIME = zalloc(100);
	TNC->WEB_RESTARTS = zalloc(100);

	TNC->WEB_MODE = zalloc(20);
	TNC->WEB_TRAFFIC = zalloc(100);



#ifndef LINBPQ

	CreatePactorWindow(TNC, ClassName, WindowTitle, RigControlRow, PacWndProc, 450, 500, ForcedClose);

	CreateWindowEx(0, "STATIC", "Comms State", WS_CHILD | WS_VISIBLE, 10,6,120,20, TNC->hDlg, NULL, hInstance, NULL);
	TNC->xIDC_COMMSSTATE = CreateWindowEx(0, "STATIC", "", WS_CHILD | WS_VISIBLE, 116,6,386,20, TNC->hDlg, NULL, hInstance, NULL);
	
	CreateWindowEx(0, "STATIC", "TNC State", WS_CHILD | WS_VISIBLE, 10,28,106,20, TNC->hDlg, NULL, hInstance, NULL);
	TNC->xIDC_TNCSTATE = CreateWindowEx(0, "STATIC", "", WS_CHILD | WS_VISIBLE, 116,28,520,20, TNC->hDlg, NULL, hInstance, NULL);

	CreateWindowEx(0, "STATIC", "Mode", WS_CHILD | WS_VISIBLE, 10,50,80,20, TNC->hDlg, NULL, hInstance, NULL);
	TNC->xIDC_MODE = CreateWindowEx(0, "STATIC", "", WS_CHILD | WS_VISIBLE, 116,50,200,20, TNC->hDlg, NULL, hInstance, NULL);
 
	CreateWindowEx(0, "STATIC", "Channel State", WS_CHILD | WS_VISIBLE, 10,72,110,20, TNC->hDlg, NULL, hInstance, NULL);
	TNC->xIDC_CHANSTATE = CreateWindowEx(0, "STATIC", "", WS_CHILD | WS_VISIBLE, 116,72,144,20, TNC->hDlg, NULL, hInstance, NULL);
 
	CreateWindowEx(0, "STATIC", "Traffic", WS_CHILD | WS_VISIBLE,10,94,80,20, TNC->hDlg, NULL, hInstance, NULL);
	TNC->xIDC_TRAFFIC = CreateWindowEx(0, "STATIC", "0 0 0 0", WS_CHILD | WS_VISIBLE,116,94,374,20 , TNC->hDlg, NULL, hInstance, NULL);

	CreateWindowEx(0, "STATIC", "TNC Restarts", WS_CHILD | WS_VISIBLE,10,116,100,20, TNC->hDlg, NULL, hInstance, NULL);
	TNC->xIDC_RESTARTS = CreateWindowEx(0, "STATIC", "0", WS_CHILD | WS_VISIBLE,116,116,40,20 , TNC->hDlg, NULL, hInstance, NULL);
	CreateWindowEx(0, "STATIC", "Last Restart", WS_CHILD | WS_VISIBLE,140,116,100,20, TNC->hDlg, NULL, hInstance, NULL);
	TNC->xIDC_RESTARTTIME = CreateWindowEx(0, "STATIC", "Never", WS_CHILD | WS_VISIBLE,250,116,200,20, TNC->hDlg, NULL, hInstance, NULL);

	TNC->hMonitor= CreateWindowEx(0, "LISTBOX", "", WS_CHILD |  WS_VISIBLE  | LBS_NOINTEGRALHEIGHT | 
            LBS_DISABLENOSCROLL | WS_HSCROLL | WS_VSCROLL,
			0,138,250,300, TNC->hDlg, NULL, hInstance, NULL);


	TNC->ClientHeight = 450;
	TNC->ClientWidth = 500;

	TNC->hMenu = CreatePopupMenu();

	AppendMenu(TNC->hMenu, MF_STRING, WINMOR_KILL, "Kill V4 TNC");
	AppendMenu(TNC->hMenu, MF_STRING, WINMOR_RESTART, "Kill and Restart V4 TNC");
//	AppendMenu(TNC->hPopMenu, MF_STRING, WINMOR_RESTARTAFTERFAILURE, "Restart TNC after each Connection");
//	CheckMenuItem(TNC->hPopMenu, WINMOR_RESTARTAFTERFAILURE, (TNC->RestartAfterFailure) ? MF_CHECKED : MF_UNCHECKED);
	AppendMenu(TNC->hMenu, MF_STRING, ARDOP_ABORT, "Abort Current Session");

	
	MoveWindows(TNC);
#endif
	i=sprintf(Msg,"V4 Host %s %d\n", TNC->HostName, htons(TNC->destaddr.sin_port));
	WritetoConsole(Msg);

	strcpy(TNC->WEB_MODE, "ARQ");
	MySetWindowText(TNC->xIDC_MODE, TNC->WEB_MODE);
	ConnecttoWINMOR(port);

	time(&TNC->lasttime);			// Get initial time value

	return ExtProc;
}

#ifndef LINBPQ

static BOOL CALLBACK EnumTNCWindowsProc(HWND hwnd, LPARAM  lParam)
{
	char wtext[100];
	struct TNCINFO * TNC = (struct TNCINFO *)lParam; 
	UINT ProcessId;

	GetWindowText(hwnd,wtext,99);

	if (memcmp(wtext,"Registration", 12) == 0)
	{
		SendMessage(hwnd, WM_CLOSE, 0, 0);
		return TRUE;
	}
	if (memcmp(wtext,"V4 Sound Card TNC", 17) == 0)
	{
		GetWindowThreadProcessId(hwnd, &ProcessId);

		if (TNC->PID == ProcessId)
		{
			 // Our Process

			sprintf (wtext, "V4 Sound Card TNC - BPQ %s", TNC->PortRecord->PORTCONTROL.PORTDESCRIPTION);
			MySetWindowText(hwnd, wtext);
	//		return FALSE;
		}
	}
	
	return (TRUE);
}
#endif

static VOID ProcessResponse(struct TNCINFO * TNC, UCHAR * Buffer, int MsgLen)
{
	// Response on WINMOR control channel. Could be a reply to a command, or
	// an Async  Response

	PMSGWITHLEN buffptr;
	char Status[80];
	struct STREAMINFO * STREAM = &TNC->Streams[0];

	if (_memicmp(Buffer, "FAULT failure to Restart Sound card", 20) == 0)
	{
		// Force a restart

			send(TNC->TCPSock, "CODEC FALSE\r\n", 13, 0);
			send(TNC->TCPSock, "CODEC TRUE\r\n", 12, 0);
	}
	else
	{
		TNC->TimeSinceLast = 0;
	}

	Buffer[MsgLen - 2] = 0;			// Remove CRLF

	if (_memicmp(Buffer, "PTT T", 5) == 0)
	{
		TNC->Busy |= PTTBusy;
		if (TNC->PTTMode)
			Rig_PTT(TNC, TRUE);
		return;
	}
	if (_memicmp(Buffer, "PTT F", 5) == 0)
	{
		TNC->Busy &= ~PTTBusy;
		if (TNC->PTTMode)
			Rig_PTT(TNC, FALSE);
		return;
	}

	if (_memicmp(Buffer, "BUSY TRUE", 9) == 0)
	{	
		TNC->Busy |= CDBusy;
		MySetWindowText(TNC->xIDC_CHANSTATE, "Busy");
		strcpy(TNC->WEB_CHANSTATE, "Busy");

		return;
	}

	if (_memicmp(Buffer, "BUSY FALSE", 10) == 0)
	{
		TNC->Busy &= ~CDBusy;
		MySetWindowText(TNC->xIDC_CHANSTATE, "Clear");
		strcpy(TNC->WEB_CHANSTATE, "Clear");
		return;
	}

	if (_memicmp(Buffer, "OFFSET", 6) == 0)
	{
//		WritetoTrace(TNC, Buffer, MsgLen - 2);
//		memcpy(TNC->TargetCall, &Buffer[7], 10);
		return;
	}

	if (_memicmp(Buffer, "CONNECTED", 9) == 0)
	{
		char Call[11];
		char * ptr;
		char * ApplPtr = APPLS;
		APPLCALLS * APPL;
		int App;
		char Appl[10];

		WritetoTrace(TNC, Buffer, MsgLen - 2);

		STREAM->ConnectTime = time(NULL); 

		memcpy(Call, &Buffer[10], 10);

		ptr = strchr(Call, ' ');	
		if (ptr) *ptr = 0;

		TNC->HadConnect = TRUE;

		if (TNC->PortRecord->ATTACHEDSESSIONS[0] == 0)
		{
			// Incomming Connect

			// Stop other ports in same group

			SuspendOtherPorts(TNC);

			ProcessIncommingConnect(TNC, Call, 0, TRUE);
			TNC->Streams[0].ARQENDSent = FALSE;

			if (TNC->RIG)
				sprintf(Status, "%s Connected to %s Inbound Freq %s", TNC->Streams[0].RemoteCall, TNC->TargetCall, TNC->RIG->Valchar);
			else
				sprintf(Status, "%s Connected to %s Inbound", TNC->Streams[0].RemoteCall, TNC->TargetCall);

			MySetWindowText(TNC->xIDC_TNCSTATE, Status);
			strcpy(TNC->WEB_TNCSTATE, Status);

			// See which application the connect is for

			for (App = 0; App < 32; App++)
			{
				APPL=&APPLCALLTABLE[App];
				memcpy(Appl, APPL->APPLCALL_TEXT, 10);
				ptr=strchr(Appl, ' ');

				if (ptr)
					*ptr = 0;
	
				if (_stricmp(TNC->CurrentMYC, Appl) == 0)
					break;
			}

			if (App < 32)
			{
				char AppName[13];

				memcpy(AppName, &ApplPtr[App * sizeof(struct CMDX)], 12);
				AppName[12] = 0;

				// Make sure app is available

				if (CheckAppl(TNC, AppName))
				{
					MsgLen = sprintf(Buffer, "%s\r", AppName);
	
					GetSemaphore(&Semaphore, 50);			

					buffptr = GetBuff();

					if (buffptr == 0)
					{
						FreeSemaphore(&Semaphore);
						return;			// No buffers, so ignore
					}

					buffptr->Len = MsgLen;
					memcpy(buffptr+2, Buffer, MsgLen);

					C_Q_ADD(&TNC->WINMORtoBPQ_Q, buffptr);
					
					FreeSemaphore(&Semaphore);
					
					TNC->SwallowSignon = TRUE;
				}
				else
				{
					char Msg[] = "Application not available\r\n";
					
					// Send a Message, then a disconenct
					
					send(TNC->TCPDataSock, Msg, (int)strlen(Msg), 0);
					STREAM->NeedDisc = 100;	// 10 secs
				}
			}

			return;
		}
		else
		{
			// Connect Complete

			char Reply[80];
			int ReplyLen;
			
			buffptr = GetBuff();

			if (buffptr == 0) return;			// No buffers, so ignore

			ReplyLen = sprintf(Reply, "*** Connected to %s\r", &Buffer[10]);

			buffptr->Len = ReplyLen;
			memcpy(buffptr+2, Reply, ReplyLen);

			C_Q_ADD(&TNC->WINMORtoBPQ_Q, buffptr);

			TNC->Streams[0].Connecting = FALSE;
			TNC->Streams[0].Connected = TRUE;			// Subsequent data to data channel

			if (TNC->RIG)
				sprintf(Status, "%s Connected to %s Outbound Freq %s",  TNC->Streams[0].MyCall, TNC->Streams[0].RemoteCall, TNC->RIG->Valchar);
			else
				sprintf(Status, "%s Connected to %s Outbound", TNC->Streams[0].MyCall, TNC->Streams[0].RemoteCall);

			MySetWindowText(TNC->xIDC_TNCSTATE, Status);
			strcpy(TNC->WEB_TNCSTATE, Status);

			UpdateMH(TNC, Call, '+', 'O');

			return;
		}
	}

	if (_memicmp(Buffer, "DISCONNECTED", 12) == 0)
	{
		if (TNC->FECMode)
			return;

		if (TNC->StartSent)
		{
			TNC->StartSent = FALSE;		// Disconnect reported following start codec
			return;
		}

		if (TNC->Streams[0].Connecting)
		{
			// Report Connect Failed, and drop back to command mode

			TNC->Streams[0].Connecting = FALSE;
			buffptr = GetBuff();

			if (buffptr == 0) return;			// No buffers, so ignore

			buffptr->Len = sprintf(buffptr->Data, "V4} Failure with %s\r", TNC->Streams[0].RemoteCall);

			C_Q_ADD(&TNC->WINMORtoBPQ_Q, buffptr);

			sprintf(Status, "In Use by %s", TNC->Streams[0].MyCall);
			MySetWindowText(TNC->xIDC_TNCSTATE, Status);
			strcpy(TNC->WEB_TNCSTATE, Status);

			return;
		}

		WritetoTrace(TNC, Buffer, MsgLen - 2);

		// Release Session

		TNC->Streams[0].Connecting = FALSE;
		TNC->Streams[0].Connected = FALSE;		// Back to Command Mode
		TNC->Streams[0].ReportDISC = TRUE;		// Tell Node

		if (TNC->Streams[0].Disconnecting)		// 
			ReleaseTNC(TNC);

		TNC->Streams[0].Disconnecting = FALSE;

		return;
	}
		
	if (_memicmp(Buffer, "CMD", 3) == 0)
	{
		return;
	}

	if (_memicmp(Buffer, "PENDING", 6) == 0)
		return;

/*

	if (_memicmp(Buffer, "FAULT Not connected!", 20) == 0)
	{
		// If in response to ARQEND, assume Disconnected was missed

		if (TNC->Streams[0].Disconnecting) 
		{
			TNC->Streams[0].Connecting = FALSE;
			TNC->Streams[0].Connected = FALSE;		// Back to Command Mode
			TNC->Streams[0].ReportDISC = TRUE;		// Tell Node

			ReleaseTNC(TNC);
		
			TNC->Streams[0].Disconnecting = FALSE;
		}
	}
*/
	if (_memicmp(Buffer, "FAULT", 5) == 0)
	{
		WritetoTrace(TNC, Buffer, MsgLen - 2);
		return;
	}

	if (_memicmp(Buffer, "BUFFER", 6) == 0)
	{
		sscanf(&Buffer[7], "%d", &TNC->Streams[0].BytesOutstanding);

		if (TNC->Streams[0].BytesOutstanding == 0)
		{
			// all sent
			
			if (TNC->Streams[0].Disconnecting)						// Disconnect when all sent
			{
				if (TNC->Streams[0].ARQENDSent == FALSE)
				{
					send(TNC->TCPSock,"ARQEND\r\n", 8, 0);
					TNC->Streams[0].ARQENDSent = TRUE;
				}
			}
		}
		else
		{
			// Make sure Node Keepalive doesn't kill session.

			TRANSPORTENTRY * SESS = TNC->PortRecord->ATTACHEDSESSIONS[0];

			if (SESS)
			{
				SESS->L4KILLTIMER = 0;
				SESS = SESS->L4CROSSLINK;
				if (SESS)
					SESS->L4KILLTIMER = 0;
			}
		}

		MySetWindowText(TNC->xIDC_TRAFFIC, &Buffer[7]);
		strcpy(TNC->WEB_TRAFFIC, &Buffer[7]);

		return;
	}

	if (_memicmp(Buffer, "PROCESSID", 9) == 0)
	{
		HANDLE hProc;
		char ExeName[256] = "";

		TNC->PID = atoi(&Buffer[10]);

		// Get the File Name in case we want to restart it.

		if (GetModuleFileNameExPtr)
		{
			hProc =  OpenProcess(PROCESS_QUERY_INFORMATION |PROCESS_VM_READ, FALSE, TNC->PID);
	
			if (hProc)
			{
				GetModuleFileNameExPtr(hProc, 0,  ExeName, 255);
				CloseHandle(hProc);

				if (TNC->ProgramPath)
					free(TNC->ProgramPath);

				TNC->ProgramPath = _strdup(ExeName);
			}
		}

		// Set Window Title to reflect BPQ Port Description

#ifndef LINBPQ
		EnumWindows(EnumTNCWindowsProc, (LPARAM)TNC);
#endif
	}

	if (_memicmp(Buffer, "PLAYBACKDEVICES", 15) == 0)
	{
		TNC->PlaybackDevices = _strdup(&Buffer[16]);
	}
	// Others should be responses to commands

	if (_memicmp(Buffer, "BLOCKED", 6) == 0)
	{
		WritetoTrace(TNC, Buffer, MsgLen - 2);
		return;
	}

	if (_memicmp(Buffer, "CONREQ", 6) == 0)
	{
		// if to one of our APPLCALLS, change TNC MYCALL

		APPLCALLS * APPL;
		char Appl[11];
		char Target[20];
		char * ptr;
		int i;

		memcpy(Target, &Buffer[7], 12);
		ptr = memchr(Target, ' ', 12);
		if (ptr)
			*ptr = 0;

		if (strcmp(Target, TNC->NodeCall) == 0)
			ChangeMYC(TNC, Target);
		else
		{
			for (i = 0; i < 32; i++)
			{
				APPL=&APPLCALLTABLE[i];

				if (APPL->APPLCALL_TEXT[0] > ' ')
				{
					memcpy(Appl, APPL->APPLCALL_TEXT, 10);
					ptr=strchr(Appl, ' ');

					if (ptr)
						*ptr = 0;
	
					if (strcmp(Appl, Target) == 0)
					{
						ChangeMYC(TNC, Target);
						break;
					}
				}
			}
		}
		WritetoTrace(TNC, Buffer, MsgLen - 2);

		// Update MH

		ptr = strstr(Buffer, " de ");
		if (ptr)
			UpdateMH(TNC, ptr + 4, '!', 'O');
	}

	buffptr = GetBuff();

	if (buffptr == 0) return;			// No buffers, so ignore

	buffptr->Len = sprintf(buffptr->Data, "V4} %s\r", Buffer);

	C_Q_ADD(&TNC->WINMORtoBPQ_Q, buffptr);
			
}

int V4ProcessReceivedData(struct TNCINFO * TNC)
{
	char ErrMsg[255];

	int InputLen, MsgLen;
	char * ptr, * ptr2;
	char Buffer[2000];

	// May have several messages per packet, or message split over packets

	if (TNC->InputLen > 1000)	// Shouldnt have lines longer  than this on command connection
		TNC->InputLen=0;
				
	InputLen=recv(TNC->TCPSock, &TNC->TCPBuffer[TNC->InputLen], 1000 - TNC->InputLen, 0);

	if (InputLen == 0 || InputLen == SOCKET_ERROR)
	{
		// Does this mean closed?
		
		if (!TNC->CONNECTING)
		{
			sprintf(ErrMsg, "V4TNC Connection lost for BPQ Port %d\r\n", TNC->Port);
			WritetoConsole(ErrMsg);
		}
		TNC->CONNECTING = FALSE;
		TNC->CONNECTED = FALSE;
		TNC->Streams[0].ReportDISC = TRUE;

		return 0;					
	}

	TNC->InputLen += InputLen;

loop:
	
	ptr = memchr(TNC->TCPBuffer, '\n', TNC->InputLen);

	if (ptr)	//  CR in buffer
	{
		ptr2 = &TNC->TCPBuffer[TNC->InputLen];
		ptr++;				// Assume LF Follows CR

		if (ptr == ptr2)
		{
			// Usual Case - single meg in buffer
	
			ProcessResponse(TNC, TNC->TCPBuffer, TNC->InputLen);
			TNC->InputLen=0;
		}
		else
		{
			// buffer contains more that 1 message

			MsgLen = TNC->InputLen - (int)(ptr2 - ptr);

			memcpy(Buffer, TNC->TCPBuffer, MsgLen);

			ProcessResponse(TNC, Buffer, MsgLen);

			memmove(TNC->TCPBuffer, ptr, TNC->InputLen-MsgLen);

			TNC->InputLen -= MsgLen;
			goto loop;
		}
	}
	return 0;
}

/*
INT_PTR CALLBACK ConfigDialogProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
	int Cmd = LOWORD(wParam);

	switch (message)
	{
	case WM_INITDIALOG:
	{
		struct TNCINFO * TNC = (struct TNCINFO * )lParam;
		char * ptr1, *ptr2;
		int ptr3 = 0;
		char Line[1000];
		int len;

		ptr1 = TNC->CaptureDevices;

		if (!ptr1)
			return 0;				// No Devices


		while (ptr2 = strchr(ptr1, ','))
		{
			len = ptr2 - ptr1;
			memcpy(&Line[ptr3], ptr1, len);
			ptr3 += len;
			Line[ptr3++] = '\r';
			Line[ptr3++] = '\n';

			ptr1 = ++ptr2;
		}
		Line[ptr3] = 0;
		strcat(Line, ptr1);
	
		SetDlgItemText(hDlg, IDC_CAPTURE, Line);

		ptr3 = 0;

		ptr1 = TNC->PlaybackDevices;
	
		if (!ptr1)
			return 0;				// No Devices


		while (ptr2 = strchr(ptr1, ','))
		{
			len = ptr2 - ptr1;
			memcpy(&Line[ptr3], ptr1, len);
			ptr3 += len;
			Line[ptr3++] = '\r';
			Line[ptr3++] = '\n';

			ptr1 = ++ptr2;
		}
		Line[ptr3] = 0;
		strcat(Line, ptr1);
	
		SetDlgItemText(hDlg, IDC_PLAYBACK, Line);

		SendDlgItemMessage(hDlg, IDC_PLAYBACK, EM_SETSEL, -1, 0);

//		KillTNC(TNC);

		return TRUE; 
	}

	case WM_SIZING:
	{
		return TRUE;
	}

	case WM_ACTIVATE:

//		SendDlgItemMessage(hDlg, IDC_MESSAGE, EM_SETSEL, -1, 0);

		break;


	case WM_COMMAND:


		if (Cmd == IDCANCEL)
		{
			EndDialog(hDlg, LOWORD(wParam));
			return (INT_PTR)TRUE;
		}

		return (INT_PTR)TRUE;

		break;
	}
	return (INT_PTR)FALSE;
}
*/
static VOID TidyClose(struct TNCINFO * TNC, int Stream)
{
	// If all acked, send disc
	
	if (TNC->Streams[0].BytesOutstanding == 0)
	{
		send(TNC->TCPSock,"ARQEND\r\n", 8, 0);
		TNC->Streams[0].ARQENDSent = TRUE;
	}
}

static VOID ForcedClose(struct TNCINFO * TNC, int Stream)
{
	send(TNC->TCPSock,"ABORT\r\n", 7, 0);
}

VOID CloseComplete(struct TNCINFO * TNC, int Stream)
{
	ReleaseTNC(TNC);

	ChangeMYC(TNC, TNC->NodeCall);		// In case changed to an applcall

	if (TNC->FECMode)
	{
		TNC->FECMode = FALSE;
		send(TNC->TCPSock,"MODE ARQ\r\n", 10, 0);
		strcpy(TNC->WEB_MODE, "ARQ");
		MySetWindowText(TNC->xIDC_MODE, TNC->WEB_MODE);
	}
}