#define TRUE -1
#define FALSE 0

typedef unsigned char BYTE;
typedef unsigned int WORD;
typedef unsigned long DWORD;

struct packet_SPX {
	WORD Checksum;
	WORD Length;
	BYTE TransportControl;
	BYTE PacketType;
	BYTE DestinationNetwork[4];
	BYTE DestinationNode[6];
	WORD DestinationSocket;
	BYTE SourceNetwork[4];
	BYTE SourceNode[6];
	WORD SourceSocket;
	BYTE ConnectionControl;
	BYTE DatastreamType;
	WORD SourceConnectionID;
	WORD DestinationConntectionID;
	WORD SequenceNumber;
	WORD AckNumber;
	WORD AllocationNumber;
	BYTE Data[534];
};

struct packet_IPX {
	WORD Checksum;
	WORD Length;
	BYTE TransportControl;
	BYTE PacketType;
	BYTE DestinationNetwork[4];
	BYTE DestinationNode[6];
	WORD DestinationSocket;
	BYTE SourceNetwork[4];
	BYTE SourceNode[6];
	WORD SourceSocket;
	struct packet_SPX Data;
};

struct frame_802_3 {
	BYTE preamble[7];
	BYTE StartFrameDelimeter[1];
	BYTE DestinationAddr[6];
	BYTE SourceAddr[6];
	WORD Length;
	struct packet_IPX Data; //contains pad and frame CRC check
};

struct NCP_reply{
	/*802.3 Header*/
	BYTE DestinationAddr[6];
	BYTE SourceAddr[6];
	WORD Length_802;

	/*IPX Header*/
	WORD Checksum;
	WORD Length_IPX;
	BYTE TransportControl;
	BYTE PacketType;
	BYTE DestinationNetwork[4];
	BYTE DestinationNode[6];
	WORD DestinationSocket;
	BYTE SourceNetwork[4];
	BYTE SourceNode[6];
	WORD SourceSocket;

	WORD ReplyType;
	BYTE SequenceNumber;
	BYTE ConnectionNumberLow;
	BYTE TaskNumber;
	BYTE ConnectionNumberHi;
	BYTE CompletionCode;
	BYTE ConnectionStatus;

	BYTE Data[1500];
};

struct NCP_request{

	/*802.3 Header*/
	BYTE DestinationAddr[6];
	BYTE SourceAddr[6];
	WORD Length_802;

	/*IPX Header*/
	WORD Checksum;
	WORD Length_IPX;
	BYTE TransportControl;
	BYTE PacketType;
	BYTE DestinationNetwork[4];
	BYTE DestinationNode[6];
	WORD DestinationSocket;
	BYTE SourceNetwork[4];
	BYTE SourceNode[6];
	WORD SourceSocket;

	/*NCP Header*/
	WORD RequestType;
	BYTE SequenceNumber;
	BYTE ConnectionNumberLow;
	BYTE TaskNumber;
	BYTE ConnectionNumberHi;

	BYTE Data[1500];
};

void Initialize();
void RegisterWithPKTDRV();
void EnterPromiscuousMode();
void WaitForStationRequestForLoginEXE();
void SendStationAlternateFile();
void ResynchSequenceNumbers();
void SendOpenReply();
void SendReadResponse();
void WaitForPacket();
int PacketIsStationsReadRequest();
void WaitForPacket();