Category : Network Files
Archive   : SAP.ZIP
Filename : COMM.H

/*****************************************************************************
*
* Program Name: COMMUNICATION_DEFINITIONS
*
* Filename: comm.h
*
* Date Created: March 22, 1988
*
* Version: 1.0
*
* Programmers: Bryan Sparks
*
* Comments: This file defines (typedef) structures needed to perform
* IPX and SAP (SPX definitions are included also).
*
****************************************************************************/
struct IPXAddress
{
unsigned char Network[4]; /* high-low */
unsigned char Node[6]; /* high-low */
unsigned int Socket; /* high-low */
};

typedef struct IPXPacketStructure
{
unsigned int PacketCheckSum; /* high-low */
unsigned int PacketLength; /* high-low */
unsigned char PacketTransportControl;
unsigned char PacketType;
struct IPXAddress Destination;
struct IPXAddress Source;
} IPXPacket;

typedef struct SPXPacketStructure
{
unsigned int PacketCheckSum; /* high-low */
unsigned int PacketLength; /* high-low */
unsigned char PacketTransportControl;
unsigned char PacketType;
struct IPXAddress Destination;
struct IPXAddress Source;
unsigned char ConnectionControl;
unsigned char DatastreamType;
unsigned int SourceConnectionID; /* high-low */
unsigned int DestinationConnectionID; /* high-low */
unsigned int SequenceNumber; /* high-low */
unsigned int AcknowledgeNumber; /* high-low */
unsigned int AllocationNumber; /* high-low */
} SPXPacket;

struct ECBFragment
{
char far *Address;
unsigned int Size; /* low-high */
};

typedef struct ECBStructure
{
unsigned int Link[2];
char far *ESRAddress; /* offset-segment */
unsigned char InUseFlag;
unsigned char CompletionCode;
unsigned int ECBSocket; /* high-low */
unsigned char IPXWorkspace[4];
unsigned char DriverWorkspace[12];
unsigned char ImmediateAddress[6]; /* high-low */
unsigned int FragmentCount; /* low-high */
struct ECBFragment FragmentDescriptor[2];
} ECB;

typedef struct SAPDataStructure
{
unsigned int InfoType;
unsigned int ServerType;
unsigned char ServerName[48];
struct IPXAddress Address;
unsigned int IntermediateNetworks;
} SAPData;