GLOBALS.H
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
// PARTICULAR PURPOSE.
//
// Copyright 1993 - 1998 Microsoft Corporation. All Rights Reserved.
//
// PURPOSE:
// Contains declarations for all globally scoped names in the program.
//
#include <nspapi.h>
#include <wsipx.h>
//-------------------------------------------------------------------------
// Product identifier string defines
#define APPNAME GlobChat
//-------------------------------------------------------------------------
// Functions for handling main window messages. The message-dispatching
// mechanism expects all message-handling functions to have the following
// prototype:
//
// LRESULT FunctionName(HWND, UINT, WPARAM, LPARAM);
LRESULT MsgCreate(HWND, UINT, WPARAM, LPARAM);
LRESULT MsgSize(HWND, UINT, WPARAM, LPARAM);
LRESULT MsgTimer(HWND, UINT, WPARAM, LPARAM);
LRESULT MsgCommand(HWND, UINT, WPARAM, LPARAM);
LRESULT MsgDestroy(HWND, UINT, WPARAM, LPARAM);
LRESULT MsgConnected(HWND, UINT, WPARAM, LPARAM);
LRESULT MsgDataready(HWND, UINT, WPARAM, LPARAM);
//-------------------------------------------------------------------------
// Functions for handling main window commands--ie. functions for
// processing WM_COMMAND messages based on the wParam value.
// The message-dispatching mechanism expects all command-handling
// functions to have the following prototype:
//
// LRESULT FunctionName(HWND, WORD, WORD, HWND);
LRESULT CmdExit(HWND, WORD, WORD, HWND);
LRESULT CmdAbout(HWND, WORD, WORD, HWND);
//-------------------------------------------------------------------------
// Globchat socket message definitions
//
typedef struct _MSGHDR // Message header
{
BYTE signature; // Identifies start of a message
WORD length; // size of message
BYTE command; // message command
} MSGHDR, *LPMSGHDR;
typedef struct _DATAMSG // Message = message header + data
{
MSGHDR hdr;
BYTE data[0x8000]; // data
} DATAMSG, *LPDATAMSG;
DATAMSG xferbuf;
#define HDRSIZE sizeof(MSGHDR) // Message header size
#define REALLEN(x) lstrlen(x) + 1 // REALLEN will now count terminating NULL of x
//-------------------------------------------------------------------------
// My personal SOCKDATA structure for storing info on my sockets
typedef struct _SOCKDATA
{
SOCKET sock; // socket handle
int status; // Socket's status
struct sockaddr addr; // Address structure
char reserved[10]; // Generic sockaddr struct is not big enough for all
// addresses (namely netbios addresses) so adding some
// space at the end.
int addrlen; // Address length
int type; // Socket type (from socket() call)
int protocol; // protocol (from socket() call)
int currconnects; // Number of current connections on this socket
LPTSTR lpProtocolName; // Pointer to protocol name socket is running on
int servsockindex; // Index to array of server sockets
SOCKET peer; // Associated peer socket which this socket is in session with
char name[16]; // User name
} SOCKDATA, *LPSOCKDATA;
LPSOCKDATA ServerSockets; // Listening (server) sockets
LPSOCKDATA ConnectedSockets; // Accepted (client) sockets
// SOCKDATA structure status options
#define SOCKSTAT_INIT 1
#define SOCKSTAT_LISTENING 2
#define SOCKSTAT_ACCEPTING 3
#define SOCKSTAT_CLOSED 4
#define SOCKSTAT_CONNECTED 5
#define SOCKSTAT_AVAILABLE 6
#define SOCKSTAT_INSESSION 7
#define SOCKSTAT_REQSESSION 8
//-------------------------------------------------------------------------
// Global function prototypes.
BOOL InitApplication(HINSTANCE, int);
BOOL CenterWindow(HWND, HWND);
void AtoH(char *, char *, int);
unsigned char BtoH(char);
void deregistername(char *);
BOOL senddatamessage(SOCKET, LPDATAMSG);
BOOL recvdatamessage (LPSOCKDATA, LPDATAMSG);
void UpdateClientList(char *, int, char *);
BOOL MakeServSock(HWND, LPSOCKDATA, LPPROTOCOL_INFO);
LPTSTR GetStringRes (int id);
// Callback functions. These are called by Windows.
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
//-------------------------------------------------------------------------
// Command ID definitions. These definitions are used to associate menu
// items with commands.
// File menu
#define IDM_EXIT 1000
// Help menu
#define IDM_ABOUT 1100
// Status List boxes
#define ID_PROTOCOLBOX 400
#define ID_CLIENTBOX 401
//-------------------------------------------------------------------------
// String Table ID definitions.
#define IDS_APPNAME 1
#define IDS_DESCRIPTION 2
#define IDS_AVAILABLE 3
#define IDS_SESSION 4
#define IDS_SESSION_SETUP 5
#define IDS_LANGVERINFO 6
//-------------------------------------------------------------------------
// About dialog defines.
#define IDD_VERFIRST 100
#define IDD_VERLAST 104
//-------------------------------------------------------------------------
// Application Specific Messages.
#define MW_CONNECTED 200
#define MW_DATAREADY 201
#define SAPTIMER 300
//--------------------------------------------------------------------------
// Other constants
#define NWCHATID 0x5607 // 0x0756 (network order) was assigned by Novell
// for this specific application
#define DNSCHATID 0x555 // TCP well known port
// Globchat socket message commands
#define REGISTER_NAME 1
#define XFER_DATA 2
#define REQUEST_SESSION 3
#define SESSION_REQUEST_RESPONSE 4
#define SESSION_CLOSE 5
#define DEREGISTER_NAME 6
#define MYSIGNATURE 0xCC // First byte in every message header
//-------------------------------------------------------------------------
// Global variable declarations.
extern HINSTANCE hInst; // The current instance handle
extern char szAppName[]; // The name of this application
extern char szTitle[]; // The title bar text
HANDLE ConnectHeap;
LPPROTOCOL_INFO lpProtBuf;
SOCKET SAPSocket;
SOCKADDR_IPX SAPSockAddr, SAPDestSockAddr;
int NextFree, MaxConnects;
char aliasbuf[512];
int sizealiasbuf;
HWND hwndProtocolList;
HWND hwndClientList;
#define hwndMDIClient NULL
//-------------------------------------------------------------------------
// Message and command dispatch infrastructure. The following type
// definitions and functions are used by the message and command dispatching
// mechanism and do not need to be changed.
// Function pointer prototype for message handling functions.
typedef LRESULT (*PFNMSG)(HWND,UINT,WPARAM,LPARAM);
// Function pointer prototype for command handling functions.
typedef LRESULT (*PFNCMD)(HWND,WORD,WORD,HWND);
// Enumerated type used to determine which default window procedure
// should be called by the message- and command-dispatching mechanism
// if a message or command is not handled explicitly.
typedef enum
{
edwpNone, // Do not call any default procedure.
edwpWindow, // Call DefWindowProc.
edwpDialog, // Call DefDlgProc (This should be used only for
// custom dialogs - standard dialog use edwpNone).
edwpMDIChild, // Call DefMDIChildProc.
edwpMDIFrame // Call DefFrameProc.
} EDWP; // Enumeration for Default Window Procedures
// This structure maps messages to message handling functions.
typedef struct _MSD
{
UINT uMessage;
PFNMSG pfnmsg;
} MSD; // MeSsage Dispatch structure
// This structure contains all of the information that a window
// procedure passes to DispMessage in order to define the message
// dispatching behavior for the window.
typedef struct _MSDI
{
int cmsd; // Number of message dispatch structs in rgmsd
MSD *rgmsd; // Table of message dispatch structures
EDWP edwp; // Type of default window handler needed.
} MSDI, FAR *LPMSDI; // MeSsage Dipatch Information
// This structure maps command IDs to command handling functions.
typedef struct _CMD
{
WORD wCommand;
PFNCMD pfncmd;
} CMD; // CoMmand Dispatch structure
// This structure contains all of the information that a command
// message procedure passes to DispCommand in order to define the
// command dispatching behavior for the window.
typedef struct _CMDI
{
int ccmd; // Number of command dispatch structs in rgcmd
CMD *rgcmd; // Table of command dispatch structures
EDWP edwp; // Type of default window handler needed.
} CMDI, FAR *LPCMDI; // CoMmand Dispatch Information
// Message and command dispatching functions. They look up messages
// and commands in the dispatch tables and call the appropriate handler
// function.
LRESULT DispMessage(LPMSDI, HWND, UINT, WPARAM, LPARAM);
LRESULT DispCommand(LPCMDI, HWND, WPARAM, LPARAM);
// Message dispatch information for the main window
extern MSDI msdiMain;
// Command dispatch information for the main window
extern CMDI cmdiMain;
//-------------------------------------------------------------------------
// Version string definitions--Leave these alone.
#define SZRCOMPANYNAME "CompanyName"
#define SZRDESCRIPTION "FileDescription"
#define SZRVERSION "FileVersion"
#define SZRAPPNAME "InternalName"
#define SZRCOPYRIGHT "LegalCopyright"
#define SZRTRADEMARK "LegalTrademarks"
#define SZRPRODNAME "ProductName"
#define SZRPRODVER "ProuctVersion"
//-------------------------------------------------------------------------
// SAP structure definition for a single entry SAP packet.
typedef struct _SAPHDR
{
WORD operation; // 1 = Req., 2 = Resp., 3 = Get Nearest Req, 4 = Get Nearest Resp.
WORD servicetype; // kind of service
char name[48]; // Name of Server
char network[4]; // network number
char node[6]; // node number
char socket[2]; // socket number
WORD hops; // Number of hops to server
} SAPHDR, *LPSAPHDR; // SAP structure, pointer to SAP structure
SAPHDR SAPData;