230 lines
6.8 KiB
C++
230 lines
6.8 KiB
C++
//*********************************************************************
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//* Microsoft Windows **
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//* Copyright (c) 1994-1998 Microsoft Corporation
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//*********************************************************************
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//
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// HISTORY:
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//
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// 96/05/23 markdu Created.
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// 96/05/26 markdu Update config API.
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// 96/05/27 markdu Added lpIcfgGetLastInstallErrorText.
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// 96/05/27 markdu Use lpIcfgInstallInetComponents and lpIcfgNeedInetComponents.
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#include "wizard.h"
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// instance handle must be in per-instance data segment
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#pragma data_seg(DATASEG_PERINSTANCE)
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// Global variables
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HINSTANCE ghInstConfigDll=NULL; // handle to Config dll we load explicitly
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DWORD dwCfgRefCount=0;
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BOOL fCFGLoaded=FALSE; // TRUE if config function addresses have been loaded
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// global function pointers for Config apis
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GETSETUPXERRORTEXT lpGetSETUPXErrorText=NULL;
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ICFGSETINSTALLSOURCEPATH lpIcfgSetInstallSourcePath=NULL;
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ICFGINSTALLSYSCOMPONENTS lpIcfgInstallInetComponents=NULL;
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ICFGNEEDSYSCOMPONENTS lpIcfgNeedInetComponents=NULL;
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ICFGISGLOBALDNS lpIcfgIsGlobalDNS=NULL;
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ICFGREMOVEGLOBALDNS lpIcfgRemoveGlobalDNS=NULL;
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ICFGTURNOFFFILESHARING lpIcfgTurnOffFileSharing=NULL;
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ICFGISFILESHARINGTURNEDON lpIcfgIsFileSharingTurnedOn=NULL;
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ICFGGETLASTINSTALLERRORTEXT lpIcfgGetLastInstallErrorText=NULL;
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ICFGSTARTSERVICES lpIcfgStartServices=NULL;
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//
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// These two calls are only in NT icfg32.dll
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//
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ICFGNEEDMODEM lpIcfgNeedModem = NULL;
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ICFGINSTALLMODEM lpIcfgInstallModem = NULL;
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//////////////////////////////////////////////////////
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// Config api function names
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//////////////////////////////////////////////////////
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//static const CHAR szDoGenInstall[] = "DoGenInstall";
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static const CHAR szGetSETUPXErrorText[] = "GetSETUPXErrorText";
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static const CHAR szIcfgSetInstallSourcePath[] = "IcfgSetInstallSourcePath";
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static const CHAR szIcfgInstallInetComponents[] = "IcfgInstallInetComponents";
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static const CHAR szIcfgNeedInetComponents[] = "IcfgNeedInetComponents";
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static const CHAR szIcfgIsGlobalDNS[] = "IcfgIsGlobalDNS";
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static const CHAR szIcfgRemoveGlobalDNS[] = "IcfgRemoveGlobalDNS";
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static const CHAR szIcfgTurnOffFileSharing[] = "IcfgTurnOffFileSharing";
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static const CHAR szIcfgIsFileSharingTurnedOn[] = "IcfgIsFileSharingTurnedOn";
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static const CHAR szIcfgGetLastInstallErrorText[] = "IcfgGetLastInstallErrorText";
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static const CHAR szIcfgStartServices[] = "IcfgStartServices";
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//
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// Available only on NT icfg32.dll
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//
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static const CHAR szIcfgNeedModem[] = "IcfgNeedModem";
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static const CHAR szIcfgInstallModem[] = "IcfgInstallModem";
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// API table for function addresses to fetch
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#define NUM_CFGAPI_PROCS 12
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APIFCN ConfigApiList[NUM_CFGAPI_PROCS] =
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{
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{ (PVOID *) &lpGetSETUPXErrorText, szGetSETUPXErrorText},
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{ (PVOID *) &lpIcfgSetInstallSourcePath, szIcfgSetInstallSourcePath},
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{ (PVOID *) &lpIcfgInstallInetComponents, szIcfgInstallInetComponents},
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{ (PVOID *) &lpIcfgNeedInetComponents, szIcfgNeedInetComponents},
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{ (PVOID *) &lpIcfgIsGlobalDNS, szIcfgIsGlobalDNS},
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{ (PVOID *) &lpIcfgRemoveGlobalDNS, szIcfgRemoveGlobalDNS},
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{ (PVOID *) &lpIcfgTurnOffFileSharing, szIcfgTurnOffFileSharing},
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{ (PVOID *) &lpIcfgIsFileSharingTurnedOn, szIcfgIsFileSharingTurnedOn},
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{ (PVOID *) &lpIcfgGetLastInstallErrorText, szIcfgGetLastInstallErrorText},
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{ (PVOID *) &lpIcfgStartServices, szIcfgStartServices},
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//
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// These two calls are only in NT icfg32.dll
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//
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{ (PVOID *) &lpIcfgNeedModem, szIcfgNeedModem},
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{ (PVOID *) &lpIcfgInstallModem, szIcfgInstallModem}
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};
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#pragma data_seg(DATASEG_DEFAULT)
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extern BOOL GetApiProcAddresses(HMODULE hModDLL,APIFCN * pApiProcList,
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UINT nApiProcs);
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/*******************************************************************
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NAME: InitConfig
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SYNOPSIS: Loads the Config dll (ICFG32), gets proc addresses,
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EXIT: TRUE if successful, or FALSE if fails. Displays its
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own error message upon failure.
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********************************************************************/
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BOOL InitConfig(HWND hWnd)
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{
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UINT uiNumCfgApiProcs = 0;
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DEBUGMSG("icfgcall.c::InitConfig()");
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// only actually do init stuff on first call to this function
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// (when reference count is 0), just increase reference count
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// for subsequent calls
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if (dwCfgRefCount == 0) {
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CHAR szConfigDll[SMALL_BUF_LEN];
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DEBUGMSG("Loading Config DLL");
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// set an hourglass cursor
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WAITCURSOR WaitCursor;
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if (TRUE == IsNT())
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{
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//
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// On Windows NT get the filename (ICFGNT.DLL) out of resource
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//
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LoadSz(IDS_CONFIGNTDLL_FILENAME,szConfigDll,sizeof(szConfigDll));
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}
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else
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{
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//
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// On Windows 95 get the filename (ICFG95.DLL) out of resource
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//
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LoadSz(IDS_CONFIG95DLL_FILENAME,szConfigDll,sizeof(szConfigDll));
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}
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// load the Config api dll
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ghInstConfigDll = LoadLibrary(szConfigDll);
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if (!ghInstConfigDll) {
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UINT uErr = GetLastError();
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// Normandy 11985 - chrisk
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// filenames changed for Win95 and NT
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if (TRUE == IsNT())
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{
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DisplayErrorMessage(hWnd,IDS_ERRLoadConfigDllNT1,uErr,ERRCLS_STANDARD,
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MB_ICONSTOP);
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}
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else
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{
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DisplayErrorMessage(hWnd,IDS_ERRLoadConfigDll1,uErr,ERRCLS_STANDARD,
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MB_ICONSTOP);
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}
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return FALSE;
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}
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//
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// Cycle through the API table and get proc addresses for all the APIs we
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// need - on NT icfg32.dll has 2 extra entry points
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//
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if (TRUE == IsNT())
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uiNumCfgApiProcs = NUM_CFGAPI_PROCS;
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else
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uiNumCfgApiProcs = NUM_CFGAPI_PROCS - 2;
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if (!GetApiProcAddresses(ghInstConfigDll,ConfigApiList,uiNumCfgApiProcs)) {
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// Normandy 11985 - chrisk
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// filenames changed for Win95 and NT
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if (TRUE == IsNT())
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{
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MsgBox(hWnd,IDS_ERRLoadConfigDllNT2,MB_ICONSTOP,MB_OK);
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}
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else
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{
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MsgBox(hWnd,IDS_ERRLoadConfigDll2,MB_ICONSTOP,MB_OK);
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}
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DeInitConfig();
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return FALSE;
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}
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}
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fCFGLoaded = TRUE;
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dwCfgRefCount ++;
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return TRUE;
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}
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/*******************************************************************
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NAME: DeInitConfig
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SYNOPSIS: Unloads Config dll.
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********************************************************************/
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VOID DeInitConfig()
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{
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DEBUGMSG("icfgcall.c::DeInitConfig()");
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UINT nIndex;
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// decrement reference count
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if (dwCfgRefCount)
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dwCfgRefCount --;
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// when the reference count hits zero, do real deinitialization stuff
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if (dwCfgRefCount == 0)
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{
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if (fCFGLoaded)
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{
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// set function pointers to NULL
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for (nIndex = 0;nIndex<NUM_CFGAPI_PROCS;nIndex++)
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*ConfigApiList[nIndex].ppFcnPtr = NULL;
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fCFGLoaded = FALSE;
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}
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// free the Config dll
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if (ghInstConfigDll)
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{
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DEBUGMSG("Unloading Config DLL");
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FreeLibrary(ghInstConfigDll);
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ghInstConfigDll = NULL;
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}
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}
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}
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