/*++ Copyright (c) 1994 Microsoft Corporation Module Name: OS2SS.C Abstract: functions to used to determine if the OS/2 subsystem is present on the current system. Author: Bob Watson (a-robw) Revision History: 23 Dec 94 --*/ #include #include #include #include #include #include #include "c2funcs.h" #include "c2funres.h" // define action codes here. They are only meaningful in the // context of this module. #define SECURE C2DLL_C2 static BOOL IsOs2OnSystem ( ) { BOOL bFileFound; LPCTSTR szFileToCheck; TCHAR szOs2Path[MAX_PATH]; SET_WAIT_CURSOR; // check for OS2SS.EXE szFileToCheck = GetStringResource(GetDllInstance(), IDS_OS2SS_FILE); GetExpandedFileName ( (LPTSTR)szFileToCheck, MAX_PATH, szOs2Path, NULL); bFileFound = FileExists(szOs2Path); if (bFileFound) { // check to see if it's really there if (GetFileSizeFromPath(szOs2Path) == 0) { // just a name so reset flag bFileFound = FALSE; } } if (!bFileFound) { // check for OS2.EXE szFileToCheck = GetStringResource(GetDllInstance(), IDS_OS2_FILE); GetExpandedFileName ( (LPTSTR)szFileToCheck, MAX_PATH, szOs2Path, NULL); bFileFound = FileExists(szOs2Path); if (bFileFound) { // check to see if it's really there if (GetFileSizeFromPath(szOs2Path) == 0) { // just a name so reset flag bFileFound = FALSE; } } } SET_ARROW_CURSOR; return bFileFound; } LONG C2QueryOs2ss ( IN LPARAM lParam ) /*++ Routine Description: Function called to find out if the OS/2 subsystem is installed on the system. For C2 compliance, OS/2 must not be allowed on the system. Arguments: Pointer to the Dll data block passed as an LPARAM. ReturnValue: ERROR_SUCCESS if the function succeeds otherwise a WIN32 error is returned if an error occurs --*/ { PC2DLL_DATA pC2Data; if (lParam != 0) { pC2Data = (PC2DLL_DATA)lParam; pC2Data->lC2Compliance = SECURE; // assume true for now // check for DOS files found on system if (IsOs2OnSystem()) { pC2Data->lC2Compliance = C2DLL_NOT_SECURE; lstrcpy (pC2Data->szStatusName, GetStringResource (GetDllInstance(), IDS_OS2_ON_SYSTEM)); } if (pC2Data->lC2Compliance == SECURE) { lstrcpy (pC2Data->szStatusName, GetStringResource (GetDllInstance(), IDS_OS2_NOT_ON_SYSTEM)); } } else { return ERROR_BAD_ARGUMENTS; } return ERROR_SUCCESS; } LONG C2SetOs2ss ( IN LPARAM lParam ) /*++ Routine Description: Function called to change the current state of this configuration item based on an action code passed in the DLL data block. If this function successfully sets the state of the configuration item, then the C2 Compliance flag and the Status string to reflect the new value of the configuration item. Arguments: Pointer to the Dll data block passed as an LPARAM. ReturnValue: ERROR_SUCCESS if the function succeeds otherwise a WIN32 error is returned if an error occurs --*/ { PC2DLL_DATA pC2Data; LPCTSTR szFileToCheck; TCHAR szOldPath[MAX_PATH]; TCHAR szNewPath[MAX_PATH]; int nMbReturn = 0; BOOL bReturn; BOOL bDisplayMessageBox = TRUE; LONG lReturn = ERROR_SUCCESS; if (lParam != 0) { pC2Data = (PC2DLL_DATA)lParam; if (pC2Data->lActionCode == 1) { while (bDisplayMessageBox) { nMbReturn = DisplayDllMessageBox ( pC2Data->hWnd, IDS_OS2_CONFIRM, IDS_OS2_CAPTION, MBOKCANCEL_EXCLAIM | /* WinVer >= 4.0 only MB_HELP | */ MB_DEFBUTTON2); switch (nMbReturn) { case IDOK: SET_WAIT_CURSOR; szFileToCheck = GetStringResource( GetDllInstance(), IDS_OS2SS_FILE); GetExpandedFileName ( (LPTSTR)szFileToCheck, MAX_PATH, szOldPath, NULL); if (FileExists (szOldPath)) { szFileToCheck = GetStringResource( GetDllInstance(), IDS_NEW_OS2SS_FILE); GetExpandedFileName ( (LPTSTR)szFileToCheck, MAX_PATH, szNewPath, NULL); bReturn = DeleteFile (szOldPath); } else { // if the file does not exist, then that's ok too. bReturn = TRUE; } if (bReturn) { // then all went OK so change the other file now szFileToCheck = GetStringResource( GetDllInstance(), IDS_OS2_FILE); GetExpandedFileName ( (LPTSTR)szFileToCheck, MAX_PATH, szOldPath, NULL); if (FileExists (szOldPath)) { szFileToCheck = GetStringResource( GetDllInstance(), IDS_NEW_OS2_FILE); GetExpandedFileName ( (LPTSTR)szFileToCheck, MAX_PATH, szNewPath, NULL); bReturn = DeleteFile (szOldPath); } else { // if the file does not exist, then that's ok too. bReturn = TRUE; } } if (bReturn) { // then all files have been renamed so update message pC2Data->lC2Compliance = SECURE; lstrcpy (pC2Data->szStatusName, GetStringResource (GetDllInstance(), IDS_OS2_NOT_ON_SYSTEM)); lReturn = ERROR_SUCCESS; } else { DisplayDllMessageBox ( pC2Data->hWnd, IDS_OS2_ERROR_MOVING, IDS_OS2_CAPTION, MBOK_EXCLAIM); lReturn = ERROR_CAN_NOT_COMPLETE; } SET_ARROW_CURSOR; bDisplayMessageBox = FALSE; break; case IDCANCEL: bDisplayMessageBox = FALSE; break; /* WinVer >= 4.00 only case IDHELP: PostMessage (pC2Data->hWnd, UM_SHOW_CONTEXT_HELP, 0, 0); break; */ } pC2Data->lActionCode = 0; } // end while Show Message Box } } else { lReturn = ERROR_BAD_ARGUMENTS; } return lReturn; } LONG C2DisplayOs2ss ( IN LPARAM lParam ) /*++ Routine Description: Function called to display more information on the configuration item and provide the user with the option to change the current setting (if appropriate). If the User "OK's" out of the UI, then the action code field in the DLL data block is set to the appropriate (and configuration item-specific) action code so the "Set" function can be called to perform the desired action. If the user Cancels out of the UI, then the Action code field is set to 0 (no action) and no action is performed. Arguments: Pointer to the Dll data block passed as an LPARAM. ReturnValue: ERROR_SUCCESS if the function succeeds otherwise a WIN32 error is returned if an error occurs --*/ { PC2DLL_DATA pC2Data; if (lParam != 0) { pC2Data = (PC2DLL_DATA)lParam; // check the C2 Compliance flag to see if the list box or // message box should be displayed if (pC2Data->lC2Compliance == SECURE) { // all volumes are OK so just pop a message box DisplayDllMessageBox ( pC2Data->hWnd, IDS_OS2_NOT_ON_SYSTEM, IDS_OS2_CAPTION, MBOK_INFO); pC2Data->lActionCode = 0; } else { if (DisplayDllMessageBox ( pC2Data->hWnd, IDS_OS2_DISPLAY_MESSAGE, IDS_OS2_CAPTION, MBOKCANCEL_EXCLAIM) == IDOK) { pC2Data->lActionCode = 1; } else { pC2Data->lActionCode = 0; } } } else { return ERROR_BAD_ARGUMENTS; } return ERROR_SUCCESS; }