338 lines
9.5 KiB
C
338 lines
9.5 KiB
C
/*++
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Copyright (c) 1994 Microsoft Corporation
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Module Name:
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OS2SS.C
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Abstract:
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functions to used to determine if the OS/2 subsystem is present
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on the current system.
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Author:
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Bob Watson (a-robw)
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Revision History:
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23 Dec 94
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--*/
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#include <windows.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <c2dll.h>
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#include <c2inc.h>
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#include <c2utils.h>
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#include "c2funcs.h"
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#include "c2funres.h"
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// define action codes here. They are only meaningful in the
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// context of this module.
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#define SECURE C2DLL_C2
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static
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BOOL
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IsOs2OnSystem (
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)
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{
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BOOL bFileFound;
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LPCTSTR szFileToCheck;
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TCHAR szOs2Path[MAX_PATH];
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SET_WAIT_CURSOR;
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// check for OS2SS.EXE
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szFileToCheck = GetStringResource(GetDllInstance(), IDS_OS2SS_FILE);
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GetExpandedFileName (
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(LPTSTR)szFileToCheck,
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MAX_PATH,
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szOs2Path,
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NULL);
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bFileFound = FileExists(szOs2Path);
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if (bFileFound) {
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// check to see if it's really there
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if (GetFileSizeFromPath(szOs2Path) == 0) {
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// just a name so reset flag
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bFileFound = FALSE;
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}
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}
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if (!bFileFound) {
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// check for OS2.EXE
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szFileToCheck = GetStringResource(GetDllInstance(), IDS_OS2_FILE);
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GetExpandedFileName (
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(LPTSTR)szFileToCheck,
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MAX_PATH,
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szOs2Path,
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NULL);
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bFileFound = FileExists(szOs2Path);
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if (bFileFound) {
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// check to see if it's really there
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if (GetFileSizeFromPath(szOs2Path) == 0) {
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// just a name so reset flag
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bFileFound = FALSE;
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}
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}
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}
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SET_ARROW_CURSOR;
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return bFileFound;
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}
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LONG
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C2QueryOs2ss (
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IN LPARAM lParam
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)
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/*++
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Routine Description:
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Function called to find out if the OS/2 subsystem is installed
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on the system. For C2 compliance, OS/2 must not be
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allowed on the system.
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Arguments:
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Pointer to the Dll data block passed as an LPARAM.
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ReturnValue:
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ERROR_SUCCESS if the function succeeds otherwise a
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WIN32 error is returned if an error occurs
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--*/
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{
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PC2DLL_DATA pC2Data;
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if (lParam != 0) {
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pC2Data = (PC2DLL_DATA)lParam;
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pC2Data->lC2Compliance = SECURE; // assume true for now
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// check for DOS files found on system
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if (IsOs2OnSystem()) {
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pC2Data->lC2Compliance = C2DLL_NOT_SECURE;
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lstrcpy (pC2Data->szStatusName,
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GetStringResource (GetDllInstance(), IDS_OS2_ON_SYSTEM));
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}
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if (pC2Data->lC2Compliance == SECURE) {
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lstrcpy (pC2Data->szStatusName,
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GetStringResource (GetDllInstance(), IDS_OS2_NOT_ON_SYSTEM));
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}
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} else {
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return ERROR_BAD_ARGUMENTS;
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}
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return ERROR_SUCCESS;
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}
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LONG
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C2SetOs2ss (
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IN LPARAM lParam
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)
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/*++
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Routine Description:
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Function called to change the current state of this configuration
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item based on an action code passed in the DLL data block. If
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this function successfully sets the state of the configuration
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item, then the C2 Compliance flag and the Status string to reflect
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the new value of the configuration item.
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Arguments:
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Pointer to the Dll data block passed as an LPARAM.
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ReturnValue:
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ERROR_SUCCESS if the function succeeds otherwise a
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WIN32 error is returned if an error occurs
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--*/
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{
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PC2DLL_DATA pC2Data;
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LPCTSTR szFileToCheck;
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TCHAR szOldPath[MAX_PATH];
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TCHAR szNewPath[MAX_PATH];
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int nMbReturn = 0;
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BOOL bReturn;
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BOOL bDisplayMessageBox = TRUE;
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LONG lReturn = ERROR_SUCCESS;
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if (lParam != 0) {
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pC2Data = (PC2DLL_DATA)lParam;
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if (pC2Data->lActionCode == 1) {
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while (bDisplayMessageBox) {
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nMbReturn = DisplayDllMessageBox (
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pC2Data->hWnd,
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IDS_OS2_CONFIRM,
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IDS_OS2_CAPTION,
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MBOKCANCEL_EXCLAIM |
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/* WinVer >= 4.0 only
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MB_HELP |
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*/
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MB_DEFBUTTON2);
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switch (nMbReturn) {
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case IDOK:
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SET_WAIT_CURSOR;
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szFileToCheck = GetStringResource(
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GetDllInstance(), IDS_OS2SS_FILE);
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GetExpandedFileName (
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(LPTSTR)szFileToCheck,
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MAX_PATH,
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szOldPath,
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NULL);
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if (FileExists (szOldPath)) {
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szFileToCheck = GetStringResource(
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GetDllInstance(), IDS_NEW_OS2SS_FILE);
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GetExpandedFileName (
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(LPTSTR)szFileToCheck,
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MAX_PATH,
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szNewPath,
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NULL);
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bReturn = DeleteFile (szOldPath);
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} else {
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// if the file does not exist, then that's ok too.
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bReturn = TRUE;
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}
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if (bReturn) {
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// then all went OK so change the other file now
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szFileToCheck = GetStringResource(
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GetDllInstance(), IDS_OS2_FILE);
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GetExpandedFileName (
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(LPTSTR)szFileToCheck,
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MAX_PATH,
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szOldPath,
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NULL);
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if (FileExists (szOldPath)) {
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szFileToCheck = GetStringResource(
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GetDllInstance(), IDS_NEW_OS2_FILE);
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GetExpandedFileName (
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(LPTSTR)szFileToCheck,
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MAX_PATH,
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szNewPath,
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NULL);
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bReturn = DeleteFile (szOldPath);
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} else {
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// if the file does not exist, then that's ok too.
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bReturn = TRUE;
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}
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}
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if (bReturn) {
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// then all files have been renamed so update message
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pC2Data->lC2Compliance = SECURE;
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lstrcpy (pC2Data->szStatusName,
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GetStringResource (GetDllInstance(),
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IDS_OS2_NOT_ON_SYSTEM));
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lReturn = ERROR_SUCCESS;
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} else {
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DisplayDllMessageBox (
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pC2Data->hWnd,
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IDS_OS2_ERROR_MOVING,
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IDS_OS2_CAPTION,
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MBOK_EXCLAIM);
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lReturn = ERROR_CAN_NOT_COMPLETE;
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}
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SET_ARROW_CURSOR;
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bDisplayMessageBox = FALSE;
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break;
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case IDCANCEL:
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bDisplayMessageBox = FALSE;
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break;
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/* WinVer >= 4.00 only
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case IDHELP:
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PostMessage (pC2Data->hWnd, UM_SHOW_CONTEXT_HELP, 0, 0);
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break;
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*/
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}
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pC2Data->lActionCode = 0;
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} // end while Show Message Box
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}
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} else {
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lReturn = ERROR_BAD_ARGUMENTS;
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}
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return lReturn;
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}
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LONG
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C2DisplayOs2ss (
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IN LPARAM lParam
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)
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/*++
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Routine Description:
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Function called to display more information on the configuration
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item and provide the user with the option to change the current
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setting (if appropriate). If the User "OK's" out of the UI,
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then the action code field in the DLL data block is set to the
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appropriate (and configuration item-specific) action code so the
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"Set" function can be called to perform the desired action. If
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the user Cancels out of the UI, then the Action code field is
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set to 0 (no action) and no action is performed.
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Arguments:
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Pointer to the Dll data block passed as an LPARAM.
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ReturnValue:
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ERROR_SUCCESS if the function succeeds otherwise a
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WIN32 error is returned if an error occurs
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--*/
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{
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PC2DLL_DATA pC2Data;
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if (lParam != 0) {
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pC2Data = (PC2DLL_DATA)lParam;
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// check the C2 Compliance flag to see if the list box or
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// message box should be displayed
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if (pC2Data->lC2Compliance == SECURE) {
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// all volumes are OK so just pop a message box
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DisplayDllMessageBox (
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pC2Data->hWnd,
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IDS_OS2_NOT_ON_SYSTEM,
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IDS_OS2_CAPTION,
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MBOK_INFO);
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pC2Data->lActionCode = 0;
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} else {
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if (DisplayDllMessageBox (
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pC2Data->hWnd,
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IDS_OS2_DISPLAY_MESSAGE,
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IDS_OS2_CAPTION,
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MBOKCANCEL_EXCLAIM) == IDOK) {
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pC2Data->lActionCode = 1;
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} else {
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pC2Data->lActionCode = 0;
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}
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}
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} else {
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return ERROR_BAD_ARGUMENTS;
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}
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return ERROR_SUCCESS;
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}
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