reactos/subsys/system/userinit/userinit.c

   1 /*
   2  *  ReactOS applications
   3  *  Copyright (C) 2001, 2002 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /* $Id: userinit.c,v 1.1 2003/12/07 01:12:58 weiden Exp $
  20  *
  21  * COPYRIGHT:   See COPYING in the top level directory
  22  * PROJECT:     ReactOS Userinit Logon Application
  23  * FILE:        subsys/system/userinit/userinit.c
  24  * PROGRAMMERS: Thomas Weidenmueller (w3seek@users.sourceforge.net)
  25  */
  26 #include <windows.h>
  27
  28
  29 /* GLOBALS ******************************************************************/
  30
  31 /* FUNCTIONS ****************************************************************/
  32
  33 static
  34 BOOL GetShell(WCHAR *CommandLine)
  35 {
  36   HKEY hKey;
  37   DWORD Type, Size;
  38   WCHAR Shell[MAX_PATH];
  39   BOOL Ret = FALSE;
  40
  41   if(RegOpenKeyEx(HKEY_LOCAL_MACHINE,
  42                   L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon",
  43                   0, KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS)
  44   {
  45     Size = MAX_PATH * sizeof(WCHAR);
  46     if(RegQueryValueEx(hKey,
  47                        L"Shell",
  48                        NULL,
  49                        &Type,
  50                        (LPBYTE)Shell,
  51                        &Size) == ERROR_SUCCESS)
  52     {
  53       if(Type == REG_SZ)
  54       {
  55         wcscpy(CommandLine, Shell);
  56         Ret = TRUE;
  57       }
  58     }
  59     RegCloseKey(hKey);
  60   }
  61
  62   if(!Ret)
  63   {
  64     if(GetWindowsDirectory(CommandLine, MAX_PATH - 13))
  65       wcscat(CommandLine, L"\\explorer.exe");
  66     else
  67       wcscpy(CommandLine, L"explorer.exe");
  68   }
  69
  70   return Ret;
  71 }
  72
  73 int WINAPI
  74 WinMain(HINSTANCE hInst,
  75         HINSTANCE hPrevInstance,
  76         LPSTR lpszCmdLine,
  77         int nCmdShow)
  78 {
  79   STARTUPINFO si;
  80   PROCESS_INFORMATION pi;
  81   WCHAR Shell[MAX_PATH];
  82
  83   GetShell(Shell);
  84
  85   ZeroMemory(&si, sizeof(STARTUPINFO));
  86   si.cb = sizeof(STARTUPINFO);
  87
  88   if(CreateProcess(NULL,
  89                    Shell,
  90                    NULL,
  91                    NULL,
  92                    FALSE,
  93                    NORMAL_PRIORITY_CLASS,
  94                    NULL,
  95                    NULL,
  96                    &si,
  97                    &pi))
  98   {
  99     CloseHandle(pi.hProcess);
 100     CloseHandle(pi.hThread);
 101   }
 102
 103   return 0;
 104 }
 105
 106 /* EOF */