reactos/reactos/dll/win32/user32/misc/misc.c

/*
 *  ReactOS kernel
 *  Copyright (C) 1998, 1999, 2000, 2001 ReactOS Team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
/* $Id$
 *
 * PROJECT:         ReactOS user32.dll
 * FILE:            lib/user32/misc/misc.c
 * PURPOSE:         Misc
 * PROGRAMMER:      Thomas Weidenmueller (w3seek@users.sourceforge.net)
 * UPDATE HISTORY:
 *      19-11-2003  Created
 */

/* INCLUDES ******************************************************************/

#include <user32.h>

#include <wine/debug.h>

/* FUNCTIONS *****************************************************************/

/*
 * @implemented
 */
DWORD
STDCALL
GetGuiResources(
  HANDLE hProcess,
  DWORD uiFlags)
{
  return NtUserGetGuiResources(hProcess, uiFlags);
}


/*
 * Private calls for CSRSS
 */
VOID
STDCALL
PrivateCsrssManualGuiCheck(LONG Check)
{
  NtUserManualGuiCheck(Check);
}

VOID
STDCALL
PrivateCsrssInitialized(VOID)
{
  NtUserCallNoParam(NOPARAM_ROUTINE_CSRSS_INITIALIZED);
}


/*
 * @implemented
 */
BOOL
STDCALL
RegisterLogonProcess(DWORD dwProcessId, BOOL bRegister)
{
  return NtUserCallTwoParam(dwProcessId,
			    (DWORD)bRegister,
			    TWOPARAM_ROUTINE_REGISTERLOGONPROC);
}

/*
 * @implemented
 */
BOOL
STDCALL
SetLogonNotifyWindow (HWND Wnd, HWINSTA WinSta)
{
  /* Maybe we should call NtUserSetLogonNotifyWindow and let that one inform CSRSS??? */
  CSR_API_MESSAGE Request;
  ULONG CsrRequest;
  NTSTATUS Status;

  CsrRequest = MAKE_CSR_API(SET_LOGON_NOTIFY_WINDOW, CSR_GUI);
  Request.Data.SetLogonNotifyWindowRequest.LogonNotifyWindow = Wnd;

  Status = CsrClientCallServer(&Request,
			       NULL,
                   CsrRequest,
			       sizeof(CSR_API_MESSAGE));
  if (!NT_SUCCESS(Status) || !NT_SUCCESS(Status = Request.Status))
    {
      SetLastError(RtlNtStatusToDosError(Status));
      return(FALSE);
    }

  return(TRUE);
}

/*
 * @implemented
 */
BOOL WINAPI
UpdatePerUserSystemParameters(
   DWORD dwReserved,
   BOOL bEnable)
{
   return NtUserUpdatePerUserSystemParameters(dwReserved, bEnable);
}

PW32THREADINFO
GetW32ThreadInfo(VOID)
{
    PW32THREADINFO ti;

    ti = (PW32THREADINFO)NtCurrentTeb()->Win32ThreadInfo;
    if (ti == NULL)
    {
        /* create the W32THREADINFO structure */
        NtUserGetThreadState(THREADSTATE_GETTHREADINFO);
        ti = (PW32THREADINFO)NtCurrentTeb()->Win32ThreadInfo;
    }

    return ti;
}

PW32PROCESSINFO
GetW32ProcessInfo(VOID)
{
    PW32THREADINFO ti;
    PW32PROCESSINFO pi = NULL;

    ti = GetW32ThreadInfo();
    if (ti != NULL)
    {
        pi = ti->pi;
    }

    return pi;
}


/*
 * GetUserObjectSecurity
 *
 * Retrieves security information for user object specified
 * with handle 'hObject'. Descriptor returned in self-relative
 * format.
 *
 * Arguments:
 *  1) hObject - handle to an object to retrieve information for
 *  2) pSecurityInfo - type of information to retrieve
 *  3) pSecurityDescriptor - buffer which receives descriptor
 *  4) dwLength - size, in bytes, of buffer 'pSecurityDescriptor'
 *  5) pdwLengthNeeded - reseives actual size of descriptor
 *
 * Return Vaules:
 *  TRUE on success
 *  FALSE on failure, call GetLastError() for more information
 */
/*
 * @implemented
 */
BOOL
WINAPI
GetUserObjectSecurity(
    IN HANDLE hObject,
    IN PSECURITY_INFORMATION pSecurityInfo,
    OUT PSECURITY_DESCRIPTOR pSecurityDescriptor,
    IN DWORD dwLength,
    OUT PDWORD pdwLengthNeeded
)
{
DWORD dwWin32Error;
NTSTATUS Status;


    Status = NtQuerySecurityObject(
        hObject,            // Object Handle
        *pSecurityInfo,     // Security Information
        pSecurityDescriptor,// Security Descriptor
        dwLength,           // Buffer Length
        pdwLengthNeeded     // Actual Length
    );

    if ( ! NT_SUCCESS( Status ) ) {
        dwWin32Error = RtlNtStatusToDosError( Status );
        NtCurrentTeb()->LastErrorValue = dwWin32Error;
        return FALSE;
    }

    return TRUE;
}


/*
 * SetUserObjectSecurity
 *
 * Sets new security descriptor to user object specified by
 * handle 'hObject'. Descriptor must be in self-relative format.
 *
 * Arguments:
 *  1) hObject - handle to an object to set information for
 *  2) pSecurityInfo - type of information to apply
 *  3) pSecurityDescriptor - buffer which descriptor to set
 *
 * Return Vaules:
 *  TRUE on success
 *  FALSE on failure, call GetLastError() for more information
 */
/*
 * @implemented
 */
BOOL
WINAPI
SetUserObjectSecurity(
    IN HANDLE hObject,
    IN PSECURITY_INFORMATION pSecurityInfo,
    IN PSECURITY_DESCRIPTOR pSecurityDescriptor
)
{
DWORD dwWin32Error;
NTSTATUS Status;


    Status = NtSetSecurityObject(
        hObject,            // Object Handle
        *pSecurityInfo,     // Security Information
        pSecurityDescriptor // Security Descriptor
    );

    if ( ! NT_SUCCESS( Status ) ) {
        dwWin32Error = RtlNtStatusToDosError( Status );
        NtCurrentTeb()->LastErrorValue = dwWin32Error;
        return FALSE;
    }

    return TRUE;
}

/*
 * @implemented
 */
BOOL
STDCALL
EndTask(
	HWND    hWnd,
	BOOL fShutDown,
	BOOL fForce)
{
    SendMessageW(hWnd, WM_CLOSE, 0, 0);

    if (IsWindow(hWnd))
    {
        if (fForce)
            return DestroyWindow(hWnd);
        else
            return FALSE;
    }

    return TRUE;
}

/*
 * @implemented
 */
BOOL
STDCALL
IsGUIThread(
    BOOL bConvert)
{
  PW32THREADINFO ti = (PW32THREADINFO)NtCurrentTeb()->Win32ThreadInfo;
  if (ti == NULL)
  {
    if(bConvert)
    {
      NtUserGetThreadState(THREADSTATE_GETTHREADINFO);
      if ((PW32THREADINFO)NtCurrentTeb()->Win32ThreadInfo) return TRUE;
      else
         SetLastError(ERROR_NOT_ENOUGH_MEMORY);
    }
    return FALSE;
  }
  else
    return TRUE;
}

PUSER_HANDLE_ENTRY
FASTCALL
GetUser32Handle(HANDLE handle)
{
  PUSER_HANDLE_TABLE ht = gHandleTable;
  USHORT generation;

  DPRINT1("Main Handle Table %x\n", ht);

  INT Index = (((UINT)handle & 0xffff) - FIRST_USER_HANDLE) >> 1;

  if (Index < 0 || Index >= ht->nb_handles) return NULL;

  if (!ht->handles[Index].type) return NULL;

  generation = (UINT)handle >> 16;

  if (generation == ht->handles[Index].generation || !generation || generation == 0xffff)
     return &ht->handles[Index];

  return NULL;
}

//
// Validate Handle and return the pointer to the object.
//
PVOID
FASTCALL
ValidateHandle(HANDLE handle, UINT uType)
{
  PW32CLIENTINFO ClientInfo = GetWin32ClientInfo();

  if (uType == VALIDATE_TYPE_WIN)
  {
     if (handle == ClientInfo->hWND) return ClientInfo->pvWND;
  }

  PUSER_HANDLE_ENTRY pEntry = GetUser32Handle(handle);

// Must have an entry and must be the same type!
  if ( (!pEntry) || (pEntry->type != uType) )
  {
     switch ( uType )
     {  // Test (with wine too) confirms these results!
        case VALIDATE_TYPE_WIN:
          SetLastError(ERROR_INVALID_WINDOW_HANDLE);
          break;
        case VALIDATE_TYPE_MENU:
          SetLastError(ERROR_INVALID_MENU_HANDLE);
          break;
        case VALIDATE_TYPE_CURSOR:
          SetLastError(ERROR_INVALID_CURSOR_HANDLE);
          break;
        case VALIDATE_TYPE_MWPOS:
          SetLastError(ERROR_INVALID_DWP_HANDLE);
          break;
        case VALIDATE_TYPE_HOOK:
          SetLastError(ERROR_INVALID_HOOK_HANDLE);
          break;
        case VALIDATE_TYPE_ACCEL:
          SetLastError(ERROR_INVALID_ACCEL_HANDLE);
          break;
        default:
          SetLastError(ERROR_INVALID_HANDLE);
    }
    return NULL;
  }

  if (!(NtUserValidateHandleSecure(handle, FALSE))) return NULL;  

  return pEntry->ptr;
}