[ros-diffs] [greatlrd] 33267: NtUserEnumDisplaySettings remove two MmCopyFromCaller, never use MmCopyFromCaller for it make debuging pain in the ass

Author: greatlrd
Date: Sun May  4 08:23:19 2008
New Revision: 33267

URL: http://svn.reactos.org/svn/reactos?rev=33267&view=rev
Log:
NtUserEnumDisplaySettings
remove two MmCopyFromCaller, never use MmCopyFromCaller for it make debuging pain in the
ass

Modified:
    trunk/reactos/subsystems/win32/win32k/ntuser/windc.c

Modified: trunk/reactos/subsystems/win32/win32k/ntuser/windc.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/nt…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntuser/windc.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/ntuser/windc.c [iso-8859-1] Sun May  4 08:23:19
2008
@@ -914,18 +914,21 @@
    USHORT Size = 0, ExtraSize = 0;
 
    /* Copy the devmode */
-   Status = MmCopyFromCaller(&Size, &lpDevMode->dmSize, sizeof (Size));
-   if (!NT_SUCCESS(Status))
-   {
-      SetLastNtError(Status);
-      return FALSE;
-   }
-   Status = MmCopyFromCaller(&ExtraSize, &lpDevMode->dmDriverExtra, sizeof
(ExtraSize));
-   if (!NT_SUCCESS(Status))
-   {
-      SetLastNtError(Status);
-      return FALSE;
-   }
+   _SEH_TRY
+   {
+        ProbeForRead(&lpDevMode->dmSize, sizeof(DEVMODEW), 1);
+        Size = lpDevMode->dmSize;
+        ExtraSize = lpDevMode->dmDriverExtra;
+   }
+   _SEH_HANDLE
+   {
+       DPRINT1("FIXME ? : Out of range of DEVMODEW size \n");
+       SetLastNtError(_SEH_GetExceptionCode());
+       _SEH_YIELD(return FALSE);
+   }
+   _SEH_END;
+
+
    pSafeDevMode = ExAllocatePool(PagedPool, Size + ExtraSize);
    if (pSafeDevMode == NULL)
    {