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fixed infinite loop if the number of clipping rectangles exceeded the maximum allowed.

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svn path=/trunk/; revision=7369
This commit is contained in:
Thomas Bluemel 2003-12-31 14:43:48 +00:00
parent 3c069498cc
commit f8eea2e937
1 changed files with 5 additions and 2 deletions
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7
reactos/subsys/win32k/eng/clip.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software * along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/ */
/* $Id: clip.c,v 1.17 2003/10/30 08:56:37 gvg Exp $ /* $Id: clip.c,v 1.18 2003/12/31 14:43:48 weiden Exp $
* *
* COPYRIGHT: See COPYING in the top level directory * COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel * PROJECT: ReactOS kernel
@ -328,7 +328,10 @@ CLIPOBJ_bEnum(IN CLIPOBJ* ClipObj,
nCopy = min( ClipGDI->EnumMax - ClipGDI->EnumPos, nCopy = min( ClipGDI->EnumMax - ClipGDI->EnumPos,
min( ClipGDI->EnumRects.c - ClipGDI->EnumPos, min( ClipGDI->EnumRects.c - ClipGDI->EnumPos,
(ObjSize - sizeof(ULONG)) / sizeof(RECTL))); (ObjSize - sizeof(ULONG)) / sizeof(RECTL)));
if(nCopy == 0)
{
return FALSE;
}
RtlCopyMemory( pERects->arcl, ClipGDI->EnumRects.arcl + ClipGDI->EnumPos, RtlCopyMemory( pERects->arcl, ClipGDI->EnumRects.arcl + ClipGDI->EnumPos,
nCopy * sizeof(RECTL) ); nCopy * sizeof(RECTL) );
pERects->c = nCopy; pERects->c = nCopy;