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Add a safety check for number of control points in PolyBezierTo.

This commit is contained in:
Dmitry Timoshkov 2005-10-11 19:55:24 +00:00 committed by Alexandre Julliard
parent b99fa1546c
commit 007c73c7ce
1 changed files with 7 additions and 3 deletions
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10
dlls/gdi/painting.c
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@ -736,9 +736,13 @@ BOOL WINAPI PolyBezier( HDC hdc, const POINT* lppt, DWORD cPoints )
*/
BOOL WINAPI PolyBezierTo( HDC hdc, const POINT* lppt, DWORD cPoints )
{
DC * dc = DC_GetDCUpdate( hdc );
DC * dc;
BOOL ret;
/* cbPoints must be 3 * n (where n>=1) */
if (!cPoints || (cPoints % 3) != 0) return FALSE;
dc = DC_GetDCUpdate( hdc );
if(!dc) return FALSE;
if(PATH_IsPathOpen(dc->path))
@ -1110,8 +1114,8 @@ POINT *GDI_Bezier( const POINT *Points, INT count, INT *nPtsOut )
POINT *out;
INT Bezier, dwOut = BEZIER_INITBUFSIZE, i;
if((count - 1) % 3 != 0) {
ERR("Invalid no. of points\n");
if (count == 1 || (count - 1) % 3 != 0) {
ERR("Invalid no. of points %d\n", count);
return NULL;
}
*nPtsOut = 0;