| /* |
| * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| #ifndef __SAFE_ALLOC_H__ |
| #define __SAFE_ALLOC_H__ |
| |
| #include "j2d_md.h" |
| |
| /* |
| * Macroses defined below are wrappers for alloc functions |
| * that perform buffer size calculation with integer overflow |
| * check. |
| */ |
| #define SAFE_TO_ALLOC_2(c, sz) \ |
| (((c) > 0) && ((sz) > 0) && \ |
| ((0xffffffffu / ((juint)(c))) > ((juint)(sz)))) |
| |
| #define SAFE_TO_ALLOC_3(w, h, sz) \ |
| (((w) > 0) && ((h) > 0) && ((sz) > 0) && \ |
| (((0xffffffffu / ((juint)(w))) / ((juint)(h))) > ((juint)(sz)))) |
| |
| |
| #endif // __SAFE_ALLOC_H__ |
