diff options
Diffstat (limited to 'src/share/classes/com/sun/crypto/provider/RangeUtil.java')
-rw-r--r-- | src/share/classes/com/sun/crypto/provider/RangeUtil.java | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/share/classes/com/sun/crypto/provider/RangeUtil.java b/src/share/classes/com/sun/crypto/provider/RangeUtil.java new file mode 100644 index 0000000000..ea4983811e --- /dev/null +++ b/src/share/classes/com/sun/crypto/provider/RangeUtil.java @@ -0,0 +1,53 @@ +/* + * Copyright (c) 2018, 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. + */ + +package com.sun.crypto.provider; + +import java.util.List; +import java.util.function.BiFunction; +import java.security.*; + +/** + * This class holds the various utility methods for range checks. + */ + +final class RangeUtil { + + private static final BiFunction<String, List<Integer>, + ArrayIndexOutOfBoundsException> AIOOBE_SUPPLIER = + Preconditions.outOfBoundsExceptionFormatter + (ArrayIndexOutOfBoundsException::new); + + public static void blockSizeCheck(int len, int blockSize) { + if ((len % blockSize) != 0) { + throw new ProviderException("Internal error in input buffering"); + } + } + + public static void nullAndBoundsCheck(byte[] array, int offset, int len) { + // NPE is thrown when array is null + Preconditions.checkFromIndexSize(offset, len, array.length, AIOOBE_SUPPLIER); + } +} |