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/*
* 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);
}
}
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