120 lines
3.7 KiB
Java
120 lines
3.7 KiB
Java
/*
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* Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 6864911
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* @summary ASN.1/DER input stream parser needs more work
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*/
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import java.io.*;
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import sun.security.util.*;
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import sun.misc.IOUtils;
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public class BadValue {
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public static void main(String[] args) throws Exception {
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// Test IOUtils.readFully
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// We have 4 bytes
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InputStream in = new ByteArrayInputStream(new byte[10]);
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byte[] bs = IOUtils.readFully(in, 4, true);
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if (bs.length != 4 || in.available() != 6) {
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throw new Exception("First read error");
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}
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// But only 6 left
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bs = IOUtils.readFully(in, 10, false);
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if (bs.length != 6 || in.available() != 0) {
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throw new Exception("Second read error");
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}
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// MAX read as much as it can
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in = new ByteArrayInputStream(new byte[10]);
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bs = IOUtils.readFully(in, Integer.MAX_VALUE, true);
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if (bs.length != 10 || in.available() != 0) {
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throw new Exception("Second read error");
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}
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// MAX ignore readAll
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in = new ByteArrayInputStream(new byte[10]);
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bs = IOUtils.readFully(in, Integer.MAX_VALUE, false);
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if (bs.length != 10 || in.available() != 0) {
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throw new Exception("Second read error");
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}
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// 20>10, readAll means failure
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in = new ByteArrayInputStream(new byte[10]);
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try {
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bs = IOUtils.readFully(in, 20, true);
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throw new Exception("Third read error");
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} catch (EOFException e) {
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// OK
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}
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int bignum = 10 * 1024 * 1024;
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bs = IOUtils.readFully(new SuperSlowStream(bignum), -1, true);
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if (bs.length != bignum) {
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throw new Exception("Fourth read error");
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}
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// Test DerValue
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byte[] input = {0x04, (byte)0x84, 0x40, 0x00, 0x42, 0x46, 0x4b};
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try {
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new DerValue(new ByteArrayInputStream(input));
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} catch (IOException ioe) {
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// This is OK
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}
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}
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}
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/**
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* An InputStream contains a given number of bytes, but only returns one byte
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* per read.
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*/
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class SuperSlowStream extends InputStream {
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private int p;
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/**
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* @param Initial capacity
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*/
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public SuperSlowStream(int capacity) {
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p = capacity;
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}
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@Override
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public int read() throws IOException {
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if (p > 0) {
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p--;
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return 0;
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} else {
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return -1;
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}
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}
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@Override
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public int read(byte b[], int off, int len) throws IOException {
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if (len == 0) return 0;
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if (p > 0) {
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p--;
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b[off] = 0;
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return 1;
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} else {
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return -1;
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}
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}
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}
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