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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
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russell@unturf.com 2026-03-26 17:11:57 -04:00
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test/jdk/sun/nio/cs/EucJpLinuxDecoderRecoveryTest.java Normal file
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/*
* Copyright (c) 2008, 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.
*
* 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.
*/
/* @test
@bug 5016049
@summary ensure euc-jp-linux charset decoder recovery for unmappable input
*/
import java.io.*;
public class EucJpLinuxDecoderRecoveryTest {
public static void main(String[] args) throws Exception {
byte[] encoded = {
// EUC_JP_LINUX mappable JIS X 0208 range
(byte)0xa6, (byte)0xc5,
// EUC_JP_LINUX Unmappable (JIS X 0212 range)
(byte)0x8f, (byte)0xa2, (byte)0xb7,
// EUC_JP_LINUX mappable JIS X 0208 range
(byte)0xa6, (byte)0xc7 };
char[] decodedChars = new char[3];
char[] expectedChars =
{
'\u03B5', // mapped
'\ufffd', // unmapped
'\u03B7' // mapped
};
ByteArrayInputStream bais = new ByteArrayInputStream(encoded);
InputStreamReader isr = new InputStreamReader(bais, "EUC_JP_LINUX");
int n = 0; // number of chars decoded
try {
n = isr.read(decodedChars);
} catch (Exception ex) {
throw new Error("euc-jp-linux decoding broken");
}
// check number of decoded chars is what is expected
if (n != expectedChars.length)
throw new Error("Unexpected number of chars decoded");
// Compare actual decoded with expected
for (int i = 0; i < n; i++) {
if (expectedChars[i] != decodedChars[i])
throw new Error("euc-jp-linux decoding incorrect");
}
}
}