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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
commit 0a580b313d
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78
test/jdk/sun/nio/cs/FindASCIIRangeCodingBugs.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 6378295
* @summary Roundtrip Encoding/Decoding of ASCII chars from 0x00-0x7f
*/
import java.util.*;
import java.nio.*;
import java.nio.charset.*;
public class FindASCIIRangeCodingBugs {
private static int failures = 0;
private static byte[] asciiBytes = new byte[0x80];
private static char[] asciiChars = new char[0x80];
private static String asciiString;
private static void check(String csn) throws Exception {
System.out.println(csn);
if (! Arrays.equals(asciiString.getBytes(csn), asciiBytes)) {
System.out.printf("%s -> bytes%n", csn);
failures++;
}
if (! new String(asciiBytes, csn).equals(asciiString)) {
System.out.printf("%s -> chars%n", csn);
failures++;
}
}
public static void main(String[] args) throws Exception {
for (int i = 0; i < 0x80; i++) {
asciiBytes[i] = (byte) i;
asciiChars[i] = (char) i;
}
asciiString = new String(asciiChars);
Charset ascii = Charset.forName("ASCII");
for (Map.Entry<String,Charset> e
: Charset.availableCharsets().entrySet()) {
String csn = e.getKey();
Charset cs = e.getValue();
if (!cs.contains(ascii) ||
csn.matches(".*2022.*") || //iso2022 family
csn.matches("x-windows-5022[0|1]") || //windows 2022jp
csn.matches(".*UTF-[16|32].*")) //multi-bytes
continue;
if (! cs.canEncode()) continue;
try {
check(csn);
} catch (Throwable t) {
t.printStackTrace();
failures++;
}
}
if (failures > 0)
throw new Exception(failures + "tests failed");
}
}