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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.
This commit is contained in:
russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
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73
test/jdk/java/io/File/createTempFile/NameTooLong.java Normal file
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/*
* Copyright (c) 2016, 2017, 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 8148023
* @summary Verify that createTempFile() will not fail for long component names.
*/
import java.io.File;
import java.io.IOException;
public class NameTooLong {
public static void main(String[] args) {
String[][] prefixSuffix = new String[][] {
new String[] {"1234567890123456789012345678901234567xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx89012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890","txt"},
new String[] {"prefix","1234567890123456789012345678901234567xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx89012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890.txt"},
new String[] {"prefix",".txt1234567890123456789012345678901234567xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx89012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"}
};
int failures = 0;
int index = 0;
for (String[] ps : prefixSuffix) {
File f;
try {
f = File.createTempFile(ps[0], ps[1],
new File(System.getProperty("test.dir", ".")));
String s = f.toPath().getFileName().toString();
if (!s.startsWith(ps[0].substring(0, 3))) {
System.err.printf("%s did not start with %s%n", s,
ps[0].substring(0, 3));
failures++;
}
if (ps[1].startsWith(".")
&& !s.contains(ps[1].substring(0, 4))) {
System.err.printf("%s did not contain %s%n", s,
ps[1].substring(0, 4));
failures++;
}
} catch (IOException e) {
failures++;
System.err.println();
e.printStackTrace();
System.err.println();
}
index++;
}
if (failures != 0) {
throw new RuntimeException("Test failed!");
}
}
}