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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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135
test/jdk/java/io/charStreams/BufferedReaderMark.java Normal file
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/*
* Copyright (c) 1997, 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
@summary General tests for BufferedReader.mark
*/
import java.io.*;
public class BufferedReaderMark {
static int bufferSize = -1;
static int inputSize = -1;
static String d2(int n) {
String s = Integer.toString(n);
if (s.length() < 2)
return s + " ";
else
return s;
}
static void fail(String s) {
throw new RuntimeException(s);
}
public static void main(String[] args) throws Exception {
PrintStream log = System.err;
if (bufferSize == -1)
bufferSize = 7;
if (inputSize == -1)
inputSize = bufferSize * 3;
try {
Reader in = new BufferedReader(new ABCReader(inputSize), bufferSize);
char buf[] = new char[bufferSize];
if (in.read(buf) != bufferSize)
fail("Read failed");
in.reset();
fail("reset() didn't throw");
}
catch (IOException x) {
if (x.getMessage().equals("Stream not marked"))
log.println("Unmarked-stream test OK");
else
fail(x.toString());
}
boolean err = false;
try {
Reader in = new BufferedReader(new ABCReader(inputSize), bufferSize);
char buf[] = new char[bufferSize];
if (in.read() == -1)
fail("Read 1 failed");
in.mark(bufferSize);
while (in.read() != -1);
in.reset();
fail("reset() didn't throw");
}
catch (IOException x) {
if (x.getMessage().equals("Mark invalid")) {
err = true;
log.println("Invalid-mark test OK");
}
else {
log.println("Invalid-mark test failed: " + x);
fail(x.toString());
}
}
if (! err)
fail("Invalid-mark test failed: Exception not thrown");
int c;
for (int off = 0; off < bufferSize * 2; off++) {
for (int ra = 0; ra <= inputSize + 2; ra++) {
Reader in = new BufferedReader(new ABCReader(inputSize), bufferSize);
log.print(d2(off) + ", " + d2(ra) + " mark: ");
for (int i = 0; i < off; i++) {
if ((c = in.read()) == -1) {
log.print("<EOF>");
break;
}
log.print((char) c);
}
in.mark(ra);
for (int i = 0; i < ra; i++) {
if ((c = in.read()) == -1) {
log.print("<EOF>");
break;
}
log.print((char) c);
}
log.println();
log.print(d2(off) + ", " + d2(ra) + " reset: ");
in.reset();
for (int i = 0; i < off; i++)
log.print(' ');
for (;;) {
if ((c = in.read()) == -1) {
log.print("<EOF>");
break;
}
log.print((char) c);
}
log.println();
}
}
}
}