russell@unturf.com
0a580b313d
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.
83 lines
3.2 KiB
Java
83 lines
3.2 KiB
Java
/*
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* Copyright (c) 2026, Red Hat, Inc.
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*
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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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import jdk.test.lib.process.ProcessTools;
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import java.io.FileDescriptor;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.lang.reflect.Field;
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import java.nio.file.Files;
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import java.nio.file.Path;
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/*
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* @test
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* @summary Ensures the java executable is able to load extra security
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* properties files from anonymous files and pipes.
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* @bug 8352728
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* @requires os.family == "linux"
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* @modules java.base/java.io:+open
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* @library /test/lib
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* @run main LinuxAnonymousFiles
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*/
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public class LinuxAnonymousFiles {
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private static final String TEST_PROP = "property.name=PROPERTY_VALUE";
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private static final class AnonymousFile implements AutoCloseable {
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public final Path fdPath;
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private final FileInputStream fis;
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private AnonymousFile(CharSequence content) throws Exception {
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Path tmp = Files.createTempFile("anonymous-file-", "");
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Files.writeString(tmp, content + System.lineSeparator());
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fis = new FileInputStream(tmp.toFile());
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Files.delete(tmp);
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// Now the file is regular but anonymous, and will be unlinked
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// when we close the last file descriptor referring to it. The
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// fis instance ensures we keep it alive until close() is invoked.
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Field field = FileDescriptor.class.getDeclaredField("fd");
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field.setAccessible(true);
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int fd = field.getInt(fis.getFD());
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fdPath = Path.of("/proc/self").toRealPath().resolve("fd/" + fd);
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}
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@Override
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public void close() throws IOException {
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fis.close();
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}
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}
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public static void main(String[] args) throws Exception {
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Path java = Path.of(System.getProperty("test.jdk"), "bin", "java");
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try (AnonymousFile af = new AnonymousFile("include /dev/stdin")) {
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ProcessTools.executeProcess(new ProcessBuilder(java.toString(),
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"-Djava.security.debug=properties",
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"-Djava.security.properties=" + af.fdPath,
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"-XshowSettings:security:properties", "-version"),
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TEST_PROP).shouldHaveExitValue(0).shouldContain(TEST_PROP);
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}
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System.out.println("TEST PASS - OK");
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}
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}
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