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

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.
2026-03-26 17:11:57 -04:00 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/jdk/java/nio/channels/ServerSocketChannel/AdaptServerSocket.java
+++ b/test/jdk/java/nio/channels/ServerSocketChannel/AdaptServerSocket.java
@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2001, 2016, 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 4286936 8146213
+ * @summary Unit test for server-socket-channel adaptors
+ */
+
+import java.io.*;
+import java.net.*;
+import java.nio.*;
+import java.nio.channels.*;
+import java.nio.charset.*;
+
+
+public class AdaptServerSocket {
+
+    static java.io.PrintStream out = System.out;
+    static volatile boolean clientStarted = false;
+    static volatile Exception clientException = null;
+    static volatile Thread client = null;
+
+    static void startClient(final int port, final int dally)
+        throws Exception
+    {
+        Thread t = new Thread() {
+                public void run() {
+                    try (Socket so = new Socket()) {
+                        out.println("client:  " + so);
+                        clientStarted = true;
+                        if (dally > 0)
+                            Thread.sleep(dally);
+                        so.connect(new InetSocketAddress(port));
+                        if (Thread.interrupted()) {
+                            out.println("client interrupted");
+                            return;
+                        }
+                        out.println("client:  " + so);
+                        int a = so.getInputStream().read();
+                        out.println("client:  read " + a);
+                        a += 1;
+                        so.getOutputStream().write(a);
+                        out.println("client:  wrote " + a);
+                    } catch (Exception x) {
+                        if (x instanceof InterruptedException)
+                            return;
+                        clientException = x;
+                        x.printStackTrace();
+                    }
+                }
+            };
+        t.setDaemon(true);
+        t.start();
+        client = t;
+    }
+
+    static void test(int clientDally, int timeout, boolean shouldTimeout)
+        throws Exception
+    {
+        boolean needClient = !shouldTimeout;
+        client = null;
+        clientException = null;
+        clientStarted = false;
+        out.println();
+
+        try (ServerSocketChannel ssc = ServerSocketChannel.open();
+             ServerSocket sso = ssc.socket()) {
+            out.println("created: " + ssc);
+            out.println("         " + sso);
+            if (timeout != 0)
+                sso.setSoTimeout(timeout);
+            out.println("timeout: " + sso.getSoTimeout());
+            sso.bind(null);
+            out.println("bound:   " + ssc);
+            out.println("         " + sso);
+            if (needClient) {
+                startClient(sso.getLocalPort(), clientDally);
+                while (!clientStarted) {
+                    Thread.sleep(20);
+                }
+            }
+            Socket so = null;
+            try {
+                so = sso.accept();
+            } catch (SocketTimeoutException x) {
+                if (shouldTimeout)
+                    out.println("Accept timed out, as expected");
+                else
+                    throw x;
+            }
+            if (shouldTimeout && (so != null))
+                throw new Exception("Accept did not time out");
+
+            if (so != null) {
+                int a = 42;
+                so.getOutputStream().write(a);
+                int b = so.getInputStream().read();
+                if (b != a + 1)
+                    throw new Exception("Read incorrect data");
+                out.println("server:  read " + b);
+            }
+        }
+        if (needClient) {
+            client.interrupt();
+            client.join();
+            if (clientException != null)
+                throw clientException;
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        test(0, 0, false);
+        test(50, 5000, false);
+        test(500, 50, true);
+    }
+
+}