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.

test/jdk/java/net/Socket/asyncClose/BrokenPipe.java

@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2001, 2019, 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 4511404
+ * @library /test/lib
+ * @summary Check that a broken pipe error doesn't throw an exception
+ *          indicating the socket is closed.
+ * @run main BrokenPipe
+ * @run main/othervm -Djava.net.preferIPv4Stack=true BrokenPipe
+ */
+import java.io.*;
+import java.net.*;
+import jdk.test.lib.net.IPSupport;
+
+public class BrokenPipe {
+
+    private static class Closer implements Runnable {
+        private final Socket s;
+
+        Closer(Socket s) {
+            this.s = s;
+        }
+
+        public void run() {
+            try {
+                /* gives time for 'write' to block */
+                Thread.sleep(5000);
+                s.close();
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        IPSupport.throwSkippedExceptionIfNonOperational();
+
+        ServerSocket ss = new ServerSocket(0, 0, InetAddress.getLocalHost());
+        Socket client = new Socket(InetAddress.getLocalHost(),
+                                   ss.getLocalPort());
+        Socket server = ss.accept();
+        ss.close();
+        new Thread(new Closer(server)).start();
+
+        try {
+            client.getOutputStream().write(new byte[1000000]);
+        } catch (IOException ioe) {
+            /*
+             * Check that the exception text doesn't indicate the
+             * socket is closed. In tiger we should be able to
+             * replace this by catching a more specific exception.
+             */
+            String text = ioe.getMessage();
+            if (text.toLowerCase().indexOf("closed") >= 0) {
+                throw ioe;
+            }
+        } finally {
+            server.close();
+        }
+    }
+
+}