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/Selector/BasicConnect.java
+++ b/test/jdk/java/nio/channels/Selector/BasicConnect.java
@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2001, 2018, 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 Test nonblocking connect and finishConnect
+ * @bug 4457776
+ * @library .. /test/lib
+ * @build jdk.test.lib.Utils TestServers
+ * @run main BasicConnect
+ */
+
+import java.net.*;
+import java.nio.*;
+import java.nio.channels.*;
+import java.nio.channels.spi.SelectorProvider;
+import java.util.*;
+
+
+/**
+ * Typically there would be more than one channel registered to select
+ * on, this test is just a very simple version with only one channel
+ * registered for the connectSelector.
+ */
+
+public class BasicConnect {
+
+    public static void main(String[] args) throws Exception {
+        Selector connectSelector =
+            SelectorProvider.provider().openSelector();
+        try (TestServers.EchoServer echoServer
+                = TestServers.EchoServer.startNewServer(100)) {
+            InetSocketAddress isa
+                = new InetSocketAddress(echoServer.getAddress(),
+                                        echoServer.getPort());
+            SocketChannel sc = SocketChannel.open();
+            sc.configureBlocking(false);
+            boolean result = sc.connect(isa);
+            if (result) {
+                System.out.println("Socket immediately connected on "
+                        + System.getProperty("os.name")
+                        + ": " + sc);
+            }
+            while (!result) {
+                SelectionKey connectKey = sc.register(connectSelector,
+                                                      SelectionKey.OP_CONNECT);
+                int keysAdded = connectSelector.select();
+                if (keysAdded > 0) {
+                    Set readyKeys = connectSelector.selectedKeys();
+                    Iterator i = readyKeys.iterator();
+                    while (i.hasNext()) {
+                        SelectionKey sk = (SelectionKey)i.next();
+                        i.remove();
+                        SocketChannel nextReady = (SocketChannel)sk.channel();
+                        result = nextReady.finishConnect();
+                        if (result)
+                            sk.cancel();
+                    }
+                }
+            }
+
+            byte[] bs = new byte[] { (byte)0xca, (byte)0xfe,
+                                     (byte)0xba, (byte)0xbe };
+            ByteBuffer bb = ByteBuffer.wrap(bs);
+            sc.configureBlocking(true);
+            sc.write(bb);
+            bb.rewind();
+
+            ByteBuffer bb2 = ByteBuffer.allocateDirect(100);
+            int n = sc.read(bb2);
+            bb2.flip();
+
+            sc.close();
+            connectSelector.close();
+
+            if (!bb.equals(bb2))
+                throw new Exception("Echoed bytes incorrect: Sent "
+                                    + bb + ", got " + bb2);
+        }
+    }
+}