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/net/NetworkInterface/Test.java
+++ b/test/jdk/java/net/NetworkInterface/Test.java
@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2001, 2013, 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 4405354 6594296 8058216
+ * @library /test/lib
+ * @run main/othervm -Xcheck:jni Test
+ * @run main/othervm -Xcheck:jni -Djava.net.preferIPv4Stack=true Test
+ * @summary Basic tests for NetworkInterface
+ */
+import java.net.NetworkInterface;
+import java.net.InetAddress;
+import java.util.Enumeration;
+import jdk.test.lib.net.IPSupport;
+
+public class Test {
+    static final boolean isWindows = System.getProperty("os.name").startsWith("Windows");
+
+    public static void main(String args[]) throws Exception {
+        IPSupport.throwSkippedExceptionIfNonOperational();
+
+        Enumeration nifs = NetworkInterface.getNetworkInterfaces();
+
+        while (nifs.hasMoreElements()) {
+            NetworkInterface ni = (NetworkInterface)nifs.nextElement();
+
+            //JDK-8038276: Should not test on Windows with Teredo Tunneling Pseudo-Interface
+            String dName = ni.getDisplayName();
+            if (isWindows && dName != null && dName.contains("Teredo"))
+                continue;
+
+            String name = ni.getName();
+            System.out.println("\n" + name);
+
+            /*
+             * Enumeration the IP addresses on this interface
+             */
+            Enumeration addrs = ni.getInetAddresses();
+            while (addrs.hasMoreElements()) {
+                InetAddress addr = (InetAddress)addrs.nextElement();
+                System.out.println(addr);
+                if (NetworkInterface.getByInetAddress(addr) == null) {
+                    throw new Exception("getByInetAddress returned null");
+                }
+            }
+            System.out.println("getInetAddresses() test passed.");
+
+            /*
+             * Check equals and hashCode contract
+             */
+            NetworkInterface ni2 = NetworkInterface.getByName(name);
+            if (!ni2.equals(ni)) {
+                throw new Exception("getByName returned: " + ni2);
+            }
+            if (!ni.equals(ni2)) {
+                throw new Exception("equals specification broken");
+            }
+            System.out.println("equals() tests passed.");
+            if (ni2.hashCode() != ni.hashCode()) {
+                throw new Exception("hashCode contract broken");
+            }
+            System.out.println("hashCode() test passed.");
+
+            byte[] ba = ni.getHardwareAddress();
+            if (ba != null && ba.length == 0) {
+                throw new Exception("getHardwareAddress returned 0 length byte array");
+            }
+            System.out.println("getHardwareAddress() test passed.");
+        }
+
+        // misc tests :-
+        //      getByXXX(null) should throw NPE
+        //      getByXXX("garbage") should return null
+
+        System.out.println("\nMiscellenous tests: ");
+
+        try {
+            NetworkInterface.getByName(null);
+        } catch (NullPointerException npe) {
+        }
+        System.out.println("getByName(null) test passed.");
+
+        try {
+            NetworkInterface.getByInetAddress(null);
+        } catch (NullPointerException npe) {
+        }
+        System.out.println("getByInetAddress(null) test passed.");
+
+        if (NetworkInterface.getByName("not-a-valid-name") != null) {
+            throw new Exception
+                ("getByName returned unexpected interface: null expected");
+        }
+        System.out.println("getByName(<unknown>) test passed.");
+
+        InetAddress ia = InetAddress.getByName("255.255.255.255");
+        if (NetworkInterface.getByInetAddress(ia) != null) {
+            throw new Exception
+                ("getByInetAddress returned unexpected interface: null expected");
+        }
+        System.out.println("getByName(getByInetAddress(<unknown>) test passed.");
+
+    }
+}