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/InetAddress/InternalNameServiceWithHostsFileTest.java
+++ b/test/jdk/java/net/InetAddress/InternalNameServiceWithHostsFileTest.java
@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2016, 2021, 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 8134577
+ * @summary Test the internal NameService implementation which is enabled via
+ *          the system property jdk.net.hosts.file. This property specifies
+ *          a file name that contains address host mappings, similar to those in
+ *          /etc/hosts file. TestHosts-III file  exist, with a set of ipv4 and ipv6
+ *          mappings
+ * @library /test/lib
+ * @build jdk.test.lib.net.IPSupport
+ * @run main/othervm -Djdk.net.hosts.file=${test.src}/TestHosts-III -Dsun.net.inetaddr.ttl=0
+ *      InternalNameServiceWithHostsFileTest
+ */
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.Arrays;
+
+import jdk.test.lib.net.IPSupport;
+
+public class InternalNameServiceWithHostsFileTest {
+    public static void main(String args[]) throws Exception {
+        // fe80::1
+        byte[] expectedIpv6Address = { (byte) 0xfe, (byte) 0x80, 0, 0, 0, 0, 0,
+                0, 0, 0, 0, 0, 0, 0, 0, 1 };
+        // fe00::0
+        byte[] expectedIpv6LocalAddress = { (byte) 0xfe, (byte) 0x00, 0, 0, 0,
+                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+        // 10.2.3.4
+        byte[] expectedIpv4Address = { 10, 2, 3, 4 };
+        //
+        byte[] expectedIpv6LocalhostAddress = { 0, 0, 0, 0, 0, 0, 0,
+                0, 0, 0, 0, 0, 0, 0, 0, 1 };
+
+        // 10.2.3.4  testHost.testDomain
+        testHostsMapping(expectedIpv4Address, "testHost.testDomain");
+
+        if (IPSupport.hasIPv6()) {
+            // ::1     ip6-localhost ip6-loopback
+            testHostsMapping(expectedIpv6LocalhostAddress, "ip6-localhost");
+            // fe00::0 ip6-localnet
+            testHostsMapping(expectedIpv6LocalAddress, "ip6-localnet");
+            // fe80::1 link-local-host
+            testHostsMapping(expectedIpv6Address, "link-local-host");
+        }
+
+        testReverseLookup("10.2.3.4", "testHost.testDomain");
+
+        if (IPSupport.hasIPv6()) {
+            testReverseLookup("::1", "ip6-localhost");
+            testReverseLookup("0:0:0:0:0:0:0:1", "ip6-localhost");
+            testReverseLookup("0000:0000:0000:0000:0000:0000:0000:0001", "ip6-localhost");
+
+            testReverseLookup("fe00::0", "ip6-localnet");
+            testReverseLookup("fe00:0:0:0:0:0:0:0", "ip6-localnet");
+            testReverseLookup("fe00:0000:0000:0000:0000:0000:0000:0000", "ip6-localnet");
+
+            testReverseLookup("fe80::1", "link-local-host");
+            testReverseLookup("fe80:000:0:00:0:000:00:1", "link-local-host");
+            testReverseLookup("fe80:0000:0000:0000:0000:0000:0000:0001", "link-local-host");
+        }
+    }
+
+    private static void testHostsMapping(byte[] expectedIpAddress, String hostName)
+            throws UnknownHostException {
+        InetAddress testAddress;
+        byte[] rawIpAddress;
+        testAddress = InetAddress.getByName(hostName);
+        System.out
+                .println("############################  InetAddress == "
+                        + testAddress);
+
+        rawIpAddress = testAddress.getAddress();
+        if (!Arrays.equals(rawIpAddress, expectedIpAddress)) {
+            System.out.println("retrieved address == "
+                    + Arrays.toString(rawIpAddress)
+                    + " not equal to expected address == "
+                    + Arrays.toString(expectedIpAddress));
+            throw new RuntimeException(
+                    "retrieved address not equal to expected address");
+        }
+        System.out.println("retrieved address == "
+                + Arrays.toString(rawIpAddress)
+                + " equal to expected address == "
+                + Arrays.toString(expectedIpAddress));
+    }
+
+    private static void testReverseLookup(String numericHost, String expectedName)
+            throws UnknownHostException {
+        String lookupResult = InetAddress.getByName(numericHost).getHostName();
+        if (!expectedName.equals(lookupResult)) {
+            throw new RuntimeException(
+                String.format(
+                    "reverse lookup of \"%s\" is \"%s\", should be \"%s\"\n",
+                    numericHost, lookupResult, expectedName));
+        }
+    }
+}