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/io/File/WinDeviceName.java
+++ b/test/jdk/java/io/File/WinDeviceName.java
@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2006, 2025, 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 6176051 4858457
+   @summary Check whether reserved names are handled correctly on Windows
+   @requires (os.family == "windows")
+ */
+
+import java.io.File;
+import java.io.IOException;
+
+public class WinDeviceName {
+    private static String devnames[] = {
+        "CON", "PRN", "AUX", "NUL", "COM1", "COM2", "COM3", "COM4",
+        "COM5", "COM6", "COM7", "COM8", "COM9", "LPT1", "LPT2",
+        "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", "LPT9",
+        "CLOCK$"
+    };
+    public static void main(String[] args) {
+        String osName = System.getProperty("os.name");
+        for (int i = 0; i < devnames.length; i++) {
+            String names[] = { devnames[i], devnames[i] + ".TXT",
+                               devnames[i].toLowerCase(),
+                               devnames[i].toLowerCase() + ".txt" };
+
+            for (String name : names) {
+                File f = new File(name);
+                if (f.isFile()) {
+                    if ("CLOCK$".equals(devnames[i]) &&
+                        (osName.startsWith("Windows 9") ||
+                         osName.startsWith("Windows Me"))) {
+                        //"CLOCK$" is a reserved device name for NT
+                        continue;
+                    }
+                    throw new RuntimeException("isFile() returns true for " +
+                            "Device name " + devnames[i]);
+                }
+
+                if (!"CLOCK$".equals(devnames[i])) {
+                    try {
+                        System.out.println((new File(name)).getCanonicalPath());
+                    } catch(IOException ie) {
+                        throw new RuntimeException("Fail to get canonical " +
+                                "path for " + name);
+                    }
+                }
+            }
+        }
+    }
+}