1 /*
   2  * Copyright (c) 2006, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /* @test
  25    @bug 6176051 4858457
  26    @summary Check whether reserved names are handled correctly on Windows
  27  */
  28 
  29 import java.io.File;
  30 import java.io.IOException;
  31 
  32 public class WinDeviceName {
  33     private static String devnames[] = {
  34         "CON", "PRN", "AUX", "NUL", "COM1", "COM2", "COM3", "COM4",
  35         "COM5", "COM6", "COM7", "COM8", "COM9", "LPT1", "LPT2",
  36         "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", "LPT9",
  37         "CLOCK$"
  38     };
  39     public static void main(String[] args) {
  40         String osName = System.getProperty("os.name");
  41         if (!osName.startsWith("Windows")) {
  42             return;
  43         }
  44 
  45         for (int i = 0; i < devnames.length; i++) {
  46             String names[] = { devnames[i], devnames[i] + ".TXT",
  47                                devnames[i].toLowerCase(),
  48                                devnames[i].toLowerCase() + ".txt" };
  49 
  50             for (String name : names) {
  51                 File f = new File(name);
  52                 if (f.isFile()) {
  53                     if ("CLOCK$".equals(devnames[i]) &&
  54                         (osName.startsWith("Windows 9") ||
  55                          osName.startsWith("Windows Me"))) {
  56                         //"CLOCK$" is a reserved device name for NT
  57                         continue;
  58                     }
  59                     throw new RuntimeException("isFile() returns true for " +
  60                             "Device name " + devnames[i]);
  61                 }
  62 
  63                 if (!"CLOCK$".equals(devnames[i])) {
  64                     try {
  65                         System.out.println((new File(name)).getCanonicalPath());
  66                     } catch(IOException ie) {
  67                         throw new RuntimeException("Fail to get canonical " +
  68                                 "path for " + name);
  69                     }
  70                 }
  71             }
  72         }
  73     }
  74 }