1 /*
2  * Copyright (c) 2012, 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 import java.io.File;
25 
26 /**
27  * Utility class used by tests for java.io.File.
28  */
29 
30 class Util {
Util()31     private Util() { }
32 
33     /**
34      * Returns {@code true} if the Java virtual machine is running with
35      * privileges (loosely defined here as have write access to /etc/passwd).
36      */
isPrivileged()37     static boolean isPrivileged() {
38         String osname = System.getProperty("os.name");
39         if (osname.startsWith("Windows"))
40             return false;
41 
42         return (new File("/etc/passwd")).canWrite();
43     }
44 }
45 
46