/* * Copyright (c) 2000, 2010, 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. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * 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. */ package com.sun.security.auth.module; /** *
This class implementation retrieves and makes available Unix
* UID/GID/groups information for the current user.
*
*/
public class UnixSystem {
private native void getUnixInfo();
protected String username;
protected long uid;
protected long gid;
protected long[] groups;
/**
* Instantiate a UnixSystem
and load
* the native library to access the underlying system information.
*/
public UnixSystem() {
System.loadLibrary("jaas_unix");
getUnixInfo();
}
/**
* Get the username for the current Unix user.
*
*
* * @return the username for the current Unix user. */ public String getUsername() { return username; } /** * Get the UID for the current Unix user. * *
* * @return the UID for the current Unix user. */ public long getUid() { return uid; } /** * Get the GID for the current Unix user. * *
* * @return the GID for the current Unix user. */ public long getGid() { return gid; } /** * Get the supplementary groups for the current Unix user. * *
* * @return the supplementary groups for the current Unix user. */ public long[] getGroups() { return groups == null ? null : groups.clone(); } }