/*
 * Copyright (c) 2000, 2013, 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.
/** * 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.
/** * Instantiate a {@code UnixSystem} and load * the native library to access the underlying system information. */
public UnixSystem() { System.loadLibrary("jaas"); getUnixInfo(); }
Get the username for the current Unix user.
Returns:the username for the current Unix user.
/** * 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.
Returns:the UID for the current Unix user.
/** * 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.
Returns:the GID for the current Unix user.
/** * 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.
Returns:the supplementary groups for the current Unix user.
/** * 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(); } }