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| 1 | /* | ||
| 2 | * Copyright (c) 2000, 2010, 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. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package com.sun.security.auth.module; | ||
| 27 | |||
| 28 | /** | ||
| 29 | * <p> This class implementation retrieves and makes available Unix | ||
| 30 | * UID/GID/groups information for the current user. | ||
| 31 | * | ||
| 32 | */ | ||
| 33 | public class UnixSystem { | ||
| 34 | |||
| 35 | private native void getUnixInfo(); | ||
| 36 | |||
| 37 | protected String username; | ||
| 38 | protected long uid; | ||
| 39 | protected long gid; | ||
| 40 | protected long[] groups; | ||
| 41 | |||
| 42 | /** | ||
| 43 | * Instantiate a <code>UnixSystem</code> and load | ||
| 44 | * the native library to access the underlying system information. | ||
| 45 | */ | ||
| 46 | public UnixSystem() { | ||
| 47 | System.loadLibrary("jaas_unix"); | ||
| 48 | getUnixInfo(); | ||
| 49 | } | ||
| 50 | |||
| 51 | /** | ||
| 52 | * Get the username for the current Unix user. | ||
| 53 | * | ||
| 54 | * <p> | ||
| 55 | * | ||
| 56 | * @return the username for the current Unix user. | ||
| 57 | */ | ||
| 58 | public String getUsername() { | ||
| 59 | return username; | ||
| 60 | } | ||
| 61 | |||
| 62 | /** | ||
| 63 | * Get the UID for the current Unix user. | ||
| 64 | * | ||
| 65 | * <p> | ||
| 66 | * | ||
| 67 | * @return the UID for the current Unix user. | ||
| 68 | */ | ||
| 69 | public long getUid() { | ||
| 70 | return uid; | ||
| 71 | } | ||
| 72 | |||
| 73 | /** | ||
| 74 | * Get the GID for the current Unix user. | ||
| 75 | * | ||
| 76 | * <p> | ||
| 77 | * | ||
| 78 | * @return the GID for the current Unix user. | ||
| 79 | */ | ||
| 80 | public long getGid() { | ||
| 81 | return gid; | ||
| 82 | } | ||
| 83 | |||
| 84 | /** | ||
| 85 | * Get the supplementary groups for the current Unix user. | ||
| 86 | * | ||
| 87 | * <p> | ||
| 88 | * | ||
| 89 | * @return the supplementary groups for the current Unix user. | ||
| 90 | */ | ||
| 91 | public long[] getGroups() { | ||
| 92 | return groups == null ? null : groups.clone(); | ||
| 93 | } | ||
| 94 | } | ||