| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.cts.verifier.os; |
| |
| /** Bits and pieces copied from hidden API of android.os.FileUtils. */ |
| public class FileUtils { |
| |
| private static final int S_IFSOCK = 0140000; |
| private static final int S_IFLNK = 0120000; |
| private static final int S_IFREG = 0100000; |
| private static final int S_IFBLK = 0060000; |
| private static final int S_IFDIR = 0040000; |
| private static final int S_IFCHR = 0020000; |
| private static final int S_IFIFO = 0010000; |
| |
| private static final int S_ISUID = 0004000; |
| private static final int S_ISGID = 0002000; |
| private static final int S_ISVTX = 0001000; |
| |
| private static final int S_IRUSR = 00400; |
| private static final int S_IWUSR = 00200; |
| private static final int S_IXUSR = 00100; |
| |
| private static final int S_IRGRP = 00040; |
| private static final int S_IWGRP = 00020; |
| private static final int S_IXGRP = 00010; |
| |
| private static final int S_IROTH = 00004; |
| private static final int S_IWOTH = 00002; |
| private static final int S_IXOTH = 00001; |
| |
| static { |
| System.loadLibrary("ctsverifier_jni"); |
| } |
| |
| public static class FileStatus { |
| |
| private int dev; |
| private int ino; |
| private int mode; |
| private int nlink; |
| private int uid; |
| private int gid; |
| private int rdev; |
| private long size; |
| private int blksize; |
| private long blocks; |
| private long atime; |
| private long mtime; |
| private long ctime; |
| private boolean executable; |
| |
| public int getUid() { |
| return uid; |
| } |
| |
| public int getGid() { |
| return gid; |
| } |
| |
| public int getMode() { |
| return mode; |
| } |
| |
| public boolean isDirectory() { |
| return hasModeFlag(mode, S_IFDIR); |
| } |
| |
| public boolean isSymbolicLink() { |
| return hasModeFlag(mode, S_IFLNK); |
| } |
| |
| public boolean isSetUid() { |
| return hasModeFlag(mode, S_ISUID); |
| } |
| |
| public boolean isSetGid() { |
| return hasModeFlag(mode, S_ISGID); |
| } |
| |
| public boolean isExecutableByCTS() { |
| return executable; |
| } |
| } |
| |
| /** |
| * @param path of the file to stat |
| * @param status object to set the fields on |
| * @param statLinks or don't stat links (lstat vs stat) |
| * @return whether or not we were able to stat the file |
| */ |
| public native static boolean getFileStatus(String path, FileStatus status, boolean statLinks); |
| |
| public native static String getUserName(int uid); |
| |
| public native static String getGroupName(int gid); |
| |
| /** Display the file's mode like "ls -l" does. */ |
| public static String getFormattedPermissions(int mode) { |
| StringBuilder permissions = new StringBuilder("-rwxrwxrwx"); |
| |
| int[] typeMasks = {S_IFSOCK, S_IFLNK, S_IFREG, S_IFBLK, S_IFDIR, S_IFCHR, S_IFIFO}; |
| char[] typeSymbols = {'s', 'l', '-', 'b', 'd', 'c', 'p'}; |
| for (int i = 0; i < typeMasks.length; i++) { |
| if (hasModeFlag(mode, typeMasks[i])) { |
| permissions.setCharAt(0, typeSymbols[i]); |
| break; |
| } |
| } |
| |
| int[] masks = {S_IRUSR, S_IWUSR, S_IXUSR, S_IRGRP, S_IWGRP, S_IXGRP, |
| S_IROTH, S_IWOTH, S_IXOTH}; |
| for (int i = 0; i < masks.length; i++) { |
| if (!hasModeFlag(mode, masks[i])) { |
| permissions.setCharAt(1 + i, '-'); |
| } |
| } |
| |
| |
| if (hasModeFlag(mode, S_ISUID)) { |
| permissions.setCharAt(3, hasModeFlag(mode, S_IXUSR) ? 's' : 'S'); |
| } |
| |
| if (hasModeFlag(mode, S_ISGID)) { |
| permissions.setCharAt(6, hasModeFlag(mode, S_IXGRP) ? 's' : 'S'); |
| } |
| |
| if (hasModeFlag(mode, S_ISVTX)) { |
| permissions.setCharAt(9, hasModeFlag(mode, S_IXOTH) ? 't' : 'T'); |
| } |
| |
| return permissions.toString(); |
| } |
| |
| private static boolean hasModeFlag(int mode, int flag) { |
| return (mode & flag) == flag; |
| } |
| } |