original

[gb-231r1-is01/GB_2.3_IS01.git] / cts / apps / CtsVerifier / src / com / android / cts / verifier / os / FileUtils.java

diff --git a/cts/apps/CtsVerifier/src/com/android/cts/verifier/os/FileUtils.java b/cts/apps/CtsVerifier/src/com/android/cts/verifier/os/FileUtils.java
new file mode 100644 (file)
index 0000000..c767e7a
--- /dev/null
+++ b/cts/apps/CtsVerifier/src/com/android/cts/verifier/os/FileUtils.java
@@ -0,0 +1,147 @@
+/*
+ * 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;
+
+        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);
+        }
+    }
+
+    /**
+     * @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;
+    }
+}