* remove replaced file
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464fccd3d5
commit
8e1ba28bbf
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@ -1,100 +0,0 @@
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/* Copyright (c) 2014 Reinhard Pointner, All Rights Reserved
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*/
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package net.filebot.mac.xattr;
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import java.nio.ByteBuffer;
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import java.nio.charset.Charset;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import com.sun.jna.Memory;
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import com.sun.jna.Pointer;
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public class XAttrUtil {
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public static List<String> listXAttr(String path) {
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// get required buffer size
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long bufferLength = XAttr.INSTANCE.listxattr(path, Pointer.NULL, 0, 0);
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if (bufferLength < 0)
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return null;
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if (bufferLength == 0)
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return new ArrayList<String>(0);
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Memory valueBuffer = new Memory(bufferLength);
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long valueLength = XAttr.INSTANCE.listxattr(path, valueBuffer, bufferLength, 0);
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if (valueLength < 0)
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return null;
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return decodeStringSequence(valueBuffer.getByteBuffer(0, valueLength));
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}
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public static String getXAttr(String path, String name) {
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// get required buffer size
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long bufferLength = XAttr.INSTANCE.getxattr(path, name, Pointer.NULL, 0, 0, 0);
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if (bufferLength < 0)
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return null;
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Memory valueBuffer = new Memory(bufferLength);
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long valueLength = XAttr.INSTANCE.getxattr(path, name, valueBuffer, bufferLength, 0, 0);
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if (valueLength < 0)
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return null;
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return decodeString(valueBuffer.getByteBuffer(0, valueLength - 1));
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}
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public static int setXAttr(String path, String name, String value) {
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Memory valueBuffer = encodeString(value);
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return XAttr.INSTANCE.setxattr(path, name, valueBuffer, valueBuffer.size(), 0, 0);
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}
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public static int removeXAttr(String path, String name) {
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return XAttr.INSTANCE.removexattr(path, name, 0);
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}
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protected static Memory encodeString(String s) {
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// create NULL-terminated UTF-8 String
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byte[] bb = s.getBytes(Charset.forName("UTF-8"));
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Memory valueBuffer = new Memory(bb.length + 1);
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valueBuffer.write(0, bb, 0, bb.length);
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valueBuffer.setByte(valueBuffer.size() - 1, (byte) 0);
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return valueBuffer;
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}
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protected static String decodeString(ByteBuffer bb) {
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return Charset.forName("UTF-8").decode(bb).toString();
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}
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protected static List<String> decodeStringSequence(ByteBuffer bb) {
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List<String> names = new ArrayList<String>();
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bb.mark(); // first key starts from here
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while (bb.hasRemaining()) {
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if (bb.get() == 0) {
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ByteBuffer nameBuffer = (ByteBuffer) bb.duplicate().limit(bb.position() - 1).reset();
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if (nameBuffer.hasRemaining()) {
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names.add(decodeString(nameBuffer));
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}
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bb.mark(); // next key starts from here
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}
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}
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return names;
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}
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}
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