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/*-
* Copyright (C) 2006 Erik Larsson
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
package org.catacombae.rarx;
import java.io.PrintStream;
public class ProtectedHeader extends RARHeader {
private final byte[] dataSize = new byte[4];
private final byte[] unknownData;
public ProtectedHeader(byte[] data, int offset) {
super(data, offset);
System.arraycopy(data, super.getSize(), dataSize, 0, 4);
unknownData = new byte[getHeadSize()-(super.getSize()+4)];
System.arraycopy(data, super.getSize()+4, unknownData, 0, unknownData.length);
validateData();
}
public int getSize() {
return _getSize();
}
private int _getSize() {
return super.getSize()+dataSize.length+unknownData.length;
}
public void validateData() {
super.validateData();
if(getHeadType() != PROTECT_HEAD)
throw new InvalidDataException("Incorrect head type! (headType=" + getHeadType() + ")");
}
public byte[] getHeaderData() {
byte[] outData = new byte[_getSize()];
byte[] superData = super.getHeaderData();
System.arraycopy(superData, 0, outData, 0, superData.length);
System.arraycopy(dataSize, 0, outData, superData.length, dataSize.length);
System.arraycopy(unknownData, 0, outData, superData.length+dataSize.length, unknownData.length);
return outData;
}
public long getDataSize() {
return Util.readIntLE(dataSize, 0) & 0xFFFFFFFFL;
}
public void print(PrintStream ps, String prefix) {
System.out.println("Protected header:");
printFields(ps, prefix);
}
}
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