83 lines
3.8 KiB
Java
83 lines
3.8 KiB
Java
/*
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Copyright 2019-2022 Dmitry Isaenko
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This file is part of libKonogonka.
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libKonogonka is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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libKonogonka 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with libKonogonka. If not, see <https://www.gnu.org/licenses/>.
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*/
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package libKonogonka.Tools.RomFs.view;
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import libKonogonka.Converter;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import java.nio.charset.StandardCharsets;
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import java.util.Arrays;
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import static libKonogonka.RainbowDump.formatDecHexString;
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public class DirectoryMetaTablePlainView {
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private final static Logger log = LogManager.getLogger(DirectoryMetaTablePlainView.class);
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// directoryMetadataTableLength must be declared since directoryMetadataTable could be bigger than declared size for encrypted blocks
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public DirectoryMetaTablePlainView(long directoryMetadataTableLength, byte[] directoryMetadataTable){
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int i = 0;
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while (i < directoryMetadataTableLength){
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FolderMeta folderMeta = new FolderMeta();
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folderMeta.parentDirectoryOffset = Converter.getLEint(directoryMetadataTable, i);
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i += 4;
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folderMeta.nextSiblingDirectoryOffset = Converter.getLEint(directoryMetadataTable, i);
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i += 4;
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folderMeta.firstSubdirectoryOffset = Converter.getLEint(directoryMetadataTable, i);
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i += 4;
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folderMeta.firstFileOffset = Converter.getLEint(directoryMetadataTable, i);
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i += 4;
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folderMeta.nextDirectoryOffset = Converter.getLEint(directoryMetadataTable, i);
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i += 4;
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folderMeta.dirNameLength = Converter.getLEint(directoryMetadataTable, i);
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i += 4;
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folderMeta.dirName = new String(Arrays.copyOfRange(directoryMetadataTable, i, i + folderMeta.dirNameLength), StandardCharsets.UTF_8);
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i += getRealNameSize(folderMeta.dirNameLength);
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log.debug(
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"- DIRECTORY -\n" +
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"Offset of Parent Directory (self if Root) " + formatDecHexString(folderMeta.parentDirectoryOffset ) +"\n" +
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"Offset of next Sibling Directory " + formatDecHexString(folderMeta.nextSiblingDirectoryOffset) +"\n" +
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"Offset of first Child Directory (Subdirectory) " + formatDecHexString(folderMeta.firstSubdirectoryOffset ) +"\n" +
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"Offset of first File (in File Metadata Table) " + formatDecHexString(folderMeta.firstFileOffset ) +"\n" +
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"Offset of next Directory in the same Hash Table bucket " + formatDecHexString(folderMeta.nextDirectoryOffset ) +"\n" +
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"Name Length " + formatDecHexString(folderMeta.dirNameLength ) +"\n" +
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"Name Length (rounded up to multiple of 4) " + folderMeta.dirName + "\n"
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);
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}
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}
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private int getRealNameSize(int value){
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if (value % 4 == 0)
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return value;
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return value + 4 - value % 4;
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}
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private static class FolderMeta {
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int parentDirectoryOffset;
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int nextSiblingDirectoryOffset;
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int firstSubdirectoryOffset;
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int firstFileOffset;
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int nextDirectoryOffset;
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int dirNameLength;
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String dirName;
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}
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}
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