konogonka/src/main/java/konogonka/Tools/NCA/NCAHeaderTableEntry.java

35 lines
1.2 KiB
Java

package konogonka.Tools.NCA;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.util.Arrays;
public class NCAHeaderTableEntry {
private long mediaStartOffset;
private long mediaEndOffset;
private byte[] unknwn1;
private byte[] unknwn2;
public NCAHeaderTableEntry(byte[] table) throws Exception{
if (table.length < 0x10)
throw new Exception("Section Table size is too small.");
this.mediaStartOffset = convertUnsignedIntBytesToLong(Arrays.copyOfRange(table, 0x0, 0x4));
this.mediaEndOffset = convertUnsignedIntBytesToLong(Arrays.copyOfRange(table, 0x4, 0x8));
this.unknwn1 = Arrays.copyOfRange(table, 0x8, 0xC);
this.unknwn2 = Arrays.copyOfRange(table, 0xC, 0x10);
}
private long convertUnsignedIntBytesToLong(byte[] intBytes){
if (intBytes.length == 4)
return ByteBuffer.wrap(Arrays.copyOf(intBytes, 8)).order(ByteOrder.LITTLE_ENDIAN).getLong();
else
return -1;
}
public long getMediaStartOffset() { return mediaStartOffset; }
public long getMediaEndOffset() { return mediaEndOffset; }
public byte[] getUnknwn1() { return unknwn1; }
public byte[] getUnknwn2() { return unknwn2; }
}