@Override
	int readLength(Buffer buf, int offset) throws IndexOutOfBoundsException, IOException {
		int len = buf.getInt(offset);
		return (len < 0 ? 0 : len) + 4;
	}
Construct a binary data field with an initial value of data.
@param data initial value
@param immutable true if field value is immutable
Ghidra/Framework/DB/src/main/java/db/BinaryField.java