void rrFromWire(DNSInput in) throws IOException {
if (in.remaining() > 0) options = new ArrayList();
while (in.remaining() > 0) {
int code = in.readU16();
int len = in.readU16();
byte[] data = in.readByteArray(len);
options.add(new Option(code, data));
}
}
static Record fromWire(DNSInput in, int section, boolean isUpdate) throws IOException {
int type, dclass;
long ttl;
int length;
Name name;
Record rec;
name = new Name(in);
type = in.readU16();
dclass = in.readU16();
if (section == Section.QUESTION) return newRecord(name, type, dclass);
ttl = in.readU32();
length = in.readU16();
if (length == 0 && isUpdate) return newRecord(name, type, dclass, ttl);
rec = newRecord(name, type, dclass, ttl, length, in);
return rec;
}