private static Record newRecord(
Name name, int type, int dclass, long ttl, int length, DNSInput in) throws IOException {
Record rec;
int recstart;
rec = getEmptyRecord(name, type, dclass, ttl, in != null);
if (in != null) {
if (in.remaining() < length) throw new WireParseException("truncated record");
in.setActive(length);
rec.rrFromWire(in);
if (in.remaining() > 0) throw new WireParseException("invalid record length");
in.clearActive();
}
return rec;
}
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;
}