Method addAnswer

src/main/java/core/org/xbill/DNS/jnamed.java:211–322

(Message response, Name name, int type, int dclass,
	  int iterations, int flags)

}

byte
addAnswer(Message response, Name name, int type, int dclass,
	  int iterations, int flags)
{
	SetResponse sr;
	byte rcode = Rcode.NOERROR;

	if (iterations > 6)
		return Rcode.NOERROR;

	if (type == Type.SIG || type == Type.RRSIG) {
		type = Type.ANY;
		flags |= FLAG_SIGONLY;
	}

	Zone zone = findBestZone(name);
	if (zone != null)
		sr = zone.findRecords(name, type);
	else {
		Cache cache = getCache(dclass);
		sr = cache.lookupRecords(name, type, Credibility.NORMAL);
	}

	if (sr.isUnknown()) {
		addCacheNS(response, getCache(dclass), name);
	}
	if (sr.isNXDOMAIN()) {
		response.getHeader().setRcode(Rcode.NXDOMAIN);
		if (zone != null) {
			addSOA(response, zone);
			if (iterations == 0)
				response.getHeader().setFlag(Flags.AA);
		}
		rcode = Rcode.NXDOMAIN;
	}
	else if (sr.isNXRRSET()) {
		if (zone != null) {
			addSOA(response, zone);
			if (iterations == 0)
				response.getHeader().setFlag(Flags.AA);
		}
	}
	else if (sr.isDelegation()) {
		RRset nsRecords = sr.getNS();
		addRRset(nsRecords.getName(), response, nsRecords,
			 Section.AUTHORITY, flags);
	}
	else if (sr.isCNAME()) {
		CNAMERecord cname = sr.getCNAME();
		RRset rrset = new RRset(cname);
		addRRset(name, response, rrset, Section.ANSWER, flags);
		if (zone != null && iterations == 0)
			response.getHeader().setFlag(Flags.AA);
		rcode = addAnswer(response, cname.getTarget(),
				  type, dclass, iterations + 1, flags);
	}
	else if (sr.isDNAME()) {
		DNAMERecord dname = sr.getDNAME();