private void validate() throws IOException {
RRset rrset = (RRset) findExactSet(origin, Type.SOA);
if (rrset == null || rrset.size() != 1)
throw new IOException(origin + ": exactly 1 SOA must be specified");
Iterator it = rrset.rrs();
SOA = (SOARecord) it.next();
NS = (RRset) findExactSet(origin, Type.NS);
if (NS == null) throw new IOException(origin + ": no NS set specified");
}
/**
* Removes a record from the Zone
*
* @param r The record to be removed
* @see Record
*/
public void removeRecord(Record r) {
Name name = r.getName();
short type = r.getRRsetType();
RRset rrset = (RRset) findExactSet(name, type);
if (rrset != null) {
rrset.deleteRR(r);
if (rrset.size() == 0) removeSet(name, type, rrset);
}
}
/**
* Removes a record from the Zone
*
* @param r The record to be removed
* @see Record
*/
public void removeRecord(Record r) {
Name name = r.getName();
int rtype = r.getRRsetType();
synchronized (this) {
RRset rrset = findRRset(name, rtype);
if (rrset == null) return;
rrset.deleteRR(r);
if (rrset.size() == 0) removeRRset(name, rtype);
}
}
private void validate() throws IOException {
originNode = exactName(origin);
if (originNode == null) throw new IOException(origin + ": no data specified");
RRset rrset = oneRRset(originNode, Type.SOA);
if (rrset == null || rrset.size() != 1)
throw new IOException(origin + ": exactly 1 SOA must be specified");
Iterator it = rrset.rrs();
SOA = (SOARecord) it.next();
NS = oneRRset(originNode, Type.NS);
if (NS == null) throw new IOException(origin + ": no NS set specified");
}
/**
* Creates an array containing fields of the SIG record and the RRsets to be signed/verified.
*
* @param sig The SIG record used to sign/verify the rrset.
* @param rrset The data to be signed/verified.
* @return The data to be cryptographically signed or verified.
*/
public static byte[] digestRRset(SIGRecord sig, RRset rrset) {
DataByteOutputStream out = new DataByteOutputStream();
digestSIG(out, sig);
int size = rrset.size();
byte[][] records = new byte[size][];
Iterator it = rrset.rrs();
Name name = rrset.getName();
Name wild = null;
if (name.labels() > sig.getLabels()) wild = name.wild(name.labels() - sig.getLabels());
while (it.hasNext()) {
Record rec = (Record) it.next();
if (wild != null) rec = rec.withName(wild);
records[--size] = rec.toWireCanonical();
}
Arrays.sort(records);
for (int i = 0; i < records.length; i++) out.writeArray(records[i]);
return out.toByteArray();
}
public static Record[] getRecords(String namestr, short type, short dclass, byte cred) {
Message query;
Message response;
Record question;
Record[] answers;
int answerCount = 0, i = 0;
Enumeration e;
Name name = new Name(namestr);
/*System.out.println("lookup of " + name + " " + Type.string(type));*/
if (!Type.isRR(type) && type != Type.ANY) return null;
if (res == null) {
try {
eres = new ExtendedResolver();
} catch (UnknownHostException uhe) {
System.out.println("Failed to initialize resolver");
System.exit(-1);
}
}
if (cache == null) cache = new Cache();
CacheResponse cached = cache.lookupRecords(name, type, dclass, cred);
/*System.out.println(cached);*/
if (cached.isSuccessful()) {
RRset rrset = cached.answer();
answerCount = rrset.size();
e = rrset.rrs();
} else if (cached.isNegative()) {
answerCount = 0;
e = null;
} else {
question = Record.newRecord(name, type, dclass);
query = Message.newQuery(question);
if (res != null) response = res.send(query);
else response = eres.send(query);
short rcode = response.getHeader().getRcode();
if (rcode == Rcode.NOERROR || rcode == Rcode.NXDOMAIN) cache.addMessage(response);
if (rcode != Rcode.NOERROR) return null;
e = response.getSection(Section.ANSWER);
while (e.hasMoreElements()) {
Record r = (Record) e.nextElement();
if (matchType(r.getType(), type)) answerCount++;
}
e = response.getSection(Section.ANSWER);
}
if (answerCount == 0) return null;
answers = new Record[answerCount];
while (e.hasMoreElements()) {
Record r = (Record) e.nextElement();
if (matchType(r.getType(), type)) answers[i++] = r;
}
return answers;
}
