/*
* Copyright 2012 Future Systems
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.krakenapps.dns.rr;
import java.nio.ByteBuffer;
import org.krakenapps.dns.DnsLabelCodec;
import org.krakenapps.dns.DnsResourceRecord;
public class PTR extends DnsResourceRecord {
private String domain;
public static DnsResourceRecord decode(ByteBuffer bb, boolean isQuestion) {
PTR ptr = new PTR();
if (isQuestion)
return ptr;
// skip rdlen
bb.getShort();
ptr.domain = DnsLabelCodec.decode(bb);
return ptr;
}
@Override
public void encode(ByteBuffer bb) {
ByteBuffer rdata = ByteBuffer.allocate(domain.length() * 3);
DnsLabelCodec.encode(rdata, domain);
rdata.flip();
bb.putShort((short) rdata.limit());
bb.put(rdata);
}
@Override
public String toString() {
if (domain != null)
return "PTR " + domain;
return "PTR " + name;
}
}