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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/dns/record_parsed.h"
#include <utility>
#include "base/logging.h"
#include "net/dns/dns_response.h"
#include "net/dns/record_rdata.h"
namespace net {
RecordParsed::RecordParsed(const std::string& name,
uint16_t type,
uint16_t klass,
uint32_t ttl,
scoped_ptr<const RecordRdata> rdata,
base::Time time_created)
: name_(name),
type_(type),
klass_(klass),
ttl_(ttl),
rdata_(std::move(rdata)),
time_created_(time_created) {}
RecordParsed::~RecordParsed() {
}
// static
scoped_ptr<const RecordParsed> RecordParsed::CreateFrom(
DnsRecordParser* parser,
base::Time time_created) {
DnsResourceRecord record;
scoped_ptr<const RecordRdata> rdata;
if (!parser->ReadRecord(&record))
return scoped_ptr<const RecordParsed>();
switch (record.type) {
case ARecordRdata::kType:
rdata = ARecordRdata::Create(record.rdata, *parser);
break;
case AAAARecordRdata::kType:
rdata = AAAARecordRdata::Create(record.rdata, *parser);
break;
case CnameRecordRdata::kType:
rdata = CnameRecordRdata::Create(record.rdata, *parser);
break;
case PtrRecordRdata::kType:
rdata = PtrRecordRdata::Create(record.rdata, *parser);
break;
case SrvRecordRdata::kType:
rdata = SrvRecordRdata::Create(record.rdata, *parser);
break;
case TxtRecordRdata::kType:
rdata = TxtRecordRdata::Create(record.rdata, *parser);
break;
case NsecRecordRdata::kType:
rdata = NsecRecordRdata::Create(record.rdata, *parser);
break;
default:
DVLOG(1) << "Unknown RData type for received record: " << record.type;
return scoped_ptr<const RecordParsed>();
}
if (!rdata.get())
return scoped_ptr<const RecordParsed>();
return scoped_ptr<const RecordParsed>(
new RecordParsed(record.name, record.type, record.klass, record.ttl,
std::move(rdata), time_created));
}
bool RecordParsed::IsEqual(const RecordParsed* other, bool is_mdns) const {
DCHECK(other);
uint16_t klass = klass_;
uint16_t other_klass = other->klass_;
if (is_mdns) {
klass &= dns_protocol::kMDnsClassMask;
other_klass &= dns_protocol::kMDnsClassMask;
}
return name_ == other->name_ &&
klass == other_klass &&
type_ == other->type_ &&
rdata_->IsEqual(other->rdata_.get());
}
}
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