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// Copyright (C) 2010 Internet Systems Consortium, Inc. ("ISC")
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.
#include <fstream>
#include <iostream>
#include <string>
#include <vector>
#include <exceptions/exceptions.h>
#include <util/buffer.h>
#include <dns/exceptions.h>
#include <dns/name.h>
#include <dns/message.h>
#include <dns/messagerenderer.h>
#include <dns/opcode.h>
#include <dns/rcode.h>
#include <dns/rrtype.h>
#include <dns/rrclass.h>
#include <dns/question.h>
#include <bench/benchmark_util.h>
using namespace std;
using namespace isc;
using namespace isc::dns;
using namespace isc::util;
namespace isc {
namespace bench {
void
loadQueryData(const char* const input_file, BenchQueries& queries,
const RRClass& qclass, const bool strict)
{
ifstream ifs;
ifs.open(input_file, ios_base::in);
if ((ifs.rdstate() & istream::failbit) != 0) {
isc_throw(BenchMarkError, "failed to load query data file: " +
string(input_file));
}
loadQueryData(ifs, queries, qclass, strict);
ifs.close();
}
void
loadQueryData(istream& input, BenchQueries& queries, const RRClass& qclass,
const bool strict)
{
string line;
unsigned int linenum = 0;
Message query_message(Message::RENDER);
MessageRenderer renderer;
while (getline(input, line), !input.eof()) {
++linenum;
if (input.bad() || input.fail()) {
isc_throw(BenchMarkError,
"Unexpected line in query data file around line " <<
linenum);
}
if (line.empty() || line[0] == '#') {
continue; // skip comment and blank lines
}
istringstream iss(line);
string qname_string, qtype_string;
iss >> qname_string >> qtype_string;
if (iss.bad() || iss.fail()) {
if (strict) {
isc_throw(BenchMarkError,
"load query: unexpected input around line " <<
linenum);
}
continue;
}
// We expect broken lines of data, which will be ignored with a
// warning message.
try {
query_message.clear(Message::RENDER);
query_message.setQid(0);
query_message.setOpcode(Opcode::QUERY());
query_message.setRcode(Rcode::NOERROR());
query_message.addQuestion(Question(Name(qname_string), qclass,
RRType(qtype_string)));
renderer.clear();
query_message.toWire(renderer);
vector<unsigned char> query_data(
static_cast<const unsigned char*>(renderer.getData()),
static_cast<const unsigned char*>(renderer.getData()) +
renderer.getLength());
queries.push_back(query_data);
} catch (const Exception&) {
if (strict) {
isc_throw(BenchMarkError,
"failed to parse/create query around line " <<
linenum);
}
continue;
}
}
}
}
}
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