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// Copyright (C) 2011 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 <config.h>
#include <exceptions/exceptions.h>
#include <dns/exceptions.h>
#include <dns/rdata.h>
#include <dns/rdataclass.h>
#include <dns/rdata/generic/detail/char_string.h>
#include <util/buffer.h>
using namespace std;
using namespace isc::util;
using namespace isc::dns;
// BEGIN_ISC_NAMESPACE
// BEGIN_RDATA_NAMESPACE
class HINFOImpl {
public:
HINFOImpl(const std::string& hinfo_str) {
std::istringstream ss(hinfo_str);
MasterLexer lexer;
lexer.pushSource(ss);
try {
parseHINFOData(lexer);
// Should be at end of data now
if (lexer.getNextToken(MasterToken::QSTRING, true).getType() !=
MasterToken::END_OF_FILE) {
isc_throw(InvalidRdataText,
"Invalid HINFO text format: too many fields.");
}
} catch (const MasterLexer::LexerError& ex) {
isc_throw(InvalidRdataText, "Failed to construct HINFO RDATA from "
<< hinfo_str << "': " << ex.what());
}
}
HINFOImpl(InputBuffer& buffer, size_t rdata_len) {
rdata_len -= detail::bufferToCharString(buffer, rdata_len, cpu);
rdata_len -= detail::bufferToCharString(buffer, rdata_len, os);
if (rdata_len != 0) {
isc_throw(isc::dns::DNSMessageFORMERR, "Error in parsing " <<
"HINFO RDATA: bytes left at end: " <<
static_cast<int>(rdata_len));
}
}
HINFOImpl(MasterLexer& lexer)
{
parseHINFOData(lexer);
}
private:
void
parseHINFOData(MasterLexer& lexer) {
MasterToken token = lexer.getNextToken(MasterToken::QSTRING);
stringToCharString(token.getStringRegion(), cpu);
token = lexer.getNextToken(MasterToken::QSTRING);
stringToCharString(token.getStringRegion(), os);
}
public:
detail::CharString cpu;
detail::CharString os;
};
HINFO::HINFO(const std::string& hinfo_str) : impl_(new HINFOImpl(hinfo_str))
{}
HINFO::HINFO(InputBuffer& buffer, size_t rdata_len) :
impl_(new HINFOImpl(buffer, rdata_len))
{}
HINFO::HINFO(const HINFO& source):
Rdata(), impl_(new HINFOImpl(*source.impl_))
{
}
HINFO::HINFO(MasterLexer& lexer, const Name*,
MasterLoader::Options, MasterLoaderCallbacks&) :
impl_(new HINFOImpl(lexer))
{}
HINFO&
HINFO::operator=(const HINFO& source)
{
impl_.reset(new HINFOImpl(*source.impl_));
return (*this);
}
HINFO::~HINFO() {
}
std::string
HINFO::toText() const {
string result;
result += "\"";
result += detail::charStringToString(impl_->cpu);
result += "\" \"";
result += detail::charStringToString(impl_->os);
result += "\"";
return (result);
}
void
HINFO::toWire(OutputBuffer& buffer) const {
toWireHelper(buffer);
}
void
HINFO::toWire(AbstractMessageRenderer& renderer) const {
toWireHelper(renderer);
}
int
HINFO::compare(const Rdata& other) const {
const HINFO& other_hinfo = dynamic_cast<const HINFO&>(other);
const int cmp = compareCharStrings(impl_->cpu, other_hinfo.impl_->cpu);
if (cmp != 0) {
return (cmp);
}
return (compareCharStrings(impl_->os, other_hinfo.impl_->os));
}
const std::string
HINFO::getCPU() const {
return (detail::charStringToString(impl_->cpu));
}
const std::string
HINFO::getOS() const {
return (detail::charStringToString(impl_->os));
}
template <typename T>
void
HINFO::toWireHelper(T& outputer) const {
outputer.writeData(&impl_->cpu[0], impl_->cpu.size());
outputer.writeData(&impl_->os[0], impl_->os.size());
}
// END_RDATA_NAMESPACE
// END_ISC_NAMESPACE
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