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// Copyright (C) 2010-2016 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <string>
#include <ostream>
#include <exceptions/exceptions.h>
#include <dns/opcode.h>
using namespace std;
namespace isc {
namespace dns {
namespace {
const char *opcodetext[] = {
"QUERY",
"IQUERY",
"STATUS",
"RESERVED3",
"NOTIFY",
"UPDATE",
"RESERVED6",
"RESERVED7",
"RESERVED8",
"RESERVED9",
"RESERVED10",
"RESERVED11",
"RESERVED12",
"RESERVED13",
"RESERVED14",
"RESERVED15"
};
// OPCODEs are 4-bit values. So 15 is the highest code.
const uint8_t MAX_OPCODE = 15;
}
Opcode::Opcode(const uint8_t code) : code_(static_cast<CodeValue>(code)) {
if (code > MAX_OPCODE) {
isc_throw(OutOfRange,
"DNS Opcode is too large to construct: "
<< static_cast<unsigned>(code));
}
}
string
Opcode::toText() const {
return (opcodetext[code_]);
}
ostream&
operator<<(std::ostream& os, const Opcode& opcode) {
return (os << opcode.toText());
}
}
}
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