dns_packet.h

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/*
**  ClanLib SDK
**  Copyright (c) 1997-2009 The ClanLib Team
**
**  This software is provided 'as-is', without any express or implied
**  warranty.  In no event will the authors be held liable for any damages
**  arising from the use of this software.
**
**  Permission is granted to anyone to use this software for any purpose,
**  including commercial applications, and to alter it and redistribute it
**  freely, subject to the following restrictions:
**
**  1. The origin of this software must not be misrepresented; you must not
**     claim that you wrote the original software. If you use this software
**     in a product, an acknowledgment in the product documentation would be
**     appreciated but is not required.
**  2. Altered source versions must be plainly marked as such, and must not be
**     misrepresented as being the original software.
**  3. This notice may not be removed or altered from any source distribution.
**
**  Note: Some of the libraries ClanLib may link to may have additional
**  requirements or restrictions.
**
**  File Author(s):
**
**    Magnus Norddahl
*/


#pragma once

#include "../api_network.h"
#include "../../Core/System/sharedptr.h"
#include "../../Core/Text/string_types.h"

class CL_DataBuffer;
class CL_DNSResourceRecord;
class CL_DNSPacket_Impl;

class CL_API_NETWORK CL_DNSPacket
{

public:
        CL_DNSPacket();

        CL_DNSPacket(const CL_DataBuffer &data);

        CL_DNSPacket(
                int query_id,
                int opcode,
                bool recursion_desired,
                const CL_String &question_name,
                int question_type,
                int question_class);

        ~CL_DNSPacket();


public:
        const CL_DataBuffer &get_data() const;

        unsigned short get_query_id() const;

        bool is_query() const;

        bool is_response() const;

        enum Opcode
        {
                opcode_query          = 0,
                opcode_inverse_query  = 1,
                opcode_status         = 2
        };

        int get_opcode() const;

        bool is_authoriative_answer() const;

        bool is_truncated() const;

        bool is_recursion_desired() const;

        bool is_recursion_available() const;

        enum ResponseCode
        {
                response_ok               = 0,
                response_format_error     = 1,
                response_server_failure   = 2,
                response_name_error       = 3,
                response_not_implemented  = 4,
                response_refused          = 5
        };

        int get_response_code() const;

        int get_question_count() const;

        int get_answer_count() const;

        int get_nameserver_count() const;

        int get_additional_count() const;

        CL_String get_question_name(int index) const;

        int get_question_type(int index) const;

        int get_question_class(int index) const;

        CL_DNSResourceRecord get_answer(int index) const;

        CL_DNSResourceRecord get_nameserver(int index) const;

        CL_DNSResourceRecord get_additional(int index) const;


public:

        void set_data(const CL_DataBuffer &data);

        void set_query_id(unsigned short query_id);


private:
        CL_SharedPtr<CL_DNSPacket_Impl> impl;
};

---