linux/nhostaddress.h

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// LICENSE: (Please see the file COPYING for details)
//
// NUS - Nemesis Utilities System: A C++ application development framework 
// Copyright (C) 2006, 2008 Otavio Rodolfo Piske
//
//  This file is part of NUS
//
//  This library is free software; you can redistribute it and/or
//  modify it under the terms of the GNU Lesser General Public
//  License as published by the Free Software Foundation version 2.1
//  of the License.
//
//  This library is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//  Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with this library; if not, write to the Free Software
//  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//
#ifndef NHOSTADDRESS_H
#define NHOSTADDRESS_H

#include "ndefs.h"
#include "nobject.h"
#include "nstring.h"
#include "nlist.h"
#include "nbaseexceptions.h"
#include "nnetworkexception.h"

#include <netdb.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <climits>

class NHostAddress: public NObject {
      public:
            NHostAddress(void);

            NHostAddress(const NString &addr);

            NHostAddress(const NHostAddress &addr);

            NHostAddress(const sockaddr *addr);

            void clear(void);

            void setAddress(nuint32 ip);

            void setAddress(const NString &addr);

            void setAddress(const sockaddr *sock);

            nuint32 resolve(void) const;

            NString toString(void) const;
            
            static NString toString(nuint32 ip);

            NString address(void) const;

            NList<NString> aliases(void);

            NList<nuint32> addresses(void);
            
            bool isNull(void) const;

            bool isLocalhost(void) const;

            NHostAddress &operator=(const NHostAddress &rhs);

            NHostAddress &operator=(const NString &rhs);

      private:
            NString m_addr;
            mutable struct hostent m_host;
            
            void throwErrorByCode(int herr) const;
            
};

#endif // NHOSTADDRESS_H

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