Inet4Address.h

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// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4; -*-
// vim: set shiftwidth=4 softtabstop=4 expandtab:
/*
 ********************************************************************
 ** NIDAS: NCAR In-situ Data Acquistion Software
 **
 ** 2006, Copyright University Corporation for Atmospheric Research
 **
 ** This program is free software; you can redistribute it and/or modify
 ** it under the terms of the GNU General Public License as published by
 ** the Free Software Foundation; either version 2 of the License, or
 ** (at your option) any later version.
 **
 ** This program 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 General Public License for more details.
 **
 ** The LICENSE.txt file accompanying this software contains
 ** a copy of the GNU General Public License. If it is not found,
 ** write to the Free Software Foundation, Inc.,
 ** 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 **
 ********************************************************************
*/
 
#ifndef NIDAS_UTIL_INET4ADDRESS
#define NIDAS_UTIL_INET4ADDRESS
 
#include "UnknownHostException.h"
#include "ThreadSupport.h"
 
#include <arpa/inet.h>
 
#include <string>
#include <list>
#include <map>
 
namespace nidas { namespace util {
 
class Inet4Address {
public:
    static std::list<Inet4Address> getAllByName(const std::string& hostname);
 
    static Inet4Address getByName(const std::string& hostname);
 
    static std::string getHostName(const Inet4Address& addr);
 
    Inet4Address();
 
    Inet4Address(const struct in_addr*);
 
    Inet4Address(unsigned int addr);
 
    std::string getHostAddress() const;
 
    std::string getHostName() const throw();
 
    const struct in_addr* getInAddrPtr() const { return &_inaddr; }
 
    const struct in_addr getInAddr() const { return _inaddr; }
 
    bool operator < (const Inet4Address& x) const {
        return ntohl(_inaddr.s_addr) < ntohl(x._inaddr.s_addr);
    }
 
    bool operator == (const Inet4Address& x) const {
        return _inaddr.s_addr == x._inaddr.s_addr;
    }
 
    bool operator != (const Inet4Address& x) const {
        return _inaddr.s_addr != x._inaddr.s_addr;
    }
 
    bool isMultiCastAddress() const {
        return (ntohl(_inaddr.s_addr) & 0xf0000000L) == 0xe0000000L;
    }
 
    int bitsMatch(const Inet4Address& x) const throw();
 
protected:
 
    struct in_addr _inaddr;
 
};
 
}}  // namespace nidas namespace util
 
#endif