ipaddress.cpp

查看局域网的信息,类似网上邻居的功能,例如查看哪台计算机在线等

/*    ipaddress.cpp
 *
 *    Copyright (c) 1998, 1999, Alexander Neundorf, Lukas Pustina
 *    [e-mail]
 *    [e-mail]
 *
 *    You may distribute under the terms of the GNU General Public
 *    License as specified in the COPYING file.
 *
 *    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.
 *
 */

#include "ipaddress.h"

IPAddress::IPAddress()
{
};

IPAddress::IPAddress(const MyString& ip)
{
   if (ip.length()==0)
      s="0.0.0.0";
   else s=ip;
   i=string2Int(s);
   n=string2Struct(s);
};

IPAddress::IPAddress(unsigned int ip)
{
   i=ip;
   s=int2String(i);
   n.s_addr=htonl(i);
   //n=string2Struct(s);
};

IPAddress::IPAddress(struct in_addr ip)
{
   n=ip;
   s=struct2String(n);
   i=string2Int(s);
};

IPAddress::IPAddress(int b1, int b2, int b3, int b4)
{
   char tmp[30];
   sprintf(tmp,"%i.%i.%i.%i",b1,b2,b3,b4);
   s=tmp;
   i=string2Int(s);
   n=string2Struct(s);
};


MyString IPAddress::int2String(unsigned int ip)
{
   MyString tmp("");
   struct in_addr addr;
   addr.s_addr=htonl(ip);
   tmp=inet_ntoa(addr);
   return tmp;
};

MyString IPAddress::struct2String(struct in_addr ip)
{
   return MyString(inet_ntoa(ip));
};

unsigned int IPAddress::string2Int(MyString ip)
{
   struct in_addr addr;
   inet_aton(ip.c_str(),&addr);
//   cout<<addr.s_addr<<endl;
   return ntohl(addr.s_addr);
};

struct in_addr IPAddress::string2Struct(MyString ip)
{
   struct in_addr tmp;
   inet_aton(ip.c_str(),&tmp);
   return tmp;
};

void IPAddress::print()
{
   cout<<"address as string: "<<s<<endl;
   cout<<"address in host byte order:    "<<ios::hex<<i<<ios::dec<<endl;
   cout<<"address in network byte order: "<<ios::hex<<n.s_addr<<ios::dec<<endl;
};