如何取本机IP地址列表

// GetIplist.cpp : Defines the entry point for the console application.

//

// 程序功能：取出本机的所有IP，保存为一个字符串列表

// 作者：someone(阿风)

// windows xp + sp2 , vc6 + sp5编译通过

//

#include <iostream>

using std::cin;

using std::cout;

using std::cerr;

using std::endl;

#include <list>

using std::list;

#include <string>

using std::string;

#include <winsock2.h>

#pragma comment( lib, "ws2_32.lib" )

bool GetIpList( list<string> &r_iplist )

{

WORD wVersionRequested;

WSADATA wsaData;

int err;

wVersionRequested = MAKEWORD( 2, 2 );

err = WSAStartup( wVersionRequested, &wsaData );

if ( err != 0 )

{

cout << "WSAStartup failed !" << endl;

return false;

}

char szhn[256];

int nStatus = gethostname(szhn, sizeof(szhn));

if (nStatus == SOCKET_ERROR )

{

cout << "gethostname failed, Error code: " << WSAGetLastError() << endl;

return false;

}

HOSTENT *host = gethostbyname(szhn);

if (host != NULL)

{

for ( int i=0; ; i++ )

{

r_iplist.push_back( inet_ntoa( *(IN_ADDR*)host->h_addr_list[i] ) ) ;

if ( host->h_addr_list[i] + host->h_length >= host->h_name )

break;

}

}

WSACleanup();

return true;

}

int main(int argc, char *argv[])

{

list<string> iplist;

std::list<string>::iterator ip;

if ( !GetIpList( iplist ) )

{

cout << "Get ip list failed !" << endl;

return -1;

}

cout << "IP list :" << endl;

for ( ip = iplist.begin(); ip != iplist.end(); ip++ )

{

cout << " " << *ip << endl;

}

return 0;

}