Hi; How can I achieve the functionality given in ipconfig on Windows in VC++? I need to get local ip info of the machine, primary ip vs.
A:
Well people, formerly I could not find something useful but I found the solution on this link.
// GetLocalIP.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <winsock2.h>
int _tmain(int argc, _TCHAR* argv[])
{
// Add 'ws2_32.lib' to your linker options
WSADATA WSAData;
// Initialize winsock dll
if(::WSAStartup(MAKEWORD(1, 0), &WSAData))
{
// Error handling
}
// Get local host name
char szHostName[128] = "";
if(::gethostname(szHostName, sizeof(szHostName)))
{
// Error handling -> call 'WSAGetLastError()'
}
// Get local IP addresses
struct sockaddr_in SocketAddress;
struct hostent *pHost = 0;
pHost = ::gethostbyname(szHostName);
if(!pHost)
{
// Error handling -> call 'WSAGetLastError()'
}
char aszIPAddresses[10][16]; // maximum of ten IP addresses
for(int iCnt = 0; ((pHost->h_addr_list[iCnt]) && (iCnt < 10)); ++iCnt)
{
memcpy(&SocketAddress.sin_addr, pHost->h_addr_list[iCnt], pHost->h_length);
strcpy(aszIPAddresses[iCnt], inet_ntoa(SocketAddress.sin_addr));
//std::cout << aszIPAddresses[iCnt] << endln;
}
// Cleanup
WSACleanup();
return 0;
}
whoi
2009-12-22 20:11:24