C / C++ / MFC

#include "Winsock2.h"
#pragma comment(lib,"Ws2_32.lib")


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

WORD wVersionRequested;
WSADATA wsaData;
int err;
 
wVersionRequested = MAKEWORD( 2, 2 );
 
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
    /* Tell the user that we could not find a usable */
    /* WinSock DLL.                                  */
    return -1;
}

	char host[80];
	gethostname(host,80);
	LPHOSTENT lpHost;
	lpHost = gethostbyname(host);
	UINT ip = ((LPIN_ADDR)lpHost->h_addr)->s_addr;

        char* addr= inet_ntoa(*(LPIN_ADDR)lpHost->h_addr);
	
	return 0;
}

#include "Winsock2.h"
#pragma comment(lib,"Ws2_32.lib")


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

WORD wVersionRequested;
WSADATA wsaData;
int err;
 
wVersionRequested = MAKEWORD( 2, 2 );
 
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
    /* Tell the user that we could not find a usable */
    /* WinSock DLL.                                  */
    return -1;
}

	char host[80];
	gethostname(host,80);
	LPHOSTENT lpHost;
	lpHost = gethostbyname(host);


	for(int i=0;(LPIN_ADDR)lpHost->h_addr_list[i] != 0;i++) {
		UINT ip = ((LPIN_ADDR)lpHost->h_addr_list[i])->s_addr;
		char* addr= inet_ntoa(*(LPIN_ADDR)lpHost->h_addr_list[i]);
	}
	
	return 0;
}