C++获取当前机器内网IP地址

/*头文件*/
#include "winsock2.h"

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

/*Hui 获取当前服务器IP*/
    WSADATA wsaData; 
    char name[155]; 
    char *ip; 
    PHOSTENT hostinfo; 
    if ( WSAStartup( MAKEWORD(2,0), &wsaData ) == 0 ) 
    { 
        if( gethostname ( name, sizeof(name)) == 0) 
        { 
            if((hostinfo = gethostbyname(name)) != NULL) 
            { 
                ip = inet_ntoa (*(struct in_addr *)*hostinfo->h_addr_list); 
                printf("当前服务器IP:%s
", ip); 
            } 
        } 
        WSACleanup( ); 
    }
    /*END*/