获取本机的第一个IP(常用例程:1)

我只是收藏一下而已

#include "winsock2.h"

#pragma comment( lib, "ws2_32" )

const char* get_first_ip(void)

{

char szHostName[128];

const char* pszAddr = NULL;

struct hostent * pHost;

int i;

WSADATA wsaData;

WSAStartup(0x202, &wsaData );

if( gethostname(szHostName, 128) == 0 )

{

pHost = gethostbyname(szHostName);

for( i = 0; pHost!= NULL && pHost->h_addr_list[i]!= NULL; i++ )

{/*对每一个IP地址进行处理*/

pszAddr = inet_ntoa (*(struct in_addr *)pHost->h_addr_list[i]);

break;

}

}

WSACleanup();

return pszAddr;

}