怎样在raw模式下截取ip/tcp头
if(WSAStartup(MAKEWORD(2, 2), &WSAData) != 0)
TRACE("WSAStartup error!");
if ((sock = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) == INVALID_SOCKET)
TRACE("socket setup error!");
if (setsockopt(sock, IPPROTO_IP,?, (char*)&flag, sizeof(flag)) == SOCKET_ERROR)
TRACE("setsockopt IP_HDRINCL error!");
if (gethostname((char*)LocalName, sizeof(LocalName)-1) == SOCKET_ERROR)
TRACE("gethostname error!");
if ((pHost = gethostbyname((char*)LocalName)) == NULL)
TRACE("gethostbyname error!");
addr_in.sin_addr = *(in_addr *)pHost->h_addr_list[0]; //IP
addr_in.sin_family = AF_INET;
addr_in.sin_port = htons(57274);
if (bind(sock, (PSOCKADDR)&addr_in, sizeof(addr_in)) == SOCKET_ERROR)
TRACE("bind error!");
dwValue = 1;
if (ioctlsocket(sock, ?, &dwValue) != 0)
TRACE("ioctlsocket SIO_RCVALL error!");
在以上的语句中,在函数setsockopt和ioctlsocket中各有一个"?"。请问"?"换成什么就完成了Raw Socket的设置。