18 	int res, sockfd = socket(AF_INET, SOCK_RAW, IPPROTO_RAW);  in get_version()  local
22 	if (sockfd < 0)  in get_version()
27 	res = getsockopt(sockfd, SOL_IP, SO_IP_SET, &req_version, &size);  in get_version()
34 	return sockfd;  in get_version()
42 	int res, sockfd;  in get_set_byid()  local
44 	sockfd = get_version(&req.version);  in get_set_byid()
47 	res = getsockopt(sockfd, SOL_IP, SO_IP_SET, &req, &size);  in get_set_byid()
48 	close(sockfd);  in get_set_byid()
71 	int res, sockfd;  in get_set_byname()  local
73 	sockfd = get_version(&req.version);  in get_set_byname()
77 	res = getsockopt(sockfd, SOL_IP, SO_IP_SET, &req, &size);  in get_set_byname()
78 	close(sockfd);  in get_set_byname()