recv_fd
listener = recv_fd(sk_pair[0]);
const int ruleset_fd_rx = recv_fd(socket_fds[1]);
fd = recv_fd(socket_fds[1]);
server_socket = recv_fd(client_child);
int epfd, i, send_fd, recv_fd;
recv_fd = receive_once(epfd, proto);
if (recv_fd != fd)
err = bind(recv_fd, (struct sockaddr *)&recv_addr4, sizeof(recv_addr4));
err = bind(recv_fd, (struct sockaddr *)&recv_addr6, sizeof(recv_addr6));
err = recvmsg(recv_fd, &msg, 0);
if (recv_fd >= 0)
close(recv_fd);
int recv_fd = -1;
recv_fd = socket(family, SOCK_DGRAM, IPPROTO_UDP);
if (recv_fd < 0) {
err = setsockopt(recv_fd, SOL_SOCKET, opt.rcvname, &opt.val, sizeof(opt.val));