151   int fd = *(int *)dtls_get_app_data(ctx);  in send_to_peer()  local
152   return sendto(fd, data, len, MSG_DONTWAIT,  in send_to_peer()
158   int *fd;  in dtls_handle_read()  local
163   fd = dtls_get_app_data(ctx);  in dtls_handle_read()
165   assert(fd);  in dtls_handle_read()
169   len = recvfrom(*fd, buf, sizeof(buf), MSG_TRUNC,  in dtls_handle_read()
279   int fd, opt, result;  local
317   fd = socket(listen_addr.sin6_family, SOCK_DGRAM, 0);
319   if (fd < 0) {
324   if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on) ) < 0) {
328   flags = fcntl(fd, F_GETFL, 0);
329   if (flags < 0 || fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0) {
336   if (setsockopt(fd, IPPROTO_IPV6, IPV6_RECVPKTINFO, &on, sizeof(on) ) < 0) {
338   if (setsockopt(fd, IPPROTO_IPV6, IPV6_PKTINFO, &on, sizeof(on) ) < 0) {
343   if (bind(fd, (struct sockaddr *)&listen_addr, sizeof(listen_addr)) < 0) {
350   the_context = dtls_new_context(&fd);
358     FD_SET(fd, &rfds);
364     result = select( fd+1, &rfds, &wfds, 0, &timeout);
371       if (FD_ISSET(fd, &wfds))
373       else if (FD_ISSET(fd, &rfds)) {