use crate::fmt; use crate::io::prelude::*; use crate::io::{BorrowedBuf, ErrorKind, IoSlice, IoSliceMut}; use crate::mem::MaybeUninit; use crate::net::test::{next_test_ip4, next_test_ip6}; use crate::net::*; use crate::sync::mpsc::channel; use crate::thread; use crate::time::{Duration, Instant}; fn each_ip(f: &mut dyn FnMut(SocketAddr)) { f(next_test_ip4()); f(next_test_ip6()); } macro_rules! t { ($e:expr) => { match $e { Ok(t) => t, Err(e) => panic!("received error for `{}`: {}", stringify!($e), e), } }; } #[test] fn bind_error() { match TcpListener::bind("1.1.1.1:9999") { Ok(..) => panic!(), Err(e) => assert_eq!(e.kind(), ErrorKind::AddrNotAvailable), } } #[test] fn connect_error() { match TcpStream::connect("0.0.0.0:1") { Ok(..) => panic!(), Err(e) => assert!( e.kind() == ErrorKind::ConnectionRefused || e.kind() == ErrorKind::InvalidInput || e.kind() == ErrorKind::AddrInUse || e.kind() == ErrorKind::AddrNotAvailable, "bad error: {} {:?}", e, e.kind() ), } } #[test] fn listen_localhost() { let socket_addr = next_test_ip4(); let listener = t!(TcpListener::bind(&socket_addr)); let _t = thread::spawn(move || { let mut stream = t!(TcpStream::connect(&("localhost", socket_addr.port()))); t!(stream.write(&[144])); }); let mut stream = t!(listener.accept()).0; let mut buf = [0]; t!(stream.read(&mut buf)); assert!(buf[0] == 144); } #[test] fn connect_loopback() { each_ip(&mut |addr| { let acceptor = t!(TcpListener::bind(&addr)); let _t = thread::spawn(move || { let host = match addr { SocketAddr::V4(..) => "127.0.0.1", SocketAddr::V6(..) => "::1", }; let mut stream = t!(TcpStream::connect(&(host, addr.port()))); t!(stream.write(&[66])); }); let mut stream = t!(acceptor.accept()).0; let mut buf = [0]; t!(stream.read(&mut buf)); assert!(buf[0] == 66); }) } #[test] fn smoke_test() { each_ip(&mut |addr| { let acceptor = t!(TcpListener::bind(&addr)); let (tx, rx) = channel(); let _t = thread::spawn(move || { let mut stream = t!(TcpStream::connect(&addr)); t!(stream.write(&[99])); tx.send(t!(stream.local_addr())).unwrap(); }); let (mut stream, addr) = t!(acceptor.accept()); let mut buf = [0]; t!(stream.read(&mut buf)); assert!(buf[0] == 99); assert_eq!(addr, t!(rx.recv())); }) } #[test] fn read_eof() { each_ip(&mut |addr| { let acceptor = t!(TcpListener::bind(&addr)); let _t = thread::spawn(move || { let _stream = t!(TcpStream::connect(&addr)); // Close }); let mut stream = t!(acceptor.accept()).0; let mut buf = [0]; let nread = t!(stream.read(&mut buf)); assert_eq!(nread, 0); let nread = t!(stream.read(&mut buf)); assert_eq!(nread, 0); }) } #[test] fn write_close() { each_ip(&mut |addr| { let acceptor = t!(TcpListener::bind(&addr)); let (tx, rx) = channel(); let _t = thread::spawn(move || { drop(t!(TcpStream::connect(&addr))); tx.send(()).unwrap(); }); let mut stream = t!(acceptor.accept()).0; rx.recv().unwrap(); let buf = [0]; match stream.write(&buf) { Ok(..) => {} Err(e) => { assert!( e.kind() == ErrorKind::ConnectionReset || e.kind() == ErrorKind::BrokenPipe || e.kind() == ErrorKind::ConnectionAborted, "unknown error: {e}" ); } } }) } #[test] fn multiple_connect_serial() { each_ip(&mut |addr| { let max = 10; let acceptor = t!(TcpListener::bind(&addr)); let _t = thread::spawn(move || { for _ in 0..max { let mut stream = t!(TcpStream::connect(&addr)); t!(stream.write(&[99])); } }); for stream in acceptor.incoming().take(max) { let mut stream = t!(stream); let mut buf = [0]; t!(stream.read(&mut buf)); assert_eq!(buf[0], 99); } }) } #[test] fn multiple_connect_interleaved_greedy_schedule() { const MAX: usize = 10; each_ip(&mut |addr| { let acceptor = t!(TcpListener::bind(&addr)); let _t = thread::spawn(move || { let acceptor = acceptor; for (i, stream) in acceptor.incoming().enumerate().take(MAX) { // Start another thread to handle the connection let _t = thread::spawn(move || { let mut stream = t!(stream); let mut buf = [0]; t!(stream.read(&mut buf)); assert!(buf[0] == i as u8); }); } }); connect(0, addr); }); fn connect(i: usize, addr: SocketAddr) { if i == MAX { return; } let t = thread::spawn(move || { let mut stream = t!(TcpStream::connect(&addr)); // Connect again before writing connect(i + 1, addr); t!(stream.write(&[i as u8])); }); t.join().ok().expect("thread panicked"); } } #[test] fn multiple_connect_interleaved_lazy_schedule() { const MAX: usize = 10; each_ip(&mut |addr| { let acceptor = t!(TcpListener::bind(&addr)); let _t = thread::spawn(move || { for stream in acceptor.incoming().take(MAX) { // Start another thread to handle the connection let _t = thread::spawn(move || { let mut stream = t!(stream); let mut buf = [0]; t!(stream.read(&mut buf)); assert!(buf[0] == 99); }); } }); connect(0, addr); }); fn connect(i: usize, addr: SocketAddr) { if i == MAX { return; } let t = thread::spawn(move || { let mut stream = t!(TcpStream::connect(&addr)); connect(i + 1, addr); t!(stream.write(&[99])); }); t.join().ok().expect("thread panicked"); } } #[test] fn socket_and_peer_name() { each_ip(&mut |addr| { let listener = t!(TcpListener::bind(&addr)); let so_name = t!(listener.local_addr()); assert_eq!(addr, so_name); let _t = thread::spawn(move || { t!(listener.accept()); }); let stream = t!(TcpStream::connect(&addr)); assert_eq!(addr, t!(stream.peer_addr())); }) } #[test] fn partial_read() { each_ip(&mut |addr| { let (tx, rx) = channel(); let srv = t!(TcpListener::bind(&addr)); let _t = thread::spawn(move || { let mut cl = t!(srv.accept()).0; cl.write(&[10]).unwrap(); let mut b = [0]; t!(cl.read(&mut b)); tx.send(()).unwrap(); }); let mut c = t!(TcpStream::connect(&addr)); let mut b = [0; 10]; assert_eq!(c.read(&mut b).unwrap(), 1); t!(c.write(&[1])); rx.recv().unwrap(); }) } #[test] fn read_buf() { each_ip(&mut |addr| { let srv = t!(TcpListener::bind(&addr)); let t = thread::spawn(move || { let mut s = t!(TcpStream::connect(&addr)); s.write_all(&[1, 2, 3, 4]).unwrap(); }); let mut s = t!(srv.accept()).0; let mut buf: [MaybeUninit; 128] = MaybeUninit::uninit_array(); let mut buf = BorrowedBuf::from(buf.as_mut_slice()); t!(s.read_buf(buf.unfilled())); assert_eq!(buf.filled(), &[1, 2, 3, 4]); // FIXME: sgx uses default_read_buf that initializes the buffer. if cfg!(not(target_env = "sgx")) { // TcpStream::read_buf should omit buffer initialization. assert_eq!(buf.init_len(), 4); } t.join().ok().expect("thread panicked"); }) } #[test] fn read_vectored() { each_ip(&mut |addr| { let srv = t!(TcpListener::bind(&addr)); let mut s1 = t!(TcpStream::connect(&addr)); let mut s2 = t!(srv.accept()).0; let len = s1.write(&[10, 11, 12]).unwrap(); assert_eq!(len, 3); let mut a = []; let mut b = [0]; let mut c = [0; 3]; let len = t!(s2.read_vectored(&mut [ IoSliceMut::new(&mut a), IoSliceMut::new(&mut b), IoSliceMut::new(&mut c) ],)); assert!(len > 0); assert_eq!(b, [10]); // some implementations don't support readv, so we may only fill the first buffer assert!(len == 1 || c == [11, 12, 0]); }) } #[test] fn write_vectored() { each_ip(&mut |addr| { let srv = t!(TcpListener::bind(&addr)); let mut s1 = t!(TcpStream::connect(&addr)); let mut s2 = t!(srv.accept()).0; let a = []; let b = [10]; let c = [11, 12]; t!(s1.write_vectored(&[IoSlice::new(&a), IoSlice::new(&b), IoSlice::new(&c)])); let mut buf = [0; 4]; let len = t!(s2.read(&mut buf)); // some implementations don't support writev, so we may only write the first buffer if len == 1 { assert_eq!(buf, [10, 0, 0, 0]); } else { assert_eq!(len, 3); assert_eq!(buf, [10, 11, 12, 0]); } }) } #[test] fn double_bind() { each_ip(&mut |addr| { let listener1 = t!(TcpListener::bind(&addr)); match TcpListener::bind(&addr) { Ok(listener2) => panic!( "This system (perhaps due to options set by TcpListener::bind) \ permits double binding: {:?} and {:?}", listener1, listener2 ), Err(e) => { assert!( e.kind() == ErrorKind::ConnectionRefused || e.kind() == ErrorKind::Uncategorized || e.kind() == ErrorKind::AddrInUse, "unknown error: {} {:?}", e, e.kind() ); } } }) } #[test] fn tcp_clone_smoke() { each_ip(&mut |addr| { let acceptor = t!(TcpListener::bind(&addr)); let _t = thread::spawn(move || { let mut s = t!(TcpStream::connect(&addr)); let mut buf = [0, 0]; assert_eq!(s.read(&mut buf).unwrap(), 1); assert_eq!(buf[0], 1); t!(s.write(&[2])); }); let mut s1 = t!(acceptor.accept()).0; let s2 = t!(s1.try_clone()); let (tx1, rx1) = channel(); let (tx2, rx2) = channel(); let _t = thread::spawn(move || { let mut s2 = s2; rx1.recv().unwrap(); t!(s2.write(&[1])); tx2.send(()).unwrap(); }); tx1.send(()).unwrap(); let mut buf = [0, 0]; assert_eq!(s1.read(&mut buf).unwrap(), 1); rx2.recv().unwrap(); }) } #[test] fn tcp_clone_two_read() { each_ip(&mut |addr| { let acceptor = t!(TcpListener::bind(&addr)); let (tx1, rx) = channel(); let tx2 = tx1.clone(); let _t = thread::spawn(move || { let mut s = t!(TcpStream::connect(&addr)); t!(s.write(&[1])); rx.recv().unwrap(); t!(s.write(&[2])); rx.recv().unwrap(); }); let mut s1 = t!(acceptor.accept()).0; let s2 = t!(s1.try_clone()); let (done, rx) = channel(); let _t = thread::spawn(move || { let mut s2 = s2; let mut buf = [0, 0]; t!(s2.read(&mut buf)); tx2.send(()).unwrap(); done.send(()).unwrap(); }); let mut buf = [0, 0]; t!(s1.read(&mut buf)); tx1.send(()).unwrap(); rx.recv().unwrap(); }) } #[test] fn tcp_clone_two_write() { each_ip(&mut |addr| { let acceptor = t!(TcpListener::bind(&addr)); let _t = thread::spawn(move || { let mut s = t!(TcpStream::connect(&addr)); let mut buf = [0, 1]; t!(s.read(&mut buf)); t!(s.read(&mut buf)); }); let mut s1 = t!(acceptor.accept()).0; let s2 = t!(s1.try_clone()); let (done, rx) = channel(); let _t = thread::spawn(move || { let mut s2 = s2; t!(s2.write(&[1])); done.send(()).unwrap(); }); t!(s1.write(&[2])); rx.recv().unwrap(); }) } #[test] // FIXME: https://github.com/fortanix/rust-sgx/issues/110 #[cfg_attr(target_env = "sgx", ignore)] fn shutdown_smoke() { each_ip(&mut |addr| { let a = t!(TcpListener::bind(&addr)); let _t = thread::spawn(move || { let mut c = t!(a.accept()).0; let mut b = [0]; assert_eq!(c.read(&mut b).unwrap(), 0); t!(c.write(&[1])); }); let mut s = t!(TcpStream::connect(&addr)); t!(s.shutdown(Shutdown::Write)); assert!(s.write(&[1]).is_err()); let mut b = [0, 0]; assert_eq!(t!(s.read(&mut b)), 1); assert_eq!(b[0], 1); }) } #[test] // FIXME: https://github.com/fortanix/rust-sgx/issues/110 #[cfg_attr(target_env = "sgx", ignore)] fn close_readwrite_smoke() { each_ip(&mut |addr| { let a = t!(TcpListener::bind(&addr)); let (tx, rx) = channel::<()>(); let _t = thread::spawn(move || { let _s = t!(a.accept()); let _ = rx.recv(); }); let mut b = [0]; let mut s = t!(TcpStream::connect(&addr)); let mut s2 = t!(s.try_clone()); // closing should prevent reads/writes t!(s.shutdown(Shutdown::Write)); assert!(s.write(&[0]).is_err()); t!(s.shutdown(Shutdown::Read)); assert_eq!(s.read(&mut b).unwrap(), 0); // closing should affect previous handles assert!(s2.write(&[0]).is_err()); assert_eq!(s2.read(&mut b).unwrap(), 0); // closing should affect new handles let mut s3 = t!(s.try_clone()); assert!(s3.write(&[0]).is_err()); assert_eq!(s3.read(&mut b).unwrap(), 0); // make sure these don't die let _ = s2.shutdown(Shutdown::Read); let _ = s2.shutdown(Shutdown::Write); let _ = s3.shutdown(Shutdown::Read); let _ = s3.shutdown(Shutdown::Write); drop(tx); }) } #[test] #[cfg_attr(target_env = "sgx", ignore)] fn close_read_wakes_up() { each_ip(&mut |addr| { let a = t!(TcpListener::bind(&addr)); let (tx1, rx) = channel::<()>(); let _t = thread::spawn(move || { let _s = t!(a.accept()); let _ = rx.recv(); }); let s = t!(TcpStream::connect(&addr)); let s2 = t!(s.try_clone()); let (tx, rx) = channel(); let _t = thread::spawn(move || { let mut s2 = s2; assert_eq!(t!(s2.read(&mut [0])), 0); tx.send(()).unwrap(); }); // this should wake up the child thread t!(s.shutdown(Shutdown::Read)); // this test will never finish if the child doesn't wake up rx.recv().unwrap(); drop(tx1); }) } #[test] fn clone_while_reading() { each_ip(&mut |addr| { let accept = t!(TcpListener::bind(&addr)); // Enqueue a thread to write to a socket let (tx, rx) = channel(); let (txdone, rxdone) = channel(); let txdone2 = txdone.clone(); let _t = thread::spawn(move || { let mut tcp = t!(TcpStream::connect(&addr)); rx.recv().unwrap(); t!(tcp.write(&[0])); txdone2.send(()).unwrap(); }); // Spawn off a reading clone let tcp = t!(accept.accept()).0; let tcp2 = t!(tcp.try_clone()); let txdone3 = txdone.clone(); let _t = thread::spawn(move || { let mut tcp2 = tcp2; t!(tcp2.read(&mut [0])); txdone3.send(()).unwrap(); }); // Try to ensure that the reading clone is indeed reading for _ in 0..50 { thread::yield_now(); } // clone the handle again while it's reading, then let it finish the // read. let _ = t!(tcp.try_clone()); tx.send(()).unwrap(); rxdone.recv().unwrap(); rxdone.recv().unwrap(); }) } #[test] fn clone_accept_smoke() { each_ip(&mut |addr| { let a = t!(TcpListener::bind(&addr)); let a2 = t!(a.try_clone()); let _t = thread::spawn(move || { let _ = TcpStream::connect(&addr); }); let _t = thread::spawn(move || { let _ = TcpStream::connect(&addr); }); t!(a.accept()); t!(a2.accept()); }) } #[test] fn clone_accept_concurrent() { each_ip(&mut |addr| { let a = t!(TcpListener::bind(&addr)); let a2 = t!(a.try_clone()); let (tx, rx) = channel(); let tx2 = tx.clone(); let _t = thread::spawn(move || { tx.send(t!(a.accept())).unwrap(); }); let _t = thread::spawn(move || { tx2.send(t!(a2.accept())).unwrap(); }); let _t = thread::spawn(move || { let _ = TcpStream::connect(&addr); }); let _t = thread::spawn(move || { let _ = TcpStream::connect(&addr); }); rx.recv().unwrap(); rx.recv().unwrap(); }) } #[test] fn debug() { #[cfg(not(target_env = "sgx"))] fn render_socket_addr<'a>(addr: &'a SocketAddr) -> impl fmt::Debug + 'a { addr } #[cfg(target_env = "sgx")] fn render_socket_addr<'a>(addr: &'a SocketAddr) -> impl fmt::Debug + 'a { addr.to_string() } #[cfg(target_env = "sgx")] use crate::os::fortanix_sgx::io::AsRawFd; #[cfg(unix)] use crate::os::unix::io::AsRawFd; #[cfg(not(windows))] fn render_inner(addr: &dyn AsRawFd) -> impl fmt::Debug { addr.as_raw_fd() } #[cfg(windows)] fn render_inner(addr: &dyn crate::os::windows::io::AsRawSocket) -> impl fmt::Debug { addr.as_raw_socket() } let inner_name = if cfg!(windows) { "socket" } else { "fd" }; let socket_addr = next_test_ip4(); let listener = t!(TcpListener::bind(&socket_addr)); let compare = format!( "TcpListener {{ addr: {:?}, {}: {:?} }}", render_socket_addr(&socket_addr), inner_name, render_inner(&listener) ); assert_eq!(format!("{listener:?}"), compare); let stream = t!(TcpStream::connect(&("localhost", socket_addr.port()))); let compare = format!( "TcpStream {{ addr: {:?}, peer: {:?}, {}: {:?} }}", render_socket_addr(&stream.local_addr().unwrap()), render_socket_addr(&stream.peer_addr().unwrap()), inner_name, render_inner(&stream) ); assert_eq!(format!("{stream:?}"), compare); } // FIXME: re-enabled openbsd tests once their socket timeout code // no longer has rounding errors. // VxWorks ignores SO_SNDTIMEO. #[cfg_attr( any(target_os = "netbsd", target_os = "openbsd", target_os = "vxworks", target_os = "nto"), ignore )] #[cfg_attr(target_env = "sgx", ignore)] // FIXME: https://github.com/fortanix/rust-sgx/issues/31 #[test] fn timeouts() { let addr = next_test_ip4(); let listener = t!(TcpListener::bind(&addr)); let stream = t!(TcpStream::connect(&("localhost", addr.port()))); let dur = Duration::new(15410, 0); assert_eq!(None, t!(stream.read_timeout())); t!(stream.set_read_timeout(Some(dur))); assert_eq!(Some(dur), t!(stream.read_timeout())); assert_eq!(None, t!(stream.write_timeout())); t!(stream.set_write_timeout(Some(dur))); assert_eq!(Some(dur), t!(stream.write_timeout())); t!(stream.set_read_timeout(None)); assert_eq!(None, t!(stream.read_timeout())); t!(stream.set_write_timeout(None)); assert_eq!(None, t!(stream.write_timeout())); drop(listener); } #[test] #[cfg_attr(target_env = "sgx", ignore)] // FIXME: https://github.com/fortanix/rust-sgx/issues/31 fn test_read_timeout() { let addr = next_test_ip4(); let listener = t!(TcpListener::bind(&addr)); let mut stream = t!(TcpStream::connect(&("localhost", addr.port()))); t!(stream.set_read_timeout(Some(Duration::from_millis(1000)))); let mut buf = [0; 10]; let start = Instant::now(); let kind = stream.read_exact(&mut buf).err().expect("expected error").kind(); assert!( kind == ErrorKind::WouldBlock || kind == ErrorKind::TimedOut, "unexpected_error: {:?}", kind ); assert!(start.elapsed() > Duration::from_millis(400)); drop(listener); } #[test] #[cfg_attr(target_env = "sgx", ignore)] // FIXME: https://github.com/fortanix/rust-sgx/issues/31 fn test_read_with_timeout() { let addr = next_test_ip4(); let listener = t!(TcpListener::bind(&addr)); let mut stream = t!(TcpStream::connect(&("localhost", addr.port()))); t!(stream.set_read_timeout(Some(Duration::from_millis(1000)))); let mut other_end = t!(listener.accept()).0; t!(other_end.write_all(b"hello world")); let mut buf = [0; 11]; t!(stream.read(&mut buf)); assert_eq!(b"hello world", &buf[..]); let start = Instant::now(); let kind = stream.read_exact(&mut buf).err().expect("expected error").kind(); assert!( kind == ErrorKind::WouldBlock || kind == ErrorKind::TimedOut, "unexpected_error: {:?}", kind ); assert!(start.elapsed() > Duration::from_millis(400)); drop(listener); } // Ensure the `set_read_timeout` and `set_write_timeout` calls return errors // when passed zero Durations #[test] fn test_timeout_zero_duration() { let addr = next_test_ip4(); let listener = t!(TcpListener::bind(&addr)); let stream = t!(TcpStream::connect(&addr)); let result = stream.set_write_timeout(Some(Duration::new(0, 0))); let err = result.unwrap_err(); assert_eq!(err.kind(), ErrorKind::InvalidInput); let result = stream.set_read_timeout(Some(Duration::new(0, 0))); let err = result.unwrap_err(); assert_eq!(err.kind(), ErrorKind::InvalidInput); drop(listener); } #[test] #[cfg_attr(target_env = "sgx", ignore)] fn linger() { let addr = next_test_ip4(); let _listener = t!(TcpListener::bind(&addr)); let stream = t!(TcpStream::connect(&("localhost", addr.port()))); assert_eq!(None, t!(stream.linger())); t!(stream.set_linger(Some(Duration::from_secs(1)))); assert_eq!(Some(Duration::from_secs(1)), t!(stream.linger())); t!(stream.set_linger(None)); assert_eq!(None, t!(stream.linger())); } #[test] #[cfg_attr(target_env = "sgx", ignore)] fn nodelay() { let addr = next_test_ip4(); let _listener = t!(TcpListener::bind(&addr)); let stream = t!(TcpStream::connect(&("localhost", addr.port()))); assert_eq!(false, t!(stream.nodelay())); t!(stream.set_nodelay(true)); assert_eq!(true, t!(stream.nodelay())); t!(stream.set_nodelay(false)); assert_eq!(false, t!(stream.nodelay())); } #[test] #[cfg_attr(target_env = "sgx", ignore)] fn ttl() { let ttl = 100; let addr = next_test_ip4(); let listener = t!(TcpListener::bind(&addr)); t!(listener.set_ttl(ttl)); assert_eq!(ttl, t!(listener.ttl())); let stream = t!(TcpStream::connect(&("localhost", addr.port()))); t!(stream.set_ttl(ttl)); assert_eq!(ttl, t!(stream.ttl())); } #[test] #[cfg_attr(target_env = "sgx", ignore)] fn set_nonblocking() { let addr = next_test_ip4(); let listener = t!(TcpListener::bind(&addr)); t!(listener.set_nonblocking(true)); t!(listener.set_nonblocking(false)); let mut stream = t!(TcpStream::connect(&("localhost", addr.port()))); t!(stream.set_nonblocking(false)); t!(stream.set_nonblocking(true)); let mut buf = [0]; match stream.read(&mut buf) { Ok(_) => panic!("expected error"), Err(ref e) if e.kind() == ErrorKind::WouldBlock => {} Err(e) => panic!("unexpected error {e}"), } } #[test] #[cfg_attr(target_env = "sgx", ignore)] // FIXME: https://github.com/fortanix/rust-sgx/issues/31 fn peek() { each_ip(&mut |addr| { let (txdone, rxdone) = channel(); let srv = t!(TcpListener::bind(&addr)); let _t = thread::spawn(move || { let mut cl = t!(srv.accept()).0; cl.write(&[1, 3, 3, 7]).unwrap(); t!(rxdone.recv()); }); let mut c = t!(TcpStream::connect(&addr)); let mut b = [0; 10]; for _ in 1..3 { let len = c.peek(&mut b).unwrap(); assert_eq!(len, 4); } let len = c.read(&mut b).unwrap(); assert_eq!(len, 4); t!(c.set_nonblocking(true)); match c.peek(&mut b) { Ok(_) => panic!("expected error"), Err(ref e) if e.kind() == ErrorKind::WouldBlock => {} Err(e) => panic!("unexpected error {e}"), } t!(txdone.send(())); }) } #[test] #[cfg_attr(target_env = "sgx", ignore)] // FIXME: https://github.com/fortanix/rust-sgx/issues/31 fn connect_timeout_valid() { let listener = TcpListener::bind("127.0.0.1:0").unwrap(); let addr = listener.local_addr().unwrap(); TcpStream::connect_timeout(&addr, Duration::from_secs(2)).unwrap(); }