cross-platform doctests

library/std/src/os/unix/net/addr.rs

@@ -214,6 +214,7 @@ impl SocketAddr {
     ///     Ok(())
     /// }
     /// ```
+    #[doc(cfg(any(target_os = "android", target_os = "linux")))]
     #[cfg(any(doc, target_os = "android", target_os = "linux",))]
     #[unstable(feature = "unix_socket_abstract", issue = "85410")]
     pub fn as_abstract_namespace(&self) -> Option<&[u8]> {
@@ -271,6 +272,7 @@ impl SocketAddr {
     ///     Ok(())
     /// }
     /// ```
+    #[doc(cfg(any(target_os = "android", target_os = "linux")))]
     #[cfg(any(doc, target_os = "android", target_os = "linux",))]
     #[unstable(feature = "unix_socket_abstract", issue = "85410")]
     pub fn from_abstract_namespace(namespace: &[u8]) -> io::Result<SocketAddr> {

library/std/src/os/unix/net/datagram.rs

@@ -118,11 +118,13 @@ impl UnixDatagram {
     ///
     /// ```no_run
     /// #![feature(unix_socket_abstract)]
-    /// use std::os::unix::net::{UnixDatagram, SocketAddr};
+    /// use std::os::unix::net::{UnixDatagram};
     ///
     /// fn main() -> std::io::Result<()> {
-    ///     let addr = SocketAddr::from_abstract_namespace(b"hidden")?; // Linux only
-    ///     let sock = match UnixDatagram::bind_addr(&addr) {
+    ///     let sock1 = UnixDatagram::bind("path/to/socket")?;
+    ///     let addr = sock1.local_addr()?;
+    ///
+    ///     let sock2 = match UnixDatagram::bind_addr(&addr) {
     ///         Ok(sock) => sock,
     ///         Err(err) => {
     ///             println!("Couldn't bind: {:?}", err);
@@ -231,10 +233,12 @@ impl UnixDatagram {
     ///
     /// ```no_run
     /// #![feature(unix_socket_abstract)]
-    /// use std::os::unix::net::{UnixDatagram, SocketAddr};
+    /// use std::os::unix::net::{UnixDatagram};
     ///
     /// fn main() -> std::io::Result<()> {
-    ///     let addr = SocketAddr::from_abstract_namespace(b"hidden")?; // Linux only
+    ///     let bound = UnixDatagram::bind("/path/to/socket")?;
+    ///     let addr = bound.local_addr()?;
+    ///
     ///     let sock = UnixDatagram::unbound()?;
     ///     match sock.connect_addr(&addr) {
     ///         Ok(sock) => sock,
@@ -549,10 +553,12 @@ impl UnixDatagram {
     ///
     /// ```no_run
     /// #![feature(unix_socket_abstract)]
-    /// use std::os::unix::net::{UnixDatagram, SocketAddr};
+    /// use std::os::unix::net::{UnixDatagram};
     ///
     /// fn main() -> std::io::Result<()> {
-    ///     let addr = SocketAddr::from_abstract_namespace(b"hidden")?;
+    ///     let bound = UnixDatagram::bind("/path/to/socket")?;
+    ///     let addr = bound.local_addr()?;
+    ///
     ///     let sock = UnixDatagram::unbound()?;
     ///     sock.send_to_addr(b"bacon egg and cheese", &addr).expect("send_to_addr function failed");
     ///     Ok(())

library/std/src/os/unix/net/listener.rs

@@ -89,11 +89,13 @@ impl UnixListener {
     ///
     /// ```no_run
     /// #![feature(unix_socket_abstract)]
-    /// use std::os::unix::net::{UnixListener, SocketAddr};
+    /// use std::os::unix::net::{UnixListener};
     ///
     /// fn main() -> std::io::Result<()> {
-    ///     let addr = SocketAddr::from_abstract_namespace(b"namespace")?; // Linux only
-    ///     let listener = match UnixListener::bind_addr(&addr) {
+    ///     let listener1 = UnixListener::bind("path/to/socket")?;
+    ///     let addr = listener1.local_addr()?;
+    ///
+    ///     let listener2 = match UnixListener::bind_addr(&addr) {
     ///         Ok(sock) => sock,
     ///         Err(err) => {
     ///             println!("Couldn't bind: {:?}", err);

library/std/src/os/unix/net/stream.rs

@@ -114,11 +114,13 @@ impl UnixStream {
     ///
     /// ```no_run
     /// #![feature(unix_socket_abstract)]
-    /// use std::os::unix::net::{UnixStream, SocketAddr};
+    /// use std::os::unix::net::{UnixListener, UnixStream};
     ///
     /// fn main() -> std::io::Result<()> {
-    ///     let addr = SocketAddr::from_abstract_namespace(b"hidden")?; // Linux only
-    ///     match UnixStream::connect_addr(&addr) {
+    ///     let listener = UnixListener::bind("/path/to/the/socket")?;
+    ///     let addr = listener.local_addr()?;
+    ///
+    ///     let sock = match UnixStream::connect_addr(&addr) {
     ///         Ok(sock) => sock,
     ///         Err(e) => {
     ///             println!("Couldn't connect: {:?}", e);

library/std/src/os/unix/net/tests.rs

@@ -303,6 +303,30 @@ fn test_unnamed_unix_datagram() {
     assert_eq!(msg, &buf[..]);
 }
 
+#[test]
+fn test_unix_datagram_connect_to_recv_addr() {
+    let dir = tmpdir();
+    let path1 = dir.path().join("sock1");
+    let path2 = dir.path().join("sock2");
+
+    let sock1 = or_panic!(UnixDatagram::bind(&path1));
+    let sock2 = or_panic!(UnixDatagram::bind(&path2));
+
+    let msg = b"hello world";
+    let sock1_addr = or_panic!(sock1.local_addr());
+    or_panic!(sock2.send_to_addr(msg, &sock1_addr));
+    let mut buf = [0; 11];
+    let (_, addr) = or_panic!(sock1.recv_from(&mut buf));
+
+    let new_msg = b"hello back";
+    let mut new_buf = [0; 10];
+    or_panic!(sock2.connect_addr(&addr));
+    or_panic!(sock2.send(new_msg)); // set by connect_addr
+    let usize = or_panic!(sock2.recv(&mut new_buf));
+    assert_eq!(usize, 10);
+    assert_eq!(new_msg, &new_buf[..]);
+}
+
 #[test]
 fn test_connect_unix_datagram() {
     let dir = tmpdir();