1//! Linux and Android-specific socket functionality.
2
3use crate::io;
4use crate::os::unix::net;
5use crate::sealed::Sealed;
6use crate::sys_common::AsInner;
7
8/// Linux-specific functionality for `AF_UNIX` sockets [`UnixDatagram`]
9/// and [`UnixStream`].
10///
11/// [`UnixDatagram`]: net::UnixDatagram
12/// [`UnixStream`]: net::UnixStream
13#[unstable(feature = "unix_socket_ancillary_data", issue = "76915")]
14pub trait UnixSocketExt: Sealed {
15 /// Query the current setting of socket option `SO_PASSCRED`.
16 #[unstable(feature = "unix_socket_ancillary_data", issue = "76915")]
17 fn passcred(&self) -> io::Result<bool>;
18
19 /// Enable or disable socket option `SO_PASSCRED`.
20 ///
21 /// This option enables the credentials of the sending process to be
22 /// received as a control message in [`AncillaryData`].
23 ///
24 /// [`AncillaryData`]: net::AncillaryData
25 ///
26 /// # Examples
27 ///
28 /// ```no_run
29 /// #![feature(unix_socket_ancillary_data)]
30 /// #[cfg(target_os = "linux")]
31 /// use std::os::linux::net::UnixSocketExt;
32 /// #[cfg(target_os = "android")]
33 /// use std::os::android::net::UnixSocketExt;
34 /// use std::os::unix::net::UnixDatagram;
35 ///
36 /// fn main() -> std::io::Result<()> {
37 /// let sock = UnixDatagram::unbound()?;
38 /// sock.set_passcred(true).expect("set_passcred failed");
39 /// Ok(())
40 /// }
41 /// ```
42 #[unstable(feature = "unix_socket_ancillary_data", issue = "76915")]
43 fn set_passcred(&self, passcred: bool) -> io::Result<()>;
44}
45
46#[unstable(feature = "unix_socket_ancillary_data", issue = "76915")]
47impl UnixSocketExt for net::UnixDatagram {
48 fn passcred(&self) -> io::Result<bool> {
49 self.as_inner().passcred()
50 }
51
52 fn set_passcred(&self, passcred: bool) -> io::Result<()> {
53 self.as_inner().set_passcred(passcred)
54 }
55}
56
57#[unstable(feature = "unix_socket_ancillary_data", issue = "76915")]
58impl UnixSocketExt for net::UnixStream {
59 fn passcred(&self) -> io::Result<bool> {
60 self.as_inner().passcred()
61 }
62
63 fn set_passcred(&self, passcred: bool) -> io::Result<()> {
64 self.as_inner().set_passcred(passcred)
65 }
66}
67