1 files changed, 56 insertions, 0 deletions
diff --git a/src/sys/unix/uds/datagram.rs b/src/sys/unix/uds/datagram.rs
new file mode 100644
index 0000000..d3e5314
--- /dev/null
+++ b/src/sys/unix/uds/datagram.rs
@@ -0,0 +1,56 @@
+use super::{socket_addr, SocketAddr};
+use crate::sys::unix::net::new_socket;
+
+use std::io;
+use std::os::unix::io::{AsRawFd, FromRawFd};
+use std::os::unix::net;
+use std::path::Path;
+
+pub(crate) fn bind(path: &Path) -> io::Result<net::UnixDatagram> {
+    let fd = new_socket(libc::AF_UNIX, libc::SOCK_DGRAM)?;
+    // Ensure the fd is closed.
+    let socket = unsafe { net::UnixDatagram::from_raw_fd(fd) };
+    let (sockaddr, socklen) = socket_addr(path)?;
+    let sockaddr = &sockaddr as *const libc::sockaddr_un as *const _;
+    syscall!(bind(fd, sockaddr, socklen))?;
+    Ok(socket)
+}
+
+pub(crate) fn unbound() -> io::Result<net::UnixDatagram> {
+    new_socket(libc::AF_UNIX, libc::SOCK_DGRAM)
+        .map(|socket| unsafe { net::UnixDatagram::from_raw_fd(socket) })
+}
+
+pub(crate) fn pair() -> io::Result<(net::UnixDatagram, net::UnixDatagram)> {
+    super::pair(libc::SOCK_DGRAM)
+}
+
+pub(crate) fn local_addr(socket: &net::UnixDatagram) -> io::Result<SocketAddr> {
+    super::local_addr(socket.as_raw_fd())
+}
+
+pub(crate) fn peer_addr(socket: &net::UnixDatagram) -> io::Result<SocketAddr> {
+    super::peer_addr(socket.as_raw_fd())
+}
+
+pub(crate) fn recv_from(
+    socket: &net::UnixDatagram,
+    dst: &mut [u8],
+) -> io::Result<(usize, SocketAddr)> {
+    let mut count = 0;
+    let socketaddr = SocketAddr::new(|sockaddr, socklen| {
+        syscall!(recvfrom(
+            socket.as_raw_fd(),
+            dst.as_mut_ptr() as *mut _,
+            dst.len(),
+            0,
+            sockaddr,
+            socklen,
+        ))
+        .map(|c| {
+            count = c;
+            c as libc::c_int
+        })
+    })?;
+    Ok((count as usize, socketaddr))
+}