Revert "Add support for sendmsg(2), recvmsg(2), and cmsg(4)"

This reverts commit 046af7d1ba82506f9bc48e62ac0584361025fc02.

1 files changed, 1 insertions, 54 deletions

diff --git a/test/sys/test_socket.rs b/test/sys/test_socket.rs
index 7b95767e..e8cb4bed 100644
--- a/test/sys/test_socket.rs
+++ b/test/sys/test_socket.rs
@@ -2,7 +2,7 @@ use nix::sys::socket::{InetAddr, UnixAddr, getsockname};
 use std::{mem, net};
 use std::path::Path;
 use std::str::FromStr;
-use std::os::unix::io::{AsRawFd, RawFd};
+use std::os::unix::io::AsRawFd;
 use ports::localhost;
 
 #[test]
@@ -63,56 +63,3 @@ pub fn test_socketpair() {
 
     assert_eq!(&buf[..], b"hello");
 }
-
-#[test]
-pub fn test_scm_rights() {
-    use nix::sys::uio::IoVec;
-    use nix::unistd::{pipe, read, write, close};
-    use nix::sys::socket::{socketpair, sendmsg, recvmsg,
-                           AddressFamily, SockType, SockFlag,
-                           ControlMessage, CmsgSpace,
-                           MSG_TRUNC, MSG_CTRUNC};
-
-    let (fd1, fd2) = socketpair(AddressFamily::Unix, SockType::Stream, 0,
-                                SockFlag::empty())
-                     .unwrap();
-    let (r, w) = pipe().unwrap();
-    let mut received_r: Option<RawFd> = None;
-
-    {
-        let iov = [IoVec::from_slice(b"hello")];
-        let fds = [r];
-        let cmsg = ControlMessage::ScmRights(&fds);
-        assert_eq!(sendmsg(fd1, &iov, &[cmsg], 0, None).unwrap(), 5);
-        close(r).unwrap();
-        close(fd1).unwrap();
-    }
-
-    {
-        let mut buf = [0u8; 5];
-        let iov = [IoVec::from_mut_slice(&mut buf[..])];
-        let mut cmsgspace: CmsgSpace<[RawFd; 1]> = CmsgSpace::new();
-        let msg = recvmsg(fd2, &iov, Some(&mut cmsgspace), 0).unwrap();
-
-        for cmsg in msg.cmsgs() {
-            if let ControlMessage::ScmRights(fd) = cmsg {
-                assert_eq!(received_r, None);
-                assert_eq!(fd.len(), 1);
-                received_r = Some(fd[0]);
-            } else {
-                panic!("unexpected cmsg");
-            }
-        }
-        assert_eq!(msg.flags & (MSG_TRUNC | MSG_CTRUNC), 0);
-        close(fd2).unwrap();
-    }
-
-    let received_r = received_r.expect("Did not receive passed fd");
-    // Ensure that the received file descriptor works
-    write(w, b"world").unwrap();
-    let mut buf = [0u8; 5];
-    read(received_r, &mut buf).unwrap();
-    assert_eq!(&buf[..], b"world");
-    close(received_r).unwrap();
-    close(w).unwrap();
-}