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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 ports::localhost;
use libc::c_char;
#[test]
pub fn test_inetv4_addr_to_sock_addr() {
let actual: net::SocketAddr = FromStr::from_str("127.0.0.1:3000").unwrap();
let addr = InetAddr::from_std(&actual);
match addr {
InetAddr::V4(addr) => {
let ip: u32 = 0x7f000001;
let port: u16 = 3000;
assert_eq!(addr.sin_addr.s_addr, ip.to_be());
assert_eq!(addr.sin_port, port.to_be());
}
_ => panic!("nope"),
}
assert_eq!(addr.to_str(), "127.0.0.1:3000");
let inet = addr.to_std();
assert_eq!(actual, inet);
}
#[test]
pub fn test_path_to_sock_addr() {
let actual = Path::new("/foo/bar");
let addr = UnixAddr::new(actual).unwrap();
let expect: &'static [c_char] = unsafe { mem::transmute(&b"/foo/bar"[..]) };
assert_eq!(&addr.0.sun_path[..8], expect);
assert_eq!(addr.path(), Some(actual));
}
#[test]
pub fn test_getsockname() {
use std::net::TcpListener;
let addr = localhost();
let sock = TcpListener::bind(&*addr).unwrap();
let res = getsockname(sock.as_raw_fd()).unwrap();
assert_eq!(addr, res.to_str());
}
#[test]
pub fn test_socketpair() {
use nix::unistd::{read, write};
use nix::sys::socket::{socketpair, AddressFamily, SockType, SockFlag};
let (fd1, fd2) = socketpair(AddressFamily::Unix, SockType::Stream, 0,
SockFlag::empty())
.unwrap();
write(fd1, b"hello").unwrap();
let mut buf = [0;5];
read(fd2, &mut buf).unwrap();
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();
}
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