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use nix::sys::socket::{InetAddr, UnixAddr, getsockname};
use std::slice;
use std::net::{self, Ipv6Addr, SocketAddr, SocketAddrV6};
use std::path::Path;
use std::str::FromStr;
use std::os::unix::io::RawFd;
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 = 0x7f00_0001;
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_inetv6_addr_to_sock_addr() {
let port: u16 = 3000;
let flowinfo: u32 = 1;
let scope_id: u32 = 2;
let ip: Ipv6Addr = "fe80::1".parse().unwrap();
let actual = SocketAddr::V6(SocketAddrV6::new(ip, port, flowinfo, scope_id));
let addr = InetAddr::from_std(&actual);
match addr {
InetAddr::V6(addr) => {
assert_eq!(addr.sin6_port, port.to_be());
assert_eq!(addr.sin6_flowinfo, flowinfo);
assert_eq!(addr.sin6_scope_id, scope_id);
}
_ => panic!("nope"),
}
assert_eq!(actual, addr.to_std());
}
#[test]
pub fn test_path_to_sock_addr() {
let path = "/foo/bar";
let actual = Path::new(path);
let addr = UnixAddr::new(actual).unwrap();
let expect: &[c_char] = unsafe {
slice::from_raw_parts(path.as_bytes().as_ptr() as *const c_char, path.len())
};
assert_eq!(&addr.0.sun_path[..8], expect);
assert_eq!(addr.path(), Some(actual));
}
// Test getting/setting abstract addresses (without unix socket creation)
#[cfg(target_os = "linux")]
#[test]
pub fn test_abstract_uds_addr() {
let empty = String::new();
let addr = UnixAddr::new_abstract(empty.as_bytes()).unwrap();
assert_eq!(addr.as_abstract(), Some(empty.as_bytes()));
let name = String::from("nix\0abstract\0test");
let addr = UnixAddr::new_abstract(name.as_bytes()).unwrap();
assert_eq!(addr.as_abstract(), Some(name.as_bytes()));
assert_eq!(addr.path(), None);
// Internally, name is null-prefixed (abstract namespace)
let internal: &[u8] = unsafe {
slice::from_raw_parts(addr.0.sun_path.as_ptr() as *const u8, addr.1)
};
let mut abstract_name = name.clone();
abstract_name.insert(0, '\0');
assert_eq!(internal, abstract_name.as_bytes());
}
#[test]
pub fn test_getsockname() {
use nix::sys::socket::{socket, AddressFamily, SockType, SockFlag};
use nix::sys::socket::{bind, SockAddr};
use tempdir::TempDir;
let tempdir = TempDir::new("test_getsockname").unwrap();
let sockname = tempdir.path().join("sock");
let sock = socket(AddressFamily::Unix, SockType::Stream, SockFlag::empty(), None)
.expect("socket failed");
let sockaddr = SockAddr::new_unix(&sockname).unwrap();
bind(sock, &sockaddr).expect("bind failed");
assert_eq!(sockaddr.to_str(),
getsockname(sock).expect("getsockname failed").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, None, 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, MsgFlags};
let (fd1, fd2) = socketpair(AddressFamily::Unix, SockType::Stream, None, 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], MsgFlags::empty(), 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), MsgFlags::empty()).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!(!msg.flags.intersects(MsgFlags::MSG_TRUNC | MsgFlags::MSG_CTRUNC));
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();
}
// Verify `sendmsg` builds a valid `msghdr` when passing an empty
// `cmsgs` argument. This should result in a msghdr with a nullptr
// msg_control field and a msg_controllen of 0 when calling into the
// raw `sendmsg`.
#[test]
pub fn test_sendmsg_empty_cmsgs() {
use nix::sys::uio::IoVec;
use nix::unistd::close;
use nix::sys::socket::{socketpair, sendmsg, recvmsg,
AddressFamily, SockType, SockFlag,
CmsgSpace, MsgFlags};
let (fd1, fd2) = socketpair(AddressFamily::Unix, SockType::Stream, None, SockFlag::empty())
.unwrap();
{
let iov = [IoVec::from_slice(b"hello")];
assert_eq!(sendmsg(fd1, &iov, &[], MsgFlags::empty(), None).unwrap(), 5);
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), MsgFlags::empty()).unwrap();
for _ in msg.cmsgs() {
panic!("unexpected cmsg");
}
assert!(!msg.flags.intersects(MsgFlags::MSG_TRUNC | MsgFlags::MSG_CTRUNC));
close(fd2).unwrap();
}
}
// Test creating and using named unix domain sockets
#[test]
pub fn test_unixdomain() {
use nix::sys::socket::{AddressFamily, SockType, SockFlag};
use nix::sys::socket::{bind, socket, connect, listen, accept, SockAddr};
use nix::unistd::{read, write, close};
use std::thread;
use tempdir::TempDir;
let tempdir = TempDir::new("test_unixdomain").unwrap();
let sockname = tempdir.path().join("sock");
let s1 = socket(AddressFamily::Unix, SockType::Stream,
SockFlag::empty(), None).expect("socket failed");
let sockaddr = SockAddr::new_unix(&sockname).unwrap();
bind(s1, &sockaddr).expect("bind failed");
listen(s1, 10).expect("listen failed");
let thr = thread::spawn(move || {
let s2 = socket(AddressFamily::Unix, SockType::Stream, SockFlag::empty(), None)
.expect("socket failed");
connect(s2, &sockaddr).expect("connect failed");
write(s2, b"hello").expect("write failed");
close(s2).unwrap();
});
let s3 = accept(s1).expect("accept failed");
let mut buf = [0;5];
read(s3, &mut buf).unwrap();
close(s3).unwrap();
close(s1).unwrap();
thr.join().unwrap();
assert_eq!(&buf[..], b"hello");
}
// Test creating and using named system control sockets
#[cfg(any(target_os = "macos", target_os = "ios"))]
#[test]
pub fn test_syscontrol() {
use nix::Error;
use nix::errno::Errno;
use nix::sys::socket::{AddressFamily, socket, SockAddr, SockType, SockFlag, SockProtocol};
let fd = socket(AddressFamily::System, SockType::Datagram,
SockFlag::empty(), SockProtocol::KextControl)
.expect("socket failed");
let _sockaddr = SockAddr::new_sys_control(fd, "com.apple.net.utun_control", 0).expect("resolving sys_control name failed");
assert_eq!(SockAddr::new_sys_control(fd, "foo.bar.lol", 0).err(), Some(Error::Sys(Errno::ENOENT)));
// requires root privileges
// connect(fd, &sockaddr).expect("connect failed");
}
/// Test non-blocking mode on new sockets via SockFlag::O_NONBLOCK
#[cfg(any(target_os = "android",
target_os = "dragonfly",
target_os = "freebsd",
target_os = "linux",
target_os = "netbsd",
target_os = "openbsd"))]
#[test]
pub fn test_sockflag_nonblock() {
use libc;
use nix::fcntl::{fcntl};
use nix::fcntl::FcntlArg::{F_GETFL};
use nix::sys::socket::{socket, AddressFamily, SockType, SockFlag};
/* first, try without SockFlag::SOCK_NONBLOCK */
let sock = socket(AddressFamily::Unix, SockType::Stream, SockFlag::empty(), None)
.expect("socket failed");
let fcntl_res = fcntl(sock, F_GETFL).expect("fcntl failed");
assert!(fcntl_res & libc::O_NONBLOCK == 0);
/* next, try with SockFlag::SOCK_NONBLOCK */
let sock = socket(AddressFamily::Unix, SockType::Stream, SockFlag::SOCK_NONBLOCK, None)
.expect("socket failed");
let fcntl_res = fcntl(sock, F_GETFL).expect("fcntl failed");
assert!(fcntl_res & libc::O_NONBLOCK == libc::O_NONBLOCK);
}
/// Test close-on-exec on new sockets via SockFlag::SOCK_CLOEXEC
#[cfg(any(target_os = "android",
target_os = "dragonfly",
target_os = "freebsd",
target_os = "linux",
target_os = "netbsd",
target_os = "openbsd"))]
#[test]
pub fn test_sockflag_cloexec() {
use libc;
use nix::fcntl::{fcntl};
use nix::fcntl::FcntlArg::{F_GETFD};
use nix::sys::socket::{socket, AddressFamily, SockType, SockFlag};
/* first, test without SockFlag::SOCK_CLOEXEC */
let sock = socket(AddressFamily::Unix, SockType::Stream, SockFlag::empty(), None)
.expect("socket failed");
let fcntl_res = fcntl(sock, F_GETFD).expect("fcntl failed");
assert!(fcntl_res & libc::FD_CLOEXEC == 0);
/* next, test without SockFlag::SOCK_CLOEXEC */
let sock = socket(AddressFamily::Unix, SockType::Stream, SockFlag::SOCK_CLOEXEC, None)
.expect("socket failed");
let fcntl_res = fcntl(sock, F_GETFD).expect("fcntl failed");
assert!(fcntl_res & libc::FD_CLOEXEC == libc::FD_CLOEXEC);
}
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