| // Copyright 2015 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // ignore-windows |
| // ignore-android |
| // ignore-cloudabi no processes |
| // ignore-emscripten no processes |
| // ignore-haiku |
| |
| #![feature(libc)] |
| |
| extern crate libc; |
| |
| use std::env; |
| use std::fs::File; |
| use std::io; |
| use std::net::{TcpListener, TcpStream, UdpSocket}; |
| use std::os::unix::prelude::*; |
| use std::process::{Command, Stdio}; |
| use std::thread; |
| |
| fn main() { |
| let args = env::args().collect::<Vec<_>>(); |
| if args.len() == 1 { |
| parent() |
| } else { |
| child(&args) |
| } |
| } |
| |
| fn parent() { |
| let file = File::open(env::current_exe().unwrap()).unwrap(); |
| let tcp1 = TcpListener::bind("127.0.0.1:0").unwrap(); |
| let tcp2 = tcp1.try_clone().unwrap(); |
| let addr = tcp1.local_addr().unwrap(); |
| let t = thread::spawn(move || TcpStream::connect(addr).unwrap()); |
| let tcp3 = tcp1.accept().unwrap().0; |
| let tcp4 = t.join().unwrap(); |
| let tcp5 = tcp3.try_clone().unwrap(); |
| let tcp6 = tcp4.try_clone().unwrap(); |
| let udp1 = UdpSocket::bind("127.0.0.1:0").unwrap(); |
| let udp2 = udp1.try_clone().unwrap(); |
| |
| let mut child = Command::new(env::args().next().unwrap()) |
| .arg("100") |
| .stdout(Stdio::piped()) |
| .stdin(Stdio::piped()) |
| .stderr(Stdio::piped()) |
| .spawn().unwrap(); |
| let pipe1 = child.stdin.take().unwrap(); |
| let pipe2 = child.stdout.take().unwrap(); |
| let pipe3 = child.stderr.take().unwrap(); |
| |
| |
| let status = Command::new(env::args().next().unwrap()) |
| .arg(file.as_raw_fd().to_string()) |
| .arg(tcp1.as_raw_fd().to_string()) |
| .arg(tcp2.as_raw_fd().to_string()) |
| .arg(tcp3.as_raw_fd().to_string()) |
| .arg(tcp4.as_raw_fd().to_string()) |
| .arg(tcp5.as_raw_fd().to_string()) |
| .arg(tcp6.as_raw_fd().to_string()) |
| .arg(udp1.as_raw_fd().to_string()) |
| .arg(udp2.as_raw_fd().to_string()) |
| .arg(pipe1.as_raw_fd().to_string()) |
| .arg(pipe2.as_raw_fd().to_string()) |
| .arg(pipe3.as_raw_fd().to_string()) |
| .status() |
| .unwrap(); |
| assert!(status.success()); |
| child.wait().unwrap(); |
| } |
| |
| fn child(args: &[String]) { |
| let mut b = [0u8; 2]; |
| for arg in &args[1..] { |
| let fd: libc::c_int = arg.parse().unwrap(); |
| unsafe { |
| assert_eq!(libc::read(fd, b.as_mut_ptr() as *mut _, 2), -1); |
| assert_eq!(io::Error::last_os_error().raw_os_error(), |
| Some(libc::EBADF)); |
| } |
| } |
| } |