/src/test/run-pass/fds-are-cloexec.rs
http://github.com/eholk/rust · Rust · 90 lines · 67 code · 10 blank · 13 comment · 5 complexity · c5253cdc8f5d55efbd1a4655da21cb00 MD5 · raw file
- // 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-emscripten
- // 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));
- }
- }
- }