pty

The pty crate provides pty::fork(). That makes a parent process fork with new pseudo-terminal (PTY).

This crate depends on followings:

• libc library
• POSIX environment

Usage

Add this to your Cargo.toml:

[dependencies]
pty = "0.3"

pty::fork()

This function returns pty::Child. It represents the child process and its PTY.

For example, the following code spawns tty(1) command by pty::fork() and outputs the result of the command.

use std::io::Read;
use std::process::Command;

fn main() {
    let mut master = pty::fork(|child| {
        // Child process just execs `tty`
        Command::new("tty").status().expect("could not execute tty");
        // Recommended way to exit child process but `panic!()` and
        // `std::process::exit()` are also fine. Just be a kind soul and call
        // `drop(child)` before you leave if you either of those two options.
        return 0;
    });

    // Read output via PTY master
    let mut output = String::new();
    let _ = master.pty.read_to_string(&mut output).unwrap();
    println!("child tty is: {}", output.trim());
}

When run this, we get new PTY in the child process.

$ tty
/dev/pts/5
$ cargo run
    Running `target/debug/example`
child tty is: /dev/pts/8

Documentation

API documentation for latest version: http://hibariya.github.io/pty-rs/pty/index.html

License

Copyright (c) 2015 Hika Hibariya

Distributed under the MIT License.