stdio-override

A Rust library to easily override Stdio file descriptors in Rust

• Documentation

Usage

Add this to your Cargo.toml:

```toml [dependencies] stdio-override = "0.1"

```

and for Rust Edition 2015 add this to your crate root:

rust extern crate stdio_override; In Rust Edition 2018 you can simply do: rust use stdio_override::*;

Here's an example on how to write stdout into a file:

```rust use std::{fs::readtostring, mem}; use stdio_override::StdoutOverride;

fn main() {
    let file_name = "./test.txt";

    let guard = StdoutOverride::override_file(file_name).unwrap();
    println!("12345");
    mem::drop(guard);

    let contents = read_to_string(file_name).unwrap();
    assert_eq!("12345\n", contents);
    println!("Outside!");
}

```

You can do the same with sockets: ```rust use std::{ io::Read, mem, net::{TcpListener, TcpStream}, }; use stdio_override::StdoutOverride;

fn main() {
    let address = ("127.0.0.1", 5543);

    let listener = TcpListener::bind(address).unwrap();
    let socket = TcpStream::connect(address).unwrap();

    let guard = StdoutOverride::override_raw(socket).unwrap();
    println!("12345");
    mem::drop(guard);

    let mut contents = String::new();
    let (mut stream, _) = listener.accept().unwrap();
    stream.read_to_string(&mut contents).unwrap();

    assert_eq!("12345\n", contents);

    println!("Outside!");
}

```