Bug: 188443660

Clone this repo:
  1. c29c02a Make command-fds available to product and vendor am: 79b81d52e8 by Matthew Maurer · 3 months ago main master android-u-beta-1-gpl
  2. 79b81d5 Make command-fds available to product and vendor by Matthew Maurer · 3 months ago
  3. f526691 Update TEST_MAPPING am: b0df4f9fb8 by Jeff Vander Stoep · 4 months ago
  4. b0df4f9 Update TEST_MAPPING by Jeff Vander Stoep · 4 months ago
  5. 12963c8 Update TEST_MAPPING am: f63734e47b by David Brazdil · 4 months ago

command-fds

crates.io page docs.rs page

A library for passing arbitrary file descriptors when spawning child processes.

Example

use command_fds::{CommandFdExt, FdMapping};
use std::fs::File;
use std::os::unix::io::AsRawFd;
use std::process::Command;

// Open a file.
let file = File::open("Cargo.toml").unwrap();

// Prepare to run `ls -l /proc/self/fd` with some FDs mapped.
let mut command = Command::new("ls");
command.arg("-l").arg("/proc/self/fd");
command
    .fd_mappings(vec![
        // Map `file` as FD 3 in the child process.
        FdMapping {
            parent_fd: file.as_raw_fd(),
            child_fd: 3,
        },
        // Map this process's stdin as FD 5 in the child process.
        FdMapping {
            parent_fd: 0,
            child_fd: 5,
        },
    ])
    .unwrap();

// Spawn the child process.
let mut child = command.spawn().unwrap();
child.wait().unwrap();

License

Licensed under the Apache License, Version 2.0.

Contributing

If you want to contribute to the project, see details of how we accept contributions.