Bug: 188443660

Clone this repo:
  1. bad4ff2 Update TEST_MAPPING by David LeGare · 3 months ago master
  2. 1fa1dba Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: 2c51e94c76 am: 9f1b6052ba am: dc60a39166 by Joel Galenson · 5 months ago
  3. dc60a39 Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: 2c51e94c76 am: 9f1b6052ba by Joel Galenson · 5 months ago
  4. 9f1b605 Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: 2c51e94c76 by Joel Galenson · 5 months ago
  5. 2c51e94 Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." by Joel Galenson · 5 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.