6 releases
0.3.0 | Dec 12, 2023 |
---|---|
0.2.3 | Oct 31, 2023 |
0.2.2 | Apr 1, 2022 |
0.2.1 | Aug 12, 2021 |
0.1.0 | May 4, 2021 |
#208 in Unix APIs
97,798 downloads per month
Used in 17 crates
(10 directly)
19KB
284 lines
command-fds
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.
Dependencies
~1.8–10MB
~106K SLoC