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use crate::error::*;
use std::os::unix::io::{FromRawFd as _, IntoRawFd as _};
pub struct Pty {
master: std::fs::File,
slave: std::path::PathBuf,
}
impl Pty {
pub fn new() -> Result<Self> {
let master = nix::pty::posix_openpt(
nix::fcntl::OFlag::O_RDWR | nix::fcntl::OFlag::O_NOCTTY,
)?;
nix::pty::grantpt(&master)?;
nix::pty::unlockpt(&master)?;
let slave = nix::pty::ptsname_r(&master)?.into();
let master_fd = master.into_raw_fd();
let master = unsafe { std::fs::File::from_raw_fd(master_fd) };
Ok(Self { master, slave })
}
pub fn master(&self) -> &std::fs::File {
&self.master
}
pub fn slave(&self) -> Result<std::fs::File> {
Ok(std::fs::OpenOptions::new()
.read(true)
.write(true)
.open(&self.slave)?)
}
}
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