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