Function grantpt

src/pty.rs:171–184

(fd: Fd)

/// [`Signal::CHILD`]: crate::process::Signal::CHILD
#[inline]
pub fn grantpt<Fd: AsFd>(fd: Fd) -> io::Result<()> {
    #[cfg(not(linux_kernel))]
    {
        backend::pty::syscalls::grantpt(fd.as_fd())
    }

    // On Linux, we assume the kernel has already granted the needed
    // permissions to the user side of the pseudoterminal.
    #[cfg(linux_kernel)]
    {
        let _ = fd;
        Ok(())
    }
}

/// `ioctl(fd, TIOCGPTPEER)`—Open the user side of a pseudoterminal.
///