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//! Terminal-related `ioctl` functions.
#![allow(unsafe_code)]
use crate::fd::AsFd;
use crate::{backend, io, ioctl};
use backend::c;
/// `ioctl(fd, TIOCEXCL)`—Enables exclusive mode on a terminal.
///
/// # References
/// - [Linux]
/// - [FreeBSD]
/// - [NetBSD]
/// - [OpenBSD]
///
#[cfg(not(any(windows, target_os = "redox", target_os = "wasi")))]
#[inline]
#[doc(alias = "TIOCEXCL")]
pub fn ioctl_tiocexcl<Fd: AsFd>(fd: Fd) -> io::Result<()> {
// SAFETY: TIOCEXCL is a no-argument setter opcode.
unsafe {
let ctl = ioctl::NoArg::<ioctl::BadOpcode<{ c::TIOCEXCL as _ }>>::new();
ioctl::ioctl(fd, ctl)
}
}
/// `ioctl(fd, TIOCNXCL)`—Disables exclusive mode on a terminal.
///
/// # References
/// - [Linux]
/// - [FreeBSD]
/// - [NetBSD]
/// - [OpenBSD]
///
#[cfg(not(any(windows, target_os = "redox", target_os = "wasi")))]
#[inline]
#[doc(alias = "TIOCNXCL")]
pub fn ioctl_tiocnxcl<Fd: AsFd>(fd: Fd) -> io::Result<()> {
// SAFETY: TIOCNXCL is a no-argument setter opcode.
unsafe {
let ctl = ioctl::NoArg::<ioctl::BadOpcode<{ c::TIOCNXCL as _ }>>::new();
ioctl::ioctl(fd, ctl)
}
}