Function cfmakeraw

src/backend/libc/termios/syscalls.rs:495–510

(termios: &mut Termios)

#[cfg(not(any(target_os = "espidf", target_os = "nto", target_os = "wasi")))]
#[inline]
pub(crate) fn cfmakeraw(termios: &mut Termios) {
    unsafe {
        // On AIX, cfmakeraw() has a return type of 'int' instead of 'void'.
        // If the argument 'termios' is NULL, it returns -1; otherwise, it returns 0.
        // We believe it is safe to ignore the return value.
        #[cfg(target_os = "aix")]
        {
            let _ = c::cfmakeraw(as_mut_ptr(termios).cast());
        }

        #[cfg(not(target_os = "aix"))]
        {
            c::cfmakeraw(as_mut_ptr(termios).cast());
        }
    }
}

pub(crate) fn isatty(fd: BorrowedFd<'_>) -> bool {
    // Use the return value of `isatty` alone. We don't check `errno` because