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//! Implementation for macOS
use crate::{util_libc::last_os_error, Error};
use core::mem::MaybeUninit;
extern "C" {
// Supported as of macOS 10.12+.
fn getentropy(buf: *mut u8, size: libc::size_t) -> libc::c_int;
}
pub fn getrandom_inner(dest: &mut [MaybeUninit<u8>]) -> Result<(), Error> {
for chunk in dest.chunks_mut(256) {
let ret = unsafe { getentropy(chunk.as_mut_ptr() as *mut u8, chunk.len()) };
if ret != 0 {
return Err(last_os_error());
}
}
Ok(())
}