//! 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(()) | |
} |