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// Copyright 2021 Developers of the Rand project.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Implementation for SOLID
use crate::Error;
use core::{mem::MaybeUninit, num::NonZeroU32};
extern "C" {
pub fn SOLID_RNG_SampleRandomBytes(buffer: *mut u8, length: usize) -> i32;
}
pub fn getrandom_inner(dest: &mut [MaybeUninit<u8>]) -> Result<(), Error> {
let ret = unsafe { SOLID_RNG_SampleRandomBytes(dest.as_mut_ptr() as *mut u8, dest.len()) };
if ret >= 0 {
Ok(())
} else {
// ITRON error numbers are always negative, so we negate it so that it
// falls in the dedicated OS error range (1..INTERNAL_START).
Err(NonZeroU32::new((-ret) as u32).unwrap().into())
}
}
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