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