| // 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::num::NonZeroU32; |
| |
| extern "C" { |
| pub fn SOLID_RNG_SampleRandomBytes(buffer: *mut u8, length: usize) -> i32; |
| } |
| |
| pub fn getrandom_inner(dest: &mut [u8]) -> Result<(), Error> { |
| let ret = unsafe { SOLID_RNG_SampleRandomBytes(dest.as_mut_ptr(), 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()) |
| } |
| } |
