| // Copyright 2018 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 WASI |
| use crate::Error; |
| use core::num::NonZeroU32; |
| use wasi::random_get; |
| |
| pub fn getrandom_inner(dest: &mut [u8]) -> Result<(), Error> { |
| unsafe { random_get(dest.as_mut_ptr(), dest.len()) }.map_err(|e: wasi::Error| { |
| // convert wasi's Error into getrandom's NonZeroU32 error |
| NonZeroU32::new(e.raw_error() as u32).unwrap().into() |
| }) |
| } |
