| // 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::wasi_snapshot_preview1::random_get; |
| |
| pub fn getrandom_inner(dest: &mut [u8]) -> Result<(), Error> { |
| match unsafe { random_get(dest.as_mut_ptr() as i32, dest.len() as i32) } { |
| 0 => Ok(()), |
| err => Err(unsafe { NonZeroU32::new_unchecked(err as u32) }.into()), |
| } |
| } |
