| // 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 OpenBSD |
| use crate::{util_libc::last_os_error, Error}; |
| |
| pub fn getrandom_inner(dest: &mut [u8]) -> Result<(), Error> { |
| // getentropy(2) was added in OpenBSD 5.6, so we can use it unconditionally. |
| for chunk in dest.chunks_mut(256) { |
| let ret = unsafe { libc::getentropy(chunk.as_mut_ptr() as *mut libc::c_void, chunk.len()) }; |
| if ret == -1 { |
| return Err(last_os_error()); |
| } |
| } |
| Ok(()) |
| } |
