1 /*
2 * Copyright (c) 2025 Google Inc. All rights reserved
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files
6 * (the "Software"), to deal in the Software without restriction,
7 * including without limitation the rights to use, copy, modify, merge,
8 * publish, distribute, sublicense, and/or sell copies of the Software,
9 * and to permit persons to whom the Software is furnished to do so,
10 * subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23
24 #![no_std]
25
26 mod sys {
27 #![allow(dead_code)]
28 #![allow(non_camel_case_types)]
29 include!(env!("BINDGEN_INC_FILE"));
30 }
31
rand_get_size(max: usize) -> usize32 pub fn rand_get_size(max: usize) -> usize {
33 // Safety: input and output are primitive values
34 unsafe { sys::rand_get_size(max) }
35 }
36
rand_get_bytes(slice: &mut [u8])37 pub fn rand_get_bytes(slice: &mut [u8]) {
38 // Safety: we pass in the slice as a pointer/size pair
39 unsafe {
40 sys::rand_get_bytes(slice.as_mut_ptr(), slice.len());
41 }
42 }
43
44 // TODO: implement core::random::RandomSource when it lands
45