v/vlib/crypto/rand/rand_darwin.c.v

22 lines
622 B
V
Raw Normal View History

// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
2019-07-31 03:24:12 +02:00
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
module rand
2019-08-24 01:48:40 +02:00
#include <Security/SecRandom.h>
2019-07-31 03:24:12 +02:00
#flag darwin -framework Security
fn C.SecRandomCopyBytes(rnd C.SecRandomRef, count size_t, bytes voidptr) int
2019-11-24 04:27:02 +01:00
// read returns an array of `bytes_needed` random bytes read from the OS.
2019-07-31 03:24:12 +02:00
pub fn read(bytes_needed int) ?[]byte {
mut buffer := []byte{ len: bytes_needed }
status := C.SecRandomCopyBytes(C.SecRandomRef(0), bytes_needed, buffer.data)
2019-08-22 23:00:31 +02:00
if status != 0 {
2019-10-24 13:48:20 +02:00
return read_error
2019-07-31 03:24:12 +02:00
}
return buffer
2019-07-31 03:24:12 +02:00
}