| /* Copyright (c) 2017, Google Inc. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ |
| |
| #include <openssl/rand.h> |
| |
| #if defined(OPENSSL_FUCHSIA) && !defined(BORINGSSL_UNSAFE_DETERMINISTIC_MODE) |
| |
| #include <limits.h> |
| #include <stdlib.h> |
| |
| #include <zircon/syscalls.h> |
| |
| #include "../fipsmodule/rand/internal.h" |
| |
| void CRYPTO_sysrand(uint8_t *out, size_t requested) { |
| while (requested > 0) { |
| size_t output_bytes_this_pass = ZX_CPRNG_DRAW_MAX_LEN; |
| if (requested < output_bytes_this_pass) { |
| output_bytes_this_pass = requested; |
| } |
| zx_status_t status = zx_cprng_draw_new(out, output_bytes_this_pass); |
| if (status != ZX_OK) { |
| abort(); |
| } |
| requested -= output_bytes_this_pass; |
| out += output_bytes_this_pass; |
| } |
| } |
| |
| #endif // OPENSSL_FUCHSIA && !BORINGSSL_UNSAFE_DETERMINISTIC_MODE |
