| /* 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 <magenta/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 = MX_CPRNG_DRAW_MAX_LEN; |
| if (requested < output_bytes_this_pass) { |
| output_bytes_this_pass = requested; |
| } |
| size_t bytes_drawn; |
| mx_status_t status = |
| mx_cprng_draw(out, output_bytes_this_pass, &bytes_drawn); |
| if (status != MX_OK) { |
| abort(); |
| } |
| requested -= bytes_drawn; |
| out += bytes_drawn; |
| } |
| } |
| |
| #endif /* OPENSSL_FUCHSIA && !BORINGSSL_UNSAFE_DETERMINISTIC_MODE */ |