| /* Copyright (c) 2014, 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_WINDOWS) && !defined(BORINGSSL_UNSAFE_DETERMINISTIC_MODE) |
| |
| #include <limits.h> |
| #include <stdlib.h> |
| |
| OPENSSL_MSVC_PRAGMA(warning(push, 3)) |
| |
| #include <windows.h> |
| |
| // #define needed to link in RtlGenRandom(), a.k.a. SystemFunction036. See the |
| // "Community Additions" comment on MSDN here: |
| // http://msdn.microsoft.com/en-us/library/windows/desktop/aa387694.aspx |
| #define SystemFunction036 NTAPI SystemFunction036 |
| #include <ntsecapi.h> |
| #undef SystemFunction036 |
| |
| OPENSSL_MSVC_PRAGMA(warning(pop)) |
| |
| #include "../fipsmodule/rand/internal.h" |
| |
| |
| void CRYPTO_sysrand(uint8_t *out, size_t requested) { |
| while (requested > 0) { |
| ULONG output_bytes_this_pass = ULONG_MAX; |
| if (requested < output_bytes_this_pass) { |
| output_bytes_this_pass = (ULONG)requested; |
| } |
| if (RtlGenRandom(out, output_bytes_this_pass) == FALSE) { |
| abort(); |
| } |
| requested -= output_bytes_this_pass; |
| out += output_bytes_this_pass; |
| } |
| return; |
| } |
| |
| #endif // OPENSSL_WINDOWS && !BORINGSSL_UNSAFE_DETERMINISTIC_MODE |
