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