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/* 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 */
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