boringssl/crypto/rand_extra/fuchsia.c
David Benjamin 1d6e36525d Remove CHROMIUM_ROLLING_MAGENTA_TO_ZIRCON scaffolding.
https://chromium-review.googlesource.com/c/chromium/src/+/669139 has
landed.

Bug: chromium:765754
Change-Id: I6f6c52f053698348673eaa1e2574801b3f6b2041
Reviewed-on: https://boringssl-review.googlesource.com/20505
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-09-18 21:34:32 +00:00

44 lines
1.5 KiB
C

/* 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;
}
size_t bytes_drawn;
zx_status_t status =
zx_cprng_draw(out, output_bytes_this_pass, &bytes_drawn);
if (status != ZX_OK) {
abort();
}
requested -= bytes_drawn;
out += bytes_drawn;
}
}
#endif // OPENSSL_FUCHSIA && !BORINGSSL_UNSAFE_DETERMINISTIC_MODE