1be2ec6756
Since the caller must check for CRYPTO_hwrand failures anyway, there's not much point in doing the CRYPTO_have_hwrand check externally. (As a bonus, CRYPTO_hwrand no longer compiles to abort() on ARM, so linker deduplicating won't confuse Chrome's crash reporter...) Change-Id: I2191d835fbda5b70812f14cd9a873a5e35c30c6d Reviewed-on: https://boringssl-review.googlesource.com/5630 Reviewed-by: Adam Langley <agl@google.com>
39 lines
1.4 KiB
C
39 lines
1.4 KiB
C
/* Copyright (c) 2015, 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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#ifndef OPENSSL_HEADER_CRYPTO_RAND_INTERNAL_H
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#define OPENSSL_HEADER_CRYPTO_RAND_INTERNAL_H
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/* CRYPTO_sysrand fills |len| bytes at |buf| with entropy from the operating
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* system. */
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void CRYPTO_sysrand(uint8_t *buf, size_t len);
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/* CRYPTO_hwrand fills |len| bytes at |buf| with entropy from the hardware.
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* This function can only be called if |CRYPTO_have_hwrand| returns one. It
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* returns one on success or zero on hardware failure or if hardware support is
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* unavailable. */
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int CRYPTO_hwrand(uint8_t *buf, size_t len);
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#if defined(__cplusplus)
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} /* extern C */
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#endif
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#endif /* OPENSSL_HEADER_CRYPTO_RAND_INTERNAL_H */
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