| /* Copyright (c) 2015, 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. */ |
| |
| #ifndef OPENSSL_HEADER_CRYPTO_RAND_INTERNAL_H |
| #define OPENSSL_HEADER_CRYPTO_RAND_INTERNAL_H |
| |
| #if defined(__cplusplus) |
| extern "C" { |
| #endif |
| |
| |
| /* CRYPTO_sysrand fills |len| bytes at |buf| with entropy from the operating |
| * system. */ |
| void CRYPTO_sysrand(uint8_t *buf, size_t len); |
| |
| /* CRYPTO_have_hwrand returns one iff |CRYPTO_hwrand| can be called to generate |
| * hardware entropy. */ |
| int CRYPTO_have_hwrand(void); |
| |
| /* CRYPTO_hwrand fills |len| bytes at |buf| with entropy from the hardware. |
| * This function can only be called if |CRYPTO_have_hwrand| returns one. |
| * It returns one on success or zero on hardware failure. */ |
| int CRYPTO_hwrand(uint8_t *buf, size_t len); |
| |
| |
| #if defined(__cplusplus) |
| } /* extern C */ |
| #endif |
| |
| #endif /* OPENSSL_HEADER_CRYPTO_RAND_INTERNAL_H */ |