1 /* Copyright (c) 2015, Google Inc. 2 * 3 * Permission to use, copy, modify, and/or distribute this software for any 4 * purpose with or without fee is hereby granted, provided that the above 5 * copyright notice and this permission notice appear in all copies. 6 * 7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ 14 15 #ifndef OPENSSL_HEADER_CRYPTO_RAND_INTERNAL_H 16 #define OPENSSL_HEADER_CRYPTO_RAND_INTERNAL_H 17 18 #if defined(__cplusplus) 19 extern "C" { 20 #endif 21 22 23 /* CRYPTO_sysrand fills |len| bytes at |buf| with entropy from the operating 24 * system. */ 25 void CRYPTO_sysrand(uint8_t *buf, size_t len); 26 27 /* CRYPTO_have_hwrand returns one iff |CRYPTO_hwrand| can be called to generate 28 * hardware entropy. */ 29 int CRYPTO_have_hwrand(void); 30 31 /* CRYPTO_hwrand fills |len| bytes at |buf| with entropy from the hardware. 32 * This function can only be called if |CRYPTO_have_hwrand| returns one. */ 33 void CRYPTO_hwrand(uint8_t *buf, size_t len); 34 35 36 #if defined(__cplusplus) 37 } /* extern C */ 38 #endif 39 40 #endif /* OPENSSL_HEADER_CRYPTO_RAND_INTERNAL_H */ 41