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rand.h
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/* crypto/rand/rand.h */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ #ifndef HEADER_RAND_H # define HEADER_RAND_H # include <stdlib.h> # include <openssl/ossl_typ.h> # include <openssl/e_os2.h> # if defined(OPENSSL_SYS_WINDOWS) # include <windows.h> # endif #ifdef __cplusplus extern "C" { #endif # if defined(OPENSSL_FIPS) # define FIPS_RAND_SIZE_T size_t # endif /* Already defined in ossl_typ.h */ /* typedef struct rand_meth_st RAND_METHOD; */ struct rand_meth_st { void (*seed) (const void *buf, int num); int (*bytes) (unsigned char *buf, int num); void (*cleanup) (void); void (*add) (const void *buf, int num, double entropy); int (*pseudorand) (unsigned char *buf, int num); int (*status) (void); }; # ifdef BN_DEBUG extern int rand_predictable; # endif int RAND_set_rand_method(const RAND_METHOD *meth); const RAND_METHOD *RAND_get_rand_method(void); # ifndef OPENSSL_NO_ENGINE int RAND_set_rand_engine(ENGINE *engine); # endif RAND_METHOD *RAND_SSLeay(void); void RAND_cleanup(void); int RAND_bytes(unsigned char *buf, int num); int RAND_pseudo_bytes(unsigned char *buf, int num); void RAND_seed(const void *buf, int num); void RAND_add(const void *buf, int num, double entropy); int RAND_load_file(const char *file, long max_bytes); int RAND_write_file(const char *file); const char *RAND_file_name(char *file, size_t num); int RAND_status(void); int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes); int RAND_egd(const char *path); int RAND_egd_bytes(const char *path, int bytes); int RAND_poll(void); # if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_WIN32) void RAND_screen(void); int RAND_event(UINT, WPARAM, LPARAM); # endif # ifdef OPENSSL_FIPS void RAND_set_fips_drbg_type(int type, int flags); int RAND_init_fips(void); # endif /* BEGIN ERROR CODES */ /* * The following lines are auto generated by the script mkerr.pl. Any changes * made after this point may be overwritten when the script is next run. */ void ERR_load_RAND_strings(void); /* Error codes for the RAND functions. */ /* Function codes. */ # define RAND_F_RAND_GET_RAND_METHOD 101 # define RAND_F_RAND_INIT_FIPS 102 # define RAND_F_SSLEAY_RAND_BYTES 100 /* Reason codes. */ # define RAND_R_DUAL_EC_DRBG_DISABLED 104 # define RAND_R_ERROR_INITIALISING_DRBG 102 # define RAND_R_ERROR_INSTANTIATING_DRBG 103 # define RAND_R_NO_FIPS_RANDOM_METHOD_SET 101 # define RAND_R_PRNG_NOT_SEEDED 100 #ifdef __cplusplus } #endif #endif