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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 int
#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);
#ifndef OPENSSL_NO_ENGINE
#ifdef OPENSSL_FIPS
void int_RAND_init_engine_callbacks(void);
void int_RAND_set_callbacks(
int (*set_rand_func)(const RAND_METHOD *meth,
const RAND_METHOD **pmeth),
const RAND_METHOD *(*get_rand_func)(const RAND_METHOD **pmeth));
#endif
#endif
#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_WIN32)
void RAND_screen(void);
int RAND_event(UINT, WPARAM, LPARAM);
#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_ENG_RAND_GET_RAND_METHOD 108
#define RAND_F_FIPS_RAND 103
#define RAND_F_FIPS_RAND_BYTES 102
#define RAND_F_FIPS_RAND_GET_RAND_METHOD 109
#define RAND_F_FIPS_RAND_SET_DT 106
#define RAND_F_FIPS_SET_DT 104
#define RAND_F_FIPS_SET_PRNG_SEED 107
#define RAND_F_FIPS_SET_TEST_MODE 105
#define RAND_F_RAND_GET_RAND_METHOD 101
#define RAND_F_SSLEAY_RAND_BYTES 100
/* Reason codes. */
#define RAND_R_NON_FIPS_METHOD 105
#define RAND_R_NOT_IN_TEST_MODE 106
#define RAND_R_NO_KEY_SET 107
#define RAND_R_PRNG_ASKING_FOR_TOO_MUCH 101
#define RAND_R_PRNG_ERROR 108
#define RAND_R_PRNG_KEYED 109
#define RAND_R_PRNG_NOT_REKEYED 102
#define RAND_R_PRNG_NOT_RESEEDED 103
#define RAND_R_PRNG_NOT_SEEDED 100
#define RAND_R_PRNG_SEED_MUST_NOT_MATCH_KEY 110
#define RAND_R_PRNG_STUCK 104
#ifdef __cplusplus
}
#endif
#endif
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