/* 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  __cplusplusextern "C" {#endif#if defined(OPENSSL_FIPS)#define FIPS_RAND_SIZE_T int#endiftypedef 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);	} RAND_METHOD;#ifdef BN_DEBUGextern int rand_predictable;#endifint RAND_set_rand_method(const RAND_METHOD *meth);const RAND_METHOD *RAND_get_rand_method(void);#ifndef OPENSSL_NO_ENGINEint RAND_set_rand_engine(ENGINE *engine);#endifRAND_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/* 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_FIPS_RAND_BYTES				 102#define RAND_F_RAND_GET_RAND_METHOD			 101#define RAND_F_SSLEAY_RAND_BYTES			 100/* Reason codes. */#define RAND_R_NON_FIPS_METHOD				 101#define RAND_R_PRNG_ASKING_FOR_TOO_MUCH			 105#define RAND_R_PRNG_NOT_REKEYED				 103#define RAND_R_PRNG_NOT_RESEEDED			 104#define RAND_R_PRNG_NOT_SEEDED				 100#define RAND_R_PRNG_STUCK				 102#ifdef  __cplusplus}#endif#endif