[thirdparty/openssl.git] / crypto / rand / rand.h

/* 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

/* Already defined in ossl_typ.h */
/* typedef struct rand_meth_st RAND_METHOD; */

struct rand_meth_st
	{
	int (*seed)(const void *buf, int num);
	int (*bytes)(unsigned char *buf, int num);
	void (*cleanup)(void);
	int (*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
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_FIPS_RAND				 102
#define RAND_F_FIPS_RAND_SET_DT				 103
#define RAND_F_FIPS_SET_PRNG_SEED			 104
#define RAND_F_FIPS_SET_TEST_MODE			 105
#define RAND_F_FIPS_X931_SET_DT				 106
#define RAND_F_RAND_GET_RAND_METHOD			 101
#define RAND_F_SSLEAY_RAND_BYTES			 100

/* Reason codes. */
#define RAND_R_NOT_IN_TEST_MODE				 101
#define RAND_R_NO_KEY_SET				 102
#define RAND_R_PRNG_ERROR				 103
#define RAND_R_PRNG_KEYED				 104
#define RAND_R_PRNG_NOT_SEEDED				 100
#define RAND_R_PRNG_SEED_MUST_NOT_MATCH_KEY		 105
#define RAND_R_PRNG_STUCK				 106

#ifdef  __cplusplus
}
#endif
#endif
Commit	Line	Data
	1	/* crypto/rand/rand.h */
	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
	3	* All rights reserved.
	4	*
	5	* This package is an SSL implementation written
	6	* by Eric Young (eay@cryptsoft.com).
	7	* The implementation was written so as to conform with Netscapes SSL.
	8	*
	9	* This library is free for commercial and non-commercial use as long as
	10	* the following conditions are aheared to. The following conditions
	11	* apply to all code found in this distribution, be it the RC4, RSA,
	12	* lhash, DES, etc., code; not just the SSL code. The SSL documentation
	13	* included with this distribution is covered by the same copyright terms
	14	* except that the holder is Tim Hudson (tjh@cryptsoft.com).
	15	*
	16	* Copyright remains Eric Young's, and as such any Copyright notices in
	17	* the code are not to be removed.
	18	* If this package is used in a product, Eric Young should be given attribution
	19	* as the author of the parts of the library used.
	20	* This can be in the form of a textual message at program startup or
	21	* in documentation (online or textual) provided with the package.
	22	*
	23	* Redistribution and use in source and binary forms, with or without
	24	* modification, are permitted provided that the following conditions
	25	* are met:
	26	* 1. Redistributions of source code must retain the copyright
	27	* notice, this list of conditions and the following disclaimer.
	28	* 2. Redistributions in binary form must reproduce the above copyright
	29	* notice, this list of conditions and the following disclaimer in the
	30	* documentation and/or other materials provided with the distribution.
	31	* 3. All advertising materials mentioning features or use of this software
	32	* must display the following acknowledgement:
	33	* "This product includes cryptographic software written by
	34	* Eric Young (eay@cryptsoft.com)"
	35	* The word 'cryptographic' can be left out if the rouines from the library
	36	* being used are not cryptographic related :-).
	37	* 4. If you include any Windows specific code (or a derivative thereof) from
	38	* the apps directory (application code) you must include an acknowledgement:
	39	* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
	40	*
	41	* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
	42	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	43	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	44	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	45	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	46	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	47	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	48	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	49	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	50	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	51	* SUCH DAMAGE.
	52	*
	53	* The licence and distribution terms for any publically available version or
	54	* derivative of this code cannot be changed. i.e. this code cannot simply be
	55	* copied and put under another distribution licence
	56	* [including the GNU Public Licence.]
	57	*/
	58
	59	#ifndef HEADER_RAND_H
	60	#define HEADER_RAND_H
	61
	62	#include <stdlib.h>
	63	#include <openssl/ossl_typ.h>
	64	#include <openssl/e_os2.h>
	65
	66	#if defined(OPENSSL_SYS_WINDOWS)
	67	#include <windows.h>
	68	#endif
	69
	70	#ifdef __cplusplus
	71	extern "C" {
	72	#endif
	73
	74	/* Already defined in ossl_typ.h */
	75	/* typedef struct rand_meth_st RAND_METHOD; */
	76
	77	struct rand_meth_st
	78	{
	79	int (seed)(const void buf, int num);
	80	int (bytes)(unsigned char buf, int num);
	81	void (*cleanup)(void);
	82	int (add)(const void buf, int num, double entropy);
	83	int (pseudorand)(unsigned char buf, int num);
	84	int (*status)(void);
	85	};
	86
	87	#ifdef BN_DEBUG
	88	extern int rand_predictable;
	89	#endif
	90
	91	int RAND_set_rand_method(const RAND_METHOD *meth);
	92	const RAND_METHOD *RAND_get_rand_method(void);
	93	#ifndef OPENSSL_NO_ENGINE
	94	int RAND_set_rand_engine(ENGINE *engine);
	95	#endif
	96	RAND_METHOD *RAND_SSLeay(void);
	97	void RAND_cleanup(void );
	98	int RAND_bytes(unsigned char *buf,int num);
	99	int RAND_pseudo_bytes(unsigned char *buf,int num);
	100	void RAND_seed(const void *buf,int num);
	101	void RAND_add(const void *buf,int num,double entropy);
	102	int RAND_load_file(const char *file,long max_bytes);
	103	int RAND_write_file(const char *file);
	104	const char RAND_file_name(char file,size_t num);
	105	int RAND_status(void);
	106	int RAND_query_egd_bytes(const char path, unsigned char buf, int bytes);
	107	int RAND_egd(const char *path);
	108	int RAND_egd_bytes(const char *path,int bytes);
	109	int RAND_poll(void);
	110
	111	#if defined(OPENSSL_SYS_WINDOWS) \|\| defined(OPENSSL_SYS_WIN32)
	112
	113	void RAND_screen(void);
	114	int RAND_event(UINT, WPARAM, LPARAM);
	115
	116	#endif
	117
	118	#ifdef OPENSSL_FIPS
	119	int RAND_init_fips(void);
	120	#endif
	121
	122	/* BEGIN ERROR CODES */
	123	/* The following lines are auto generated by the script mkerr.pl. Any changes
	124	* made after this point may be overwritten when the script is next run.
	125	*/
	126	void ERR_load_RAND_strings(void);
	127
	128	/* Error codes for the RAND functions. */
	129
	130	/* Function codes. */
	131	#define RAND_F_FIPS_RAND 102
	132	#define RAND_F_FIPS_RAND_SET_DT 103
	133	#define RAND_F_FIPS_SET_PRNG_SEED 104
	134	#define RAND_F_FIPS_SET_TEST_MODE 105
	135	#define RAND_F_FIPS_X931_SET_DT 106
	136	#define RAND_F_RAND_GET_RAND_METHOD 101
	137	#define RAND_F_SSLEAY_RAND_BYTES 100
	138
	139	/* Reason codes. */
	140	#define RAND_R_NOT_IN_TEST_MODE 101
	141	#define RAND_R_NO_KEY_SET 102
	142	#define RAND_R_PRNG_ERROR 103
	143	#define RAND_R_PRNG_KEYED 104
	144	#define RAND_R_PRNG_NOT_SEEDED 100
	145	#define RAND_R_PRNG_SEED_MUST_NOT_MATCH_KEY 105
	146	#define RAND_R_PRNG_STUCK 106
	147
	148	#ifdef __cplusplus
	149	}
	150	#endif
	151	#endif