rand.h revision 68651 
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#ifdef  __cplusplus
63extern "C" {
64#endif
65
66typedef struct rand_meth_st
67	{
68	void (*seed)(const void *buf, int num);
69	int (*bytes)(unsigned char *buf, int num);
70	void (*cleanup)(void);
71	void (*add)(const void *buf, int num, double entropy);
72	int (*pseudorand)(unsigned char *buf, int num);
73	int (*status)(void);
74	} RAND_METHOD;
75
76#ifdef BN_DEBUG
77extern int rand_predictable;
78#endif
79
80void RAND_set_rand_method(RAND_METHOD *meth);
81RAND_METHOD *RAND_get_rand_method(void );
82RAND_METHOD *RAND_SSLeay(void);
83void RAND_cleanup(void );
84int  RAND_bytes(unsigned char *buf,int num);
85int  RAND_pseudo_bytes(unsigned char *buf,int num);
86void RAND_seed(const void *buf,int num);
87void RAND_add(const void *buf,int num,double entropy);
88int  RAND_load_file(const char *file,long max_bytes);
89int  RAND_write_file(const char *file);
90const char *RAND_file_name(char *file,int num);
91int RAND_status(void);
92int RAND_egd(const char *path);
93int RAND_egd_bytes(const char *path,int bytes);
94void ERR_load_RAND_strings(void);
95int RAND_poll(void);
96
97#ifdef  __cplusplus
98}
99#endif
100
101#if defined(WINDOWS) || defined(WIN32)
102#include <windows.h>
103
104#ifdef  __cplusplus
105extern "C" {
106#endif
107
108void RAND_screen(void);
109int RAND_event(UINT, WPARAM, LPARAM);
110
111#ifdef  __cplusplus
112}
113#endif
114#endif
115
116/* BEGIN ERROR CODES */
117/* The following lines are auto generated by the script mkerr.pl. Any changes
118 * made after this point may be overwritten when the script is next run.
119 */
120
121/* Error codes for the RAND functions. */
122
123/* Function codes. */
124#define RAND_F_SSLEAY_RAND_BYTES			 100
125
126/* Reason codes. */
127#define RAND_R_PRNG_NOT_SEEDED				 100
128
129#endif
130
131