1 /* crypto/rand/rand.h */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
60 # define HEADER_RAND_H
63 # include <openssl/ossl_typ.h>
64 # include <openssl/e_os2.h>
66 # if defined(OPENSSL_SYS_WINDOWS)
74 # if defined(OPENSSL_FIPS)
75 # define FIPS_RAND_SIZE_T int
78 /* Already defined in ossl_typ.h */
79 /* typedef struct rand_meth_st RAND_METHOD; */
82 void (*seed) (const void *buf, int num);
83 int (*bytes) (unsigned char *buf, int num);
84 void (*cleanup) (void);
85 void (*add) (const void *buf, int num, double entropy);
86 int (*pseudorand) (unsigned char *buf, int num);
91 extern int rand_predictable;
94 int RAND_set_rand_method(const RAND_METHOD *meth);
95 const RAND_METHOD *RAND_get_rand_method(void);
96 # ifndef OPENSSL_NO_ENGINE
97 int RAND_set_rand_engine(ENGINE *engine);
99 RAND_METHOD *RAND_SSLeay(void);
100 void RAND_cleanup(void);
101 int RAND_bytes(unsigned char *buf, int num);
102 int RAND_pseudo_bytes(unsigned char *buf, int num);
103 void RAND_seed(const void *buf, int num);
104 void RAND_add(const void *buf, int num, double entropy);
105 int RAND_load_file(const char *file, long max_bytes);
106 int RAND_write_file(const char *file);
107 const char *RAND_file_name(char *file, size_t num);
108 int RAND_status(void);
109 int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes);
110 int RAND_egd(const char *path);
111 int RAND_egd_bytes(const char *path, int bytes);
113 # ifndef OPENSSL_NO_ENGINE
115 void int_RAND_init_engine_callbacks(void);
116 void int_RAND_set_callbacks(int (*set_rand_func) (const RAND_METHOD *meth,
117 const RAND_METHOD **pmeth),
118 const RAND_METHOD *(*get_rand_func) (const
124 # if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_WIN32)
126 void RAND_screen(void);
127 int RAND_event(UINT, WPARAM, LPARAM);
131 /* BEGIN ERROR CODES */
133 * The following lines are auto generated by the script mkerr.pl. Any changes
134 * made after this point may be overwritten when the script is next run.
136 void ERR_load_RAND_strings(void);
138 /* Error codes for the RAND functions. */
140 /* Function codes. */
141 # define RAND_F_ENG_RAND_GET_RAND_METHOD 108
142 # define RAND_F_FIPS_RAND 103
143 # define RAND_F_FIPS_RAND_BYTES 102
144 # define RAND_F_FIPS_RAND_GET_RAND_METHOD 109
145 # define RAND_F_FIPS_RAND_SET_DT 106
146 # define RAND_F_FIPS_SET_DT 104
147 # define RAND_F_FIPS_SET_PRNG_SEED 107
148 # define RAND_F_FIPS_SET_TEST_MODE 105
149 # define RAND_F_RAND_GET_RAND_METHOD 101
150 # define RAND_F_SSLEAY_RAND_BYTES 100
153 # define RAND_R_NON_FIPS_METHOD 105
154 # define RAND_R_NOT_IN_TEST_MODE 106
155 # define RAND_R_NO_KEY_SET 107
156 # define RAND_R_PRNG_ASKING_FOR_TOO_MUCH 101
157 # define RAND_R_PRNG_ERROR 108
158 # define RAND_R_PRNG_KEYED 109
159 # define RAND_R_PRNG_NOT_REKEYED 102
160 # define RAND_R_PRNG_NOT_RESEEDED 103
161 # define RAND_R_PRNG_NOT_SEEDED 100
162 # define RAND_R_PRNG_SEED_MUST_NOT_MATCH_KEY 110
163 # define RAND_R_PRNG_STUCK 104