1/*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#ifndef HEADER_RAND_H
11# define HEADER_RAND_H
12
13# include <stdlib.h>
14# include <openssl/ossl_typ.h>
15# include <openssl/e_os2.h>
16
17#ifdef __cplusplus
18extern "C" {
19#endif
20
21/* Already defined in ossl_typ.h */
22/* typedef struct rand_meth_st RAND_METHOD; */
23
24struct rand_meth_st {
25 int (*seed) (const void *buf, int num);
26 int (*bytes) (unsigned char *buf, int num);
27 void (*cleanup) (void);
28 int (*add) (const void *buf, int num, double entropy);
29 int (*pseudorand) (unsigned char *buf, int num);
30 int (*status) (void);
31};
32
33# ifdef BN_DEBUG
34extern int rand_predictable;
35# endif
36
37int RAND_set_rand_method(const RAND_METHOD *meth);
38const RAND_METHOD *RAND_get_rand_method(void);
39# ifndef OPENSSL_NO_ENGINE
40int RAND_set_rand_engine(ENGINE *engine);
41# endif
42RAND_METHOD *RAND_OpenSSL(void);
43#if OPENSSL_API_COMPAT < 0x10100000L
44# define RAND_cleanup() while(0) continue
45#endif
46int RAND_bytes(unsigned char *buf, int num);
47DEPRECATEDIN_1_1_0(int RAND_pseudo_bytes(unsigned char *buf, int num))
48void RAND_seed(const void *buf, int num);
49#if defined(__ANDROID__) && defined(__NDK_FPABI__)
50__NDK_FPABI__ /* __attribute__((pcs("aapcs"))) on ARM */
51#endif
52void RAND_add(const void *buf, int num, double entropy);
53int RAND_load_file(const char *file, long max_bytes);
54int RAND_write_file(const char *file);
55const char *RAND_file_name(char *file, size_t num);
56int RAND_status(void);
57# ifndef OPENSSL_NO_EGD
58int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes);
59int RAND_egd(const char *path);
60int RAND_egd_bytes(const char *path, int bytes);
61# endif
62int RAND_poll(void);
63
64#if defined(_WIN32) && (defined(BASETYPES) || defined(_WINDEF_H))
65/* application has to include <windows.h> in order to use these */
66DEPRECATEDIN_1_1_0(void RAND_screen(void))
67DEPRECATEDIN_1_1_0(int RAND_event(UINT, WPARAM, LPARAM))
68#endif
69
70/* BEGIN ERROR CODES */
71/*
72 * The following lines are auto generated by the script mkerr.pl. Any changes
73 * made after this point may be overwritten when the script is next run.
74 */
75
76int ERR_load_RAND_strings(void);
77
78/* Error codes for the RAND functions. */
79
80/* Function codes. */
81# define RAND_F_RAND_BYTES 100
82
83/* Reason codes. */
84# define RAND_R_PRNG_NOT_SEEDED 100
85
86# ifdef __cplusplus
87}
88# endif
89#endif
90