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a4a9d97a3e
Previously RAND_get_rand_method was returning a non-const pointer, but it should be const. As with all other such cases, METHOD pointers are stored and returned as "const". The only methods one should be able to alter are methods "local" to the relevant code, in which case a non-const handle to the methods should already exist. This change has been forced by the constifying of the ENGINE code (before which RAND_METHOD was the only method pointer in an ENGINE structure that was not constant).
127 lines
4.8 KiB
C
127 lines
4.8 KiB
C
/* crypto/rand/rand.h */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#ifndef HEADER_RAND_H
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#define HEADER_RAND_H
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#include <stdlib.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct rand_meth_st
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{
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void (*seed)(const void *buf, int num);
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int (*bytes)(unsigned char *buf, int num);
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void (*cleanup)(void);
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void (*add)(const void *buf, int num, double entropy);
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int (*pseudorand)(unsigned char *buf, int num);
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int (*status)(void);
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} RAND_METHOD;
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#ifdef BN_DEBUG
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extern int rand_predictable;
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#endif
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struct engine_st;
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int RAND_set_rand_method(struct engine_st *meth);
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const RAND_METHOD *RAND_get_rand_method(void );
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RAND_METHOD *RAND_SSLeay(void);
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void RAND_cleanup(void );
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int RAND_bytes(unsigned char *buf,int num);
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int RAND_pseudo_bytes(unsigned char *buf,int num);
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void RAND_seed(const void *buf,int num);
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void RAND_add(const void *buf,int num,double entropy);
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int RAND_load_file(const char *file,long max_bytes);
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int RAND_write_file(const char *file);
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const char *RAND_file_name(char *file,size_t num);
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int RAND_status(void);
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int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes);
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int RAND_egd(const char *path);
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int RAND_egd_bytes(const char *path,int bytes);
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void ERR_load_RAND_strings(void);
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int RAND_poll(void);
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#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_WIN32)
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void RAND_screen(void);
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int RAND_event(UINT, WPARAM, LPARAM);
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#endif
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/* BEGIN ERROR CODES */
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/* The following lines are auto generated by the script mkerr.pl. Any changes
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* made after this point may be overwritten when the script is next run.
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*/
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/* Error codes for the RAND functions. */
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/* Function codes. */
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#define RAND_F_SSLEAY_RAND_BYTES 100
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/* Reason codes. */
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#define RAND_R_PRNG_NOT_SEEDED 100
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#ifdef __cplusplus
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}
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#endif
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#endif
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