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#ifndef HEADER_CURL_RAND_H
#define HEADER_CURL_RAND_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
/*
* Curl_rand() stores 'num' number of random unsigned characters in the buffer
* 'rnd' points to.
*
* If libcurl is built without TLS support or with a TLS backend that lacks a
* proper random API (Gskit or mbedTLS), this function will use "weak" random.
*
* When built *with* TLS support and a backend that offers strong random, it
* will return error if it cannot provide strong random values.
*
* NOTE: 'data' may be passed in as NULL when coming from external API without
* easy handle!
*
*/
CURLcode Curl_rand(struct Curl_easy *data, unsigned char *rnd, size_t num);
/*
* Curl_rand_hex() fills the 'rnd' buffer with a given 'num' size with random
* hexadecimal digits PLUS a null-terminating byte. It must be an odd number
* size.
*/
CURLcode Curl_rand_hex(struct Curl_easy *data, unsigned char *rnd,
size_t num);
#ifdef WIN32
/* Random generator shared between the Schannel vtls and Curl_rand*()
functions */
CURLcode Curl_win32_random(unsigned char *entropy, size_t length);
#endif
#endif /* HEADER_CURL_RAND_H */
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