Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 1 | #ifndef HEADER_CURL_RAND_H |
| 2 | #define HEADER_CURL_RAND_H |
| 3 | /*************************************************************************** |
| 4 | * _ _ ____ _ |
| 5 | * Project ___| | | | _ \| | |
| 6 | * / __| | | | |_) | | |
| 7 | * | (__| |_| | _ <| |___ |
| 8 | * \___|\___/|_| \_\_____| |
| 9 | * |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 10 | * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al. |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 11 | * |
| 12 | * This software is licensed as described in the file COPYING, which |
| 13 | * you should have received as part of this distribution. The terms |
| 14 | * are also available at https://curl.haxx.se/docs/copyright.html. |
| 15 | * |
| 16 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell |
| 17 | * copies of the Software, and permit persons to whom the Software is |
| 18 | * furnished to do so, under the terms of the COPYING file. |
| 19 | * |
| 20 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| 21 | * KIND, either express or implied. |
| 22 | * |
| 23 | ***************************************************************************/ |
| 24 | |
| 25 | /* |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 26 | * Curl_rand() stores 'num' number of random unsigned characters in the buffer |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 27 | * 'rnd' points to. |
| 28 | * |
| 29 | * If libcurl is built without TLS support or with a TLS backend that lacks a |
| 30 | * proper random API (Gskit, PolarSSL or mbedTLS), this function will use |
| 31 | * "weak" random. |
| 32 | * |
| 33 | * When built *with* TLS support and a backend that offers strong random, it |
| 34 | * will return error if it cannot provide strong random values. |
| 35 | * |
| 36 | * NOTE: 'data' may be passed in as NULL when coming from external API without |
| 37 | * easy handle! |
| 38 | * |
| 39 | */ |
Elliott Hughes | 82be86d | 2017-09-20 17:00:17 -0700 | [diff] [blame] | 40 | CURLcode Curl_rand(struct Curl_easy *data, unsigned char *rnd, size_t num); |
| 41 | |
| 42 | /* Same as above but outputs only random lowercase hex characters. |
| 43 | Does NOT terminate.*/ |
| 44 | CURLcode Curl_rand_hex(struct Curl_easy *data, unsigned char *rnd, |
| 45 | size_t num); |
Elliott Hughes | cee0338 | 2017-06-23 12:17:18 -0700 | [diff] [blame] | 46 | |
| 47 | #endif /* HEADER_CURL_RAND_H */ |