1 | #ifndef HEADER_CURL_RAND_H |
2 | #define HEADER_CURL_RAND_H |
3 | /*************************************************************************** |
4 | * _ _ ____ _ |
5 | * Project ___| | | | _ \| | |
6 | * / __| | | | |_) | | |
7 | * | (__| |_| | _ <| |___ |
8 | * \___|\___/|_| \_\_____| |
9 | * |
10 | * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al. |
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 | /* |
26 | * Curl_rand() stores 'num' number of random unsigned characters in the buffer |
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 or mbedTLS), this function will use "weak" random. |
31 | * |
32 | * When built *with* TLS support and a backend that offers strong random, it |
33 | * will return error if it cannot provide strong random values. |
34 | * |
35 | * NOTE: 'data' may be passed in as NULL when coming from external API without |
36 | * easy handle! |
37 | * |
38 | */ |
39 | CURLcode Curl_rand(struct Curl_easy *data, unsigned char *rnd, size_t num); |
40 | |
41 | /* |
42 | * Curl_rand_hex() fills the 'rnd' buffer with a given 'num' size with random |
43 | * hexadecimal digits PLUS a zero terminating byte. It must be an odd number |
44 | * size. |
45 | */ |
46 | CURLcode Curl_rand_hex(struct Curl_easy *data, unsigned char *rnd, |
47 | size_t num); |
48 | |
49 | #endif /* HEADER_CURL_RAND_H */ |
50 | |