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50 lines
1.9 KiB
C
50 lines
1.9 KiB
C
#ifndef HEADER_CURL_RAND_H
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#define HEADER_CURL_RAND_H
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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/*
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* Curl_rand() stores 'num' number of random unsigned characters in the buffer
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* 'rnd' points to.
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*
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* If libcurl is built without TLS support or with a TLS backend that lacks a
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* proper random API (Gskit or mbedTLS), this function will use "weak" random.
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*
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* When built *with* TLS support and a backend that offers strong random, it
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* will return error if it cannot provide strong random values.
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*
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* NOTE: 'data' may be passed in as NULL when coming from external API without
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* easy handle!
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*
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*/
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CURLcode Curl_rand(struct Curl_easy *data, unsigned char *rnd, size_t num);
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/*
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* Curl_rand_hex() fills the 'rnd' buffer with a given 'num' size with random
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* hexadecimal digits PLUS a zero terminating byte. It must be an odd number
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* size.
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*/
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CURLcode Curl_rand_hex(struct Curl_easy *data, unsigned char *rnd,
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size_t num);
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#endif /* HEADER_CURL_RAND_H */
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