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annotate base64.h @ 1:5afdb14df924

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sci: add support for storing results
author David Demelier <markand@malikania.fr>
date Tue, 08 Jun 2021 08:40:01 +0200
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5afdb14df924 sci: add support for storing results
David Demelier <markand@malikania.fr>
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1 /*
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2 * base64.h -- base64 encoding and decoding
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3 *
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4 * Copyright (c) 2013-2021 David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #ifndef BASE64_H
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20 #define BASE64_H
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21
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22 #include <stddef.h>
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23
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24 #if defined(__cplusplus)
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25 extern "C" {
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26 #endif
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27
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28 #define B64_ENCODE_LENGTH(x) (4 * ((x) / 3 + 1))
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29 #define B64_DECODE_LENGTH(x) (3 * ((x) / 4))
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30
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31 int
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32 b64_isbase64(unsigned char ch);
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33
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34 int
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35 b64_isvalid(unsigned char ch);
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36
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37 unsigned char
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38 b64_lookup(unsigned char value);
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39
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40 unsigned char
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41 b64_rlookup(unsigned char ch);
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42
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43 size_t
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44 b64_encode(const char *src, size_t srcsz, char *dst, size_t dstsz);
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45
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46 size_t
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47 b64_decode(const char *src, size_t srcsz, char *dst, size_t dstsz);
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48
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49 #if defined(__cplusplus)
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50 }
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51 #endif
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52
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53 #endif /* !BASE64_H */