Mercurial > hg > octave-nkf > gnulib-hg
annotate lib/base64.h @ 17907:0a1c2535cad9
euidaccess: Fix Android build
* modules/euidaccess (Depends-on): Add fcntl-h to ensure that
AT_EACCESS gets declared.
| author | Kevin Cernekee <cernekee@google.com> |
|---|---|
| date | Wed, 11 Feb 2015 15:22:54 -0800 |
| parents | ab58d4870664 |
| children |
| rev | line source |
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| 5498 | 1 /* base64.h -- Encode binary data using printable characters. |
| 17848 | 2 Copyright (C) 2004-2006, 2009-2015 Free Software Foundation, Inc. |
| 5498 | 3 Written by Simon Josefsson. |
| 4 | |
| 5 This program is free software; you can redistribute it and/or modify | |
| 6 it under the terms of the GNU General Public License as published by | |
| 7 the Free Software Foundation; either version 2, or (at your option) | |
| 8 any later version. | |
| 9 | |
| 10 This program is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 GNU General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU General Public License | |
|
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16 along with this program; if not, see <http://www.gnu.org/licenses/>. */ |
| 5498 | 17 |
| 18 #ifndef BASE64_H | |
| 19 # define BASE64_H | |
| 20 | |
| 21 /* Get size_t. */ | |
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22 # include <stddef.h> |
| 5498 | 23 |
| 24 /* Get bool. */ | |
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25 # include <stdbool.h> |
| 5498 | 26 |
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27 # ifdef __cplusplus |
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28 extern "C" { |
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29 # endif |
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30 |
| 5498 | 31 /* This uses that the expression (n+(k-1))/k means the smallest |
| 32 integer >= n/k, i.e., the ceiling of n/k. */ | |
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33 # define BASE64_LENGTH(inlen) ((((inlen) + 2) / 3) * 4) |
| 5498 | 34 |
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35 struct base64_decode_context |
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36 { |
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37 unsigned int i; |
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38 char buf[4]; |
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39 }; |
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40 |
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41 extern bool isbase64 (char ch) _GL_ATTRIBUTE_CONST; |
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42 |
| 5498 | 43 extern void base64_encode (const char *restrict in, size_t inlen, |
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44 char *restrict out, size_t outlen); |
| 5498 | 45 |
| 46 extern size_t base64_encode_alloc (const char *in, size_t inlen, char **out); | |
| 47 | |
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48 extern void base64_decode_ctx_init (struct base64_decode_context *ctx); |
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49 |
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50 extern bool base64_decode_ctx (struct base64_decode_context *ctx, |
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51 const char *restrict in, size_t inlen, |
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52 char *restrict out, size_t *outlen); |
| 5498 | 53 |
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54 extern bool base64_decode_alloc_ctx (struct base64_decode_context *ctx, |
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55 const char *in, size_t inlen, |
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56 char **out, size_t *outlen); |
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57 |
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58 #define base64_decode(in, inlen, out, outlen) \ |
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59 base64_decode_ctx (NULL, in, inlen, out, outlen) |
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60 |
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61 #define base64_decode_alloc(in, inlen, out, outlen) \ |
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62 base64_decode_alloc_ctx (NULL, in, inlen, out, outlen) |
| 5498 | 63 |
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64 # ifdef __cplusplus |
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65 } |
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66 # endif |
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67 |
| 5498 | 68 #endif /* BASE64_H */ |