Mercurial > hg > octave-lojdl > gnulib-hg
annotate lib/base64.h @ 15332:c762e3063952
dtotimespec: new module
* lib/timespec.h (dtotimespec): New decl.
* lib/dtotimespec.c, modules/dtotimespec: New files.
| author | Paul Eggert <eggert@cs.ucla.edu> |
|---|---|
| date | Thu, 30 Jun 2011 15:14:25 -0700 |
| parents | 97fc9a21a8fb |
| children | 6beadb731202 |
| rev | line source |
|---|---|
| 5498 | 1 /* base64.h -- Encode binary data using printable characters. |
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2 Copyright (C) 2004-2006, 2009-2011 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 | |
| 16 along with this program; if not, write to the Free Software Foundation, | |
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17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 5498 | 18 |
| 19 #ifndef BASE64_H | |
| 20 # define BASE64_H | |
| 21 | |
| 22 /* Get size_t. */ | |
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23 # include <stddef.h> |
| 5498 | 24 |
| 25 /* Get bool. */ | |
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26 # include <stdbool.h> |
| 5498 | 27 |
| 28 /* This uses that the expression (n+(k-1))/k means the smallest | |
| 29 integer >= n/k, i.e., the ceiling of n/k. */ | |
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30 # define BASE64_LENGTH(inlen) ((((inlen) + 2) / 3) * 4) |
| 5498 | 31 |
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32 struct base64_decode_context |
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33 { |
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34 unsigned int i; |
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35 char buf[4]; |
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36 }; |
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37 |
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38 extern bool isbase64 (char ch); |
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39 |
| 5498 | 40 extern void base64_encode (const char *restrict in, size_t inlen, |
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41 char *restrict out, size_t outlen); |
| 5498 | 42 |
| 43 extern size_t base64_encode_alloc (const char *in, size_t inlen, char **out); | |
| 44 | |
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45 extern void base64_decode_ctx_init (struct base64_decode_context *ctx); |
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46 |
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47 extern bool base64_decode_ctx (struct base64_decode_context *ctx, |
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48 const char *restrict in, size_t inlen, |
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49 char *restrict out, size_t *outlen); |
| 5498 | 50 |
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51 extern bool base64_decode_alloc_ctx (struct base64_decode_context *ctx, |
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52 const char *in, size_t inlen, |
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53 char **out, size_t *outlen); |
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54 |
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55 #define base64_decode(in, inlen, out, outlen) \ |
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56 base64_decode_ctx (NULL, in, inlen, out, outlen) |
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57 |
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58 #define base64_decode_alloc(in, inlen, out, outlen) \ |
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59 base64_decode_alloc_ctx (NULL, in, inlen, out, outlen) |
| 5498 | 60 |
| 61 #endif /* BASE64_H */ |