author | sheepluva |
Wed, 01 Apr 2015 02:42:37 +0200 | |
changeset 10883 | 294ef49efdd2 |
parent 8260 | 83d85e32c713 |
permissions | -rw-r--r-- |
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/* base64.h -- Encode binary data using printable characters. |
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Copyright (C) 2004-2006, 2009-2012 Free Software Foundation, Inc. |
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Written by Simon Josefsson. |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2, or (at your option) |
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any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, see <http://www.gnu.org/licenses/>. */ |
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#ifndef BASE64_H |
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# define BASE64_H |
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/* Get size_t. */ |
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# include <stddef.h> |
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/* Get bool. */ |
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# include <stdbool.h> |
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/*! This uses that the expression (n+(k-1))/k means the smallest |
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integer >= n/k, i.e., the ceiling of n/k. */ |
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# define BASE64_LENGTH(inlen) ((((inlen) + 2) / 3) * 4) |
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struct base64_decode_context |
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{ |
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unsigned int i; |
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char buf[4]; |
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}; |
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extern bool isbase64 (char ch); |
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extern void base64_encode (const char *restrict in, size_t inlen, |
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char *restrict out, size_t outlen); |
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extern size_t base64_encode_alloc (const char *in, size_t inlen, char **out); |
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extern void base64_decode_ctx_init (struct base64_decode_context *ctx); |
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extern bool base64_decode_ctx (struct base64_decode_context *ctx, |
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const char *restrict in, size_t inlen, |
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char *restrict out, size_t *outlen); |
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extern bool base64_decode_alloc_ctx (struct base64_decode_context *ctx, |
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const char *in, size_t inlen, |
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char **out, size_t *outlen); |
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#define base64_decode(in, inlen, out, outlen) \ |
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base64_decode_ctx (NULL, in, inlen, out, outlen) |
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#define base64_decode_alloc(in, inlen, out, outlen) \ |
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base64_decode_alloc_ctx (NULL, in, inlen, out, outlen) |
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#endif /* BASE64_H */ |