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Member "msmtp-1.8.5/src/base64.h" (12 Dec 2018, 2157 Bytes) of package /linux/privat/msmtp-1.8.5.tar.xz:


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    1 /* base64.h -- Encode binary data using printable characters.
    2    Copyright (C) 2004-2006, 2009-2018 Free Software Foundation, Inc.
    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, see <https://www.gnu.org/licenses/>.  */
   17 
   18 #ifndef BASE64_H
   19 # define BASE64_H
   20 
   21 /* Get size_t. */
   22 # include <stddef.h>
   23 
   24 /* Get bool. */
   25 # include <stdbool.h>
   26 
   27 # ifdef __cplusplus
   28 extern "C" {
   29 # endif
   30 
   31 /* This uses that the expression (n+(k-1))/k means the smallest
   32    integer >= n/k, i.e., the ceiling of n/k.  */
   33 # define BASE64_LENGTH(inlen) ((((inlen) + 2) / 3) * 4)
   34 
   35 struct base64_decode_context
   36 {
   37   unsigned int i;
   38   char buf[4];
   39 };
   40 
   41 extern bool isbase64 (char ch);
   42 
   43 extern void base64_encode (const char *in, size_t inlen,
   44                            char *out, size_t outlen);
   45 
   46 extern size_t base64_encode_alloc (const char *in, size_t inlen, char **out);
   47 
   48 extern void base64_decode_ctx_init (struct base64_decode_context *ctx);
   49 
   50 extern bool base64_decode_ctx (struct base64_decode_context *ctx,
   51                                const char *in, size_t inlen,
   52                                char *out, size_t *outlen);
   53 
   54 extern bool base64_decode_alloc_ctx (struct base64_decode_context *ctx,
   55                                      const char *in, size_t inlen,
   56                                      char **out, size_t *outlen);
   57 
   58 #define base64_decode(in, inlen, out, outlen) \
   59         base64_decode_ctx (NULL, in, inlen, out, outlen)
   60 
   61 #define base64_decode_alloc(in, inlen, out, outlen) \
   62         base64_decode_alloc_ctx (NULL, in, inlen, out, outlen)
   63 
   64 # ifdef __cplusplus
   65 }
   66 # endif
   67 
   68 #endif /* BASE64_H */