com32/libutil/include/base64.h

   1 /* ----------------------------------------------------------------------- *
   2  *
   3  *   Copyright 2005-2008 H. Peter Anvin - All Rights Reserved
   4  *
   5  *   Permission is hereby granted, free of charge, to any person
   6  *   obtaining a copy of this software and associated documentation
   7  *   files (the "Software"), to deal in the Software without
   8  *   restriction, including without limitation the rights to use,
   9  *   copy, modify, merge, publish, distribute, sublicense, and/or
  10  *   sell copies of the Software, and to permit persons to whom
  11  *   the Software is furnished to do so, subject to the following
  12  *   conditions:
  13  *
  14  *   The above copyright notice and this permission notice shall
  15  *   be included in all copies or substantial portions of the Software.
  16  *
  17  *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  19  *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  20  *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  21  *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  22  *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23  *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  24  *   OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  * ----------------------------------------------------------------------- */
  27
  28 /*
  29  * base64.h
  30  *
  31  * Simple routines for handing base64 text
  32  */
  33
  34 #ifndef LIBUTIL_BASE64_H
  35 #define LIBUTIL_BASE64_H
  36
  37 #include <stddef.h>
  38
  39 #define BASE64_PAD      0x10000
  40
  41 /* There is plenty of disagreement w.r.t. the last few characters... */
  42 #define BASE64_MIME     ('+' + ('/' << 8))
  43 #define BASE64_SAFE     ('-' + ('_' << 8))
  44 #define BASE64_CRYPT    ('.' + ('/' << 8))
  45 #define BASE64_URL      ('*' + ('-' << 8))      /* Haven't seen myself */
  46 #define BASE64_REGEX    ('|' + ('-' << 8))      /* Ditto... */
  47
  48 size_t genbase64(char *output, const void *digest, size_t size, int flags);
  49 size_t unbase64(unsigned char *, size_t, const char *);
  50
  51 #endif