lib/x509_b64.h

   1 /*
   2  * Copyright (C) 2000-2012 Free Software Foundation, Inc.
   3  *
   4  * Author: Nikos Mavrogiannopoulos
   5  *
   6  * This file is part of GnuTLS.
   7  *
   8  * The GnuTLS is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public License
  10  * as published by the Free Software Foundation; either version 3 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public License
  19  * along with this program.  If not, see <http://www.gnu.org/licenses/>
  20  *
  21  */
  22
  23 int _gnutls_fbase64_encode (const char *msg, const uint8_t * data,
  24                             size_t data_size, gnutls_datum_t* result);
  25 int _gnutls_fbase64_decode (const char *header, const uint8_t * data,
  26                             size_t data_size, gnutls_datum_t* result);
  27
  28 int
  29 _gnutls_base64_decode (const uint8_t * data, size_t data_size,
  30                        gnutls_datum_t * result);
  31
  32 #define B64SIZE( data_size) ((data_size%3==0)?((data_size*4)/3):(4+((data_size/3)*4)))
  33
  34 /* The size for B64 encoding + newlines plus header
  35  */
  36
  37 #define B64FSIZE( hsize, dsize) \
  38         (B64SIZE(dsize) + (hsize) + /*newlines*/ \
  39         B64SIZE(dsize)/64 + (((B64SIZE(dsize) % 64) > 0) ? 1 : 0))