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annotate liboctave/util/oct-base64.cc @ 21892:8fcc81df840c

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hide gnulib base64 function header * liboctave/wrappers/base64-wrappers.c, liboctave/wrappers/base64-wrappers.h: New files. * liboctave/wrappers/module.mk: Update. * oct-base64.cc: Use wrapper functions
author John W. Eaton <jwe@octave.org>
date Tue, 14 Jun 2016 10:17:32 -0400
parents aba2e6293dd8
children bac0d6f07a3e
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1 /*
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2
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3 Copyright (C) 2012-2015 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if defined (HAVE_CONFIG_H)
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24 # include "config.h"
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25 #endif
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26
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27 #include <algorithm>
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28
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29 #include "Array.h"
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30 #include "base64-wrappers.h"
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31 #include "oct-base64.h"
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32
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33 bool
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34 octave_base64_encode (const char *inc, const size_t inlen, char **out)
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35 {
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36 bool ret = false;
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37
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38 size_t outlen = octave_base64_encode_alloc_wrapper (inc, inlen, out);
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39
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40 if (! out)
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41 {
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42 if (outlen == 0 && inlen != 0)
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43 (*current_liboctave_error_handler)
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44 ("base64_encode: input array too large");
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45 else
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46 (*current_liboctave_error_handler)
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47 ("base64_encode: memory allocation error");
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48 }
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49 else
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50 ret = true;
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51
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52 return ret;
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53 }
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54
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55 Array<double>
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56 octave_base64_decode (const std::string& str)
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57 {
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58 Array<double> retval;
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59
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60 char *out;
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61 size_t outlen;
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62
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63 bool ok = octave_base64_decode_alloc_wrapper (str.data (), str.length (),
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64 &out, &outlen);
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65
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66 if (! ok)
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67 (*current_liboctave_error_handler)
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68 ("base64_decode: input was not valid base64");
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69 if (! out)
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70 (*current_liboctave_error_handler)
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71 ("base64_decode: memory allocation error");
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72
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73 if ((outlen % (sizeof (double) / sizeof (char))) != 0)
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74 {
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75 ::free (out);
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76 (*current_liboctave_error_handler)
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77 ("base64_decode: incorrect input size");
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78 }
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79 else
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80 {
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81 octave_idx_type len = (outlen * sizeof (char)) / sizeof (double);
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82 retval.resize (dim_vector (1, len));
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83 double *dout = reinterpret_cast<double*> (out);
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84 std::copy (dout, dout + len, retval.fortran_vec ());
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85 ::free (out);
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86 }
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87
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88 return retval;
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89 }
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90