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annotate liboctave/oct-md5.cc @ 10405:cc69a17ec801

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remove integer math warnings
author Jaroslav Hajek <highegg@gmail.com>
date Tue, 09 Mar 2010 08:06:30 +0100
parents 07ebe522dac2
children 231e6d1b57d6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2
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eb63fbe60fab update copyright notices
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3 Copyright (C) 2007, 2008, 2009 David Bateman
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4
5fced7a5eee8 [project @ 2007-03-01 17:23:39 by dbateman]
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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 #ifdef 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 <cstdio>
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28
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29 #include <string>
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30 #include <vector>
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31
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32 #include "lo-error.h"
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33 #include "oct-md5.h"
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34 #include "md5.h"
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35
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36 static std::string
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37 oct_md5_result_to_str (const unsigned char *buf)
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38 {
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39 char tmp [32];
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40
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41 for (octave_idx_type i = 0; i < 16; i++)
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42 sprintf (&tmp[2*i], "%02x", buf[i]);
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43
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44 return std::string (tmp, 32);
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45 }
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46
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47 std::string
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48 oct_md5 (const std::string str)
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49 {
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50 unsigned char buf[16];
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51
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52 md5_buffer (str.data (), str.length (), buf);
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53
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54 return oct_md5_result_to_str (buf);
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55 }
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56
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57 std::string
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58 oct_md5_file (const std::string file)
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59 {
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60 std::string retval;
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61
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62 FILE *ifile = fopen (file.c_str (), "rb");
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63
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64 if (ifile)
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65 {
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66 unsigned char buf[16];
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67
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68 if (! md5_stream (ifile, buf))
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69 retval = oct_md5_result_to_str (buf);
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70 else
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71 (*current_liboctave_error_handler) ("internal error in md5_stream");
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72 }
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73 else
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74 (*current_liboctave_error_handler) ("unable to open file `%s' for reading",
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75 file.c_str());
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76
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77 return retval;
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78 }