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<a href="base64_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * RFC 1521 base64 encoding/decoding</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Copyright (C) 2006-2014, Brainspark B.V.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * This file is part of PolarSSL (http://www.polarssl.org)</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org></span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * This program is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * it under the terms of the GNU General Public License as published by</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * the Free Software Foundation; either version 2 of the License, or</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * (at your option) any later version.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * This program is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * GNU General Public License for more details.</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * You should have received a copy of the GNU General Public License along</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * with this program; if not, write to the Free Software Foundation, Inc.,</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#if !defined(POLARSSL_CONFIG_FILE)</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="config_8h.html">polarssl/config.h</a>"</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor"></span><span class="preprocessor">#include POLARSSL_CONFIG_FILE</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#if defined(POLARSSL_BASE64_C)</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include "<a class="code" href="base64_8h.html">polarssl/base64.h</a>"</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor"></span><span class="preprocessor">#include <basetsd.h></span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">typedef</span> UINT32 uint32_t;</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor"></span><span class="preprocessor">#include <inttypes.h></span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#if defined(POLARSSL_PLATFORM_C)</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="platform_8h.html">polarssl/platform.h</a>"</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor"></span><span class="preprocessor">#define polarssl_printf printf</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> base64_enc_map[64] =</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> {</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="charliteral">'A'</span>, <span class="charliteral">'B'</span>, <span class="charliteral">'C'</span>, <span class="charliteral">'D'</span>, <span class="charliteral">'E'</span>, <span class="charliteral">'F'</span>, <span class="charliteral">'G'</span>, <span class="charliteral">'H'</span>, <span class="charliteral">'I'</span>, <span class="charliteral">'J'</span>,</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="charliteral">'K'</span>, <span class="charliteral">'L'</span>, <span class="charliteral">'M'</span>, <span class="charliteral">'N'</span>, <span class="charliteral">'O'</span>, <span class="charliteral">'P'</span>, <span class="charliteral">'Q'</span>, <span class="charliteral">'R'</span>, <span class="charliteral">'S'</span>, <span class="charliteral">'T'</span>,</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="charliteral">'U'</span>, <span class="charliteral">'V'</span>, <span class="charliteral">'W'</span>, <span class="charliteral">'X'</span>, <span class="charliteral">'Y'</span>, <span class="charliteral">'Z'</span>, <span class="charliteral">'a'</span>, <span class="charliteral">'b'</span>, <span class="charliteral">'c'</span>, <span class="charliteral">'d'</span>,</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="charliteral">'e'</span>, <span class="charliteral">'f'</span>, <span class="charliteral">'g'</span>, <span class="charliteral">'h'</span>, <span class="charliteral">'i'</span>, <span class="charliteral">'j'</span>, <span class="charliteral">'k'</span>, <span class="charliteral">'l'</span>, <span class="charliteral">'m'</span>, <span class="charliteral">'n'</span>,</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="charliteral">'o'</span>, <span class="charliteral">'p'</span>, <span class="charliteral">'q'</span>, <span class="charliteral">'r'</span>, <span class="charliteral">'s'</span>, <span class="charliteral">'t'</span>, <span class="charliteral">'u'</span>, <span class="charliteral">'v'</span>, <span class="charliteral">'w'</span>, <span class="charliteral">'x'</span>,</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="charliteral">'y'</span>, <span class="charliteral">'z'</span>, <span class="charliteral">'0'</span>, <span class="charliteral">'1'</span>, <span class="charliteral">'2'</span>, <span class="charliteral">'3'</span>, <span class="charliteral">'4'</span>, <span class="charliteral">'5'</span>, <span class="charliteral">'6'</span>, <span class="charliteral">'7'</span>,</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="charliteral">'8'</span>, <span class="charliteral">'9'</span>, <span class="charliteral">'+'</span>, <span class="charliteral">'/'</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> };</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> base64_dec_map[128] =</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> {</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  127, 127, 127, 127, 127, 127, 127, 127, 127, 127,</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  127, 127, 127, 127, 127, 127, 127, 127, 127, 127,</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  127, 127, 127, 127, 127, 127, 127, 127, 127, 127,</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  127, 127, 127, 127, 127, 127, 127, 127, 127, 127,</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  127, 127, 127, 62, 127, 127, 127, 63, 52, 53,</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  54, 55, 56, 57, 58, 59, 60, 61, 127, 127,</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  127, 64, 127, 127, 127, 0, 1, 2, 3, 4,</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  5, 6, 7, 8, 9, 10, 11, 12, 13, 14,</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  15, 16, 17, 18, 19, 20, 21, 22, 23, 24,</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  25, 127, 127, 127, 127, 127, 127, 26, 27, 28,</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  29, 30, 31, 32, 33, 34, 35, 36, 37, 38,</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  39, 40, 41, 42, 43, 44, 45, 46, 47, 48,</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  49, 50, 51, 127, 127, 127, 127, 127</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> };</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment"> * Encode a buffer into base64 format</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="keywordtype">int</span> <a class="code" href="base64_8h.html#a7c33d8904e1ace023ffdebe04850f585">base64_encode</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *dst, <span class="keywordtype">size_t</span> *dlen,</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *src, <span class="keywordtype">size_t</span> slen )</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> {</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">size_t</span> i, n;</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordtype">int</span> C1, C2, C3;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *p;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span>( slen == 0 )</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  n = ( slen << 3 ) / 6;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">switch</span>( ( slen << 3 ) - ( n * 6 ) )</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  {</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">case</span> 2: n += 3; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">case</span> 4: n += 2; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">default</span>: <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  }</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">if</span>( *dlen < n + 1 )</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  {</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  *dlen = n + 1;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">return</span>( <a class="code" href="base64_8h.html#a9a778cc91797eec1df0548e1f4afd997">POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL</a> );</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  }</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  n = ( slen / 3 ) * 3;</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">for</span>( i = 0, p = dst; i < n; i += 3 )</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  {</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  C1 = *src++;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  C2 = *src++;</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  C3 = *src++;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  *p++ = base64_enc_map[(C1 >> 2) & 0x3F];</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  *p++ = base64_enc_map[(((C1 & 3) << 4) + (C2 >> 4)) & 0x3F];</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  *p++ = base64_enc_map[(((C2 & 15) << 2) + (C3 >> 6)) & 0x3F];</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  *p++ = base64_enc_map[C3 & 0x3F];</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  }</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">if</span>( i < slen )</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  {</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  C1 = *src++;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  C2 = ( ( i + 1 ) < slen ) ? *src++ : 0;</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  *p++ = base64_enc_map[(C1 >> 2) & 0x3F];</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  *p++ = base64_enc_map[(((C1 & 3) << 4) + (C2 >> 4)) & 0x3F];</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">if</span>( ( i + 1 ) < slen )</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  *p++ = base64_enc_map[((C2 & 15) << 2) & 0x3F];</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">else</span> *p++ = <span class="charliteral">'='</span>;</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  *p++ = <span class="charliteral">'='</span>;</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  }</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  *dlen = p - dst;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  *p = 0;</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> }</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment"> * Decode a base64-formatted buffer</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="keywordtype">int</span> <a class="code" href="base64_8h.html#ab7f485e57a533e6d0573c406ffcab378">base64_decode</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *dst, <span class="keywordtype">size_t</span> *dlen,</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *src, <span class="keywordtype">size_t</span> slen )</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> {</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordtype">size_t</span> i, n;</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  uint32_t j, x;</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *p;</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">for</span>( i = n = j = 0; i < slen; i++ )</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  {</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">if</span>( ( slen - i ) >= 2 &&</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  src[i] == <span class="charliteral">'\r'</span> && src[i + 1] == <span class="charliteral">'\n'</span> )</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">if</span>( src[i] == <span class="charliteral">'\n'</span> )</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">if</span>( src[i] == <span class="charliteral">'='</span> && ++j > 2 )</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">return</span>( <a class="code" href="base64_8h.html#a8fac8bb4d3ed57b1beb10bf617664a1d">POLARSSL_ERR_BASE64_INVALID_CHARACTER</a> );</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">if</span>( src[i] > 127 || base64_dec_map[src[i]] == 127 )</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">return</span>( <a class="code" href="base64_8h.html#a8fac8bb4d3ed57b1beb10bf617664a1d">POLARSSL_ERR_BASE64_INVALID_CHARACTER</a> );</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">if</span>( base64_dec_map[src[i]] < 64 && j != 0 )</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordflow">return</span>( <a class="code" href="base64_8h.html#a8fac8bb4d3ed57b1beb10bf617664a1d">POLARSSL_ERR_BASE64_INVALID_CHARACTER</a> );</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  n++;</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  }</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">if</span>( n == 0 )</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  n = ( ( n * 6 ) + 7 ) >> 3;</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  n -= j;</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordflow">if</span>( dst == NULL || *dlen < n )</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  {</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  *dlen = n;</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">return</span>( <a class="code" href="base64_8h.html#a9a778cc91797eec1df0548e1f4afd997">POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL</a> );</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  }</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">for</span>( j = 3, n = x = 0, p = dst; i > 0; i--, src++ )</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  {</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">if</span>( *src == <span class="charliteral">'\r'</span> || *src == <span class="charliteral">'\n'</span> )</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  j -= ( base64_dec_map[*src] == 64 );</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  x = ( x << 6 ) | ( base64_dec_map[*src] & 0x3F );</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> </div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordflow">if</span>( ++n == 4 )</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  {</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  n = 0;</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">if</span>( j > 0 ) *p++ = (<span class="keywordtype">unsigned</span> char)( x >> 16 );</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keywordflow">if</span>( j > 1 ) *p++ = (<span class="keywordtype">unsigned</span> char)( x >> 8 );</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">if</span>( j > 2 ) *p++ = (<span class="keywordtype">unsigned</span> char)( x );</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  }</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  }</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> </div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  *dlen = p - dst;</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> </div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> }</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> </div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="preprocessor">#if defined(POLARSSL_SELF_TEST)</span></div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="preprocessor">#include <string.h></span></div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="preprocessor">#include <stdio.h></span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> base64_test_dec[64] =</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> {</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  0x24, 0x48, 0x6E, 0x56, 0x87, 0x62, 0x5A, 0xBD,</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  0xBF, 0x17, 0xD9, 0xA2, 0xC4, 0x17, 0x1A, 0x01,</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  0x94, 0xED, 0x8F, 0x1E, 0x11, 0xB3, 0xD7, 0x09,</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  0x0C, 0xB6, 0xE9, 0x10, 0x6F, 0x22, 0xEE, 0x13,</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  0xCA, 0xB3, 0x07, 0x05, 0x76, 0xC9, 0xFA, 0x31,</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  0x6C, 0x08, 0x34, 0xFF, 0x8D, 0xC2, 0x6C, 0x38,</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  0x00, 0x43, 0xE9, 0x54, 0x97, 0xAF, 0x50, 0x4B,</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  0xD1, 0x41, 0xBA, 0x95, 0x31, 0x5A, 0x0B, 0x97</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> };</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> base64_test_enc[] =</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="stringliteral">"JEhuVodiWr2/F9mixBcaAZTtjx4Rs9cJDLbpEG8i7hPK"</span></div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="stringliteral">"swcFdsn6MWwINP+Nwmw4AEPpVJevUEvRQbqVMVoLlw=="</span>;</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> </div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment"> * Checkup routine</span></div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="keywordtype">int</span> <a class="code" href="base64_8h.html#a469652530cde1badbb67385c2fe3b9ac">base64_self_test</a>( <span class="keywordtype">int</span> verbose )</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> {</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordtype">size_t</span> len;</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *src;</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> buffer[128];</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> </div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">" Base64 encoding test: "</span> );</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> </div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  len = <span class="keyword">sizeof</span>( buffer );</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  src = base64_test_dec;</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> </div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">if</span>( <a class="code" href="base64_8h.html#a7c33d8904e1ace023ffdebe04850f585">base64_encode</a>( buffer, &len, src, 64 ) != 0 ||</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  memcmp( base64_test_enc, buffer, 88 ) != 0 )</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  {</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"failed\n"</span> );</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> </div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  }</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"passed\n Base64 decoding test: "</span> );</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> </div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  len = <span class="keyword">sizeof</span>( buffer );</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  src = base64_test_enc;</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> </div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordflow">if</span>( <a class="code" href="base64_8h.html#ab7f485e57a533e6d0573c406ffcab378">base64_decode</a>( buffer, &len, src, 88 ) != 0 ||</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  memcmp( base64_test_dec, buffer, 64 ) != 0 )</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  {</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"failed\n"</span> );</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span> </div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  }</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> </div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keywordflow">if</span>( verbose != 0 )</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <a class="code" href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a>( <span class="stringliteral">"passed\n\n"</span> );</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> </div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> }</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span> </div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_SELF_TEST */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="preprocessor">#endif </span><span class="comment">/* POLARSSL_BASE64_C */</span><span class="preprocessor"></span></div>
<div class="ttc" id="base64_8h_html_ab7f485e57a533e6d0573c406ffcab378"><div class="ttname"><a href="base64_8h.html#ab7f485e57a533e6d0573c406ffcab378">base64_decode</a></div><div class="ttdeci">int base64_decode(unsigned char *dst, size_t *dlen, const unsigned char *src, size_t slen)</div><div class="ttdoc">Decode a base64-formatted buffer. </div></div>
<div class="ttc" id="test__suite__aes_8cbc_8c_html_afc6a7362c0f0c9cfa8fc76b3281e2b37"><div class="ttname"><a href="test__suite__aes_8cbc_8c.html#afc6a7362c0f0c9cfa8fc76b3281e2b37">polarssl_printf</a></div><div class="ttdeci">#define polarssl_printf</div><div class="ttdef"><b>Definition:</b> <a href="test__suite__aes_8cbc_8c_source.html#l00309">test_suite_aes.cbc.c:309</a></div></div>
<div class="ttc" id="config_8h_html"><div class="ttname"><a href="config_8h.html">config.h</a></div><div class="ttdoc">Configuration options (set of defines) </div></div>
<div class="ttc" id="platform_8h_html"><div class="ttname"><a href="platform_8h.html">platform.h</a></div><div class="ttdoc">PolarSSL Platform abstraction layer. </div></div>
<div class="ttc" id="base64_8h_html_a469652530cde1badbb67385c2fe3b9ac"><div class="ttname"><a href="base64_8h.html#a469652530cde1badbb67385c2fe3b9ac">base64_self_test</a></div><div class="ttdeci">int base64_self_test(int verbose)</div><div class="ttdoc">Checkup routine. </div></div>
<div class="ttc" id="base64_8h_html_a9a778cc91797eec1df0548e1f4afd997"><div class="ttname"><a href="base64_8h.html#a9a778cc91797eec1df0548e1f4afd997">POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL</a></div><div class="ttdeci">#define POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL</div><div class="ttdoc">Output buffer too small. </div><div class="ttdef"><b>Definition:</b> <a href="base64_8h_source.html#l00032">base64.h:32</a></div></div>
<div class="ttc" id="base64_8h_html"><div class="ttname"><a href="base64_8h.html">base64.h</a></div><div class="ttdoc">RFC 1521 base64 encoding/decoding. </div></div>
<div class="ttc" id="base64_8h_html_a8fac8bb4d3ed57b1beb10bf617664a1d"><div class="ttname"><a href="base64_8h.html#a8fac8bb4d3ed57b1beb10bf617664a1d">POLARSSL_ERR_BASE64_INVALID_CHARACTER</a></div><div class="ttdeci">#define POLARSSL_ERR_BASE64_INVALID_CHARACTER</div><div class="ttdoc">Invalid character in input. </div><div class="ttdef"><b>Definition:</b> <a href="base64_8h_source.html#l00033">base64.h:33</a></div></div>
<div class="ttc" id="base64_8h_html_a7c33d8904e1ace023ffdebe04850f585"><div class="ttname"><a href="base64_8h.html#a7c33d8904e1ace023ffdebe04850f585">base64_encode</a></div><div class="ttdeci">int base64_encode(unsigned char *dst, size_t *dlen, const unsigned char *src, size_t slen)</div><div class="ttdoc">Encode a buffer into base64 format. </div></div>
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