<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> <head> <title>kmime_codec_base64.cpp Source File</title> <style type="text/css"> .cp-doNotDisplay { display: none; } @media aural, braille, handheld, tty { .cp-doNotDisplay { display: inline; speak: normal; }} .cp-edit { text-align: right; } @media print, embossed { .cp-edit { display: none; }} </style> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <link rel="meta" href="http://www.kde.org/labels.rdf" type="application/rdf+xml" title="ICRA labels" /> <meta name="trademark" content="KDE e.V." /> <meta name="description" content="K Desktop Environment Homepage, KDE.org" /> <meta name="MSSmartTagsPreventParsing" content="true" /> <meta name="robots" content="all" /> <meta name="no-email-collection" content="http://www.unspam.com/noemailcollection" /> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link rel="shortcut icon" href="../../favicon.ico" /><link rel="icon" href="../../favicon.ico" /> <link rel="stylesheet" media="screen" type="text/css" title="KDE Colors" href="../../kde.css" /> <link rel="stylesheet" media="print, embossed" type="text/css" href="../../print.css" /> <link rel="stylesheet" media="screen, aural, handheld, tty, braille" type="text/css" title="Flat" href="../../flat.css" /> <link rel="stylesheet" type="text/css" href="../../doxygen.css" /> <link rel="stylesheet" type="text/css" href="../../tabs.css" /> </head> <body> <ul class="cp-doNotDisplay"> <li><a href="#cp-content" accesskey="2">Skip to content</a></li> <li><a href="#cp-menu" accesskey="5">Skip to link menu</a></li> </ul> <div id="container"> <div id="header"> <div id="header_top"><div><div> <img alt ="" src="../../top-kde.jpg"/> </div></div></div> <div id="header_bottom"> <div id="location"> <ul> <li><a href="http://api.kde.org">KDE API Reference</a></li> <li><a href="../../index.html">kdepimlibs-4.10.5 API Reference</a></li> </ul> </div> <div id="menu"> <ul> <li><a href="http://www.kde.org/">KDE Home</a></li> <li><a href="http://kde.org/contact/">Contact Us</a></li> </ul> </div> </div> </div> <!-- End page header --> <div id="body_wrapper"> <div id="body"> <!-- begin main content --> <div id="right"> <div class="content"> <div id="main"> <div class="clearer"> </div> <h2><a name="content"></a>KMIME Library</h2> <!-- BC --> <div id="top"> <!-- Generated by Doxygen 1.8.3.1 --> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="dir_639a08b2adffb175aad3ef3fe4337a5f.html">kmime</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="headertitle"> <div class="title">kmime_codec_base64.cpp</div> </div> </div><!--header--> <div class="contents"> <a href="kmime__codec__base64_8cpp.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">/* -*- c++ -*-</span></div> <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> kmime_codec_base64.cpp</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"> KMime, the KDE Internet mail/usenet news message library.</span></div> <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> Copyright (c) 2001 Marc Mutz <mutz@kde.org></span></div> <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"></span></div> <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> This library is free software; you can redistribute it and/or</span></div> <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> modify it under the terms of the GNU Library General Public</span></div> <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> License as published by the Free Software Foundation; either</span></div> <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> version 2 of the License, or (at your option) any later version.</span></div> <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"></span></div> <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> This library is distributed in the hope that it will be useful,</span></div> <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div> <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div> <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> Library General Public License for more details.</span></div> <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"></span></div> <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> You should have received a copy of the GNU Library General Public License</span></div> <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> along with this library; see the file COPYING.LIB. If not, write to</span></div> <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span></div> <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> Boston, MA 02110-1301, USA.</span></div> <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">*/</span></div> <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include "<a class="code" href="kmime__codec__base64_8h.html" title="This file is part of the API for handling MIME data and defines the Base64 and RFC2047B Codec classes...">kmime_codec_base64.h</a>"</span></div> <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div> <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include <kdebug.h></span></div> <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div> <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include <cassert></span></div> <div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div> <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">using namespace </span>KMime;</div> <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div> <div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">namespace </span>KMime {</div> <div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div> <div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment">// codec for base64 as specified in RFC 2045</span></div> <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment">//class Base64Codec;</span></div> <div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment">//class Base64Decoder;</span></div> <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment">//class Base64Encoder;</span></div> <div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div> <div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment">// codec for the B encoding as specified in RFC 2047</span></div> <div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment">//class Rfc2047BEncodingCodec;</span></div> <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment">//class Rfc2047BEncodingEncoder;</span></div> <div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment">//class Rfc2047BEncodingDecoder;</span></div> <div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div> <div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment">//@cond PRIVATE</span></div> <div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="keyword">static</span> <span class="keyword">const</span> uchar base64DecodeMap[128] = {</div> <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,</div> <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,</div> <div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div> <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 62, 64, 64, 64, 63,</div> <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 64, 64, 64, 64, 64, 64,</div> <div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div> <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  64, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,</div> <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 64, 64, 64, 64, 64,</div> <div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div> <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  64, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,</div> <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 64, 64, 64, 64, 64</div> <div class="line"><a name="l00066"></a><span class="lineno"> 66</span> };</div> <div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div> <div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> base64EncodeMap[64] = {</div> <div class="line"><a name="l00069"></a><span class="lineno"> 69</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>,</div> <div class="line"><a name="l00070"></a><span class="lineno"> 70</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>, <span class="charliteral">'O'</span>, <span class="charliteral">'P'</span>,</div> <div class="line"><a name="l00071"></a><span class="lineno"> 71</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="l00072"></a><span class="lineno"> 72</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>, <span class="charliteral">'e'</span>, <span class="charliteral">'f'</span>,</div> <div class="line"><a name="l00073"></a><span class="lineno"> 73</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="l00074"></a><span class="lineno"> 74</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>,</div> <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="charliteral">'w'</span>, <span class="charliteral">'x'</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>,</div> <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="charliteral">'4'</span>, <span class="charliteral">'5'</span>, <span class="charliteral">'6'</span>, <span class="charliteral">'7'</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="l00077"></a><span class="lineno"> 77</span> };</div> <div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment">//@endcond</span></div> <div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div> <div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="keyword">class </span>Base64Decoder : <span class="keyword">public</span> <a class="code" href="classKMime_1_1Decoder.html" title="Stateful CTE decoder class.">Decoder</a></div> <div class="line"><a name="l00081"></a><span class="lineno"> 81</span> {</div> <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  uint mStepNo;</div> <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  uchar mOutbits;</div> <div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordtype">bool</span> mSawPadding : 1;</div> <div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div> <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">protected</span>:</div> <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classKMime_1_1Base64Codec.html" title="A class representing the codec for Base64 as specified in RFC2045.">Base64Codec</a>;</div> <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  Base64Decoder( <span class="keywordtype">bool</span> withCRLF=<span class="keyword">false</span> )</div> <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  : <a class="code" href="classKMime_1_1Decoder.html" title="Stateful CTE decoder class.">Decoder</a>( withCRLF ), mStepNo( 0 ), mOutbits( 0 ),</div> <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  mSawPadding( false ) {}</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="keyword">public</span>:</div> <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keyword">virtual</span> ~Base64Decoder() {}</div> <div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div> <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordtype">bool</span> decode( <span class="keyword">const</span> <span class="keywordtype">char</span>* &scursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> send,</div> <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordtype">char</span>* &dcursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend );</div> <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="comment">// ### really needs no finishing???</span></div> <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordtype">bool</span> finish( <span class="keywordtype">char</span>* &dcursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend )</div> <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  {</div> <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  Q_UNUSED( dcursor ); Q_UNUSED( dend );</div> <div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</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> <span class="keyword">class </span>Base64Encoder : <span class="keyword">public</span> <a class="code" href="classKMime_1_1Encoder.html" title="Stateful encoder class.">Encoder</a></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>  uint mStepNo;</div> <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  uint mWrittenPacketsOnThisLine;</div> <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  uchar mNextbits;</div> <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordtype">bool</span> mInsideFinishing : 1;</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>  <span class="keyword">protected</span>:</div> <div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classKMime_1_1Rfc2047BEncodingCodec.html" title="A class representing the codec for the B encoding as specified in RFC2047B.">Rfc2047BEncodingCodec</a>;</div> <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">friend</span> <span class="keyword">class </span>Rfc2047BEncodingEncoder;</div> <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classKMime_1_1Base64Codec.html" title="A class representing the codec for Base64 as specified in RFC2045.">Base64Codec</a>;</div> <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  Base64Encoder( <span class="keywordtype">bool</span> withCRLF=<span class="keyword">false</span> )</div> <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  : <a class="code" href="classKMime_1_1Encoder.html" title="Stateful encoder class.">Encoder</a>( withCRLF ), mStepNo( 0 ), mWrittenPacketsOnThisLine( 0 ),</div> <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  mNextbits( 0 ), mInsideFinishing( false ) {}</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>  <span class="keywordtype">bool</span> generic_finish( <span class="keywordtype">char</span>* &dcursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend,</div> <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordtype">bool</span> withLFatEnd );</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>  <span class="keyword">public</span>:</div> <div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keyword">virtual</span> ~Base64Encoder() {}</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="keywordtype">bool</span> encode( <span class="keyword">const</span> <span class="keywordtype">char</span>* &scursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> send,</div> <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordtype">char</span>* &dcursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend );</div> <div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div> <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordtype">bool</span> finish( <span class="keywordtype">char</span>* &dcursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend );</div> <div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div> <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keyword">protected</span>:</div> <div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordtype">bool</span> writeBase64( uchar ch, <span class="keywordtype">char</span>* &dcursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend )</div> <div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  { <span class="keywordflow">return</span> write( base64EncodeMap[ ch ], dcursor, dend ); }</div> <div class="line"><a name="l00135"></a><span class="lineno"> 135</span> };</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="keyword">class </span>Rfc2047BEncodingEncoder : <span class="keyword">public</span> Base64Encoder</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>  <span class="keyword">protected</span>:</div> <div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classKMime_1_1Rfc2047BEncodingCodec.html" title="A class representing the codec for the B encoding as specified in RFC2047B.">Rfc2047BEncodingCodec</a>;</div> <div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  Rfc2047BEncodingEncoder( <span class="keywordtype">bool</span> withCRLF=<span class="keyword">false</span> )</div> <div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  : Base64Encoder( withCRLF ) {}</div> <div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div> <div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">public</span>:</div> <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordtype">bool</span> encode( <span class="keyword">const</span> <span class="keywordtype">char</span>* &scursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> send,</div> <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordtype">char</span>* &dcursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend );</div> <div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordtype">bool</span> finish( <span class="keywordtype">char</span>* &dcursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend );</div> <div class="line"><a name="l00148"></a><span class="lineno"> 148</span> };</div> <div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div> <div class="line"><a name="l00150"></a><span class="lineno"><a class="code" href="classKMime_1_1Base64Codec.html#a100a39dc9cd380e87832102a92a2834b"> 150</a></span> <a class="code" href="classKMime_1_1Encoder.html" title="Stateful encoder class.">Encoder</a> *<a class="code" href="classKMime_1_1Base64Codec.html#a100a39dc9cd380e87832102a92a2834b">Base64Codec::makeEncoder</a>( <span class="keywordtype">bool</span> withCRLF )<span class="keyword"> const</span></div> <div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="keyword"></span>{</div> <div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> Base64Encoder( withCRLF );</div> <div class="line"><a name="l00153"></a><span class="lineno"> 153</span> }</div> <div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div> <div class="line"><a name="l00155"></a><span class="lineno"><a class="code" href="classKMime_1_1Base64Codec.html#a042661225bf71af4bc2c909819cf86c3"> 155</a></span> <a class="code" href="classKMime_1_1Decoder.html" title="Stateful CTE decoder class.">Decoder</a> *<a class="code" href="classKMime_1_1Base64Codec.html#a042661225bf71af4bc2c909819cf86c3">Base64Codec::makeDecoder</a>( <span class="keywordtype">bool</span> withCRLF )<span class="keyword"> const</span></div> <div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="keyword"></span>{</div> <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> Base64Decoder( withCRLF );</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> </div> <div class="line"><a name="l00160"></a><span class="lineno"><a class="code" href="classKMime_1_1Rfc2047BEncodingCodec.html#a31819ac3b5618edfddc80481fe0074a9"> 160</a></span> <a class="code" href="classKMime_1_1Encoder.html" title="Stateful encoder class.">Encoder</a> *<a class="code" href="classKMime_1_1Rfc2047BEncodingCodec.html#a31819ac3b5618edfddc80481fe0074a9">Rfc2047BEncodingCodec::makeEncoder</a>( <span class="keywordtype">bool</span> withCRLF )<span class="keyword"> const</span></div> <div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="keyword"></span>{</div> <div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> Rfc2047BEncodingEncoder( withCRLF );</div> <div class="line"><a name="l00163"></a><span class="lineno"> 163</span> }</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="comment">/********************************************************/</span></div> <div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="comment">/********************************************************/</span></div> <div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="comment">/********************************************************/</span></div> <div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div> <div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="keywordtype">bool</span> Base64Decoder::decode( <span class="keyword">const</span> <span class="keywordtype">char</span>* &scursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> send,</div> <div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordtype">char</span>* &dcursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend )</div> <div class="line"><a name="l00171"></a><span class="lineno"> 171</span> {</div> <div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">while</span> ( dcursor != dend && scursor != send ) {</div> <div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  uchar ch = *scursor++;</div> <div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  uchar value;</div> <div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div> <div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="comment">// try converting ch to a 6-bit value:</span></div> <div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordflow">if</span> ( ch < 128 ) {</div> <div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  value = base64DecodeMap[ ch ];</div> <div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  } <span class="keywordflow">else</span> {</div> <div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  value = 64;</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="comment">// ch isn't of the base64 alphabet, check for other significant chars:</span></div> <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keywordflow">if</span> ( value >= 64 ) {</div> <div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">if</span> ( ch == <span class="charliteral">'='</span> ) {</div> <div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="comment">// padding:</span></div> <div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">if</span> ( mStepNo == 0 || mStepNo == 1 ) {</div> <div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">if</span> ( !mSawPadding ) {</div> <div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="comment">// malformed</span></div> <div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  kWarning() << <span class="stringliteral">"Base64Decoder: unexpected padding"</span></div> <div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="stringliteral">"character in input stream"</span>;</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>  mSawPadding = <span class="keyword">true</span>;</div> <div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( mStepNo == 2 ) {</div> <div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="comment">// ok, there should be another one</span></div> <div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( mStepNo == 3 ) {</div> <div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="comment">// ok, end of encoded stream</span></div> <div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  mSawPadding = <span class="keyword">true</span>;</div> <div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">break</span>;</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>  mSawPadding = <span class="keyword">true</span>;</div> <div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  mStepNo = ( mStepNo + 1 ) % 4;</div> <div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordflow">continue</span>;</div> <div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  } <span class="keywordflow">else</span> {</div> <div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="comment">// non-base64 alphabet</span></div> <div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">continue</span>;</div> <div class="line"><a name="l00208"></a><span class="lineno"> 208</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> </div> <div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">if</span> ( mSawPadding ) {</div> <div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  kWarning() << <span class="stringliteral">"Base64Decoder: Embedded padding character"</span></div> <div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="stringliteral">"encountered!"</span>;</div> <div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> <div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  }</div> <div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div> <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="comment">// add the new bits to the output stream and flush full octets:</span></div> <div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordflow">switch</span> ( mStepNo ) {</div> <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordflow">case</span> 0:</div> <div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  mOutbits = value << 2;</div> <div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordflow">case</span> 1:</div> <div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  *dcursor++ = (char)( mOutbits | value >> 4 );</div> <div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  mOutbits = value << 4;</div> <div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordflow">case</span> 2:</div> <div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  *dcursor++ = (char)( mOutbits | value >> 2 );</div> <div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  mOutbits = value << 6;</div> <div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">case</span> 3:</div> <div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  *dcursor++ = (char)( mOutbits | value );</div> <div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  mOutbits = 0;</div> <div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keywordflow">default</span>:</div> <div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  assert( 0 );</div> <div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  }</div> <div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  mStepNo = ( mStepNo + 1 ) % 4;</div> <div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  }</div> <div class="line"><a name="l00239"></a><span class="lineno"> 239</span> </div> <div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="comment">// return false when caller should call us again:</span></div> <div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">return</span> scursor == send;</div> <div class="line"><a name="l00242"></a><span class="lineno"> 242</span> } <span class="comment">// Base64Decoder::decode()</span></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="keywordtype">bool</span> Base64Encoder::encode( <span class="keyword">const</span> <span class="keywordtype">char</span>* &scursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> send,</div> <div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordtype">char</span>* &dcursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend )</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="keyword">const</span> uint maxPacketsPerLine = 76 / 4;</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>  <span class="comment">// detect when the caller doesn't adhere to our rules:</span></div> <div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordflow">if</span> ( mInsideFinishing ) {</div> <div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordflow">return</span> <span class="keyword">true</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> </div> <div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordflow">while</span> ( scursor != send && dcursor != dend ) {</div> <div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="comment">// properly empty the output buffer before starting something new:</span></div> <div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="comment">// ### fixme: we can optimize this away, since the buffer isn't</span></div> <div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="comment">// written to anyway (most of the time)</span></div> <div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keywordflow">if</span> ( mOutputBufferCursor && !flushOutputBuffer( dcursor, dend ) ) {</div> <div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">return</span> scursor == send;</div> <div class="line"><a name="l00260"></a><span class="lineno"> 260</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>  uchar ch = *scursor++;</div> <div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="comment">// mNextbits // (part of) value of next sextet</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="comment">// check for line length;</span></div> <div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="keywordflow">if</span> ( mStepNo == 0 && mWrittenPacketsOnThisLine >= maxPacketsPerLine ) {</div> <div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  writeCRLF( dcursor, dend );</div> <div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  mWrittenPacketsOnThisLine = 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="comment">// depending on mStepNo, extract value and mNextbits from the</span></div> <div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="comment">// octet stream:</span></div> <div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="keywordflow">switch</span> ( mStepNo ) {</div> <div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordflow">case</span> 0:</div> <div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  assert( mNextbits == 0 );</div> <div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  writeBase64( ch >> 2, dcursor, dend ); <span class="comment">// top-most 6 bits -> output</span></div> <div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  mNextbits = ( ch & 0x3 ) << 4; <span class="comment">// 0..1 bits -> 4..5 in mNextbits</span></div> <div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordflow">case</span> 1:</div> <div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  assert( ( mNextbits & ~0x30 ) == 0 );</div> <div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  writeBase64( mNextbits | ch >> 4, dcursor, dend ); <span class="comment">// 4..7 bits -> 0..3 in value</span></div> <div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  mNextbits = ( ch & 0xf ) << 2; <span class="comment">// 0..3 bits -> 2..5 in mNextbits</span></div> <div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordflow">case</span> 2:</div> <div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  assert( ( mNextbits & ~0x3C ) == 0 );</div> <div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  writeBase64( mNextbits | ch >> 6, dcursor, dend ); <span class="comment">// 6..7 bits -> 0..1 in value</span></div> <div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  writeBase64( ch & 0x3F, dcursor, dend ); <span class="comment">// 0..5 bits -> output</span></div> <div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  mNextbits = 0;</div> <div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  mWrittenPacketsOnThisLine++;</div> <div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keywordflow">default</span>:</div> <div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  assert( 0 );</div> <div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  }</div> <div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  mStepNo = ( mStepNo + 1 ) % 3;</div> <div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  }</div> <div class="line"><a name="l00296"></a><span class="lineno"> 296</span> </div> <div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">if</span> ( mOutputBufferCursor ) {</div> <div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  flushOutputBuffer( dcursor, dend );</div> <div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  }</div> <div class="line"><a name="l00300"></a><span class="lineno"> 300</span> </div> <div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordflow">return</span> scursor == send;</div> <div class="line"><a name="l00302"></a><span class="lineno"> 302</span> }</div> <div class="line"><a name="l00303"></a><span class="lineno"> 303</span> </div> <div class="line"><a name="l00304"></a><span class="lineno"> 304</span> <span class="keywordtype">bool</span> Rfc2047BEncodingEncoder::encode( <span class="keyword">const</span> <span class="keywordtype">char</span>* &scursor,</div> <div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> send,</div> <div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="keywordtype">char</span>* &dcursor,</div> <div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend )</div> <div class="line"><a name="l00308"></a><span class="lineno"> 308</span> {</div> <div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="comment">// detect when the caller doesn't adhere to our rules:</span></div> <div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keywordflow">if</span> ( mInsideFinishing ) {</div> <div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> <div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  }</div> <div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div> <div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordflow">while</span> ( scursor != send && dcursor != dend ) {</div> <div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="comment">// properly empty the output buffer before starting something new:</span></div> <div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="comment">// ### fixme: we can optimize this away, since the buffer isn't</span></div> <div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="comment">// written to anyway (most of the time)</span></div> <div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">if</span> ( mOutputBufferCursor && !flushOutputBuffer( dcursor, dend ) ) {</div> <div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keywordflow">return</span> scursor == send;</div> <div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  }</div> <div class="line"><a name="l00321"></a><span class="lineno"> 321</span> </div> <div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  uchar ch = *scursor++;</div> <div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="comment">// mNextbits // (part of) value of next sextet</span></div> <div class="line"><a name="l00324"></a><span class="lineno"> 324</span> </div> <div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="comment">// depending on mStepNo, extract value and mNextbits from the</span></div> <div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="comment">// octet stream:</span></div> <div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordflow">switch</span> ( mStepNo ) {</div> <div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="keywordflow">case</span> 0:</div> <div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  assert( mNextbits == 0 );</div> <div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  writeBase64( ch >> 2, dcursor, dend ); <span class="comment">// top-most 6 bits -> output</span></div> <div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  mNextbits = ( ch & 0x3 ) << 4; <span class="comment">// 0..1 bits -> 4..5 in mNextbits</span></div> <div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="keywordflow">case</span> 1:</div> <div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  assert( ( mNextbits & ~0x30 ) == 0 );</div> <div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  writeBase64( mNextbits | ch >> 4, dcursor, dend ); <span class="comment">// 4..7 bits -> 0..3 in value</span></div> <div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  mNextbits = ( ch & 0xf ) << 2; <span class="comment">// 0..3 bits -> 2..5 in mNextbits</span></div> <div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keywordflow">case</span> 2:</div> <div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  assert( ( mNextbits & ~0x3C ) == 0 );</div> <div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  writeBase64( mNextbits | ch >> 6, dcursor, dend ); <span class="comment">// 6..7 bits -> 0..1 in value</span></div> <div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  writeBase64( ch & 0x3F, dcursor, dend ); <span class="comment">// 0..5 bits -> output</span></div> <div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  mNextbits = 0;</div> <div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keywordflow">default</span>:</div> <div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  assert( 0 );</div> <div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  }</div> <div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  mStepNo = ( mStepNo + 1 ) % 3;</div> <div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  }</div> <div class="line"><a name="l00349"></a><span class="lineno"> 349</span> </div> <div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keywordflow">if</span> ( mOutputBufferCursor ) {</div> <div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  flushOutputBuffer( dcursor, dend );</div> <div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  }</div> <div class="line"><a name="l00353"></a><span class="lineno"> 353</span> </div> <div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="keywordflow">return</span> scursor == send;</div> <div class="line"><a name="l00355"></a><span class="lineno"> 355</span> }</div> <div class="line"><a name="l00356"></a><span class="lineno"> 356</span> </div> <div class="line"><a name="l00357"></a><span class="lineno"> 357</span> <span class="keywordtype">bool</span> Base64Encoder::finish( <span class="keywordtype">char</span>* &dcursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend )</div> <div class="line"><a name="l00358"></a><span class="lineno"> 358</span> {</div> <div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keywordflow">return</span> generic_finish( dcursor, dend, <span class="keyword">true</span> );</div> <div class="line"><a name="l00360"></a><span class="lineno"> 360</span> }</div> <div class="line"><a name="l00361"></a><span class="lineno"> 361</span> </div> <div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="keywordtype">bool</span> Rfc2047BEncodingEncoder::finish( <span class="keywordtype">char</span>* & dcursor,</div> <div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend )</div> <div class="line"><a name="l00364"></a><span class="lineno"> 364</span> {</div> <div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordflow">return</span> generic_finish( dcursor, dend, <span class="keyword">false</span> );</div> <div class="line"><a name="l00366"></a><span class="lineno"> 366</span> }</div> <div class="line"><a name="l00367"></a><span class="lineno"> 367</span> </div> <div class="line"><a name="l00368"></a><span class="lineno"> 368</span> <span class="keywordtype">bool</span> Base64Encoder::generic_finish( <span class="keywordtype">char</span>* &dcursor, <span class="keyword">const</span> <span class="keywordtype">char</span> * <span class="keyword">const</span> dend,</div> <div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordtype">bool</span> withLFatEnd )</div> <div class="line"><a name="l00370"></a><span class="lineno"> 370</span> {</div> <div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="keywordflow">if</span> ( mInsideFinishing ) {</div> <div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keywordflow">return</span> flushOutputBuffer( dcursor, dend );</div> <div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  }</div> <div class="line"><a name="l00374"></a><span class="lineno"> 374</span> </div> <div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="keywordflow">if</span> ( mOutputBufferCursor && !flushOutputBuffer( dcursor, dend ) ) {</div> <div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> <div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  }</div> <div class="line"><a name="l00378"></a><span class="lineno"> 378</span> </div> <div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  mInsideFinishing = <span class="keyword">true</span>;</div> <div class="line"><a name="l00380"></a><span class="lineno"> 380</span> </div> <div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="comment">//</span></div> <div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="comment">// writing out the last mNextbits...</span></div> <div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="comment">//</span></div> <div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keywordflow">switch</span> ( mStepNo ) {</div> <div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="keywordflow">case</span> 1: <span class="comment">// 2 mNextbits waiting to be written. Needs two padding chars:</span></div> <div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordflow">case</span> 2: <span class="comment">// 4 or 6 mNextbits waiting to be written. Completes a block</span></div> <div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  writeBase64( mNextbits, dcursor, dend );</div> <div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  mNextbits = 0;</div> <div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keywordflow">case</span> 0: <span class="comment">// no padding, nothing to be written, except possibly the CRLF</span></div> <div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  assert( mNextbits == 0 );</div> <div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="keywordflow">default</span>:</div> <div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  assert( 0 );</div> <div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  }</div> <div class="line"><a name="l00396"></a><span class="lineno"> 396</span> </div> <div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="comment">//</span></div> <div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="comment">// adding padding...</span></div> <div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="comment">//</span></div> <div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <span class="keywordflow">switch</span> ( mStepNo ) {</div> <div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keywordflow">case</span> 1:</div> <div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  write( <span class="charliteral">'='</span>, dcursor, dend );</div> <div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <span class="comment">// fall through:</span></div> <div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keywordflow">case</span> 2:</div> <div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  write( <span class="charliteral">'='</span>, dcursor, dend );</div> <div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="comment">// fall through:</span></div> <div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordflow">case</span> 0: <span class="comment">// completed an quartet - add CRLF</span></div> <div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">if</span> ( withLFatEnd ) {</div> <div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  writeCRLF( dcursor, dend );</div> <div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  }</div> <div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="keywordflow">return</span> flushOutputBuffer( dcursor, dend );</div> <div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keywordflow">default</span>:</div> <div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  assert( 0 );</div> <div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  }</div> <div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// asserts get compiled out</span></div> <div class="line"><a name="l00416"></a><span class="lineno"> 416</span> }</div> <div class="line"><a name="l00417"></a><span class="lineno"> 417</span> </div> <div class="line"><a name="l00418"></a><span class="lineno"> 418</span> } <span class="comment">// namespace KMime</span></div> </div><!-- fragment --></div><!-- contents --> <div class="copyrights"> This file is part of the 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