This commit is contained in:
bthomee
2025-03-12 22:37:33 +00:00
parent 863da5c9e1
commit 7f0acfcddb
1732 changed files with 298086 additions and 297371 deletions

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@@ -99,214 +99,215 @@ $(function() {
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#define RIPPLE_CONDITIONS_UTILS_H</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include &lt;xrpld/conditions/detail/error.h&gt;</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include &lt;xrpl/basics/Buffer.h&gt;</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include &lt;xrpl/basics/Slice.h&gt;</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include &lt;boost/dynamic_bitset.hpp&gt;</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> </div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/limits.html">limits</a>&gt;</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceripple.html">ripple</a> {</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="keyword">namespace </span>cryptoconditions {</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="comment">// A collection of functions to decode binary blobs</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="comment">// encoded with X.690 Distinguished Encoding Rules.</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="comment">//</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="comment">// This is a very trivial decoder and only implements</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="comment">// the bare minimum needed to support PreimageSha256.</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html"> 39</a></span><span class="keyword">namespace </span>der {</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> </div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span><span class="comment">// The preamble encapsulates the DER identifier and</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span><span class="comment">// length octets:</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"><a class="line" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html"> 43</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">Preamble</a></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span>{</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"><a class="line" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#a7c32128aafb90b0a7f2d6a50df2be040"> 45</a></span> <span class="keyword">explicit</span> <a class="code hl_function" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#a7c32128aafb90b0a7f2d6a50df2be040">Preamble</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"><a class="line" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57"> 46</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a> <a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57">type</a> = 0;</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"><a class="line" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ab6d02b42983eb761e34f28ef6cf73e32"> 47</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ab6d02b42983eb761e34f28ef6cf73e32">tag</a> = 0;</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"><a class="line" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427"> 48</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">length</a> = 0;</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span>};</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span><span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#abe5919b6b49842b90e1dd9de11edceb8"> 52</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#abe5919b6b49842b90e1dd9de11edceb8">isPrimitive</a>(<a class="code hl_struct" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">Preamble</a> <span class="keyword">const</span>&amp; p)</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span>{</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keywordflow">return</span> (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57">type</a> &amp; 0x20) == 0;</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span>}</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> </div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#a5598a5b0e63f482cf09ed900405bb14d"> 58</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#a5598a5b0e63f482cf09ed900405bb14d">isConstructed</a>(<a class="code hl_struct" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">Preamble</a> <span class="keyword">const</span>&amp; p)</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span>{</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordflow">return</span> !<a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#abe5919b6b49842b90e1dd9de11edceb8">isPrimitive</a>(p);</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span>}</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> </div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span><span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#ae260830b211b6c13c400242229d09ac3"> 64</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#ae260830b211b6c13c400242229d09ac3">isUniversal</a>(<a class="code hl_struct" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">Preamble</a> <span class="keyword">const</span>&amp; p)</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span>{</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keywordflow">return</span> (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57">type</a> &amp; 0xC0) == 0;</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span>}</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> </div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span><span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#acc7e5835e3c63c351aeafc8b52644be1"> 70</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#acc7e5835e3c63c351aeafc8b52644be1">isApplication</a>(<a class="code hl_struct" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">Preamble</a> <span class="keyword">const</span>&amp; p)</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span>{</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keywordflow">return</span> (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57">type</a> &amp; 0xC0) == 0x40;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span>}</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span><span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#ab0ecc3cd624cfe48c1382b719c18e539"> 76</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#ab0ecc3cd624cfe48c1382b719c18e539">isContextSpecific</a>(<a class="code hl_struct" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">Preamble</a> <span class="keyword">const</span>&amp; p)</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span>{</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="keywordflow">return</span> (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57">type</a> &amp; 0xC0) == 0x80;</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span>}</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> </div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span><span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#a7b59d9b70291a517a8a7220ecdae1e1d"> 82</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#a7b59d9b70291a517a8a7220ecdae1e1d">isPrivate</a>(<a class="code hl_struct" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">Preamble</a> <span class="keyword">const</span>&amp; p)</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span>{</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="keywordflow">return</span> (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57">type</a> &amp; 0xC0) == 0xC0;</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span>}</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> </div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span><span class="keyword">inline</span> Preamble</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#af645e6e91b0b5d439228c14a7c4b360f"> 88</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#af645e6e91b0b5d439228c14a7c4b360f">parsePreamble</a>(<a class="code hl_class" href="classripple_1_1Slice.html">Slice</a>&amp; s, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/error/error_code.html">std::error_code</a>&amp; ec)</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span>{</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <a class="code hl_struct" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">Preamble</a> p;</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> </div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keywordflow">if</span> (s.<a class="code hl_function" href="classripple_1_1Slice.html#aa6faa586508e0f849d4591d807353825">size</a>() &lt; 2)</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> {</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a4635db4140842fb49593e70f83fc0d59">error::short_preamble</a>;</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keywordflow">return</span> p;</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> }</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57">type</a> = s[0] &amp; 0xE0;</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ab6d02b42983eb761e34f28ef6cf73e32">tag</a> = s[0] &amp; 0x1F;</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> </div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> s += 1;</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> </div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keywordflow">if</span> (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ab6d02b42983eb761e34f28ef6cf73e32">tag</a> == 0x1F)</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> { <span class="comment">// Long tag form, which we do not support:</span></div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23ab7fcc29f8f7ba2bb28f56437232e011e">error::long_tag</a>;</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keywordflow">return</span> p;</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> }</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> </div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">length</a> = s[0];</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> s += 1;</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> </div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordflow">if</span> (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">length</a> &amp; 0x80)</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> { <span class="comment">// Long form length:</span></div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <span class="keyword">const</span> cnt = p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">length</a> &amp; 0x7F;</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> </div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="keywordflow">if</span> (cnt == 0)</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> {</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a23ffdfca0c2059b36da38cb35daae34e">error::malformed_encoding</a>;</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keywordflow">return</span> p;</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> }</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> </div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="keywordflow">if</span> (cnt &gt; <span class="keyword">sizeof</span>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a>))</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> {</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23aeec30238a1c1154b9beb6c425f6640e8">error::large_size</a>;</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keywordflow">return</span> p;</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> }</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> </div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <span class="keywordflow">if</span> (cnt &gt; s.<a class="code hl_function" href="classripple_1_1Slice.html#aa6faa586508e0f849d4591d807353825">size</a>())</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> {</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a4635db4140842fb49593e70f83fc0d59">error::short_preamble</a>;</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">return</span> p;</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> }</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> </div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">length</a> = 0;</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keywordflow">for</span> (<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> i = 0; i != cnt; ++i)</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">length</a> = (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">length</a> &lt;&lt; 8) + s[i];</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> </div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> s += cnt;</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> </div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keywordflow">if</span> (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">length</a> == 0)</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> {</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a23ffdfca0c2059b36da38cb35daae34e">error::malformed_encoding</a>;</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="keywordflow">return</span> p;</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> }</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> }</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> </div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keywordflow">return</span> p;</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span>}</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> </div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span><span class="keyword">inline</span> <a class="code hl_class" href="classripple_1_1Buffer.html">Buffer</a></div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#ab34f4f12a87784ad3d1ef22f18a78bf7"> 152</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#ab34f4f12a87784ad3d1ef22f18a78bf7">parseOctetString</a>(<a class="code hl_class" href="classripple_1_1Slice.html">Slice</a>&amp; s, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> count, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/error/error_code.html">std::error_code</a>&amp; ec)</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span>{</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> <span class="keywordflow">if</span> (count &gt; s.<a class="code hl_function" href="classripple_1_1Slice.html#aa6faa586508e0f849d4591d807353825">size</a>())</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> {</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23acfdd03f4b6e2ca9f7e3d892ad3274c5c">error::buffer_underfull</a>;</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> <span class="keywordflow">return</span> {};</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> }</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> </div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keywordflow">if</span> (count &gt; 65535)</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> {</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23aeec30238a1c1154b9beb6c425f6640e8">error::large_size</a>;</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="keywordflow">return</span> {};</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> }</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> </div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <a class="code hl_class" href="classripple_1_1Buffer.html">Buffer</a> b(s.<a class="code hl_function" href="classripple_1_1Slice.html#a86b04f444930887410acd22b367efc8c">data</a>(), count);</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> s += count;</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <span class="keywordflow">return</span> b;</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span>}</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> </div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span><span class="keyword">template</span> &lt;<span class="keyword">class</span> Integer&gt;</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span>Integer</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#ab450cdc614f8bfcec12b01459bd981be"> 173</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#ab450cdc614f8bfcec12b01459bd981be">parseInteger</a>(<a class="code hl_class" href="classripple_1_1Slice.html">Slice</a>&amp; s, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> count, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/error/error_code.html">std::error_code</a>&amp; ec)</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span>{</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> Integer v{0};</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> </div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="keywordflow">if</span> (s.<a class="code hl_function" href="classripple_1_1Slice.html#a38d951bc2f27aaf89c3fdb5914c7e169">empty</a>())</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> {</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> <span class="comment">// can never have zero sized integers</span></div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a23ffdfca0c2059b36da38cb35daae34e">error::malformed_encoding</a>;</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> <span class="keywordflow">return</span> v;</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> }</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> </div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="keywordflow">if</span> (count &gt; s.<a class="code hl_function" href="classripple_1_1Slice.html#aa6faa586508e0f849d4591d807353825">size</a>())</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> {</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23acfdd03f4b6e2ca9f7e3d892ad3274c5c">error::buffer_underfull</a>;</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> <span class="keywordflow">return</span> v;</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> }</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> </div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> isSigned = <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/numeric_limits.html">std::numeric_limits&lt;Integer&gt;::is_signed</a>;</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <span class="comment">// unsigned types may have a leading zero octet</span></div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> maxLength = isSigned ? <span class="keyword">sizeof</span>(Integer) : <span class="keyword">sizeof</span>(Integer) + 1;</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <span class="keywordflow">if</span> (count &gt; maxLength)</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> {</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23aeec30238a1c1154b9beb6c425f6640e8">error::large_size</a>;</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <span class="keywordflow">return</span> v;</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> }</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> </div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> <span class="keywordflow">if</span> (!isSigned &amp;&amp; (s[0] &amp; (1 &lt;&lt; 7)))</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> {</div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> <span class="comment">// trying to decode a negative number into a positive value</span></div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a23ffdfca0c2059b36da38cb35daae34e">error::malformed_encoding</a>;</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> <span class="keywordflow">return</span> v;</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> }</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> </div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <span class="keywordflow">if</span> (!isSigned &amp;&amp; count == <span class="keyword">sizeof</span>(Integer) + 1 &amp;&amp; s[0])</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> {</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> <span class="comment">// since integers are coded as two&#39;s complement, the first byte may</span></div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> <span class="comment">// be zero for unsigned reps</span></div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a23ffdfca0c2059b36da38cb35daae34e">error::malformed_encoding</a>;</div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> <span class="keywordflow">return</span> v;</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> }</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> </div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> v = 0;</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; count; ++i)</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> v = (v &lt;&lt; 8) | (s[i] &amp; 0xff);</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> </div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> <span class="keywordflow">if</span> (isSigned &amp;&amp; (s[0] &amp; (1 &lt;&lt; 7)))</div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> {</div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = count; i &lt; <span class="keyword">sizeof</span>(Integer); ++i)</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> v |= (Integer(0xff) &lt;&lt; (8 * i));</div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> }</div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> s += count;</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> <span class="keywordflow">return</span> v;</div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span>}</div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> </div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span>} <span class="comment">// namespace der</span></div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span>} <span class="comment">// namespace cryptoconditions</span></div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span>} <span class="comment">// namespace ripple</span></div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> </div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include &lt;xrpl/basics/Buffer.h&gt;</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include &lt;xrpl/basics/Slice.h&gt;</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include &lt;boost/dynamic_bitset.hpp&gt;</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/limits.html">limits</a>&gt;</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceripple.html">ripple</a> {</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="keyword">namespace </span>cryptoconditions {</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="comment">// A collection of functions to decode binary blobs</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="comment">// encoded with X.690 Distinguished Encoding Rules.</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="comment">//</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="comment">// This is a very trivial decoder and only implements</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="comment">// the bare minimum needed to support PreimageSha256.</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html"> 40</a></span><span class="keyword">namespace </span>der {</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> </div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span><span class="comment">// The preamble encapsulates the DER identifier and</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span><span class="comment">// length octets:</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"><a class="line" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html"> 44</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">Preamble</a></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span>{</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"><a class="line" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#a7c32128aafb90b0a7f2d6a50df2be040"> 46</a></span> <span class="keyword">explicit</span> <a class="code hl_function" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#a7c32128aafb90b0a7f2d6a50df2be040">Preamble</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"><a class="line" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57"> 47</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a> <a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57">type</a> = 0;</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"><a class="line" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ab6d02b42983eb761e34f28ef6cf73e32"> 48</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ab6d02b42983eb761e34f28ef6cf73e32">tag</a> = 0;</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"><a class="line" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427"> 49</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">length</a> = 0;</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span>};</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> </div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span><span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#abe5919b6b49842b90e1dd9de11edceb8"> 53</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#abe5919b6b49842b90e1dd9de11edceb8">isPrimitive</a>(<a class="code hl_struct" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">Preamble</a> <span class="keyword">const</span>&amp; p)</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span>{</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keywordflow">return</span> (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57">type</a> &amp; 0x20) == 0;</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span>}</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#a5598a5b0e63f482cf09ed900405bb14d"> 59</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#a5598a5b0e63f482cf09ed900405bb14d">isConstructed</a>(<a class="code hl_struct" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">Preamble</a> <span class="keyword">const</span>&amp; p)</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span>{</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="keywordflow">return</span> !<a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#abe5919b6b49842b90e1dd9de11edceb8">isPrimitive</a>(p);</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span>}</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> </div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span><span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#ae260830b211b6c13c400242229d09ac3"> 65</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#ae260830b211b6c13c400242229d09ac3">isUniversal</a>(<a class="code hl_struct" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">Preamble</a> <span class="keyword">const</span>&amp; p)</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span>{</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="keywordflow">return</span> (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57">type</a> &amp; 0xC0) == 0;</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span>}</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> </div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span><span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#acc7e5835e3c63c351aeafc8b52644be1"> 71</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#acc7e5835e3c63c351aeafc8b52644be1">isApplication</a>(<a class="code hl_struct" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">Preamble</a> <span class="keyword">const</span>&amp; p)</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span>{</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keywordflow">return</span> (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57">type</a> &amp; 0xC0) == 0x40;</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span>}</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> </div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span><span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#ab0ecc3cd624cfe48c1382b719c18e539"> 77</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#ab0ecc3cd624cfe48c1382b719c18e539">isContextSpecific</a>(<a class="code hl_struct" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">Preamble</a> <span class="keyword">const</span>&amp; p)</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span>{</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keywordflow">return</span> (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57">type</a> &amp; 0xC0) == 0x80;</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span>}</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span><span class="keyword">inline</span> <span class="keywordtype">bool</span></div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#a7b59d9b70291a517a8a7220ecdae1e1d"> 83</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#a7b59d9b70291a517a8a7220ecdae1e1d">isPrivate</a>(<a class="code hl_struct" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">Preamble</a> <span class="keyword">const</span>&amp; p)</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span>{</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="keywordflow">return</span> (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57">type</a> &amp; 0xC0) == 0xC0;</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span>}</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> </div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span><span class="keyword">inline</span> Preamble</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#af645e6e91b0b5d439228c14a7c4b360f"> 89</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#af645e6e91b0b5d439228c14a7c4b360f">parsePreamble</a>(<a class="code hl_class" href="classripple_1_1Slice.html">Slice</a>&amp; s, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/error/error_code.html">std::error_code</a>&amp; ec)</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span>{</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <a class="code hl_struct" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">Preamble</a> p;</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> </div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="keywordflow">if</span> (s.<a class="code hl_function" href="classripple_1_1Slice.html#aa6faa586508e0f849d4591d807353825">size</a>() &lt; 2)</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> {</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a4635db4140842fb49593e70f83fc0d59">error::short_preamble</a>;</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="keywordflow">return</span> p;</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> }</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> </div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57">type</a> = s[0] &amp; 0xE0;</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ab6d02b42983eb761e34f28ef6cf73e32">tag</a> = s[0] &amp; 0x1F;</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> </div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> s += 1;</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> </div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keywordflow">if</span> (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ab6d02b42983eb761e34f28ef6cf73e32">tag</a> == 0x1F)</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> { <span class="comment">// Long tag form, which we do not support:</span></div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23ab7fcc29f8f7ba2bb28f56437232e011e">error::long_tag</a>;</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordflow">return</span> p;</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> }</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> </div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">length</a> = s[0];</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> s += 1;</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> </div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="keywordflow">if</span> (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">length</a> &amp; 0x80)</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> { <span class="comment">// Long form length:</span></div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <span class="keyword">const</span> cnt = p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">length</a> &amp; 0x7F;</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> </div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="keywordflow">if</span> (cnt == 0)</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> {</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a23ffdfca0c2059b36da38cb35daae34e">error::malformed_encoding</a>;</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="keywordflow">return</span> p;</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> }</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> </div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordflow">if</span> (cnt &gt; <span class="keyword">sizeof</span>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a>))</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> {</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23aeec30238a1c1154b9beb6c425f6640e8">error::large_size</a>;</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keywordflow">return</span> p;</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> }</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> </div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="keywordflow">if</span> (cnt &gt; s.<a class="code hl_function" href="classripple_1_1Slice.html#aa6faa586508e0f849d4591d807353825">size</a>())</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> {</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a4635db4140842fb49593e70f83fc0d59">error::short_preamble</a>;</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordflow">return</span> p;</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> }</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> </div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">length</a> = 0;</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> </div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keywordflow">for</span> (<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> i = 0; i != cnt; ++i)</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">length</a> = (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">length</a> &lt;&lt; 8) + s[i];</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> </div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> s += cnt;</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> </div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="keywordflow">if</span> (p.<a class="code hl_variable" href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">length</a> == 0)</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> {</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a23ffdfca0c2059b36da38cb35daae34e">error::malformed_encoding</a>;</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> <span class="keywordflow">return</span> p;</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> }</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> }</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> </div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordflow">return</span> p;</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span>}</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> </div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span><span class="keyword">inline</span> <a class="code hl_class" href="classripple_1_1Buffer.html">Buffer</a></div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#ab34f4f12a87784ad3d1ef22f18a78bf7"> 153</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#ab34f4f12a87784ad3d1ef22f18a78bf7">parseOctetString</a>(<a class="code hl_class" href="classripple_1_1Slice.html">Slice</a>&amp; s, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a> count, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/error/error_code.html">std::error_code</a>&amp; ec)</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span>{</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keywordflow">if</span> (count &gt; s.<a class="code hl_function" href="classripple_1_1Slice.html#aa6faa586508e0f849d4591d807353825">size</a>())</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> {</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23acfdd03f4b6e2ca9f7e3d892ad3274c5c">error::buffer_underfull</a>;</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <span class="keywordflow">return</span> {};</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> }</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> </div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <span class="keywordflow">if</span> (count &gt; 65535)</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> {</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23aeec30238a1c1154b9beb6c425f6640e8">error::large_size</a>;</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="keywordflow">return</span> {};</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> }</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> </div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> <a class="code hl_class" href="classripple_1_1Buffer.html">Buffer</a> b(s.<a class="code hl_function" href="classripple_1_1Slice.html#a86b04f444930887410acd22b367efc8c">data</a>(), count);</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> s += count;</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keywordflow">return</span> b;</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span>}</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> </div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span><span class="keyword">template</span> &lt;<span class="keyword">class</span> Integer&gt;</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span>Integer</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"><a class="line" href="namespaceripple_1_1cryptoconditions_1_1der.html#ab450cdc614f8bfcec12b01459bd981be"> 174</a></span><a class="code hl_function" href="namespaceripple_1_1cryptoconditions_1_1der.html#ab450cdc614f8bfcec12b01459bd981be">parseInteger</a>(<a class="code hl_class" href="classripple_1_1Slice.html">Slice</a>&amp; s, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> count, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/error/error_code.html">std::error_code</a>&amp; ec)</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span>{</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> Integer v{0};</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> </div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="keywordflow">if</span> (s.<a class="code hl_function" href="classripple_1_1Slice.html#a38d951bc2f27aaf89c3fdb5914c7e169">empty</a>())</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> {</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="comment">// can never have zero sized integers</span></div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a23ffdfca0c2059b36da38cb35daae34e">error::malformed_encoding</a>;</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> <span class="keywordflow">return</span> v;</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> }</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> </div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <span class="keywordflow">if</span> (count &gt; s.<a class="code hl_function" href="classripple_1_1Slice.html#aa6faa586508e0f849d4591d807353825">size</a>())</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> {</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23acfdd03f4b6e2ca9f7e3d892ad3274c5c">error::buffer_underfull</a>;</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <span class="keywordflow">return</span> v;</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> }</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> </div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> isSigned = <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/numeric_limits.html">std::numeric_limits&lt;Integer&gt;::is_signed</a>;</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> <span class="comment">// unsigned types may have a leading zero octet</span></div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> maxLength = isSigned ? <span class="keyword">sizeof</span>(Integer) : <span class="keyword">sizeof</span>(Integer) + 1;</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keywordflow">if</span> (count &gt; maxLength)</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> {</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23aeec30238a1c1154b9beb6c425f6640e8">error::large_size</a>;</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <span class="keywordflow">return</span> v;</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> }</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> </div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> <span class="keywordflow">if</span> (!isSigned &amp;&amp; (s[0] &amp; (1 &lt;&lt; 7)))</div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> {</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> <span class="comment">// trying to decode a negative number into a positive value</span></div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a23ffdfca0c2059b36da38cb35daae34e">error::malformed_encoding</a>;</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <span class="keywordflow">return</span> v;</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> }</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> </div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <span class="keywordflow">if</span> (!isSigned &amp;&amp; count == <span class="keyword">sizeof</span>(Integer) + 1 &amp;&amp; s[0])</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> {</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> <span class="comment">// since integers are coded as two&#39;s complement, the first byte may</span></div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> <span class="comment">// be zero for unsigned reps</span></div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> ec = <a class="code hl_enumvalue" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a23ffdfca0c2059b36da38cb35daae34e">error::malformed_encoding</a>;</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> <span class="keywordflow">return</span> v;</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> }</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> </div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> v = 0;</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; count; ++i)</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> v = (v &lt;&lt; 8) | (s[i] &amp; 0xff);</div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> </div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> <span class="keywordflow">if</span> (isSigned &amp;&amp; (s[0] &amp; (1 &lt;&lt; 7)))</div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> {</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = count; i &lt; <span class="keyword">sizeof</span>(Integer); ++i)</div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> v |= (Integer(0xff) &lt;&lt; (8 * i));</div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> }</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> s += count;</div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> <span class="keywordflow">return</span> v;</div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span>}</div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> </div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span>} <span class="comment">// namespace der</span></div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span>} <span class="comment">// namespace cryptoconditions</span></div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span>} <span class="comment">// namespace ripple</span></div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> </div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span><span class="preprocessor">#endif</span></div>
<div class="ttc" id="aclassripple_1_1Buffer_html"><div class="ttname"><a href="classripple_1_1Buffer.html">ripple::Buffer</a></div><div class="ttdoc">Like std::vector&lt;char&gt; but better.</div><div class="ttdef"><b>Definition:</b> <a href="Buffer_8h_source.html#l00034">Buffer.h:35</a></div></div>
<div class="ttc" id="aclassripple_1_1Slice_html"><div class="ttname"><a href="classripple_1_1Slice.html">ripple::Slice</a></div><div class="ttdoc">An immutable linear range of bytes.</div><div class="ttdef"><b>Definition:</b> <a href="Slice_8h_source.html#l00045">Slice.h:46</a></div></div>
<div class="ttc" id="aclassripple_1_1Slice_html_a38d951bc2f27aaf89c3fdb5914c7e169"><div class="ttname"><a href="classripple_1_1Slice.html#a38d951bc2f27aaf89c3fdb5914c7e169">ripple::Slice::empty</a></div><div class="ttdeci">bool empty() const noexcept</div><div class="ttdoc">Return true if the byte range is empty.</div><div class="ttdef"><b>Definition:</b> <a href="Slice_8h_source.html#l00070">Slice.h:70</a></div></div>
@@ -315,15 +316,15 @@ $(function() {
<div class="ttc" id="aerror_code_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/error/error_code.html">std::error_code</a></div></div>
<div class="ttc" id="ainteger_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint8_t</a></div></div>
<div class="ttc" id="alimits_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/limits.html">limits</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_a5598a5b0e63f482cf09ed900405bb14d"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#a5598a5b0e63f482cf09ed900405bb14d">ripple::cryptoconditions::der::isConstructed</a></div><div class="ttdeci">bool isConstructed(Preamble const &amp;p)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00058">utils.h:58</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_a7b59d9b70291a517a8a7220ecdae1e1d"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#a7b59d9b70291a517a8a7220ecdae1e1d">ripple::cryptoconditions::der::isPrivate</a></div><div class="ttdeci">bool isPrivate(Preamble const &amp;p)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00082">utils.h:82</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_ab0ecc3cd624cfe48c1382b719c18e539"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#ab0ecc3cd624cfe48c1382b719c18e539">ripple::cryptoconditions::der::isContextSpecific</a></div><div class="ttdeci">bool isContextSpecific(Preamble const &amp;p)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00076">utils.h:76</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_ab34f4f12a87784ad3d1ef22f18a78bf7"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#ab34f4f12a87784ad3d1ef22f18a78bf7">ripple::cryptoconditions::der::parseOctetString</a></div><div class="ttdeci">Buffer parseOctetString(Slice &amp;s, std::uint32_t count, std::error_code &amp;ec)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00152">utils.h:152</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_ab450cdc614f8bfcec12b01459bd981be"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#ab450cdc614f8bfcec12b01459bd981be">ripple::cryptoconditions::der::parseInteger</a></div><div class="ttdeci">Integer parseInteger(Slice &amp;s, std::size_t count, std::error_code &amp;ec)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00173">utils.h:173</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_abe5919b6b49842b90e1dd9de11edceb8"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#abe5919b6b49842b90e1dd9de11edceb8">ripple::cryptoconditions::der::isPrimitive</a></div><div class="ttdeci">bool isPrimitive(Preamble const &amp;p)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00052">utils.h:52</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_acc7e5835e3c63c351aeafc8b52644be1"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#acc7e5835e3c63c351aeafc8b52644be1">ripple::cryptoconditions::der::isApplication</a></div><div class="ttdeci">bool isApplication(Preamble const &amp;p)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00070">utils.h:70</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_ae260830b211b6c13c400242229d09ac3"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#ae260830b211b6c13c400242229d09ac3">ripple::cryptoconditions::der::isUniversal</a></div><div class="ttdeci">bool isUniversal(Preamble const &amp;p)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00064">utils.h:64</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_af645e6e91b0b5d439228c14a7c4b360f"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#af645e6e91b0b5d439228c14a7c4b360f">ripple::cryptoconditions::der::parsePreamble</a></div><div class="ttdeci">Preamble parsePreamble(Slice &amp;s, std::error_code &amp;ec)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00088">utils.h:88</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_a5598a5b0e63f482cf09ed900405bb14d"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#a5598a5b0e63f482cf09ed900405bb14d">ripple::cryptoconditions::der::isConstructed</a></div><div class="ttdeci">bool isConstructed(Preamble const &amp;p)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00059">utils.h:59</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_a7b59d9b70291a517a8a7220ecdae1e1d"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#a7b59d9b70291a517a8a7220ecdae1e1d">ripple::cryptoconditions::der::isPrivate</a></div><div class="ttdeci">bool isPrivate(Preamble const &amp;p)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00083">utils.h:83</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_ab0ecc3cd624cfe48c1382b719c18e539"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#ab0ecc3cd624cfe48c1382b719c18e539">ripple::cryptoconditions::der::isContextSpecific</a></div><div class="ttdeci">bool isContextSpecific(Preamble const &amp;p)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00077">utils.h:77</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_ab34f4f12a87784ad3d1ef22f18a78bf7"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#ab34f4f12a87784ad3d1ef22f18a78bf7">ripple::cryptoconditions::der::parseOctetString</a></div><div class="ttdeci">Buffer parseOctetString(Slice &amp;s, std::uint32_t count, std::error_code &amp;ec)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00153">utils.h:153</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_ab450cdc614f8bfcec12b01459bd981be"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#ab450cdc614f8bfcec12b01459bd981be">ripple::cryptoconditions::der::parseInteger</a></div><div class="ttdeci">Integer parseInteger(Slice &amp;s, std::size_t count, std::error_code &amp;ec)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00174">utils.h:174</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_abe5919b6b49842b90e1dd9de11edceb8"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#abe5919b6b49842b90e1dd9de11edceb8">ripple::cryptoconditions::der::isPrimitive</a></div><div class="ttdeci">bool isPrimitive(Preamble const &amp;p)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00053">utils.h:53</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_acc7e5835e3c63c351aeafc8b52644be1"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#acc7e5835e3c63c351aeafc8b52644be1">ripple::cryptoconditions::der::isApplication</a></div><div class="ttdeci">bool isApplication(Preamble const &amp;p)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00071">utils.h:71</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_ae260830b211b6c13c400242229d09ac3"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#ae260830b211b6c13c400242229d09ac3">ripple::cryptoconditions::der::isUniversal</a></div><div class="ttdeci">bool isUniversal(Preamble const &amp;p)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00065">utils.h:65</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_1_1der_html_af645e6e91b0b5d439228c14a7c4b360f"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions_1_1der.html#af645e6e91b0b5d439228c14a7c4b360f">ripple::cryptoconditions::der::parsePreamble</a></div><div class="ttdeci">Preamble parsePreamble(Slice &amp;s, std::error_code &amp;ec)</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00089">utils.h:89</a></div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_html_ae0bee5541ce10d52809660ad2d100a23a23ffdfca0c2059b36da38cb35daae34e"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a23ffdfca0c2059b36da38cb35daae34e">ripple::cryptoconditions::error::malformed_encoding</a></div><div class="ttdeci">@ malformed_encoding</div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_html_ae0bee5541ce10d52809660ad2d100a23a4635db4140842fb49593e70f83fc0d59"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a4635db4140842fb49593e70f83fc0d59">ripple::cryptoconditions::error::short_preamble</a></div><div class="ttdeci">@ short_preamble</div></div>
<div class="ttc" id="anamespaceripple_1_1cryptoconditions_html_ae0bee5541ce10d52809660ad2d100a23ab7fcc29f8f7ba2bb28f56437232e011e"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23ab7fcc29f8f7ba2bb28f56437232e011e">ripple::cryptoconditions::error::long_tag</a></div><div class="ttdeci">@ long_tag</div></div>
@@ -332,11 +333,11 @@ $(function() {
<div class="ttc" id="anamespaceripple_html"><div class="ttname"><a href="namespaceripple.html">ripple</a></div><div class="ttdoc">Use hash_* containers for keys that do not need a cryptographically secure hashing algorithm.</div><div class="ttdef"><b>Definition:</b> <a href="algorithm_8h_source.html#l00026">algorithm.h:26</a></div></div>
<div class="ttc" id="anumeric_limits_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/numeric_limits.html">std::numeric_limits</a></div></div>
<div class="ttc" id="asize_t_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a></div></div>
<div class="ttc" id="astructripple_1_1cryptoconditions_1_1der_1_1Preamble_html"><div class="ttname"><a href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">ripple::cryptoconditions::der::Preamble</a></div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00043">utils.h:44</a></div></div>
<div class="ttc" id="astructripple_1_1cryptoconditions_1_1der_1_1Preamble_html"><div class="ttname"><a href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html">ripple::cryptoconditions::der::Preamble</a></div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00044">utils.h:45</a></div></div>
<div class="ttc" id="astructripple_1_1cryptoconditions_1_1der_1_1Preamble_html_a7c32128aafb90b0a7f2d6a50df2be040"><div class="ttname"><a href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#a7c32128aafb90b0a7f2d6a50df2be040">ripple::cryptoconditions::der::Preamble::Preamble</a></div><div class="ttdeci">Preamble()=default</div></div>
<div class="ttc" id="astructripple_1_1cryptoconditions_1_1der_1_1Preamble_html_ab6d02b42983eb761e34f28ef6cf73e32"><div class="ttname"><a href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ab6d02b42983eb761e34f28ef6cf73e32">ripple::cryptoconditions::der::Preamble::tag</a></div><div class="ttdeci">std::size_t tag</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00047">utils.h:47</a></div></div>
<div class="ttc" id="astructripple_1_1cryptoconditions_1_1der_1_1Preamble_html_acc503771e4b5ddae9d630ef8520d7427"><div class="ttname"><a href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">ripple::cryptoconditions::der::Preamble::length</a></div><div class="ttdeci">std::size_t length</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00048">utils.h:48</a></div></div>
<div class="ttc" id="astructripple_1_1cryptoconditions_1_1der_1_1Preamble_html_ae4b7f5bda52833109c8c8f9d4b65cf57"><div class="ttname"><a href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57">ripple::cryptoconditions::der::Preamble::type</a></div><div class="ttdeci">std::uint8_t type</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00046">utils.h:46</a></div></div>
<div class="ttc" id="astructripple_1_1cryptoconditions_1_1der_1_1Preamble_html_ab6d02b42983eb761e34f28ef6cf73e32"><div class="ttname"><a href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ab6d02b42983eb761e34f28ef6cf73e32">ripple::cryptoconditions::der::Preamble::tag</a></div><div class="ttdeci">std::size_t tag</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00048">utils.h:48</a></div></div>
<div class="ttc" id="astructripple_1_1cryptoconditions_1_1der_1_1Preamble_html_acc503771e4b5ddae9d630ef8520d7427"><div class="ttname"><a href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#acc503771e4b5ddae9d630ef8520d7427">ripple::cryptoconditions::der::Preamble::length</a></div><div class="ttdeci">std::size_t length</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00049">utils.h:49</a></div></div>
<div class="ttc" id="astructripple_1_1cryptoconditions_1_1der_1_1Preamble_html_ae4b7f5bda52833109c8c8f9d4b65cf57"><div class="ttname"><a href="structripple_1_1cryptoconditions_1_1der_1_1Preamble.html#ae4b7f5bda52833109c8c8f9d4b65cf57">ripple::cryptoconditions::der::Preamble::type</a></div><div class="ttdeci">std::uint8_t type</div><div class="ttdef"><b>Definition:</b> <a href="utils_8h_source.html#l00047">utils.h:47</a></div></div>
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