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<div id="projectname">libaaruformat<span id="projectnumber">&#160;1.0</span>
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<div id="projectbrief">Aaru Data Preservation Suite - Format Library</div>
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<a href="checksum_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * This file is part of the Aaru Data Preservation Suite.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * Copyright (c) 2019-2025 Natalia Portillo.</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> *</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * This library is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * it under the terms of the GNU Lesser General Public License as</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * published by the Free Software Foundation; either version 2.1 of the</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> * License, or (at your option) any later version.</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> *</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * This library is distributed in the hope that it will be useful, but</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * Lesser General Public License for more details.</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> *</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> * You should have received a copy of the GNU Lesser General Public</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * License along with this library; if not, see &lt;http://www.gnu.org/licenses/&gt;.</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> */</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include &lt;inttypes.h&gt;</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include &lt;stdint.h&gt;</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include &lt;stdio.h&gt;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include &lt;stdlib.h&gt;</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include &lt;string.h&gt;</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 &quot;<a class="code" href="context_8h.html">aaruformat/context.h</a>&quot;</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include &quot;<a class="code" href="enums_8h.html">aaruformat/enums.h</a>&quot;</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include &quot;<a class="code" href="checksum_8h.html">aaruformat/structs/checksum.h</a>&quot;</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include &quot;<a class="code" href="index_8h.html">aaruformat/structs/index.h</a>&quot;</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include &quot;<a class="code" href="log_8h.html">log.h</a>&quot;</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span></div>
<div class="foldopen" id="foldopen00039" data-start="{" data-end="}">
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"><a class="line" href="internal_8h.html#a565eace88f86c500249be1f2a89a1c60"> 39</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="checksum_8c.html#a565eace88f86c500249be1f2a89a1c60">process_checksum_block</a>(<a class="code hl_struct" href="structaaruformat__context.html">aaruformat_context</a> *ctx, <span class="keyword">const</span> <a class="code hl_struct" href="structIndexEntry.html">IndexEntry</a> *entry)</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> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Entering process_checksum_block(%p, %p)&quot;</span>, ctx, entry);</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> </div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="keywordtype">int</span> seek_result = 0;</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keywordtype">size_t</span> read_bytes = 0;</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <a class="code hl_struct" href="structChecksumHeader.html">ChecksumHeader</a> checksum_header;</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <a class="code hl_struct" href="structChecksumEntry.html">ChecksumEntry</a> <span class="keyword">const</span> *checksum_entry = NULL;</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> uint8_t *data = NULL;</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keywordtype">int</span> j = 0;</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keywordtype">size_t</span> payload_pos = 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> <span class="comment">// Check if the context and image stream are valid</span></div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordflow">if</span>(ctx == NULL || ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a> == NULL)</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> <a class="code hl_define" href="log_8h.html#a053d6037d543b84ce59308ce71d15cd1">FATAL</a>(<span class="stringliteral">&quot;Invalid context or image stream.&quot;</span>);</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keywordflow">return</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> </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="comment">// Seek to block</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> seek_result = fseek(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, entry-&gt;<a class="code hl_variable" href="structIndexEntry.html#a854951a64192d7e4cdcfa6dd6fd2b3ea">offset</a>, SEEK_SET);</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordflow">if</span>(seek_result &lt; 0 || ftell(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) != entry-&gt;<a class="code hl_variable" href="structIndexEntry.html#a854951a64192d7e4cdcfa6dd6fd2b3ea">offset</a>)</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> <a class="code hl_define" href="log_8h.html#a053d6037d543b84ce59308ce71d15cd1">FATAL</a>(<span class="stringliteral">&quot;Could not seek to %&quot;</span> PRIu64 <span class="stringliteral">&quot; as indicated by index entry...&quot;</span>, entry-&gt;<a class="code hl_variable" href="structIndexEntry.html#a854951a64192d7e4cdcfa6dd6fd2b3ea">offset</a>);</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="keywordflow">return</span>;</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> </div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="comment">// Even if those two checks shall have been done before</span></div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Reading checksum block header at position %&quot;</span> PRIu64, entry-&gt;<a class="code hl_variable" href="structIndexEntry.html#a854951a64192d7e4cdcfa6dd6fd2b3ea">offset</a>);</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> read_bytes = fread(&amp;checksum_header, 1, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structChecksumHeader.html">ChecksumHeader</a>), ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> </div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keywordflow">if</span>(read_bytes != <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structChecksumHeader.html">ChecksumHeader</a>))</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> memset(&amp;checksum_header, 0, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structChecksumHeader.html">ChecksumHeader</a>));</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <a class="code hl_define" href="log_8h.html#a053d6037d543b84ce59308ce71d15cd1">FATAL</a>(<span class="stringliteral">&quot;Could not read checksums block header, continuing...\n&quot;</span>);</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> }</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">if</span>(checksum_header.<a class="code hl_variable" href="structChecksumHeader.html#a2cb8589c2733e9a1cc0c8387da8ae3e3">identifier</a> != <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a3e451c2577a6c790f33f99c2da189d46">ChecksumBlock</a>)</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> memset(&amp;checksum_header, 0, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structChecksumHeader.html">ChecksumHeader</a>));</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <a class="code hl_define" href="log_8h.html#a053d6037d543b84ce59308ce71d15cd1">FATAL</a>(<span class="stringliteral">&quot;Incorrect identifier for checksum block at position %&quot;</span> PRIu64 <span class="stringliteral">&quot;\n&quot;</span>, entry-&gt;<a class="code hl_variable" href="structIndexEntry.html#a854951a64192d7e4cdcfa6dd6fd2b3ea">offset</a>);</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="keywordflow">return</span>;</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> </div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Allocating %u bytes for checksum block&quot;</span>, checksum_header.<a class="code hl_variable" href="structChecksumHeader.html#a56f776d418d05f7284ce811aa3ff1e06">length</a>);</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> data = (uint8_t *)malloc(checksum_header.<a class="code hl_variable" href="structChecksumHeader.html#a56f776d418d05f7284ce811aa3ff1e06">length</a>);</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="keywordflow">if</span>(data == NULL)</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> memset(&amp;checksum_header, 0, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structChecksumHeader.html">ChecksumHeader</a>));</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <a class="code hl_define" href="log_8h.html#a053d6037d543b84ce59308ce71d15cd1">FATAL</a>(<span class="stringliteral">&quot;Could not allocate memory for checksum block, continuing...\n&quot;</span>);</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keywordflow">return</span>;</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> </div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Reading checksum block data at position %&quot;</span> PRIu64, entry-&gt;<a class="code hl_variable" href="structIndexEntry.html#a854951a64192d7e4cdcfa6dd6fd2b3ea">offset</a> + <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structChecksumHeader.html">ChecksumHeader</a>));</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> read_bytes = fread(data, 1, checksum_header.<a class="code hl_variable" href="structChecksumHeader.html#a56f776d418d05f7284ce811aa3ff1e06">length</a>, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</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> <span class="keywordflow">if</span>(read_bytes != checksum_header.<a class="code hl_variable" href="structChecksumHeader.html#a56f776d418d05f7284ce811aa3ff1e06">length</a>)</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> {</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> memset(&amp;checksum_header, 0, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structChecksumHeader.html">ChecksumHeader</a>));</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> free(data);</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <a class="code hl_define" href="log_8h.html#a053d6037d543b84ce59308ce71d15cd1">FATAL</a>(<span class="stringliteral">&quot;Could not read checksums block, continuing...\n&quot;</span>);</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> }</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> </div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> payload_pos = 0;</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Processing %u checksum entries&quot;</span>, checksum_header.<a class="code hl_variable" href="structChecksumHeader.html#aa82464bce9c97dda1066930b9250cfbe">entries</a>);</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keywordflow">for</span>(j = 0; j &lt; checksum_header.<a class="code hl_variable" href="structChecksumHeader.html#aa82464bce9c97dda1066930b9250cfbe">entries</a>; j++)</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> <span class="keywordflow">if</span>(payload_pos + <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structChecksumEntry.html">ChecksumEntry</a>) &gt; checksum_header.<a class="code hl_variable" href="structChecksumHeader.html#a56f776d418d05f7284ce811aa3ff1e06">length</a>)</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> <a class="code hl_define" href="log_8h.html#a053d6037d543b84ce59308ce71d15cd1">FATAL</a>(<span class="stringliteral">&quot;Checksum entry %d exceeds block payload size&quot;</span>, j);</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> }</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> checksum_entry = (<span class="keyword">const</span> <a class="code hl_struct" href="structChecksumEntry.html">ChecksumEntry</a> *)&amp;data[payload_pos];</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> payload_pos += <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structChecksumEntry.html">ChecksumEntry</a>);</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> <span class="keywordflow">if</span>(payload_pos + checksum_entry-&gt;<a class="code hl_variable" href="structChecksumEntry.html#a271a3b60fe8dfbbb540bb00c85762c58">length</a> &gt; checksum_header.<a class="code hl_variable" href="structChecksumHeader.html#a56f776d418d05f7284ce811aa3ff1e06">length</a>)</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> <a class="code hl_define" href="log_8h.html#a053d6037d543b84ce59308ce71d15cd1">FATAL</a>(<span class="stringliteral">&quot;Checksum payload for entry %d exceeds block payload size&quot;</span>, j);</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="keywordflow">break</span>;</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> </div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keywordflow">switch</span>(checksum_entry-&gt;<a class="code hl_variable" href="structChecksumEntry.html#aae2307548d69d23749ffdfd9d4acd627">type</a>)</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> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="enums_8h.html#abda1f9cb04c30fc71ee8c6081d21ee0ea6b71eaa2d57de3fc320990a29ce48d36">Md5</a>:</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <span class="keywordflow">if</span>(checksum_entry-&gt;<a class="code hl_variable" href="structChecksumEntry.html#a271a3b60fe8dfbbb540bb00c85762c58">length</a> != <a class="code hl_define" href="context_8h.html#a09a4f4b2f28cbe522d9b80153666029c">MD5_DIGEST_LENGTH</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> <a class="code hl_define" href="log_8h.html#a053d6037d543b84ce59308ce71d15cd1">FATAL</a>(<span class="stringliteral">&quot;MD5 checksum entry has invalid length %u&quot;</span>, checksum_entry-&gt;<a class="code hl_variable" href="structChecksumEntry.html#a271a3b60fe8dfbbb540bb00c85762c58">length</a>);</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">break</span>;</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> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Found MD5 checksum&quot;</span>);</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> memcpy(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a07a920267b1112bfb238ba54e7a74e80">checksums</a>.<a class="code hl_variable" href="structChecksums.html#a9a47b66429ab4db300fdb7fcb931a867">md5</a>, &amp;data[payload_pos], <a class="code hl_define" href="context_8h.html#a09a4f4b2f28cbe522d9b80153666029c">MD5_DIGEST_LENGTH</a>);</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a07a920267b1112bfb238ba54e7a74e80">checksums</a>.<a class="code hl_variable" href="structChecksums.html#acd52d3e5df013ac7e30354d93d41ef72">hasMd5</a> = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="enums_8h.html#abda1f9cb04c30fc71ee8c6081d21ee0ea57867fd2e139c87d4ae5faef0078a903">Sha1</a>:</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="keywordflow">if</span>(checksum_entry-&gt;<a class="code hl_variable" href="structChecksumEntry.html#a271a3b60fe8dfbbb540bb00c85762c58">length</a> != <a class="code hl_define" href="sha1_8h.html#a341f900ed2019f4da21d6970417f9efc">SHA1_DIGEST_LENGTH</a>)</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> <a class="code hl_define" href="log_8h.html#a053d6037d543b84ce59308ce71d15cd1">FATAL</a>(<span class="stringliteral">&quot;SHA1 checksum entry has invalid length %u&quot;</span>, checksum_entry-&gt;<a class="code hl_variable" href="structChecksumEntry.html#a271a3b60fe8dfbbb540bb00c85762c58">length</a>);</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="keywordflow">break</span>;</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> </div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Found SHA1 checksum&quot;</span>);</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> memcpy(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a07a920267b1112bfb238ba54e7a74e80">checksums</a>.<a class="code hl_variable" href="structChecksums.html#a59a7f4fc7db0867035acf60477afd4a6">sha1</a>, &amp;data[payload_pos], <a class="code hl_define" href="sha1_8h.html#a341f900ed2019f4da21d6970417f9efc">SHA1_DIGEST_LENGTH</a>);</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a07a920267b1112bfb238ba54e7a74e80">checksums</a>.<a class="code hl_variable" href="structChecksums.html#ac19eb1258cf0bf1c1998dfef7ae52550">hasSha1</a> = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="enums_8h.html#abda1f9cb04c30fc71ee8c6081d21ee0eacce7cd78517eecf9be314e0d47e2788c">Sha256</a>:</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="keywordflow">if</span>(checksum_entry-&gt;<a class="code hl_variable" href="structChecksumEntry.html#a271a3b60fe8dfbbb540bb00c85762c58">length</a> != <a class="code hl_define" href="sha256_8h.html#aa9cf0abf87b30c4c63e9c7e89c590579">SHA256_DIGEST_LENGTH</a>)</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> <a class="code hl_define" href="log_8h.html#a053d6037d543b84ce59308ce71d15cd1">FATAL</a>(<span class="stringliteral">&quot;SHA256 checksum entry has invalid length %u&quot;</span>, checksum_entry-&gt;<a class="code hl_variable" href="structChecksumEntry.html#a271a3b60fe8dfbbb540bb00c85762c58">length</a>);</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="keywordflow">break</span>;</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> </div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Found SHA256 checksum&quot;</span>);</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> memcpy(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a07a920267b1112bfb238ba54e7a74e80">checksums</a>.<a class="code hl_variable" href="structChecksums.html#a9808d260d9b2ad0c172db164126266a3">sha256</a>, &amp;data[payload_pos], <a class="code hl_define" href="sha256_8h.html#aa9cf0abf87b30c4c63e9c7e89c590579">SHA256_DIGEST_LENGTH</a>);</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a07a920267b1112bfb238ba54e7a74e80">checksums</a>.<a class="code hl_variable" href="structChecksums.html#a4f404ac9841b3f06f8130722ec613ceb">hasSha256</a> = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="enums_8h.html#abda1f9cb04c30fc71ee8c6081d21ee0ead603a5fa54bfacf5bf36eca36c6b54cb">SpamSum</a>:</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Found SpamSum checksum of size %u&quot;</span>, checksum_entry-&gt;<a class="code hl_variable" href="structChecksumEntry.html#a271a3b60fe8dfbbb540bb00c85762c58">length</a>);</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> free(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a07a920267b1112bfb238ba54e7a74e80">checksums</a>.<a class="code hl_variable" href="structChecksums.html#a1748cd355e21a7b0f4f730dd16bd9752">spamsum</a>);</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a07a920267b1112bfb238ba54e7a74e80">checksums</a>.<a class="code hl_variable" href="structChecksums.html#a1748cd355e21a7b0f4f730dd16bd9752">spamsum</a> = NULL;</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> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a07a920267b1112bfb238ba54e7a74e80">checksums</a>.<a class="code hl_variable" href="structChecksums.html#a1748cd355e21a7b0f4f730dd16bd9752">spamsum</a> = malloc(checksum_entry-&gt;<a class="code hl_variable" href="structChecksumEntry.html#a271a3b60fe8dfbbb540bb00c85762c58">length</a> + 1);</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> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a07a920267b1112bfb238ba54e7a74e80">checksums</a>.<a class="code hl_variable" href="structChecksums.html#a1748cd355e21a7b0f4f730dd16bd9752">spamsum</a> == NULL)</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> {</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <a class="code hl_define" href="log_8h.html#a053d6037d543b84ce59308ce71d15cd1">FATAL</a>(<span class="stringliteral">&quot;Could not allocate memory for SpamSum digest&quot;</span>);</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <span class="keywordflow">break</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> </div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> memcpy(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a07a920267b1112bfb238ba54e7a74e80">checksums</a>.<a class="code hl_variable" href="structChecksums.html#a1748cd355e21a7b0f4f730dd16bd9752">spamsum</a>, &amp;data[payload_pos], checksum_entry-&gt;<a class="code hl_variable" href="structChecksumEntry.html#a271a3b60fe8dfbbb540bb00c85762c58">length</a>);</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a07a920267b1112bfb238ba54e7a74e80">checksums</a>.<a class="code hl_variable" href="structChecksums.html#a1748cd355e21a7b0f4f730dd16bd9752">spamsum</a>[checksum_entry-&gt;<a class="code hl_variable" href="structChecksumEntry.html#a271a3b60fe8dfbbb540bb00c85762c58">length</a>] = <span class="charliteral">&#39;\0&#39;</span>;</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a07a920267b1112bfb238ba54e7a74e80">checksums</a>.<a class="code hl_variable" href="structChecksums.html#abe4e66c6bb57259dd1312f5cfb7730a5">hasSpamSum</a> = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="keywordflow">default</span>:</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Unknown checksum type %u, skipping&quot;</span>, checksum_entry-&gt;<a class="code hl_variable" href="structChecksumEntry.html#aae2307548d69d23749ffdfd9d4acd627">type</a>);</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> }</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> </div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> payload_pos += checksum_entry-&gt;<a class="code hl_variable" href="structChecksumEntry.html#a271a3b60fe8dfbbb540bb00c85762c58">length</a>;</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> checksum_entry = NULL;</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> free(data);</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> </div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Exiting process_checksum_block()&quot;</span>);</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span>}</div>
</div>
<div class="ttc" id="achecksum_8c_html_a565eace88f86c500249be1f2a89a1c60"><div class="ttname"><a href="checksum_8c.html#a565eace88f86c500249be1f2a89a1c60">process_checksum_block</a></div><div class="ttdeci">void process_checksum_block(aaruformat_context *ctx, const IndexEntry *entry)</div><div class="ttdoc">Processes a checksum block from the image stream.</div><div class="ttdef"><b>Definition</b> <a href="#l00039">checksum.c:39</a></div></div>
<div class="ttc" id="achecksum_8h_html"><div class="ttname"><a href="checksum_8h.html">checksum.h</a></div><div class="ttdoc">On-disk layout definitions for the checksum block (BlockType::ChecksumBlock).</div></div>
<div class="ttc" id="acontext_8h_html"><div class="ttname"><a href="context_8h.html">context.h</a></div><div class="ttdoc">Central runtime context structures for libaaruformat (image state, caches, checksum buffers).</div></div>
<div class="ttc" id="acontext_8h_html_a09a4f4b2f28cbe522d9b80153666029c"><div class="ttname"><a href="context_8h.html#a09a4f4b2f28cbe522d9b80153666029c">MD5_DIGEST_LENGTH</a></div><div class="ttdeci">#define MD5_DIGEST_LENGTH</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00069">context.h:69</a></div></div>
<div class="ttc" id="aenums_8h_html"><div class="ttname"><a href="enums_8h.html">enums.h</a></div></div>
<div class="ttc" id="aenums_8h_html_a54420623f26ab6bb61042b41cccf37a3a3e451c2577a6c790f33f99c2da189d46"><div class="ttname"><a href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a3e451c2577a6c790f33f99c2da189d46">ChecksumBlock</a></div><div class="ttdeci">@ ChecksumBlock</div><div class="ttdoc">Block containing contents checksums.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00152">enums.h:152</a></div></div>
<div class="ttc" id="aenums_8h_html_abda1f9cb04c30fc71ee8c6081d21ee0ea57867fd2e139c87d4ae5faef0078a903"><div class="ttname"><a href="enums_8h.html#abda1f9cb04c30fc71ee8c6081d21ee0ea57867fd2e139c87d4ae5faef0078a903">Sha1</a></div><div class="ttdeci">@ Sha1</div><div class="ttdoc">SHA-1 hash.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00170">enums.h:170</a></div></div>
<div class="ttc" id="aenums_8h_html_abda1f9cb04c30fc71ee8c6081d21ee0ea6b71eaa2d57de3fc320990a29ce48d36"><div class="ttname"><a href="enums_8h.html#abda1f9cb04c30fc71ee8c6081d21ee0ea6b71eaa2d57de3fc320990a29ce48d36">Md5</a></div><div class="ttdeci">@ Md5</div><div class="ttdoc">MD5 hash.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00169">enums.h:169</a></div></div>
<div class="ttc" id="aenums_8h_html_abda1f9cb04c30fc71ee8c6081d21ee0eacce7cd78517eecf9be314e0d47e2788c"><div class="ttname"><a href="enums_8h.html#abda1f9cb04c30fc71ee8c6081d21ee0eacce7cd78517eecf9be314e0d47e2788c">Sha256</a></div><div class="ttdeci">@ Sha256</div><div class="ttdoc">SHA-256 hash.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00171">enums.h:171</a></div></div>
<div class="ttc" id="aenums_8h_html_abda1f9cb04c30fc71ee8c6081d21ee0ead603a5fa54bfacf5bf36eca36c6b54cb"><div class="ttname"><a href="enums_8h.html#abda1f9cb04c30fc71ee8c6081d21ee0ead603a5fa54bfacf5bf36eca36c6b54cb">SpamSum</a></div><div class="ttdeci">@ SpamSum</div><div class="ttdoc">SpamSum (context-triggered piecewise hash).</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00172">enums.h:172</a></div></div>
<div class="ttc" id="aindex_8h_html"><div class="ttname"><a href="index_8h.html">index.h</a></div><div class="ttdoc">On‑disk index block header and entry structures (versions 1, 2 and 3).</div></div>
<div class="ttc" id="alog_8h_html"><div class="ttname"><a href="log_8h.html">log.h</a></div></div>
<div class="ttc" id="alog_8h_html_a053d6037d543b84ce59308ce71d15cd1"><div class="ttname"><a href="log_8h.html#a053d6037d543b84ce59308ce71d15cd1">FATAL</a></div><div class="ttdeci">#define FATAL(fmt,...)</div><div class="ttdef"><b>Definition</b> <a href="log_8h_source.html#l00040">log.h:40</a></div></div>
<div class="ttc" id="alog_8h_html_a21cc0459b78d5f2d7bd737e5aae1278a"><div class="ttname"><a href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a></div><div class="ttdeci">#define TRACE(fmt,...)</div><div class="ttdef"><b>Definition</b> <a href="log_8h_source.html#l00025">log.h:25</a></div></div>
<div class="ttc" id="asha1_8h_html_a341f900ed2019f4da21d6970417f9efc"><div class="ttname"><a href="sha1_8h.html#a341f900ed2019f4da21d6970417f9efc">SHA1_DIGEST_LENGTH</a></div><div class="ttdeci">#define SHA1_DIGEST_LENGTH</div><div class="ttdef"><b>Definition</b> <a href="sha1_8h_source.html#l00039">sha1.h:39</a></div></div>
<div class="ttc" id="asha256_8h_html_aa9cf0abf87b30c4c63e9c7e89c590579"><div class="ttname"><a href="sha256_8h.html#aa9cf0abf87b30c4c63e9c7e89c590579">SHA256_DIGEST_LENGTH</a></div><div class="ttdeci">#define SHA256_DIGEST_LENGTH</div><div class="ttdef"><b>Definition</b> <a href="sha256_8h_source.html#l00038">sha256.h:38</a></div></div>
<div class="ttc" id="astructChecksumEntry_html"><div class="ttname"><a href="structChecksumEntry.html">ChecksumEntry</a></div><div class="ttdoc">Per-checksum metadata immediately followed by the digest / signature bytes.</div><div class="ttdef"><b>Definition</b> <a href="checksum_8h_source.html#l00090">checksum.h:91</a></div></div>
<div class="ttc" id="astructChecksumEntry_html_a271a3b60fe8dfbbb540bb00c85762c58"><div class="ttname"><a href="structChecksumEntry.html#a271a3b60fe8dfbbb540bb00c85762c58">ChecksumEntry::length</a></div><div class="ttdeci">uint32_t length</div><div class="ttdoc">Length in bytes of the digest that immediately follows this structure.</div><div class="ttdef"><b>Definition</b> <a href="checksum_8h_source.html#l00093">checksum.h:93</a></div></div>
<div class="ttc" id="astructChecksumEntry_html_aae2307548d69d23749ffdfd9d4acd627"><div class="ttname"><a href="structChecksumEntry.html#aae2307548d69d23749ffdfd9d4acd627">ChecksumEntry::type</a></div><div class="ttdeci">uint8_t type</div><div class="ttdoc">Algorithm used (value from ChecksumAlgorithm).</div><div class="ttdef"><b>Definition</b> <a href="checksum_8h_source.html#l00092">checksum.h:92</a></div></div>
<div class="ttc" id="astructChecksumHeader_html"><div class="ttname"><a href="structChecksumHeader.html">ChecksumHeader</a></div><div class="ttdoc">Header that precedes the sequence of checksum entries for a checksum block.</div><div class="ttdef"><b>Definition</b> <a href="checksum_8h_source.html#l00073">checksum.h:74</a></div></div>
<div class="ttc" id="astructChecksumHeader_html_a2cb8589c2733e9a1cc0c8387da8ae3e3"><div class="ttname"><a href="structChecksumHeader.html#a2cb8589c2733e9a1cc0c8387da8ae3e3">ChecksumHeader::identifier</a></div><div class="ttdeci">uint32_t identifier</div><div class="ttdoc">Block identifier, must be BlockType::ChecksumBlock.</div><div class="ttdef"><b>Definition</b> <a href="checksum_8h_source.html#l00075">checksum.h:75</a></div></div>
<div class="ttc" id="astructChecksumHeader_html_a56f776d418d05f7284ce811aa3ff1e06"><div class="ttname"><a href="structChecksumHeader.html#a56f776d418d05f7284ce811aa3ff1e06">ChecksumHeader::length</a></div><div class="ttdeci">uint32_t length</div><div class="ttdoc">Length in bytes of the payload (all entries + their digest data, excluding this header).</div><div class="ttdef"><b>Definition</b> <a href="checksum_8h_source.html#l00076">checksum.h:76</a></div></div>
<div class="ttc" id="astructChecksumHeader_html_aa82464bce9c97dda1066930b9250cfbe"><div class="ttname"><a href="structChecksumHeader.html#aa82464bce9c97dda1066930b9250cfbe">ChecksumHeader::entries</a></div><div class="ttdeci">uint8_t entries</div><div class="ttdoc">Number of checksum entries that follow in the payload.</div><div class="ttdef"><b>Definition</b> <a href="checksum_8h_source.html#l00077">checksum.h:77</a></div></div>
<div class="ttc" id="astructChecksums_html_a1748cd355e21a7b0f4f730dd16bd9752"><div class="ttname"><a href="structChecksums.html#a1748cd355e21a7b0f4f730dd16bd9752">Checksums::spamsum</a></div><div class="ttdeci">uint8_t * spamsum</div><div class="ttdoc">SpamSum fuzzy hash (ASCII), allocated length+1 with trailing 0.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00110">context.h:110</a></div></div>
<div class="ttc" id="astructChecksums_html_a4f404ac9841b3f06f8130722ec613ceb"><div class="ttname"><a href="structChecksums.html#a4f404ac9841b3f06f8130722ec613ceb">Checksums::hasSha256</a></div><div class="ttdeci">bool hasSha256</div><div class="ttdoc">True if sha256[] buffer populated.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00103">context.h:103</a></div></div>
<div class="ttc" id="astructChecksums_html_a59a7f4fc7db0867035acf60477afd4a6"><div class="ttname"><a href="structChecksums.html#a59a7f4fc7db0867035acf60477afd4a6">Checksums::sha1</a></div><div class="ttdeci">uint8_t sha1[20]</div><div class="ttdoc">SHA-1 digest (20 bytes).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00107">context.h:107</a></div></div>
<div class="ttc" id="astructChecksums_html_a9808d260d9b2ad0c172db164126266a3"><div class="ttname"><a href="structChecksums.html#a9808d260d9b2ad0c172db164126266a3">Checksums::sha256</a></div><div class="ttdeci">uint8_t sha256[32]</div><div class="ttdoc">SHA-256 digest (32 bytes).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00108">context.h:108</a></div></div>
<div class="ttc" id="astructChecksums_html_a9a47b66429ab4db300fdb7fcb931a867"><div class="ttname"><a href="structChecksums.html#a9a47b66429ab4db300fdb7fcb931a867">Checksums::md5</a></div><div class="ttdeci">uint8_t md5[16]</div><div class="ttdoc">MD5 digest (16 bytes).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00106">context.h:106</a></div></div>
<div class="ttc" id="astructChecksums_html_abe4e66c6bb57259dd1312f5cfb7730a5"><div class="ttname"><a href="structChecksums.html#abe4e66c6bb57259dd1312f5cfb7730a5">Checksums::hasSpamSum</a></div><div class="ttdeci">bool hasSpamSum</div><div class="ttdoc">True if spamsum pointer allocated and signature read.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00105">context.h:105</a></div></div>
<div class="ttc" id="astructChecksums_html_ac19eb1258cf0bf1c1998dfef7ae52550"><div class="ttname"><a href="structChecksums.html#ac19eb1258cf0bf1c1998dfef7ae52550">Checksums::hasSha1</a></div><div class="ttdeci">bool hasSha1</div><div class="ttdoc">True if sha1[] buffer populated.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00102">context.h:102</a></div></div>
<div class="ttc" id="astructChecksums_html_acd52d3e5df013ac7e30354d93d41ef72"><div class="ttname"><a href="structChecksums.html#acd52d3e5df013ac7e30354d93d41ef72">Checksums::hasMd5</a></div><div class="ttdeci">bool hasMd5</div><div class="ttdoc">True if md5[] buffer populated.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00101">context.h:101</a></div></div>
<div class="ttc" id="astructIndexEntry_html"><div class="ttname"><a href="structIndexEntry.html">IndexEntry</a></div><div class="ttdoc">Single index entry describing a block&#39;s type, (optional) data classification, and file offset.</div><div class="ttdef"><b>Definition</b> <a href="index_8h_source.html#l00108">index.h:109</a></div></div>
<div class="ttc" id="astructIndexEntry_html_a854951a64192d7e4cdcfa6dd6fd2b3ea"><div class="ttname"><a href="structIndexEntry.html#a854951a64192d7e4cdcfa6dd6fd2b3ea">IndexEntry::offset</a></div><div class="ttdeci">uint64_t offset</div><div class="ttdoc">Absolute byte offset in the image where the referenced block header begins.</div><div class="ttdef"><b>Definition</b> <a href="index_8h_source.html#l00112">index.h:112</a></div></div>
<div class="ttc" id="astructaaruformat__context_html"><div class="ttname"><a href="structaaruformat__context.html">aaruformat_context</a></div><div class="ttdoc">Master context representing an open or in‑creation Aaru image.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00171">context.h:172</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a07a920267b1112bfb238ba54e7a74e80"><div class="ttname"><a href="structaaruformat__context.html#a07a920267b1112bfb238ba54e7a74e80">aaruformat_context::checksums</a></div><div class="ttdeci">Checksums checksums</div><div class="ttdoc">Whole-image checksums discovered.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00269">context.h:269</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_ab516fae594bde4f76b75488d0a3ca3a8"><div class="ttname"><a href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">aaruformat_context::imageStream</a></div><div class="ttdeci">FILE * imageStream</div><div class="ttdoc">Underlying FILE* stream (binary mode).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00176">context.h:176</a></div></div>
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