<p>0xffffffff00000000ULL mask does not take into consideration signed 32 bit<br>
integers and as result 2147483648 will be stored as -2147483648.<br>
Another mask should be used to correct the issue: 0xffffffff80000000ULL.<br>
It processes correctly the case of integers that are greater than 2147483647.</p>
<p>There are several gdb tests below:<br>
(gdb) p ((unsigned long long)2147483648 & 0xffffffff80000000ULL)<br>
$1= 2147483648<br>
(gdb) p ((unsigned long long)2147483647 & 0xffffffff80000000ULL)<br>
$2 = 0<br>
(gdb) p ((unsigned long long)2147483646 & 0xffffffff80000000ULL)<br>
$3 = 0<br>
(gdb) p ((unsigned long long)4147483646 & 0xffffffff80000000ULL)<br>
$4 = 2147483648</p>


<h4>Pre-Submission Checklist</h4>



<ul class="contains-task-list">
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<h4>Type Of Change</h4>
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<h4>Checklist:</h4>

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<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox"> PR should be backported to stable branches</li>
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</ul>
<h4>Description</h4>


<hr>

<h4>You can view, comment on, or merge this pull request online at:</h4>
<p>  <a href='https://github.com/kamailio/kamailio/pull/2106'>https://github.com/kamailio/kamailio/pull/2106</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>lib: big integers should not be treated as negative ones</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/kamailio/kamailio/pull/2106/files#diff-0">src/lib/srdb1/db_ut.c</a>
    (2)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/kamailio/kamailio/pull/2106.patch'>https://github.com/kamailio/kamailio/pull/2106.patch</a></li>
  <li><a href='https://github.com/kamailio/kamailio/pull/2106.diff'>https://github.com/kamailio/kamailio/pull/2106.diff</a></li>
</ul>

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