span><span class="dv">1</span><span class="op">)</span> <span class="op">{</span></span>
<span id="cb25-30"><a href="flocking.html#cb25-30"></a>        perror<span class="op">(</span><span class="st">&quot;fcntl&quot;</span><span class="op">);</span></span>
<span id="cb25-31"><a href="flocking.html#cb25-31"></a>        exit<span class="op">(</span><span class="dv">1</span><span class="op">);</span></span>
<span id="cb25-32"><a href="flocking.html#cb25-32"></a>    <span class="op">}</span></span>
<span id="c