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<a href="https://gitlab.com/rockdaboot">Tim Rühsen</a>
commented on a
discussion on <a href="https://gitlab.com/gnutls/gnutls/merge_requests/1092#note_229665182">lib/record.c</a>:
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<pre style="margin: 0;"> <span id="LC1506" class="line" lang="c"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">int</span><span class="p">)</span> <span class="n" style="color: #333;">_mbuffer_get_udata_size</span><span class="p">(</span><span class="n" style="color: #333;">decrypted</span><span class="p">));</span></span>
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<pre style="margin: 0;"> <span id="LC1507" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC1508" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/* store the last valid sequence number. We don't use that internally but</span></span>
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<td class="diff-line-num new_line old" data-linenumber="1509" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1509" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * callers of gnutls_record_get_state() could take advantage of it. */</span></span>
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<pre style="margin: 0;">-<span id="LC1510" class="line" lang="c"> <span class="n" style="color: #333;">memcpy</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">record_state</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">sequence_number</span><span class="p">,</span> <span class="n" style="color: #333;">packet_sequence</span><span class="p">,</span> <span class="mi" style="color: #099;">8</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC1509" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * callers of gnutls_record_get_state() could take advantage of it.</span></span>
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<pre style="margin: 0;">+<span id="LC1510" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> *</span></span>
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<pre style="margin: 0;">+<span id="LC1511" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * Coverity issue 1454647 suggest to use memmove() here instead of memcpy().</span></span>
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<pre style="margin: 0;">+<span id="LC1512" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> */</span></span>
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<pre style="margin: 0;">+<span id="LC1513" class="line" lang="c"> <span class="n" style="color: #333;">memmove</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">record_state</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">sequence_number</span><span class="p">,</span> <span class="n" style="color: #333;">packet_sequence</span><span class="p">,</span> <span class="mi" style="color: #099;">8</span><span class="p">);</span></span>
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<p dir="auto">What is we simply replace the memcpy by</p>
<pre class="code highlight js-syntax-highlight plaintext" lang="plaintext" v-pre="true" style="background-color: #fff; font-family: monospace; font-size: 90%; -premailer-cellpadding: 0; -premailer-cellspacing: 0; -premailer-width: 100%; margin: 0;"><code><span id="LC1" class="line" lang="plaintext">record_state->sequence_number = record.sequence;</span></code></pre>
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