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<a href="https://gitlab.com/dueno">Daiki Ueno</a>
commented on a
discussion on <a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1304#note_394626917">src/common.c</a>:
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<pre style="margin: 0;"> <span id="LC282" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC283" class="line" lang="c"> <span class="n" style="color: #333;">gnutls_free</span><span class="p">(</span><span class="n" style="color: #333;">out</span><span class="p">.</span><span class="n" style="color: #333;">data</span><span class="p">);</span></span>
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<pre style="margin: 0;"> <span id="LC284" class="line" lang="c"></span>
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<pre style="margin: 0;">-<span id="LC285" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">status</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC285" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">status</span><span class="p">)</span> <span class="p">{</span></span>
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<pre style="margin: 0;">+<span id="LC286" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="o" style="font-weight: 600;">!</span><span class="p">(</span><span class="n" style="color: #333;">status</span> <span class="o" style="font-weight: 600;">&</span> <span class="n" style="color: #333;">GNUTLS_CERT_INVALID</span><span class="p">))</span></span>
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<p dir="auto">This is to ensure the <a href="https://www.gnutls.org/manual/html_node/Verifying-X_002e509-certificate-paths.html#Verifying-X_002e509-certificate-paths" rel="nofollow noreferrer noopener" target="_blank">documented</a> behavior: "The GNUTLS_CERT_INVALID flag is always set on a verification error and more detailed flags will also be set when appropriate."</p>
<p dir="auto">IMO this is redundant, but some applications rely on it and we can't break them by removing the invariant.</p>
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