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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/1394#note_518230758">lib/ext/server_cert_type.c</a>:
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<pre style="margin: 0;"> <span id="LC199" class="line" lang="c"> <span class="n" style="color: #333;">gnutls_buffer_st</span><span class="o" style="font-weight: 600;">*</span> <span class="n" style="color: #333;">data</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC200" class="line" lang="c"><span class="p">{</span></span>
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<pre style="margin: 0;"> <span id="LC201" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">ret</span><span class="p">;</span></span>
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<pre style="margin: 0;">-<span id="LC196" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">uint8_t</span> <span class="n" style="color: #333;">cert_type</span><span class="p">;</span> <span class="c1" style="color: #998; font-style: italic;">// Holds an IANA cert type ID</span></span>
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<pre style="margin: 0;">+<span id="LC202" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">uint8_t</span> <span class="n" style="color: #333;">cert_type_IANA</span><span class="p">;</span> <span class="c1" style="color: #998; font-style: italic;">// Holds an IANA cert type ID</span></span>
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<pre style="margin: 0;">+<span id="LC203" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">uint8_t</span> <span class="n" style="color: #333;">cert_types</span><span class="p">[</span><span class="n" style="color: #333;">GNUTLS_CRT_MAX</span><span class="p">];</span> <span class="c1" style="color: #998; font-style: italic;">// The list with supported (IANA) cert types. Inv: 0 <= cert type Id < 256</span></span>
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<pre style="margin: 0;"> <span id="LC204" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">uint8_t</span> <span class="n" style="color: #333;">i</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">,</span> <span class="n" style="color: #333;">num_cert_types</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">;</span></span>
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<pre style="margin: 0;"> <span id="LC205" class="line" lang="c"> <span class="n" style="color: #333;">priority_st</span><span class="o" style="font-weight: 600;">*</span> <span class="n" style="color: #333;">cert_priorities</span><span class="p">;</span></span>
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<pre style="margin: 0;"> <span id="LC206" class="line" lang="c"> <span class="n" style="color: #333;">gnutls_datum_t</span> <span class="n" style="color: #333;">tmp_cert_types</span><span class="p">;</span> <span class="c1" style="color: #998; font-style: italic;">// For type conversion</span></span>
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<p dir="auto">I meant for readability; otherwise one would need to go to the beginning of the function every time when she wants to know the type of a variable used in the middle of the function.</p>
<p dir="auto">Although the current code doesn't exceed the <a href="https://www.kernel.org/doc/html/latest/process/coding-style.html#functions" rel="nofollow noreferrer noopener" target="_blank">5-10 limit</a>, it's approaching to it (9 currently). I wouldn't say we should split the function, but re-organizing with separate code blocks would make the code a little more readable.</p>
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