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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/1262#note_352341394">lib/x509/verify.c</a>:
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646
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<pre style="margin: 0;"> <span id="LC647" class="line" lang="c"> <span class="n" style="color: #333;">issuer</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">find_issuer</span><span class="p">(</span><span class="n" style="color: #333;">cert</span><span class="p">,</span> <span class="n" style="color: #333;">trusted_cas</span><span class="p">,</span> <span class="n" style="color: #333;">tcas_size</span><span class="p">);</span></span>
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647
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648
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<pre style="margin: 0;"> <span id="LC648" class="line" lang="c"></span>
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649
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<pre style="margin: 0;">+<span id="LC649" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">issuer</span> <span class="o" style="font-weight: 600;">==</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">)</span> <span class="p">{</span></span>
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<td class="diff-line-num new new_line" data-linenumber="650" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC650" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">tlist</span> <span class="o" style="font-weight: 600;">!=</span> <span class="nb" style="color: #0086b3;">NULL</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">tlist</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">issuer_callback</span> <span class="o" style="font-weight: 600;">!=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">)</span> <span class="p">{</span></span>
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<td class="diff-line-num new new_line" data-linenumber="651" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
651
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<pre style="margin: 0;">+<span id="LC651" class="line" lang="c"> <span class="n" style="color: #333;">_gnutls_debug_log</span><span class="p">(</span><span class="s" style="color: #d14;">"Missing issuer callback set.</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC652" class="line" lang="c"> <span class="n" style="color: #333;">ret</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">gnutls_x509_crt_init</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">issuer</span><span class="p">);</span></span>
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653
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<pre style="margin: 0;">+<span id="LC653" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">ret</span> <span class="o" style="font-weight: 600;"><</span> <span class="mi" style="color: #099;">0</span><span class="p">)</span> <span class="p">{</span></span>
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<pre style="margin: 0;">+<span id="LC654" class="line" lang="c"> <span class="n" style="color: #333;">_gnutls_debug_log</span><span class="p">(</span><span class="s" style="color: #d14;">"gnutls_x509_crt_init: %s</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">,</span> <span class="n" style="color: #333;">gnutls_strerror</span><span class="p">(</span><span class="n" style="color: #333;">ret</span><span class="p">));</span></span>
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<pre style="margin: 0;">+<span id="LC655" class="line" lang="c"> <span class="n" style="color: #333;">gnutls_assert</span><span class="p">();</span></span>
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<pre style="margin: 0;">+<span id="LC656" class="line" lang="c"> <span class="n" style="color: #333;">issuer</span> <span class="o" style="font-weight: 600;">=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC657" class="line" lang="c"> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC658" class="line" lang="c"></span>
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<pre style="margin: 0;">+<span id="LC659" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/* missing issuer is populated by the callback */</span></span>
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<pre style="margin: 0;">+<span id="LC660" class="line" lang="c"> <span class="n" style="color: #333;">ret</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">tlist</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">issuer_callback</span><span class="p">(</span><span class="n" style="color: #333;">tlist</span><span class="p">,</span> <span class="n" style="color: #333;">cert</span><span class="p">,</span> <span class="n" style="color: #333;">issuer</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC661" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">ret</span> <span class="o" style="font-weight: 600;"><</span> <span class="mi" style="color: #099;">0</span><span class="p">)</span> <span class="p">{</span></span>
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<pre style="margin: 0;">+<span id="LC662" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/* if the callback fails, continue as though the callback</span></span>
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<p dir="auto">Yes, and isn't that the case already (as long as the terminal or editor renders a tab as 8 spaces)? I rely on Emacs for that job so that such mistakes do not come in.</p>
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