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<section id="krb5-cc-select-select-a-credential-cache-to-use-with-a-server-principal">
<h1>krb5_cc_select - Select a credential cache to use with a server principal.<a class="headerlink" href="#krb5-cc-select-select-a-credential-cache-to-use-with-a-server-principal" title="Permalink to this headline">¶</a></h1>
<dl class="c function">
<dt class="sig sig-object c" id="c.krb5_cc_select">
<a class="reference internal" href="../types/krb5_error_code.html#c.krb5_error_code" title="krb5_error_code"><span class="n"><span class="pre">krb5_error_code</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">krb5_cc_select</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="../types/krb5_context.html#c.krb5_context" title="krb5_context"><span class="n"><span class="pre">krb5_context</span></span></a><span class="w"> </span><span class="n"><span class="pre">context</span></span>, <a class="reference internal" href="../types/krb5_principal.html#c.krb5_principal" title="krb5_principal"><span class="n"><span class="pre">krb5_principal</span></span></a><span class="w"> </span><span class="n"><span class="pre">server</span></span>, <a class="reference internal" href="../types/krb5_ccache.html#c.krb5_ccache" title="krb5_ccache"><span class="n"><span class="pre">krb5_ccache</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">cache_out</span></span>, <a class="reference internal" href="../types/krb5_principal.html#c.krb5_principal" title="krb5_principal"><span class="n"><span class="pre">krb5_principal</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">princ_out</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.krb5_cc_select" title="Permalink to this definition">¶</a><br /></dt>
<dd></dd></dl>
<dl class="field-list">
<dt class="field-odd">param</dt>
<dd class="field-odd"><p><strong>[in]</strong> <strong>context</strong> - Library context</p>
<p><strong>[in]</strong> <strong>server</strong> - Server principal</p>
<p><strong>[out]</strong> <strong>cache_out</strong> - Credential cache handle</p>
<p><strong>[out]</strong> <strong>princ_out</strong> - Client principal</p>
</dd>
</dl>
<dl class="field-list simple">
<dt class="field-odd">return</dt>
<dd class="field-odd"><ul class="simple">
<li><p>If an appropriate cache is found, 0 is returned, cache_out is set to the selected cache, and princ_out is set to the default principal of that cache.</p></li>
</ul>
</dd>
</dl>
<p>Select a cache within the collection containing credentials most appropriate for use with <em>server</em> , according to configured rules and heuristics.</p>
<p>Use krb5_cc_close() to release <em>cache_out</em> when it is no longer needed. Use krb5_free_principal() to release <em>princ_out</em> when it is no longer needed. Note that <em>princ_out</em> is set in some error conditions.</p>
<p>If the appropriate client principal can be authoritatively determined but the cache collection contains no credentials for that principal, then KRB5_CC_NOTFOUND is returned, <em>cache_out</em> is set to NULL, and <em>princ_out</em> is set to the appropriate client principal.</p>
<p>If no configured mechanism can determine the appropriate cache or principal, KRB5_CC_NOTFOUND is returned and <em>cache_out</em> and <em>princ_out</em> are set to NULL.</p>
<p>Any other error code indicates a fatal error in the processing of a cache selection mechanism.</p>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>New in 1.10</p>
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