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  <div class="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="function">
<dt id="c.krb5_cc_select">
<a class="reference internal" href="../types/krb5_error_code.html#c.krb5_error_code" title="krb5_error_code">krb5_error_code</a> <code class="descname">krb5_cc_select</code><span class="sig-paren">(</span><a class="reference internal" href="../types/krb5_context.html#c.krb5_context" title="krb5_context">krb5_context</a><em>&nbsp;context</em>, <a class="reference internal" href="../types/krb5_principal.html#c.krb5_principal" title="krb5_principal">krb5_principal</a><em>&nbsp;server</em>, <a class="reference internal" href="../types/krb5_ccache.html#c.krb5_ccache" title="krb5_ccache">krb5_ccache</a> *<em>&nbsp;cache_out</em>, <a class="reference internal" href="../types/krb5_principal.html#c.krb5_principal" title="krb5_principal">krb5_principal</a> *<em>&nbsp;princ_out</em><span class="sig-paren">)</span><a class="headerlink" href="#c.krb5_cc_select" title="Permalink to this definition"></a></dt>
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<tr class="field-odd field"><th class="field-name">param:</th><td class="field-body"><p class="first"><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 class="last"><strong>[out]</strong> <strong>princ_out</strong> - Client principal</p>
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<tr class="field-odd field"><th class="field-name">return:</th><td class="field-body"><ul class="first last simple">
<li>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.</li>
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<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 <a class="reference internal" href="krb5_cc_close.html#c.krb5_cc_close" title="krb5_cc_close"><code class="xref c c-func docutils literal"><span class="pre">krb5_cc_close()</span></code></a> to release <em>cache_out</em> when it is no longer needed. Use <a class="reference internal" href="krb5_free_principal.html#c.krb5_free_principal" title="krb5_free_principal"><code class="xref c c-func docutils literal"><span class="pre">krb5_free_principal()</span></code></a> 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="first admonition-title">Note</p>
<p class="last">New in 1.10</p>
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