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<h1>krb5_kt_read_service_key - Retrieve a service key from a key table.<a class="headerlink" href="#krb5-kt-read-service-key-retrieve-a-service-key-from-a-key-table" title="Permalink to this headline">¶</a></h1>
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<dt id="krb5_kt_read_service_key">
<a class="reference internal" href="../types/krb5_error_code.html#krb5_error_code" title="krb5_error_code">krb5_error_code</a> <tt class="descname">krb5_kt_read_service_key</tt><big>(</big><a class="reference internal" href="../types/krb5_context.html#krb5_context" title="krb5_context">krb5_context</a><em> context</em>, <a class="reference internal" href="../types/krb5_pointer.html#krb5_pointer" title="krb5_pointer">krb5_pointer</a><em> keyprocarg</em>, <a class="reference internal" href="../types/krb5_principal.html#krb5_principal" title="krb5_principal">krb5_principal</a><em> principal</em>, <a class="reference internal" href="../types/krb5_kvno.html#krb5_kvno" title="krb5_kvno">krb5_kvno</a><em> vno</em>, <a class="reference internal" href="../types/krb5_enctype.html#krb5_enctype" title="krb5_enctype">krb5_enctype</a><em> enctype</em>, <a class="reference internal" href="../types/krb5_keyblock.html#krb5_keyblock" title="krb5_keyblock">krb5_keyblock</a> **<em> key</em><big>)</big><a class="headerlink" href="#krb5_kt_read_service_key" 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>keyprocarg</strong> - Name of a key table (NULL to use default name)</p>
<p><strong>[in]</strong> <strong>principal</strong> - Service principal</p>
<p><strong>[in]</strong> <strong>vno</strong> - Key version number (0 for highest available)</p>
<p><strong>[in]</strong> <strong>enctype</strong> - Encryption type (0 for any type)</p>
<p class="last"><strong>[out]</strong> <strong>key</strong> - Service key from key table</p>
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<tr class="field-odd field"><th class="field-name">retval:</th><td class="field-body"><ul class="first simple">
<li>0 Success</li>
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<tr class="field-even field"><th class="field-name">return:</th><td class="field-body"><ul class="first last simple">
<li>Kerberos error code if not found or keyprocarg is invalid.</li>
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<p>Open and search the specified key table for the entry identified by <em>principal</em> , <em>enctype</em> , and <em>vno</em> . If no key is found, return an error code.</p>
<p>The default key table is used, unless <em>keyprocarg</em> is non-null. <em>keyprocarg</em> designates a specific key table.</p>
<p>Use <a class="reference internal" href="krb5_free_keyblock.html#krb5_free_keyblock" title="krb5_free_keyblock"><tt class="xref c c-func docutils literal"><span class="pre">krb5_free_keyblock()</span></tt></a> to free <em>key</em> when it is no longer needed.</p>
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