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<title>krb5_sname_to_principal - Generate a full principal name from a service name. — MIT Kerberos Documentation</title>
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<section id="krb5-sname-to-principal-generate-a-full-principal-name-from-a-service-name">
<h1>krb5_sname_to_principal - Generate a full principal name from a service name.<a class="headerlink" href="#krb5-sname-to-principal-generate-a-full-principal-name-from-a-service-name" title="Link to this heading">¶</a></h1>
<dl class="c function">
<dt class="sig sig-object c" id="c.krb5_sname_to_principal">
<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_sname_to_principal</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>, <span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="kt"><span class="pre">char</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">hostname</span></span>, <span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="kt"><span class="pre">char</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">sname</span></span>, <a class="reference internal" href="../types/krb5_int32.html#c.krb5_int32" title="krb5_int32"><span class="n"><span class="pre">krb5_int32</span></span></a><span class="w"> </span><span class="n"><span class="pre">type</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">ret_princ</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.krb5_sname_to_principal" title="Link to this definition">¶</a><br /></dt>
<dd></dd></dl>
<dl class="field-list">
<dt class="field-odd">param<span class="colon">:</span></dt>
<dd class="field-odd"><p><strong>[in]</strong> <strong>context</strong> - Library context</p>
<p><strong>[in]</strong> <strong>hostname</strong> - Host name, or NULL to use local host</p>
<p><strong>[in]</strong> <strong>sname</strong> - Service name, or NULL to use <strong>“host”</strong></p>
<p><strong>[in]</strong> <strong>type</strong> - Principal type</p>
<p><strong>[out]</strong> <strong>ret_princ</strong> - Generated principal</p>
</dd>
</dl>
<dl class="field-list simple">
<dt class="field-odd">retval<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p>0 Success</p></li>
</ul>
</dd>
<dt class="field-even">return<span class="colon">:</span></dt>
<dd class="field-even"><ul class="simple">
<li><p>Kerberos error codes</p></li>
</ul>
</dd>
</dl>
<p>This function converts a <em>hostname</em> and <em>sname</em> into <em>krb5_principal</em> structure <em>ret_princ</em> . The returned principal will be of the form <em>sname/hostname@REALM</em> where REALM is determined by krb5_get_host_realm(). In some cases this may be the referral (empty) realm.</p>
<p>The <em>type</em> can be one of the following:</p>
<blockquote>
<div><blockquote>
<div><ul class="simple">
<li><p>KRB5_NT_SRV_HST canonicalizes the host name before looking up the realm and generating the principal.</p></li>
<li><p>KRB5_NT_UNKNOWN accepts the hostname as given, and does not canonicalize it.</p></li>
</ul>
</div></blockquote>
<p>Use krb5_free_principal to free <em>ret_princ</em> when it is no longer needed.</p>
</div></blockquote>
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