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import bind-9-5-0

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<!-- Id: lwres_config.docbook,v 1.9 2007/06/18 23:47:51 tbox Exp -->
<refentry>
  <refentryinfo>

    <date>Jun 30, 2000</date>
  </refentryinfo>

  <refmeta>
    <refentrytitle>lwres_config</refentrytitle>
    <manvolnum>3</manvolnum>
    <refmiscinfo>BIND9</refmiscinfo>
  </refmeta>

  <docinfo>
    <copyright>
      <year>2004</year>
      <year>2005</year>
      <year>2007</year>
      <holder>Internet Systems Consortium, Inc. ("ISC")</holder>
    </copyright>
    <copyright>
      <year>2000</year>
      <year>2001</year>
      <holder>Internet Software Consortium.</holder>
    </copyright>
  </docinfo>

  <refnamediv>
    <refname>lwres_conf_init</refname>
    <refname>lwres_conf_clear</refname>
    <refname>lwres_conf_parse</refname>
    <refname>lwres_conf_print</refname>
    <refname>lwres_conf_get</refname>
    <refpurpose>lightweight resolver configuration</refpurpose>
  </refnamediv>

  <refsynopsisdiv>
    <funcsynopsis>
<funcsynopsisinfo>#include &lt;lwres/lwres.h&gt;</funcsynopsisinfo>
<funcprototype>
        <funcdef>
void
<function>lwres_conf_init</function></funcdef>
        <paramdef>lwres_context_t *<parameter>ctx</parameter></paramdef>
        </funcprototype>
<funcprototype>
        <funcdef>
void
<function>lwres_conf_clear</function></funcdef>
        <paramdef>lwres_context_t *<parameter>ctx</parameter></paramdef>
        </funcprototype>
<funcprototype>
        <funcdef>
lwres_result_t
<function>lwres_conf_parse</function></funcdef>
        <paramdef>lwres_context_t *<parameter>ctx</parameter></paramdef>
        <paramdef>const char *<parameter>filename</parameter></paramdef>
        </funcprototype>
<funcprototype>
        <funcdef>
lwres_result_t
<function>lwres_conf_print</function></funcdef>
        <paramdef>lwres_context_t *<parameter>ctx</parameter></paramdef>
        <paramdef>FILE *<parameter>fp</parameter></paramdef>
        </funcprototype>
<funcprototype>
        <funcdef>
lwres_conf_t *
<function>lwres_conf_get</function></funcdef>
        <paramdef>lwres_context_t *<parameter>ctx</parameter></paramdef>
      </funcprototype>
</funcsynopsis>
  </refsynopsisdiv>

  <refsect1>
    <title>DESCRIPTION</title>

    <para><function>lwres_conf_init()</function>
      creates an empty
      <type>lwres_conf_t</type>
      structure for lightweight resolver context
      <parameter>ctx</parameter>.
    </para>

    <para><function>lwres_conf_clear()</function>
      frees up all the internal memory used by
      that
      <type>lwres_conf_t</type>
      structure in resolver context
      <parameter>ctx</parameter>.
    </para>

    <para><function>lwres_conf_parse()</function>
      opens the file
      <parameter>filename</parameter>
      and parses it to initialise the resolver context
      <parameter>ctx</parameter>'s
      <type>lwres_conf_t</type>
      structure.
    </para>

    <para><function>lwres_conf_print()</function>
      prints the
      <type>lwres_conf_t</type>
      structure for resolver context
      <parameter>ctx</parameter>
      to the
      <type>FILE</type>
      <parameter>fp</parameter>.
    </para>
  </refsect1>
  <refsect1>

    <title>RETURN VALUES</title>

    <para><function>lwres_conf_parse()</function>
      returns <errorcode>LWRES_R_SUCCESS</errorcode>
      if it successfully read and parsed
      <parameter>filename</parameter>.
      It returns <errorcode>LWRES_R_FAILURE</errorcode>
      if <parameter>filename</parameter>
      could not be opened or contained incorrect
      resolver statements.
    </para>

    <para><function>lwres_conf_print()</function>
      returns <errorcode>LWRES_R_SUCCESS</errorcode>
      unless an error occurred when converting the network addresses to a
      numeric host address string.
      If this happens, the function returns
      <errorcode>LWRES_R_FAILURE</errorcode>.
    </para>
  </refsect1>
  <refsect1>
    <title>SEE ALSO</title>
    <para><citerefentry>
        <refentrytitle>stdio</refentrytitle><manvolnum>3</manvolnum>
      </citerefentry>,
      <citerefentry>
        <refentrytitle>resolver</refentrytitle><manvolnum>5</manvolnum>
      </citerefentry>.
    </para>
  </refsect1>
  <refsect1>
    <title>FILES</title>
    <para><filename>/etc/resolv.conf</filename>
    </para>
  </refsect1>
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