lwres_inetntop.docbook

bind 9.3结合mysql数据库

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<refentry>

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

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

<refnamediv>
<refname>lwres_net_ntop</refname>
<refpurpose>lightweight resolver IP address presentation</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis>
<funcsynopsisinfo>#include &lt;lwres/net.h&gt;</funcsynopsisinfo>
<funcprototype>
<funcdef>
const char *
<function>lwres_net_ntop</function></funcdef>
<paramdef>int af</paramdef>
<paramdef>const void *src</paramdef>
<paramdef>char *dst</paramdef>
<paramdef>size_t size</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>

<refsect1>
<title>DESCRIPTION</title>

<para>
<function>lwres_net_ntop()</function> converts an IP address of
protocol family <parameter>af</parameter> &mdash; IPv4 or IPv6 &mdash;
at location <parameter>src</parameter> from network format to its
conventional representation as a string.  For IPv4 addresses, that
string would be a dotted-decimal.  An IPv6 address would be
represented in colon notation as described in RFC1884.
</para>

<para>
The generated string is copied to <parameter>dst</parameter> provided
<parameter>size</parameter> indicates it is long enough to store the
ASCII representation of the address.
</para>

</refsect1>
<refsect1>
<title>RETURN VALUES</title>

<para>
If successful, the function returns <parameter>dst</parameter>:
a pointer to a string containing the presentation format of the
address.  <function>lwres_net_ntop()</function> returns
<type>NULL</type> and sets the global variable
<constant>errno</constant> to <errorcode>EAFNOSUPPORT</errorcode> if
the protocol family given in <parameter>af</parameter> is not
supported.
</para>

</refsect1>
<refsect1>
<title>SEE ALSO</title>
<para>
<citerefentry>
<refentrytitle>RFC1884</refentrytitle>
</citerefentry>,
<citerefentry>
<refentrytitle>inet_ntop</refentrytitle><manvolnum>3</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum>
</citerefentry>.
</para>
</refsect1>
</refentry>