239 lines
9.4 KiB
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239 lines
9.4 KiB
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<title>ip::resolver_base</title>
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<link rel="prev" href="ip__port_type.html" title="ip::port_type">
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../asio.png"></td></tr></table>
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<hr>
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<div class="spirit-nav">
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<a accesskey="p" href="ip__port_type.html"><img src="../../prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../home.png" alt="Home"></a><a accesskey="n" href="ip__resolver_base/address_configured.html"><img src="../../next.png" alt="Next"></a>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="asio.reference.ip__resolver_base"></a><a class="link" href="ip__resolver_base.html" title="ip::resolver_base">ip::resolver_base</a>
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</h3></div></div></div>
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<p>
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<a class="indexterm" name="asio.indexterm.ip__resolver_base"></a>
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</p>
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<p>
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The <a class="link" href="ip__resolver_base.html" title="ip::resolver_base"><code class="computeroutput"><span class="identifier">ip</span><span class="special">::</span><span class="identifier">resolver_base</span></code></a>
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class is used as a base for the <a class="link" href="ip__basic_resolver.html" title="ip::basic_resolver"><code class="computeroutput"><span class="identifier">ip</span><span class="special">::</span><span class="identifier">basic_resolver</span></code></a>
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class templates to provide a common place to define the flag constants.
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</p>
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<pre class="programlisting"><span class="keyword">class</span> <span class="identifier">resolver_base</span>
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</pre>
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<h5>
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<a name="asio.reference.ip__resolver_base.h0"></a>
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<span><a name="asio.reference.ip__resolver_base.types"></a></span><a class="link" href="ip__resolver_base.html#asio.reference.ip__resolver_base.types">Types</a>
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</h5>
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<div class="informaltable"><table class="table">
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Name
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<p>
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Description
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</tr></thead>
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<tbody><tr>
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<td>
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<p>
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<a class="link" href="ip__resolver_base/flags.html" title="ip::resolver_base::flags"><span class="bold"><strong>flags</strong></span></a>
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</p>
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</td>
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<p>
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A bitmask type (C++ Std [lib.bitmask.types]).
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</p>
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</tr></tbody>
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</table></div>
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<h5>
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<a name="asio.reference.ip__resolver_base.h1"></a>
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<span><a name="asio.reference.ip__resolver_base.protected_member_functions"></a></span><a class="link" href="ip__resolver_base.html#asio.reference.ip__resolver_base.protected_member_functions">Protected
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Member Functions</a>
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<thead><tr>
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Name
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Description
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</tr></thead>
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<p>
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<a class="link" href="ip__resolver_base/_resolver_base.html" title="ip::resolver_base::~resolver_base"><span class="bold"><strong>~resolver_base</strong></span></a> <span class="silver">[destructor]</span>
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Protected destructor to prevent deletion through this type.
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</tr></tbody>
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</table></div>
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<h5>
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<a name="asio.reference.ip__resolver_base.h2"></a>
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<span><a name="asio.reference.ip__resolver_base.data_members"></a></span><a class="link" href="ip__resolver_base.html#asio.reference.ip__resolver_base.data_members">Data
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Members</a>
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</h5>
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<div class="informaltable"><table class="table">
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<thead><tr>
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Name
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Description
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</tr></thead>
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<a class="link" href="ip__resolver_base/address_configured.html" title="ip::resolver_base::address_configured"><span class="bold"><strong>address_configured</strong></span></a> <span class="silver">[static]</span>
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</p>
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</td>
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<td>
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<p>
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Only return IPv4 addresses if a non-loopback IPv4 address is configured
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for the system. Only return IPv6 addresses if a non-loopback IPv6
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address is configured for the system.
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</p>
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</td>
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<p>
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<a class="link" href="ip__resolver_base/all_matching.html" title="ip::resolver_base::all_matching"><span class="bold"><strong>all_matching</strong></span></a> <span class="silver">[static]</span>
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</p>
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<p>
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If used with v4_mapped, return all matching IPv6 and IPv4 addresses.
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</p>
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<p>
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<a class="link" href="ip__resolver_base/canonical_name.html" title="ip::resolver_base::canonical_name"><span class="bold"><strong>canonical_name</strong></span></a> <span class="silver">[static]</span>
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</p>
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</td>
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<td>
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<p>
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Determine the canonical name of the host specified in the query.
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</p>
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</td>
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</tr>
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<p>
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<a class="link" href="ip__resolver_base/numeric_host.html" title="ip::resolver_base::numeric_host"><span class="bold"><strong>numeric_host</strong></span></a> <span class="silver">[static]</span>
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</p>
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</td>
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<td>
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<p>
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Host name should be treated as a numeric string defining an IPv4
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or IPv6 address and no name resolution should be attempted.
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</p>
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</td>
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<p>
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<a class="link" href="ip__resolver_base/numeric_service.html" title="ip::resolver_base::numeric_service"><span class="bold"><strong>numeric_service</strong></span></a> <span class="silver">[static]</span>
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</p>
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</td>
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<td>
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<p>
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Service name should be treated as a numeric string defining a port
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number and no name resolution should be attempted.
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</p>
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</td>
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<p>
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<a class="link" href="ip__resolver_base/passive.html" title="ip::resolver_base::passive"><span class="bold"><strong>passive</strong></span></a> <span class="silver">[static]</span>
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</p>
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</td>
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<td>
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<p>
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Indicate that returned endpoint is intended for use as a locally
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bound socket endpoint.
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</p>
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</td>
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</tr>
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<td>
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<p>
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<a class="link" href="ip__resolver_base/v4_mapped.html" title="ip::resolver_base::v4_mapped"><span class="bold"><strong>v4_mapped</strong></span></a> <span class="silver">[static]</span>
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</p>
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</td>
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<p>
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If the query protocol family is specified as IPv6, return IPv4-mapped
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IPv6 addresses on finding no IPv6 addresses.
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</p>
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</td>
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</tr>
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</tbody>
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</table></div>
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<h5>
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<a name="asio.reference.ip__resolver_base.h3"></a>
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<span><a name="asio.reference.ip__resolver_base.requirements"></a></span><a class="link" href="ip__resolver_base.html#asio.reference.ip__resolver_base.requirements">Requirements</a>
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</h5>
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<p>
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<span class="emphasis"><em>Header: </em></span><code class="literal">asio/ip/resolver_base.hpp</code>
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</p>
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<p>
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<span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code>
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</p>
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</div>
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<div class="copyright-footer">Copyright © 2003-2023 Christopher M. Kohlhoff<p>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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</p>
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</div>
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<hr>
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<div class="spirit-nav">
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<a accesskey="p" href="ip__port_type.html"><img src="../../prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../home.png" alt="Home"></a><a accesskey="n" href="ip__resolver_base/address_configured.html"><img src="../../next.png" alt="Next"></a>
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</body>
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