Thanks a lot for the fast answer.<br><br>I have another question about the boost::mutable_buffer since they are used to send and receive payload through the upd socket with the methods send_to and receive_from.<br>I&#39;d like to know how can I assign the content of a mutable_buffer to a char * ?<br>
I found the method buffer_cast (<a href="http://www.boost.org/doc/libs/1_37_0/doc/html/boost_asio/reference/mutable_buffer/buffer_cast.html">http://www.boost.org/doc/libs/1_37_0/doc/html/boost_asio/reference/mutable_buffer/buffer_cast.html</a>) but I don&#39;t really understand how to use it.<br>
<br>Thanks in advance for the help.<br>Johan<br><br><div class="gmail_quote">2009/1/22 Igor R <span dir="ltr">&lt;<a href="mailto:boost.lists@gmail.com">boost.lists@gmail.com</a>&gt;</span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div dir="ltr"><div class="gmail_quote"><div class="Ih2E3d">
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;"><pre><br><span>udp</span><span>::</span><span>resolver</span> <span>resolver</span><span>(</span><span>io_service</span><span>);</span><br>


<span>udp</span><span>::</span><span>resolver</span><span>::</span><span>query</span> <span>query</span><span>(</span><span>udp</span><span>::</span><span>v4</span><span>(),</span> <span>argv</span><span>[</span><span>1</span><span>],</span> <span>&quot;daytime&quot;</span><span>);</span><br>


<span>udp</span><span>::</span><span>endpoint</span> <span>receiver_endpoint</span> <span>=</span> <span>*</span><span>resolver</span><span>.</span><span>resolve</span><span>(</span><span>query</span><span>);</span><br>
<br><span>udp</span><span>::</span><span>socket</span> <span>socket</span><span>(</span><span>io_service</span><span>);</span><br>
<span>socket</span><span>.</span><span>open</span><span>(</span><span>udp</span><span>::</span><span>v4</span><span>());</span></pre><br>But, to send something else than a Daytime request, I need to know what are the avalaible option to put instead of &quot;daytime&quot; in this line :<br>

<pre><br><span>udp</span><span>::</span><span>resolver</span><span>::</span><span>query</span> <span>query</span><span>(</span><span>udp</span><span>::</span><span>v4</span><span>(),</span> <span>argv</span><span>[</span><span>1</span><span>],</span> <span>&quot;daytime&quot;</span><span>);</span></pre>

</blockquote>
<div>&nbsp;</div>
</div><div>&nbsp;udp::resolver::query query(udp::v4(), &quot;192.168.1.10&quot;, &quot;8080&quot;);</div>
<div>&nbsp;</div>
<div>&nbsp;</div></div></div>
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