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---
version: v1.7.2
layout: manpage_v2
title: nn_bind(3compat)
---
<h1>nn_bind(3compat)</h1>
<div class="sect1">
<h2 id="_name">NAME</h2>
<div class="sectionbody">
<div class="paragraph">
<p>nn_bind - accept connections from remote peers (compatible API)</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_synopsis">SYNOPSIS</h2>
<div class="sectionbody">
<div class="listingblock">
<div class="content">
<pre class="pygments highlight"><code data-lang="c"><span></span><span class="tok-cp">#include</span><span class="tok-w"> </span><span class="tok-cpf"><nanomsg/nn.h></span>
<span class="tok-kt">int</span><span class="tok-w"> </span><span class="tok-n">nn_bind</span><span class="tok-p">(</span><span class="tok-kt">int</span><span class="tok-w"> </span><span class="tok-n">sock</span><span class="tok-p">,</span><span class="tok-w"> </span><span class="tok-k">const</span><span class="tok-w"> </span><span class="tok-kt">char</span><span class="tok-w"> </span><span class="tok-o">*</span><span class="tok-n">url</span><span class="tok-p">)</span></code></pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph">
<p>The <code>nn_bind()</code> function arranges for the socket <em>sock</em> to
accept connections at the address specified by <em>url</em>.
An identifier for this socket’s association with the <em>url</em> is
returned to the caller on success.
This identfier can be used with
<a href="nn_shutdown.3compat.html"><code>nn_shutdown()</code></a> to
remove the association later.</p>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
This function is provided for API
<a href="nng_compat.3compat.html">compatibility</a> with legacy <em>libnanomsg</em>.
Consider using the relevant <a href="libnng.3.html">modern API</a> instead.
</td>
</tr>
</table>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
The bind operation is performed asynchronously, and may not have
completed before this function returns control to the caller.
</td>
</tr>
</table>
</div>
<div class="admonitionblock important">
<table>
<tr>
<td class="icon">
<i class="fa icon-important" title="Important"></i>
</td>
<td class="content">
Only transports supported by legacy <em>libnanomsg</em> may be
used with this function.
In particular, only the schemes <code>tcp://</code>, <code>ipc://</code>, <code>inproc://</code>, and <code>ws://</code> are
supported with this function.
(Use the <a href="libnng.3.html">modern API</a> to use other schemes.)
</td>
</tr>
</table>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_return_values">RETURN VALUES</h2>
<div class="sectionbody">
<div class="paragraph">
<p>This function returns a positive identifier on success, and -1 on error.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_errors">ERRORS</h2>
<div class="sectionbody">
<div class="hdlist">
<table>
<tr>
<td class="hdlist1">
<code>EADDRINUSE</code>
</td>
<td class="hdlist2">
<p>The address specified by <em>url</em> is already in use.</p>
</td>
</tr>
<tr>
<td class="hdlist1">
<code>EADDRNOTAVAIL</code>
</td>
<td class="hdlist2">
<p>The address specified by <em>url</em> is not available.</p>
</td>
</tr>
<tr>
<td class="hdlist1">
<code>EBADF</code>
</td>
<td class="hdlist2">
<p>The socket <em>sock</em> is not open.</p>
</td>
</tr>
<tr>
<td class="hdlist1">
<code>EINVAL</code>
</td>
<td class="hdlist2">
<p>An invalid <em>url</em> was supplied.</p>
</td>
</tr>
</table>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_see_also">SEE ALSO</h2>
<div class="sectionbody">
<div class="paragraph text-left">
<p><a href="nn_connect.3compat.html">nn_connect(3compat)</a>,
<a href="nn_errno.3compat.html">nn_errno(3compat)</a>,
<a href="nn_shutdown.3compat.html">nn_shutdown(3compat)</a>,
<a href="nn_socket.3compat.html">nn_socket(3compat)</a>,
<a href="nng_compat.3compat.html">nn_compat(3compat)</a>,
<a href="nng.7.html">nng(7)</a></p>
</div>
</div>
</div>
|
