man page updates for tip

25 files changed, 13680 insertions, 74 deletions

diff --git a/man/tip/index.html b/man/tip/index.html
index afa001b9..b5d8d84a 100644
--- a/man/tip/index.html
+++ b/man/tip/index.html
@@ -877,7 +877,9 @@ callable by applications.</p>
 <h2 id="_section_3compat_compatible_library_functions">Section 3compat: Compatible Library Functions</h2>
 <div class="sectionbody">
 <div class="paragraph">
-<p>This section documents the <em>nanomsg</em> 1.0 libary compatible functions.</p>
+<p>This section documents the <em>nanomsg</em> 1.0 libary compatible functions.
+The functions in this section not be used except to aid in transitioning
+from the older <em>libnanomsg</em> library.</p>
 </div>
 <table class="tableblock frame-all grid-all spread">
 <colgroup>
@@ -886,6 +888,86 @@ callable by applications.</p>
 </colgroup>
 <tbody>
 <tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_allocmsg.3compat.html">nn_allocmsg(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">allocate message (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_bind.3compat.html">nn_bind(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">accept connections from remote peers (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_close.3compat.html">nn_close(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">close socket (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_cmsg.3compat.html">nn_cmsg(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">message control data (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_connect.3compat.html">nn_connect(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">connect to remote peer (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_device.3compat.html">nn_device(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">create forwarding device (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_errno.3compat.html">nn_errno(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">return most recent error (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_freemsg.3compat.html">nn_freemsg(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">free message (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_get_statistic.3compat.html">nn_get_statistic(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">get statistic (stub)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_getsockopt.3compat.html">nn_getsockopt(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">get socket option (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_reallocmsg.3compat.html">nn_reallocmsg(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">reallocate message (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_recv.3compat.html">nn_recv(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">receive data (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_recvmsg.3compat.html">nn_recvmsg(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">receive message (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_send.3compat.html">nn_send(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">send data (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_sendmsg.3compat.html">nn_sendmsg(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">send message (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_setsockopt.3compat.html">nn_setsockopt(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">set socket option (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_shutdown.3compat.html">nn_shutdown(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">shut down endpoint (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_socket.3compat.html">nn_socket(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">create socket (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_strerror.3compat.html">nn_strerror(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">return message for error (compatible API)</p></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nn_term.3compat.html">nn_term(3compat)</a></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">terminate library (compatible API)</p></td>
+</tr>
+<tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock"><a href="nng_compat.3compat.html">nng_compat(3compat)</a></p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">compatibility with nanomsg 1.0</p></td>
 </tr>
diff --git a/man/tip/nn_allocmsg.3compat.html b/man/tip/nn_allocmsg.3compat.html
new file mode 100644
index 00000000..33861666
--- /dev/null
+++ b/man/tip/nn_allocmsg.3compat.html
@@ -0,0 +1,631 @@
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+---
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+</head>
+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_allocmsg(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_allocmsg - allocate message (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">void</span> <span class="tok-o">*</span><span class="tok-nf">nn_allocmsg</span><span class="tok-p">(</span><span class="tok-kt">size_t</span> <span class="tok-n">size</span><span class="tok-p">,</span> <span class="tok-kt">int</span> <span class="tok-n">type</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_allocmsg()</code> allocates a message structure of size <em>size</em>, and is
+primarily used to support zero-copy send operations, making use of the
+<code>NNG_MSG</code> special size indicator.
+The value returned is a pointer ot the start of the message payload buffer.</p>
+</div>
+<div class="paragraph">
+<p>The value of <em>size</em> must be positive, and small enough to hold reasonable
+message data plus book-keeping information.</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="paragraph">
+<p>The value of <em>type</em> <strong>must</strong> be zero.
+(This argument was reserved to support different kinds of memory spaces
+for RDMA devices, but this was never developed in the legacy API.)</p>
+</div>
+<div class="paragraph">
+<p>The returned message must be disposed of by either
+<code><a href="nn_freemsg.3compat.html">nn_freemsg()</a></code> or
+<code><a href="nn_send.3compat.html">nn_send()</a></code> when the caller is finished with it.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_return_values">RETURN VALUES</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>This function returns a pointer to message buffer space, or <code>NULL</code>
+on failure.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_errors">ERRORS</h2>
+<div class="sectionbody">
+<div class="hdlist">
+<table>
+<tr>
+<td class="hdlist1">
+<code>ENOMEM</code>
+</td>
+<td class="hdlist2">
+<p>Insufficient memory is available.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EINVAL</code>
+</td>
+<td class="hdlist2">
+<p>An invalid <em>size</em> or <em>type</em> was specified.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ETERM</code>
+</td>
+<td class="hdlist2">
+<p>The library is shutting down.</p>
+</td>
+</tr>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nn_errno.3compat.html">nn_errno(3compat)</a>,
+<a href="nn_freemsg.3compat.html">nn_freemsg(3compat)</a>,
+<a href="nn_reallocmsg.3compat.html">nn_reallocmsg(3compat)</a>,
+<a href="nn_send.3compat.html">nn_send(3compat)</a>,
+<a href="nng_compat.3compat.html">nng_compat(3compat)</a>,
+<a href="nng.7.html">nng(7)</a></p>
+</div>
+</div>
+</div>
+</div>
+</body>
+</html>
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+</style>
+</head>
+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_bind(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_bind - accept connections from remote peers (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">int</span> <span class="tok-n">nn_bind</span><span class="tok-p">(</span><span class="tok-kt">int</span> <span class="tok-n">sock</span><span class="tok-p">,</span> <span class="tok-k">const</span> <span class="tok-kt">char</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 &#8220;endpoint identifier&#8221; for this socket&#8217;s association with the <em>url</em> is
+returned to the caller on success.
+This ID can be used with <code><a href="nn_shutdown.3compat.html">nn_shutdown()</a>`</code> to
+&#8220;unbind&#8221; the socket from the address at <em>url</em>.</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">
+<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>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_close.3compat.html b/man/tip/nn_close.3compat.html
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+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_close(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_close - close socket (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">int</span> <span class="tok-nf">nn_close</span><span class="tok-p">(</span><span class="tok-kt">int</span> <span class="tok-n">sock</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_close()</code> function closes the socket <em>sock</em>.
+Any operations that are currently in progress will be terminated, and will
+fail with error <code>EBADF</code>.</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>
+</div>
+<div class="sect1">
+<h2 id="_return_values">RETURN VALUES</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>This function returns zero on success, and -1 on failure.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_errors">ERRORS</h2>
+<div class="sectionbody">
+<div class="hdlist">
+<table>
+<tr>
+<td class="hdlist1">
+<code>EBADF</code>
+</td>
+<td class="hdlist2">
+<p>The socket is not open.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ETERM</code>
+</td>
+<td class="hdlist2">
+<p>The library is shutting down.</p>
+</td>
+</tr>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nn_errno.3compat.html">nn_errno(3compat)</a>,
+<a href="nn_socket.3compat.html">nn_socket(3compat)</a>,
+<a href="nng_compat.3compat.html">nng_compat(3compat)</a>,
+<a href="nng.7.html">nng(7)</a></p>
+</div>
+</div>
+</div>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_cmsg.3compat.html b/man/tip/nn_cmsg.3compat.html
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+</head>
+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_cmsg(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_cmsg - message control data (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-k">struct</span> <span class="tok-n">nn_cmsghdr</span> <span class="tok-p">{</span>
+    <span class="tok-kt">size_t</span> <span class="tok-n">cmsg_len</span><span class="tok-p">;</span>
+    <span class="tok-kt">int</span>    <span class="tok-n">cmsg_level</span><span class="tok-p">;</span>
+    <span class="tok-kt">int</span>    <span class="tok-n">cmsg_type</span><span class="tok-p">;</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_cmsghdr</code> structure describes a block of control data that is
+associated with a message either sent by <code><a href="nn_sendmsg.3compat.html">nn_sendmsg()</a></code>
+or received by <code><a href="nn_recvmsg.3compat.html">nn_recvmsg()</a></code>.</p>
+</div>
+<div class="admonitionblock note">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-note" title="Note"></i>
+</td>
+<td class="content">
+This structure and supporting macros are 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="paragraph">
+<p>Each header is followed by <code>cmsg_len</code> bytes of data, plus any padding required
+to align the structure.</p>
+</div>
+<div class="paragraph">
+<p>The only defined ancillary data at this time is the protocol headers used by
+the protocols.
+This uses <code>cmsg_level</code> set to <code>PROTO_SP</code> and the <code>cmsg_type</code> set to
+<code>SP_HDR</code>.
+The actual data for this will vary from depending on the protocol used.</p>
+</div>
+<div class="paragraph">
+<p>Convenience macros are provided to make working with these fields easier.</p>
+</div>
+<div class="dlist">
+<dl>
+<dt class="hdlist1"><code>struct nn_cmsghdr *NN_CMSG_FIRSTHDR(struct nn_msghdr *<em>hdr</em>)</code></dt>
+<dd>
+<p>This macro returns the first <code>struct nn_cmsghdr</code> header in <em>hdr</em>.</p>
+</dd>
+<dt class="hdlist1"><code>struct nn_cmsghdr *NN_CMSG_NXTHDR(struct nn_msghdr *<em>hdr</em>, struct nn_cmsghdr *<em>ch</em>)</code></dt>
+<dd>
+<p>This macro returns a pointer to the next <code>struct nn_cmsghdr</code> in <em>hdr</em> after <em>ch</em>.</p>
+</dd>
+<dt class="hdlist1"><code>void *NN_CMSG_DATA(struct nn_cmsghdr *<em>ch</em>)</code></dt>
+<dd>
+<p>This macro returns a pointer to the header-specific data for <em>ch</em>.</p>
+</dd>
+<dt class="hdlist1"><code>size_t NN_CMSG_ALIGN(size_t <em>len</em>)</code></dt>
+<dd>
+<p>This macro returns the length specified by <em>len</em>, plus any padding required to
+provide the necessary alignment for another structure.</p>
+</dd>
+<dt class="hdlist1"><code>size_t NN_CMSG_SPACE(size_t <em>len</em>)</code></dt>
+<dd>
+<p>This macro returns the amount of space required for a header, with <em>len</em>
+bytes of following data, and any necessary padding.</p>
+</dd>
+<dt class="hdlist1"><code>size_t NN_CMSG_LEN(size_t <em>len</em>)</code></dt>
+<dd>
+<p>This macro evalutes to the length of the header (including alignment),
+and the associated data of length <em>len</em>, but without any trailing padding
+to align for another header.</p>
+</dd>
+</dl>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nn_recvmsg.3compat.html">nn_recvmsg(3compat)</a>,
+<a href="nn_sendmsg.3compat.html">nn_sendmsg(3compat)</a>,
+<a href="nng_compat.3compat.html">nng_compat(3compat)</a>,
+<a href="nng.7.html">nng(7)</a></p>
+</div>
+</div>
+</div>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_connect.3compat.html b/man/tip/nn_connect.3compat.html
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+</head>
+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_connect(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_connect - connect to remote peer (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">int</span> <span class="tok-n">nn_connect</span><span class="tok-p">(</span><span class="tok-kt">int</span> <span class="tok-n">sock</span><span class="tok-p">,</span> <span class="tok-k">const</span> <span class="tok-kt">char</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_connect()</code> function arranges for the socket <em>sock</em> to
+inititate connection to a peer at the address specified by <em>url</em>.
+An &#8220;endpoint identifier&#8221; for this socket&#8217;s association with the <em>url</em> is
+returned to the caller on success.
+This ID can be used with <code><a href="nn_shutdown.3compat.html">nn_shutdown()</a>`</code> to
+&#8220;unbind&#8221; the socket from the address at <em>url</em>.</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 connect 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 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>ECONNREFUSED</code>
+</td>
+<td class="hdlist2">
+<p>The connection attempt was refused.</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">
+<p><a href="nn_bind.3compat.html">nn_bind(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>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_device.3compat.html b/man/tip/nn_device.3compat.html
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+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_device(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_device - create forwarding device (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">int</span> <span class="tok-nf">nn_device</span><span class="tok-p">(</span><span class="tok-kt">int</span> <span class="tok-n">sock1</span><span class="tok-p">,</span> <span class="tok-kt">int</span> <span class="tok-n">sock2</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_device()</code> function is used to create a forwarder, where messages
+received on one of the two sockets <em>sock1</em> and <em>sock2</em> are forwarded to
+the other.</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="paragraph">
+<p>The two sockets must be compatible, and must be <a href="nng.7.html#raw_mode">raw mode</a>
+sockets.
+More detail about devices and how they can be used is available in the
+new style <a href="nng_device.3.html">nng_device()</a> documentation.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_return_values">RETURN VALUES</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>This function blocks forever, and will return -1 only when
+one of the sockets is closed or an error occurs.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_errors">ERRORS</h2>
+<div class="sectionbody">
+<div class="dlist horizonal">
+<dl>
+<dt><code>EBADF</code></dt>
+<dd>
+<p>One of the two sockets is invalid or not open, or has</p>
+</dd>
+<dt><code>EINVAL</code></dt>
+<dd>
+<p>The sockets are not compatible with each other, or not both raw.</p>
+</dd>
+<dt><code>ENOMEM</code></dt>
+<dd>
+<p>Insufficient memory is available.</p>
+</dd>
+</dl>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nn_errno.3compat.html">nn_errno(3compat)</a>,
+<a href="nn_socket.3compat.html">nn_socket(3compat)</a>,
+<a href="nng_compat.3compat.html">nng_compat(3compat)</a>,
+<a href="nng.7.html">nng(7)</a></p>
+</div>
+</div>
+</div>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_errno.3compat.html b/man/tip/nn_errno.3compat.html
new file mode 100644
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+</style>
+</head>
+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_errno(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_errno - return most recent error (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">int</span> <span class="tok-nf">nn_errno</span><span class="tok-p">(</span><span class="tok-kt">void</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_errno()</code> function returns the error number corresponding to the
+most recent failed operation by the calling thread.</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 important">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-important" title="Important"></i>
+</td>
+<td class="content">
+The error numbers returned from this function may include
+errors caused by system functions, which overlap the usual <code>errno</code> variable,
+and this function simply returns the value of <code>errno</code>.
+However, the values returned may include numeric values that are not
+defined by the system, but are unique to <em>libnanomsg</em>, such as <code>EFSM</code>.
+</td>
+</tr>
+</table>
+</div>
+<div class="paragraph">
+<p>This library implements the following error numbers, in addition to any others
+that might be set for <code>errno</code> by the underlying system:</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_return_values">RETURN VALUES</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>This function returns the value of <code>errno</code>.
+If no operation has failed, then this will be zero.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_errors">ERRORS</h2>
+<div class="sectionbody">
+<div class="hdlist">
+<table>
+<tr>
+<td class="hdlist1">
+<code>EINTR</code>
+</td>
+<td class="hdlist2">
+<p>Operation interrupted.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ENOMEM</code>
+</td>
+<td class="hdlist2">
+<p>Insufficient memory.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EINVAL</code>
+</td>
+<td class="hdlist2">
+<p>Invalid argument.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EBUSY</code>
+</td>
+<td class="hdlist2">
+<p>Resource is busy.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ETIMEDOUT</code>
+</td>
+<td class="hdlist2">
+<p>Operation timed out.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ECONNREFUSED</code>
+</td>
+<td class="hdlist2">
+<p>Connection refused by peer.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EBADF</code>
+</td>
+<td class="hdlist2">
+<p>Invalid or closed socket.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EAGAIN</code>
+</td>
+<td class="hdlist2">
+<p>Operation would block.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ENOTSUP</code>
+</td>
+<td class="hdlist2">
+<p>Protocol or option not supported.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EADDRINUSE</code>
+</td>
+<td class="hdlist2">
+<p>Requested address is already in use.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EFSM</code>
+</td>
+<td class="hdlist2">
+<p>Protocol state incorrect.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EPROTO</code>
+</td>
+<td class="hdlist2">
+<p>Protocol error.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EHOSTUNREACH</code>
+</td>
+<td class="hdlist2">
+<p>Remote peer is unreachable.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EADDRNOTAVAIL</code>
+</td>
+<td class="hdlist2">
+<p>Requested address is not available.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EACCES</code>
+</td>
+<td class="hdlist2">
+<p>Permission denied.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EMSGSIZE</code>
+</td>
+<td class="hdlist2">
+<p>Message is too large.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ECONNABORTED</code>
+</td>
+<td class="hdlist2">
+<p>Connection attempt aborted.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ECONNRESET</code>
+</td>
+<td class="hdlist2">
+<p>Connection reset by peer.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EEXIST</code>
+</td>
+<td class="hdlist2">
+<p>Resource already exists.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EMFILE</code>
+</td>
+<td class="hdlist2">
+<p>Too many open files.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ENOSPC</code>
+</td>
+<td class="hdlist2">
+<p>Insufficient persistent storage.</p>
+</td>
+</tr>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nn_strerror.3compat.html">nn_strerror(3compat)</a>,
+<a href="nng_compat.3compat.html">nng_compat(3compat)</a>,
+<a href="nng.7.html">nng(7)</a></p>
+</div>
+</div>
+</div>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_freemsg.3compat.html b/man/tip/nn_freemsg.3compat.html
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+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_freemsg(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_freemsg - free message (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">int</span> <span class="tok-nf">nn_freemsg</span><span class="tok-p">(</span><span class="tok-kt">void</span> <span class="tok-o">*</span><span class="tok-n">msg</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_freemsg()</code> deallocates a message previously allocated with
+<code><a href="nn_allocmsg.3compat.html">nn_allocmsg()</a>`</code> or similar functions.</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>
+</div>
+<div class="sect1">
+<h2 id="_return_values">RETURN VALUES</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>This function always returns 0.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_errors">ERRORS</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>None.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nn_allocmsg.3compat.html">nn_allocmsg(3compat)</a>,
+<a href="#">nn_freemsg(3compat)</a>,
+<a href="nn_errno.3compat.html">nn_errno(3compat)</a>,
+<a href="nng_compat.3compat.html">nng_compat(3compat)</a>,
+<a href="nng.7.html">nng(7)</a></p>
+</div>
+</div>
+</div>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_get_statistic.3compat.html b/man/tip/nn_get_statistic.3compat.html
new file mode 100644
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+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_get_statistic(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_get_statistic - get statistic (stub)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">uint64_t</span> <span class="tok-nf">nn_get_statistic</span><span class="tok-p">(</span><span class="tok-kt">int</span> <span class="tok-n">sock</span><span class="tok-p">,</span> <span class="tok-kt">int</span> <span class="tok-n">stat</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_get_statistic()</code> function exists only as a stub, and always returns
+zero.</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>
+</div>
+<div class="sect1">
+<h2 id="_return_values">RETURN VALUES</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>Zero.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_errors">ERRORS</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>None.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nng_compat.3compat.html">nng_compat(3compat)</a>,
+<a href="nng.7.html">nng(7)</a></p>
+</div>
+</div>
+</div>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_getsockopt.3compat.html b/man/tip/nn_getsockopt.3compat.html
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+</head>
+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_getsockopt(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_getsockopt - get socket option (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">int</span> <span class="tok-nf">nn_getsockopt</span><span class="tok-p">(</span><span class="tok-kt">int</span> <span class="tok-n">sock</span><span class="tok-p">,</span> <span class="tok-kt">int</span> <span class="tok-n">level</span><span class="tok-p">,</span> <span class="tok-kt">int</span> <span class="tok-n">option</span><span class="tok-p">,</span> <span class="tok-kt">void</span> <span class="tok-o">*</span><span class="tok-n">val</span><span class="tok-p">,</span> <span class="tok-kt">size_t</span> <span class="tok-o">*</span><span class="tok-n">szp</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_getsockopt()</code> function gets a socket option on socket <em>sock</em>.
+The option retrieved is determined by the <em>level</em> and <em>option</em>.</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="paragraph">
+<p>The value pointed to by <em>szp</em> must be initialized to the size of the buffer
+pointed to by <em>val</em>.
+No more than this many bytes of the option will be copied into the destination
+buffer on success.
+On success, the value pointed to by <em>szp</em> will be updated with the actual
+size of the option.</p>
+</div>
+<div class="admonitionblock tip">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-tip" title="Tip"></i>
+</td>
+<td class="content">
+To determine the size to receive an option, first call this function
+with <em>val</em> set to <code>NULL</code> and the value addressed by <em>szp</em> initialized to zero.
+</td>
+</tr>
+</table>
+</div>
+<div class="paragraph">
+<p>The <em>level</em> determines whether the option is a generic socket option,
+or is transport-specific.
+The values possible for level are as follows:</p>
+</div>
+<div class="hdlist">
+<table>
+<tr>
+<td class="hdlist1">
+<code>NN_SOL_SOCKET</code>
+</td>
+<td class="hdlist2">
+<p>Generic socket option</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>NN_IPC</code>
+</td>
+<td class="hdlist2">
+<p>Transport specific option for IPC.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>NN_TCP</code>
+</td>
+<td class="hdlist2">
+<p>Transport specific option for TCP.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>NN_WS</code>
+</td>
+<td class="hdlist2">
+<p>Transport specific option for WebSocket.</p>
+</td>
+</tr>
+</table>
+</div>
+<div class="paragraph">
+<p>The following generic socket options are possible (all are of type <code>int</code> and
+thus size 4, unless otherwise indicated.)</p>
+</div>
+<div class="dlist">
+<dl>
+<dt class="hdlist1"><code>NN_SNDBUF</code></dt>
+<dd>
+<p>Send buffer size in bytes.</p>
+</dd>
+</dl>
+</div>
+<div class="admonitionblock note">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-note" title="Note"></i>
+</td>
+<td class="content">
+In <em>nng</em> buffers are sized as a count of messages rather than
+bytes; accordingly this value is the <em>nng</em> queue depth multiplied by 1024
+(representing an estimate that the average message size is 1kB).
+Applications that have unusual message sizes may wish to adjust the value
+used here accordingly.
+</td>
+</tr>
+</table>
+</div>
+<div class="dlist">
+<dl>
+<dt class="hdlist1"><code>NN_RCVBUF</code></dt>
+<dd>
+<p>Receive buffer size in bytes.</p>
+</dd>
+</dl>
+</div>
+<div class="admonitionblock note">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-note" title="Note"></i>
+</td>
+<td class="content">
+The same caveats for <code>NN_SNDBUF</code> apply here as well.
+</td>
+</tr>
+</table>
+</div>
+<div class="dlist">
+<dl>
+<dt class="hdlist1"><code>NN_SNDTIMEO</code></dt>
+<dd>
+<p>Send time-out in milliseconds.
+Send operations will fail with <code>ETIMEDOUT</code> if no message can be received
+after this many milliseconds have transpired since the operation was started.
+A value of -1 means that no timeout is applied.</p>
+</dd>
+<dt class="hdlist1"><code>NN_RCVTIMEO</code></dt>
+<dd>
+<p>Receive time-out in milliseconds.
+Receive operations will fail with <code>ETIMEDOUT</code> if no message can be received
+after this many milliseconds have transpired since the operation was started.
+A value of -1 means that no timeout is applied.</p>
+</dd>
+<dt class="hdlist1"><code>NN_RCVMAXSIZE</code></dt>
+<dd>
+<p>Maximum receive size in bytes.
+The socket will discard messages larger than this on receive.
+The default, 1MB, is intended to prevent denial-of-service attacks.
+The value -1 removes any limit.</p>
+</dd>
+<dt class="hdlist1"><code>NN_RECONNECT_IVL</code></dt>
+<dd>
+<p>Reconnect interval in milliseconds.
+After an outgoing connection is closed or fails, the socket will
+automatically attempt to reconnect after this many milliseconds.
+This is the starting value for the time, and is used in the first
+reconnection attempt after a successful connection is made.
+The default is 100.</p>
+</dd>
+<dt class="hdlist1"><code>NN_RECONNECT_IVL_MAX</code></dt>
+<dd>
+<p>Maximum reconnect interval in milliseconds.
+Subsequent reconnection attempts after a failed attempt are made at
+exponentially increasing intervals (backoff), but the interval is
+capped by this value.
+If this value is smaller than <code>NN_RECONNECT_IVL</code>, then no exponential
+backoff is performed, and each reconnect interval will be determined
+solely by <code>NN_RECONNECT_IVL</code>.
+The default is zero.</p>
+</dd>
+<dt class="hdlist1"><code>NN_LINGER</code></dt>
+<dd>
+<p>This option is always zero and exists only for compatibility.</p>
+</dd>
+</dl>
+</div>
+<div class="admonitionblock note">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-note" title="Note"></i>
+</td>
+<td class="content">
+This option was unreliable in early releases of <em>libnanomsg</em>, and
+is unsupported in <em>nng</em> and recent <em>libnanomsg</em> releases.
+Applications needing assurance of message delivery should either include an
+explicit notification (automatic with the <code>NN_REQ</code> protocol) or allow
+sufficient time for the socket to drain before closing the socket or exiting.
+</td>
+</tr>
+</table>
+</div>
+<div class="dlist">
+<dl>
+<dt class="hdlist1"><code>NN_SNDPRIO</code></dt>
+<dd>
+<p>This option is not implemented at this time.</p>
+</dd>
+<dt class="hdlist1"><code>NN_RCVPRIO</code></dt>
+<dd>
+<p>This option is not implemented at this time.</p>
+</dd>
+<dt class="hdlist1"><code>NN_IPV4ONLY</code></dt>
+<dd>
+<p>This option is not implemented at this time.</p>
+</dd>
+<dt class="hdlist1"><code>NN_SOCKET_NAME</code></dt>
+<dd>
+<p>This option is a string, and represents the socket name.
+It can be changed to help with identifying different sockets with
+their different application-specific purposes.</p>
+</dd>
+<dt class="hdlist1"><code>NN_MAXTTL</code></dt>
+<dd>
+<p>Maximum &#8220;hops&#8221; through proxies and devices a message may go through.
+This value, if positive, provides some protection against forwarding loops in
+<a href="nng_device.3.html">device</a> chains.</p>
+</dd>
+</dl>
+</div>
+<div class="admonitionblock note">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-note" title="Note"></i>
+</td>
+<td class="content">
+Not all protocols offer this protection, so care should still be used
+in configuring device forwarding.
+</td>
+</tr>
+</table>
+</div>
+<div class="dlist">
+<dl>
+<dt class="hdlist1"><code>NN_DOMAIN</code></dt>
+<dd>
+<p>This contains either the value <code>AF_SP</code> or <code>AF_SP_RAW</code>, corresponding
+to the value that the socket was created with.</p>
+</dd>
+<dt class="hdlist1"><code>NN_PROTOCOL</code></dt>
+<dd>
+<p>This option is not supported at this time.</p>
+</dd>
+<dt class="hdlist1"><code>NN_RCVFD</code></dt>
+<dd>
+<p>This option returns a file descriptor suitable for use in with <code>poll()</code> or
+<code>select()</code> (or other system-specific polling functions).
+This descriptor will be readable when a message is available for receiving
+at the socket.</p>
+</dd>
+</dl>
+</div>
+<div class="admonitionblock note">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-note" title="Note"></i>
+</td>
+<td class="content">
+The file descriptor should not be read or written by the application,
+and is not the same as any underlying descriptor used for network sockets.
+</td>
+</tr>
+</table>
+</div>
+<div class="dlist">
+<dl>
+<dt class="hdlist1"><code>NN_RCVFD</code></dt>
+<dd>
+<p>This option returns a file descriptor suitable for use in with <code>poll()</code> or
+<code>select()</code> (or other system-specific polling functions).
+This descriptor will be readable when the socket is able to accept a message
+for sending.</p>
+</dd>
+</dl>
+</div>
+<div class="admonitionblock note">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-note" title="Note"></i>
+</td>
+<td class="content">
+The file descriptor should not be read or written by the application,
+and is not the same as any underlying descriptor used for network sockets.
+Furthermore, the file descriptor should only be polled for <em>readability</em>.
+</td>
+</tr>
+</table>
+</div>
+<div class="dlist">
+<dl>
+<dt class="hdlist1"><code>NN_REQ_RESEND_IVL</code></dt>
+<dd>
+<p>Request retry interval in milliseconds.
+If an <code>NN_REQ</code> socket does not receive a reply to a request within this
+period of time, the socket will automatically resend the request.
+The default value is 60000 (one minute).</p>
+</dd>
+<dt class="hdlist1"><code>NN_SURVEYOR_DEADLINE</code></dt>
+<dd>
+<p>Survey deadline in milliseconds for <code>NN_SURVEYOR</code> sockets.
+After sending a survey message, the socket will only accept responses
+from respondents for this long.
+Any responses arriving after this expires are silently discarded.</p>
+</dd>
+</dl>
+</div>
+<div class="paragraph">
+<p>In addition, the following transport specific options are offered:</p>
+</div>
+<div class="dlist">
+<dl>
+<dt class="hdlist1"><code>NN_IPC_SEC_ATTR</code></dt>
+<dd>
+<p>This <code>NN_IPC</code> option is not supported at this time.</p>
+</dd>
+<dt class="hdlist1"><code>NN_IPC_OUTBUFSZ</code></dt>
+<dd>
+<p>This <code>NN_IPC</code> option is not supported at this time.</p>
+</dd>
+<dt class="hdlist1"><code>NN_IPC_INBUFSZE</code></dt>
+<dd>
+<p>This <code>NN_IPC</code> option is not supported at this time.</p>
+</dd>
+<dt class="hdlist1"><code>NN_TCP_NODELAY</code></dt>
+<dd>
+<p>This <code>NN_TCP</code> option is not supported at this time.</p>
+</dd>
+<dt class="hdlist1"><code>NN_WS_MSG_TYPE</code></dt>
+<dd>
+<p>This <code>NN_WS</code> option is not supported, as <em>nng</em> only supports binary messages
+in this implementation.</p>
+</dd>
+</dl>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_return_values">RETURN VALUES</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>This function returns zero on success, and -1 on failure.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_errors">ERRORS</h2>
+<div class="sectionbody">
+<div class="hdlist">
+<table>
+<tr>
+<td class="hdlist1">
+<code>EBADF</code>
+</td>
+<td class="hdlist2">
+<p>The socket <em>sock</em> is not an open socket.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ENOMEM</code>
+</td>
+<td class="hdlist2">
+<p>Insufficient memory is available.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ENOPROTOOPT</code>
+</td>
+<td class="hdlist2">
+<p>The level and/or option is invalid.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EINVAL</code>
+</td>
+<td class="hdlist2">
+<p>The option, or the value passed, is invalid.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ETERM</code>
+</td>
+<td class="hdlist2">
+<p>The library is shutting down.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EACCES</code>
+</td>
+<td class="hdlist2">
+<p>The option cannot be changed.</p>
+</td>
+</tr>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nng_socket.5.html">nng_socket(5)</a>,
+<a href="nn_close.3compat.html">nn_close(3compat)</a>,
+<a href="nn_errno.3compat.html">nn_errno(3compat)</a>,
+<a href="#">nn_getsockopt(3compat)</a>,
+<a href="nng_compat.3compat.html">nng_compat(3compat)</a>,
+<a href="nng.7.html">nng(7)</a></p>
+</div>
+</div>
+</div>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_reallocmsg.3compat.html b/man/tip/nn_reallocmsg.3compat.html
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+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_reallocmsg(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_reallocmsg - reallocate message (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">void</span> <span class="tok-o">*</span><span class="tok-nf">nn_reallocmsg</span><span class="tok-p">(</span><span class="tok-kt">void</span> <span class="tok-o">*</span><span class="tok-n">old</span><span class="tok-p">,</span> <span class="tok-kt">size_t</span> <span class="tok-n">size</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_reallocmsg()</code> reallocates the message <em>old</em>, making it of size <em>size</em>.</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="paragraph">
+<p>On success, the contents of <em>old</em> are copied into the new message
+(truncating if appropriate), then <em>old</em> is deallocated, and a pointer
+to the new message payload is returned.</p>
+</div>
+<div class="paragraph">
+<p>On failure, the <em>old</em> message is unchanged, and the value <code>NULL</code> is returned
+to the caller.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_return_values">RETURN VALUES</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>This function returns a pointer to message buffer space, or <code>NULL</code>
+on failure.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_errors">ERRORS</h2>
+<div class="sectionbody">
+<div class="hdlist">
+<table>
+<tr>
+<td class="hdlist1">
+<code>ENOMEM</code>
+</td>
+<td class="hdlist2">
+<p>Insufficient memory is available.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EINVAL</code>
+</td>
+<td class="hdlist2">
+<p>An invalid <em>size</em> was specified.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ETERM</code>
+</td>
+<td class="hdlist2">
+<p>The library is shutting down.</p>
+</td>
+</tr>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nn_allocmsg.3compat.html">nn_allocmsg(3compat)</a>,
+<a href="nn_freemsg.3compat.html">nn_freemsg(3compat)</a>,
+<a href="nn_errno.3compat.html">nn_errno(3compat)</a>,
+<a href="nng_compat.3compat.html">nng_compat(3compat)</a>,
+<a href="nng.7.html">nng(7)</a></p>
+</div>
+</div>
+</div>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_recv.3compat.html b/man/tip/nn_recv.3compat.html
new file mode 100644
index 00000000..57558c4e
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+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_recv(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_send - receive data (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">int</span> <span class="tok-n">nn_recv</span><span class="tok-p">(</span><span class="tok-kt">int</span> <span class="tok-n">sock</span><span class="tok-p">,</span> <span class="tok-kt">void</span> <span class="tok-o">*</span><span class="tok-n">data</span><span class="tok-p">,</span> <span class="tok-kt">size_t</span> <span class="tok-n">size</span><span class="tok-p">,</span> <span class="tok-kt">int</span> <span class="tok-n">flags</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_recv()</code> function receives a message from the socket <em>sock</em>.
+The message body must fit within <em>size</em> bytes, and will be stored
+at the location specified by <em>data</em>, unless <em>size</em> is the
+special value <code>NN_MSG</code>, indicating a zero-copy operation.</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="paragraph">
+<p>If <em>size</em> has the special value <code>NN_MSG</code>, then a zero-copy operation
+is performed.
+In this case, instead of copying the message data into the address
+specified by <em>data</em>, a new message large enough to hold the message data
+will be allocated (as if by the
+function <code><a href="nn_allocmsg.3compat.html">nn_allocmsg()</a></code>), and the message
+payload will be stored accordingly.
+In this case, the value stored at <em>data</em> will not be message data,
+but a pointer to the message itself.
+In this case, on success, the caller shall take responsibility for
+the final disposition of the message (such as by sending it to
+another peer using <code><a href="nn_send.3compat.html">nn_send()</a></code>) or
+<code><a href="nn_freemsg.3compat.html">nn_freemsg()</a></code>.</p>
+</div>
+<div class="paragraph">
+<p>The <em>flags</em> field may contain the special flag <code>NN_DONTWAIT</code>.
+In this case, if the no message is available for immediate receipt,
+the operation shall not block, but instead will fail with the error <code>EAGAIN</code>.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_return_values">RETURN VALUES</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>This function returns the number of bytes sent 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>EAGAIN</code>
+</td>
+<td class="hdlist2">
+<p>The operation would block.</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>EFSM</code>
+</td>
+<td class="hdlist2">
+<p>The socket cannot receive in this state.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ENOTSUP</code>
+</td>
+<td class="hdlist2">
+<p>This protocol cannot receive.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ETIMEDOUT</code>
+</td>
+<td class="hdlist2">
+<p>Operation timed out.</p>
+</td>
+</tr>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nn_errno.3compat.html">nn_errno(3compat)</a>,
+<a href="nn_recvmsg.3compat.html">nn_recvmsg(3compat)</a>,
+<a href="nn_send.3compat.html">nn_send(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>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_recvmsg.3compat.html b/man/tip/nn_recvmsg.3compat.html
new file mode 100644
index 00000000..e241bdf7
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+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_recvmsg(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_recvmsg - receive message (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">int</span> <span class="tok-nf">nn_recvmsg</span><span class="tok-p">(</span><span class="tok-kt">int</span> <span class="tok-n">sock</span><span class="tok-p">,</span> <span class="tok-k">struct</span> <span class="tok-n">nn_msghdr</span> <span class="tok-o">*</span><span class="tok-n">hdr</span><span class="tok-p">,</span> <span class="tok-kt">int</span> <span class="tok-n">flags</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_recvmsg()</code> function receives a message into the heade described by
+<em>hdr</em> using the socket <em>sock</em>.</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="paragraph">
+<p>The <em>flags</em> field may contain the special flag <code>NN_DONTWAIT</code>.
+In this case, if no message is ready for receiving on <em>sock</em>,
+the operation shall not block, but instead will fail with the error <code>EAGAIN</code>.</p>
+</div>
+<div class="paragraph">
+<p>The <em>hdr</em> points to a structure of type <code>struct nn_msghdr</code>, which has the
+following definition:</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre class="pygments highlight"><code data-lang="c"><span></span><span class="tok-k">struct</span> <span class="tok-n">nn_iovec</span> <span class="tok-p">{</span>
+    <span class="tok-kt">void</span> <span class="tok-o">*</span> <span class="tok-n">iov_base</span><span class="tok-p">;</span>
+    <span class="tok-kt">size_t</span> <span class="tok-n">iov_len</span><span class="tok-p">;</span>
+<span class="tok-p">};</span>
+
+<span class="tok-k">struct</span> <span class="tok-n">nn_msghdr</span> <span class="tok-p">{</span>
+    <span class="tok-k">struct</span> <span class="tok-n">nn_iovec</span> <span class="tok-o">*</span><span class="tok-n">msg_iov</span><span class="tok-p">;</span>
+    <span class="tok-kt">int</span>              <span class="tok-n">msg_iovlen</span><span class="tok-p">;</span>
+    <span class="tok-kt">void</span> <span class="tok-o">*</span>           <span class="tok-n">msg_control</span><span class="tok-p">;</span>
+    <span class="tok-kt">size_t</span>           <span class="tok-n">msg_controllen</span><span class="tok-p">;</span>
+<span class="tok-p">};</span></code></pre>
+</div>
+</div>
+<div class="paragraph">
+<p>The <code>msg_iov</code> is an array of scatter items, permitting the message
+to be spread into different memory blocks.
+There are <code>msg_iovlen</code> elements in this array, each of which
+has the base address (<code>iov_base</code>) and length (<code>iov_len</code>) indicated.</p>
+</div>
+<div class="paragraph">
+<p>The last member of this array may have the <code>iov_len</code> field set to <code>NN_MSG</code>,
+in which case the function shall allocate a message buffer, and store the
+pointer to it at the address indicated by <code>iov_base</code>.
+This can help save an extra copy operation.
+The buffer should be deallocated by <code><a href="nn_freemsg.3compat.html">nn_freemsg()</a></code>
+or similar when it is no longer needed.</p>
+</div>
+<div class="paragraph">
+<p>The values of <code>msg_control</code> and <code>msg_controllen</code> describe a buffer
+of ancillary data associated with the message.
+This is currenly only useful to obtain the message headers
+used with <a href="nng.7.html#raw_mode">raw mode</a> sockets.
+In all other circumstances these fields should be zero.
+Details about this structure are covered in
+<code><a href="nn_cmsg.3compat.html">nn_cmsg(3compat)</a></code>.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_return_values">RETURN VALUES</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>This function returns the number of bytes received 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>EAGAIN</code>
+</td>
+<td class="hdlist2">
+<p>The operation would block.</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>EFSM</code>
+</td>
+<td class="hdlist2">
+<p>The socket cannot receive in this state.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EINVAL</code>
+</td>
+<td class="hdlist2">
+<p>The <em>hdr</em> is invalid.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ENOTSUP</code>
+</td>
+<td class="hdlist2">
+<p>This protocol cannot receive.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ETIMEDOUT</code>
+</td>
+<td class="hdlist2">
+<p>Operation timed out.</p>
+</td>
+</tr>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nn_cmsg.3compat.html">nn_cmsg(3compat)</a>,
+<a href="nn_errno.3compat.html">nn_errno(3compat)</a>,
+<a href="nn_recv.3compat.html">nn_recv(3compat)</a>,
+<a href="nn_send.3compat.html">nn_send(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>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_send.3compat.html b/man/tip/nn_send.3compat.html
new file mode 100644
index 00000000..1531b6e5
--- /dev/null
+++ b/man/tip/nn_send.3compat.html
@@ -0,0 +1,661 @@
+---
+version: tip
+layout: refman
+---
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="UTF-8">
+<!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=edge"><![endif]-->
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
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+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_send(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_send - send data (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">int</span> <span class="tok-n">nn_send</span><span class="tok-p">(</span><span class="tok-kt">int</span> <span class="tok-n">sock</span><span class="tok-p">,</span> <span class="tok-k">const</span> <span class="tok-kt">void</span> <span class="tok-o">*</span><span class="tok-n">data</span><span class="tok-p">,</span> <span class="tok-kt">size_t</span> <span class="tok-n">size</span><span class="tok-p">,</span> <span class="tok-kt">int</span> <span class="tok-n">flags</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_send()</code> function creates a message containing <em>data</em> (of size <em>size</em>),
+and sends using the socket <em>sock</em>.</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="paragraph">
+<p>If <em>size</em> has the special value <code>NN_MSG</code>, then a zero-copy operation
+is performed.
+In this case, <em>data</em> points not to the message content itself, but instead
+is a pointer to the pointer, an extra level of pointer indirection.
+The message must have been previously allocated by
+<code><a href="nn_allocmsg.3compat.html">nn_allocmsg()</a></code> or
+<code><a href="nn_recvmsg.3compat.html">nn_recvmsg()</a></code>, using the same <code>NN_MSG</code> size.
+In this case, the &#8220;ownership`&#8221; of the message shall remain with
+the caller, unless the function returns 0, indicating that the
+function has taken responsibility for delivering or disposing of the
+message.</p>
+</div>
+<div class="paragraph">
+<p>The <em>flags</em> field may contain the special flag <code>NN_DONTWAIT</code>.
+In this case, if the socket is unable to accept more data for sending,
+the operation shall not block, but instead will fail with the error <code>EAGAIN</code>.</p>
+</div>
+<div class="admonitionblock note">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-note" title="Note"></i>
+</td>
+<td class="content">
+The send operation is performed asynchronously, and may not have
+completed before this function returns control to the caller.
+</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 the number of bytes sent 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>EAGAIN</code>
+</td>
+<td class="hdlist2">
+<p>The operation would block.</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>EFSM</code>
+</td>
+<td class="hdlist2">
+<p>The socket cannot send in this state.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ENOTSUP</code>
+</td>
+<td class="hdlist2">
+<p>This protocol cannot send.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ETIMEDOUT</code>
+</td>
+<td class="hdlist2">
+<p>Operation timed out.</p>
+</td>
+</tr>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nn_errno.3compat.html">nn_errno(3compat)</a>,
+<a href="nn_recv.3compat.html">nn_recv(3compat)</a>,
+<a href="nn_sendmsg.3compat.html">nn_sendmsg(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>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_sendmsg.3compat.html b/man/tip/nn_sendmsg.3compat.html
new file mode 100644
index 00000000..d35a9752
--- /dev/null
+++ b/man/tip/nn_sendmsg.3compat.html
@@ -0,0 +1,704 @@
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+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_sendmsg(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_sendmsg - send message (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">int</span> <span class="tok-nf">nn_sendmsg</span><span class="tok-p">(</span><span class="tok-kt">int</span> <span class="tok-n">sock</span><span class="tok-p">,</span> <span class="tok-k">const</span> <span class="tok-k">struct</span> <span class="tok-n">nn_msghdr</span> <span class="tok-o">*</span><span class="tok-n">hdr</span><span class="tok-p">,</span> <span class="tok-kt">int</span> <span class="tok-n">flags</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_sendmsg()</code> function sends the message described by <em>hdr</em> using the
+socket <em>sock</em>.</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="paragraph">
+<p>The <em>flags</em> field may contain the special flag <code>NN_DONTWAIT</code>.
+In this case, if the socket is unable to accept more data for sending,
+the operation shall not block, but instead will fail with the error <code>EAGAIN</code>.</p>
+</div>
+<div class="paragraph">
+<p>The <em>hdr</em> points to a structure of type <code>struct nn_msghdr</code>, which has the
+following definition:</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre class="pygments highlight"><code data-lang="c"><span></span><span class="tok-k">struct</span> <span class="tok-n">nn_iovec</span> <span class="tok-p">{</span>
+    <span class="tok-kt">void</span> <span class="tok-o">*</span> <span class="tok-n">iov_base</span><span class="tok-p">;</span>
+    <span class="tok-kt">size_t</span> <span class="tok-n">iov_len</span><span class="tok-p">;</span>
+<span class="tok-p">};</span>
+
+<span class="tok-k">struct</span> <span class="tok-n">nn_msghdr</span> <span class="tok-p">{</span>
+    <span class="tok-k">struct</span> <span class="tok-n">nn_iovec</span> <span class="tok-o">*</span><span class="tok-n">msg_iov</span><span class="tok-p">;</span>
+    <span class="tok-kt">int</span>              <span class="tok-n">msg_iovlen</span><span class="tok-p">;</span>
+    <span class="tok-kt">void</span> <span class="tok-o">*</span>           <span class="tok-n">msg_control</span><span class="tok-p">;</span>
+    <span class="tok-kt">size_t</span>           <span class="tok-n">msg_controllen</span><span class="tok-p">;</span>
+<span class="tok-p">};</span></code></pre>
+</div>
+</div>
+<div class="paragraph">
+<p>The <code>msg_iov</code> is an array of gather items, permitting the message
+to be spread into different memory blocks.
+There are <code>msg_iovlen</code> elements in this array, each of which
+has the base address (<code>iov_base</code>) and length (<code>iov_len</code>) indicated.</p>
+</div>
+<div class="paragraph">
+<p>For buffers allocated for zero copy
+(such as by <code><a href="nn_allocmsg.3compat.html">nn_allocmsg()</a></code>), the value
+of <code>iov_base</code> should be the address of the pointer to the buffer,
+rather than the address of the buffer itself.
+In this case, the value of <code>iov_len</code> should be <code>NN_MSG</code>,
+as the length is inferred from the allocated message.
+If the <code>msg_iovlen</code> field is <code>NN_MSG</code>, then this function will free
+the associated buffer after it is done with it, if it returns successfully.
+(If the function returns with an error, then the caller retains ownership
+of the associated buffer and may retry the operation or free the buffer
+at its choice.)</p>
+</div>
+<div class="paragraph">
+<p>The values of <code>msg_control</code> and <code>msg_controllen</code> describe a buffer
+of ancillary data to send the message.
+This is currenly only useful to provide the message headers
+used with <a href="nng.7.html#raw_mode">raw mode</a> sockets.
+In all other circumstances these fields should be zero.
+Details about this structure are covered in
+<code><a href="nn_cmsg.3compat.html">nn_cmsg(3compat)</a></code>.</p>
+</div>
+<div class="admonitionblock note">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-note" title="Note"></i>
+</td>
+<td class="content">
+The send operation is performed asynchronously, and may not have
+completed before this function returns control to the caller.
+</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 the number of bytes sent 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>EAGAIN</code>
+</td>
+<td class="hdlist2">
+<p>The operation would block.</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>EFSM</code>
+</td>
+<td class="hdlist2">
+<p>The socket cannot send in this state.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EINVAL</code>
+</td>
+<td class="hdlist2">
+<p>The <em>hdr</em> is invalid.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ENOTSUP</code>
+</td>
+<td class="hdlist2">
+<p>This protocol cannot send.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ETIMEDOUT</code>
+</td>
+<td class="hdlist2">
+<p>Operation timed out.</p>
+</td>
+</tr>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nn_cmsg.3compat.html">nn_cmsg(3compat)</a>,
+<a href="nn_errno.3compat.html">nn_errno(3compat)</a>,
+<a href="nn_recv.3compat.html">nn_recv(3compat)</a>,
+<a href="nn_send.3compat.html">nn_send(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>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_setsockopt.3compat.html b/man/tip/nn_setsockopt.3compat.html
new file mode 100644
index 00000000..9e7fa052
--- /dev/null
+++ b/man/tip/nn_setsockopt.3compat.html
@@ -0,0 +1,913 @@
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+<div id="header">
+<h1>nn_setsockopt(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_setsockopt - set socket option (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">int</span> <span class="tok-nf">nn_setsockopt</span><span class="tok-p">(</span><span class="tok-kt">int</span> <span class="tok-n">sock</span><span class="tok-p">,</span> <span class="tok-kt">int</span> <span class="tok-n">level</span><span class="tok-p">,</span> <span class="tok-kt">int</span> <span class="tok-n">option</span><span class="tok-p">,</span> <span class="tok-k">const</span> <span class="tok-kt">void</span> <span class="tok-o">*</span><span class="tok-n">val</span><span class="tok-p">,</span> <span class="tok-kt">size_t</span> <span class="tok-n">sz</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_setsockopt()</code> function sets a socket option on socket <em>sock</em>,
+affecting the behavior of the socket.
+The option set is determined by the <em>level</em> and <em>option</em>.
+The value of the option is set by <em>val</em>, and <em>sz</em>, which are pointers to
+the actual value and the size of the value, respectively.</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="paragraph">
+<p>The <em>level</em> determines whether the option is a generic socket option,
+or is transport-specific.
+The values possible for level are as follows:</p>
+</div>
+<div class="hdlist">
+<table>
+<tr>
+<td class="hdlist1">
+<code>NN_SOL_SOCKET</code>
+</td>
+<td class="hdlist2">
+<p>Generic socket option</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>NN_IPC</code>
+</td>
+<td class="hdlist2">
+<p>Transport specific option for IPC.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>NN_TCP</code>
+</td>
+<td class="hdlist2">
+<p>Transport specific option for TCP.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>NN_WS</code>
+</td>
+<td class="hdlist2">
+<p>Transport specific option for WebSocket.</p>
+</td>
+</tr>
+</table>
+</div>
+<div class="paragraph">
+<p>The following generic socket options are possible (all are of type <code>int</code> and
+thus size 4, unless otherwise indicated.)</p>
+</div>
+<div class="dlist">
+<dl>
+<dt class="hdlist1"><code>NN_SNDBUF</code></dt>
+<dd>
+<p>Send buffer size in bytes.</p>
+</dd>
+</dl>
+</div>
+<div class="admonitionblock note">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-note" title="Note"></i>
+</td>
+<td class="content">
+In <em>nng</em> buffers are sized as a count of messages rather than
+bytes, and so an attempt to estimate a conversion based upon a predetermined
+message size of 1kB is made.
+The value supplied is rouned up to the nearest value divisible by 1024, and
+then divided by 1024 to convert to a message count.
+Applications that have unusual message sizes may wish to adjust the value
+used here accordingly.
+</td>
+</tr>
+</table>
+</div>
+<div class="dlist">
+<dl>
+<dt class="hdlist1"><code>NN_RCVBUF</code></dt>
+<dd>
+<p>Receive buffer size in bytes.</p>
+</dd>
+</dl>
+</div>
+<div class="admonitionblock note">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-note" title="Note"></i>
+</td>
+<td class="content">
+The same caveats for <code>NN_SNDBUF</code> apply here as well.
+</td>
+</tr>
+</table>
+</div>
+<div class="dlist">
+<dl>
+<dt class="hdlist1"><code>NN_SNDTIMEO</code></dt>
+<dd>
+<p>Send time-out in milliseconds.
+Send operations will fail with <code>ETIMEDOUT</code> if no message can be received
+after this many milliseconds have transpired since the operation was started.
+A value of -1 means that no timeout is applied.</p>
+</dd>
+<dt class="hdlist1"><code>NN_RCVTIMEO</code></dt>
+<dd>
+<p>Receive time-out in milliseconds.
+Receive operations will fail with <code>ETIMEDOUT</code> if no message can be received
+after this many milliseconds have transpired since the operation was started.
+A value of -1 means that no timeout is applied.</p>
+</dd>
+<dt class="hdlist1"><code>NN_RCVMAXSIZE</code></dt>
+<dd>
+<p>Maximum receive size in bytes.
+The socket will discard messages larger than this on receive.
+The default, 1MB, is intended to prevent denial-of-service attacks.
+The value -1 removes any limit.</p>
+</dd>
+<dt class="hdlist1"><code>NN_RECONNECT_IVL</code></dt>
+<dd>
+<p>Reconnect interval in milliseconds.
+After an outgoing connection is closed or fails, the socket will
+automatically attempt to reconnect after this many milliseconds.
+This is the starting value for the time, and is used in the first
+reconnection attempt after a successful connection is made.
+The default is 100.</p>
+</dd>
+<dt class="hdlist1"><code>NN_RECONNECT_IVL_MAX</code></dt>
+<dd>
+<p>Maximum reconnect interval in milliseconds.
+Subsequent reconnection attempts after a failed attempt are made at
+exponentially increasing intervals (backoff), but the interval is
+capped by this value.
+If this value is smaller than <code>NN_RECONNECT_IVL</code>, then no exponential
+backoff is performed, and each reconnect interval will be determined
+solely by <code>NN_RECONNECT_IVL</code>.
+The default is zero.</p>
+</dd>
+<dt class="hdlist1"><code>NN_LINGER</code></dt>
+<dd>
+<p>This option is ignored, and exists only for compatibility.</p>
+</dd>
+</dl>
+</div>
+<div class="admonitionblock note">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-note" title="Note"></i>
+</td>
+<td class="content">
+This option was unreliable in early releases of <em>libnanomsg</em>, and
+is unsupported in <em>nng</em> and recent <em>libnanomsg</em> releases.
+Applications needing assurance of message delivery should either include an
+explicit notification (automatic with the <code>NN_REQ</code> protocol) or allow
+sufficient time for the socket to drain before closing the socket or exiting.
+</td>
+</tr>
+</table>
+</div>
+<div class="dlist">
+<dl>
+<dt class="hdlist1"><code>NN_SNDPRIO</code></dt>
+<dd>
+<p>This option is not implemented at this time.</p>
+</dd>
+<dt class="hdlist1"><code>NN_RCVPRIO</code></dt>
+<dd>
+<p>This option is not implemented at this time.</p>
+</dd>
+<dt class="hdlist1"><code>NN_IPV4ONLY</code></dt>
+<dd>
+<p>This option is not implemented at this time.</p>
+</dd>
+<dt class="hdlist1"><code>NN_SOCKET_NAME</code></dt>
+<dd>
+<p>This option is a string, and represents the socket name.
+It can be changed to help with identifying different sockets with
+their different application-specific purposes.</p>
+</dd>
+<dt class="hdlist1"><code>NN_MAXTTL</code></dt>
+<dd>
+<p>Maximum &#8220;hops&#8221; through proxies and devices a message may go through.
+This value, if positive, provides some protection against forwarding loops in
+<a href="nng_device.3.html">device</a> chains.</p>
+</dd>
+</dl>
+</div>
+<div class="admonitionblock note">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-note" title="Note"></i>
+</td>
+<td class="content">
+Not all protocols offer this protection, so care should still be used
+in configuring device forwarding.
+</td>
+</tr>
+</table>
+</div>
+<div class="dlist">
+<dl>
+<dt class="hdlist1"><code>NN_REQ_RESEND_IVL</code></dt>
+<dd>
+<p>Request retry interval in milliseconds.
+If an <code>NN_REQ</code> socket does not receive a reply to a request within this
+period of time, the socket will automatically resend the request.
+The default value is 60000 (one minute).</p>
+</dd>
+<dt class="hdlist1"><code>NN_SUB_SUBSCRIBE</code></dt>
+<dd>
+<p>Subscription topic, for <code>NN_SUB</code> sockets.
+This sets a subscription topic.
+When a message from a publisher arrives, it is compared against all
+subscriptions.
+If the first <em>sz</em> bytes of the message are not identical to <em>val</em>,
+then the message is silently discarded.</p>
+</dd>
+</dl>
+</div>
+<div class="admonitionblock tip">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-tip" title="Tip"></i>
+</td>
+<td class="content">
+To receive all messages, subscribe to an empty topic (<em>sz</em> equal to zero).
+</td>
+</tr>
+</table>
+</div>
+<div class="dlist">
+<dl>
+<dt class="hdlist1"><code>NN_SUB_UNSUBSCRIBE</code></dt>
+<dd>
+<p>Removes a subscription topic that was earlier established.</p>
+</dd>
+<dt class="hdlist1"><code>NN_SURVEYOR_DEADLINE</code></dt>
+<dd>
+<p>Survey deadline in milliseconds for <code>NN_SURVEYOR</code> sockets.
+After sending a survey message, the socket will only accept responses
+from respondents for this long.
+Any responses arriving after this expires are silently discarded.</p>
+</dd>
+</dl>
+</div>
+<div class="paragraph">
+<p>In addition, the following transport specific options are offered:</p>
+</div>
+<div class="dlist">
+<dl>
+<dt class="hdlist1"><code>NN_IPC_SEC_ATTR</code></dt>
+<dd>
+<p>This <code>NN_IPC</code> option is not supported at this time.</p>
+</dd>
+<dt class="hdlist1"><code>NN_IPC_OUTBUFSZ</code></dt>
+<dd>
+<p>This <code>NN_IPC</code> option is not supported at this time.</p>
+</dd>
+<dt class="hdlist1"><code>NN_IPC_INBUFSZE</code></dt>
+<dd>
+<p>This <code>NN_IPC</code> option is not supported at this time.</p>
+</dd>
+<dt class="hdlist1"><code>NN_TCP_NODELAY</code></dt>
+<dd>
+<p>This <code>NN_TCP</code> option is not supported at this time.</p>
+</dd>
+<dt class="hdlist1"><code>NN_WS_MSG_TYPE</code></dt>
+<dd>
+<p>This <code>NN_WS</code> option is not supported, as <em>nng</em> only supports binary messages
+in this implementation.</p>
+</dd>
+</dl>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_return_values">RETURN VALUES</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>This function returns zero on success, and -1 on failure.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_errors">ERRORS</h2>
+<div class="sectionbody">
+<div class="hdlist">
+<table>
+<tr>
+<td class="hdlist1">
+<code>EBADF</code>
+</td>
+<td class="hdlist2">
+<p>The socket <em>sock</em> is not an open socket.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ENOMEM</code>
+</td>
+<td class="hdlist2">
+<p>Insufficient memory is available.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ENOPROTOOPT</code>
+</td>
+<td class="hdlist2">
+<p>The level and/or option is invalid.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EINVAL</code>
+</td>
+<td class="hdlist2">
+<p>The option, or the value passed, is invalid.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ETERM</code>
+</td>
+<td class="hdlist2">
+<p>The library is shutting down.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>EACCES</code>
+</td>
+<td class="hdlist2">
+<p>The option cannot be changed.</p>
+</td>
+</tr>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nng_socket.5.html">nng_socket(5)</a>,
+<a href="nn_close.3compat.html">nn_close(3compat)</a>,
+<a href="nn_errno.3compat.html">nn_errno(3compat)</a>,
+<a href="nn_getsockopt.3compat.html">nn_getsockopt(3compat)</a>,
+<a href="nng_compat.3compat.html">nng_compat(3compat)</a>,
+<a href="nng.7.html">nng(7)</a></p>
+</div>
+</div>
+</div>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_shutdown.3compat.html b/man/tip/nn_shutdown.3compat.html
new file mode 100644
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+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_shutdown(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_shutdown - shut down endpoint (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">int</span> <span class="tok-n">nn_shutdown</span><span class="tok-p">(</span><span class="tok-kt">int</span> <span class="tok-n">sock</span><span class="tok-p">,</span> <span class="tok-kt">int</span> <span class="tok-n">ep</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_shutdown()</code> shuts down the &#8220;endpoint&#8221;  <em>ep</em> on the socket <em>sock</em>.
+This will stop the socket from either accepting new connections, or establishing
+old ones.
+Additionally, any established connections associated with <em>ep</em> will be
+closed.</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>
+</div>
+<div class="sect1">
+<h2 id="_return_values">RETURN VALUES</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>This function returns zero 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>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>ep</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">
+<p><a href="nn_bind.3compat.html">nn_bind(3compat)</a>,
+<a href="nn_connect.3compat.html">nn_connect(3compat)</a>,
+<a href="nn_errno.3compat.html">nn_errno(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>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_socket.3compat.html b/man/tip/nn_socket.3compat.html
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+</head>
+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_socket(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_socket - create socket (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">int</span> <span class="tok-nf">nn_socket</span><span class="tok-p">(</span><span class="tok-kt">int</span> <span class="tok-n">af</span><span class="tok-p">,</span> <span class="tok-kt">int</span> <span class="tok-n">proto</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_socket()</code> function creates socket using the address family <em>af</em> and
+protocol <em>proto</em> and returns it.</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 important">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-important" title="Important"></i>
+</td>
+<td class="content">
+Mixing the compatibility API and the modern API is not supported
+on a given socket.
+</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">
+Some protocols, transports, and features are only available in the modern API.
+</td>
+</tr>
+</table>
+</div>
+<div class="paragraph">
+<p>The address family <em>af</em> can be one of two values:</p>
+</div>
+<div class="hdlist">
+<table>
+<tr>
+<td class="hdlist1">
+<code>AF_SP</code>
+</td>
+<td class="hdlist2">
+<p>Normal socket.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>AF_SP_RAW</code>
+</td>
+<td class="hdlist2">
+<p><a href="nng.7.html#raw_mode">&#8220;Raw mode&#8221;</a> socket.</p>
+</td>
+</tr>
+</table>
+</div>
+<div class="paragraph">
+<p>The protocol indicates the protocol to be used when creating the socket.
+The following protocols are defined:</p>
+</div>
+<div class="hdlist">
+<table>
+<tr>
+<td class="hdlist1">
+<code>NN_PAIR</code>
+</td>
+<td class="hdlist2">
+<p><a href="nng_pair.7.html">Pair</a> protocol.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>NN_PUB</code>
+</td>
+<td class="hdlist2">
+<p><a href="nng_pub.7.html">Publisher</a> protocol.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>NN_SUB</code>
+</td>
+<td class="hdlist2">
+<p><a href="nng_sub.7.html">Subscriber</a> protocol.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>NN_REQ</code>
+</td>
+<td class="hdlist2">
+<p><a href="nng_req.7.html">Requestor</a> protocol.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>NN_REP</code>
+</td>
+<td class="hdlist2">
+<p><a href="nng_rep.7.html">Replier</a> protocol.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>NN_PUSH</code>
+</td>
+<td class="hdlist2">
+<p><a href="nng_push.7.html">Push</a> protocol.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>NN_PULL</code>
+</td>
+<td class="hdlist2">
+<p><a href="nng_pull.7.html">Pull</a> protocol.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>NN_SURVEYOR</code>
+</td>
+<td class="hdlist2">
+<p><a href="nng_surveyor.7.html">Surveyor</a> protocol.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>NN_RESPONDENT</code>
+</td>
+<td class="hdlist2">
+<p><a href="nng_respondent.7.html">Respondent</a> protocol.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>NN_BUS</code>
+</td>
+<td class="hdlist2">
+<p><a href="nng_bus.7.html">Bus</a> protocol.</p>
+</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 valid socket number on success, and -1 on failure.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_errors">ERRORS</h2>
+<div class="sectionbody">
+<div class="hdlist">
+<table>
+<tr>
+<td class="hdlist1">
+<code>ENOMEM</code>
+</td>
+<td class="hdlist2">
+<p>Insufficient memory is available.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ENOTSUP</code>
+</td>
+<td class="hdlist2">
+<p>The protocol is not supported.</p>
+</td>
+</tr>
+<tr>
+<td class="hdlist1">
+<code>ETERM</code>
+</td>
+<td class="hdlist2">
+<p>The library is shutting down.</p>
+</td>
+</tr>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nng_socket.5.html">nng_socket(5)</a>,
+<a href="nn_close.3compat.html">nn_close(3compat)</a>,
+<a href="nn_errno.3compat.html">nn_errno(3compat)</a>,
+<a href="nng_compat.3compat.html">nng_compat(3compat)</a>,
+<a href="nng.7.html">nng(7)</a></p>
+</div>
+</div>
+</div>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_strerror.3compat.html b/man/tip/nn_strerror.3compat.html
new file mode 100644
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+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_errno(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_strerror - return message for error (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-k">const</span> <span class="tok-kt">char</span> <span class="tok-o">*</span><span class="tok-nf">nn_strerror</span><span class="tok-p">(</span><span class="tok-kt">int</span> <span class="tok-n">err</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_strerror()</code> function returns a human readable message corresponding
+to the given error number <em>err</em>.</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>
+</div>
+<div class="sect1">
+<h2 id="_return_values">RETURN VALUES</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>This function returns the message corresponding to <em>err</em>.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_errors">ERRORS</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>None.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nn_errno.3compat.html">nn_errno(3compat)</a>,
+<a href="nng_compat.3compat.html">nng_compat(3compat)</a>,
+<a href="nng.7.html">nng(7)</a></p>
+</div>
+</div>
+</div>
+</div>
+</body>
+</html>
diff --git a/man/tip/nn_term.3compat.html b/man/tip/nn_term.3compat.html
new file mode 100644
index 00000000..efeeb378
--- /dev/null
+++ b/man/tip/nn_term.3compat.html
@@ -0,0 +1,608 @@
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+<body class="manpage toc2 toc-left">
+<div id="header">
+<h1>nn_term(3compat) Manual Page</h1>
+<div id="toc" class="toc2">
+<div id="toctitle">Table of Contents</div>
+<ul class="sectlevel1">
+<li><a href="#_synopsis">SYNOPSIS</a></li>
+<li><a href="#_description">DESCRIPTION</a></li>
+<li><a href="#_return_values">RETURN VALUES</a></li>
+<li><a href="#_errors">ERRORS</a></li>
+<li><a href="#_see_also">SEE ALSO</a></li>
+</ul>
+</div>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nn_term - terminate library (compatible API)</p>
+</div>
+</div>
+<div id="content">
+<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-cpf">&lt;nanomsg/nn.h&gt;</span><span class="tok-cp"></span>
+
+<span class="tok-kt">void</span> <span class="tok-nf">nn_term</span><span class="tok-p">(</span><span class="tok-kt">void</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_term()</code> function closes any open sockets, and frees all resources
+allocated by the library.
+Any operations that are currently in progress will be terminated, and will
+fail with error <code>EBADF</code> or <code>ETERM</code>.</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 important">
+<table>
+<tr>
+<td class="icon">
+<i class="fa icon-important" title="Important"></i>
+</td>
+<td class="content">
+This function is not thread-safe, and is not suitable for use
+in library calls.
+The intended purpose of this is to clean up at application termination; for
+example by registering this function with <code>atexit()</code>.
+This can help prevent false leak reports caused when memory checkers notice
+global resources allocated by the library.
+Libraries should never use this function, but should explicitly close their
+own sockets directly.
+</td>
+</tr>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_return_values">RETURN VALUES</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>None.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_errors">ERRORS</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>None.</p>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_see_also">SEE ALSO</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><a href="nn_errno.3compat.html">nn_errno(3compat)</a>,
+<a href="nn_socket.3compat.html">nn_socket(3compat)</a>,
+<a href="nng_compat.3compat.html">nng_compat(3compat)</a>,
+<a href="nng.7.html">nng(7)</a></p>
+</div>
+</div>
+</div>
+</div>
+</body>
+</html>
diff --git a/man/tip/nng.7.html b/man/tip/nng.7.html
index c3685bac..e1bf7284 100644
--- a/man/tip/nng.7.html
+++ b/man/tip/nng.7.html
@@ -513,6 +513,7 @@ body.book #toc,body.book #preamble,body.book h1.sect0,body.book .sect1>h2{page-b
 <li><a href="#_transports">Transports</a></li>
 <li><a href="#_conceptual_overview">Conceptual Overview</a>
 <ul class="sectlevel2">
+<li><a href="#raw_mode">Raw Mode</a></li>
 <li><a href="#_urls">URLs</a></li>
 </ul>
 </li>
@@ -694,10 +695,8 @@ reconnecting.</p>
 all; the socket abstraction should provide all the functionality needed
 other than in a few specific circumstances.</p>
 </div>
-<div class="paragraph">
-<p><a id="raw_mode"></a>
-=== Raw Mode</p>
-</div>
+<div class="sect2">
+<h3 id="raw_mode">Raw Mode</h3>
 <div class="paragraph">
 <p>
 Most applications will use <em>nng</em> sockets in &#8220;cooked&#8221; mode.
@@ -707,7 +706,7 @@ match a reply to a request, and resend requests periodically if no reply
 was received.</p>
 </div>
 <div class="paragraph">
-<p>There are situations, such as with <a href="nng_device.7.html">proxies</a>,
+<p>There are situations, such as with <a href="nng_device.3.html">proxies</a>,
 where it is desirable to bypass these semantics and simply pass messages
 to and from the socket with no extra semantic handling.
 This is possible using &#8220;raw&#8221; mode sockets.</p>
@@ -734,6 +733,7 @@ processing is needed.
 </tr>
 </table>
 </div>
+</div>
 <div class="sect2">
 <h3 id="_urls">URLs</h3>
 <div class="paragraph">
diff --git a/man/tip/nng_compat.3compat.html b/man/tip/nng_compat.3compat.html
index b190af00..b61a8917 100644
--- a/man/tip/nng_compat.3compat.html
+++ b/man/tip/nng_compat.3compat.html
@@ -548,13 +548,13 @@ most <em>nanomsg</em> 1.0 applications.</p>
 <td class="content">
 This is intended to faciliate converting legacy applications to
 use the <em>nng</em> library.
-New applications shoud not use the newer <a href="nng.7.html"><em>nng</em></a> API instead.
+New applications should use the newer <a href="nng.7.html"><em>nng</em></a> API instead.
 </td>
 </tr>
 </table>
 </div>
 <div class="paragraph">
-<p>Applications making use of this compatibility layer take care
+<p>Applications making use of this compatibility layer must take care
 to link with <a href="libnng.3.html"><em>libnng</em></a> instead of <em>libnn</em>.</p>
 </div>
 <div class="admonitionblock note">
@@ -606,105 +606,166 @@ used in compilation.
 <div class="paragraph">
 <p>The following functions are provided:</p>
 </div>
-<table class="tableblock frame-all grid-all spread">
-<colgroup>
-<col style="width: 50%;">
-<col style="width: 50%;">
-</colgroup>
-<tbody>
-<tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_socket()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">create a socket</p></td>
-</tr>
+<div class="hdlist">
+<table>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_getsockopt()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">get socket option</p></td>
+<td class="hdlist1">
+<code><a href="nn_socket.3compat.html">nn_socket()</a></code>
+</td>
+<td class="hdlist2">
+<p>create socket</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_setsockopt()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">set socket option</p></td>
+<td class="hdlist1">
+<code><a href="nn_getsockopt.3compat.html">nn_getsockopt()</a></code>
+</td>
+<td class="hdlist2">
+<p>get socket option</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_bind()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">accept connections from remote peers</p></td>
+<td class="hdlist1">
+<code><a href="nn_setsockopt.3compat.html">nn_setsockopt()</a></code>
+</td>
+<td class="hdlist2">
+<p>set socket option</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_connect()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">connect to remote peer</p></td>
+<td class="hdlist1">
+<code><a href="nn_bind.3compat.html">nn_bind()</a></code>
+</td>
+<td class="hdlist2">
+<p>accept connections from remote peers</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_send()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">send data</p></td>
+<td class="hdlist1">
+<code><a href="nn_connect.3compat.html">nn_connect()</a></code>
+</td>
+<td class="hdlist2">
+<p>connect to remote peer</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_recv()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">receive data</p></td>
+<td class="hdlist1">
+<code><a href="nn_send.3compat.html">nn_send()</a></code>
+</td>
+<td class="hdlist2">
+<p>send data</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_shutdown()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">shut down endpoint</p></td>
+<td class="hdlist1">
+<code><a href="nn_recv.3compat.html">nn_recv()</a></code>
+</td>
+<td class="hdlist2">
+<p>receive data</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_close()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">close socket</p></td>
+<td class="hdlist1">
+<code><a href="nn_shutdown.3compat.html">nn_shutdown()</a></code>
+</td>
+<td class="hdlist2">
+<p>shut down endpoint</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_poll()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">poll sockets</p></td>
+<td class="hdlist1">
+<code><a href="nn_close.3compat.html">nn_close()</a></code>
+</td>
+<td class="hdlist2">
+<p>close socket</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_device()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">create forwarding device</p></td>
+<td class="hdlist1">
+<code><a href="nn_device.3compat.html">nn_device()</a></code>
+</td>
+<td class="hdlist2">
+<p>create forwarding device</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_recvmsg()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">receive message</p></td>
+<td class="hdlist1">
+<code><a href="nn_recvmsg.3compat.html">nn_recvmsg()</a></code>
+</td>
+<td class="hdlist2">
+<p>receive message</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_sendmsg()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">send message</p></td>
+<td class="hdlist1">
+<code><a href="nn_sendmsg.3compat.html">nn_sendmsg()</a></code>
+</td>
+<td class="hdlist2">
+<p>send message</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_get_statistic()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">get statistic (stub)</p></td>
+<td class="hdlist1">
+<code><a href="nn_cmsg.3compat.html">nn_cmsg()</a></code>
+</td>
+<td class="hdlist2">
+<p>message control data</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_allocmsg()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">allocate message</p></td>
+<td class="hdlist1">
+<code><a href="nn_get_statistic.3compat.html">nn_get_statistic()</a></code>
+</td>
+<td class="hdlist2">
+<p>get statistic (stub)</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_reallocmsg()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">reallocate message</p></td>
+<td class="hdlist1">
+<code><a href="nn_allocmsg.3compat.html">nn_allocmsg()</a></code>
+</td>
+<td class="hdlist2">
+<p>allocate message</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_freemsg()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">free message</p></td>
+<td class="hdlist1">
+<code><a href="nn_reallocmsg.3compat.html">nn_reallocmsg()</a></code>
+</td>
+<td class="hdlist2">
+<p>reallocate message</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_errno()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">return most recent error</p></td>
+<td class="hdlist1">
+<code><a href="nn_freemsg.3compat.html">nn_freemsg()</a></code>
+</td>
+<td class="hdlist2">
+<p>free message</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_strerror()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">return message for error</p></td>
+<td class="hdlist1">
+<code><a href="nn_errno.3compat.html">nn_errno()</a></code>
+</td>
+<td class="hdlist2">
+<p>return most recent error</p>
+</td>
 </tr>
 <tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock"><code>nn_term()</code></p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">terminate library</p></td>
+<td class="hdlist1">
+<code><a href="nn_strerror.3compat.html">nn_strerror()</a></code>
+</td>
+<td class="hdlist2">
+<p>return message for error</p>
+</td>
 </tr>
-</tbody>
-</table>
-<div class="admonitionblock note">
-<table>
 <tr>
-<td class="icon">
-<i class="fa icon-note" title="Note"></i>
+<td class="hdlist1">
+<code><a href="nn_term.3compat.html">nn_term()</a></code>
 </td>
-<td class="content">
-Documentation for the compatibility functions will be
-supplied here later.
-In the meantime it can be found online at the
-<a href="http://nanomsg.org">nanomsg site</a>.
+<td class="hdlist2">
+<p>terminate library</p>
 </td>
 </tr>
 </table>
@@ -752,10 +813,8 @@ the relevant support is added to <em>nng</em>.
 <i class="fa icon-note" title="Note"></i>
 </td>
 <td class="content">
-Statistics (<code>nn_get_statistic</code>) are unsupported.
-The plan is to support statistics in the native <em>nng</em> API, but
-we think there is no need for this in a compatibility layer.
-Hence, this function returns <code>ENOTSUP</code>.
+Access to statistics using this legacy API
+(<code><a href="nn_get_statistic.3compat.html">nn_get_statistic()</a></code>) is unsupported.
 </td>
 </tr>
 </table>
@@ -852,7 +911,8 @@ be used temporarily to facilitate transitioning code to the new APIs.
 <h2 id="_see_also">SEE ALSO</h2>
 <div class="sectionbody">
 <div class="paragraph">
-<p><a href="nng.7.html">nng(7)</a></p>
+<p><a href="libnng.3.html">libnng(3)</a>,
+<a href="nng.7.html">nng(7)</a></p>
 </div>
 </div>
 </div>
diff --git a/man/tip/nng_ctx.5.html b/man/tip/nng_ctx.5.html
index a218059e..e5d16bed 100644
--- a/man/tip/nng_ctx.5.html
+++ b/man/tip/nng_ctx.5.html
@@ -681,7 +681,7 @@ to the sender.</p>
 </div>
 <div class="paragraph">
 <p>Given the above fragment, the following example shows setting up the
-service.  It assumes that the <a href="nng_socket.7.html">socket</a> has already been
+service.  It assumes that the <a href="nng_socket.5.html">socket</a> has already been
 created and any transports set up as well with functions such as
 <a href="nng_dial.3.html"><code>nng_dial()</code></a>
 or <a href="nng_listen.3.html"><code>nng_listen()</code></a>.</p>
diff --git a/man/tip/nng_device.3.html b/man/tip/nng_device.3.html
index eb1b6c88..4097f033 100644
--- a/man/tip/nng_device.3.html
+++ b/man/tip/nng_device.3.html
@@ -660,7 +660,8 @@ the requestor, if reliable delivery is needed.
 <h2 id="_return_values">RETURN VALUES</h2>
 <div class="sectionbody">
 <div class="paragraph">
-<p>This function returns 0 on success, and non-zero otherwise.</p>
+<p>This function continues running, and only returns an appropriate error when
+one occurs, or if one of the sockets is closed.</p>
 </div>
 </div>
 </div>