Adding upstream version 1:9.11.5.P4+dfsg.upstream/1%9.11.5.P4+dfsg upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-05-05 18:37:14 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-05-05 18:37:14 +0000
commit: ea648e70a989cca190cd7403fe892fd2dcc290b4 (patch)
tree: e2b6b1c647da68b0d4d66082835e256eb30970e8 /lib/lwres/man/lwres_gnba.html
parent: Initial commit. (diff)
download: bind9-ea648e70a989cca190cd7403fe892fd2dcc290b4.tar.xz
bind9-ea648e70a989cca190cd7403fe892fd2dcc290b4.zip
1 files changed, 304 insertions, 0 deletions
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<!--
+ - Copyright (C) 2000, 2001, 2004, 2005, 2007, 2014-2016, 2018, 2019 Internet Systems Consortium, Inc. ("ISC")
+ - 
+ - This Source Code Form is subject to the terms of the Mozilla Public
+ - License, v. 2.0. If a copy of the MPL was not distributed with this
+ - file, You can obtain one at http://mozilla.org/MPL/2.0/.
+-->
+<html lang="en">
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
+<title>lwres_gnba</title>
+<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
+</head>
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry">
+<a name="id-1"></a><div class="titlepage"></div>
+  
+  
+
+  
+
+  
+
+  <div class="refnamediv">
+<h2>Name</h2>
+<p>
+    lwres_gnbarequest_render, 
+    lwres_gnbaresponse_render, 
+    lwres_gnbarequest_parse, 
+    lwres_gnbaresponse_parse, 
+    lwres_gnbaresponse_free, 
+    lwres_gnbarequest_free
+     &#8212; lightweight resolver getnamebyaddress message handling
+  </p>
+</div>
+
+  <div class="refsynopsisdiv">
+<h2>Synopsis</h2>
+
+    <div class="funcsynopsis">
+<pre class="funcsynopsisinfo">
+#include &lt;lwres/lwres.h&gt;
+</pre>
+
+<table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;">
+<tr>
+<td><code class="funcdef">
+lwres_result_t
+<b class="fsfunc">lwres_gnbarequest_render</b>
+(</code></td>
+<td>lwres_context_t *<var class="pdparam">ctx</var>, </td>
+</tr>
+<tr>
+<td> </td>
+<td>lwres_gnbarequest_t *<var class="pdparam">req</var>, </td>
+</tr>
+<tr>
+<td> </td>
+<td>lwres_lwpacket_t *<var class="pdparam">pkt</var>, </td>
+</tr>
+<tr>
+<td> </td>
+<td>lwres_buffer_t *<var class="pdparam">b</var><code>)</code>;</td>
+</tr>
+</table>
+<div class="funcprototype-spacer"> </div>
+
+<table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;">
+<tr>
+<td><code class="funcdef">
+lwres_result_t
+<b class="fsfunc">lwres_gnbaresponse_render</b>
+(</code></td>
+<td>lwres_context_t *<var class="pdparam">ctx</var>, </td>
+</tr>
+<tr>
+<td> </td>
+<td>lwres_gnbaresponse_t *<var class="pdparam">req</var>, </td>
+</tr>
+<tr>
+<td> </td>
+<td>lwres_lwpacket_t *<var class="pdparam">pkt</var>, </td>
+</tr>
+<tr>
+<td> </td>
+<td>lwres_buffer_t *<var class="pdparam">b</var><code>)</code>;</td>
+</tr>
+</table>
+<div class="funcprototype-spacer"> </div>
+<table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;">
+<tr>
+<td><code class="funcdef">
+lwres_result_t
+<b class="fsfunc">lwres_gnbarequest_parse</b>(</code></td>
+<td>lwres_context_t *<var class="pdparam">ctx</var>, </td>
+</tr>
+<tr>
+<td> </td>
+<td>lwres_buffer_t *<var class="pdparam">b</var>, </td>
+</tr>
+<tr>
+<td> </td>
+<td>lwres_lwpacket_t *<var class="pdparam">pkt</var>, </td>
+</tr>
+<tr>
+<td> </td>
+<td>lwres_gnbarequest_t **<var class="pdparam">structp</var><code>)</code>;</td>
+</tr>
+</table>
+<div class="funcprototype-spacer"> </div>
+<table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;">
+<tr>
+<td><code class="funcdef">
+lwres_result_t
+<b class="fsfunc">lwres_gnbaresponse_parse</b>(</code></td>
+<td>lwres_context_t *<var class="pdparam">ctx</var>, </td>
+</tr>
+<tr>
+<td> </td>
+<td>lwres_buffer_t *<var class="pdparam">b</var>, </td>
+</tr>
+<tr>
+<td> </td>
+<td>lwres_lwpacket_t *<var class="pdparam">pkt</var>, </td>
+</tr>
+<tr>
+<td> </td>
+<td>lwres_gnbaresponse_t **<var class="pdparam">structp</var><code>)</code>;</td>
+</tr>
+</table>
+<div class="funcprototype-spacer"> </div>
+
+<table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;">
+<tr>
+<td><code class="funcdef">
+void
+<b class="fsfunc">lwres_gnbaresponse_free</b>
+(</code></td>
+<td>lwres_context_t *<var class="pdparam">ctx</var>, </td>
+</tr>
+<tr>
+<td> </td>
+<td>lwres_gnbaresponse_t **<var class="pdparam">structp</var><code>)</code>;</td>
+</tr>
+</table>
+<div class="funcprototype-spacer"> </div>
+<table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;">
+<tr>
+<td><code class="funcdef">
+void
+<b class="fsfunc">lwres_gnbarequest_free</b>(</code></td>
+<td>lwres_context_t *<var class="pdparam">ctx</var>, </td>
+</tr>
+<tr>
+<td> </td>
+<td>lwres_gnbarequest_t **<var class="pdparam">structp</var><code>)</code>;</td>
+</tr>
+</table>
+<div class="funcprototype-spacer"> </div>
+</div>
+
+  </div>
+
+  <div class="refsection">
+<a name="id-1.7"></a><h2>DESCRIPTION</h2>
+
+    <p>
+      These are low-level routines for creating and parsing
+      lightweight resolver address-to-name lookup request and
+      response messages.
+    </p>
+    <p>
+      There are four main functions for the getnamebyaddr opcode.
+      One render function converts a getnamebyaddr request structure &#8212;
+      <span class="type">lwres_gnbarequest_t</span> &#8212;
+      to the lightweight resolver's canonical format.
+      It is complemented by a parse function that converts a packet in this
+      canonical format to a getnamebyaddr request structure.
+      Another render function converts the getnamebyaddr response structure
+      &#8212;
+      <span class="type">lwres_gnbaresponse_t</span>
+      to the canonical format.
+      This is complemented by a parse function which converts a packet in
+      canonical format to a getnamebyaddr response structure.
+    </p>
+    <p>
+      These structures are defined in
+      <code class="filename">lwres/lwres.h</code>.
+      They are shown below.
+    </p>
+    <pre class="programlisting">
+#define LWRES_OPCODE_GETNAMEBYADDR      0x00010002U
+</pre>
+<p>
+    </p>
+    <pre class="programlisting">
+typedef struct {
+        uint32_t  flags;
+        lwres_addr_t    addr;
+} lwres_gnbarequest_t;
+</pre>
+<p>
+    </p>
+    <pre class="programlisting">
+typedef struct {
+        uint32_t  flags;
+        uint16_t  naliases;
+        char           *realname;
+        char          **aliases;
+        uint16_t  realnamelen;
+        uint16_t *aliaslen;
+        void           *base;
+        size_t          baselen;
+} lwres_gnbaresponse_t;
+</pre>
+<p>
+    </p>
+
+    <p><code class="function">lwres_gnbarequest_render()</code>
+      uses resolver context <code class="varname">ctx</code> to convert
+      getnamebyaddr request structure <code class="varname">req</code> to
+      canonical format.  The packet header structure
+      <code class="varname">pkt</code> is initialised and transferred to buffer
+      <code class="varname">b</code>.  The contents of <code class="varname">*req</code>
+      are then appended to the buffer in canonical format.
+      <code class="function">lwres_gnbaresponse_render()</code> performs the
+      same task, except it converts a getnamebyaddr response structure
+      <span class="type">lwres_gnbaresponse_t</span> to the lightweight resolver's
+      canonical format.
+    </p>
+
+    <p><code class="function">lwres_gnbarequest_parse()</code>
+      uses context <code class="varname">ctx</code> to convert the contents of
+      packet <code class="varname">pkt</code> to a
+      <span class="type">lwres_gnbarequest_t</span> structure.  Buffer
+      <code class="varname">b</code> provides space to be used for storing this
+      structure.  When the function succeeds, the resulting
+      <span class="type">lwres_gnbarequest_t</span> is made available through
+      <code class="varname">*structp</code>.
+      <code class="function">lwres_gnbaresponse_parse()</code> offers the same
+      semantics as <code class="function">lwres_gnbarequest_parse()</code>
+      except it yields a <span class="type">lwres_gnbaresponse_t</span> structure.
+    </p>
+
+    <p><code class="function">lwres_gnbaresponse_free()</code>
+      and <code class="function">lwres_gnbarequest_free()</code> release the
+      memory in resolver context <code class="varname">ctx</code> that was
+      allocated to the <span class="type">lwres_gnbaresponse_t</span> or
+      <span class="type">lwres_gnbarequest_t</span> structures referenced via
+      <code class="varname">structp</code>.  Any memory associated with
+      ancillary buffers and strings for those structures is also
+      discarded.
+    </p>
+  </div>
+
+  <div class="refsection">
+<a name="id-1.8"></a><h2>RETURN VALUES</h2>
+
+    <p>
+      The getnamebyaddr opcode functions
+      <code class="function">lwres_gnbarequest_render()</code>,
+      <code class="function">lwres_gnbaresponse_render()</code>
+      <code class="function">lwres_gnbarequest_parse()</code>
+      and
+      <code class="function">lwres_gnbaresponse_parse()</code>
+      all return
+      <span class="errorcode">LWRES_R_SUCCESS</span>
+      on success.
+      They return
+      <span class="errorcode">LWRES_R_NOMEMORY</span>
+      if memory allocation fails.
+      <span class="errorcode">LWRES_R_UNEXPECTEDEND</span>
+      is returned if the available space in the buffer
+      <code class="varname">b</code>
+      is too small to accommodate the packet header or the
+      <span class="type">lwres_gnbarequest_t</span>
+      and
+      <span class="type">lwres_gnbaresponse_t</span>
+      structures.
+      <code class="function">lwres_gnbarequest_parse()</code>
+      and
+      <code class="function">lwres_gnbaresponse_parse()</code>
+      will return
+      <span class="errorcode">LWRES_R_UNEXPECTEDEND</span>
+      if the buffer is not empty after decoding the received packet.
+      These functions will return
+      <span class="errorcode">LWRES_R_FAILURE</span>
+      if
+      <code class="varname">pktflags</code>
+      in the packet header structure
+      <span class="type">lwres_lwpacket_t</span>
+      indicate that the packet is not a response to an earlier query.
+    </p>
+  </div>
+  <div class="refsection">
+<a name="id-1.9"></a><h2>SEE ALSO</h2>
+
+    <p><span class="citerefentry">
+        <span class="refentrytitle">lwres_packet</span>(3)
+      </span>.
+    </p>
+  </div>
+</div></body>
+</html>
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-05-05 18:37:14 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-05-05 18:37:14 +0000
commit	ea648e70a989cca190cd7403fe892fd2dcc290b4 (patch)
tree	e2b6b1c647da68b0d4d66082835e256eb30970e8 /lib/lwres/man/lwres_gnba.html
parent	Initial commit. (diff)
download	bind9-ea648e70a989cca190cd7403fe892fd2dcc290b4.tar.xz bind9-ea648e70a989cca190cd7403fe892fd2dcc290b4.zip