From 2fbbf1e4790d6ac569c3371e82a9ad0e909d3ab4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
Date: Mon, 18 Nov 2019 22:19:21 +0100
Subject: [PATCH] Document return codes of dig

Dig tool reports some states as exit status. Document them shortly.
---
 bin/dig/dig.docbook | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/bin/dig/dig.docbook b/bin/dig/dig.docbook
index 07e27f9290..e46f740cf7 100644
--- a/bin/dig/dig.docbook
+++ b/bin/dig/dig.docbook
@@ -1395,6 +1395,39 @@ dig +qr www.isc.org any -x 127.0.0.1 isc.org ns +noqr
     </para>
   </refsection>
 
+  <refsection><info><title>RETURN CODES</title></info>
+    <para>
+      <command>Dig</command> return codes are:
+      <variablelist>
+        <varlistentry>
+          <listitem>
+            <para>0: DNS response received, including NXDOMAIN status</para>
+          </listitem>
+        </varlistentry>
+        <varlistentry>
+          <listitem>
+            <para>1: Usage error</para>
+          </listitem>
+        </varlistentry>
+        <varlistentry>
+          <listitem>
+            <para>8: Couldn't open batch file</para>
+          </listitem>
+        </varlistentry>
+        <varlistentry>
+          <listitem>
+            <para>9: No reply from server</para>
+          </listitem>
+        </varlistentry>
+        <varlistentry>
+          <listitem>
+            <para>10: Internal error</para>
+          </listitem>
+        </varlistentry>
+      </variablelist>
+    </para>
+  </refsection>
+
   <refsection><info><title>FILES</title></info>
 
     <para><filename>/etc/resolv.conf</filename>
-- 
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