X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=man%2Fsd_session_is_active.xml;h=14993bcd67e887a38da2445dc33bba309f0b5004;hb=a1b2c92d8290c76a29ccd0887a92ac064e1bb5a1;hp=4ca3a6c15057ae24b715c0de9fbf9316fbc57dd2;hpb=6433d440729d22f5954ea1bf9c828bbad04e0838;p=thirdparty%2Fsystemd.git

diff --git a/man/sd_session_is_active.xml b/man/sd_session_is_active.xml
index 4ca3a6c1505..14993bcd67e 100644
--- a/man/sd_session_is_active.xml
+++ b/man/sd_session_is_active.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
@@ -184,8 +186,9 @@
     <para><function>sd_session_get_seat()</function> may be used to
     determine the seat identifier of the seat the session identified
     by the specified session identifier belongs to. Note that not all
-    sessions are attached to a seat, this call will fail for them. The
-    returned string needs to be freed with the libc
+    sessions are attached to a seat, this call will fail (returning
+    <constant>-ENODATA</constant>) for them. The returned string needs
+    to be freed with the libc
     <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
     call after use.</para>
 
@@ -289,6 +292,43 @@
     negative errno-style error code.</para>
   </refsect1>
 
+  <refsect1>
+    <title>Errors</title>
+
+    <para>Returned errors may indicate the following problems:</para>
+
+    <variablelist>
+
+      <varlistentry>
+        <term><constant>-ENXIO</constant></term>
+
+        <listitem><para>The specified session does not exist.</para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><constant>-ENODATA</constant></term>
+
+        <listitem><para>The given field is not specified for the described
+        session.</para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><constant>-EINVAL</constant></term>
+
+        <listitem><para>An input parameter was invalid (out of range,
+        or NULL, where that is not accepted).</para></listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><constant>-ENOMEM</constant></term>
+
+        <listitem><para>Memory allocation failed.</para></listitem>
+      </varlistentry>
+    </variablelist>
+  </refsect1>
+
   <refsect1>
     <title>Notes</title>