Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU General Public License
+ You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->
-<refentry id="sd_get_seats">
+<refentry id="sd_get_seats" conditional='HAVE_PAM'>
<refentryinfo>
<title>sd_get_seats</title>
<funcprototype>
<funcdef>int <function>sd_get_uids</function></funcdef>
- <paramdef>char*** <parameter>sessions</parameter></paramdef>
+ <paramdef>uid_t** <parameter>users</parameter></paramdef>
</funcprototype>
</funcsynopsis>
<para><function>sd_get_seats()</function> may be used
to determine all currently available local
- seats. Returns an array of seat identifiers. The
- returned array and all strings it references need to
- be freed with the libc
+ seats. Returns a NULL terminated array of seat
+ identifiers. The returned array and all strings it
+ references need to be freed with the libc
<citerefentry><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
- call after use.</para>
+ call after use. Note that instead of an empty array
+ NULL may be returned and should be considered
+ equivalent to an empty array.</para>
<para>Similar, <function>sd_get_sessions()</function> may
be used to determine all current login sessions.</para>
<para>Similar, <function>sd_get_uids()</function> may
be used to determine all Unix users who currently have login sessions.</para>
+
+ <para>Note that the returned lists are not sorted and in an undefined order.</para>
</refsect1>
<refsect1>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>sd-login</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>sd_session_get_seat</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-login</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_session_get_seat</refentrytitle><manvolnum>3</manvolnum></citerefentry>
</para>
</refsect1>