man: add sd-login(7) page

This commit is contained in:
Lennart Poettering 2011-12-19 13:57:07 +01:00
parent c10eb7b02e
commit 01448ff92d
3 changed files with 149 additions and 18 deletions

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@ -799,6 +799,7 @@ MANPAGES = \
man/daemon.7 \
man/sd-daemon.7 \
man/sd-readahead.7 \
man/sd-login.7 \
man/runlevel.8 \
man/telinit.8 \
man/halt.8 \
@ -817,7 +818,13 @@ MANPAGES = \
man/modules-load.d.5 \
man/sysctl.d.5 \
man/systemd-ask-password.1 \
man/systemd-loginctl.1
man/systemd-loginctl.1 \
man/sd_pid_get_session.3 \
man/sd_uid_get_state.3 \
man/sd_session_is_active.3 \
man/sd_seat_get_active.3 \
man/sd_get_seats.3 \
man/sd_login_monitor_new.3
if ENABLE_BINFMT
MANPAGES += \
@ -830,14 +837,22 @@ MANPAGES_ALIAS = \
man/sd_is_socket.3 \
man/sd_is_socket_unix.3 \
man/sd_is_socket_inet.3 \
man/sd_is_mq.3 \
man/sd_notifyf.3 \
man/sd_pid_get_session.3 \
man/sd_uid_get_state.3 \
man/sd_session_is_active.3 \
man/sd_seat_get_active.3 \
man/sd_get_seats.3 \
man/sd_login_monitor_new.3 \
man/init.1
man/init.1 \
man/sd_session_get_uid.3 \
man/sd_session_get_seat.3 \
man/sd_pid_get_owner_uid.3 \
man/sd_uid_is_on_seat.3 \
man/sd_uid_get_sessions.3 \
man/sd_uid_get_seats.3 \
man/sd_seat_get_sessions.3 \
man/sd_seat_can_multi_session.3 \
man/sd_get_sessions.3 \
man/sd_get_uids.3 \
man/sd_login_monitor_unref.3 \
man/sd_login_monitor_flush.3 \
man/sd_login_monitor_get_fd.3
man/reboot.8: man/halt.8
man/poweroff.8: man/halt.8

117
man/sd-login.xml Normal file
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@ -0,0 +1,117 @@
<?xml version='1.0'?> <!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!--
This file is part of systemd.
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
(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.
You should have received a copy of the GNU General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->
<refentry id="sd-login">
<refentryinfo>
<title>sd-login</title>
<productname>systemd</productname>
<authorgroup>
<author>
<contrib>Developer</contrib>
<firstname>Lennart</firstname>
<surname>Poettering</surname>
<email>lennart@poettering.net</email>
</author>
</authorgroup>
</refentryinfo>
<refmeta>
<refentrytitle>sd-login</refentrytitle>
<manvolnum>7</manvolnum>
</refmeta>
<refnamediv>
<refname>sd-login</refname>
<refpurpose>APIs for
tracking logins</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis>
<funcsynopsisinfo>#include &lt;systemd/sd-login.h&gt;</funcsynopsisinfo>
</funcsynopsis>
<cmdsynopsis>
<command>pkg-config --cflags --libs libsystemd-login</command>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><filename>sd-login.h</filename> provides APIs to
introspect and monitor seat, login session and user
status information on the local system. </para>
<para>See <ulink
url="http://www.freedesktop.org/wiki/Software/systemd/multiseat">Multi-Seat
on Linux</ulink> for an introduction into multi-seat
support on Linux, the background for this set of APIs.</para>
<para>Note that these APIs only allow purely passive access
and monitoring of seats, sessions and users. To
actively make changes to the seat configuration,
terminate login sessions, or switch session on a seat
you need to utilize the D-Bus API of
systemd-logind.</para>
<para>See
<citerefentry><refentrytitle>sd_pid_get_session</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_uid_get_state</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_session_is_active</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_seat_get_active</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_get_seats</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_login_monitor_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>
for more information about the functions
implemented.</para>
</refsect1>
<refsect1>
<title>Notes</title>
<para>These APIs are implemented as shared library,
which can be compiled and linked to with the
<literal>libsystemd-login</literal>
<citerefentry><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
file.</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_pid_get_session</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_uid_get_state</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_session_is_active</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_seat_get_active</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_get_seats</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_login_monitor_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd-readahead</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
<citerefentry><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>

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@ -71,16 +71,15 @@
<para><function>sd_pid_get_session()</function> may be
used to determine the login session identifier of a
process identified by the specified process identifier. The session
identifier is a short string (up to 64 characters),
consisting only of the characters a-zA-Z0-9 as well as
'-' and '_'. It is suitable for usage in file system
paths. Note that not all processes are part of a login
session (e.g. system service processes and user
processes that are shared between multiple sessions of
the same user). For processes not being part of a
login session this function will fail. The returned
string needs to be freed with the libc
process identified by the specified process
identifier. The session identifier is a short string,
suitable for usage in file system paths. Note that not
all processes are part of a login session (e.g. system
service processes and user processes that are shared
between multiple sessions of the same user). For
processes not being part of a login session this
function will fail. The returned string needs to be
freed with the libc
<citerefentry><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
call after use.</para>