./tools/notsd-move

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diff --git a/man/sd_bus_creds_get_pid.xml b/man/sd_bus_creds_get_pid.xml
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-<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
-<!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 2014 Zbigniew Jędrzejewski-Szmek
-
-  systemd is free software; you can redistribute it and/or modify it
-  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
-  Lesser General Public License for more details.
-
-  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_bus_creds_get_pid">
-
-  <refentryinfo>
-    <title>sd_bus_creds_get_pid</title>
-    <productname>systemd</productname>
-
-    <authorgroup>
-      <author>
-        <contrib>A monkey with a typewriter</contrib>
-        <firstname>Zbigniew</firstname>
-        <surname>Jędrzejewski-Szmek</surname>
-        <email>zbyszek@in.waw.pl</email>
-      </author>
-    </authorgroup>
-  </refentryinfo>
-
-  <refmeta>
-    <refentrytitle>sd_bus_creds_get_pid</refentrytitle>
-    <manvolnum>3</manvolnum>
-  </refmeta>
-
-  <refnamediv>
-    <refname>sd_bus_creds_get_pid</refname>
-    <refname>sd_bus_creds_get_ppid</refname>
-    <refname>sd_bus_creds_get_tid</refname>
-    <refname>sd_bus_creds_get_uid</refname>
-    <refname>sd_bus_creds_get_euid</refname>
-    <refname>sd_bus_creds_get_suid</refname>
-    <refname>sd_bus_creds_get_fsuid</refname>
-    <refname>sd_bus_creds_get_gid</refname>
-    <refname>sd_bus_creds_get_egid</refname>
-    <refname>sd_bus_creds_get_sgid</refname>
-    <refname>sd_bus_creds_get_fsgid</refname>
-    <refname>sd_bus_creds_get_supplementary_gids</refname>
-    <refname>sd_bus_creds_get_comm</refname>
-    <refname>sd_bus_creds_get_tid_comm</refname>
-    <refname>sd_bus_creds_get_exe</refname>
-    <refname>sd_bus_creds_get_cmdline</refname>
-    <refname>sd_bus_creds_get_cgroup</refname>
-    <refname>sd_bus_creds_get_unit</refname>
-    <refname>sd_bus_creds_get_slice</refname>
-    <refname>sd_bus_creds_get_user_unit</refname>
-    <refname>sd_bus_creds_get_user_slice</refname>
-    <refname>sd_bus_creds_get_session</refname>
-    <refname>sd_bus_creds_get_owner_uid</refname>
-    <refname>sd_bus_creds_has_effective_cap</refname>
-    <refname>sd_bus_creds_has_permitted_cap</refname>
-    <refname>sd_bus_creds_has_inheritable_cap</refname>
-    <refname>sd_bus_creds_has_bounding_cap</refname>
-    <refname>sd_bus_creds_get_selinux_context</refname>
-    <refname>sd_bus_creds_get_audit_session_id</refname>
-    <refname>sd_bus_creds_get_audit_login_uid</refname>
-    <refname>sd_bus_creds_get_tty</refname>
-    <refname>sd_bus_creds_get_unique_name</refname>
-    <refname>sd_bus_creds_get_well_known_names</refname>
-    <refname>sd_bus_creds_get_description</refname>
-
-    <refpurpose>Retrieve fields from a credentials object</refpurpose>
-  </refnamediv>
-
-  <refsynopsisdiv>
-    <funcsynopsis>
-      <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_pid</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>pid_t *<parameter>pid</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_ppid</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>pid_t *<parameter>ppid</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_tid</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>pid_t *<parameter>tid</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_uid</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>uid_t *<parameter>uid</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_euid</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>uid_t *<parameter>uid</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_suid</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>uid_t *<parameter>uid</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_fsuid</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>uid_t *<parameter>uid</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_gid</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>gid_t *<parameter>gid</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_egid</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>gid_t *<parameter>gid</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_sgid</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>gid_t *<parameter>gid</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_fsgid</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>gid_t *<parameter>gid</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_supplementary_gids</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>const gid_t **<parameter>gids</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_comm</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>const char **<parameter>comm</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_tid_comm</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>const char **<parameter>comm</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_exe</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>const char **<parameter>exe</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_cmdline</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>char ***<parameter>cmdline</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_cgroup</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>const char **<parameter>cgroup</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_unit</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>const char **<parameter>unit</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_slice</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>const char **<parameter>slice</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_user_unit</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>const char **<parameter>unit</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_user_slice</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>const char **<parameter>slice</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_session</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>const char **<parameter>slice</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_owner_uid</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>uid_t *<parameter>uid</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_has_effective_cap</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>int <parameter>capability</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_has_permitted_cap</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>int <parameter>capability</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_has_inheritable_cap</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>int <parameter>capability</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_has_bounding_cap</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>int <parameter>capability</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_selinux_context</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>const char **<parameter>context</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_audit_session_id</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>uint32_t *<parameter>sessionid</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_audit_login_uid</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>uid_t *<parameter>loginuid</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_tty</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>const char **<parameter>tty</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_unique_name</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>const char **<parameter>name</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_well_known_names</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>char ***<parameter>name</parameter></paramdef>
-      </funcprototype>
-
-      <funcprototype>
-        <funcdef>int <function>sd_bus_creds_get_description</function></funcdef>
-        <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef>
-        <paramdef>const char **<parameter>name</parameter></paramdef>
-      </funcprototype>
-
-    </funcsynopsis>
-  </refsynopsisdiv>
-
-  <refsect1>
-    <title>Description</title>
-
-    <para>These functions return credential information from an
-    <parameter>sd_bus_creds</parameter> object. Credential objects may
-    be created with
-    <citerefentry><refentrytitle>sd_bus_creds_new_from_pid</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
-    in which case they describe the credentials of the process
-    identified by the specified PID, with
-    <citerefentry><refentrytitle>sd_bus_get_name_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
-    in which case they describe the credentials of a bus peer
-    identified by the specified bus name, with
-    <citerefentry><refentrytitle>sd_bus_get_owner_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
-    in which case they describe the credentials of the creator of a
-    bus, or with
-    <citerefentry><refentrytitle>sd_bus_message_get_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
-    in which case they describe the credentials of the sender of the
-    message.</para>
-
-    <para>Not all credential fields are part of every
-    <literal>sd_bus_creds</literal> object. Use
-    <citerefentry><refentrytitle>sd_bus_creds_get_mask</refentrytitle><manvolnum>3</manvolnum></citerefentry>
-    to determine the mask of fields available.</para>
-
-    <para><function>sd_bus_creds_get_pid()</function> will retrieve
-    the PID (process identifier). Similarly,
-    <function>sd_bus_creds_get_ppid()</function> will retrieve the
-    parent PID. Note that PID 1 has no parent process, in which case
-    -ENXIO is returned.</para>
-
-    <para><function>sd_bus_creds_get_tid()</function> will retrieve the
-    TID (thread identifier).</para>
-
-    <para><function>sd_bus_creds_get_uid()</function> will retrieve
-    the numeric UID (user identifier). Similarly,
-    <function>sd_bus_creds_get_euid()</function> returns the effective
-    UID, <function>sd_bus_creds_get_suid()</function> the saved UID
-    and <function>sd_bus_creds_get_fsuid()</function> the file system
-    UID.</para>
-
-    <para><function>sd_bus_creds_get_gid()</function> will retrieve the
-    numeric GID (group identifier). Similarly,
-    <function>sd_bus_creds_get_egid()</function> returns the effective
-    GID, <function>sd_bus_creds_get_sgid()</function> the saved GID
-    and <function>sd_bus_creds_get_fsgid()</function> the file system
-    GID.</para>
-
-    <para><function>sd_bus_creds_get_supplementary_gids()</function>
-    will retrieve the supplementary GIDs list.</para>
-
-    <para><function>sd_bus_creds_get_comm()</function> will retrieve the
-    comm field (truncated name of the executable, as stored in
-    <filename>/proc/<replaceable>pid</replaceable>/comm</filename>).
-    </para>
-
-    <para><function>sd_bus_creds_get_tid_comm()</function> will retrieve
-    the comm field of the thread (as stored in
-    <filename>/proc/<replaceable>pid</replaceable>/task/<replaceable>tid</replaceable>/comm</filename>).
-    </para>
-
-    <para><function>sd_bus_creds_get_exe()</function> will retrieve
-    the path to the program executable (as stored in the
-    <filename>/proc/<replaceable>pid</replaceable>/exe</filename>
-    link, but with the <literal> (deleted)</literal> suffix removed). Note
-    that kernel threads do not have an executable path, in which case
-    -ENXIO is returned.</para>
-
-    <para><function>sd_bus_creds_get_cmdline()</function> will
-    retrieve an array of command line arguments (as stored in
-    <filename>/proc/<replaceable>pid</replaceable>/cmdline</filename>). Note
-    that kernel threads do not have a command line, in which case
-    -ENXIO is returned.</para>
-
-    <para><function>sd_bus_creds_get_cgroup()</function> will retrieve
-    the control group path. See <ulink
-    url="https://www.kernel.org/doc/Documentation/cgroups/cgroups.txt">cgroups.txt</ulink>.
-    </para>
-
-    <para><function>sd_bus_creds_get_unit()</function> will retrieve
-    the systemd unit name (in the system instance of systemd) that the
-    process is a part of. See
-    <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>. For
-    processes that are not part of a unit, returns -ENXIO.
-    </para>
-
-    <para><function>sd_bus_creds_get_user_unit()</function> will
-    retrieve the systemd unit name (in the user instance of systemd)
-    that the process is a part of. See
-    <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>. For
-    processes that are not part of a user unit, returns -ENXIO.
-    </para>
-
-    <para><function>sd_bus_creds_get_slice()</function> will retrieve
-    the systemd slice (a unit in the system instance of systemd) that
-    the process is a part of. See
-    <citerefentry><refentrytitle>systemd.slice</refentrytitle><manvolnum>5</manvolnum></citerefentry>. Similarly,
-    <function>sd_bus_creds_get_user_slice()</function> retrieves the
-    systemd slice of the process, in the user instance of systemd.
-    </para>
-
-    <para><function>sd_bus_creds_get_session()</function> will
-    retrieve the identifier of the login session that the process is
-    a part of. See
-    <citerefentry><refentrytitle>systemd-logind.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>. For
-    processes that are not part of a session, returns -ENXIO.
-    </para>
-
-    <para><function>sd_bus_creds_get_owner_uid()</function> will
-    retrieve the numeric UID (user identifier) of the user who owns
-    the login session that the process is a part of. See
-    <citerefentry><refentrytitle>systemd-logind.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
-    For processes that are not part of a session, returns -ENXIO.
-    </para>
-
-    <para><function>sd_bus_creds_has_effective_cap()</function> will check whether the capability specified by
-    <parameter>capability</parameter> was set in the effective capabilities mask. A positive return value means that it
-    was set, zero means that it was not set, and a negative return value indicates an error. See <citerefentry
-    project='man-pages'><refentrytitle>capabilities</refentrytitle><manvolnum>7</manvolnum></citerefentry> and the
-    <varname>AmbientCapabilities=</varname> and <varname>CapabilityBoundingSet=</varname> settings in
-    <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
-    </para>
-
-    <para><function>sd_bus_creds_has_permitted_cap()</function> is
-    similar to <function>sd_bus_creds_has_effective_cap()</function>,
-    but will check the permitted capabilities mask.</para>
-
-    <para><function>sd_bus_creds_has_inheritable_cap()</function> is
-    similar to <function>sd_bus_creds_has_effective_cap()</function>,
-    but will check the inheritable capabilities mask.</para>
-
-    <para><function>sd_bus_creds_has_bounding_cap()</function> is
-    similar to <function>sd_bus_creds_has_effective_cap()</function>,
-    but will check the bounding capabilities mask.</para>
-
-    <para><function>sd_bus_creds_get_selinux_context()</function> will
-    retrieve the SELinux security context (label) of the process.</para>
-
-    <para><function>sd_bus_creds_get_audit_session_id()</function>
-    will retrieve the audit session identifier of the process. Returns
-    -ENXIO for processes that are not part of an audit session.</para>
-
-    <para><function>sd_bus_creds_get_audit_login_uid()</function> will
-    retrieve the audit user login identifier (the identifier of the
-    user who is "responsible" for the session). Returns -ENXIO for
-    processes that are not part of an audit session.</para>
-
-    <para><function>sd_bus_creds_get_tty()</function> will retrieve
-    the controlling TTY, without the prefixing "/dev/". Returns -ENXIO
-    for processes that have no controlling TTY.</para>
-
-    <para><function>sd_bus_creds_get_unique_name()</function> will
-    retrieve the D-Bus unique name. See <ulink
-    url="http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-bus">The
-    D-Bus specification</ulink>.</para>
-
-    <para><function>sd_bus_creds_get_well_known_names()</function> will
-    retrieve the set of D-Bus well-known names. See <ulink
-    url="http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-bus">The
-    D-Bus specification</ulink>.</para>
-
-    <para><function>sd_bus_creds_get_description()</function> will
-    retrieve a descriptive name of the bus connection of the
-    peer. This name is useful to discern multiple bus connections by
-    the same peer, and may be altered by the peer with the
-    <citerefentry><refentrytitle>sd_bus_set_description</refentrytitle><manvolnum>3</manvolnum></citerefentry>
-    call.</para>
-
-    <para>All functions that take a <parameter>const
-    char**</parameter> parameter will store the answer there as an
-    address of a NUL-terminated string. It will be valid as long as
-    <parameter>c</parameter> remains valid, and should not be freed or
-    modified by the caller.</para>
-
-    <para>All functions that take a <parameter>char***</parameter>
-    parameter will store the answer there as an address of an array
-    of strings. Each individual string is NUL-terminated, and the
-    array is NULL-terminated as a whole. It will be valid as long as
-    <parameter>c</parameter> remains valid, and should not be freed or
-    modified by the caller.</para>
-  </refsect1>
-
-  <refsect1>
-    <title>Return Value</title>
-
-    <para>On success, these calls return 0 or a positive integer. On
-    failure, these calls return a negative errno-style error code.
-    </para>
-  </refsect1>
-
-  <refsect1>
-    <title>Errors</title>
-
-    <para>Returned errors may indicate the following problems:</para>
-
-    <variablelist>
-      <varlistentry>
-        <term><constant>-ENODATA</constant></term>
-
-        <listitem><para>The given field is not available in the
-        credentials object <parameter>c</parameter>.</para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><constant>-ENXIO</constant></term>
-
-        <listitem><para>The given field is not specified for the described
-        process or peer. This will be returned by
-        <function>sd_bus_get_unit()</function>,
-        <function>sd_bus_get_slice()</function>,
-        <function>sd_bus_get_user_unit()</function>,
-        <function>sd_bus_get_user_slice()</function>,
-        <function>sd_bus_get_session()</function>, and
-        <function>sd_bus_get_owner_uid()</function> if the process is
-        not part of a systemd system unit, systemd user unit, systemd
-        slice, or logind session. It will also be returned by
-        <function>sd_bus_creds_get_exe()</function> and
-        <function>sd_bus_creds_get_cmdline()</function> for kernel
-        threads (since these are not started from an executable binary,
-        nor have a command line), and by
-        <function>sd_bus_creds_get_audit_session_id()</function> and
-        <function>sd_bus_creds_get_audit_login_uid()</function> when
-        the process is not part of an audit session, and
-        <function>sd_bus_creds_get_tty()</function> if the process has
-        no controlling TTY.
-        </para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><constant>-EINVAL</constant></term>
-
-        <listitem><para>Specified pointer parameter is <constant>NULL</constant>.
-        </para></listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><constant>-ENOMEM</constant></term>
-
-        <listitem><para>Memory allocation failed.</para></listitem>
-      </varlistentry>
-    </variablelist>
-  </refsect1>
-
-  <refsect1>
-    <title>Notes</title>
-
-    <para><function>sd_bus_creds_get_pid()</function> and the other
-    functions described here are available as a shared library, which
-    can be compiled and linked to with the
-    <constant>libsystemd</constant> <citerefentry
-    project='die-net'><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-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
-      <citerefentry><refentrytitle>sd_bus_creds_new_from_pid</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
-      <citerefentry project='man-pages'><refentrytitle>fork</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
-      <citerefentry project='man-pages'><refentrytitle>execve</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
-      <citerefentry project='man-pages'><refentrytitle>credentials</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
-      <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
-      <citerefentry project='man-pages'><refentrytitle>proc</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
-      <citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>
-    </para>
-  </refsect1>
-
-</refentry>