1.\" * SPDX-License-Identifier: BSD-2-Clause 2.\" 3.\" Copyright (c) 2024 Beckhoff Automation GmbH & Co. KG 4.\" 5.\" * Redistribution and use in source and binary forms, with or without 6.\" * modification, are permitted provided that the following conditions 7.\" * are met: 8.\" * 1. Redistributions of source code must retain the above copyright 9.\" * notice, this list of conditions and the following disclaimer. 10.\" * 2. Redistributions in binary form must reproduce the above copyright 11.\" * notice, this list of conditions and the following disclaimer in the 12.\" * documentation and/or other materials provided with the distribution. 13.\" * 14.\" * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" * SUCH DAMAGE. 25.Dd May 20, 2025 26.Dt PAM_XDG 8 27.Os 28.Sh NAME 29.Nm pam_xdg 30.Nd XDG PAM module 31.Sh SYNOPSIS 32.Op Ar service-name 33.Ar module-type 34.Ar control-flag 35.Pa pam_xdg 36.Op Ar arguments 37.Sh DESCRIPTION 38The xdg service module for PAM creates the runtime files base directory 39according to the Cross Desktop Group Base Directory Specification. 40.Pp 41By default the directory is created under 42.Pa /var/run/xdg/ Ns $ Ns Ev USER . 43.Pp 44The following option may be passed to the authentication module: 45.Bl -tag -width "runtime_dir_prefix=directory" 46.It Cm runtime_dir_prefix Ns = Ns Ar directory 47Use an alternate base directory 48.El 49.Sh ENVIRONMENT 50.Bl -tag -width indent 51.It Ev XDG_RUNTIME_DIR 52The location of the runtime files base directory created by this module. 53Note that the module does not set this environment variable. 54.El 55.Sh STANDARDS 56The directory created by this module conforms to the 57.Lk https://specifications.freedesktop.org/basedir-spec XDG Base Directory Specification . 58.Sh SEE ALSO 59.Xr pam 3 , 60.Xr pam.conf 5 61.Sh AUTHORS 62The 63.Nm 64module and this manual page were written by 65.An Emmanuel Vadot Aq Mt manu@FreeBSD.org . 66