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<?xml version='1.0'?> <!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
<refentry id="systemd-stdio-bridge"
xmlns:xi="http://www.w3.org/2001/XInclude">
<refentryinfo>
<title>systemd-stdio-bridge</title>
<productname>systemd</productname>
</refentryinfo>
<refmeta>
<refentrytitle>systemd-stdio-bridge</refentrytitle>
<manvolnum>1</manvolnum>
</refmeta>
<refnamediv>
<refname>systemd-stdio-bridge</refname>
<refpurpose>D-Bus proxy</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>systemd-stdio-bridge</command>
<arg choice="opt" rep="repeat">OPTIONS</arg>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><command>systemd-stdio-bridge</command> implements a proxy between STDIN/STDOUT and a D-Bus bus. It
expects to receive an open connection via STDIN/STDOUT when started, and will create a new connection to
the specified bus. It will then forward messages between the two connections. This program is suitable
for socket activation: the first connection may be a pipe or a socket and must be passed as either
standard input, or as an open file descriptor according to the protocol described in
<citerefentry><refentrytitle>sd_listen_fds</refentrytitle><manvolnum>3</manvolnum></citerefentry>. The
second connection will be made by default to the local system bus, but this can be influenced by the
<option>--user</option>, <option>--system</option>, <option>--machine=</option>, and
<option>--bus-path=</option> options described below.</para>
<para><citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry> uses
<command>systemd-stdio-bridge</command> to forward D-Bus connections over
<citerefentry project='man-pages'><refentrytitle>ssh</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
or to connect to the bus of a different user, see
<citerefentry><refentrytitle>sd_bus_set_address</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
</para>
</refsect1>
<refsect1>
<title>Options</title>
<para>The following options are understood:</para>
<variablelist>
<xi:include href="user-system-options.xml" xpointer="user" />
<xi:include href="user-system-options.xml" xpointer="system" />
<xi:include href="user-system-options.xml" xpointer="machine" />
<varlistentry>
<term><option>-p <replaceable>PATH</replaceable></option></term>
<term><option>--bus-path=<replaceable>PATH</replaceable></option></term>
<listitem><para>Path to the bus address. Default: <literal>unix:path=/run/dbus/system_bus_socket</literal>
</para>
<xi:include href="version-info.xml" xpointer="v251"/></listitem>
</varlistentry>
<xi:include href="standard-options.xml" xpointer="help" />
<xi:include href="standard-options.xml" xpointer="version" />
</variablelist>
</refsect1>
<refsect1>
<title>Exit status</title>
<para>On success, 0 is returned, a non-zero failure code otherwise.</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para><simplelist type="inline">
<member><citerefentry project='dbus'><refentrytitle>dbus-daemon</refentrytitle><manvolnum>1</manvolnum></citerefentry></member>
<member><citerefentry project='dbus'><refentrytitle>dbus-broker</refentrytitle><manvolnum>1</manvolnum></citerefentry></member>
<member><ulink url="https://www.freedesktop.org/wiki/Software/dbus">D-Bus</ulink></member>
<member><citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry></member>
</simplelist></para>
</refsect1>
</refentry>
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