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man: enhance the description of systemd-stdio-bridge

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I hope that this fixes the comment
https://github.com/systemd/systemd/pull/22141#issuecomment-1013960371
> As someone who doesn't know what this prog does

The listing in the man page is sorted according to logical
use: all the options setting the address are now together.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2022-01-17 11:43:48 +01:00
parent cf18de1b26
commit b7bb58ef70
2 changed files with 21 additions and 7 deletions
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26
man/systemd-stdio-bridge.xml
View file

@ -31,9 +31,23 @@
<refsect1>
<title>Description</title>
<para><command>systemd-stdio-bridge</command> may be used as a STDIO or socket-activatable
proxy to a given D-Bus endpoint.</para>
<para><command>systemd-stdio-bridge</command> implements a proxy for a D-Bus endpoint. It expects to
receive an open connection to a bus when started, and will also connect to a (different) bus as a
client. It will then act as a server on the first connection, and forward messages between the two
busses. 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='die-net'><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>
@ -42,6 +56,10 @@
<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>
@ -52,9 +70,6 @@
<xi:include href="standard-options.xml" xpointer="help" />
<xi:include href="standard-options.xml" xpointer="version" />
<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" />
</variablelist>
</refsect1>
@ -70,7 +85,6 @@
<citerefentry project='dbus'><refentrytitle>dbus-daemon</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry project='dbus'><refentrytitle>dbus-broker</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<ulink url="https://www.freedesktop.org/wiki/Software/dbus">D-Bus</ulink>,
<citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>

2
src/stdio-bridge/stdio-bridge.c
View file

@ -28,7 +28,7 @@ static bool arg_user = false;
static int help(void) {
printf("%s [OPTIONS...]\n\n"
"STDIO or socket-activatable proxy to a given DBus endpoint.\n\n"
"Forward messages between two D-Bus busses via a pipe or socket.\n\n"
" -h --help Show this help\n"
" --version Show package version\n"
" -p --bus-path=PATH Path to the bus address (default: %s)\n"