hostname: add new hostnamectl tool as text client for hostnamed
This commit is contained in:
parent
0ce8860a15
commit
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1
.gitignore
vendored
1
.gitignore
vendored
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@ -1,3 +1,4 @@
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/hostnamectl
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/timedatectl
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/timedatectl
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/test-date
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/test-date
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/install-tree
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/install-tree
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19
Makefile.am
19
Makefile.am
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@ -3062,6 +3062,25 @@ MANPAGES_ALIAS += \
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man/systemd-hostnamed.8
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man/systemd-hostnamed.8
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man/systemd-hostnamed.8: man/systemd-hostnamed.service.8
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man/systemd-hostnamed.8: man/systemd-hostnamed.service.8
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hostnamectl_SOURCES = \
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src/hostname/hostnamectl.c
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hostnamectl_CFLAGS = \
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$(AM_CFLAGS) \
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$(DBUS_CFLAGS)
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hostnamectl_LDADD = \
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libsystemd-shared.la \
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libsystemd-dbus.la \
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libsystemd-id128-internal.la
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bin_PROGRAMS += \
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hostnamectl
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MANPAGES += \
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man/hostnamectl.1
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endif
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endif
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polkitpolicy_in_files += \
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polkitpolicy_in_files += \
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@ -70,6 +70,11 @@
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<para>Depending on the operating system other
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<para>Depending on the operating system other
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configuration files might be checked for configuration
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configuration files might be checked for configuration
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of the host name as well, however only as fallback.</para>
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of the host name as well, however only as fallback.</para>
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<para>You may use
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<citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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to change the value of this file from the command
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line.</para>
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</refsect1>
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</refsect1>
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<refsect1>
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<refsect1>
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@ -88,7 +93,9 @@
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<citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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<citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-hostnamed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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</para>
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</para>
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</refsect1>
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</refsect1>
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228
man/hostnamectl.xml
Normal file
228
man/hostnamectl.xml
Normal file
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@ -0,0 +1,228 @@
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<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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This file is part of systemd.
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Copyright 2012 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="hostnamectl">
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<refentryinfo>
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<title>hostnamectl</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Lennart</firstname>
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<surname>Poettering</surname>
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<email>lennart@poettering.net</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>hostnamectl</refentrytitle>
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<manvolnum>1</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>hostnamectl</refname>
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<refpurpose>Control the system hostname</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>hostnamectl <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="req">COMMAND</arg></command>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><command>hostnamectl</command> may be used to
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query and change the system hostname and related
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settings.</para>
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<para>This tool distuingishes three different host
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names: the high-level "pretty" hostname which might
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include all all kinds of special characters
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(e.g. "Lennart's Laptop"), the static hostname which
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is used to initialize the kernel hostname at boot
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(e.g. "lennarts-laptop"), and the transient hostname
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which might be assigned temporarily due to network
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configuration and might revert back to the static
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hostname if network connectivity is lost and is only
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temporarily written to the kernel hostname
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(e.g. "dhcp-47-11").</para>
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<para>Note that the pretty hostname has little
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restrictions on the characters used, while the static
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and transient hostnames are limited to the usually
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accepted characters of internet domain names.</para>
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<para>The static host name is stored in
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<filename>/etc/hostname</filename>, see
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<citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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for more information. The pretty host name and icon
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name are stored in
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<filename>/etc/machine-info</filename>, see
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<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
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</refsect1>
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<refsect1>
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<title>Options</title>
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<para>The following options are understood:</para>
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<variablelist>
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<varlistentry>
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<term><option>--help</option></term>
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<term><option>-h</option></term>
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<listitem><para>Prints a short help
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text and exits.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--version</option></term>
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<listitem><para>Prints a short version
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string and exits.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--no-ask-password</option></term>
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<listitem><para>Don't query the user
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for authentication for privileged
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operations.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>-H</option></term>
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<term><option>--host</option></term>
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<listitem><para>Execute operation
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remotely. Specify a hostname, or
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username and hostname separated by @,
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to connect to. This will use SSH to
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talk to a remote
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system.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--static</option></term>
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<term><option>--transient</option></term>
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<term><option>--pretty</option></term>
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<listitem><para>If
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<command>set-hostname</command> is
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invoked and one or more of these
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options are passed only the selected
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hostnames is
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updated.</para></listitem>
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</varlistentry>
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</variablelist>
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<para>The following commands are understood:</para>
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<variablelist>
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<varlistentry>
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<term><command>status</command></term>
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<listitem><para>Show current system
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hostname and related
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information.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><command>set-hostname [NAME]</command></term>
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<listitem><para>Set the system
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hostname. By default this will alter
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the pretty, the static, and the
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transient hostname alike, however if
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one or more of
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<option>--static</option>,
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<option>--transient</option>,
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<option>--pretty</option> are used
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only the selected hostnames are
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changed. If the pretty hostname is
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being set, and static or transient are
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being set as well the specified host
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name will be simplified in regards to
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the character set used before the
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latter are updated. This is done by
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replacing spaces by "-" and removing
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special characters. This ensures that
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the pretty and the static hostname
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are always closely related while still
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following the validity rules of the
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specific name. This simplification of
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the hostname string is not done if
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only the transient and/or static host
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names are set, and the pretty host
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name is left untouched. Pass the empty
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string "" as hostname to reset the
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selected hostnames to their default
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(usually
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"localhost").</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><command>set-icon-name [NAME]</command></term>
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<listitem><para>Set the system icon
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name. The icon name is used by some
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graphical applications to visualize
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this host. The icon name should follow
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the <ulink
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url="http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html">Icon
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Naming Specification</ulink>. Pass an
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empty string to this operatoin to
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reset the icon name to the default
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value which is determined from the
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system form factor and possibly other
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parameters.</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Exit status</title>
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<para>On success 0 is returned, a non-zero failure
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code otherwise.</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-hostnamed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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@ -82,14 +82,21 @@
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<para>The time zone may be overridden for individual
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<para>The time zone may be overridden for individual
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programs by using the TZ environment variable. See
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programs by using the TZ environment variable. See
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<citerefentry><refentrytitle>environ</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
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<citerefentry><refentrytitle>environ</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
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<para>You may use
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<citerefentry><refentrytitle>timedatectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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to change the settings of this file from the command
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line.</para>
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</refsect1>
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</refsect1>
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<refsect1>
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<refsect1>
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<title>See Also</title>
|
<title>See Also</title>
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<para>
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<para>
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<citerefentry><refentrytitle>tzset</refentrytitle><manvolnum>3</manvolnum></citerefentry>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>localtime</refentrytitle><manvolnum>3</manvolnum></citerefentry>
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<citerefentry><refentrytitle>tzset</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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<citerefentry><refentrytitle>localtime</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>timedatectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-timedated.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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</para>
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</para>
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</refsect1>
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</refsect1>
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|
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|
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@ -74,6 +74,11 @@
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<para>Depending on the operating system other
|
<para>Depending on the operating system other
|
||||||
configuration files might be checked for machine
|
configuration files might be checked for machine
|
||||||
information as well, however only as fallback.</para>
|
information as well, however only as fallback.</para>
|
||||||
|
|
||||||
|
<para>You may use
|
||||||
|
<citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
|
||||||
|
to change the settings of this file from the command
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|
line.</para>
|
||||||
</refsect1>
|
</refsect1>
|
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|
|
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<refsect1>
|
<refsect1>
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|
@ -140,7 +145,9 @@ ICON_NAME=computer-laptop</programlisting>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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|
<citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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|
<citerefentry><refentrytitle>systemd-hostnamed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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</para>
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</para>
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</refsect1>
|
</refsect1>
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|
|
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|
|
|
@ -74,8 +74,9 @@
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<para>
|
<para>
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||||||
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
<citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>sethostname</refentrytitle><manvolnum>2</manvolnum></citerefentry>,
|
<citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>
|
<citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
||||||
|
<citerefentry><refentrytitle>sethostname</refentrytitle><manvolnum>2</manvolnum></citerefentry>
|
||||||
</para>
|
</para>
|
||||||
</refsect1>
|
</refsect1>
|
||||||
|
|
||||||
|
|
|
@ -154,7 +154,12 @@
|
||||||
<command>list-timezones</command>. If
|
<command>list-timezones</command>. If
|
||||||
the RTC is configured to be in the
|
the RTC is configured to be in the
|
||||||
local time this will also update the
|
local time this will also update the
|
||||||
RTC time.</para></listitem>
|
RTC time. This call will alter the
|
||||||
|
<filename>/etc/localtime</filename>
|
||||||
|
symlink. See
|
||||||
|
<citerefentry><refentrytitle>localtime</refentrytitle><manvolnum>5</manvolnum></citerefentry>
|
||||||
|
for more
|
||||||
|
information.</para></listitem>
|
||||||
</varlistentry>
|
</varlistentry>
|
||||||
|
|
||||||
<varlistentry>
|
<varlistentry>
|
||||||
|
@ -235,6 +240,7 @@
|
||||||
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
||||||
<citerefentry><refentrytitle>hwclock</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
|
<citerefentry><refentrytitle>hwclock</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
|
||||||
<citerefentry><refentrytitle>date</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
<citerefentry><refentrytitle>date</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
||||||
|
<citerefentry><refentrytitle>localtime</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
||||||
<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
||||||
<citerefentry><refentrytitle>systemd-timedated.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
|
<citerefentry><refentrytitle>systemd-timedated.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
|
||||||
</para>
|
</para>
|
||||||
|
|
525
src/hostname/hostnamectl.c
Normal file
525
src/hostname/hostnamectl.c
Normal file
|
@ -0,0 +1,525 @@
|
||||||
|
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
||||||
|
|
||||||
|
/***
|
||||||
|
This file is part of systemd.
|
||||||
|
|
||||||
|
Copyright 2012 Lennart Poettering
|
||||||
|
|
||||||
|
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/>.
|
||||||
|
***/
|
||||||
|
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <stdbool.h>
|
||||||
|
#include <unistd.h>
|
||||||
|
#include <getopt.h>
|
||||||
|
#include <string.h>
|
||||||
|
#include <sys/timex.h>
|
||||||
|
|
||||||
|
#include "dbus-common.h"
|
||||||
|
#include "util.h"
|
||||||
|
#include "spawn-polkit-agent.h"
|
||||||
|
#include "build.h"
|
||||||
|
#include "hwclock.h"
|
||||||
|
#include "strv.h"
|
||||||
|
#include "sd-id128.h"
|
||||||
|
#include "virt.h"
|
||||||
|
|
||||||
|
static enum transport {
|
||||||
|
TRANSPORT_NORMAL,
|
||||||
|
TRANSPORT_SSH,
|
||||||
|
TRANSPORT_POLKIT
|
||||||
|
} arg_transport = TRANSPORT_NORMAL;
|
||||||
|
static bool arg_ask_password = true;
|
||||||
|
static const char *arg_host = NULL;
|
||||||
|
static bool arg_set_transient = false;
|
||||||
|
static bool arg_set_pretty = false;
|
||||||
|
static bool arg_set_static = false;
|
||||||
|
|
||||||
|
static void polkit_agent_open_if_enabled(void) {
|
||||||
|
|
||||||
|
/* Open the polkit agent as a child process if necessary */
|
||||||
|
|
||||||
|
if (!arg_ask_password)
|
||||||
|
return;
|
||||||
|
|
||||||
|
polkit_agent_open();
|
||||||
|
}
|
||||||
|
|
||||||
|
typedef struct StatusInfo {
|
||||||
|
const char *hostname;
|
||||||
|
const char *static_hostname;
|
||||||
|
const char *pretty_hostname;
|
||||||
|
const char *icon_name;
|
||||||
|
} StatusInfo;
|
||||||
|
|
||||||
|
static void print_status_info(StatusInfo *i) {
|
||||||
|
sd_id128_t mid, bid;
|
||||||
|
int r;
|
||||||
|
const char *id;
|
||||||
|
|
||||||
|
assert(i);
|
||||||
|
|
||||||
|
printf(" Static hostname: %s\n",
|
||||||
|
strna(i->static_hostname));
|
||||||
|
|
||||||
|
if (!streq_ptr(i->hostname, i->static_hostname))
|
||||||
|
printf("Transient hostname: %s\n",
|
||||||
|
strna(i->hostname));
|
||||||
|
|
||||||
|
printf(" Pretty hostname: %s\n"
|
||||||
|
" Icon name: %s\n",
|
||||||
|
strna(i->pretty_hostname),
|
||||||
|
strna(i->icon_name));
|
||||||
|
|
||||||
|
r = sd_id128_get_machine(&mid);
|
||||||
|
if (r >= 0)
|
||||||
|
printf(" Machine ID: " SD_ID128_FORMAT_STR "\n", SD_ID128_FORMAT_VAL(mid));
|
||||||
|
|
||||||
|
r = sd_id128_get_boot(&bid);
|
||||||
|
if (r >= 0)
|
||||||
|
printf(" Boot ID: " SD_ID128_FORMAT_STR "\n", SD_ID128_FORMAT_VAL(bid));
|
||||||
|
|
||||||
|
if (detect_virtualization(&id) >= 0)
|
||||||
|
printf(" Virtualization: %s\n", id);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int status_property(const char *name, DBusMessageIter *iter, StatusInfo *i) {
|
||||||
|
assert(name);
|
||||||
|
assert(iter);
|
||||||
|
|
||||||
|
switch (dbus_message_iter_get_arg_type(iter)) {
|
||||||
|
|
||||||
|
case DBUS_TYPE_STRING: {
|
||||||
|
const char *s;
|
||||||
|
|
||||||
|
dbus_message_iter_get_basic(iter, &s);
|
||||||
|
if (!isempty(s)) {
|
||||||
|
if (streq(name, "Hostname"))
|
||||||
|
i->hostname = s;
|
||||||
|
if (streq(name, "StaticHostname"))
|
||||||
|
i->static_hostname = s;
|
||||||
|
if (streq(name, "PrettyHostname"))
|
||||||
|
i->pretty_hostname = s;
|
||||||
|
if (streq(name, "IconName"))
|
||||||
|
i->icon_name = s;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int show_status(DBusConnection *bus, char **args, unsigned n) {
|
||||||
|
_cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
|
||||||
|
const char *interface = "";
|
||||||
|
int r;
|
||||||
|
DBusMessageIter iter, sub, sub2, sub3;
|
||||||
|
StatusInfo info;
|
||||||
|
|
||||||
|
assert(args);
|
||||||
|
|
||||||
|
r = bus_method_call_with_reply(
|
||||||
|
bus,
|
||||||
|
"org.freedesktop.hostname1",
|
||||||
|
"/org/freedesktop/hostname1",
|
||||||
|
"org.freedesktop.DBus.Properties",
|
||||||
|
"GetAll",
|
||||||
|
&reply,
|
||||||
|
NULL,
|
||||||
|
DBUS_TYPE_STRING, &interface,
|
||||||
|
DBUS_TYPE_INVALID);
|
||||||
|
if (r < 0)
|
||||||
|
return r;
|
||||||
|
|
||||||
|
if (!dbus_message_iter_init(reply, &iter) ||
|
||||||
|
dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
|
||||||
|
dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
|
||||||
|
log_error("Failed to parse reply.");
|
||||||
|
return -EIO;
|
||||||
|
}
|
||||||
|
|
||||||
|
zero(info);
|
||||||
|
dbus_message_iter_recurse(&iter, &sub);
|
||||||
|
|
||||||
|
while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
|
||||||
|
const char *name;
|
||||||
|
|
||||||
|
if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
|
||||||
|
log_error("Failed to parse reply.");
|
||||||
|
return -EIO;
|
||||||
|
}
|
||||||
|
|
||||||
|
dbus_message_iter_recurse(&sub, &sub2);
|
||||||
|
|
||||||
|
if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
|
||||||
|
log_error("Failed to parse reply.");
|
||||||
|
return -EIO;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
|
||||||
|
log_error("Failed to parse reply.");
|
||||||
|
return -EIO;
|
||||||
|
}
|
||||||
|
|
||||||
|
dbus_message_iter_recurse(&sub2, &sub3);
|
||||||
|
|
||||||
|
r = status_property(name, &sub3, &info);
|
||||||
|
if (r < 0) {
|
||||||
|
log_error("Failed to parse reply.");
|
||||||
|
return r;
|
||||||
|
}
|
||||||
|
|
||||||
|
dbus_message_iter_next(&sub);
|
||||||
|
}
|
||||||
|
|
||||||
|
print_status_info(&info);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static char* hostname_simplify(char *s) {
|
||||||
|
char *p, *d;
|
||||||
|
|
||||||
|
for (p = s, d = s; *p; p++) {
|
||||||
|
if ((*p >= 'a' && *p <= 'z') ||
|
||||||
|
(*p >= '0' && *p <= '9') ||
|
||||||
|
*p == '-' || *p == '_')
|
||||||
|
*(d++) = *p;
|
||||||
|
else if (*p >= 'A' && *p <= 'Z')
|
||||||
|
*(d++) = *p - 'A' + 'a';
|
||||||
|
else if (*p == ' ')
|
||||||
|
*(d++) = '-';
|
||||||
|
}
|
||||||
|
|
||||||
|
*d = 0;
|
||||||
|
|
||||||
|
strshorten(s, HOST_NAME_MAX);
|
||||||
|
return s;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int set_hostname(DBusConnection *bus, char **args, unsigned n) {
|
||||||
|
_cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
|
||||||
|
dbus_bool_t interactive = true;
|
||||||
|
_cleanup_free_ char *h = NULL;
|
||||||
|
const char *hostname = args[1];
|
||||||
|
int r;
|
||||||
|
|
||||||
|
assert(args);
|
||||||
|
assert(n == 2);
|
||||||
|
|
||||||
|
polkit_agent_open_if_enabled();
|
||||||
|
|
||||||
|
if (arg_set_pretty) {
|
||||||
|
r = bus_method_call_with_reply(
|
||||||
|
bus,
|
||||||
|
"org.freedesktop.hostname1",
|
||||||
|
"/org/freedesktop/hostname1",
|
||||||
|
"org.freedesktop.hostname1",
|
||||||
|
"SetPrettyHostname",
|
||||||
|
&reply,
|
||||||
|
NULL,
|
||||||
|
DBUS_TYPE_STRING, &hostname,
|
||||||
|
DBUS_TYPE_BOOLEAN, &interactive,
|
||||||
|
DBUS_TYPE_INVALID);
|
||||||
|
if (r < 0)
|
||||||
|
return r;
|
||||||
|
|
||||||
|
h = strdup(hostname);
|
||||||
|
if (!h)
|
||||||
|
return log_oom();
|
||||||
|
|
||||||
|
hostname = hostname_simplify(h);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (arg_set_static) {
|
||||||
|
r = bus_method_call_with_reply(
|
||||||
|
bus,
|
||||||
|
"org.freedesktop.hostname1",
|
||||||
|
"/org/freedesktop/hostname1",
|
||||||
|
"org.freedesktop.hostname1",
|
||||||
|
"SetStaticHostname",
|
||||||
|
&reply,
|
||||||
|
NULL,
|
||||||
|
DBUS_TYPE_STRING, &hostname,
|
||||||
|
DBUS_TYPE_BOOLEAN, &interactive,
|
||||||
|
DBUS_TYPE_INVALID);
|
||||||
|
|
||||||
|
if (r < 0)
|
||||||
|
return r;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (arg_set_transient) {
|
||||||
|
r = bus_method_call_with_reply(
|
||||||
|
bus,
|
||||||
|
"org.freedesktop.hostname1",
|
||||||
|
"/org/freedesktop/hostname1",
|
||||||
|
"org.freedesktop.hostname1",
|
||||||
|
"SetHostname",
|
||||||
|
&reply,
|
||||||
|
NULL,
|
||||||
|
DBUS_TYPE_STRING, &hostname,
|
||||||
|
DBUS_TYPE_BOOLEAN, &interactive,
|
||||||
|
DBUS_TYPE_INVALID);
|
||||||
|
|
||||||
|
if (r < 0)
|
||||||
|
return r;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int set_icon_name(DBusConnection *bus, char **args, unsigned n) {
|
||||||
|
_cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
|
||||||
|
dbus_bool_t interactive = true;
|
||||||
|
|
||||||
|
assert(args);
|
||||||
|
assert(n == 2);
|
||||||
|
|
||||||
|
polkit_agent_open_if_enabled();
|
||||||
|
|
||||||
|
return bus_method_call_with_reply(
|
||||||
|
bus,
|
||||||
|
"org.freedesktop.hostname1",
|
||||||
|
"/org/freedesktop/hostname1",
|
||||||
|
"org.freedesktop.hostname1",
|
||||||
|
"SetIconName",
|
||||||
|
&reply,
|
||||||
|
NULL,
|
||||||
|
DBUS_TYPE_STRING, &args[1],
|
||||||
|
DBUS_TYPE_BOOLEAN, &interactive,
|
||||||
|
DBUS_TYPE_INVALID);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int help(void) {
|
||||||
|
|
||||||
|
printf("%s [OPTIONS...] {COMMAND} ...\n\n"
|
||||||
|
"Query or set system hostname.\n\n"
|
||||||
|
" -h --help Show this help\n"
|
||||||
|
" --version Show package version\n"
|
||||||
|
" --no-ask-password Do not prompt for password\n"
|
||||||
|
" --transient Only set transient hostname\n"
|
||||||
|
" --static Only set static hostname\n"
|
||||||
|
" --pretty Only set pretty hostname\n"
|
||||||
|
" -H --host=[USER@]HOST Operate on remote host\n\n"
|
||||||
|
"Commands:\n"
|
||||||
|
" status Show current hostname settings\n"
|
||||||
|
" set-hostname [NAME] Set system hostname\n"
|
||||||
|
" set-icon-name [NAME] Set icon name for host\n",
|
||||||
|
program_invocation_short_name);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int parse_argv(int argc, char *argv[]) {
|
||||||
|
|
||||||
|
enum {
|
||||||
|
ARG_VERSION = 0x100,
|
||||||
|
ARG_NO_ASK_PASSWORD,
|
||||||
|
ARG_SET_TRANSIENT,
|
||||||
|
ARG_SET_STATIC,
|
||||||
|
ARG_SET_PRETTY
|
||||||
|
};
|
||||||
|
|
||||||
|
static const struct option options[] = {
|
||||||
|
{ "help", no_argument, NULL, 'h' },
|
||||||
|
{ "version", no_argument, NULL, ARG_VERSION },
|
||||||
|
{ "transient", no_argument, NULL, ARG_SET_TRANSIENT },
|
||||||
|
{ "static", no_argument, NULL, ARG_SET_STATIC },
|
||||||
|
{ "pretty", no_argument, NULL, ARG_SET_PRETTY },
|
||||||
|
{ "host", required_argument, NULL, 'H' },
|
||||||
|
{ "privileged", no_argument, NULL, 'P' },
|
||||||
|
{ "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
|
||||||
|
{ NULL, 0, NULL, 0 }
|
||||||
|
};
|
||||||
|
|
||||||
|
int c;
|
||||||
|
|
||||||
|
assert(argc >= 0);
|
||||||
|
assert(argv);
|
||||||
|
|
||||||
|
while ((c = getopt_long(argc, argv, "hp:as:H:P", options, NULL)) >= 0) {
|
||||||
|
|
||||||
|
switch (c) {
|
||||||
|
|
||||||
|
case 'h':
|
||||||
|
help();
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
case ARG_VERSION:
|
||||||
|
puts(PACKAGE_STRING);
|
||||||
|
puts(DISTRIBUTION);
|
||||||
|
puts(SYSTEMD_FEATURES);
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
case 'P':
|
||||||
|
arg_transport = TRANSPORT_POLKIT;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 'H':
|
||||||
|
arg_transport = TRANSPORT_SSH;
|
||||||
|
arg_host = optarg;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case ARG_SET_TRANSIENT:
|
||||||
|
arg_set_transient = true;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case ARG_SET_PRETTY:
|
||||||
|
arg_set_pretty = true;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case ARG_SET_STATIC:
|
||||||
|
arg_set_static = true;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case '?':
|
||||||
|
return -EINVAL;
|
||||||
|
|
||||||
|
default:
|
||||||
|
log_error("Unknown option code %c", c);
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!arg_set_transient && !arg_set_pretty && !arg_set_static)
|
||||||
|
arg_set_transient = arg_set_pretty = arg_set_static = true;
|
||||||
|
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int hostnamectl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
|
||||||
|
|
||||||
|
static const struct {
|
||||||
|
const char* verb;
|
||||||
|
const enum {
|
||||||
|
MORE,
|
||||||
|
LESS,
|
||||||
|
EQUAL
|
||||||
|
} argc_cmp;
|
||||||
|
const int argc;
|
||||||
|
int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
|
||||||
|
} verbs[] = {
|
||||||
|
{ "status", LESS, 1, show_status },
|
||||||
|
{ "set-hostname", LESS, 2, set_hostname },
|
||||||
|
{ "set-icon-name", EQUAL, 2, set_icon_name },
|
||||||
|
};
|
||||||
|
|
||||||
|
int left;
|
||||||
|
unsigned i;
|
||||||
|
|
||||||
|
assert(argc >= 0);
|
||||||
|
assert(argv);
|
||||||
|
assert(error);
|
||||||
|
|
||||||
|
left = argc - optind;
|
||||||
|
|
||||||
|
if (left <= 0)
|
||||||
|
/* Special rule: no arguments means "status" */
|
||||||
|
i = 0;
|
||||||
|
else {
|
||||||
|
if (streq(argv[optind], "help")) {
|
||||||
|
help();
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (i = 0; i < ELEMENTSOF(verbs); i++)
|
||||||
|
if (streq(argv[optind], verbs[i].verb))
|
||||||
|
break;
|
||||||
|
|
||||||
|
if (i >= ELEMENTSOF(verbs)) {
|
||||||
|
log_error("Unknown operation %s", argv[optind]);
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
switch (verbs[i].argc_cmp) {
|
||||||
|
|
||||||
|
case EQUAL:
|
||||||
|
if (left != verbs[i].argc) {
|
||||||
|
log_error("Invalid number of arguments.");
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
break;
|
||||||
|
|
||||||
|
case MORE:
|
||||||
|
if (left < verbs[i].argc) {
|
||||||
|
log_error("Too few arguments.");
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
break;
|
||||||
|
|
||||||
|
case LESS:
|
||||||
|
if (left > verbs[i].argc) {
|
||||||
|
log_error("Too many arguments.");
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
break;
|
||||||
|
|
||||||
|
default:
|
||||||
|
assert_not_reached("Unknown comparison operator.");
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!bus) {
|
||||||
|
log_error("Failed to get D-Bus connection: %s", error->message);
|
||||||
|
return -EIO;
|
||||||
|
}
|
||||||
|
|
||||||
|
return verbs[i].dispatch(bus, argv + optind, left);
|
||||||
|
}
|
||||||
|
|
||||||
|
int main(int argc, char *argv[]) {
|
||||||
|
int r, retval = EXIT_FAILURE;
|
||||||
|
DBusConnection *bus = NULL;
|
||||||
|
DBusError error;
|
||||||
|
|
||||||
|
dbus_error_init(&error);
|
||||||
|
|
||||||
|
log_parse_environment();
|
||||||
|
log_open();
|
||||||
|
|
||||||
|
r = parse_argv(argc, argv);
|
||||||
|
if (r < 0)
|
||||||
|
goto finish;
|
||||||
|
else if (r == 0) {
|
||||||
|
retval = EXIT_SUCCESS;
|
||||||
|
goto finish;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (arg_transport == TRANSPORT_NORMAL)
|
||||||
|
bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error);
|
||||||
|
else if (arg_transport == TRANSPORT_POLKIT)
|
||||||
|
bus_connect_system_polkit(&bus, &error);
|
||||||
|
else if (arg_transport == TRANSPORT_SSH)
|
||||||
|
bus_connect_system_ssh(NULL, arg_host, &bus, &error);
|
||||||
|
else
|
||||||
|
assert_not_reached("Uh, invalid transport...");
|
||||||
|
|
||||||
|
r = hostnamectl_main(bus, argc, argv, &error);
|
||||||
|
retval = r < 0 ? EXIT_FAILURE : r;
|
||||||
|
|
||||||
|
finish:
|
||||||
|
if (bus) {
|
||||||
|
dbus_connection_flush(bus);
|
||||||
|
dbus_connection_close(bus);
|
||||||
|
dbus_connection_unref(bus);
|
||||||
|
}
|
||||||
|
|
||||||
|
dbus_error_free(&error);
|
||||||
|
dbus_shutdown();
|
||||||
|
|
||||||
|
return retval;
|
||||||
|
}
|
Loading…
Reference in a new issue