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Diffstat (limited to 'src/libsystemd/sd_machine_get_class.xml')
| -rw-r--r-- | src/libsystemd/sd_machine_get_class.xml | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/src/libsystemd/sd_machine_get_class.xml b/src/libsystemd/sd_machine_get_class.xml new file mode 100644 index 0000000000..ef604139da --- /dev/null +++ b/src/libsystemd/sd_machine_get_class.xml @@ -0,0 +1,152 @@ +<?xml version='1.0'?> <!--*-nxml-*--> +<!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 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/>. +--> + +<refentry id="sd_machine_get_class"> + + <refentryinfo> + <title>sd_machine_get_class</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>sd_machine_get_class</refentrytitle> + <manvolnum>3</manvolnum> + </refmeta> + + <refnamediv> + <refname>sd_machine_get_class</refname> + <refname>sd_machine_get_ifindices</refname> + <refpurpose>Determine the class and network interface indices of a + locally running virtual machine or container.</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <funcsynopsis> + <funcsynopsisinfo>#include <systemd/sd-login.h></funcsynopsisinfo> + + <funcprototype> + <funcdef>int <function>sd_machine_get_class</function></funcdef> + <paramdef>const char* <parameter>machine</parameter></paramdef> + <paramdef>char **<parameter>class</parameter></paramdef> + </funcprototype> + + <funcprototype> + <funcdef>int <function>sd_machine_get_ifindices</function></funcdef> + <paramdef>const char* <parameter>machine</parameter></paramdef> + <paramdef>int **<parameter>ifindices</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><function>sd_machine_get_class()</function> may be used to + determine the class of a locally running virtual machine or + container that is registered with + <citerefentry><refentrytitle>systemd-machined.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>. + The string returned is either <literal>vm</literal> or + <literal>container</literal>. The returned string needs to be + freed with the libc <citerefentry + project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry> + call after use.</para> + + <para><function>sd_machine_get_ifindices()</function> may be used + to determine the numeric indices of the network interfaces on the + host that are pointing towards the specified locally running + virtual machine or container that is registered with + <citerefentry><refentrytitle>systemd-machined.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>. + The returned array needs to be freed with the libc <citerefentry + project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry> + call after use.</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>-ENXIO</constant></term> + + <listitem><para>The specified machine does not exist or is currently not running.</para> + </listitem> + </varlistentry> + + <varlistentry> + <term><constant>-EINVAL</constant></term> + + <listitem><para>An input parameter was invalid (out of range, + or NULL, where that is not accepted).</para></listitem> + </varlistentry> + + <varlistentry> + <term><constant>-ENOMEM</constant></term> + + <listitem><para>Memory allocation failed.</para></listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Notes</title> + + <para>The <function>sd_machine_get_class()</function> and + <function>sd_machine_get_ifindices()</function> interfaces 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-login</refentrytitle><manvolnum>3</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-machined.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>sd_pid_get_machine_name</refentrytitle><manvolnum>3</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> |