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authorLuke Shumaker <lukeshu@sbcglobal.net>2016-10-22 21:20:44 -0400
committerLuke Shumaker <lukeshu@sbcglobal.net>2016-10-22 21:20:44 -0400
commit8ebd32734a1a2394db1702832a48f131296cff32 (patch)
tree8ec2110054bc20f3511c271cebf51b99b0cb6c57 /src/libsystemd/sd_journal_get_catalog.xml
parent782296ccf2049ef239130e7f1afe5bdb9bd12068 (diff)
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+<?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 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/>.
+-->
+
+<refentry id="sd_journal_get_catalog">
+
+ <refentryinfo>
+ <title>sd_journal_get_catalog</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_journal_get_catalog</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>sd_journal_get_catalog</refname>
+ <refname>sd_journal_get_catalog_for_message_id</refname>
+ <refpurpose>Retrieve message catalog entry</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;systemd/sd-journal.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_get_catalog</function></funcdef>
+ <paramdef>sd_journal *<parameter>j</parameter></paramdef>
+ <paramdef>char **<parameter>ret</parameter></paramdef>
+ </funcprototype>
+
+ <funcprototype>
+ <funcdef>int <function>sd_journal_get_catalog_for_message_id</function></funcdef>
+ <paramdef>sd_id128_t <parameter>id</parameter></paramdef>
+ <paramdef>char **<parameter>ret</parameter></paramdef>
+ </funcprototype>
+
+
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para><function>sd_journal_get_catalog()</function> retrieves a
+ message catalog entry for the current journal entry. This will
+ look up an entry in the message catalog by using the
+ <literal>MESSAGE_ID=</literal> field of the current journal entry.
+ Before returning the entry all journal field names in the catalog
+ entry text enclosed in "@" will be replaced by the respective
+ field values of the current entry. If a field name referenced in
+ the message catalog entry does not exist, in the current journal
+ entry, the "@" will be removed, but the field name otherwise left
+ untouched.</para>
+
+ <para><function>sd_journal_get_catalog_for_message_id()</function>
+ works similar to <function>sd_journal_get_catalog()</function> but
+ the entry is looked up by the specified message ID (no open
+ journal context is necessary for this), and no field substitution
+ is performed.</para>
+
+ <para>For more information about the journal message catalog
+ please refer to the <ulink
+ url="http://www.freedesktop.org/wiki/Software/systemd/catalog">Journal
+ Message Catalogs</ulink> documentation page.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+
+ <para><function>sd_journal_get_catalog()</function> and
+ <function>sd_journal_get_catalog_for_message_id()</function>
+ return 0 on success or a negative errno-style error code. If no
+ matching message catalog entry is found, -ENOENT is
+ returned.</para>
+
+ <para>On successful return, <parameter>ret</parameter> points to a
+ new string, which must be freed with
+ <citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>The <function>sd_journal_get_catalog()</function> and
+ <function>sd_journal_get_catalog_for_message_id()</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>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>malloc</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+
+</refentry>