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This part of the copyright blurb stems from the GPL use recommendations: https://www.gnu.org/licenses/gpl-howto.en.html The concept appears to originate in times where version control was per file, instead of per tree, and was a way to glue the files together. Ultimately, we nowadays don't live in that world anymore, and this information is entirely useless anyway, as people are very welcome to copy these files into any projects they like, and they shouldn't have to change bits that are part of our copyright header for that. hence, let's just get rid of this old cruft, and shorten our codebase a bit.
123 lines
4.6 KiB
XML
123 lines
4.6 KiB
XML
<?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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SPDX-License-Identifier: LGPL-2.1+
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Copyright 2012 Lennart Poettering
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-->
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<refentry id="sd_journal_get_catalog" xmlns:xi="http://www.w3.org/2001/XInclude">
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<refentryinfo>
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<title>sd_journal_get_catalog</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>sd_journal_get_catalog</refentrytitle>
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<manvolnum>3</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>sd_journal_get_catalog</refname>
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<refname>sd_journal_get_catalog_for_message_id</refname>
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<refpurpose>Retrieve message catalog entry</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<funcsynopsis>
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<funcsynopsisinfo>#include <systemd/sd-journal.h></funcsynopsisinfo>
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<funcprototype>
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<funcdef>int <function>sd_journal_get_catalog</function></funcdef>
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<paramdef>sd_journal *<parameter>j</parameter></paramdef>
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<paramdef>char **<parameter>ret</parameter></paramdef>
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</funcprototype>
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<funcprototype>
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<funcdef>int <function>sd_journal_get_catalog_for_message_id</function></funcdef>
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<paramdef>sd_id128_t <parameter>id</parameter></paramdef>
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<paramdef>char **<parameter>ret</parameter></paramdef>
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</funcprototype>
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</funcsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><function>sd_journal_get_catalog()</function> retrieves a
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message catalog entry for the current journal entry. This will
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look up an entry in the message catalog by using the
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<literal>MESSAGE_ID=</literal> field of the current journal entry.
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Before returning the entry all journal field names in the catalog
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entry text enclosed in "@" will be replaced by the respective
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field values of the current entry. If a field name referenced in
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the message catalog entry does not exist, in the current journal
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entry, the "@" will be removed, but the field name otherwise left
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untouched.</para>
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<para><function>sd_journal_get_catalog_for_message_id()</function>
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works similar to <function>sd_journal_get_catalog()</function> but
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the entry is looked up by the specified message ID (no open
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journal context is necessary for this), and no field substitution
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is performed.</para>
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<para>For more information about the journal message catalog
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please refer to the <ulink
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url="https://www.freedesktop.org/wiki/Software/systemd/catalog">Journal
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Message Catalogs</ulink> documentation page.</para>
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</refsect1>
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<refsect1>
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<title>Return Value</title>
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<para><function>sd_journal_get_catalog()</function> and
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<function>sd_journal_get_catalog_for_message_id()</function>
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return 0 on success or a negative errno-style error code. If no
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matching message catalog entry is found, -ENOENT is
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returned.</para>
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<para>On successful return, <parameter>ret</parameter> points to a
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new string, which must be freed with
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<citerefentry project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
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</para>
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</refsect1>
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<refsect1>
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<title>Notes</title>
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<para>Function <function>sd_journal_get_catalog()</function> is thread-agnostic and only a
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single thread may operate on a given <structname>sd_journal</structname> object. Function
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<function>sd_journal_get_catalog_for_message_id()</function> is thread-safe.</para>
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<xi:include href="libsystemd-pkgconfig.xml" xpointer="pkgconfig-text"/>
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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>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>sd_journal_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
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<citerefentry project='man-pages'><refentrytitle>malloc</refentrytitle><manvolnum>3</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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