]> git.ipfire.org Git - thirdparty/systemd.git/blobdiff - man/sd_journal_add_match.xml
travis: use UBSan checks from OSS-Fuzz
[thirdparty/systemd.git] / man / sd_journal_add_match.xml
index fe89cbf75c59f6c4d6ce16ed063ce574514ea88e..83f7fe9242d840df42a72ce586b07cf84dd72023 100644 (file)
@@ -1,43 +1,13 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 <?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" [
-<!ENTITY % entities SYSTEM "custom-entities.ent" >
-%entities;
-]>
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+<!-- SPDX-License-Identifier: LGPL-2.1+ -->
 
 
-<!--
-  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_add_match">
+<refentry id="sd_journal_add_match" xmlns:xi="http://www.w3.org/2001/XInclude">
 
   <refentryinfo>
     <title>sd_journal_add_match</title>
     <productname>systemd</productname>
 
   <refentryinfo>
     <title>sd_journal_add_match</title>
     <productname>systemd</productname>
-
-    <authorgroup>
-      <author>
-        <contrib>Developer</contrib>
-        <firstname>Lennart</firstname>
-        <surname>Poettering</surname>
-        <email>lennart@poettering.net</email>
-      </author>
-    </authorgroup>
   </refentryinfo>
 
   <refmeta>
   </refentryinfo>
 
   <refmeta>
     <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
     and
     <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
     <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>
     and
     <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
-    Matches are of the form <literal>FIELD=value</literal>, where the
-    field part is a short uppercase string consisting only of 0-9, A-Z
-    and the underscore. It may not begin with two underscores or be
-    the empty string. The value part may be any value, including
-    binary. If a match is applied, only entries with this field set
+    Parameter <parameter>data</parameter> must be of the form
+    <literal><replaceable>FIELD</replaceable>=<replaceable>value</replaceable></literal>,
+    where the <replaceable>FIELD</replaceable> part is a short uppercase string consisting only
+    of 0–9, A–Z and the underscore; it may not begin with two underscores or be the empty
+    string. The <replaceable>value</replaceable> part may be anything, including binary. Parameter
+    <parameter>size</parameter> specifies the number of bytes in <parameter>data</parameter>
+    (i.e. the length of <replaceable>FIELD</replaceable>, plus one, plus the length of
+    <replaceable>value</replaceable>). Parameter <parameter>size</parameter> may also be
+    specified as <constant>0</constant>, in which case <parameter>data</parameter>
+    must be a <constant>NUL</constant>-terminated string, and the bytes before the terminating
+    zero are used as the match.</para>
+
+    <para>If a match is applied, only entries with this field set
     will be iterated. Multiple matches may be active at the same time:
     If they apply to different fields, only entries with both fields
     set like this will be iterated. If they apply to the same fields,
     will be iterated. Multiple matches may be active at the same time:
     If they apply to different fields, only entries with both fields
     set like this will be iterated. If they apply to the same fields,
     returns nothing.</para>
   </refsect1>
 
     returns nothing.</para>
   </refsect1>
 
-  <refsect1>
-    <title>Notes</title>
-
-    <para>The <function>sd_journal_add_match()</function>,
-    <function>sd_journal_add_disjunction()</function>,
-    <function>sd_journal_add_conjunction()</function> and
-    <function>sd_journal_flush_matches()</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>
+  <xi:include href="libsystemd-pkgconfig.xml" />
 
   <refsect1>
     <title>Examples</title>
 
   <refsect1>
     <title>Examples</title>
     message ID 03bb1dab98ab4ecfbf6fff2738bdd964 coming from any
     service (this example lacks the necessary error checking):</para>
 
     message ID 03bb1dab98ab4ecfbf6fff2738bdd964 coming from any
     service (this example lacks the necessary error checking):</para>
 
-    <programlisting>...
+    <programlisting>
 int add_matches(sd_journal *j) {
   sd_journal_add_match(j, "_SYSTEMD_UNIT=avahi-daemon.service", 0);
   sd_journal_add_match(j, "PRIORITY=0", 0);
 int add_matches(sd_journal *j) {
   sd_journal_add_match(j, "_SYSTEMD_UNIT=avahi-daemon.service", 0);
   sd_journal_add_match(j, "PRIORITY=0", 0);
@@ -192,7 +159,6 @@ int add_matches(sd_journal *j) {
   sd_journal_add_disjunction(j);
   sd_journal_add_match(j, "MESSAGE_ID=03bb1dab98ab4ecfbf6fff2738bdd964", 0);
 }</programlisting>
   sd_journal_add_disjunction(j);
   sd_journal_add_match(j, "MESSAGE_ID=03bb1dab98ab4ecfbf6fff2738bdd964", 0);
 }</programlisting>
-
   </refsect1>
 
   <refsect1>
   </refsect1>
 
   <refsect1>