Blame SOURCES/0210-man-note-that-journal-does-not-validate-syslog-field.patch
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From 705a67a53a8a1b836ef17f048366bbf33357afc1 Mon Sep 17 00:00:00 2001
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From: Jan Synacek <jsynacek@redhat.com>
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Date: Tue, 14 May 2019 10:45:08 +0200
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Subject: [PATCH] man: note that journal does not validate syslog fields
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(cherry picked from commit 63ea8032f28052f7cda860e5324c0a83dee7ed23)
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Resolves: #1707175
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---
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man/systemd.journal-fields.xml | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/man/systemd.journal-fields.xml b/man/systemd.journal-fields.xml
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index c079274c32..0c95c4cd95 100644
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--- a/man/systemd.journal-fields.xml
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+++ b/man/systemd.journal-fields.xml
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@@ -111,6 +111,11 @@
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<varname>program_invocation_short_name</varname> variable,
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see
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<citerefentry project='die-net'><refentrytitle>program_invocation_short_name</refentrytitle><manvolnum>3</manvolnum></citerefentry>.)</para>
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+ <para>Note that the journal service does not validate the values of any structured
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+ journal fields whose name is not prefixed with an underscore, and this includes any
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+ syslog related fields such as these. Hence, applications that supply a facility, PID,
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+ or log level are expected to do so properly formatted, i.e. as numeric integers formatted
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+ as decimal strings.</para>
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</listitem>
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</varlistentry>
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