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man: drop references to manual StandardError=syslog from daemon(7), we do this implicitly since ages

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Lennart Poettering 2014-06-30 19:06:11 +02:00
parent 9546c6ed67
commit 8c63bf4ab0
1 changed files with 15 additions and 23 deletions
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38
man/daemon.xml
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@ -321,29 +321,21 @@
interface.</para></listitem>
<listitem><para>Instead of using the
<function>syslog()</function> call to log directly to the
system syslog service, a new-style daemon may
choose to simply log to standard error via
<function>fprintf()</function>, which is then forwarded to
syslog by the init system. If log
priorities are necessary, these can be
encoded by prefixing individual log
lines with strings like "&lt;4&gt;"
(for log priority 4 "WARNING" in the
syslog priority scheme), following a
similar style as the Linux kernel's
<function>printk()</function> priority system. In fact,
using this style of logging also
enables the init system to optionally
direct all application logging to the
kernel log buffer (kmsg), as
accessible via
<citerefentry><refentrytitle>dmesg</refentrytitle><manvolnum>1</manvolnum></citerefentry>. This
kind of logging may be enabled by
setting
<varname>StandardError=syslog</varname>
in the service unit file. For details,
see
<function>syslog()</function> call to
log directly to the system syslog
service, a new-style daemon may choose
to simply log to standard error via
<function>fprintf()</function>, which
is then forwarded to syslog by the
init system. If log priorities are
necessary, these can be encoded by
prefixing individual log lines with
strings like "&lt;4&gt;" (for log
priority 4 "WARNING" in the syslog
priority scheme), following a similar
style as the Linux kernel's
<function>printk()</function> priority
system. For details, see
<citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>
and
<citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para></listitem>