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authorAchim Gottinger <achim@gentoo.org>2001-02-07 08:43:27 +0000
committerAchim Gottinger <achim@gentoo.org>2001-02-07 08:43:27 +0000
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treef526cbaf0e08e62caaa641982a604c57646a246e /sys-apps/gluelog
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+GLUELOG
+=======
+
+Gluelog is a small program for replacing syslogd. It is based on a program
+called sock-syslog and was originally intended for use with multilog from the
+daemontools package by D.J. Bernstein.
+
+Gluelog takes over /dev/log and writes anything sent to it to stdin of another
+process which is then responsible for logging.
+
+Gluelog also set its uid to "daemon" before it does anything useful. This can
+be configured in the source by changing the value of RUNUSER at the top of the
+source file.
+
+Gluelog takes only one argument: The command line of another program which
+reads from Stdin.
+
+You can use gluelog to log to anything that has the ability to read from stdin.
+
+Example
+=======
+
+Send all system logs to the multilog program:
+ gluelog multilog t /var/log/messages
+
+Install
+=======
+
+Typing just "make" should compile it just fine. Afterwards, copy the file to a
+convenient spot in your path (I use /usr/local/sbin), and modify the bootup scripts to call
+that instead of the usual syslogd (On Redhat Linux, you need to edit
+/etc/rc.d/init.d/syslog).
+
+Advantages and disadvantages
+============================
+
+Using gluelog with multilog has the advantage that no log rotation needs to be done. Multilog
+auto-rotates logs as it goes along, therefore releaving you from running a cron daemon
+on a box which doesn't need it for anything else but log rotation.
+
+Neither gluelog nor multilog (to the best of my knowledge) calls sync() after text
+is logged. This means that if the box goes down or crashes due to some problem and the
+logged text was not written to the disk yet, you may loose it. It does however provide
+a performance advantage.
+
+The Code
+========
+
+The code consists of one file with one huge main() in it. If you can think of any reason
+to split it up into more procedures, feel free to do so :)
+
+In the meantime, you can mail me at gpf@linuxuser.co.za