Hi Guiseppe,
please keep replies on the list.
Regarding setting the destination file: This depends on which syslog
daemon you use. I'm not sure but I think Ubuntu uses syslog-ng. There
the syntax would be like this:
##### /etc/syslog-ng/syslog-ng.conf #####
# Source should already exist, check the name and update the rest
source src { unix-stream("/dev/log"); internal(); };
# Define the logging chain
destination locallog0 { file("/var/log/mylog"); };
filter f_locallog0 { facility(local0); };
log { source(src); filter(f_locallog0); destination(locallog0); };
# Exclude locallog0 from the normal syslog, adapt for your current
# setup
destination syslog { file("/var/log/syslog"); };
filter f_syslog { not facility(local0, <others>); };
log { source(src); filter(f_syslog); destination(syslog); };
##### END #####
Don't forget to restart the daemon.
Regards,
Florian Philipp
Am 11.06.2012 14:54, schrieb Giuseppe Penone:
> I'm sorry to bother again, I'm going with syslog which works pretty good
> but seems to write
> to /var/log/syslog only and I cannot find a way to write to a dedicated
> file.
> I'm using the following code:
>
> // gcc giuspexample.c -o giuspexample
> #include <syslog.h>
>
> int main()
> {
> setlogmask(LOG_UPTO (LOG_NOTICE));
>
> openlog("atm", LOG_CONS | LOG_PID | LOG_NDELAY, LOG_LOCAL0);
>
> syslog(LOG_NOTICE, "Program started by User %d", getuid ());
> syslog(LOG_INFO, "A tree falls in a forest");
>
> closelog();
> return 0;
> }
>
> I followed the instructions on
> http://www.codealias.info/technotes/syslog_simple_example on how to
> change the destination filepath
>
> echo "local0.* /var/log/mylog" >> /etc/syslog.conf
>
> but does not write on /var/log/mylog (still on /var/log/syslog).
> I'm on (L)ubuntu 12.04.
>
> Many thanks.
>
>
>
> On Fri, Jun 8, 2012 at 11:23 PM, Florian Philipp <lists binarywings net
> <mailto:lists binarywings net>> wrote:
>
> Am 08.06.2012 09 <tel:08.06.2012%2009>:55, schrieb Giuseppe Penone:
> > Hi,
> > I need to log to file but I'm not an expert in it, I would like to
> > control the number of days logged to do not fill up the disk.
> > Is there an adviced way to do it in gtkmm?
> > Thanks.
> >
>
> There is a logging stream in gtkmm-utils [1]. It doesn't support
> truncating the files though. Depending on your application, syslog and
> logrotate might be a better approach.
>
> Alternatively, do some timeout logic (using [2]) to change the log file
> every day and remove old ones.
>
> [1] http://code.google.com/p/gtkmm-utils/
> [2]
> http://developer.gnome.org/glibmm/unstable/classGlib_1_1SignalTimeout.html
>
> Regards,
> Florian Philipp
>
>
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>
>
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