// 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;
}

echo "local0.*  /var/log/mylog" >> /etc/syslog.conf

sudo /etc/init.d/syslog restart

# Log QSD Centro generated log messages to file
if $programname == 'centro' then /var/log/centro.log
# Uncomment the following to stop logging anything that matches the last rule.
& ~

sudo rm -f /var/log/centro.log

sudo service rsyslog restart

// gcc centro.c -o centro

#include <stdio.h>
#include <syslog.h>

int  main(int argc, char *argv[])
{
    openlog(NULL, 0, LOG_USER);

    syslog(LOG_INFO, "MORTACCI TUA!!!");

    closelog();
    return 0;
}