void daemonize(const char *tag, int fac, const char *pidfile);
/* Go into background. Send stdout/stderr to syslog.
* If @pri@ is non-null, it should be "facility.level"
void daemonize(const char *tag, int fac, const char *pidfile);
/* Go into background. Send stdout/stderr to syslog.
* If @pri@ is non-null, it should be "facility.level"