dsyslog
dsyslog(LOG_DEBUG, "read %d utmp entries", nutmp);
dsyslog(LOG_DEBUG, "mail for '%s'", name);
dsyslog(LOG_DEBUG, "check %s against %s", name, utname);
dsyslog(LOG_DEBUG, "%.*s: wrong mode on %s",
dsyslog(LOG_DEBUG, "notify %.*s on %s", (int)sizeof(utp->ut_name),
dsyslog(LOG_ERR, "%s: %s", tty, strerror(errno));