/** @brief Add an event log output
* @param lo Pointer to output to add
*/
-void eventlog_add(struct eventlog_output *lo);
+void eventlog_add(struct eventlog_output *lo) attribute((nonnull(1)));
/** @brief Remove an event log output
* @param lo Pointer to output to remove
*/
-void eventlog_remove(struct eventlog_output *lo);
+void eventlog_remove(struct eventlog_output *lo) attribute((nonnull(1)));
/** @brief Send a message to the event log
* @param keyword Distinguishing keyword for event
* @param ... Extra data, terminated by (char *)0
*/
-void eventlog(const char *keyword, ...);
+void eventlog(const char *keyword, ...) attribute((nonnull(1)));
/** @brief Send a message to the event log
* @param keyword Distinguishing keyword for event
* @param raw Unformatted data
* @param ... Extra data, terminated by (char *)0
*/
-void eventlog_raw(const char *keyword, const char *raw, ...);
+void eventlog_raw(const char *keyword, const char *raw, ...)
+ attribute((nonnull(1, 2)));
#endif /* EVENTLOG_H */