void get_next_valid_time(time_t pref_time, time_t *valid_time, timeperiod *tperiod) 
{ }

int update_check_stats(int check_type, time_t check_time) 
{ return OK; }

int check_time_against_period(time_t test_time, timeperiod *tperiod) 
{ return OK; }

void free_memory(nagios_macros *mac) 
{ }

char * unescape_check_result_output(const char *rawbuf)
{ return strdup(rawbuf); }