l_get_individual_state
extern int l_get_individual_state(char *, struct l_disk_state_struct *,
extern int l_get_individual_state();
if (err = l_get_individual_state(ses_path_front,
if (err = l_get_individual_state(ses_path_front,
if (err = l_get_individual_state(ses_path_rear,