acl_get_qualifier
id = acl_get_qualifier(*entry);
id_new = acl_get_qualifier(*entry_new);
id = (uid_t *)acl_get_qualifier(entry);
id = (uid_t *)acl_get_qualifier(entry);
id = (uid_t *)acl_get_qualifier(entry);
void *acl_get_qualifier(acl_entry_t _entry_d);