+int utils_get_count_order_u32(uint32_t x);
+char *utils_get_home_dir(void);
+size_t utils_get_current_time_str(const char *format, char *dst, size_t len);
+gid_t utils_get_group_id(const char *name);
+char *utils_generate_optstring(const struct option *long_options,
+ size_t opt_count);