+unsigned int parse_netmask_string(const char *str, bool v6);
+bool split_netmask(char *str, unsigned int *netmask, bool v6);
+int parse_ip_and_netmask(int af, const char *str, void *addr, unsigned int *netmask);
+bool check_pid_path(int pid, const char *exe);
+
+char * format_macaddr(uint8_t *mac);
+
+uint32_t crc32_file(FILE *fp);
+
+const char * uci_get_validate_string(const struct uci_blob_param_list *c, int i);
+
+#ifdef __APPLE__
+#define s6_addr32 __u6_addr.__u6_addr32
+#endif