void avahi_hexdump(const void *p, size_t size);
-char *avahi_format_mac_address(const uint8_t* mac, size_t size);
+char *avahi_format_mac_address(char *t, size_t l, const uint8_t* mac, size_t size);
/** Change every character in the string to upper case (ASCII), return a pointer to the string */
char *avahi_strup(char *s);