extern int rpl_sap;
extern int main(int argc, char **argv);
/* util.c */
-extern unsigned char ethtoaret[1024];
-extern unsigned char *ethtoa(void *in);
+extern char ethtoaret[1024];
+extern char *ethtoa(void *in);
extern void daemonize(void);
/* rpl.c */
extern int write_char(unsigned char *ptr, u8 v);