char **copyip (char **, char **, int);
void cpydata (int, int, char *, char *);
void cpydgst (int, int, char *, char *);
-int decode_rfc2047 (char *, char *);
+int decode_rfc2047 (char *, char *, size_t);
void discard (FILE *);
int done (int);
int ext_hook(char *, char *, char *);