int uuencode(const u_char *, u_int, char *, size_t);
int uudecode(const char *, u_char *, size_t);
void dump_base64(FILE *, u_char *, u_int);
int uuencode(const u_char *, u_int, char *, size_t);
int uudecode(const char *, u_char *, size_t);
void dump_base64(FILE *, u_char *, u_int);