void replace_add_file(unsigned char *fw, int len, char *fwname, char *lname);
void list_files(unsigned char *fw, int len);
void write_file(char *fname, unsigned char *buf, int len);
void replace_add_file(unsigned char *fw, int len, char *fwname, char *lname);
void list_files(unsigned char *fw, int len);
void write_file(char *fname, unsigned char *buf, int len);