int RAND_load_file(const char *file,long max_bytes);
int RAND_write_file(const char *file);
const char *RAND_file_name(char *file,int num);
int RAND_load_file(const char *file,long max_bytes);
int RAND_write_file(const char *file);
const char *RAND_file_name(char *file,int num);