int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes);
int RAND_egd(const char *path);
int RAND_egd_bytes(const char *path,int bytes);
int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes);
int RAND_egd(const char *path);
int RAND_egd_bytes(const char *path,int bytes);