Naming style changes, finally got tired of most of the typedefs. Also the previous enum -> macro change reverted so that we don't use the highest bit anymore, that's incompatible with old indexes so they will be rebuilt.

#ifndef __RANDGEN_H
#define __RANDGEN_H

void random_fill(void *buf, size_t size);

/* may be called multiple times */
void random_init(void);
void random_deinit(void);

#endif