ext/dnet/rand.h

   1 /*
   2  * rand.h
   3  *
   4  * Pseudo-random number generation, based on OpenBSD arc4random().
   5  *
   6  * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
   7  * Copyright (c) 1996 David Mazieres <dm@lcs.mit.edu>
   8  *
   9  * $Id: rand.h,v 1.4 2002/04/07 19:01:25 dugsong Exp $
  10  */
  11
  12 #ifndef DNET_RAND_H
  13 #define DNET_RAND_H
  14
  15 typedef struct rand_handle rand_t;
  16
  17 __BEGIN_DECLS
  18 rand_t  *rand_open(void);
  19
  20 int      rand_get(rand_t *r, void *buf, size_t len);
  21 int      rand_set(rand_t *r, const void *seed, size_t len);
  22 int      rand_add(rand_t *r, const void *buf, size_t len);
  23
  24 uint8_t  rand_uint8(rand_t *r);
  25 uint16_t rand_uint16(rand_t *r);
  26 uint32_t rand_uint32(rand_t *r);
  27
  28 int      rand_shuffle(rand_t *r, void *base, size_t nmemb, size_t size);
  29
  30 rand_t  *rand_close(rand_t *r);
  31 __END_DECLS
  32
  33 #endif /* DNET_RAND_H */