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  * $Id$
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 */
34