/*
 * Copyright (c) 1996, David Mazieres <dm@uun.org>
 * Copyright (c) 2008, Damien Miller <djm@openbsd.org>
 * Copyright (c) 2013, Markus Friedl <markus@openbsd.org>
 * Copyright (c) 2014, Theo de Raadt <deraadt@openbsd.org>
 * Copyright (c) 2015, Sudhi Herle   <sudhi@herle.net>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef ___ARC4RANDOM_H_5000666_1462841354__
#define ___ARC4RANDOM_H_5000666_1462841354__ 1

    /* Provide C linkage for symbols declared here .. */
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

#include <stdint.h>
#include <sys/types.h>

/*
 * On OpenBSD - we should NOT use the same symbol names. OpenBSD
 * libc defines these, and the rest of libc uses this - from dynamic
 * loading, to malloc() to printf() etc.
 *
 * For some fun, don't redefine the names - and see what happens :-)
 */
#ifdef __OpenBSD__

#define arc4random          mt_arc4random
#define arc4random_uniform  mt_arc4random_uniform
#define arc4random_buf      mt_arc4random_buf

#endif /* __OpenBSD__ */


/*
 * Initialize generator with getentropy
 */
extern void arc4random_init(int (*) (void*, size_t));


/*
 * Generate and return a random 32-bit number
 */
extern uint32_t arc4random(void);


/*
 * Generate and return a uniformly random 32-bit quantity with an
 * upper bound of 'upper_bound'
 */
extern uint32_t arc4random_uniform(uint32_t upper_bound);


/*
 * Generate 'n' random bytes and put them in 'buf'.
 */
extern void arc4random_buf(void* buf, size_t n);

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* ! ___ARC4RANDOM_H_5000666_1462841354__ */

/* EOF */