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      1 /*	$NetBSD: random.h,v 1.1 2020/08/14 00:53:16 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2020 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Taylor R. Campbell.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef	_SYS_RANDOM_H
     33 #define	_SYS_RANDOM_H
     34 
     35 #include <sys/cdefs.h>
     36 
     37 #include <machine/ansi.h>	/* _BSD_SIZE_T_ */
     38 
     39 #define	GRND_NONBLOCK	(1u << 0)
     40 #define	GRND_RANDOM	(1u << 1)
     41 #define	GRND_INSECURE	(1u << 2)
     42 
     43 #ifdef _KERNEL
     44 
     45 struct uio;
     46 
     47 int	dogetrandom(struct uio *, unsigned int);
     48 
     49 #endif	/* _KERNEL */
     50 
     51 #ifndef _KERNEL
     52 __BEGIN_DECLS
     53 
     54 #ifdef	_BSD_SIZE_T_
     55 typedef	_BSD_SIZE_T_	size_t;
     56 #undef	_BSD_SIZE_T_
     57 #endif
     58 
     59 #ifdef	_BSD_SSIZE_T_
     60 typedef	_BSD_SSIZE_T_	ssize_t;
     61 #undef	_BSD_SSIZE_T_
     62 #endif
     63 
     64 ssize_t	getrandom(void *, size_t, unsigned int);
     65 
     66 __END_DECLS
     67 #endif	/* !_KERNEL */
     68 
     69 #endif	/* _SYS_RANDOM_H */
     70