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1911501c7d
Sponsored-by: https://despairlabs.com/sponsor/ Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rob Norris <robn@despairlabs.com> Closes #17861
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
// SPDX-License-Identifier: CDDL-1.0
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or https://opensource.org/licenses/CDDL-1.0.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
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* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
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* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
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* Copyright (c) 2012, Joyent, Inc. All rights reserved.
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*/
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#ifndef _SYS_RANDOM_H
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#define _SYS_RANDOM_H
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extern int random_get_bytes(uint8_t *ptr, size_t len);
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extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);
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static __inline__ uint32_t
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random_in_range(uint32_t range)
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{
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uint32_t r;
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ASSERT(range != 0);
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if (range == 1)
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return (0);
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(void) random_get_pseudo_bytes((uint8_t *)&r, sizeof (r));
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return (r % range);
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}
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#endif /* _SYS_RANDOM_H */
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