xnu-3789.41.3.tar.gz

[apple/xnu.git] / bsd / sys / random.h

/*
 * Copyright (c) 1999, 2000-2005 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */

#ifndef __SYS_RANDOM_H__
#define __SYS_RANDOM_H__

#include <sys/appleapiopts.h>
#include <sys/cdefs.h>

#ifndef KERNEL
__BEGIN_DECLS

int getentropy(void* buffer, size_t size);
__END_DECLS

#else /* KERNEL */
#ifdef __APPLE_API_UNSTABLE
__BEGIN_DECLS
void read_random(void* buffer, u_int numBytes);
void read_frandom(void* buffer, u_int numBytes);
int  write_random(void* buffer, u_int numBytes);
__END_DECLS
#endif /* __APPLE_API_UNSTABLE */

#endif /* KERNEL */
#endif /* __SYS_RANDOM_H__ */