FreeBSD/Linux Kernel Cross Reference
sys/sys/random.h

     /*      $NetBSD: random.h,v 1.1 2020/08/14 00:53:16 riastradh Exp $     */
     
     /*-
      * Copyright (c) 2020 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Taylor R. Campbell.
      *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     * POSSIBILITY OF SUCH DAMAGE.
     */
    
    #ifndef _SYS_RANDOM_H
    #define _SYS_RANDOM_H
    
    #include <sys/cdefs.h>
    
    #include <machine/ansi.h>       /* _BSD_SIZE_T_ */
    
    #define GRND_NONBLOCK   (1u << 0)
    #define GRND_RANDOM     (1u << 1)
    #define GRND_INSECURE   (1u << 2)
    
    #ifdef _KERNEL
    
    struct uio;
    
    int     dogetrandom(struct uio *, unsigned int);
    
    #endif  /* _KERNEL */
    
    #ifndef _KERNEL
    __BEGIN_DECLS
    
    #ifdef  _BSD_SIZE_T_
    typedef _BSD_SIZE_T_    size_t;
    #undef  _BSD_SIZE_T_
    #endif
    
    #ifdef  _BSD_SSIZE_T_
    typedef _BSD_SSIZE_T_   ssize_t;
    #undef  _BSD_SSIZE_T_
    #endif
    
    ssize_t getrandom(void *, size_t, unsigned int);
    
    __END_DECLS
    #endif  /* !_KERNEL */
    
    #endif  /* _SYS_RANDOM_H */

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