1 .\" $NetBSD: access.9,v 1.1 1996/06/16 10:38:35 pk Exp $
3 .\" Copyright (c) 1996 The NetBSD Foundation, Inc.
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6 .\" This code is derived from software contributed to The NetBSD Foundation
7 .\" by Paul Kranenburg.
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38 .Nd check memory regions for accessibility
45 .Fn kernacc "void *addr" "int len" "int rw"
47 .Fn useracc "void *addr" "int len" "int rw"
53 functions check whether operations of the type specified in
55 are permitted in the range of virtual addresses given by
59 The possible values of
61 are any bitwise combination of
67 checks addresses in the kernel address space, while
71 to represent an user space address.
72 The process context to use for this
73 operation is taken from the global variable
76 Both functions return boolean true if the type of access specified
80 Otherwise boolean false is returned.
82 The process pointer should be passed in as an argument to