From NetBSD: merge of 960317

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diff --git a/lib/libkvm.old/kvm_getfiles.3 b/lib/libkvm.old/kvm_getfiles.3
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+.\"	$OpenBSD: kvm_getfiles.3,v 1.1 1996/03/19 23:15:32 niklas Exp $
+.\"
+.\" Copyright (c) 1992, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software developed by the Computer Systems
+.\" Engineering group at Lawrence Berkeley Laboratory under DARPA contract
+.\" BG 91-66 and contributed to Berkeley.
+.\"
+.\" 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.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+.\"
+.\"     @(#)kvm_getfiles.3	8.2 (Berkeley) 4/19/94
+.\"
+.Dd April 19, 1994
+.Dt KVM_GETFILES 3
+.Os
+.Sh NAME
+.Nm kvm_getfiles
+.Nd survey open files
+.Sh SYNOPSIS
+.Fd #include <kvm.h>
+.Fd #include <sys/kinfo.h>
+.Fd #define _KERNEL
+.Fd #include <sys/file.h>
+.Fd #undef _KERNEL
+.\" .Fa kvm_t *kd
+.br
+.Ft char *
+.Fn kvm_getfiles "kvm_t *kd" "int op" "int arg" "int *cnt"
+.Sh DESCRIPTION
+.Fn kvm_getfiles
+returns a (sub-)set of the open files in the kernel indicated by
+.Fa kd.
+The
+.Fa op
+and
+.Fa arg
+arguments constitute a predicate which limits the set of files
+returned.  No predicates are currently defined.
+.Pp
+The number of processes found is returned in the reference parameter
+.Fa cnt .
+The files are returned as a contiguous array of file structures,
+preceded by the address of the first file entry in the kernel.
+This memory is owned by kvm and is not guaranteed to be persistent across
+subsequent kvm library calls.  Data should be copied out if it needs to be
+saved.
+.Sh RETURN VALUES
+.Fn kvm_getfiles
+will return NULL on failure.
+.Pp
+.Sh BUGS
+This routine does not belong in the kvm interface.
+.Sh SEE ALSO
+.Xr kvm 3 ,
+.Xr kvm_open 3 ,
+.Xr kvm_openfiles 3 ,
+.Xr kvm_close 3 ,
+.Xr kvm_read 3 ,
+.Xr kvm_write 3 ,
+.Xr kvm_nlist 3 ,
+.Xr kvm_geterr 3