1996-10-12 04:36:56 +04:00
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.\" $NetBSD: kvm_getfiles.3,v 1.4 1996/10/12 00:36:56 cgd Exp $
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1996-03-19 01:33:07 +03:00
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.\"
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1994-05-09 07:15:36 +04:00
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.\" Copyright (c) 1992, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" This code is derived from software developed by the Computer Systems
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.\" Engineering group at Lawrence Berkeley Laboratory under DARPA contract
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.\" BG 91-66 and contributed to Berkeley.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)kvm_getfiles.3 8.2 (Berkeley) 4/19/94
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.\"
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.Dd April 19, 1994
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.Dt KVM_GETFILES 3
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.Os
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.Sh NAME
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.Nm kvm_getfiles
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.Nd survey open files
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.Sh SYNOPSIS
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.Fd #include <kvm.h>
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.Fd #include <sys/kinfo.h>
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1995-03-28 21:29:16 +04:00
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.Fd #define _KERNEL
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1994-05-09 07:15:36 +04:00
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.Fd #include <sys/file.h>
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1995-03-28 21:29:16 +04:00
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.Fd #undef _KERNEL
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1994-05-09 07:15:36 +04:00
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.\" .Fa kvm_t *kd
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.br
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.Ft char *
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.Fn kvm_getfiles "kvm_t *kd" "int op" "int arg" "int *cnt"
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.Sh DESCRIPTION
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.Fn kvm_getfiles
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returns a (sub-)set of the open files in the kernel indicated by
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.Fa kd.
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The
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.Fa op
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and
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.Fa arg
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arguments constitute a predicate which limits the set of files
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returned. No predicates are currently defined.
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.Pp
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The number of processes found is returned in the reference parameter
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.Fa cnt .
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The files are returned as a contiguous array of file structures,
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preceded by the address of the first file entry in the kernel.
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This memory is owned by kvm and is not guaranteed to be persistent across
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subsequent kvm library calls. Data should be copied out if it needs to be
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saved.
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.Sh RETURN VALUES
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.Fn kvm_getfiles
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1996-10-12 04:36:56 +04:00
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will return
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.Dv NULL
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on failure.
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1994-05-09 07:15:36 +04:00
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.Pp
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.Sh BUGS
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This routine does not belong in the kvm interface.
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.Sh SEE ALSO
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.Xr kvm 3 ,
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.Xr kvm_open 3 ,
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.Xr kvm_openfiles 3 ,
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.Xr kvm_close 3 ,
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.Xr kvm_read 3 ,
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.Xr kvm_write 3 ,
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.Xr kvm_nlist 3 ,
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.Xr kvm_geterr 3
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