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-.\" -*- nroff -*-
-.\"
-.\" Copyright (c) 1996 Doug Rabson
-.\"
-.\" All rights reserved.
-.\"
-.\" This program is free software.
-.\"
-.\" 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 DEVELOPERS ``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 DEVELOPERS 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.
-.\"
-.\" $Id: VOP_BLKATOFF.9,v 1.2 1997/04/13 14:48:50 bde Exp $
-.\"
-.Dd July 24, 1996
-.Os
-.Dt VOP_BLKATOFF 9
-.Sh NAME
-.Nm VOP_BLKATOFF
-.Nd return a filesystem buffer for part of a file
-.Sh SYNOPSIS
-.Fd #include <sys/param.h>
-.Fd #include <sys/vnode.h>
-.Fd #include <sys/buf.h>
-.Ft int
-.Fn VOP_BLKATOFF "struct vnode *vp" "off_t offset" "char **res" "struct buf **bpp"
-.Sh DESCRIPTION
-.Pp
-The arguments are:
-.Bl -tag -width offset
-.It Ar vp
-The vnode representing the file.
-.It Ar offset
-The byte offset into the file where the buffer should start.
-.It Ar res
-Return parameter for a pointer to the last valid byte in the buffer.
-.It Ar bpp
-Return parameter for the buffer.
-.El
-.Pp
-Return buffer with the contents of block
-.Fa offset
-from the beginning of file
-.Fa ip .
-.Fa res
-is non-zero, fill it in with a pointer to the
-remaining space in the directory.
-.Pp
-This call is only used internally by the UFS filesystem.
-.Sh RETURN VALUES
-Zero is returned on success, otherwise an error is returned.
-.Sh SEE ALSO
-.Xr buf 9 ,
-.Xr vnode 9
-.Sh AUTHORS
-This man page was written by Doug Rabson.
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