85 lines
2.8 KiB
C
85 lines
2.8 KiB
C
/* $NetBSD: procfs_fd.c,v 1.5 2003/06/29 22:31:45 fvdl Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2003 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Christos Zoulas.
|
|
*
|
|
* 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 NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation 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 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.
|
|
*/
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: procfs_fd.c,v 1.5 2003/06/29 22:31:45 fvdl Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/time.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/vnode.h>
|
|
#include <sys/file.h>
|
|
#include <sys/filedesc.h>
|
|
#include <miscfs/procfs/procfs.h>
|
|
|
|
int
|
|
procfs_dofd(curp, p, pfs, uio)
|
|
struct proc *curp;
|
|
struct proc *p;
|
|
struct pfsnode *pfs;
|
|
struct uio *uio;
|
|
{
|
|
int error;
|
|
struct file *fp;
|
|
struct proc *pown;
|
|
off_t offs;
|
|
|
|
if ((error = procfs_getfp(pfs, &pown, &fp)) != 0)
|
|
return error;
|
|
|
|
FILE_USE(fp);
|
|
|
|
offs = fp->f_offset;
|
|
|
|
switch (uio->uio_rw) {
|
|
case UIO_READ:
|
|
error = (*fp->f_ops->fo_read)(fp, &offs, uio, curp->p_ucred, 0);
|
|
break;
|
|
case UIO_WRITE:
|
|
error = (*fp->f_ops->fo_write)(fp, &offs, uio, curp->p_ucred,0);
|
|
break;
|
|
default:
|
|
panic("bad uio op");
|
|
}
|
|
|
|
FILE_UNUSE(fp, pown);
|
|
|
|
return (error);
|
|
}
|