93 lines
3.2 KiB
C
93 lines
3.2 KiB
C
/* $NetBSD: linux_llseek.c,v 1.25 1998/10/04 00:02:36 fvdl Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Frank van der Linden and Eric Haszlakiewicz.
|
|
*
|
|
* 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/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/mount.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/conf.h>
|
|
|
|
#include <sys/syscallargs.h>
|
|
|
|
#include <compat/linux/common/linux_types.h>
|
|
#include <compat/linux/common/linux_signal.h>
|
|
#include <compat/linux/common/linux_fcntl.h>
|
|
#include <compat/linux/common/linux_util.h>
|
|
|
|
#include <compat/linux/linux_syscallargs.h>
|
|
|
|
/* Used on: arm, i386, m68k, mips, ppc, sparc */
|
|
/* Not used on: alpha, sparc64 */
|
|
|
|
/*
|
|
* This appears to be part of a Linux attempt to switch to 64 bits file sizes.
|
|
*/
|
|
int
|
|
linux_sys_llseek(p, v, retval)
|
|
struct proc *p;
|
|
void *v;
|
|
register_t *retval;
|
|
{
|
|
struct linux_sys_llseek_args /* {
|
|
syscallarg(int) fd;
|
|
syscallarg(uint32_t) ohigh;
|
|
syscallarg(uint32_t) olow;
|
|
syscallarg(caddr_t) res;
|
|
syscallarg(int) whence;
|
|
} */ *uap = v;
|
|
struct sys_lseek_args bla;
|
|
int error;
|
|
off_t off;
|
|
|
|
off = SCARG(uap, olow) | (((off_t) SCARG(uap, ohigh)) << 32);
|
|
|
|
SCARG(&bla, fd) = SCARG(uap, fd);
|
|
SCARG(&bla, offset) = off;
|
|
SCARG(&bla, whence) = SCARG(uap, whence);
|
|
|
|
if ((error = sys_lseek(p, &bla, retval)))
|
|
return error;
|
|
|
|
if ((error = copyout(retval, SCARG(uap, res), sizeof (off_t))))
|
|
return error;
|
|
|
|
retval[0] = 0;
|
|
return 0;
|
|
}
|