NetBSD/sys/compat/darwin/darwin_unistd.c

86 lines
3.1 KiB
C

/* $NetBSD: darwin_unistd.c,v 1.8 2007/02/09 21:55:16 ad Exp $ */
/*-
* Copyright (c) 2003 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Emmanuel Dreyfus.
*
* 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: darwin_unistd.c,v 1.8 2007/02/09 21:55:16 ad Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/mount.h>
#include <sys/endian.h>
#include <sys/syscallargs.h>
#include <compat/sys/signal.h>
#include <compat/mach/mach_types.h>
#include <compat/mach/mach_vm.h>
#include <compat/darwin/darwin_audit.h>
#include <compat/darwin/darwin_syscallargs.h>
int
darwin_sys_lseek(l, v, retval)
struct lwp *l;
void *v;
register_t *retval;
{
struct darwin_sys_lseek_args *uap = v;
struct sys_lseek_args cup;
union {
off_t o;
u_long l[2];
} off;
SCARG(&cup, fd) = SCARG(uap, fd);
SCARG(&cup, whence) = SCARG(uap, whence);
/*
* NetBSD pads the syscallarg structure because of the
* off_t argument, Darwin does not. In order to get the off_t
* argument going through our syscall machinery, we declare
* it as two long arguments, and we reassemble them here.
*/
off.l[_QUAD_LOWWORD] = (u_long)SCARG(uap, off2);
off.l[_QUAD_HIGHWORD] = (u_long)SCARG(uap, off1);
SCARG(&cup, offset) = off.o;
return sys_lseek(l, &cup, retval);
}