76 lines
2.7 KiB
C
76 lines
2.7 KiB
C
/* $NetBSD: darwin_unistd.c,v 1.12 2009/01/11 02:45:47 christos Exp $ */
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/*-
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* Copyright (c) 2003 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Emmanuel Dreyfus.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: darwin_unistd.c,v 1.12 2009/01/11 02:45:47 christos Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/mount.h>
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#include <sys/endian.h>
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#include <sys/syscallargs.h>
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#include <compat/sys/signal.h>
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#include <compat/mach/mach_types.h>
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#include <compat/mach/mach_vm.h>
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#include <compat/darwin/darwin_types.h>
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#include <compat/darwin/darwin_audit.h>
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#include <compat/darwin/darwin_syscallargs.h>
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int
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darwin_sys_lseek(struct lwp *l, const struct darwin_sys_lseek_args *uap, register_t *retval)
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{
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struct sys_lseek_args cup;
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union {
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off_t o;
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u_long l[2];
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} off;
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SCARG(&cup, fd) = SCARG(uap, fd);
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SCARG(&cup, whence) = SCARG(uap, whence);
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/*
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* NetBSD pads the syscallarg structure because of the
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* off_t argument, Darwin does not. In order to get the off_t
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* argument going through our syscall machinery, we declare
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* it as two long arguments, and we reassemble them here.
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*/
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off.l[_QUAD_LOWWORD] = (u_long)SCARG(uap, off2);
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off.l[_QUAD_HIGHWORD] = (u_long)SCARG(uap, off1);
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SCARG(&cup, offset) = off.o;
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return sys_lseek(l, &cup, retval);
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}
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