86 lines
2.8 KiB
C
86 lines
2.8 KiB
C
/* $NetBSD: freebsd_fork.c,v 1.7 2008/04/28 20:23:41 martin Exp $ */
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/*-
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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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: freebsd_fork.c,v 1.7 2008/04/28 20:23:41 martin 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/errno.h>
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#include <sys/uio.h>
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#include <sys/signal.h>
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#include <sys/mount.h>
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#include <sys/syscallargs.h>
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#include <compat/sys/signal.h>
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#include <compat/sys/signalvar.h>
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#include <compat/freebsd/freebsd_syscallargs.h>
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#include <compat/freebsd/freebsd_fork.h>
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#include <machine/freebsd_machdep.h>
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/*
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* rfork()
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*/
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int
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freebsd_sys_rfork(struct lwp *l, const struct freebsd_sys_rfork_args *uap, register_t *retval)
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{
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/* {
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syscallargs(int) flags;
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} */
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int flags;
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flags = 0;
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if ((SCARG(uap, flags)
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& (FREEBSD_RFFDG | FREEBSD_RFCFDG))
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== (FREEBSD_RFFDG | FREEBSD_RFCFDG))
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return (EINVAL);
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if ((SCARG(uap, flags) & FREEBSD_RFPROC) == 0)
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return (EINVAL);
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if (SCARG(uap, flags) & FREEBSD_RFNOWAIT)
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flags |= FORK_NOWAIT;
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if (SCARG(uap, flags) & FREEBSD_RFMEM)
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flags |= FORK_SHAREVM;
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if (SCARG(uap, flags) & FREEBSD_RFSIGSHARE)
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flags |= FORK_SHARESIGS;
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if (SCARG(uap, flags) & FREEBSD_RFCFDG)
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flags |= FORK_CLEANFILES;
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else if ((SCARG(uap, flags) & FREEBSD_RFFDG) == 0)
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flags |= FORK_SHAREFILES;
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return (fork1(l, flags,
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SCARG(uap, flags) & FREEBSD_RFLINUXTHPN ? SIGUSR1 : SIGCHLD,
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NULL, 0, NULL, NULL, retval, NULL));
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}
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