86 lines
2.8 KiB
C
86 lines
2.8 KiB
C
/* $NetBSD: freebsd_fork.c,v 1.9 2018/04/16 14:51:59 kamil Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2002 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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: freebsd_fork.c,v 1.9 2018/04/16 14:51:59 kamil Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/uio.h>
|
|
#include <sys/signal.h>
|
|
#include <sys/mount.h>
|
|
#include <sys/syscallargs.h>
|
|
|
|
#include <compat/sys/signal.h>
|
|
#include <compat/sys/signalvar.h>
|
|
|
|
#include <compat/freebsd/freebsd_syscallargs.h>
|
|
#include <compat/freebsd/freebsd_fork.h>
|
|
|
|
#include <compat/freebsd/freebsd_machdep.h>
|
|
|
|
/*
|
|
* rfork()
|
|
*/
|
|
int
|
|
freebsd_sys_rfork(struct lwp *l, const struct freebsd_sys_rfork_args *uap, register_t *retval)
|
|
{
|
|
/* {
|
|
syscallargs(int) flags;
|
|
} */
|
|
int flags;
|
|
|
|
flags = 0;
|
|
|
|
if ((SCARG(uap, flags)
|
|
& (FREEBSD_RFFDG | FREEBSD_RFCFDG))
|
|
== (FREEBSD_RFFDG | FREEBSD_RFCFDG))
|
|
return (EINVAL);
|
|
|
|
if ((SCARG(uap, flags) & FREEBSD_RFPROC) == 0)
|
|
return (EINVAL);
|
|
|
|
if (SCARG(uap, flags) & FREEBSD_RFNOWAIT)
|
|
flags |= FORK_NOWAIT;
|
|
if (SCARG(uap, flags) & FREEBSD_RFMEM)
|
|
flags |= FORK_SHAREVM;
|
|
if (SCARG(uap, flags) & FREEBSD_RFSIGSHARE)
|
|
flags |= FORK_SHARESIGS;
|
|
|
|
if (SCARG(uap, flags) & FREEBSD_RFCFDG)
|
|
flags |= FORK_CLEANFILES;
|
|
else if ((SCARG(uap, flags) & FREEBSD_RFFDG) == 0)
|
|
flags |= FORK_SHAREFILES;
|
|
|
|
return (fork1(l, flags,
|
|
SCARG(uap, flags) & FREEBSD_RFLINUXTHPN ? SIGUSR1 : SIGCHLD,
|
|
NULL, 0, NULL, NULL, retval));
|
|
}
|