NetBSD/sys/compat/svr4/svr4_filio.c

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/* $NetBSD: svr4_filio.c,v 1.13 2004/10/27 19:29:57 david Exp $ */
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/*-
* Copyright (c) 1994 The NetBSD Foundation, Inc.
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* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
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* 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.
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*
* 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.
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*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: svr4_filio.c,v 1.13 2004/10/27 19:29:57 david Exp $");
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#include <sys/param.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/ioctl.h>
#include <sys/termios.h>
#include <sys/tty.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <net/if.h>
#include <sys/malloc.h>
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#include <sys/sa.h>
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#include <sys/syscallargs.h>
#include <compat/svr4/svr4_types.h>
#include <compat/svr4/svr4_util.h>
#include <compat/svr4/svr4_signal.h>
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#include <compat/svr4/svr4_lwp.h>
#include <compat/svr4/svr4_ucontext.h>
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#include <compat/svr4/svr4_syscallargs.h>
#include <compat/svr4/svr4_stropts.h>
#include <compat/svr4/svr4_ioctl.h>
#include <compat/svr4/svr4_filio.h>
int
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svr4_fil_ioctl(fp, l, retval, fd, cmd, data)
struct file *fp;
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struct lwp *l;
register_t *retval;
int fd;
u_long cmd;
caddr_t data;
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{
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struct proc *p = l->l_proc;
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int error;
int num;
struct filedesc *fdp = p->p_fd;
int (*ctl)(struct file *, u_long, void *, struct proc *) =
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fp->f_ops->fo_ioctl;
*retval = 0;
if ((fp = fd_getfile(fdp, fd)) == NULL)
return EBADF;
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switch (cmd) {
case SVR4_FIOCLEX:
fdp->fd_ofileflags[fd] |= UF_EXCLOSE;
return 0;
case SVR4_FIONCLEX:
fdp->fd_ofileflags[fd] &= ~UF_EXCLOSE;
return 0;
case SVR4_FIOGETOWN:
case SVR4_FIOSETOWN:
case SVR4_FIOASYNC:
case SVR4_FIONBIO:
case SVR4_FIONREAD:
if ((error = copyin(data, &num, sizeof(num))) != 0)
return error;
switch (cmd) {
case SVR4_FIOGETOWN: cmd = FIOGETOWN; break;
case SVR4_FIOSETOWN: cmd = FIOSETOWN; break;
case SVR4_FIOASYNC: cmd = FIOASYNC; break;
case SVR4_FIONBIO: cmd = FIONBIO; break;
case SVR4_FIONREAD: cmd = FIONREAD; break;
}
error = (*ctl)(fp, cmd, (caddr_t) &num, p);
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if (error)
return error;
return copyout(&num, data, sizeof(num));
default:
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DPRINTF(("Unknown svr4 filio %lx\n", cmd));
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return 0; /* ENOSYS really */
}
}