NetBSD/sys/compat/svr4/svr4_filio.c

115 lines
3.4 KiB
C

/* $NetBSD: svr4_filio.c,v 1.23 2009/05/24 21:41:25 ad Exp $ */
/*-
* Copyright (c) 1994, 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* 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: svr4_filio.c,v 1.23 2009/05/24 21:41:25 ad Exp $");
#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/mount.h>
#include <net/if.h>
#include <sys/malloc.h>
#include <sys/syscallargs.h>
#include <compat/svr4/svr4_types.h>
#include <compat/svr4/svr4_util.h>
#include <compat/svr4/svr4_signal.h>
#include <compat/svr4/svr4_lwp.h>
#include <compat/svr4/svr4_ucontext.h>
#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
svr4_fil_ioctl(file_t *fp, struct lwp *l, register_t *retval, int fd, u_long cmd, void *data)
{
struct proc *p = l->l_proc;
int error;
int num;
filedesc_t *fdp = p->p_fd;
fdfile_t *ff;
int (*ctl)(file_t *, u_long, void *) = fp->f_ops->fo_ioctl;
*retval = 0;
error = 0;
if ((fp = fd_getfile(fd)) == NULL)
return EBADF;
ff = fdp->fd_dt->dt_ff[fd];
switch (cmd) {
case SVR4_FIOCLEX:
ff->ff_exclose = true;
fdp->fd_exclose = true;
break;
case SVR4_FIONCLEX:
ff->ff_exclose = false;
break;
case SVR4_FIOGETOWN:
case SVR4_FIOSETOWN:
case SVR4_FIOASYNC:
case SVR4_FIONBIO:
case SVR4_FIONREAD:
if ((error = copyin(data, &num, sizeof(num))) != 0)
break;
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, &num);
if (error == 0)
error = copyout(&num, data, sizeof(num));
break;
default:
DPRINTF(("Unknown svr4 filio %lx\n", cmd));
break;
}
fd_putfile(fd);
return error;
}