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ioctl.c
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1996-09-28
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71 lines
/*
* This file is part of ixemul.library for the Amiga.
* Copyright (C) 1991, 1992 Markus M. Wild
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* ioctl.c,v 1.1.1.1 1994/04/04 04:30:26 amiga Exp
*
* ioctl.c,v
* Revision 1.1.1.1 1994/04/04 04:30:26 amiga
* Initial CVS check in.
*
* Revision 1.1 1992/05/14 19:55:40 mwild
* Initial revision
*
*/
#define _KERNEL
#include "ixemul.h"
#include "kprintf.h"
#include <sys/ioctl.h>
#include <stdarg.h>
int
ioctl (int fd, unsigned long cmd, ...)
{
struct file *f = u.u_ofile[fd];
va_list ap;
void *arg;
/* if this is an open fd */
if (fd >= 0 && fd < NOFILE && f)
if (f->f_ioctl)
{
/* split the ioctl-cmd into its subparts */
int arglen, inout;
inout = cmd >> 30; /* this ignores IOC_VOID */
arglen = (cmd >> 16) & IOCPARM_MASK;
va_start(ap, cmd);
arg = va_arg(ap, void *);
return (*f->f_ioctl)(f, cmd, inout, arglen, arg);
}
else
{
errno = EIO;
KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));
}
else
{
errno = EBADF;
KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));
}
return -1;
}