145 lines
3.9 KiB
C
145 lines
3.9 KiB
C
/* $NetBSD: svr4_ioctl.c,v 1.16 1996/04/11 12:54:41 christos Exp $ */
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/*
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* Copyright (c) 1994 Christos Zoulas
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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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/proc.h>
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#include <sys/systm.h>
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#include <sys/file.h>
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#include <sys/filedesc.h>
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#include <sys/ioctl.h>
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#include <sys/termios.h>
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#include <sys/tty.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/mount.h>
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#include <net/if.h>
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#include <sys/malloc.h>
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#include <sys/syscallargs.h>
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#include <compat/svr4/svr4_types.h>
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#include <compat/svr4/svr4_util.h>
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#include <compat/svr4/svr4_signal.h>
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#include <compat/svr4/svr4_syscallargs.h>
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#include <compat/svr4/svr4_stropts.h>
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#include <compat/svr4/svr4_ioctl.h>
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#include <compat/svr4/svr4_termios.h>
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#include <compat/svr4/svr4_ttold.h>
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#include <compat/svr4/svr4_filio.h>
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#include <compat/svr4/svr4_sockio.h>
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#ifdef DEBUG_SVR4
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static void svr4_decode_cmd __P((u_long, char *, char *, int *, int *));
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/*
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* Decode an ioctl command symbolically
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*/
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static void
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svr4_decode_cmd(cmd, dir, c, num, argsiz)
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u_long cmd;
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char *dir, *c;
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int *num, *argsiz;
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{
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if (cmd & SVR4_IOC_VOID)
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*dir++ = 'V';
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if (cmd & SVR4_IOC_IN)
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*dir++ = 'R';
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if (cmd & SVR4_IOC_OUT)
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*dir++ = 'W';
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*dir = '\0';
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if (cmd & SVR4_IOC_INOUT)
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*argsiz = (cmd >> 16) & 0xff;
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else
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*argsiz = -1;
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*c = (cmd >> 8) & 0xff;
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*num = cmd & 0xff;
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}
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#endif
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int
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svr4_sys_ioctl(p, v, retval)
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register struct proc *p;
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void *v;
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register_t *retval;
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{
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struct svr4_sys_ioctl_args *uap = v;
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struct file *fp;
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struct filedesc *fdp;
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u_long cmd;
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int (*fun) __P((struct file *, struct proc *, register_t *,
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int, u_long, caddr_t));
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#ifdef DEBUG_SVR4
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char dir[4];
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char c;
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int num;
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int argsiz;
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svr4_decode_cmd(SCARG(uap, com), dir, &c, &num, &argsiz);
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printf("svr4_ioctl(%d, _IO%s(%c, %d, %d), %p);\n", SCARG(uap, fd),
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dir, c, num, argsiz, SCARG(uap, data));
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#endif
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fdp = p->p_fd;
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cmd = SCARG(uap, com);
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if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles ||
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(fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL)
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return EBADF;
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if ((fp->f_flag & (FREAD | FWRITE)) == 0)
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return EBADF;
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switch (cmd & 0xff00) {
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case SVR4_tIOC:
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fun = svr4_ttold_ioctl;
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break;
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case SVR4_TIOC:
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fun = svr4_term_ioctl;
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break;
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case SVR4_STR:
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fun = svr4_stream_ioctl;
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break;
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case SVR4_FIOC:
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fun = svr4_fil_ioctl;
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break;
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case SVR4_SIOC:
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fun = svr4_sock_ioctl;
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break;
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default:
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DPRINTF(("Unimplemented ioctl %lx\n", cmd));
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return 0; /* XXX: really ENOSYS */
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}
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return (*fun)(fp, p, retval, SCARG(uap, fd), cmd, SCARG(uap, data));
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}
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