The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/compat/svr4/svr4_ioctl.c

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*      $NetBSD: svr4_ioctl.c,v 1.35 2008/04/28 20:23:45 martin Exp $    */
    2 
    3 /*-
    4  * Copyright (c) 1994, 2008 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Christos Zoulas.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   29  * POSSIBILITY OF SUCH DAMAGE.
   30  */
   31 
   32 #include <sys/cdefs.h>
   33 __KERNEL_RCSID(0, "$NetBSD: svr4_ioctl.c,v 1.35 2008/04/28 20:23:45 martin Exp $");
   34 
   35 #include <sys/param.h>
   36 #include <sys/proc.h>
   37 #include <sys/systm.h>
   38 #include <sys/file.h>
   39 #include <sys/filedesc.h>
   40 #include <sys/ioctl.h>
   41 #include <sys/termios.h>
   42 #include <sys/tty.h>
   43 #include <sys/socket.h>
   44 #include <sys/mount.h>
   45 #include <net/if.h>
   46 #include <sys/malloc.h>
   47 
   48 #include <sys/syscallargs.h>
   49 
   50 #include <compat/sys/socket.h>
   51 
   52 #include <compat/svr4/svr4_types.h>
   53 #include <compat/svr4/svr4_util.h>
   54 #include <compat/svr4/svr4_signal.h>
   55 #include <compat/svr4/svr4_lwp.h>
   56 #include <compat/svr4/svr4_ucontext.h>
   57 #include <compat/svr4/svr4_syscallargs.h>
   58 #include <compat/svr4/svr4_stropts.h>
   59 #include <compat/svr4/svr4_ioctl.h>
   60 #include <compat/svr4/svr4_termios.h>
   61 #include <compat/svr4/svr4_ttold.h>
   62 #include <compat/svr4/svr4_filio.h>
   63 #include <compat/svr4/svr4_sockio.h>
   64 
   65 #ifdef DEBUG_SVR4
   66 static void svr4_decode_cmd(u_long, char *, char *, int *, int *);
   67 /*
   68  * Decode an ioctl command symbolically
   69  */
   70 static void
   71 svr4_decode_cmd(cmd, dir, c, num, argsiz)
   72         u_long            cmd;
   73         char             *dir, *c;
   74         int              *num, *argsiz;
   75 {
   76         if (cmd & SVR4_IOC_VOID)
   77                 *dir++ = 'V';
   78         if (cmd & SVR4_IOC_IN)
   79                 *dir++ = 'R';
   80         if (cmd & SVR4_IOC_OUT)
   81                 *dir++ = 'W';
   82         *dir = '\0';
   83         if (cmd & SVR4_IOC_INOUT)
   84                 *argsiz = (cmd >> 16) & 0xff;
   85         else
   86                 *argsiz = -1;
   87 
   88         *c = (cmd >> 8) & 0xff;
   89         *num = cmd & 0xff;
   90 }
   91 #endif
   92 
   93 int
   94 svr4_sys_ioctl(struct lwp *l, const struct svr4_sys_ioctl_args *uap, register_t *retval)
   95 {
   96         file_t          *fp;
   97         u_long           cmd;
   98         int              error;
   99         int (*fun)(file_t *, struct lwp *, register_t *, int, u_long, void *);
  100 #ifdef DEBUG_SVR4
  101         char             dir[4];
  102         char             c;
  103         int              num;
  104         int              argsiz;
  105 
  106         svr4_decode_cmd(SCARG(uap, com), dir, &c, &num, &argsiz);
  107 
  108         uprintf("svr4_ioctl(%d, _IO%s(%c, %d, %d), %p);\n", SCARG(uap, fd),
  109             dir, c, num, argsiz, SCARG(uap, data));
  110 #endif
  111         cmd = SCARG(uap, com);
  112 
  113         if ((fp = fd_getfile(SCARG(uap, fd))) == NULL)
  114                 return EBADF;
  115 
  116         if ((fp->f_flag & (FREAD | FWRITE)) == 0) {
  117                 error = EBADF;
  118                 goto out;
  119         }
  120 
  121         switch (cmd & 0xff00) {
  122         case SVR4_tIOC:
  123                 fun = svr4_ttold_ioctl;
  124                 break;
  125 
  126         case SVR4_TIOC:
  127                 fun = svr4_term_ioctl;
  128                 break;
  129 
  130         case SVR4_STR:
  131                 fun = svr4_stream_ioctl;
  132                 break;
  133 
  134         case SVR4_FIOC:
  135                 fun = svr4_fil_ioctl;
  136                 break;
  137 
  138         case SVR4_SIOC:
  139                 fun = svr4_sock_ioctl;
  140                 break;
  141 
  142         case SVR4_XIOC:
  143                 /* We do not support those */
  144                 error = EINVAL;
  145                 goto out;
  146 
  147         default:
  148                 DPRINTF(("Unimplemented ioctl %lx\n", cmd));
  149                 error = 0;      /* XXX: really ENOSYS */
  150                 goto out;
  151         }
  152 
  153         error = (*fun)(fp, l, retval, SCARG(uap, fd), cmd, SCARG(uap, data));
  154 out:
  155         fd_putfile(SCARG(uap, fd));
  156         return (error);
  157 }

Cache object: 0a44e623c7a65fb893171c29015fa71a


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.