svr4_filio.c

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    1 /*      $NetBSD: svr4_filio.c,v 1.14 2005/12/11 12:20:26 christos Exp $  */
    2 
    3 /*-
    4  * Copyright (c) 1994 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  * 3. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *        This product includes software developed by the NetBSD
   21  *        Foundation, Inc. and its contributors.
   22  * 4. Neither the name of The NetBSD Foundation nor the names of its
   23  *    contributors may be used to endorse or promote products derived
   24  *    from this software without specific prior written permission.
   25  *
   26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   36  * POSSIBILITY OF SUCH DAMAGE.
   37  */
   38 
   39 #include <sys/cdefs.h>
   40 __KERNEL_RCSID(0, "$NetBSD: svr4_filio.c,v 1.14 2005/12/11 12:20:26 christos Exp $");
   41 
   42 #include <sys/param.h>
   43 #include <sys/proc.h>
   44 #include <sys/systm.h>
   45 #include <sys/file.h>
   46 #include <sys/filedesc.h>
   47 #include <sys/ioctl.h>
   48 #include <sys/termios.h>
   49 #include <sys/tty.h>
   50 #include <sys/socket.h>
   51 #include <sys/ioctl.h>
   52 #include <sys/mount.h>
   53 #include <net/if.h>
   54 #include <sys/malloc.h>
   55 
   56 #include <sys/sa.h>
   57 #include <sys/syscallargs.h>
   58 
   59 #include <compat/svr4/svr4_types.h>
   60 #include <compat/svr4/svr4_util.h>
   61 #include <compat/svr4/svr4_signal.h>
   62 #include <compat/svr4/svr4_lwp.h>
   63 #include <compat/svr4/svr4_ucontext.h>
   64 #include <compat/svr4/svr4_syscallargs.h>
   65 #include <compat/svr4/svr4_stropts.h>
   66 #include <compat/svr4/svr4_ioctl.h>
   67 #include <compat/svr4/svr4_filio.h>
   68 
   69 
   70 int
   71 svr4_fil_ioctl(fp, l, retval, fd, cmd, data)
   72         struct file *fp;
   73         struct lwp *l;
   74         register_t *retval;
   75         int fd;
   76         u_long cmd;
   77         caddr_t data;
   78 {
   79         struct proc *p = l->l_proc;
   80         int error;
   81         int num;
   82         struct filedesc *fdp = p->p_fd;
   83         int (*ctl)(struct file *, u_long,  void *, struct lwp *) =
   84                         fp->f_ops->fo_ioctl;
   85 
   86         *retval = 0;
   87 
   88         if ((fp = fd_getfile(fdp, fd)) == NULL)
   89                 return EBADF;
   90         switch (cmd) {
   91         case SVR4_FIOCLEX:
   92                 fdp->fd_ofileflags[fd] |= UF_EXCLOSE;
   93                 return 0;
   94 
   95         case SVR4_FIONCLEX:
   96                 fdp->fd_ofileflags[fd] &= ~UF_EXCLOSE;
   97                 return 0;
   98 
   99         case SVR4_FIOGETOWN:
  100         case SVR4_FIOSETOWN:
  101         case SVR4_FIOASYNC:
  102         case SVR4_FIONBIO:
  103         case SVR4_FIONREAD:
  104                 if ((error = copyin(data, &num, sizeof(num))) != 0)
  105                         return error;
  106 
  107                 switch (cmd) {
  108                 case SVR4_FIOGETOWN:    cmd = FIOGETOWN; break;
  109                 case SVR4_FIOSETOWN:    cmd = FIOSETOWN; break;
  110                 case SVR4_FIOASYNC:     cmd = FIOASYNC;  break;
  111                 case SVR4_FIONBIO:      cmd = FIONBIO;   break;
  112                 case SVR4_FIONREAD:     cmd = FIONREAD;  break;
  113                 }
  114 
  115                 error = (*ctl)(fp, cmd, (caddr_t) &num, l);
  116 
  117                 if (error)
  118                         return error;
  119 
  120                 return copyout(&num, data, sizeof(num));
  121 
  122         default:
  123                 DPRINTF(("Unknown svr4 filio %lx\n", cmd));
  124                 return 0;       /* ENOSYS really */
  125         }
  126 }

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FreeBSD/Linux Kernel Cross Reference sys/compat/svr4/svr4_filio.c

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sys/compat/svr4/svr4_filio.c