sys/compat/linux/common/linux_oldselect.c

   1 /*      $NetBSD: linux_oldselect.c,v 1.57 2008/04/28 20:23:43 martin Exp $      */
   2
   3 /*-
   4  * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Frank van der Linden and Eric Haszlakiewicz.
   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: linux_oldselect.c,v 1.57 2008/04/28 20:23:43 martin Exp $");
  34
  35 #include <sys/param.h>
  36 #include <sys/systm.h>
  37 #include <sys/mount.h>
  38
  39 #include <sys/sched.h>
  40 #include <sys/syscallargs.h>
  41
  42 #include <compat/linux/common/linux_types.h>
  43 #include <compat/linux/common/linux_misc.h>
  44 #include <compat/linux/common/linux_mmap.h>
  45 #include <compat/linux/common/linux_signal.h>
  46 #include <compat/linux/common/linux_oldselect.h>
  47
  48 #include <compat/linux/linux_syscallargs.h>
  49
  50 /* Used on: arm, i386, m68k */
  51 /* Not used on: alpha, mips, ppc, sparc, sparc64 */
  52
  53 /*
  54  * Not sure why the arguments to this older version of select() were put
  55  * into a structure, because there are 5, and that can all be handled
  56  * in registers on the i386 like Linux wants to.
  57  */
  58 int
  59 linux_sys_oldselect(struct lwp *l, const struct linux_sys_oldselect_args *uap, register_t *retval)
  60 {
  61         /* {
  62                 syscallarg(struct linux_oldselect *) lsp;
  63         } */
  64         struct linux_oldselect ls;
  65         int error;
  66
  67         if ((error = copyin(SCARG(uap, lsp), &ls, sizeof(ls))))
  68                 return error;
  69
  70         return linux_select1(l, retval, ls.nfds, ls.readfds, ls.writefds,
  71             ls.exceptfds, ls.timeout);
  72 }
  73