sys/emulation/43bsd/43bsd_exit.c

   1 /*
   2  * 43BSD_EXIT.C         - 4.3BSD compatibility exit syscalls
   3  *
   4  * Copyright (c) 1982, 1986, 1989, 1991, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  * (c) UNIX System Laboratories, Inc.
   7  * All or some portions of this file are derived from material licensed
   8  * to the University of California by American Telephone and Telegraph
   9  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
  10  * the permission of UNIX System Laboratories, Inc.
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions
  14  * are met:
  15  * 1. Redistributions of source code must retain the above copyright
  16  *    notice, this list of conditions and the following disclaimer.
  17  * 2. Redistributions in binary form must reproduce the above copyright
  18  *    notice, this list of conditions and the following disclaimer in the
  19  *    documentation and/or other materials provided with the distribution.
  20  * 3. All advertising materials mentioning features or use of this software
  21  *    must display the following acknowledgement:
  22  *      This product includes software developed by the University of
  23  *      California, Berkeley and its contributors.
  24  * 4. Neither the name of the University nor the names of its contributors
  25  *    may be used to endorse or promote products derived from this software
  26  *    without specific prior written permission.
  27  *
  28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  38  * SUCH DAMAGE.
  39  *
  40  * $DragonFly: src/sys/emulation/43bsd/43bsd_exit.c,v 1.2 2006/06/05 07:26:07 dillon Exp $
  41  *      from: DragonFly kern/kern_exit.c,v 1.26
  42  *
  43  * These syscalls used to live in kern/kern_exit.c.  They are modified
  44  * to use the new split syscalls.
  45  */
  46
  47 #include "opt_compat.h"
  48
  49 #include <sys/param.h>
  50 #include <sys/systm.h>
  51 #include <sys/sysproto.h>
  52 #include <sys/conf.h>
  53 #include <sys/kernel.h>
  54 #include <sys/kern_syscall.h>
  55 #include <sys/proc.h>
  56 #include <sys/wait.h>
  57
  58 /*
  59  * owait()
  60  *
  61  * owait_args(int dummy)
  62  */
  63 int
  64 sys_owait(struct owait_args *uap)
  65 {
  66         int error, status;
  67         int res = 0;
  68
  69         error = kern_wait(WAIT_ANY, &status, 0, NULL, &res);
  70         uap->sysmsg_fds[0] = res;
  71
  72         if (error == 0)
  73                 uap->sysmsg_fds[1] = status;
  74         return (error);
  75 }