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


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FreeBSD/Linux Kernel Cross Reference
sys/emulation/43bsd/43bsd_exit.c

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    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. Neither the name of the University nor the names of its contributors
   21  *    may be used to endorse or promote products derived from this software
   22  *    without specific prior written permission.
   23  *
   24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   34  * SUCH DAMAGE.
   35  *
   36  * $DragonFly: src/sys/emulation/43bsd/43bsd_exit.c,v 1.2 2006/06/05 07:26:07 dillon Exp $
   37  *      from: DragonFly kern/kern_exit.c,v 1.26
   38  *
   39  * These syscalls used to live in kern/kern_exit.c.  They are modified
   40  * to use the new split syscalls.
   41  */
   42 
   43 #include "opt_compat.h"
   44 
   45 #include <sys/param.h>
   46 #include <sys/systm.h>
   47 #include <sys/sysproto.h>
   48 #include <sys/conf.h>
   49 #include <sys/kernel.h>
   50 #include <sys/kern_syscall.h>
   51 #include <sys/proc.h>
   52 #include <sys/wait.h>
   53 
   54 /*
   55  * owait()
   56  *
   57  * owait_args(int dummy)
   58  *
   59  * MPSAFE
   60  */
   61 int
   62 sys_owait(struct owait_args *uap)
   63 {
   64         int error, status;
   65         int res = 0;
   66 
   67         error = kern_wait(WAIT_ANY, &status, 0, NULL, &res);
   68         uap->sysmsg_fds[0] = res;
   69 
   70         if (error == 0)
   71                 uap->sysmsg_fds[1] = status;
   72         return (error);
   73 }

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