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/*-
* Copyright (c) 1991 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Van Jacobson and Steven McCanne of Lawrence Berkeley Laboratory.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)wait.h 6.3 (Berkeley) 5/8/91
*/
/* Define how to access the structure that the wait system call stores.
On many systems, there is a structure defined for this.
But on vanilla-ish USG systems there is not. */
#ifndef HAVE_WAIT_STRUCT
#define WAITTYPE int
#define WIFSTOPPED(w) (((w)&0377) == 0177)
#define WIFSIGNALED(w) (((w)&0377) != 0177 && ((w)&~0377) == 0)
#define WIFEXITED(w) (((w)&0377) == 0)
#define WEXITSTATUS(w) ((w) >> 8)
#define WSTOPSIG(w) ((w) >> 8)
#define WCOREDUMP(w) (((w)&0200) != 0)
#define WTERMSIG(w) ((w) & 0177)
#define WSETEXIT(w, status) ((w) = (status))
#define WSETSTOP(w,sig) ((w) = (0177 | ((sig) << 8)))
#else
#include <sys/wait.h>
#define WAITTYPE union wait
#ifndef WEXITSTATUS
#define WEXITSTATUS(w) (w).w_retcode
#endif
#ifndef WSTOPSIG
#define WSTOPSIG(w) (w).w_stopsig
#endif
#ifndef WCOREDUMP
#define WCOREDUMP(w) (w).w_coredump
#endif
#ifndef WTERMSIG
#define WTERMSIG(w) (w).w_termsig
#endif
#ifndef WSETEXIT
#define WSETEXIT(w, status) ((w).w_status = (status))
#endif
#ifndef WSETSTOP
#define WSETSTOP(w,sig) \
((w).w_stopsig = (sig), (w).w_coredump = 0, (w).w_termsig = 0177)
#endif
#endif
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