1/* $Id: bsd-waitpid.h,v 1.5 2003/08/29 16:59:52 mouring Exp $ */
2
3/*
4 * Copyright (c) 2000 Ben Lindstrom.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 */
27
28#ifndef _BSD_WAITPID_H
29#define _BSD_WAITPID_H
30
31#ifndef HAVE_WAITPID
32/* Clean out any potental issues */
33#undef WIFEXITED
34#undef WIFSTOPPED
35#undef WIFSIGNALED
36
37/* Define required functions to mimic a POSIX look and feel */
38#define _W_INT(w)	(*(int*)&(w))	/* convert union wait to int */
39#define WIFEXITED(w)	(!((_W_INT(w)) & 0377))
40#define WIFSTOPPED(w)	((_W_INT(w)) & 0100)
41#define WIFSIGNALED(w)	(!WIFEXITED(w) && !WIFSTOPPED(w))
42#define WEXITSTATUS(w)	(int)(WIFEXITED(w) ? ((_W_INT(w) >> 8) & 0377) : -1)
43#define WTERMSIG(w)	(int)(WIFSIGNALED(w) ? (_W_INT(w) & 0177) : -1)
44#define WCOREFLAG	0x80
45#define WCOREDUMP(w) 	((_W_INT(w)) & WCOREFLAG)
46
47/* Prototype */
48pid_t waitpid(int, int *, int);
49
50#endif /* !HAVE_WAITPID */
51#endif /* _BSD_WAITPID_H */
52