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 */
48 pid_t waitpid(int, int *, int);
49 
50 #endif /* !HAVE_WAITPID */
51 #endif /* _BSD_WAITPID_H */
52