1/* NAME:
2 *	wait.h - compensate for what vendors leave out
3 *
4 * AUTHOR:
5 *	Simon J. Gerraty <sjg@crufty.net>
6 */
7/*
8 * RCSid:
9 *	$Id: wait.h,v 1.6 2002/11/26 07:53:06 sjg Exp $
10 *
11 *      @(#)Copyright (c) 1994, Simon J. Gerraty.
12 *
13 *      This is free software.  It comes with NO WARRANTY.
14 *      Permission to use, modify and distribute this source code
15 *      is granted subject to the following conditions.
16 *      1/ that the above copyright notice and this notice
17 *      are preserved in all copies and that due credit be given
18 *      to the author.
19 *      2/ that any changes to this code are clearly commented
20 *      as such so that the author does not get blamed for bugs
21 *      other than his own.
22 *
23 *      Please send copies of changes and bug-fixes to:
24 *      sjg@crufty.net
25 */
26
27#include <sys/wait.h>
28
29#ifdef sun386
30# define UNION_WAIT
31# define WEXITSTATUS(x) ((&x)->w_retcode)
32# define WTERMSIG(x) ((&x)->w_termsig)
33# define WSTOPSIG(x) ((&x)->w_stopsig)
34# define HAVE_WAIT4
35#endif
36
37#ifndef WAIT_T
38# ifdef UNION_WAIT
39#   define WAIT_T union wait
40#   define WAIT_STATUS(x) (x).w_status
41# else
42#   define WAIT_T int
43#   define WAIT_STATUS(x) x
44# endif
45#endif
46
47#ifndef WEXITSTATUS
48# define WEXITSTATUS(_X)       (((int)(_X)>>8)&0377)
49#endif
50#ifndef WSTOPPED
51# define WSTOPPED 0177
52#endif
53#ifndef WSTOPSIG
54# define WSTOPSIG(x) WSTOPPED
55#endif
56
57#ifdef UNION_WAIT
58#ifndef WSET_STOPCODE
59#define WSET_STOPCODE(x, sig) ((&x)->w_stopsig = (sig))
60#endif
61#ifndef WSET_EXITCODE
62#define WSET_EXITCODE(x, ret, sig) ((&x)->w_termsig = (sig), (&x)->w_retcode = (ret))
63#endif
64#else
65#ifndef WSET_STOPCODE
66#define WSET_STOPCODE(x, sig) ((x) = ((sig) << 8) | 0177)
67#endif
68#ifndef WSET_EXITCODE
69#define WSET_EXITCODE(x, ret, sig) ((x) = (ret << 8) | (sig))
70#endif
71#endif
72
73#ifndef HAVE_WAITPID
74# ifdef HAVE_WAIT4
75#   define waitpid(pid, statusp, flags)	 wait4(pid, statusp, flags, (char *)0)
76# else
77#   ifdef HAVE_WAIT3
78#     define waitpid(pid, statusp, flags) wait3(statusp, flags, (char *)0)
79#   endif
80# endif
81#endif
82