openbsd-compat/bsd-waitpid.h

   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 */