4.3BSD - /usr/src/usr.lib/libU77/wait_.c

   1: /*
   2:  * Copyright (c) 1980 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  *
   6:  *	@(#)wait_.c	5.1	6/7/85
   7:  */
   8: 
   9: /*
  10:  * wait for a child to die
  11:  *
  12:  * calling sequence:
  13:  *	integer wait, status, chilid
  14:  *	chilid = wait(status)
  15:  * where:
  16:  *	chilid will be	- >0 if child process id
  17:  *			- <0 if (negative of) system error code
  18:  *	status will contain the exit status of the child
  19:  *		(see wait(2))
  20:  */
  21: 
  22: extern int errno;
  23: 
  24: long wait_(status)
  25: long *status;
  26: {
  27:     int stat;
  28:     int chid = wait(&stat);
  29:     if (chid < 0)
  30:         return((long)(-errno));
  31:     *status = (long)stat;
  32:     return((long)chid);
  33: }

Defined functions