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/* $OpenBSD: wwchild.c,v 1.2 1996/06/26 05:43:36 deraadt Exp $ */
/* $NetBSD: wwchild.c,v 1.3 1995/09/28 10:35:13 tls Exp $ */
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Edward Wang at The University of California, Berkeley.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
#if 0
static char sccsid[] = "@(#)wwchild.c 8.1 (Berkeley) 6/6/93";
#else
static char rcsid[] = "$OpenBSD: wwchild.c,v 1.2 1996/06/26 05:43:36 deraadt Exp $";
#endif
#endif /* not lint */
#include "ww.h"
#include <sys/types.h>
#include <sys/wait.h>
void
wwchild()
{
extern errno;
int olderrno;
register struct ww **wp;
union wait w;
int pid;
char collected = 0;
olderrno = errno;
while ((pid =
wait3((int *)&w, WNOHANG|WUNTRACED, (struct rusage *)0)) > 0) {
for (wp = wwindex; wp < &wwindex[NWW]; wp++) {
if (*wp && (*wp)->ww_state == WWS_HASPROC
&& (*wp)->ww_pid == pid) {
(*wp)->ww_state = WWS_DEAD;
collected = 1;
break;
}
}
}
errno = olderrno;
/* jump out of wwiomux when somebody dies */
if (collected)
wwsetintr();
}
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