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Add a handler for SIGCHLD which collects dead childs via wait3(2) so that

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"rpc.statd" won't leave zombies arround.
This commit is contained in:
tron 2001-11-22 12:23:15 +00:00
parent e7fb452657
commit 59d12b63b8
1 changed files with 13 additions and 2 deletions
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15
usr.sbin/rpc.statd/statd.c
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@ -1,4 +1,4 @@
/* $NetBSD: statd.c,v 1.18 2001/02/19 23:22:47 cgd Exp $ */
/* $NetBSD: statd.c,v 1.19 2001/11/22 12:23:15 tron Exp $ */
/*
* Copyright (c) 1997 Christos Zoulas. All rights reserved.
@ -37,7 +37,7 @@
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: statd.c,v 1.18 2001/02/19 23:22:47 cgd Exp $");
__RCSID("$NetBSD: statd.c,v 1.19 2001/11/22 12:23:15 tron Exp $");
#endif
/* main() function for status monitor daemon. Some of the code in this */
@ -45,6 +45,7 @@ __RCSID("$NetBSD: statd.c,v 1.18 2001/02/19 23:22:47 cgd Exp $");
/* The actual program logic is in the file procs.c */
#include <sys/param.h>
#include <sys/wait.h>
#include <err.h>
#include <ctype.h>
@ -88,6 +89,7 @@ static int notify_one __P((DBT *, HostInfo *, void *));
static void init_file __P((char *));
static int notify_one_host __P((char *));
static void die __P((int)) __attribute__((__noreturn__));
static void sigchld_handler __P((int));
int main __P((int, char **));
@ -98,6 +100,8 @@ main(argc, argv)
{
int ch;
(void)signal(SIGCHLD, sigchld_handler);
while ((ch = getopt(argc, argv, "d")) != (-1)) {
switch (ch) {
case 'd':
@ -623,3 +627,10 @@ die(n)
(*db->close)(db);
exit(n);
}
static void
sigchld_handler(dontcare)
int dontcare;
{
while (wait3(&dontcare, WNOHANG, NULL) > 0);
}