[src/trunk]: src/usr.sbin/rpc.statd Add a handler for SIGCHLD which collects ...

[tron <tron%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3d1747b1bbf5
branches:  trunk
changeset: 517983:3d1747b1bbf5
user:      tron <tron%NetBSD.org@localhost>
date:      Thu Nov 22 12:23:15 2001 +0000

description:
Add a handler for SIGCHLD which collects dead childs via wait3(2) so that
"rpc.statd" won't leave zombies arround.

diffstat:

 usr.sbin/rpc.statd/statd.c |  15 +++++++++++++--
 1 files changed, 13 insertions(+), 2 deletions(-)

diffs (54 lines):

diff -r 235567c5b3d4 -r 3d1747b1bbf5 usr.sbin/rpc.statd/statd.c
--- a/usr.sbin/rpc.statd/statd.c        Thu Nov 22 12:17:00 2001 +0000
+++ b/usr.sbin/rpc.statd/statd.c        Thu Nov 22 12:23:15 2001 +0000
@@ -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 @@
 /* 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 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 @@
 {
        int ch;
 
+       (void)signal(SIGCHLD, sigchld_handler);
+
        while ((ch = getopt(argc, argv, "d")) != (-1)) {
                switch (ch) {
                case 'd':
@@ -623,3 +627,10 @@
        (*db->close)(db);
        exit(n);
 }
+
+static void
+sigchld_handler(dontcare)
+       int dontcare;
+{
+       while (wait3(&dontcare, WNOHANG, NULL) > 0);
+}