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From: Rong-En Fan <rafan@FreeBSD.org>
Date: Mon, 5 Jan 2009 04:26:25 +0000 (UTC)
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Subject: svn commit: r186756 - stable/7/usr.sbin/rpc.yppasswdd
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Author: rafan
Date: Mon Jan  5 04:26:24 2009
New Revision: 186756
URL: http://svn.freebsd.org/changeset/base/186756

Log:
  MFC r184459
  
   - Whenever a password/shell is changed via rpc.yppasswdd, the daemon leaves
     one zombie process because it does not do the cleanup. For a long running
     NIS/YP server, it will have lots of zombie processes on it. Fix that by
     ignoring the SIGCHLD signal since we don't really care about the exit
     status in this case.
  
  PR:           bin/91980
  Reported by:  Arjan van der Velde <dj_noresult at hotmail.com>
  Submitted by: Jui-Nan Lin" <jnlin at csie.nctu.edu.tw>
  Reviewed by:  delphij

Modified:
  stable/7/usr.sbin/rpc.yppasswdd/   (props changed)
  stable/7/usr.sbin/rpc.yppasswdd/yppasswdd_main.c

Modified: stable/7/usr.sbin/rpc.yppasswdd/yppasswdd_main.c
==============================================================================
--- stable/7/usr.sbin/rpc.yppasswdd/yppasswdd_main.c	Mon Jan  5 03:50:04 2009	(r186755)
+++ stable/7/usr.sbin/rpc.yppasswdd/yppasswdd_main.c	Mon Jan  5 04:26:24 2009	(r186756)
@@ -165,6 +165,7 @@ main(int argc, char *argv[])
 	struct sockaddr_in saddr;
 	socklen_t asize = sizeof (saddr);
 	struct netconfig *nconf;
+	struct sigaction sa;
 	void *localhandle;
 	int ch;
 	char *mastername;
@@ -268,6 +269,9 @@ the %s domain -- aborting", yppasswd_dom
 		}
 	}
 	openlog("rpc.yppasswdd", LOG_PID, LOG_DAEMON);
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_flags = SA_NOCLDWAIT;
+	sigaction(SIGCHLD, &sa, NULL);
 
 	rpcb_unset(YPPASSWDPROG, YPPASSWDVERS, NULL);
 	rpcb_unset(MASTER_YPPASSWDPROG, MASTER_YPPASSWDVERS, NULL);