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Date: Tue, 01 Aug 2000 02:16:07 +0000
From: Tony Finch <dot@dotat.at>
Reply-To: Tony Finch <dot@dotat.at>
To: FreeBSD-gnats-submit@freebsd.org
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Subject: bin/20331: dhclient configures the broadcast address incorrectly
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>Number:         20331
>Category:       bin
>Synopsis:       dhclient configures the broadcast address incorrectly
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Jul 31 19:20:01 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     Tony Finch <dot@dotat.at>
>Release:        FreeBSD 4.1-STABLE-20000729 i386
>Organization:
dotat
>Environment:

FreeBSD hand.dotat.at 4.1-STABLE-20000729 FreeBSD 4.1-STABLE-20000729 #0: Sun Jul 30 00:30:12 UTC 2000     root@hand.dotat.at:/other/obj/other/src/sys/DELL-Latitude-CPx  i386

>Description:

dhclient configures the broadcast address of an interface to the
subnet's base address

>How-To-Repeat:

This is the situation on my machine right now.

fanf@hand.dotat.at:~
:; ifconfig -a
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1 
        inet6 ::1 prefixlen 128 
        inet 127.0.0.1 netmask 0xff000000 
ed0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        inet6 fe80::280:c8ff:fe87:ec91%ed0 prefixlen 64 scopeid 0x2 
        inet 10.0.0.35 netmask 0xffffff00 broadcast 10.0.0.0
        ether 00:80:c8:87:ec:91 
fanf@hand.dotat.at:~
:; ps aux | grep dhc 
fanf  7528  0.0  0.4  1036  512  p1  S+    2:14AM   0:00.00 grep dhc
root  1277  0.0  0.2   536  280  ??  Is    4:45AM   0:00.00 /sbin/dhclient ed0
fanf@hand.dotat.at:~
:; 


>Fix:

Fortunately it's just a simple cut & paste coding error.

--- dhclient.c.orig	Thu Jul 20 20:29:53 2000
+++ dhclient.c	Tue Aug  1 02:11:22 2000
@@ -1972,7 +1972,7 @@
 				if (broadcast.len) {
 				    client_envadd (ip -> client,
 						   prefix, "broadcast_address",
-						   "%s", piaddr (subnet));
+						   "%s", piaddr (broadcast));
 				}
 			}
 		}

>Release-Note:
>Audit-Trail:
>Unformatted:


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