pkg/29279: Trivial fix to IPv6 in wget

[bp009%terran.org@localhost]

>Number:         29279
>Category:       pkg
>Synopsis:       Strange behavior from wget on IPv6 addresses
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Feb 08 02:17:00 +0000 2005
>Originator:     Bryan J. Phillippe
>Release:        NetBSD 1.6.2_STABLE - NetBSD-current
>Organization:
-bp
--
>Environment:
System: NetBSD jupiter 1.6.2_STABLE NetBSD 1.6.2_STABLE (jupiter 20030804) #7: 
Sat May 15 08:34:21 PDT 2004 
bryan@jupiter:/usr/home/bryan/etc/src/NetBSD/1.6/src/sys/arch/alpha/compile/jupiter
 alpha
Architecture: alpha
Machine: alpha
>Description:
        wget uses an uninitialized struct sockaddr for networking.  For
        IPv4 this probably doesn't cause much trouble, but for IPv6 it
        can result in DAD occuring (~6 sec) before connect() returns (and
        possibly other more sinister problems).
>How-To-Repeat:
        Connect to an IPv6 address with wget and observe the delay and DAD
        activity on the wire via tcpdump.
>Fix:
--- host.c.orig 2005-02-07 17:55:35.000000000 -0800
+++ host.c      2005-02-07 17:55:49.000000000 -0800
@@ -286,6 +286,8 @@
 wget_sockaddr_set_address (wget_sockaddr *sa, 
                           unsigned short port, ip_address *addr, int family)
 {
+  memset (sa, 0, sizeof(*sa));
+
   if (family == AF_INET)
     {
       sa->sin.sin_family = AF_INET;