Reviewed-by: xdono

Reviewed-by: alanb, dsamersoff

6964714: NetworkInterface getInetAddresses enumerates IPv6 addresses if java.net.preferIPvStack property set
Summary: User can disable ipv6 explicitly, have to check it
Reviewed-by: chegar, alanb

Reviewed-by: alanb, dsamersoff

Summary: Separate Linux and Solaris code, use lifreq under Solaris
Reviewed-by: chegar

Reviewed-by: darcy, weijun

Reviewed-by: alanb

Summary: Update copyright for files that have been modified in 2009, up to 03/09
Reviewed-by: katleman, tbell, ohair

6800805: java.net.NetworkInterface.getNetworkInterfaces() does not list IPv6 network interfaces correctly
Reviewed-by: jccollet

Summary: Make getIndex() and getByIndex() public. Required a name change in native code
Reviewed-by: alanb, chegar, michaelm

Summary: Cleanup compiler warnings
Reviewed-by: alanb, jccollet, michaelm

Summary: Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell

Summary: failover to IPv6 socket if IPv4 fails
Reviewed-by: michaelm