Allow interface name to be specified on *BSD
Allow interface name to be specified on *BSD

Signed-off-by: David Woodhouse <b460d66aaf00c296a3db1c1d9eeafc081d5f7d70@intel.com>

atyndall/openconnect,mtmiller/openconnect,sihde/openconnect,mtmiller/openconnect,certik/openconnect,nmav/openconnect-mine,chadcatlett/openconnect,liiir1985/openconnect,cernekee/openconnect,brandt/openconnect,matlockx/openconnect,chadcatlett/openconnect,neshema/openconnect,chadcatlett/openconnect,don-johnny/openconnect,mtmiller/openconnect,cernekee/openconnect,lins05/openconnect,lins05/openconnect,atyndall/openconnect,liiir1985/openconnect,certik/openconnect,mveplus/openconnect-client,cernekee/openconnect,matlockx/openconnect,liiir1985/openconnect,cernekee/openconnect,nmav/openconnect-mine,nmav/openconnect-mine,liiir1985/openconnect,lins05/openconnect,neshema/openconnect,mveplus/openconnect-client,mtmiller/openconnect,neshema/openconnect,nmav/openconnect-mine,atyndall/openconnect,neshema/openconnect,matlockx/openconnect,matlockx/openconnect,atyndall/openconnect,don-johnny/openconnect,brandt/openconnect,brandt/openconnect,chadcatlett/openconnect,lins05/openconnect,mveplus/openconnect-client,don-johnny/openconnect,certik/openconnect,brandt/openconnect,mveplus/openconnect-client,sihde/openconnect,don-johnny/openconnect,sihde/openconnect