Fix potential buffer overflow in banner handling
Fix potential buffer overflow in banner handling

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

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