func: static CVE_2014_5163_PATCHED_decode_apn(tvbuff_t * tvb, int offset, guint16 length, proto_tree * tree, proto_item *item) guint8 str [ MAX_APN_LENGTH + 1 ] ; memset ( str , 0 , MAX_APN_LENGTH + 1 ); tvb_memcpy ( tvb , str , offset , length < MAX_APN_LENGTH ? length : MAX_APN_LENGTH ); while ( ( curr_len < length ) && ( curr_len < MAX_APN_LENGTH ) )  guint step = str [ curr_len ] ; str [ curr_len ] = '.'; curr_len += step + 1; proto_tree_add_string ( tree , hf_gtp_apn , tvb , offset , length , str + 1 ); proto_item_append_text ( item , ": %s" , str + 1 ); 