print_flowspec_addr
print_flowspec_addr(f, FLOWSPEC_TYPE_SOURCE, is_v6);
print_flowspec_addr(f, FLOWSPEC_TYPE_DEST, is_v6);
print_flowspec_addr(f, FLOWSPEC_TYPE_SOURCE, is_v6);
print_flowspec_addr(f, FLOWSPEC_TYPE_DEST, is_v6);