unformat_ip_prefix (unformat_input_t * input, va_list * args)
{
ip_prefix_t *a = va_arg (*args, ip_prefix_t *);
+ /* %d writes more than a u8 */
+ int plen;
if (unformat (input, "%U/%d", unformat_ip_address, &ip_prefix_addr (a),
- &ip_prefix_len (a)))
+ &plen))
{
+ ip_prefix_len (a) = plen;
if ((ip_prefix_version (a) == AF_IP4 && 32 < ip_prefix_len (a)) ||
(ip_prefix_version (a) == AF_IP6 && 128 < ip_prefix_len (a)))
{
u32
ip6_mask_to_preflen (ip6_address_t * mask)
{
- u8 first1, first0;
- if (mask->as_u64[0] == 0 && mask->as_u64[1] == 0)
- return 0;
- first1 = log2_first_set (clib_net_to_host_u64 (mask->as_u64[1]));
- first0 = log2_first_set (clib_net_to_host_u64 (mask->as_u64[0]));
-
- if (first1 != 0)
- return 128 - first1;
- else
- return 64 - first0;
+ if (mask->as_u64[1] != 0)
+ return 128 - log2_first_set (clib_net_to_host_u64 (mask->as_u64[1]));
+ if (mask->as_u64[0] != 0)
+ return 64 - log2_first_set (clib_net_to_host_u64 (mask->as_u64[0]));
+ return 0;
}
/*