+ // IPv6 short form
+ if(strstr(subnetstr, "::")) {
+ const char *p;
+ char *q;
+ int colons = 0;
+
+ // Count number of colons
+ for(p = subnetstr; *p; p++)
+ if(*p == ':')
+ colons++;
+
+ if(colons > 7)
+ return false;
+
+ // Scan numbers before the double colon
+ p = subnetstr;
+ for(i = 0; i < colons; i++) {
+ if(*p == ':')
+ break;
+ x[i] = strtoul(p, &q, 0x10);
+ if(!q || p == q || *q != ':')
+ return false;
+ p = ++q;
+ }
+
+ p++;
+ colons -= i;
+ if(!i) {
+ p++;
+ colons--;
+ }
+
+ if(!*p || *p == '/' || *p == '#')
+ colons--;
+
+ // Fill in the blanks
+ for(; i < 8 - colons; i++)
+ x[i] = 0;
+
+ // Scan the remaining numbers
+ for(; i < 8; i++) {
+ x[i] = strtoul(p, &q, 0x10);
+ if(!q || p == q)
+ return false;
+ if(i == 7) {
+ p = q;
+ break;
+ }
+ if(*q != ':')
+ return false;
+ p = ++q;
+ }
+
+ l = 128;
+ if(*p == '/')
+ sscanf(p, "/%d#%d", &l, &weight);
+ else if(*p == '#')
+ sscanf(p, "#%d", &weight);
+
+ if(l < 0 || l > 128)
+ return false;
+
+ subnet->type = SUBNET_IPV6;
+ subnet->net.ipv6.prefixlength = l;
+ subnet->weight = weight;
+
+ for(i = 0; i < 8; i++)
+ subnet->net.ipv6.address.x[i] = htons(x[i]);
+
+ return true;
+ }
+