enum status anon_subnet_add(struct in_addr a, unsigned int netmasklen) {
if (num_subnets >= MAX_ANON_SUBNETS) {
return failure;
} else {
// fprintf(output, "adding subnet %u\n", num_subnets);
anon_subnet[num_subnets].addr = a;
anon_subnet[num_subnets].mask.s_addr = ipv4_mask(netmasklen);
// fprintf(anon_info, "addr: %s\t", inet_ntoa(anon_subnet[num_subnets].addr));
// print_binary(anon_info, &anon_subnet[num_subnets].addr, 4);
// fprintf(anon_info, "\t");
// print_binary(anon_info, &anon_subnet[num_subnets].mask.s_addr, 4);
// fprintf(anon_info, "\n");
num_subnets++;
}
return ok;
}
/**
* \fn unsigned int addr_mask (unsigned int addr, unsigned int masklen)
* \param addr ipv4 address
* \param masklen length of the subnet mask
* \return ipv4 address mask
*/
unsigned int addr_mask (unsigned int addr, unsigned int masklen) {
struct in_addr mask;
mask.s_addr = ipv4_mask(masklen);
return mask.s_addr & addr;
}
