#include <iostream>
#include <string>
#include <cmath>

extern "C" {
#include <arpa/inet.h>
}

int netcapa4(const std::string& ipStr, int prefix) {
    //uint32_t ipAddress;
    //inet_pton(AF_INET, ipStr.data(), &ipAddress);
    //ipAddress = ntohl(ipAddress);

    int hostBits = 32 - prefix;
    uint64_t totalIPs = std::pow(2, hostBits);
    //uint64_t usableHosts = (prefix < 31) ? (totalIPs - 2) : totalIPs;

    //uint32_t subnetMask = (prefix == 0) ? 0 : (~0U << hostBits);
    //uint32_t networkAddress = ipAddress & subnetMask;

    //struct in_addr netAddr;
    //netAddr.s_addr = htonl(networkAddress);
    //char netStr[INET_ADDRSTRLEN];
    //inet_ntop(AF_INET, &netAddr, netStr, INET_ADDRSTRLEN);

    //std::cout << "Total IPs: " << totalIPs << "\n";
    //std::cout << "Usable Hosts: " << usableHosts << "\n";
    return totalIPs;
}

int main() {
    auto capa = netcapa4("192.168.1.10", 24);
    std::cout << "Total IPs: " << capa << "\n";
    return 0;
}