working commit

works/hostcap.cpp

@@ -0,0 +1,36 @@
+#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;
+}
+