Scanner Réseau C++

#include <iostream>

#include <thread>

#include <vector>

#include <sys/socket.h>

#include <arpa/inet.h>

#include <unistd.h>

bool scanPort(const std::string& host, int port) {

    int sock = socket(AF_INET, SOCK_STREAM, 0);

    if (sock < 0) return false;

    struct timeval timeout;

    timeout.tv_sec = 1;

    timeout.tv_usec = 0;

    setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof(timeout));

    struct sockaddr_in addr;

    addr.sin_family = AF_INET;

    addr.sin_port = htons(port);

    inet_pton(AF_INET, host.c_str(), &addr.sin_addr);

    bool isOpen = (connect(sock, (struct sockaddr*)&addr, sizeof(addr)) == 0);

    close(sock);

    return isOpen;

}

int main() {

    std::string target = "192.168.1.1";

    std::vector<std::thread> threads;

    for (int port = 1; port <= 1024; port++) {

        threads.emplace_back([target, port]() {

            if (scanPort(target, port)) {

                std::cout << "Port " << port << " is open\n";

            }

        });

    }

    for (auto& t : threads) t.join();

    return 0;

}