C++框架在网络安全方面的应用场景有哪些？

#include <iostream>
#include <sys/socket.h>
#include <netinet/in.h>

int main() {
  int sock = socket(AF_INET, SOCK_STREAM, 0);
  sockaddr_in addr = {0};
  addr.sin_family = AF_INET;
  addr.sin_addr.s_addr = inet_addr("127.0.0.1");
  addr.sin_port = htons(80);

  connect(sock, (sockaddr*)&addr, sizeof(addr));

  // 发送 HTTP 请求
  send(sock, "GET / HTTP/1.1\r\n\r\n", strlen("GET / HTTP/1.1\r\n\r\n"), 0);

  // 接收响应
  char buffer[1024] = {0};
  recv(sock, buffer, sizeof(buffer), 0);

  // 解析响应并报告发现的漏洞
  std::cout << buffer << std::endl;
  close(sock);

  return 0;
}

#include <iostream>
#include <pcap.h>

int main() {
  char errbuf[PCAP_ERRBUF_SIZE];
  pcap_t* handle = pcap_open_live("eth0", 65535, 1, 100, errbuf);

  while (true) {
    // 捕获下一个数据包
    pcap_pkthdr* header;
    const u_char* data;
    int res = pcap_next_ex(handle, &header, &data);
    if (res == 0) continue;
    if (res == -1) {
      std::cerr << "Error while capturing packet: " << errbuf << std::endl;
      break;
    }

    // 分析数据包并检测是否存在攻击
    // ...

    // 如果检测到攻击，执行防御措施
    // ...
  }

  pcap_close(handle);

  return 0;
}

#include <iostream>
#include <vector>
#include <random>

// 模型中的计算机
class Computer {
public:
  int id;
  int security_level;
  std::vector<Computer*> neighbors;

  Computer(int id, int security_level) : id(id), security_level(security_level) {}
};

// 模型中的网络
class Network {
public:
  std::vector<Computer*> computers;

  Network() {
    // 创建计算机并连接它们
    for (int i = 0; i < 10; ++i) {
      computers.push_back(new Computer(i, rand() % 5));
    }
    for (int i = 0; i < 10; ++i) {
      for (int j = 0; j < rand() % 5; ++j) {
        computers[i]->neighbors.push_back(computers[rand() % 10]);
      }
    }
  }

  // 模拟攻击并测试防御措施
  void simulate_attack() {
    // ...
  }
};

int main() {
  Network network;

  // 模拟攻击并测试不同的防御措施
  network.simulate_attack();

  // 分析结果并改进防御措施
  // ...

  return 0;
}