#include <iostream>
#include <sys/socket.h>
#include <sys/types.h>
#include <netdb.h>
#include <unistd.h>

int main() {
  std::cout << "start" << std::endl;

  const char* host = "192.168.1.100";
  const char* port = "8080";

  addrinfo hints;
  addrinfo* res;

  memset(&hints, 0x0, sizeof(hints));
  hints.ai_family = PF_INET;
  hints.ai_socktype = SOCK_STREAM;
  hints.ai_protocol = IPPROTO_TCP;

  const int getaddr_res = getaddrinfo(host, port, &hints, &res);
  if (getaddr_res != 0) {
    std::cerr << "getaddrinfo failed" << std::endl;
    return EXIT_FAILURE;
  }

  const int sock_id = socket(hints.ai_family, hints.ai_socktype, hints.ai_protocol);
  if (sock_id == -1) {
    std::cerr << "socket failed" << std::endl;
    return EXIT_FAILURE;
  }

  std::cout << "connect..." << std::endl;

  const int conn_res = connect(sock_id, res->ai_addr, res->ai_addrlen);
  if (conn_res != 0) {
    std::cerr << "connect failed" << std::endl;
    return EXIT_FAILURE;
  }

  const int close_res = close(sock_id);
  if (close_res != 0) {
    std::cerr << "close failed" << std::endl;
    return EXIT_FAILURE;
  }

  std::cout << "end" << std::endl;
  return EXIT_SUCCESS;
}