Socket Test

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <iostream>
#include <sstream>
#include <string>
#include <cstring>
#include <stdio.h>
#include <chrono>

using namespace std;

std::chrono::high_resolution_clock::time_point now() {
  return std::chrono::high_resolution_clock::now();
}

void get_time(std::chrono::high_resolution_clock::time_point t_was, const char *text) {
  std::chrono::high_resolution_clock::time_point t_now = now();
  std::cout << text << " "
    << chrono::duration_cast<std::chrono::microseconds>(t_now - t_was).count()
    << " ("
    << chrono::duration_cast<std::chrono::milliseconds>(t_now - t_was).count()
    << ")"
    << std::endl;
}

int main(int argc, char **argv)
{
    int sock;
    int len = 1000000; char buf[len];
    struct sockaddr_in addr;
    struct hostent *hostname;
    std::chrono::high_resolution_clock::time_point xtime;

    if (argc < 2) { cout << "need host to connect"; return 228; }


    xtime = now();
    cout << "Get host by name..." << endl;
    hostname = gethostbyname(argv[1]);
    if (!hostname) { cout << "lookup error!"; return 322; }
    get_time(xtime,"gethostbyname time -");

    char *ip =  inet_ntoa( (struct in_addr) *((struct in_addr *) hostname->h_addr_list[0]));

    xtime = now();
    cout << "Opening the socket..." << endl;
    sock = socket(AF_INET, SOCK_STREAM, 0);
    if(sock < 0) { cout << "socket" << endl; return 1; }
    get_time(xtime, "opening socket -");

    addr.sin_family = AF_INET;
    addr.sin_port = htons(80); // аИаЛаИ аЛбŽаБаОаЙ аДб€бƒаГаОаЙ аПаОб€б‚...
    addr.sin_addr.s_addr = inet_addr(ip);
    cout << "Connecting to host..." << endl;
    xtime = now();
    if(connect(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0) { cout << "connect error" << endl; return 2; }
    get_time(xtime, "socket connect -");

    std::stringstream stream_req;
    stream_req << "GET / HTTP/1.1" << "\r\n" << "Host: " << argv[1] << "\r\n\r\n";
    std::string request = stream_req.str();

    cout << "Sendint datia to socket" << endl;
    xtime = now();
    send(sock, request.c_str(), strlen(request.c_str()), 0);
    get_time(xtime, "sending data -");

    cout << "Gettind data from socket" << endl;
    xtime = now();
    recv(sock, buf, sizeof(buf) , 0);
    get_time(xtime, "getting data -");

    cout << "Bytes getted - " << strlen(buf) << std::endl;
    close(sock);

    return 0;
}