#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <iostream>

using namespace std;

const int BUFFER_SIZE = 1024;
int sockfd;
struct sockaddr_in serv_addr;
struct hostent *server;

int main(int argc, char* argv[]) {
    //Create and check socket
    sockfd = socket(AF_INET, SOCK_STREAM, 0);
    if (sockfd < 0) {
        fprintf(stderr,"ERROR opening socket\n");
        exit(0);
    }

    //Setting up sockaddr
    server = gethostbyname("127.0.0.1");
    if (server == NULL) {
        fprintf(stderr,"ERROR: no such host\n");
        exit(0);
    }
    bzero((char *) &serv_addr, sizeof(serv_addr));
    serv_addr.sin_family = AF_INET;                     //Set adress family
    serv_addr.sin_port = htons(8000);                   //Convert and set port
    bcopy((char *)server->h_addr, (char *)&serv_addr.sin_addr.s_addr, server->h_length);    //Connect to self

    //Trying to connect
    if (connect(sockfd, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0) {
        fprintf(stderr, "ERROR connecting\n");
        exit(0);
    }

    char buffer[BUFFER_SIZE];    //Buffer
    int n;
    bzero(buffer, BUFFER_SIZE);    //Fill buffer with zeros

    fprintf(stdout, "Введите фразу для поиска: ");
    fgets(buffer, BUFFER_SIZE, stdin);
    n = write(sockfd, buffer, strlen(buffer));

    //Check written
    if (n < 0) {
        fprintf(stderr, "ERROR writing to socket");
        exit(0);
    }

    //Check read
    bzero(buffer, BUFFER_SIZE);
    n = read(sockfd, buffer, BUFFER_SIZE);
    if (n < 0) {
        fprintf(stderr, "ERROR reading from socket");
        exit(0);
    }
    printf("%s\n", buffer);
    close(sockfd);
}