#include <iostream>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
using namespace std;


int main(){
    const int port = 4444;

    int sockfd;
    struct sockaddr_in serverAddr;

    int newSocket;
    struct sockaddr_in newAddr;

    socklen_t addr_size;
    char buffer[1024];

    sockfd = socket(AF_INET, SOCK_STREAM, 0);
    if(sockfd == -1){
        cerr<<"Socket fallita";
        exit(1);
    }
    cout<<"[+]Server Socket Creata.\n";
    memset(&serverAddr, '\0', sizeof(serverAddr));

    serverAddr.sin_family = AF_INET;
    serverAddr.sin_port = htons(port);
    serverAddr.sin_addr.s_addr = inet_addr("127.0.0.1");


    if((bind(sockfd, (struct sockaddr*)&serverAddr, sizeof(serverAddr))) == -1){
        cerr<<"Bind fallita";
        exit(1);
    }
    cout<<"[+]Bind sulla Port numero "<<port<<endl;


    if((listen(sockfd, 5)) == -1){
        cerr<<"Listen fallita";
        exit(1);
    }
    cout<<"[+]Sto ascoltanto...\n";

    newSocket = accept(sockfd, (struct sockaddr*)&newAddr, &addr_size);
    if(newSocket == -1){
        cerr<<"Accettazione fallita";
        exit(1);
    }
    cout<<"Connessione accetta";

    strcpy(buffer, "Ciao, sono il server");
    send(newSocket, buffer, strlen(buffer), 0);
    cout<<"[+]Sto chiudendo la connessione\n";
    close(sockfd);
    close(newSocket);
}