gistfile1.txt

#include <iostream>
#include <thread>
#include <string>
#include <cstring>
#include <ctime>
#include <unistd.h>
#include <arpa/inet.h>
#include <sys/socket.h>

using namespace std;

string get_time() {
    time_t now = time(0);
    tm *ltm = localtime(&now);
    char buf[64];
    sprintf(buf,"%02d:%02d:%02d", ltm->tm_hour, ltm->tm_min, ltm->tm_sec);
    return string(buf);
}

string get_date() {
    time_t now = time(0);
    tm *ltm = localtime(&now);
    char buf[64];
    sprintf(buf,"%02d-%02d-%04d", ltm->tm_mday, ltm->tm_mon+1, 1900+ltm->tm_year);
    return string(buf);
}

string get_weather(string city) {
    return "Weather in " + city + ": +10C";
}

string get_euro() {
    return "EUR = 4.30 PLN";
}

string get_btc() {
    return "BTC = 60000 USD";
}

void handle_client(int client_socket) {

    char buffer[1024];

    while(true) {

        memset(buffer,0,sizeof(buffer));
        int bytes = recv(client_socket, buffer, sizeof(buffer),0);

        if(bytes <= 0) break;

        string request(buffer);
        string response;

        if(request == "time")
            response = get_time();

        else if(request == "date")
            response = get_date();

        else if(request.find("weather") == 0) {
            string city = request.substr(8);
            response = get_weather(city);
        }

        else if(request == "euro")
            response = get_euro();

        else if(request == "btc")
            response = get_btc();

        else
            response = "Unknown command";

        send(client_socket,response.c_str(),response.size(),0);
    }

    close(client_socket);
}







int main() {

    int server_fd = socket(AF_INET, SOCK_STREAM, 0);

    sockaddr_in address;
    address.sin_family = AF_INET;
    address.sin_port = htons(8080);
    address.sin_addr.s_addr = INADDR_ANY;

    bind(server_fd,(sockaddr*)&address,sizeof(address));
    listen(server_fd,5);

    cout<<"Server started...\n";

    while(true) {

        socklen_t addrlen = sizeof(address);
        int client_socket = accept(server_fd,(sockaddr*)&address,&addrlen);

        thread t(handle_client,client_socket);
        t.detach();
    }

    close(server_fd);
} 


#include <iostream>
#include <string>
#include <unistd.h>
#include <arpa/inet.h>
#include <sys/socket.h>

using namespace std;

int main() {

    int sock = socket(AF_INET,SOCK_STREAM,0);

    sockaddr_in server;
    server.sin_family = AF_INET;
    server.sin_port = htons(8080);
    inet_pton(AF_INET,"127.0.0.1",&server.sin_addr);

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

    while(true) {

        string command;
        cout<<"Enter command: ";
        getline(cin,command);

        send(sock,command.c_str(),command.size(),0);

        char buffer[1024];
        int bytes = recv(sock,buffer,sizeof(buffer),0);

        buffer[bytes] = 0;

        cout<<"Server: "<<buffer<<endl;
    }

    close(sock);
}

ю