server.cpp

#include <iostream>
#include <ctime>

extern "C"
{
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <signal.h>
}

using namespace std;
void signal_handler(int siganl)
{
        cout << "pressed CTRL+C, exiting" << endl;
        _exit(0);
}


int main()
{
    signal(SIGINT, signal_handler);
    int sock = socket(AF_INET, SOCK_STREAM,0);
    if( sock == NULL)
    {
        cout << "create sock error" << endl;
        _exit(0);
    }
    struct sockaddr_in server_address;
    int conn;
    time_t ticks;
    char buffer[1025];

    memset(&server_address, 0, sizeof server_address);
    server_address.sin_family = AF_INET;
    server_address.sin_addr.s_addr = htonl(INADDR_ANY);
    server_address.sin_port = htons(711);
    int ret = bind(sock, (struct sockaddr*)&server_address, sizeof server_address);
    listen(sock, 10);
    while (true)
    {
        conn = accept(sock, (struct sockaddr*)NULL, NULL);
        ticks = time(NULL);
        sprintf(buffer, "%s\r\n", ctime(&ticks));
        write(conn, buffer, sizeof buffer);
        close(conn);
    }
    close(sock);
    return 0;
}