Simple client

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

#define DIE(assertion, msg) \
     if (assertion ) { perror(msg); exit(EXIT_FAILURE); }

int main()
{
    struct sockaddr_in addr;
    int rc, fd;
    char send_buffer[] = "Ala bala portocala";

    fd = socket(AF_INET, SOCK_STREAM, 0);
    DIE(fd < 0, "socket");


    addr.sin_family = AF_INET;
    addr.sin_port = htons(8888);
    addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
    rc = connect(fd, (struct sockaddr *)&addr, sizeof(addr));
    DIE(rc < 0, "connect");

    printf("[CLIENT] Successfuly connected.\n");

    rc = send(fd, send_buffer, sizeof(send_buffer), 0);
    DIE(rc < 0, "send");
    printf("[CLIENT] Send returned %d\n", rc);

    sleep(1);

    return close(fd);
}