#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/socket.h>     ///PER LE FUNZIONI SUI SOCKET.
#include <netinet/in.h>     ///PER LA STRUCT SOCKADDR_IN.
#include <arpa/inet.h>      ///PER LA FUNZIONE INET_ATON().

int create(char *, int);

int main(int argc, char *argv[]){
    int fd;
    int i;
    char string[100];


    fd=create("127.0.0.1", 4502);


    if(argc<2)
        write(fd, "\nCiao sono il client.", strlen("\nCiao sono il client."));
    else{
        for(i=1; i<argc; i++){
            write(fd, argv[i], strlen(argv[i]));

            sprintf(string, "%s\n", argv[i]);
            write(STDOUT_FILENO, string, strlen(string));
        }
    }
    close(fd);


    return 0;
}

int create(char *IP, int port){
    int fd;
    struct sockaddr_in addr;
    int error;


    addr.sin_family=AF_INET;
    addr.sin_port=htons(port);
    inet_aton(IP, &addr.sin_addr);

    fd=socket(AF_INET, SOCK_STREAM, 0);

    error=connect(fd, (struct sockaddr *)&addr, sizeof(addr));
    if(error<0)
        perror("\nConnection Refused..."),exit(1);

    return(fd);
}