#include <sys/types.h>
#include <sys/socket.h>

int  connect(int sockfd, const struct sockaddr *serv_addr,
         socklen_t addrlen);
		

#include <sys/stat.h>
#include <arpa/inet.h>
#include <stdio.h>
#include <string.h>

int main(int argc, char **argv)
{
    struct sockaddr_in serveraddr;
    int server_sockfd;
    int client_len;
    char buf[80];
    char rbuf[80];


    if ((server_sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
    {
        perror("error :");
        exit(0);
    }

    server_sockfd = socket(AF_INET, SOCK_STREAM, 0);
    serveraddr.sin_family = AF_INET;
    serveraddr.sin_addr.s_addr = inet_addr("218.234.19.87");
    serveraddr.sin_port = htons(atoi(argv[1]));

    client_len = sizeof(serveraddr);

    if (connect(server_sockfd, (struct sockaddr *)&serveraddr, client_len) < 0)
    {
        perror("connect error :");
        exit(0);
    }

    memset(buf, 0x00, 80);
    read(0, buf, 80);
    if (write(server_sockfd, buf, 80) <= 0)
    {
        perror("write error : ");
        exit(0);
    }
    memset(buf, 0x00, 80);
    if (read(server_sockfd, buf, 80) <= 0)
    {
        perror("read error : ");
        exit(0);
    }
    close(server_sockfd);
    printf("read : %s", buf);
}