/*
    Create a TCP socket
*/
 
#include<stdio.h>
#include<winsock2.h>
#include <sys/types.h>
#include "message.h"

// Acad's IP Address
#define SERV_HOST_ADDR "156.12.127.18"
 
#pragma comment(lib,"ws2_32.lib") //Winsock Library
 
int main(int argc , char *argv[])
{
    WSADATA wsa;
    SOCKET sockfd;
    struct sockaddr_in server;
    char *message;

    int SERV_TCP_PORT, i;
    char *pname;
    MES mes_out, mes_in, tmp;

    printf("Please input the same integer input to the ser program\n");
    printf("  (which is larger than 1023)\n");
    scanf("%d", &SERV_TCP_PORT);

    pname = argv[0];
    
    printf("\nInitialising Winsock...");
    if (WSAStartup(MAKEWORD(2,2),&wsa) != 0)
    {
        printf("Failed. Error Code : %d",WSAGetLastError());
        return 1;
    }
     
    printf("Initialised.\n");
     
    //Create a socket
    if((sockfd = socket(AF_INET , SOCK_STREAM , 0 )) == INVALID_SOCKET)
    {
        printf("Could not create socket : %d" , WSAGetLastError());
    }
    printf("Socket created.\n");
     
    server.sin_addr.s_addr = inet_addr("156.12.127.18");
    server.sin_family = AF_INET;
    server.sin_port = htons(SERV_TCP_PORT);
 
    //Connect to remote server
    if (connect(sockfd , (struct sockaddr *)&server , sizeof(server)) < 0)
    {
        puts("connect error");
        return 1;
    }
     
    puts("Connected");
     
    //Send some data
    mes_out.mtype = htonl(getpid());

    for(i=0; i<10; i++) 
      {
	mes_out.number = htonl(i);

	if(send(sockfd, (char *)&mes_out, sizeof(MES),0) == -1)
	  { perror("client: write"); exit(3); }

	if(recv(sockfd, (char *)&tmp, sizeof(MES),0) == -1)
	  { perror("server: read"); exit(4); }

	mes_in.mtype = ntohl(tmp.mtype);
	mes_in.number = ntohl(tmp.number);
	fprintf(stderr, "client %d output: %d %d\n",
		getpid(), mes_in.mtype, mes_in.number);
	sleep(1);
      }
    
    close(sockfd);
    exit(0);
}