/*
 * Example of client using TCP protocol.
 */

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

#include "message.h"

#define SERV_HOST_ADDR "156.12.127.18"
/* acad's Internet address, defined in /etc/hosts */

main(argc, argv)
int argc;
char *argv[];
{
    int sockfd, i;
    struct sockaddr_in serv_addr;
    int SERV_TCP_PORT;
    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];

    /* create a socket which is one end of a communication channel */
    if((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
    { perror("client: cannot open stream socket"); exit(1);  }

    /* specify server address */
    bzero((char *) &serv_addr, sizeof(serv_addr));
    serv_addr.sin_family = AF_INET;  /* address family: Internet */
    serv_addr.sin_addr.s_addr = inet_addr(SERV_HOST_ADDR);
    serv_addr.sin_port = htons(SERV_TCP_PORT);

    mes_out.mtype = htonl(getpid());

    for(i=0; i<10; i++) 
      {

	if (i==5){ 
	 mes_out.number = htonl(i+10000);
	 sendto(sockfd,&mes_out,sizeof(MES),MSG_OOB,
		(struct sockaddr *)&serv_addr,sizeof(serv_addr));
	 fprintf(stderr,"Sent out of band data to server - value %d\n",
				i+10000);
	}
	mes_out.number = htonl(i);
	if(sendto(sockfd, &mes_out, sizeof(MES),0,
		(struct sockaddr *)&serv_addr,sizeof(serv_addr)) == -1)
	  { perror("client: write"); exit(3); }
	fprintf(stderr,"Sent %d to server\n",i);
/*
	if(read(sockfd, &tmp, sizeof(MES)) == -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);
}