#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include "uicimult.h"

#define HOSTARG 1
#define PORTARG 2
#define NUMARGS 3
#define TTLARG 3

#define MAXLINE 256
int main(int argc, char *argv[])
{

   u_short port; 
   char ttl = 1 ; int s ;
   char line[MAXLINE] = "hello world";
   int n = 0 ; 
   char host[MAXLINE] ; size_t len ;
   s = gethostname(host, sizeof(host));

   if (argc < NUMARGS) {
      fprintf(stderr, "Usage: %s Host(dotted IP address) Port [TTL]\n", argv[0]);
      exit(1);
   }
   if (argc >= 4) {
     ttl = (int)atoi(argv[TTLARG]) ;
   }
   if (argc >= 5) {
     sprintf(line,"%s: %s",host,argv[4]) ;
   }

   port = (u_short)atoi(argv[PORTARG]);
 
   if (u_joinMULTSend(argv[HOSTARG], port,ttl ) == -1) {
      perror("Sender failed to join multicast group --- ");
      fprintf(stderr, "%s: host = %s, port = %d\n", argv[0], 
              argv[HOSTARG], port);
      exit(1);
   }

   while (1) {
     if (argc < 5) {
       n++ ;
       sprintf(line,"%s: %d",host,n) ;
       printf("%s: %d\n",host,n) ;
     }
    

     if (u_sendMULT(line, strlen(line)) == -1) {
        perror("Sender failed to send line --- ");
        exit(1);
     }
     sleep(1) ;
  }
}