#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 1024
int main(int argc, char *argv[]) {

   u_short port; 
   char line[MAXLINE];
   int nbytes;
   char ttl = 1 ; int s ;

   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]) ;
   }


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

   while (1) {

     if ((nbytes = u_recvMULT(line, MAXLINE-1)) == -1) {
        perror("Receiver failed to get line --- ");
        exit(1);
     }
     line[nbytes] = '\0';
     fprintf(stderr, "received %d bytes: %s\n", nbytes, line);
     fputs(line,stdout);
  }
}