/* this is a UDP sender */

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <signal.h>
#include <stdio.h>

int main(int argc, char *argv[])
{
  int sockfd;
  struct sockaddr_in servaddr;
  char buf[100000];

  if (argc < 3) {
    printf("Usage : a.out IPaddr port\n");
    exit(0);
  }

  memset(&servaddr, 0, sizeof(servaddr));
  servaddr.sin_family = AF_INET;
  servaddr.sin_port = htons((int)atoi(argv[2]));
  servaddr.sin_addr.s_addr = inet_addr(argv[1]);

  if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
    perror(": socket");
    exit(0);
  }

  
 
  { int i;
     buf[0] = '\0';
     for (i=0; i< 1000; i++) {
       sendto(sockfd, buf, 1, 0, (struct sockaddr *)&servaddr, sizeof(servaddr));
      if (i && (i % 20 == 0)) sleep(1);
     }
  }
  
 

  /*
  while (1) {
    fgets(buf, 1000, stdin);
    sendto(sockfd, buf, strlen(buf), 0, (struct sockaddr *)&servaddr, sizeof(servaddr));
  }
  */

}