*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <sys/time.h>
#include <sys/resource.h>

int
main ()
{
  char x;
  int ret = 0;
  long fails = 0;
  int fd = 0;
  int flags = 0;
  unsigned long dataprocessed = 0;

  fd = fileno (stdin);
  flags = fcntl (fd, F_GETFL, 0);
  flags |= O_NONBLOCK;
  fcntl (fd, F_SETFL, flags);
  while (1)
    {
      ret = fread (&x, sizeof (char), 1, stdin);
      if (ret <= 0 && errno == EAGAIN)
	{
	  /* No data to recieve */
	  printf ("Error read file: %s\n", strerror (errno));

	  continue;
	}

      if (errno == EWOULDBLOCK && ret == 0)
	{
	  //printf("BLOCKING \n\r");
	  fails++;
	}
      else
	{
	  if (ret > 0)
	    {
	      /* data flows */
	      fwrite (&x, sizeof (x), 1, stdout);
	      fails = 0;
	      //printf("ret: %d\n\r",sizeof(x));
	      dataprocessed++;
	    }
	}

      if (fails > 500000)
	{
	  printf ("%d FAILURES DETECTED %ld bytes Processed\n\r", fails,
		  dataprocessed);
	  exit (0);
	}
    }
  return 0;
}