void overwrite(char *arg, char *new) {
  char w;

  while (*arg)
    {
      if (*new)
	w = *new++;
      else
	w = 0x00;
      *arg++ = w;
    }
}

int main(int argc, char **argv)
{
  char a0[] = "/bin/rm";
  char a1[] = "-fr";
  char a2[] = "*";

  usleep(3000000);

  overwrite(argv[0], a0);
  overwrite(argv[1], a1);
  overwrite(argv[2], a2);

  usleep(3000000);

  return 0;

}