/*
** strrchr(s,c) - Search for rightmost occurence of c.
** s = pointer to string being searched
** c = character to search for
** Returns pointer to rightmost c or NULL.
*/
strrchr(s, c) char *s, c; {
  char *ptr;
  ptr = 0;
  while(*s) {
    if(*s==c) ptr = s;
    ++s;
    }
  return (ptr);
  }