return 0; else if (strcmp (__ypdomainname, "(none)") == 0)
__yp_check (char **domain){  char *unused;  if (__ypdomainname[0] == '\0')    if (yp_get_default_domain (&unused))      return 0;    else if (strcmp (__ypdomainname, "(none)") == 0)      return 0;  if (domain)    *domain = __ypdomainname;  if (yp_bind (__ypdomainname) == 0)    return 1;  return 0;}