enum nss_status check_nonlocal_user(const char *user, int *errnop);
enum nss_status get_nonlocal_passwd(const char *name, struct passwd *pwd,
char **buffer, int *errnop);
enum nss_status check_nonlocal_user(const char *user, int *errnop);
enum nss_status get_nonlocal_passwd(const char *name, struct passwd *pwd,
char **buffer, int *errnop);