NSS_BUFLEN_AUTHATTR
char auth[NSS_BUFLEN_AUTHATTR];
char buf[NSS_BUFLEN_AUTHATTR];
tmp = _getauthattr(&auth, buf, NSS_BUFLEN_AUTHATTR, &err);
char buf[NSS_BUFLEN_AUTHATTR];
tmp = _getauthnam(name, &auth, buf, NSS_BUFLEN_AUTHATTR, &err);