passwd_unpack_string
error = passwd_unpack_string(nvl, "pw_name", &pwd->pw_name, &buffer,
error = passwd_unpack_string(nvl, "pw_passwd", &pwd->pw_passwd, &buffer,
error = passwd_unpack_string(nvl, "pw_class", &pwd->pw_class, &buffer,
error = passwd_unpack_string(nvl, "pw_gecos", &pwd->pw_gecos, &buffer,
error = passwd_unpack_string(nvl, "pw_dir", &pwd->pw_dir, &buffer,
error = passwd_unpack_string(nvl, "pw_shell", &pwd->pw_shell, &buffer,