X-Git-Url: http://git.tuebingen.mpg.de/?a=blobdiff_plain;f=client_common.c;h=a3a471aedaab1f79a3f3091bf61572a716248598;hb=36ba180901dd97003208ee6c51b0795cf351cb03;hp=7bdb4738bab5feb15b4c7acb1180decb61ccfda5;hpb=f652ce6afe7f6fd0e42814505234cbf4321a736e;p=paraslash.git

diff --git a/client_common.c b/client_common.c
index 7bdb4738..a3a471ae 100644
--- a/client_common.c
+++ b/client_common.c
@@ -345,6 +345,11 @@ static void client_post_select(struct sched *s, struct task *t)
 		if (ret < 0 || n == 0)
 			goto out;
 		ct->features = parse_features(buf);
+		if (!has_feature("sideband", ct)) {
+			PARA_ERROR_LOG("server has no sideband support\n");
+			ret = -E_INCOMPAT_FEAT;
+			goto out;
+		}
 		ct->status = CL_RECEIVED_WELCOME;
 		return;
 	case CL_RECEIVED_WELCOME: /* send auth command */