From badb6435d616066a8648152a24a09f9e090a6e5e Mon Sep 17 00:00:00 2001
From: Michael Adam <obnox@samba.org>
Date: Thu, 16 Nov 2017 01:53:21 +0100
Subject: [PATCH] upstream: Fix case of empty string domain.

Found by compiler note.

Signed-off-by: Michael Adam <obnox@samba.org>
---
 src/upstream.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/upstream.c b/src/upstream.c
index 38afacd..327b727 100644
--- a/src/upstream.c
+++ b/src/upstream.c
@@ -124,7 +124,7 @@ static struct upstream *upstream_build (const char *host, int port, const char *
                 log_message (LOG_INFO, "Added no-upstream for %s", domain);
         } else {
                 if (!host || host[0] == '\0' || port < 1 || !domain
-                    || domain == '\0') {
+                    || domain[0] == '\0') {
                         log_message (LOG_WARNING,
                                      "Nonsense upstream rule: invalid parameters");
                         goto fail;