From 7d2b6a390290cf7f1b72e8661ed3a3b58940c5d8 Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Wed, 19 Feb 2020 16:32:35 +0100
Subject: [PATCH] carddav: make Discover fail when target is empty

---
 carddav/client.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/carddav/client.go b/carddav/client.go
index 82dc61d..d649aa4 100644
--- a/carddav/client.go
+++ b/carddav/client.go
@@ -36,7 +36,7 @@ func Discover(domain string) (string, error) {
 
 	target := strings.TrimSuffix(addr.Target, ".")
 	if target == "" {
-		return "", nil
+		return "", fmt.Errorf("carddav: empty target in SRV record")
 	}
 
 	u := url.URL{Scheme: "https"}