From a48d87dff0d266efabaf4b0312d2c228ccbd13ff Mon Sep 17 00:00:00 2001
From: Henning Westerholt <hw@skalatan.de>
Date: Tue, 12 Nov 2019 12:18:06 +0100
Subject: [PATCH] core: bug fix in str2ipbuf, return an error for invalid input
 parameter

---
 src/core/resolve.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/resolve.c b/src/core/resolve.c
index ac9b2f23630..af269a2b429 100644
--- a/src/core/resolve.c
+++ b/src/core/resolve.c
@@ -1738,7 +1738,7 @@ int str2ipbuf(str* st, ip_addr_t* ipb)
 	/* just in case that e.g. the VIA parser get confused */
 	if(unlikely(!st->s || st->len <= 0)) {
 		LM_ERR("invalid name, no conversion to IP address possible\n");
-		return 0;
+		return -1;
 	}
 	s=(unsigned char*)st->s;