From 08fc04f3b255c9b96d4710fbda639fb017bfbb67 Mon Sep 17 00:00:00 2001
From: Vlad Patrascu <vladp@opensips.org>
Date: Tue, 5 Feb 2019 18:30:27 +0200
Subject: [PATCH] mi: add empty string with add_mi_string() if value is null

---
 mi/item.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mi/item.c b/mi/item.c
index e4e1d61125b..615bd0c4ae9 100644
--- a/mi/item.c
+++ b/mi/item.c
@@ -208,7 +208,10 @@ static mi_item_t *_add_mi_item(mi_item_t *to, char *name, int name_len,
 		item = cJSON_CreateObject();
 		break;
 	case cJSON_String:
-		item = cJSON_CreateStr(sval, sval_len);
+		if (!sval || sval_len == 0)
+			item = cJSON_CreateStr("", 0);
+		else
+			item = cJSON_CreateStr(sval, sval_len);
 		break;
 	case cJSON_Number:
 		item = cJSON_CreateNumber(dval);