From 791c1e5d3b369c70852239e67a55b2e18928ba5e Mon Sep 17 00:00:00 2001
From: Jonathan <74002342+jd-imi@users.noreply.github.com>
Date: Tue, 10 Dec 2024 19:23:34 +0100
Subject: [PATCH] bacdcode.c : Fix ability to write empty string (#871)

---
 src/bacnet/bacdcode.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/bacnet/bacdcode.c b/src/bacnet/bacdcode.c
index 25af2946..f0ba3853 100644
--- a/src/bacnet/bacdcode.c
+++ b/src/bacnet/bacdcode.c
@@ -2487,6 +2487,8 @@ int bacnet_character_string_decode(
                 string_value = (const char *)&apdu[1];
                 (void)characterstring_init(
                     char_string, encoding, string_value, len_value - 1);
+            } else {
+                (void)characterstring_init(char_string, encoding, NULL, 0);
             }
             len = (int)len_value;
         }