From fb0248f5572f9f8c5727731c5d065459238c0eeb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Helleu?= <flashcode@flashtux.org>
Date: Wed, 22 Feb 2023 20:38:56 +0100
Subject: core: fix crash in case of NULL message sent to function
 gui_chat_printf_y_date_tags (closes #1883)

---
 src/gui/gui-chat.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src')

diff --git a/src/gui/gui-chat.c b/src/gui/gui-chat.c
index 7b89f2a0f..6841b95ff 100644
--- a/src/gui/gui-chat.c
+++ b/src/gui/gui-chat.c
@@ -906,6 +906,9 @@ gui_chat_printf_y_date_tags (struct t_gui_buffer *buffer, int y, time_t date,
     time_t date_printed;
     int i, last_y, num_lines_to_add;
 
+    if (!message)
+        return;
+
     if (gui_init_ok && !gui_chat_buffer_valid (buffer, GUI_BUFFER_TYPE_FREE))
         return;
 
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