From e02fd80adbc8019f30384e0b008104c66c6739bd Mon Sep 17 00:00:00 2001
From: Matthias Clasen <mclasen@redhat.com>
Date: Tue, 31 Dec 2019 16:03:33 -0500
Subject: [PATCH] dnd: Be safer

The contents of the selection are documented
to not be NULL if size is non-negative. So
use an empty string instead of NULL for size 0,
avoiding a crash.
---
 gtk/gtkdnd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gtk/gtkdnd.c b/gtk/gtkdnd.c
index e9024b6442..17dbb49876 100644
--- a/gtk/gtkdnd.c
+++ b/gtk/gtkdnd.c
@@ -171,7 +171,7 @@ gtk_drag_get_data_finish (GtkDragGetData *data,
   sdata.type = data->mime_type;
   sdata.format = 8;
   sdata.length = size;
-  sdata.data = bytes;
+  sdata.data = bytes ? bytes : (guchar *)g_strdup ("");
   sdata.display = gtk_widget_get_display (data->widget);
   
   if (site && site->target_list)
-- 
2.30.2