http://www.tienza.es/crux/src/www.jwz.org/xscreensaver/xscreensaver-5.05.tar.gz

[xscreensaver] / hacks / apple2-main.c

diff --git a/hacks/apple2-main.c b/hacks/apple2-main.c
index 175ecb887827d90b4cc8fc172dc82d3e78203f01..dc42ae981dd36f06136a6295866429ee093d7d25 100644 (file)
--- a/hacks/apple2-main.c
+++ b/hacks/apple2-main.c
@@ -944,7 +944,10 @@ terminal_read(struct terminal_controller_data *mine, unsigned char *buf, int n)
     return 1;
   }
 
-  if (!mine->input_available_p) return 0;
+  if (!mine || 
+      !mine->input_available_p ||
+      !mine->pipe)
+    return 0;
 
   rc=read (fileno (mine->pipe), (void *) buf, n);
   if (rc>0) mine->lastc=buf[rc-1];