xup: fix for when Xorg/X11rdp to xup message payload is zero

9 years ago · a330789e5b
parent d4791b39e1
commit a330789e5b
1 changed files with 7 additions and 3 deletions
--- a/xup/xup.c
+++ b/xup/xup.c
@ -110,9 +110,13 @@ lib_data_in(struct trans *trans)
                g_writeln("lib_data_in: bad size");
                return 1;
            }
-            trans->header_size = len + 8;
-            trans->extra_flags = 2;
-            break;
+            if (len > 0)
+            {
+                trans->header_size = len + 8;
+                trans->extra_flags = 2;
+                break;
+            }
+            /* fall through */
        case 2:
            s->p = s->data;
            if (lib_mod_process_message(self, s) != 0)