server: Return a more correct fd type for anonymous files.
diff --git a/server/protocol.def b/server/protocol.def
index 02dee2d..8e50119 100644
--- a/server/protocol.def
+++ b/server/protocol.def
@@ -897,6 +897,7 @@
     FD_TYPE_SERIAL,   /* serial port */
     FD_TYPE_PIPE,     /* named pipe */
     FD_TYPE_MAILSLOT, /* mailslot */
+    FD_TYPE_CHAR,     /* unspecified char device */
     FD_TYPE_DEVICE,   /* Windows device file */
     FD_TYPE_NB_TYPES
 };