# HG changeset patch
# User John W. Eaton <jwe@octave.org>
# Date 1420741130 18000
# Node ID c332c72d496078ea22704a60e6a4dedbb020503a
# Parent  7c0e20def8e334c9fca5a87cb0182979753ba1c3
prevent completely invalid call to __player_audioplayer__

* audiodevinfo.cc (F__player_audioplayer__): Check nargin.

diff -r 7c0e20def8e3 -r c332c72d4960 libinterp/dldfcn/audiodevinfo.cc
--- a/libinterp/dldfcn/audiodevinfo.cc	Thu Jan 08 13:16:57 2015 -0500
+++ b/libinterp/dldfcn/audiodevinfo.cc	Thu Jan 08 13:18:50 2015 -0500
@@ -2285,6 +2285,12 @@
 
   int nargin = args.length ();
 
+  if (nargin < 2 || nargin > 4)
+    {
+      print_usage ();
+      return retval;
+    }
+
   audioplayer* recorder = new audioplayer ();
 
   bool is_function = args(0).is_string () || args(0).is_function_handle () || args(0).is_inline_function ();