From bf2470cec69ab00f7213aa136f5a2d486c9da17a Mon Sep 17 00:00:00 2001
From: Christian Beier <dontmind@freeshell.org>
Date: Thu, 17 Mar 2011 13:11:59 +0100
Subject: Check rfbGetScreen() return value everywhere.

This fixes a segfault when a server is invoked with the
'-help' commandline argument.
---
 examples/pnmshow.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'examples/pnmshow.c')

diff --git a/examples/pnmshow.c b/examples/pnmshow.c
index 734155f..6ced92a 100644
--- a/examples/pnmshow.c
+++ b/examples/pnmshow.c
@@ -65,6 +65,8 @@ int main(int argc,char** argv)
 
   /* initialize data for vnc server */
   rfbScreen = rfbGetScreen(&argc,argv,paddedWidth,height,8,(bitsPerPixelInFile+7)/8,bytesPerPixel);
+  if(!rfbScreen)
+    return 0;
   if(argc>1)
     rfbScreen->desktopName = argv[1];
   else
-- 
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