init.rb in rwddemo-0.8 vs init.rb in rwddemo-0.90

@@ -226,8 +226,44 @@
 
    fileB=File.open(RWDFile,"w")        #deletes and opens a the file in fileName
    fileB.write($tempdoc)                     #writes the contents of doc into the file
    fileB.close
    
-   
+   require 'socket'		# Network stuff
+    host = "127.0.0.1"
+	 port = $port
+	 
+	 # Create a socket to listen on and bind it to the host and port 
+	 freeportfound = false
+   until freeportfound
+   begin
+		@socket = UDPSocket::new()
+		@socket.bind(host, port)
+    freeportfound = true
+$port = port
+	 # Rescue the "Address in use" error
+	 rescue Errno::EADDRINUSE
+		 puts "RWD Startup: Port #{port} on host #{host} is already in use."
+		port=port +1
+    puts "trying port: #{port}"
+	 # Rescue the "Address not available' error
+	 rescue Errno::EADDRNOTAVAIL
+		puts "RWD Startup: Address #{host} is not available to bind."
+		port =port + 1
+	  puts "trying port: #{port}"
+   # Rescue "permission denied errors
+    rescue Errno::EACCES
+		puts "RWD Startup: Access denied when binding interface addresses. ?"
+			port =port + 1
+       puts "trying port: #{port}"
+	 # Rescue all other errors
+	 rescue
+   puts "RWD Startup: An error occured."
+		port =port + 1
+     puts "trying port: #{port}"
+	 # Rescue all other errors
+	 end
 
-RwdTinker.file(RWDFile).serve($port) # start the main class and program
+end
+
+
+RwdTinker.file(RWDFile).serve(port) # start the main class and program