From 0d75f701778a0900a58343c4c80c124279bc231f Mon Sep 17 00:00:00 2001
From: Michael <Michael@some.where>
Date: Sun, 11 Jun 2017 07:41:07 -0400
Subject: [PATCH] skip server connection if server is offline

---
 ShiftOS_TheReturn/SaveSystem.cs    | 25 ++++++++++++++++---------
 ShiftOS_TheReturn/ServerManager.cs | 24 ++++++++++++++++++++++++
 2 files changed, 40 insertions(+), 9 deletions(-)

diff --git a/ShiftOS_TheReturn/SaveSystem.cs b/ShiftOS_TheReturn/SaveSystem.cs
index 18f8f78..b9bef47 100644
--- a/ShiftOS_TheReturn/SaveSystem.cs
+++ b/ShiftOS_TheReturn/SaveSystem.cs
@@ -163,22 +163,29 @@ namespace ShiftOS.Engine
                     bool guidReceived = false;
                     ServerManager.GUIDReceived += (str) =>
                     {
-                    //Connection successful! Stop waiting!
-                    guidReceived = true;
+                        //Connection successful! Stop waiting!
+                        guidReceived = true;
                         Console.WriteLine("[inetd] Connection successful.");
                     };
 
                     try
                     {
-
-                        ServerManager.Initiate(UserConfig.Get().DigitalSocietyAddress, UserConfig.Get().DigitalSocietyPort);
-                        //This haults the client until the connection is successful.
-                        while (ServerManager.thisGuid == new Guid())
+                        if (ServerManager.ServerOnline)
                         {
-                            Thread.Sleep(10);
+                            ServerManager.Initiate(UserConfig.Get().DigitalSocietyAddress, UserConfig.Get().DigitalSocietyPort);
+                            //This haults the client until the connection is successful.
+                            while (ServerManager.thisGuid == new Guid())
+                            {
+                                Thread.Sleep(10);
+                            }
+                            Console.WriteLine("[inetd] DHCP GUID recieved, finished setup");
+                            FinishBootstrap();
+                        }
+                        else
+                        {
+                            Console.WriteLine("[inetd] No suitable network interface card found, skipping network connection.");
+                            FinishBootstrap();
                         }
-                        Console.WriteLine("[inetd] DHCP GUID recieved, finished setup");
-                        FinishBootstrap();
                     }
                     catch (Exception ex)
                     {
diff --git a/ShiftOS_TheReturn/ServerManager.cs b/ShiftOS_TheReturn/ServerManager.cs
index be4f086..00f9653 100644
--- a/ShiftOS_TheReturn/ServerManager.cs
+++ b/ShiftOS_TheReturn/ServerManager.cs
@@ -38,6 +38,7 @@ using System.Net.Sockets;
 using System.Diagnostics;
 using System.IO;
 using System.Reflection;
+using System.Net.NetworkInformation;
 
 namespace ShiftOS.Engine
 {
@@ -46,6 +47,29 @@ namespace ShiftOS.Engine
     /// </summary>
     public static class ServerManager
     {
+
+        public static bool ServerOnline
+        {
+            get
+            {
+                try
+                {
+                    Ping myPing = new Ping();
+                    String host = UserConfig.Get().DigitalSocietyAddress;
+                    byte[] buffer = new byte[32];
+                    int timeout = 1000;
+                    PingOptions pingOptions = new PingOptions();
+                    PingReply reply = myPing.Send(host, timeout, buffer, pingOptions);
+                    return (reply.Status == IPStatus.Success);
+                }
+                catch (Exception)
+                {
+                    return false;
+                }
+            }
+        }
+
+
         /// <summary>
         /// Print connection diagnostic information.
         /// </summary>