diff --git a/inc/api/API.h b/inc/api/API.h
index 5c3e3c2..d2f4f75 100644
--- a/inc/api/API.h
+++ b/inc/api/API.h
@@ -4,9 +4,9 @@
 
 #pragma once
 
+#include "Hashmap.h"
 
 #include <string>
-#include "Hashmap.h"
 
 class API {
 public:
diff --git a/inc/api/IPAPI.h b/inc/api/IPAPI.h
index fbcfd48..ed67133 100644
--- a/inc/api/IPAPI.h
+++ b/inc/api/IPAPI.h
@@ -4,9 +4,10 @@
 
 #pragma once
 
-#include <string>
 #include "API.h"
 
+#include <string>
+
 class IPAPI : API{
 public:
     /**
diff --git a/inc/api/TelegramAPI.h b/inc/api/TelegramAPI.h
index 5cdaaf0..676cfd5 100644
--- a/inc/api/TelegramAPI.h
+++ b/inc/api/TelegramAPI.h
@@ -4,9 +4,9 @@
 
 #pragma once
 
+#include "API.h"
 
 #include <string>
-#include "API.h"
 
 class TelegramAPI : API {
 public:
diff --git a/src/Config.cpp b/src/Config.cpp
index 8fdfd2f..50052ac 100644
--- a/src/Config.cpp
+++ b/src/Config.cpp
@@ -2,14 +2,14 @@
 // Created by lukas on 11.02.20.
 //
 
-#include <Config.h>
-#include <Logger.h>
+#include "Config.h"
+#include "Logger.h"
+#include "Version.h"
 
 #include <iostream>
 #include <cstring>
 #include <fstream>
 #include <libconfig.h++>
-#include <Version.h>
 
 std::string Config::dynuapikey;
 std::string Config::domainid; //id of the dynu domain
diff --git a/src/FileLogger.cpp b/src/FileLogger.cpp
index 79b1a5d..4468e09 100644
--- a/src/FileLogger.cpp
+++ b/src/FileLogger.cpp
@@ -2,10 +2,11 @@
 // Created by lukas on 05.05.19.
 //
 
+#include "FileLogger.h"
+
 #include <fstream>
 #include <iostream>
-
-#include "FileLogger.h"
+#include <climits>
 
 void FileLogger::safeip(std::string ip) {
     std::ofstream out;
@@ -24,5 +25,9 @@ std::string FileLogger::readip() {
 
     in >> ip;
 
-    return ip;
+    // when received ip has no : return 0.0.0.0
+    if (ip.find(':') == ULONG_MAX)
+        return "0.0.0.0";
+    else
+        return ip;
 }
diff --git a/src/IPRefresher.cpp b/src/IPRefresher.cpp
index 724129c..41347f3 100644
--- a/src/IPRefresher.cpp
+++ b/src/IPRefresher.cpp
@@ -2,20 +2,19 @@
 // Created by lukas on 02.08.19.
 //
 
+#include "IPRefresher.h"
+#include "FileLogger.h"
+#include "api/IPAPI.h"
+#include "api/DynuAPI.h"
+#include "api/TelegramAPI.h"
+#include "Config.h"
+#include "Version.h"
+
 #include <string>
-
-#include <FileLogger.h>
-#include <api/IPAPI.h>
-#include <api/DynuAPI.h>
-#include <api/TelegramAPI.h>
-
 #include <chrono>
 #include <thread>
 #include <Logger.h>
-
-#include <IPRefresher.h>
-#include <Config.h>
-#include <Version.h>
+#include <climits>
 
 void IPRefresher::checkIPAdress(bool force) {
     FileLogger logger;
@@ -26,6 +25,9 @@ void IPRefresher::checkIPAdress(bool force) {
     if (ip.empty()) {
         //no internet connection (or other error)
         Logger::warning("no internet connection");
+    } else if (ip.find(':') == ULONG_MAX) {
+        // error when ip doesn't contain a :
+        Logger::warning("an error occured when getting the global ip");
     } else {
         std::string oldip = logger.readip();
 
diff --git a/src/Logger.cpp b/src/Logger.cpp
index 77a81ca..2bfbabe 100644
--- a/src/Logger.cpp
+++ b/src/Logger.cpp
@@ -2,11 +2,11 @@
 // Created by lukas on 26.10.19.
 //
 
+#include "Logger.h"
+
 #include <sstream>
 #include <iostream>
 
-#include "Logger.h"
-
 void Logger::debug(const std::string message) {
     log(message, Logger::Debug);
 }
diff --git a/src/api/API.cpp b/src/api/API.cpp
index e246450..b41cd89 100644
--- a/src/api/API.cpp
+++ b/src/api/API.cpp
@@ -7,7 +7,6 @@
 #include <sstream>
 #include <curl/curl.h>
 
-
 std::string API::request(std::string myurl) {
     Hashmap<std::string, std::string> map;
     std::vector<std::string> str;
diff --git a/src/api/TelegramAPI.cpp b/src/api/TelegramAPI.cpp
index 00131ac..0c26a34 100644
--- a/src/api/TelegramAPI.cpp
+++ b/src/api/TelegramAPI.cpp
@@ -3,8 +3,9 @@
 //
 
 #include "api/TelegramAPI.h"
+#include "Logger.h"
 
-#include <Logger.h>
+#include <climits>
 
 int TelegramAPI::sendMessage(const std::string& text) {
     Hashmap<std::string, std::string> args;
@@ -15,8 +16,7 @@ int TelegramAPI::sendMessage(const std::string& text) {
 
     std::string reply = request("https://api.telegram.org/bot" + apikey + "/sendmessage", false, args, headers);
 
-    unsigned long ulongmax = -1;
-    if (reply.find("\"error_code\"") != ulongmax) {
+    if (reply.find("\"error_code\"") != ULONG_MAX) {
         Logger::error("failed to refresh the ip (Dynu API)");
         return -1;
     }
diff --git a/src/main.cpp b/src/main.cpp
index 4eb5fec..141e5f5 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2,12 +2,14 @@
 // Created by lukas on 18.06.19.
 //
 
-#include <Version.h>
-#include <IPRefresher.h>
-#include <Logger.h>
-#include <Config.h>
+#include "Version.h"
+#include "IPRefresher.h"
+#include "Logger.h"
+#include "Config.h"
+#include "api/IPAPI.h"
 
 #include <iostream>
+
 /**
  * application entry point
  */
@@ -20,6 +22,7 @@ int main(int argc, char *argv[]) {
                       << "[-f] [--force] force refresh of ip" << std::endl
                       << "[-l] [--loop] infinite loop to refresh ip every five minutes" << std::endl
                       << "[-c] [--checkconfig] validate configuration" << std::endl
+                      << "[-ip] [--currentip] get current global ip" << std::endl
                       << "[no argument] normal ip check and refresh" << std::endl;
         } else if (firstarg == "-v" || firstarg == "--version") {
             std::cout << "Version " << Version::VERSION << std::endl;
@@ -40,6 +43,9 @@ int main(int argc, char *argv[]) {
                 Logger::warning("There are errors in config file!");
                 return -1;
             }
+        } else if (firstarg == "-ip" || firstarg == "--currentip") {
+            IPAPI ipapi;
+            std::cout << "Current global IP: " << ipapi.getGlobalIp() << std::endl;
         } else {
             Logger::message("wrong arguments!  -h for help");
         }