From cbccd7105921d991375dedccb3f7de4b5229ef78 Mon Sep 17 00:00:00 2001
From: Steffen Lange <github@stelas.de>
Date: Fri, 5 Apr 2019 18:55:31 +0200
Subject: [PATCH] Import source

---
 .htaccess  |  8 ++++++++
 echoip.php | 20 ++++++++++++++++++++
 2 files changed, 28 insertions(+)
 create mode 100644 .htaccess
 create mode 100644 echoip.php

diff --git a/.htaccess b/.htaccess
new file mode 100644
index 0000000..1c6e58b
--- /dev/null
+++ b/.htaccess
@@ -0,0 +1,8 @@
+<IfModule mod_rewrite.c>
+RewriteEngine On
+RewriteBase /
+RewriteRule ^$ echoip.php [L]
+RewriteCond %{REQUEST_FILENAME} !-f
+RewriteCond %{REQUEST_FILENAME} !-d
+RewriteRule (.*) echoip.php?cmd=$1 [L]
+</IfModule>
diff --git a/echoip.php b/echoip.php
new file mode 100644
index 0000000..4a724ff
--- /dev/null
+++ b/echoip.php
@@ -0,0 +1,20 @@
+<?php
+	ini_set('default_charset', 'iso-8859-1');
+	header('Content-Type: text/plain');
+	$ip = $_SERVER['REMOTE_ADDR'];
+	if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
+		$cmd = isset($_GET['cmd']) ? $_GET['cmd'] : '';
+		if ($cmd === 'long') {
+			printf('%u', ip2long($ip));
+		}
+		elseif ($cmd === 'hostname') {
+			echo gethostbyaddr($ip);
+		}
+		else {
+			echo $ip;
+		}
+	}
+	else {
+		echo $ip;
+	}
+?>