From 41b1eca7a62d450bc0d2357027a6be6acd51a7a6 Mon Sep 17 00:00:00 2001
From: Joachim Tingvold <joachim@tingvold.com>
Date: Wed, 1 Apr 2015 03:49:53 +0200
Subject: Changes...

---
 fap/tools/tools_includes/ipcalc_functions.php | 134 ++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 fap/tools/tools_includes/ipcalc_functions.php

(limited to 'fap/tools/tools_includes/ipcalc_functions.php')

diff --git a/fap/tools/tools_includes/ipcalc_functions.php b/fap/tools/tools_includes/ipcalc_functions.php
new file mode 100644
index 0000000..e848ef1
--- /dev/null
+++ b/fap/tools/tools_includes/ipcalc_functions.php
@@ -0,0 +1,134 @@
+<?php
+    /*
+        Mainly copied from djamps's work - https://github.com/djamps/php-ipv6-calculator/blob/master/ipcalc.php
+        Edited by Jonas Lindstad for The Gathering 2015
+        Licensed under GPL
+    */
+    
+    
+    
+    // Convert array of short unsigned integers to binary
+    function _packBytes($array) {
+        foreach ( $array as $byte ) {
+            $chars .= pack('C',$byte);
+        }
+        return $chars;
+    }
+    
+    
+    // Convert binary to array of short integers
+    function _unpackBytes($string) {
+        return unpack('C*',$string);
+    }
+    
+    
+    // Add array of short unsigned integers
+    function _addBytes($array1,$array2) {
+        $result = array();
+        $carry = 0;
+        foreach ( array_reverse($array1,true) as $value1 ) {
+            $value2 = array_pop($array2);
+            if ( empty($result) ) { $value2++; }
+            $newValue = $value1 + $value2 + $carry;
+            if ( $newValue > 255 ) {
+                $newValue = $newValue - 256;
+                $carry = 1;
+            } else {
+                $carry = 0;
+            }
+            array_unshift($result,$newValue);
+        }
+        return $result;
+    }
+    
+    
+    /* Useful Functions */
+    function _cdr2Bin ($cdrin,$len=4){
+        if ( $len > 4 || $cdrin > 32 ) { // Are we ipv6?
+            return str_pad(str_pad("", $cdrin, "1"), 128, "0");
+        } else {
+            return str_pad(str_pad("", $cdrin, "1"), 32, "0");
+        }
+    }
+    
+    
+    function _bin2Cdr ($binin){
+        return strlen(rtrim($binin,"0"));
+    }
+    
+    
+    function _cdr2Char ($cdrin,$len=4){
+        $hex = _bin2Hex(_cdr2Bin($cdrin,$len));
+        return _hex2Char($hex);
+    }
+    
+    
+    function _char2Cdr ($char){
+        $bin = _hex2Bin(_char2Hex($char));
+        return _bin2Cdr($bin);
+    }
+    
+    
+    function _hex2Char($hex){
+        return pack('H*',$hex);
+    }
+    
+    
+    function _char2Hex($char){
+        $hex = unpack('H*',$char);
+        return array_pop($hex);
+    }
+    
+    
+    function _hex2Bin($hex){
+        $bin='';
+        for($i=0;$i<strlen($hex);$i++)
+            $bin.=str_pad(decbin(hexdec($hex{$i})),4,'0',STR_PAD_LEFT);
+        return $bin;
+    }
+    
+    
+    function _bin2Hex($bin){
+        $hex='';
+        for($i=strlen($bin)-4;$i>=0;$i-=4)
+            $hex.=dechex(bindec(substr($bin,$i,4)));
+        return strrev($hex);
+    }
+    
+    /*
+        Converts a v4/v6 subnet to the first usable IP
+    */
+    function net_to_gw($net){
+        $maxSubNets = '2048'; // Stop memory leak from invalid input or large ranges
+        $charHost = inet_pton(strtok($net, '/'));
+        $charMask = _cdr2Char(strtok('/'),strlen($charHost));
+        $charHostMask = substr(_cdr2Char(127),-strlen($charHost));
+        $charNet = $charHost & $charMask; // Supernet network address
+        $charHostMin = $charNet | ~$charHostMask;
+        return inet_ntop($charHostMin);
+    }
+    
+    
+    
+
+
+
+
+
+/*
+
+    $maxSubNets = '2048'; // Stop memory leak from invalid input or large ranges
+    $superNet = '2a02:ed02:180a::13/64';
+    if (ereg('/',$superNet)){ //if cidr type mask
+        $charHost = inet_pton(strtok($superNet, '/'));
+        $charMask = _cdr2Char(strtok('/'),strlen($charHost));
+    }
+    
+    $charHostMask = substr(_cdr2Char(127),-strlen($charHost));
+    $charNet = $charHost & $charMask; // Supernet network address
+    $charHostMin = $charNet | ~$charHostMask;
+    echo 'Første brukbare adresse i ' . $superNet . ': ';
+    echo inet_ntop($charHostMin);
+*/
+    
+?>
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