lib/ip.php

   1 <?php
   2
   3 class ip {
   4
   5         static function isValid($ip, $mask = 0)
   6         {
   7                 $ipv4 = ereg('^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$', $ip);
   8                 $ipv6 = ereg("^[0-9a-fA-F:]+$", $ip);
   9
  10                 if(!$ipv6&&!$ipv4) return false;
  11
  12                 if($ipv6!=false) {
  13                         if($mask != 0) {
  14                                 if($mask%16 != 0) {
  15                                         error_log("no");
  16                                         return false;
  17                                 } else {
  18                                         $sns = $mask / 16;
  19
  20                                         // now check that we have $sns number of subnets specified
  21                                         $pss = explode(":", $ip);
  22                                         $ns = count($pss);
  23
  24                                         // we need to specify an error we can throw back at the user
  25                                         if($ns < $sns) {
  26                                                 error_log("no 2, $ns, $sns, $ip");
  27                                                 print_r($pss);
  28                                                 return false;
  29                                         }
  30                                         for($i = 0; $i < $sns; $i++) {
  31                                                 if(strlen($pss[$i]) < 1) {
  32                                                         error_log("no 3");
  33                                                         return false;
  34                                                 }
  35                                         }
  36
  37                                         // we are still a valid ipv6 ip address/mask
  38                                         error_log("Valid");
  39                                         return true;
  40                                 }
  41                         }
  42                 }
  43
  44                 if($ipv4!=false) {
  45                         if($mask != 0) {
  46
  47                         }
  48                 }
  49         }
  50
  51         static function truncateNetwork($ip, $mask)
  52         {
  53                 $ipv4 = ereg('^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$', $ip);
  54                 $ipv6 = ereg("^[0-9a-fA-F:]+$", $ip);
  55
  56                 if(!$ipv6&&!$ipv4) return false;
  57
  58                 if($ipv6!=false) {
  59                         if($mask != 0) {
  60                                 if($mask%16 != 0) {
  61                                         error_log("no");
  62                                         return false;
  63                                 } else {
  64                                         $sns = $mask / 16;
  65
  66                                         // now check that we have $sns number of subnets specified
  67                                         $pss = explode(":", $ip);
  68                                         $ns = count($pss);
  69
  70                                         // we need to specify an error we can throw back at the user
  71                                         if($ns < $sns) {
  72                                                 error_log("no 2, $ns, $sns, $ip");
  73                                                 print_r($pss);
  74                                                 return false;
  75                                         }
  76
  77                                         $slt = "";
  78                                         for($i = 0; $i < $sns; $i++) {
  79                                                 if(strlen($pss[$i]) < 1) {
  80                                                         error_log("no 3");
  81                                                         return false;
  82                                                 }
  83                                                 $slt .= $pss[$i].":";
  84                                         }
  85                                         $slt .= ":0";
  86
  87                                         // we are still a valid ipv6 ip address/mask
  88                                         error_log("Valid");
  89                                         return $slt;
  90                                 }
  91                         }
  92                 }
  93
  94                 if($ipv4!=false) {
  95                         if($mask != 0) {
  96
  97                         }
  98                 }
  99         }
 100
 101         function addSupernet($supernet)
 102         {
 103
 104         }
 105
 106         function addSubnet($subnet)
 107         {
 108
 109         }
 110
 111         function isConflicting($subnet)
 112         {
 113
 114         }
 115
 116         public $supers = "";
 117         public $subs = "";
 118 }
 119 ?>