Description: ------------ Uncompressing an IPv4-mapped/compatible IPv6 address produced an address with 9 octets. The problem manifiests itself when splitting on '::' and counting the number of remaining ':'. An IPv4 address is actually 2 octets in an IPv6 address. This was not taken into account. The code below fixes that problem. Reproduce code: --------------- function Uncompress($ip) { ... if(""==$ip2) { $c2 = -1; } else { $pos = 0; if(0 < ($pos = substr_count($ip2, ':'))) { $c2 = $pos; } else { $c2 = 0; } } //************************************************ // Account for ::FFFF:127.0.0.1 and ::127.0.0.1 // (IPv4-mapped/compatible IPv6 addresses) if(strstr($ip2, '.')) { $c2++; } //************************************************ if(-1 == $c1 && -1 == $c2) { // :: $uip = "0:0:0:0:0:0:0:0"; } else if(-1==$c1) { // ::xxx $fill = str_repeat('0:', 7-$c2); $uip = str_replace('::', $fill, $uip); } else if(-1==$c2) { // xxx:: $fill = str_repeat(':0', 7-$c1); $uip = str_replace('::', $fill, $uip); } else { // xxx::xxx $fill = str_repeat(':0:', 6-$c2-$c1); $uip = str_replace('::', $fill, $uip); $uip = str_replace('::', ':', $uip); } } return $uip; }

I will deal with it during the next days.

Thank you for your bug report. This issue has been fixed in the latest released version of the package, which you can download at http://pear.php.net/get/Net_IPv6