From f193cf92b2c925a2f3f71a713d766efd1e4d81e0 Mon Sep 17 00:00:00 2001
From: "Simon Cornelius P. Umacob" <simoncpu@gmail.com>
Date: Tue, 20 Jan 2009 15:52:39 +0800
Subject: Merge IPv6 changes

---
 etc/inc/util.inc | 64 ++++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 44 insertions(+), 20 deletions(-)

(limited to 'etc/inc/util.inc')

diff --git a/etc/inc/util.inc b/etc/inc/util.inc
index 3ef01fc..7b8ebe8 100644
--- a/etc/inc/util.inc
+++ b/etc/inc/util.inc
@@ -27,6 +27,8 @@
 	POSSIBILITY OF SUCH DAMAGE.
 */
 
+require_once 'IPv6.inc';
+
 /* kill a process by pid file */
 function killbypid($pidfile) {
 	sigkillbypid($pidfile, "TERM");
@@ -120,9 +122,8 @@ function is_ipaddr($ipaddr) {
 		return false;
 }
 
-/* returns true if $ipaddr is a valid dotted IPv4 address or an alias thereof */
+/* returns true if $ipaddr is a valid IPv4/IPv6 address or an alias thereof */
 function is_ipaddroralias($ipaddr) {
-
 	global $aliastable, $config;
 
 	if(is_array($config['aliases']['alias'])) {
@@ -132,22 +133,22 @@ function is_ipaddroralias($ipaddr) {
 		}
 	}
 
-	if (isset($aliastable[$ipaddr]) && is_ipaddr($aliastable[$ipaddr]))
+	if (isset($aliastable[$ipaddr]) && (is_ipaddr($aliastable[$ipaddr]) || Net_IPv6::checkIPv6($aliastable[$ipaddr]))) {
 		return true;
-	else
-		return is_ipaddr($ipaddr);
-
+	} else {
+		return (is_ipaddr($ipaddr) || Net_IPv6::checkIPv6($ipaddr));
+	}
 }
 
 /* returns true if $ipaddr is a valid dotted IPv4 address or any alias */
 function is_ipaddroranyalias($ipaddr) {
-
 	global $aliastable;
 
-	if (isset($aliastable[$ipaddr]))
+	if (isset($aliastable[$ipaddr])) {
 		return true;
-	else
-		return is_ipaddr($ipaddr);
+	} else {
+		return (is_ipaddr($ipaddr) || Net_IPv6::checkIPv6($ipaddr));
+	}
 }
 
 /* returns true if $subnet is a valid subnet in CIDR format */
@@ -166,6 +167,26 @@ function is_subnet($subnet) {
 	return true;
 }
 
+/* returns true if $subnet is a valid IPv6 network address */
+function is_subnet_ipv6($subnet, $max = 64) {
+	if (!is_string($subnet)) {
+		return false;
+	}
+
+	list ($hp, $np) = explode('/', $subnet);
+
+	if (!Net_IPv6::checkIPv6($hp)) {
+		return false;
+	}
+
+	if (!is_numeric($np) || ($np < 1) || ($np > $max)) {
+		return false;
+	}
+
+	return true;
+}
+
+
 /* returns true if $subnet is a valid subnet in CIDR format or an alias thereof */
 function is_subnetoralias($subnet) {
 
@@ -503,15 +524,15 @@ function alias_expand_value($name) {
 
 /* expand a host or network alias, if necessary */
 function alias_expand($name) {
-
 	global $aliastable;
 
-	if (isset($aliastable[$name]))
+	if (isset($aliastable[$name])) {
 		return "\${$name}";
-	else if (is_ipaddr($name) || is_subnet($name))
+	} else if (is_ipaddr($name) || is_subnet($name) || Net_IPv6::checkIPv6($name) || is_subnet_ipv6($name)) {
 		return "{$name}";
-	else
+	} else {
 		return null;
+	}
 }
 
 /* expand a host alias, if necessary */
@@ -521,14 +542,16 @@ function alias_expand_host($name) {
 	if (isset($aliastable[$name])) {
 		$ip_arr = explode(" ", $aliastable[$name]);
 		foreach($ip_arr as $ip) {
-			if (!is_ipaddr($ip))
+			if (!is_ipaddr($ip) || Net_IPv6::checkIPv6($ip)) {
 				return null;
+			}
 		}
 		return $aliastable[$name];
-	} else if (is_ipaddr($name))
+	} else if (is_ipaddr($name) || Net_IPv6::checkIPv6($name)) {
 		return $name;
-	else
+	} else {
 		return null;
+	}
 }
 
 /* expand a network alias, if necessary */
@@ -612,8 +635,8 @@ function arp_get_mac_by_ip($ip) {
 
 /* return a fieldname that is safe for xml usage */
 function xml_safe_fieldname($fieldname) {
-	$replace = array('/', '-', ' ', '!', '@', '#', '$', '%', '^', '&', '*', '(', ')',
-			 '_', '+', '=', '{', '}', '[', ']', '|', '/', '<', '>', '?',
+	$replace = array('/', ' ', '!', '@', '#', '$', '%', '^', '&', '*', '(', ')',
+			 '+', '=', '{', '}', '[', ']', '|', '/', '<', '>', '?',
 			 ':', ',', '.', '\'', '\\'
 		);
 	return strtolower(str_replace($replace, "", $fieldname));
@@ -647,8 +670,9 @@ function mac_format($clientmac) {
 
 function resolve_retry($hostname, $retries = 5) {
 
-       if (is_ipaddr($hostname))
+       if (is_ipaddr($hostname) || Net_IPv6::checkIPv6($hostname)) {
                return $hostname;
+	}
 
        for ($i = 0; $i < $retries; $i++) {
                $ip = gethostbyname($hostname);
-- 
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