[PATCH v2 4/4] proxy.cgi: fix subnet comparison for proxy.pac generation

[Bernhard Held <berny156@gmx.de>]

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The logic of subnet comparison is broken. E.g. if the blue netmask is
255.255.255.0, it's impossible to add a VPN subnet with the same netmask.
The fix simplifies the logic by using Network::network_equal.
---
 html/cgi-bin/proxy.cgi | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/html/cgi-bin/proxy.cgi b/html/cgi-bin/proxy.cgi
index ea3b41126..df436595b 100644
--- a/html/cgi-bin/proxy.cgi
+++ b/html/cgi-bin/proxy.cgi
@@ -3065,9 +3065,10 @@ END
 			{
 				@temp = split(/\//);
 				chomp $temp[1];
-				if (
-					($temp[0] ne $netsettings{'GREEN_NETADDRESS'}) && ($temp[1] ne $netsettings{'GREEN_NETMASK'}) &&
-					($temp[0] ne $netsettings{'BLUE_NETADDRESS'}) && ($temp[1] ne $netsettings{'BLUE_NETMASK'})
+				unless (
+					# GREEN or BLUE networks are already added to "DIRECT". Check if given network is different from these.
+					&Network::network_equal("$temp[0]/$temp[1]", "$netsettings{'GREEN_NETADDRESS'}/$netsettings{'GREEN_NETMASK'}") ||
+					&Network::network_equal("$temp[0]/$temp[1]", "$netsettings{'BLUE_NETADDRESS'}/$netsettings{'BLUE_NETMASK'}")
 					)
 				{
 					print FILE " ||\n     (isInNet(myIpAddress(), \"$temp[0]\", \"$temp[1]\"))";
-- 
2.16.1