Add ipv6 dnsbl support

diff --git a/src/modules/m_dnsbl.cpp b/src/modules/m_dnsbl.cpp
index 7b38da4bfe56cd7651ad44d2ff02d387b198ebf3..5eaa8c279abce71526b1ff611930d2e89f503163 100644 (file)
--- a/src/modules/m_dnsbl.cpp
+++ b/src/modules/m_dnsbl.cpp
@@ -324,7 +324,7 @@ class ModuleDNSBL : public Module
 
        void OnSetUserIP(LocalUser* user) CXX11_OVERRIDE
        {
-               if ((user->exempt) || (user->client_sa.sa.sa_family != AF_INET) || !DNS)
+               if ((user->exempt) || !DNS)
                        return;
 
                if (user->MyClass)
@@ -335,13 +335,32 @@ class ModuleDNSBL : public Module
                else
                        ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "User has no connect class in OnSetUserIP");
 
-               unsigned int a, b, c, d;
-               d = (unsigned int) (user->client_sa.in4.sin_addr.s_addr >> 24) & 0xFF;
-               c = (unsigned int) (user->client_sa.in4.sin_addr.s_addr >> 16) & 0xFF;
-               b = (unsigned int) (user->client_sa.in4.sin_addr.s_addr >> 8) & 0xFF;
-               a = (unsigned int) user->client_sa.in4.sin_addr.s_addr & 0xFF;
+               std::string reversedip;
+               if (user->client_sa.sa.sa_family == AF_INET)
+               {
+                       unsigned int a, b, c, d;
+                       d = (unsigned int) (user->client_sa.in4.sin_addr.s_addr >> 24) & 0xFF;
+                       c = (unsigned int) (user->client_sa.in4.sin_addr.s_addr >> 16) & 0xFF;
+                       b = (unsigned int) (user->client_sa.in4.sin_addr.s_addr >> 8) & 0xFF;
+                       a = (unsigned int) user->client_sa.in4.sin_addr.s_addr & 0xFF;
+
+                       reversedip = ConvToStr(d) + "." + ConvToStr(c) + "." + ConvToStr(b) + "." + ConvToStr(a);
+               }
+               else if (user->client_sa.sa.sa_family == AF_INET6)
+               {
+                       const unsigned char* ip = user->client_sa.in6.sin6_addr.s6_addr;
+
+                       std::string buf = BinToHex(ip, 16);
+                       for (std::string::const_reverse_iterator it = buf.rbegin(); it != buf.rend(); ++it)
+                       {
+                               reversedip.push_back(*it);
+                               reversedip.push_back('.');
+                       }
+               }
+               else
+                       return;
 
-               const std::string reversedip = ConvToStr(d) + "." + ConvToStr(c) + "." + ConvToStr(b) + "." + ConvToStr(a);
+               ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Reversed IP %s -> %s", user->GetIPString().c_str(), reversedip.c_str());
 
                countExt.set(user, DNSBLConfEntries.size());