Add -blocknet to prevent connections to a given network

1 files changed, 12 insertions, 0 deletions

diff --git a/src/init.cpp b/src/init.cpp
index 03b47b3efa..202d513677 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -189,6 +189,7 @@ bool AppInit2(int argc, char* argv[])
             "  -connect=<ip>    \t\t  " + _("Connect only to the specified node") + "\n" +
             "  -seednode=<ip>   \t\t  " + _("Connect to a node to retrieve peer addresses, and disconnect") + "\n" +
             "  -externalip=<ip> \t  "   + _("Specify your own public address") + "\n" +
+            "  -blocknet=<net>  \t  "   + _("Do not connect to addresses in network net (ipv4, ipv6)") + "\n" +
             "  -discover        \t  "   + _("Try to discover public IP address (default: 1)") + "\n" +
             "  -irc             \t  "   + _("Find peers using internet relay chat (default: 0)") + "\n" +
             "  -listen          \t  "   + _("Accept connections from outside (default: 1)") + "\n" +
@@ -560,6 +561,17 @@ bool AppInit2(int argc, char* argv[])
         SoftSetBoolArg("-discover", false);
     }
 
+    if (mapArgs.count("-blocknet")) {
+        BOOST_FOREACH(std::string snet, mapMultiArgs["-blocknet"]) {
+            enum Network net = ParseNetwork(snet);
+            if (net == NET_UNROUTABLE) {
+                ThreadSafeMessageBox(_("Unknown network specified in -blocknet"), _("Bitcoin"), wxOK | wxMODAL);
+                return false;
+            }
+            SetLimited(net);
+        }
+    }
+
     fNameLookup = GetBoolArg("-dns");
     fProxyNameLookup = GetBoolArg("-proxydns");
     if (fProxyNameLookup)