Refactor parameter interaction, call it before AppInit2()

3 files changed, 67 insertions, 60 deletions

diff --git a/src/bitcoind.cpp b/src/bitcoind.cpp
index addf0e6a26..f1875731d5 100644
--- a/src/bitcoind.cpp
+++ b/src/bitcoind.cpp
@@ -151,6 +151,7 @@ bool AppInit(int argc, char* argv[])
 #endif
         SoftSetBoolArg("-server", true);
 
+        InitParameterInteraction();
         fRet = AppInit2(threadGroup, scheduler);
     }
     catch (const std::exception& e) {
diff --git a/src/init.cpp b/src/init.cpp
index 3028802b93..1e817c18ed 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -681,6 +681,70 @@ bool AppInitServers(boost::thread_group& threadGroup)
     return true;
 }
 
+// Parameter interaction based on rules
+void InitParameterInteraction()
+{
+    // when specifying an explicit binding address, you want to listen on it
+    // even when -connect or -proxy is specified
+    if (mapArgs.count("-bind")) {
+        if (SoftSetBoolArg("-listen", true))
+            LogPrintf("%s: parameter interaction: -bind set -> setting -listen=1\n", __func__);
+    }
+    if (mapArgs.count("-whitebind")) {
+        if (SoftSetBoolArg("-listen", true))
+            LogPrintf("%s: parameter interaction: -whitebind set -> setting -listen=1\n", __func__);
+    }
+
+    if (mapArgs.count("-connect") && mapMultiArgs["-connect"].size() > 0) {
+        // when only connecting to trusted nodes, do not seed via DNS, or listen by default
+        if (SoftSetBoolArg("-dnsseed", false))
+            LogPrintf("%s: parameter interaction: -connect set -> setting -dnsseed=0\n", __func__);
+        if (SoftSetBoolArg("-listen", false))
+            LogPrintf("%s: parameter interaction: -connect set -> setting -listen=0\n", __func__);
+    }
+
+    if (mapArgs.count("-proxy")) {
+        // to protect privacy, do not listen by default if a default proxy server is specified
+        if (SoftSetBoolArg("-listen", false))
+            LogPrintf("%s: parameter interaction: -proxy set -> setting -listen=0\n", __func__);
+        // to protect privacy, do not use UPNP when a proxy is set. The user may still specify -listen=1
+        // to listen locally, so don't rely on this happening through -listen below.
+        if (SoftSetBoolArg("-upnp", false))
+            LogPrintf("%s: parameter interaction: -proxy set -> setting -upnp=0\n", __func__);
+        // to protect privacy, do not discover addresses by default
+        if (SoftSetBoolArg("-discover", false))
+            LogPrintf("%s: parameter interaction: -proxy set -> setting -discover=0\n", __func__);
+    }
+
+    if (!GetBoolArg("-listen", DEFAULT_LISTEN)) {
+        // do not map ports or try to retrieve public IP when not listening (pointless)
+        if (SoftSetBoolArg("-upnp", false))
+            LogPrintf("%s: parameter interaction: -listen=0 -> setting -upnp=0\n", __func__);
+        if (SoftSetBoolArg("-discover", false))
+            LogPrintf("%s: parameter interaction: -listen=0 -> setting -discover=0\n", __func__);
+        if (SoftSetBoolArg("-listenonion", false))
+            LogPrintf("%s: parameter interaction: -listen=0 -> setting -listenonion=0\n", __func__);
+    }
+
+    if (mapArgs.count("-externalip")) {
+        // if an explicit public IP is specified, do not try to find others
+        if (SoftSetBoolArg("-discover", false))
+            LogPrintf("%s: parameter interaction: -externalip set -> setting -discover=0\n", __func__);
+    }
+
+    if (GetBoolArg("-salvagewallet", false)) {
+        // Rewrite just private keys: rescan to find transactions
+        if (SoftSetBoolArg("-rescan", true))
+            LogPrintf("%s: parameter interaction: -salvagewallet=1 -> setting -rescan=1\n", __func__);
+    }
+
+    // -zapwallettx implies a rescan
+    if (GetBoolArg("-zapwallettxes", false)) {
+        if (SoftSetBoolArg("-rescan", true))
+            LogPrintf("%s: parameter interaction: -zapwallettxes=<mode> -> setting -rescan=1\n", __func__);
+    }
+}
+
 /** Initialize bitcoin.
  *  @pre Parameters should be parsed and config file should be read.
  */
@@ -754,66 +818,6 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
     LogPrintf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
     LogPrintf("Bitcoin version %s (%s)\n", FormatFullVersion(), CLIENT_DATE);
 
-    // when specifying an explicit binding address, you want to listen on it
-    // even when -connect or -proxy is specified
-    if (mapArgs.count("-bind")) {
-        if (SoftSetBoolArg("-listen", true))
-            LogPrintf("%s: parameter interaction: -bind set -> setting -listen=1\n", __func__);
-    }
-    if (mapArgs.count("-whitebind")) {
-        if (SoftSetBoolArg("-listen", true))
-            LogPrintf("%s: parameter interaction: -whitebind set -> setting -listen=1\n", __func__);
-    }
-
-    if (mapArgs.count("-connect") && mapMultiArgs["-connect"].size() > 0) {
-        // when only connecting to trusted nodes, do not seed via DNS, or listen by default
-        if (SoftSetBoolArg("-dnsseed", false))
-            LogPrintf("%s: parameter interaction: -connect set -> setting -dnsseed=0\n", __func__);
-        if (SoftSetBoolArg("-listen", false))
-            LogPrintf("%s: parameter interaction: -connect set -> setting -listen=0\n", __func__);
-    }
-
-    if (mapArgs.count("-proxy")) {
-        // to protect privacy, do not listen by default if a default proxy server is specified
-        if (SoftSetBoolArg("-listen", false))
-            LogPrintf("%s: parameter interaction: -proxy set -> setting -listen=0\n", __func__);
-        // to protect privacy, do not use UPNP when a proxy is set. The user may still specify -listen=1
-        // to listen locally, so don't rely on this happening through -listen below.
-        if (SoftSetBoolArg("-upnp", false))
-            LogPrintf("%s: parameter interaction: -proxy set -> setting -upnp=0\n", __func__);
-        // to protect privacy, do not discover addresses by default
-        if (SoftSetBoolArg("-discover", false))
-            LogPrintf("%s: parameter interaction: -proxy set -> setting -discover=0\n", __func__);
-    }
-
-    if (!GetBoolArg("-listen", DEFAULT_LISTEN)) {
-        // do not map ports or try to retrieve public IP when not listening (pointless)
-        if (SoftSetBoolArg("-upnp", false))
-            LogPrintf("%s: parameter interaction: -listen=0 -> setting -upnp=0\n", __func__);
-        if (SoftSetBoolArg("-discover", false))
-            LogPrintf("%s: parameter interaction: -listen=0 -> setting -discover=0\n", __func__);
-        if (SoftSetBoolArg("-listenonion", false))
-            LogPrintf("%s: parameter interaction: -listen=0 -> setting -listenonion=0\n", __func__);
-    }
-
-    if (mapArgs.count("-externalip")) {
-        // if an explicit public IP is specified, do not try to find others
-        if (SoftSetBoolArg("-discover", false))
-            LogPrintf("%s: parameter interaction: -externalip set -> setting -discover=0\n", __func__);
-    }
-
-    if (GetBoolArg("-salvagewallet", false)) {
-        // Rewrite just private keys: rescan to find transactions
-        if (SoftSetBoolArg("-rescan", true))
-            LogPrintf("%s: parameter interaction: -salvagewallet=1 -> setting -rescan=1\n", __func__);
-    }
-
-    // -zapwallettx implies a rescan
-    if (GetBoolArg("-zapwallettxes", false)) {
-        if (SoftSetBoolArg("-rescan", true))
-            LogPrintf("%s: parameter interaction: -zapwallettxes=<mode> -> setting -rescan=1\n", __func__);
-    }
-
     // if using block pruning, then disable txindex
     if (GetArg("-prune", 0)) {
         if (GetBoolArg("-txindex", false))
diff --git a/src/init.h b/src/init.h
index 8cd51b0286..dcd1765da9 100644
--- a/src/init.h
+++ b/src/init.h
@@ -23,6 +23,8 @@ bool ShutdownRequested();
 /** Interrupt threads */
 void Interrupt(boost::thread_group& threadGroup);
 void Shutdown();
+//!Parameter interaction: change current parameters depending on various rules
+void InitParameterInteraction();
 bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler);
 
 /** The help message mode determines what help message to show */