From d9574c2f14028297ad5121695a0c10e517bf638e Mon Sep 17 00:00:00 2001
From: Gavin Andresen <gavinandresen@gmail.com>
Date: Thu, 20 Jan 2011 13:10:01 -0500
Subject: [PATCH] Reconcile getbalance and listaccounts 0 in the shared-wallet
 case If you copied your wallet and used it on two different machines, the
 balance reported by getbalance and the sum(listaccounts) could disagree,
 because you might receive payments for an address that is in your wallet but
 not your address book.  Now all such transactions are credited to the default
 empty-string account.

---
 init.cpp |  3 +++
 main.cpp | 20 ++++++++++++++++++--
 rpc.cpp  |  8 ++++++++
 3 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/init.cpp b/init.cpp
index e114d807..d93eaba7 100644
--- a/init.cpp
+++ b/init.cpp
@@ -346,6 +346,9 @@ bool AppInit2(int argc, char* argv[])
         return false;
     }
 
+    if (GetBoolArg("-rescan"))
+        ScanForWalletTransactions(pindexGenesisBlock);
+
     // Add wallet transactions that aren't already in a block to mapTransactions
     ReacceptWalletTransactions();
 
diff --git a/main.cpp b/main.cpp
index ac0c563e..3079d384 100644
--- a/main.cpp
+++ b/main.cpp
@@ -442,8 +442,13 @@ void CWalletTx::GetAmounts(int64& nGenerated, list<pair<string, int64> >& listRe
         else if (ExtractPubKey(txout.scriptPubKey, false, vchPubKey))
             address = PubKeyToAddress(vchPubKey);
         else
-            address = " unknown "; // some type of weird non-standard transaction?
+        {
+            printf("CWalletTx::GetAmounts: Unknown transaction type found, txid %s\n",
+                   this->GetHash().ToString().c_str());
+            address = " unknown ";
+        }
 
+        // Don't report 'change' txouts
         if (nDebit > 0 && txout.IsChange())
             continue;
 
@@ -479,8 +484,19 @@ void CWalletTx::GetAccountAmounts(const string& strAccount, int64& nGenerated, i
     CRITICAL_BLOCK(cs_mapAddressBook)
     {
         foreach(const PAIRTYPE(string,int64)& r, listReceived)
-            if (mapAddressBook.count(r.first) && mapAddressBook[r.first] == strAccount)
+        {
+            if (mapAddressBook.count(r.first))
+            {
+                if (mapAddressBook[r.first] == strAccount)
+                {
+                    nReceived += r.second;
+                }
+            }
+            else if (strAccount.empty())
+            {
                 nReceived += r.second;
+            }
+        }
     }
 }
 
diff --git a/rpc.cpp b/rpc.cpp
index 286ddcd0..055e0cf1 100644
--- a/rpc.cpp
+++ b/rpc.cpp
@@ -626,6 +626,7 @@ Value getbalance(const Array& params, bool fHelp)
         // (GetBalance() sums up all unspent TxOuts)
         // getbalance and getbalance '*' should always return the same number.
         int64 nBalance = 0;
+        vector<string> vAccounts;
         for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
         {
             const CWalletTx& wtx = (*it).second;
@@ -636,12 +637,17 @@ Value getbalance(const Array& params, bool fHelp)
             list<pair<string, int64> > listSent;
             wtx.GetAmounts(allGenerated, listReceived, listSent, allFee, strSentAccount);
             foreach(const PAIRTYPE(string,int64)& r, listReceived)
+            {
                 nBalance += r.second;
+                if (!count(vAccounts.begin(), vAccounts.end(), r.first))
+                    vAccounts.push_back(r.first);
+            }
             foreach(const PAIRTYPE(string,int64)& r, listSent)
                 nBalance -= r.second;
             nBalance -= allFee;
             nBalance += allGenerated;
         }
+        printf("Found %d accounts\n", vAccounts.size());
         return (double)nBalance / (double)COIN;
     }
 
@@ -1080,6 +1086,8 @@ Value listaccounts(const Array& params, bool fHelp)
                 foreach(const PAIRTYPE(string, int64)& r, listReceived)
                     if (mapAddressBook.count(r.first))
                         mapAccountBalances[mapAddressBook[r.first]] += r.second;
+                    else
+                        mapAccountBalances[""] += r.second;
             }
         }
     }