[Dev] Documenting Feathercoin Specific Software settings - Part 3

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Support fork history commit

https://github.com/FeatherCoin/Feathercoin/commit/2ca14b4c772b5cd7e8b0e8f2b81e3ae9a3a6c87b

src/qt/openuridialog.cpp

 +    ui->uriEdit->setPlaceholderText("feathercoin:");

 +    ui->uriEdit->setText("feathercoin:?r=" + QUrl::toPercentEncoding(fileUri.toString()));

Code replaced name change

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix compile error commit

https://github.com/FeatherCoin/Feathercoin/commit/ce54ff5609afb5b7cace591a6a0c7ba500f15ac1

src/base58.cpp

 + // Copyright (c) 2014 The Bitcoin developers
 + // Distributed under the MIT/X11 software license, see the accompanying
 + // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 + 
 + #include "base58.h"
 + 
 + #include "hash.h"
 + #include "uint256.h"
 + 
 + #include <assert.h>
 + #include <stdint.h>
 + #include <string.h>
 + #include <vector>
 + #include <string>
 + #include <boost/variant/apply_visitor.hpp>
 + #include <boost/variant/static_visitor.hpp>
 + 
 + /* All alphanumeric characters except for "0", "I", "O", and "l" */
 + static const char* pszBase58 =

New files start. 273 lines

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix compile error commit

https://github.com/FeatherCoin/Feathercoin/commit/ce54ff5609afb5b7cace591a6a0c7ba500f15ac1

src/base58.h

New file

  // Why base-58 instead of standard base-64 encoding?
  // - Don't want 0OIl characters that look the same in some fonts and
  //      could be used to create visually identical looking account numbers.
  // - A string with non-alphanumeric characters is not as easily accepted as an account number.
  // - E-mail usually won't line-break if there's no punctuation to break at.
  // - Double-clicking selects the whole number as one word if it's all alphanumeric.
  //
  #ifndef BITCOIN_BASE58_H
  #define BITCOIN_BASE58_H

  #include "chainparams.h"
  #include "key.h"
  #include "script.h"

  #include <string>
  #include <vector>

  /**
   * Encode a byte sequence as a base58-encoded string.
   * pbegin and pend cannot be NULL, unless both are.
  */
 std::string EncodeBase58(const unsigned char* pbegin, const unsigned char* pend);

New file .150 starts.here, where from?

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix compile error commit

https://github.com/FeatherCoin/Feathercoin/commit/ce54ff5609afb5b7cace591a6a0c7ba500f15ac1

src/mruset.h

 +    void clear() { set.clear(); queue.clear(); }

Add code

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix compile error commit

https://github.com/FeatherCoin/Feathercoin/commit/ce54ff5609afb5b7cace591a6a0c7ba500f15ac1

src/netbase.h

  -#ifdef USE_IPV6

2 if defs for iPv6 Code removed

  +/** Return readable error string for a network error code */
  +std::string NetworkErrorString(int err);

Code added

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix compile error commit

https://github.com/FeatherCoin/Feathercoin/commit/ce54ff5609afb5b7cace591a6a0c7ba500f15ac1

src/rpcmisc.cpp

 -    obj.push_back(Pair("timeoffset",    (boost::int64_t)GetTimeOffset()));
 +    obj.push_back(Pair("timeoffset",    GetTimeOffset()));

 -    obj.push_back(Pair("timeoffset",    (boost::int64_t)GetTimeOffset()));
 +    obj.push_back(Pair("timeoffset",    GetTimeOffset()));

 -      obj.push_back(Pair("unlocked_until", (boost::int64_t)nWalletUnlockTime));
 +      obj.push_back(Pair("unlocked_until", nWalletUnlockTime));

 -     CScript _createmultisig(const Array& params)
 +    CScript _createmultisig_redeemScript(const Array& params)

Code replaced

 + 
 +     if (result.size() > MAX_SCRIPT_ELEMENT_SIZE)
 +         throw runtime_error(
 +                 strprintf("redeemScript exceeds size limit: %d > %d", result.size(), MAX_SCRIPT_ELEMENT_SIZE));
 +

Additional code

 -    CScript inner = _createmultisig(params);
 +    CScript inner = _createmultisig_redeemScript(params);

Code replaced

 +            "verifymessage \"feathercoinaddress\" \"signature\" \"message\"\n"

 +            "1. \"feathercoinaddress\"  (string, required) The feathercoin address to use for the signature.\n"

Code replaced name change

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix compile error commit

https://github.com/FeatherCoin/Feathercoin/commit/ce54ff5609afb5b7cace591a6a0c7ba500f15ac1

src/rpcprotocol.cpp

 -    char buffer[64];
 -    time(&now);
 -    time_t now;
 -    struct tm* now_gmt = gmtime(&now);
 -    string locale(setlocale(LC_TIME, NULL));
 -    setlocale(LC_TIME, "C"); // we want POSIX (aka "C") weekday/month strings
 -    strftime(buffer, sizeof(buffer), "%a, %d %b %Y %H:%M:%S +0000", now_gmt);
 -    setlocale(LC_TIME, locale.c_str());
 -    return string(buffer);

Code replaced

  +    return DateTimeStrFormat("%a, %d %b %Y %H:%M:%S +0000", GetTime());

Code added to replace code

 -            "Content-Length: %"PRIszu"\r\n"
 +            "Content-Length: %u\r\n"

Code replaced

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix compile error commit

https://github.com/FeatherCoin/Feathercoin/commit/ce54ff5609afb5b7cace591a6a0c7ba500f15ac1

src/serialize.h

 -#define FLATDATA(obj)  REF(CFlatData((char*)&(obj), (char*)&(obj+  sizeof(obj)))
 + #define FLATDATA(obj) REF(CFlatData((char*)&(obj), (char*)&(obj)+  sizeof(obj)))
 -#define VARINT(obj)    REF(WrapVarInt(REF(obj)))
 + #define VARINT(obj) REF(WrapVarInt(REF(obj)))
 + #define LIMITED_STRING(obj,n) REF(LimitedString< n >(REF(obj)))

Replace code

 + template<size_t Limit>
 + class LimitedString
 + {
 + protected:
 +     std::string& string;
 + public:
 +     LimitedString(std::string& string) : string(string) {}
 + 
 +     template<typename Stream>
 +     void Unserialize(Stream& s, int, int=0)
 +     {
 +         size_t size = ReadCompactSize(s);
 +         if (size > Limit) {
 +             throw std::ios_base::failure("String length limit exceeded");
 +         }
 +         string.resize(size);
 +         if (size != 0)
 +             s.read((char*)&string[0], size);
 +     }
 + 
 +     template<typename Stream>
 +     void Serialize(Stream& s, int, int=0) const
 +     {
 +         WriteCompactSize(s, string.size());
 +         if (!string.empty())
 +             s.write((char*)&string[0], string.size());
 +     }
 + 
 +     unsigned int GetSerializeSize(int, int=0) const
 +     {
 +         return GetSizeOfCompactSize(string.size())      +  string.size();
 +     }
 + };
 +

Added code

 -     {
           setstate(std::ios::failbit, "CDataStream::ignore() : end of data");

 -         nSize = vch.size()      - nReadPos;
 -      }

Code removed

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix compile error 2 - commit

https://github.com/FeatherCoin/Feathercoin/commit/eca6f424ab7d927436a38af434ad357946c8219c

src/rpcblockchain.cpp

 +#include "checkpoints.h"

Additional code

 -    result.push_back(Pair("time", (boost::int64_t)block.GetBlockTime()));
 +     result.push_back(Pair("time", block.GetBlockTime()));
 -    result.push_back(Pair("nonce", (boost::uint64_t)block.nNonce));
 +     result.push_back(Pair("nonce", (uint64_t)block.nNonce));

 -            info.push_back(Pair("time", (boost::int64_t)e.GetTime()));
 +            info.push_back(Pair("time", e.GetTime()));

 -    ReadBlockFromDisk(block, pblockindex);
 + 
 +     if(!ReadBlockFromDisk(block, pblockindex))
 +         throw JSONRPCError(RPC_INTERNAL_ERROR, "Can't read block from disk");

 -        ret.push_back(Pair("height", (boost::int64_t)stats.nHeight));
 +         ret.push_back(Pair("height", (int64_t)stats.nHeight));

 -        ret.push_back(Pair("transactions", (boost::int64_t)stats.nTransactions));
 +         ret.push_back(Pair("transactions", (int64_t)stats.nTransactions));
 -        ret.push_back(Pair("txouts", (boost::int64_t)stats.nTransactionOutputs));
 +         ret.push_back(Pair("txouts", (int64_t)stats.nTransactionOutputs));
 -        ret.push_back(Pair("bytes_serialized", (boost::int64_t)stats.nSerializedSize));
 +         ret.push_back(Pair("bytes_serialized", (int64_t)stats.nSerializedSize));

Replace code

 + Value getblockchaininfo(const Array& params, bool fHelp)
 + {
 +     if (fHelp || params.size() != 0)
 +         throw runtime_error(
 +             "getblockchaininfo\n"
 +             "Returns an object containing various state info regarding block chain processing.\n"
 +             "\nResult:\n"
 +             "{\n"
 +             "  \"chain\": \"xxxx\",        (string) current chain (main, testnet3, regtest)\n"
 +             "  \"blocks\": xxxxxx,         (numeric) the current number of blocks processed in the server\n"
 +             "  \"bestblockhash\": \"...\", (string) the hash of the currently best block\n"
 +             "  \"difficulty\": xxxxxx,     (numeric) the current difficulty\n"
 +             "  \"verificationprogress\": xxxx, (numeric) estimate of verification progress [0..1]\n"
 +             "  \"chainwork\": \"xxxx\"     (string) total amount of work in active chain, in hexadecimal\n"
 +             "}\n"
 +             "\nExamples:\n"
 +                  +  HelpExampleCli("getblockchaininfo", "")
 +                  +  HelpExampleRpc("getblockchaininfo", "")
 +         );
 + 
 +     proxyType proxy;
 +     GetProxy(NET_IPV4, proxy);
 + 
 +     Object obj;
 +     std::string chain = Params().DataDir();
 +     if(chain.empty())
 +         chain = "main";
 +     obj.push_back(Pair("chain",         chain));
 +     obj.push_back(Pair("blocks",        (int)chainActive.Height()));
 +     obj.push_back(Pair("bestblockhash", chainActive.Tip()->GetBlockHash().GetHex()));
 +     obj.push_back(Pair("difficulty",    (double)GetDifficulty()));
 +     obj.push_back(Pair("verificationprogress", Checkpoints::GuessVerificationProgress(chainActive.Tip())));
 +     obj.push_back(Pair("chainwork",     chainActive.Tip()->nChainWork.GetHex()));
 +     return obj;
 + }

Additional code for getblockchaininfo

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix compile error 2 - commit

https://github.com/FeatherCoin/Feathercoin/commit/eca6f424ab7d927436a38af434ad357946c8219c

src/rpcwallet.cpp

 -        entry.push_back(Pair("blocktime", (boost::int64_t)(mapBlockIndex[wtx.hashBlock]->nTime)));
 +        entry.push_back(Pair("blocktime", (int64_t)(mapBlockIndex[wtx.hashBlock]->nTime)));

Code replaced

 -    entry.push_back(Pair("time", (boost::int64_t)wtx.GetTxTime()));
 +     entry.push_back(Pair("time", wtx.GetTxTime()));
 -    entry.push_back(Pair("timereceived", (boost::int64_t)wtx.nTimeReceived));
 +     entry.push_back(Pair("timereceived", (int64_t)wtx.nTimeReceived));

 -            "\"transactionid\"  (string) The transaction id. (view at https://blockchain.info/tx/[transactionid])\n"
 +             "\"transactionid\"  (string) The transaction id.\n"

 -            "\"transactionid\"        (string) The transaction id. (view at https://blockchain.info/tx/[transactionid])\n"
 +             "\"transactionid\"        (string) The transaction id.\n"

 -            "                                    the number of addresses. See https://blockchain.info/tx/[transactionid]\n"
 +             "                                    the number of addresses.\n"

 -extern CScript _createmultisig(const Array& params);
 + extern CScript _createmultisig_redeemScript(const Array& params);

 -    CScript inner = _createmultisig(params);
 +     CScript inner = _createmultisig_redeemScript(params);

 -        entry.push_back(Pair("time", (boost::int64_t)acentry.nTime));
 +         entry.push_back(Pair("time", acentry.nTime));

 -            "    \"txid\": \"transactionid\", (string) The transaction id (see https://blockchain.info/tx/[transactionid]. Available \n"
 +             "    \"txid\": \"transactionid\", (string) The transaction id. Available for 'send' and 'receive' category of transactions.\n"
 -            "                                          for 'send' and 'receive' category of transactions.\n"

 -            "    \"txid\": \"transactionid\",  (string) The transaction id (see https://blockchain.info/tx/[transactionid]. Available for 'send' and 'receive' category of transactions.\n"
 +             "  \"txid\" : \"transactionid\",   (string) The transaction id.\n"

 -            "Temporarily lock (lock=true) or unlock (lock=false) specified transaction outputs.\n"
 +             "Temporarily lock (unlock=false) or unlock (unlock=true) specified transaction outputs.\n"

 -    obj.push_back(Pair("keypoololdest", (boost::int64_t)pwalletMain     ->GetOldestKeyPoolTime()));
 +     obj.push_back(Pair("keypoololdest", pwalletMain     ->GetOldestKeyPoolTime()));


 -        obj.push_back(Pair("unlocked_until", (boost::int64_t)nWalletUnlockTime));
 +         obj.push_back(Pair("unlocked_until", nWalletUnlockTime));

Code replaced

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix lost file - commit

https://github.com/FeatherCoin/Feathercoin/commit/1d396a14752fbe8120f4bebe0ebfaaa69fba3531

src/qt/locale/bitcoin_mn.ts

Translation file complete

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix lost files 2- commit

https://github.com/FeatherCoin/Feathercoin/commit/388d6bdb1cfd96b8634b5c7f5f8b392990abe7d2

src/qt/guiutil.h

 + 
 +     // Replace invalid default fonts with known good ones
 +     void SubstituteFonts();
 +

Additional code

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix lost files 2- commit

https://github.com/FeatherCoin/Feathercoin/commit/388d6bdb1cfd96b8634b5c7f5f8b392990abe7d2

src/qt/optionsmodel.h

 +        ThirdPartyTxUrls,       // QString

 +    QString getThirdPartyTxUrls() { return strThirdPartyTxUrls; }

+    QString strThirdPartyTxUrls;

Additional code

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix lost files 2- commit

https://github.com/FeatherCoin/Feathercoin/commit/388d6bdb1cfd96b8634b5c7f5f8b392990abe7d2

src/qt/rpcconsole.h

 -    void setNumBlocks(int count, int countOfPeers);
 +    void setNumBlocks(int count);

Code replaced

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix lost files 2- commit

https://github.com/FeatherCoin/Feathercoin/commit/388d6bdb1cfd96b8634b5c7f5f8b392990abe7d2

src/qt/transactiontablemodel.cpp

 -#include <QTimer>

Code removed

 -            LOCK(wallet->cs_wallet);
 +            LOCK2(cs_main, wallet->cs_wallet);

Lock code replaced twice

 +             // Get required locks upfront. This avoids the GUI from getting
 +             // stuck if the core is holding the locks for a longer time - for
 +             // example, during a wallet rescan.
 +             //

Additional comments

-            if(rec->statusUpdateNeeded())
+             TRY_LOCK(cs_main, lockMain);
+             if(lockMain)
         {
 +                 TRY_LOCK(wallet->cs_wallet, lockWallet);
 +                 if(lockWallet && rec->statusUpdateNeeded())

         {
 -                     LOCK(wallet->cs_wallet);

Code replaced

 -            LOCK(wallet->cs_wallet);
 +            LOCK2(cs_main, wallet->cs_wallet);

Lock code replaced

 -        priv(new TransactionTablePriv(wallet, this)),
 +        priv(new TransactionTablePriv(wallet, this))
 -        cachedNumBlocks(0)

Code replaced

 -    QTimer *timer = new QTimer(this);
 -    connect(timer, SIGNAL(timeout()), this, SLOT(updateConfirmations()));
 -    timer->start(MODEL_UPDATE_DELAY);
 -

Code removed

 -    {
 -        cachedNumBlocks = chainActive.Height();
 -        // Blocks came in since last poll.
 -        // Invalidate status (number of confirmations) and (possibly) description
 -        //  for all rows. Qt is smart enough to only actually request the data for the
 -        //  visible rows.
 -        emit dataChanged(index(0, Status), index(priv     ->size()     -1, Status));
 -        emit dataChanged(index(0, ToAddress), index(priv     ->size()     -1, ToAddress));
 -    }

Code removed

 +     // Blocks came in since last poll.
 +     // Invalidate status (number of confirmations) and (possibly) description
 +     //  for all rows. Qt is smart enough to only actually request the data for the
 +     //  visible rows.
 +     emit dataChanged(index(0, Status), index(priv     ->size()     -1, Status));
 +     emit dataChanged(index(0, ToAddress), index(priv     ->size()     -1, ToAddress));

Code replaces removed code

 +    case TxHashRole:
 +        return QString::fromStdString(rec->hash.ToString());

Additional code

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix lost files 2- commit

https://github.com/FeatherCoin/Feathercoin/commit/388d6bdb1cfd96b8634b5c7f5f8b392990abe7d2

src/qt/transactiontablemodel.h

Wallet transaction screen.

 +        /** Transaction hash */
 +        TxHashRole,

Code added

-    int cachedNumBlocks;

Code removed

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix lost files 2- commit

https://github.com/FeatherCoin/Feathercoin/commit/388d6bdb1cfd96b8634b5c7f5f8b392990abe7d2

src/qt/winshutdownmonitor.cpp

A new file? where from?

 + // Copyright (c) 2014 The Bitcoin developers
 + // Distributed under the MIT/X11 software license, see the accompanying
 + // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 + 
 + #include "winshutdownmonitor.h"
 + 
 + #if defined(Q_OS_WIN) && QT_VERSION >= 0x050000
 + #include "init.h"
 + 
 + #include <windows.h>
 + 
 + #include <QDebug>
 + 
 + // If we don't want a message to be processed by Qt, return true and set result to
 + // the value that the window procedure should return. Otherwise return false.
 + bool WinShutdownMonitor::nativeEventFilter(const QByteArray &eventType, void *pMessage, long *pnResult)
 + {

Start of code, 57 lines of code

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix lost files 2- commit

https://github.com/FeatherCoin/Feathercoin/commit/388d6bdb1cfd96b8634b5c7f5f8b392990abe7d2

src/qt/winshutdownmonitor.h

A new file? where from?

 + // Copyright (c) 2014 The Bitcoin developers
 + // Distributed under the MIT/X11 software license, see the accompanying
 + // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 + 
 + #ifndef WINSHUTDOWNMONITOR_H
 + #define WINSHUTDOWNMONITOR_H
 + 
 + #ifdef WIN32
 + #include <QByteArray>
 + #include <QString>
 + 
 + #if QT_VERSION >= 0x050000
 + #include <windef.h> // for HWND
 + 
 + #include <QAbstractNativeEventFilter>
 + 
 + class WinShutdownMonitor : public QAbstractNativeEventFilter
 + {
 + public:
 +     /** Implements QAbstractNativeEventFilter interface for processing Windows messages */
 +     bool nativeEventFilter(const QByteArray &eventType, void *pMessage, long *pnResult);
 + 
 +     /** Register the reason for blocking shutdown on Windows to allow clean client exit */
 +     static void registerShutdownBlockReason(const QString& strReason, const HWND& mainWinId);
 + };
 + #endif
 + #endif
 + 
 + #endif // WINSHUTDOWNMONITOR_H

Code to replacement / new file

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

Fix lost files / compile error 3- commit

https://github.com/FeatherCoin/Feathercoin/commit/e81b798f50f1536dbf9cd0f0c3649fbea074e22b

src/netbase.cpp

 -    if(chainActive.Height() != cachedNumBlocks)
 -#ifdef USE_IPV6
     aiHint.ai_family = AF_UNSPEC;
 -#else
 -    aiHint.ai_family = AF_INET;
 -#endif

Remove ifdef from just IPv6

#ifdef USE_IPV6
if (aiTrav->ai_family == AF_INET6)

Remove ifdef from just IPv6

 -            if (ret)
 +            if (ret) {
 +                closesocket(hSocket);

Replaced if ret true code

 - #ifdef USE_IPV6
         struct sockaddr_storage sockaddr;

Remove ifdef from just IPv6

  +                LogPrintf("select() for %s failed: %s\n", addrConnect.ToString(), NetworkErrorString(WSAGetLastError()));

 +                LogPrintf("connect() to %s failed after select(): %s\n", addrConnect.ToString(), NetworkErrorString(nRet));

 +            LogPrintf("connect() to %s failed: %s\n", addrConnect.ToString(), NetworkErrorString(WSAGetLastError()));

Log print interface replace

  +       closesocket(hSocket);

Additional code

 +        case 4:
 +            closesocket(hSocket);
 +            return false;

Case 4 socket code updated

 -#ifdef USE_IPV6
     CNetAddr::CNetAddr(const struct in6_addr& ipv6Addr)

 -#ifdef USE_IPV6
     struct sockaddr_storage sockaddr;

 -#ifdef USE_IPV6
    bool CNetAddr::GetIn6Addr(struct in6_addr* pipv6Addr) const

  -#ifdef USE_IPV6
    CService::CService(const struct in6_addr& ipv6Addr, unsigned short portIn) : CNetAddr(ipv6Addr), port(portIn)

  -#ifdef USE_IPV6
     CService::CService(const struct sockaddr_in6 &addr) : 

 -#ifdef USE_IPV6
    case AF_INET6:
            *this = CService(*(const struct sockaddr_in6*)paddr);

   -#ifdef USE_IPV6
        if (IsIPv6()) {
           if (*addrlen < (socklen_t)sizeof(struct sockaddr_in6))

Remove ifdef from just IPv6

 + 
 + #ifdef WIN32
 + std::string NetworkErrorString(int err)
 + {
 +     char buf[256];
 +     buf[0] = 0;
 +     if(FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_MAX_WIDTH_MASK,
 +             NULL, err, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
 +             buf, sizeof(buf), NULL))
 +     {
 +         return strprintf("%s (%d)", buf, err);
 +     }
 +     else
 +     {
 +         return strprintf("Unknown error (%d)", err);
 +     }
 + }
 + #else
 + std::string NetworkErrorString(int err)
 + {
 +     char buf[256];
 +     const char *s = buf;
 +     buf[0] = 0;
 +     /* Too bad there are two incompatible implementations of the
 +      * thread-safe strerror. */
 + #ifdef STRERROR_R_CHAR_P /* GNU variant can return a pointer outside the passed buffer */
 +     s = strerror_r(err, buf, sizeof(buf));
 + #else /* POSIX variant always returns message in buffer */
 +     (void) strerror_r(err, buf, sizeof(buf));
 + #endif
 +     return strprintf("%s (%d)", s, err);
 + }
 + #endif
 +

Additional code error handling

wrapper

Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*

update GUICONSTANTS

https://github.com/FeatherCoin/Feathercoin/commit/c2bb55f2fef05129089bf48d12b190f44f2e4ca3

src/qt/guiconstants.h

 + #define QAPP_ORG_NAME "Feathercoin"
 + #define QAPP_ORG_DOMAIN "feathercoin.com"
 + #define QAPP_APP_NAME_DEFAULT "Feathercoin-Qt"
 + #define QAPP_APP_NAME_TESTNET "Feathercoin-Qt-testnet"

Code replaced Feathercoin name change