raw
genesis                 1 // Copyright (c) 2009-2010 Satoshi Nakamoto
genesis                 2 // Copyright (c) 2009-2012 The Bitcoin developers
genesis                 3 // Distributed under the MIT/X11 software license, see the accompanying
genesis                 4 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
programmable-vers...    5 #include "knobs.h"
genesis                 6 #include "headers.h"
genesis                 7 #include "strlcpy.h"
genesis                 8 #include <boost/program_options/detail/config_file.hpp>
genesis                 9 #include <boost/program_options/parsers.hpp>
genesis                10 #include <boost/filesystem.hpp>
genesis                11 #include <boost/filesystem/fstream.hpp>
genesis                12 #include <boost/interprocess/sync/interprocess_mutex.hpp>
genesis                13 #include <boost/interprocess/sync/interprocess_recursive_mutex.hpp>
genesis                14 #include <boost/foreach.hpp>
genesis                15 
genesis                16 using namespace std;
genesis                17 using namespace boost;
genesis                18 
genesis                19 map<string, string> mapArgs;
genesis                20 map<string, vector<string> > mapMultiArgs;
genesis                21 bool fDebug = false;
genesis                22 bool fPrintToConsole = false;
genesis                23 bool fPrintToDebugger = false;
asciilifeform_and...   24 bool fCanEat = false;
asciilifeform_add...   25 bool fVerifyAll = false;
genesis                26 char pszSetDataDir[MAX_PATH] = "";
genesis                27 bool fRequestShutdown = false;
genesis                28 bool fShutdown = false;
genesis                29 bool fDaemon = false;
genesis                30 bool fServer = false;
asciilifeform_wir...   31 bool fWires = false;
asciilifeform_wir...   32 int wireRefresh = DEFAULT_WIRE_REFRESH;
genesis                33 bool fCommandLine = false;
genesis                34 string strMiscWarning;
genesis                35 bool fNoListen = false;
genesis                36 bool fLogTimestamps = false;
mod6_der_high_low_s    37 bool fLowS = false;
mod6_der_high_low_s    38 bool fHighS = false;
genesis                39 
programmable-vers...   40 std::string CLIENT_NAME(DEFAULT_CLIENT_NAME);
genesis                41 
genesis                42 
genesis                43 // Workaround for "multiple definition of `_tls_used'"
genesis                44 // http://svn.boost.org/trac/boost/ticket/4258
genesis                45 extern "C" void tss_cleanup_implemented() { }
genesis                46 
genesis                47 
genesis                48 
genesis                49 
genesis                50 
genesis                51 // Init openssl library multithreading support
genesis                52 static boost::interprocess::interprocess_mutex** ppmutexOpenSSL;
genesis                53 void locking_callback(int mode, int i, const char* file, int line)
genesis                54 {
genesis                55     if (mode & CRYPTO_LOCK)
genesis                56         ppmutexOpenSSL[i]->lock();
genesis                57     else
genesis                58         ppmutexOpenSSL[i]->unlock();
genesis                59 }
genesis                60 
genesis                61 // Init
genesis                62 class CInit
genesis                63 {
genesis                64 public:
genesis                65     CInit()
genesis                66     {
genesis                67         // Init openssl library multithreading support
genesis                68         ppmutexOpenSSL = (boost::interprocess::interprocess_mutex**)OPENSSL_malloc(CRYPTO_num_locks() * sizeof(boost::interprocess::interprocess_mutex*));
genesis                69         for (int i = 0; i < CRYPTO_num_locks(); i++)
genesis                70             ppmutexOpenSSL[i] = new boost::interprocess::interprocess_mutex();
genesis                71         CRYPTO_set_locking_callback(locking_callback);
genesis                72 
genesis                73         // Seed random number generator with performance counter
genesis                74         RandAddSeed();
genesis                75     }
genesis                76     ~CInit()
genesis                77     {
genesis                78         // Shutdown openssl library multithreading support
genesis                79         CRYPTO_set_locking_callback(NULL);
genesis                80         for (int i = 0; i < CRYPTO_num_locks(); i++)
genesis                81             delete ppmutexOpenSSL[i];
genesis                82         OPENSSL_free(ppmutexOpenSSL);
genesis                83     }
genesis                84 }
genesis                85 instance_of_cinit;
genesis                86 
genesis                87 
genesis                88 
genesis                89 
genesis                90 
genesis                91 
genesis                92 
genesis                93 
genesis                94 void RandAddSeed()
genesis                95 {
genesis                96     // Seed with CPU performance counter
genesis                97     int64 nCounter = GetPerformanceCounter();
genesis                98     RAND_add(&nCounter, sizeof(nCounter), 1.5);
genesis                99     memset(&nCounter, 0, sizeof(nCounter));
genesis               100 }
genesis               101 
genesis               102 void RandAddSeedPerfmon()
genesis               103 {
genesis               104     RandAddSeed();
genesis               105 
genesis               106     // This can take up to 2 seconds, so only do it every 10 minutes
genesis               107     static int64 nLastPerfmon;
genesis               108     if (GetTime() < nLastPerfmon + 10 * 60)
genesis               109         return;
genesis               110     nLastPerfmon = GetTime();
genesis               111 
genesis               112 }
genesis               113 
genesis               114 uint64 GetRand(uint64 nMax)
genesis               115 {
genesis               116     if (nMax == 0)
genesis               117         return 0;
genesis               118 
genesis               119     // The range of the random source must be a multiple of the modulus
genesis               120     // to give every possible output value an equal possibility
genesis               121     uint64 nRange = (UINT64_MAX / nMax) * nMax;
genesis               122     uint64 nRand = 0;
genesis               123     do
genesis               124         RAND_bytes((unsigned char*)&nRand, sizeof(nRand));
genesis               125     while (nRand >= nRange);
genesis               126     return (nRand % nMax);
genesis               127 }
genesis               128 
genesis               129 int GetRandInt(int nMax)
genesis               130 {
genesis               131     return GetRand(nMax);
genesis               132 }
genesis               133 
genesis               134 
genesis               135 
genesis               136 
genesis               137 
genesis               138 
genesis               139 
genesis               140 
genesis               141 
genesis               142 
genesis               143 
genesis               144 inline int OutputDebugStringF(const char* pszFormat, ...)
genesis               145 {
genesis               146     int ret = 0;
genesis               147     if (fPrintToConsole)
genesis               148     {
genesis               149         // print to console
genesis               150         va_list arg_ptr;
genesis               151         va_start(arg_ptr, pszFormat);
genesis               152         ret = vprintf(pszFormat, arg_ptr);
genesis               153         va_end(arg_ptr);
genesis               154     }
genesis               155     else
genesis               156     {
genesis               157         // print to debug.log
genesis               158         static FILE* fileout = NULL;
genesis               159 
genesis               160         if (!fileout)
genesis               161         {
genesis               162             char pszFile[MAX_PATH+100];
genesis               163             GetDataDir(pszFile);
genesis               164             strlcat(pszFile, "/debug.log", sizeof(pszFile));
genesis               165             fileout = fopen(pszFile, "a");
genesis               166             if (fileout) setbuf(fileout, NULL); // unbuffered
genesis               167         }
genesis               168         if (fileout)
genesis               169         {
genesis               170             static bool fStartedNewLine = true;
genesis               171 
genesis               172             // Debug print useful for profiling
genesis               173             if (fLogTimestamps && fStartedNewLine)
genesis               174                 fprintf(fileout, "%s ", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());
genesis               175             if (pszFormat[strlen(pszFormat) - 1] == '\n')
genesis               176                 fStartedNewLine = true;
genesis               177             else
genesis               178                 fStartedNewLine = false;
genesis               179 
genesis               180             va_list arg_ptr;
genesis               181             va_start(arg_ptr, pszFormat);
genesis               182             ret = vfprintf(fileout, pszFormat, arg_ptr);
genesis               183             va_end(arg_ptr);
genesis               184         }
genesis               185     }
genesis               186 
genesis               187     return ret;
genesis               188 }
genesis               189 
genesis               190 
genesis               191 // Safer snprintf
genesis               192 //  - prints up to limit-1 characters
genesis               193 //  - output string is always null terminated even if limit reached
genesis               194 //  - return value is the number of characters actually printed
genesis               195 int my_snprintf(char* buffer, size_t limit, const char* format, ...)
genesis               196 {
genesis               197     if (limit == 0)
genesis               198         return 0;
genesis               199     va_list arg_ptr;
genesis               200     va_start(arg_ptr, format);
genesis               201     int ret = _vsnprintf(buffer, limit, format, arg_ptr);
genesis               202     va_end(arg_ptr);
genesis               203     if (ret < 0 || ret >= limit)
genesis               204     {
genesis               205         ret = limit - 1;
genesis               206         buffer[limit-1] = 0;
genesis               207     }
genesis               208     return ret;
genesis               209 }
genesis               210 
genesis               211 string strprintf(const std::string &format, ...)
genesis               212 {
genesis               213     char buffer[50000];
genesis               214     char* p = buffer;
genesis               215     int limit = sizeof(buffer);
genesis               216     int ret;
genesis               217     loop
genesis               218     {
genesis               219         va_list arg_ptr;
genesis               220         va_start(arg_ptr, format);
genesis               221         ret = _vsnprintf(p, limit, format.c_str(), arg_ptr);
genesis               222         va_end(arg_ptr);
genesis               223         if (ret >= 0 && ret < limit)
genesis               224             break;
genesis               225         if (p != buffer)
genesis               226             delete[] p;
genesis               227         limit *= 2;
genesis               228         p = new char[limit];
genesis               229         if (p == NULL)
genesis               230             throw std::bad_alloc();
genesis               231     }
genesis               232     string str(p, p+ret);
genesis               233     if (p != buffer)
genesis               234         delete[] p;
genesis               235     return str;
genesis               236 }
genesis               237 
genesis               238 bool error(const std::string &format, ...)
genesis               239 {
genesis               240     char buffer[50000];
genesis               241     int limit = sizeof(buffer);
genesis               242     va_list arg_ptr;
genesis               243     va_start(arg_ptr, format);
genesis               244     int ret = _vsnprintf(buffer, limit, format.c_str(), arg_ptr);
genesis               245     va_end(arg_ptr);
genesis               246     if (ret < 0 || ret >= limit)
genesis               247     {
genesis               248         ret = limit - 1;
genesis               249         buffer[limit-1] = 0;
genesis               250     }
genesis               251     printf("ERROR: %s\n", buffer);
genesis               252     return false;
genesis               253 }
genesis               254 
genesis               255 
genesis               256 void ParseString(const string& str, char c, vector<string>& v)
genesis               257 {
genesis               258     if (str.empty())
genesis               259         return;
genesis               260     string::size_type i1 = 0;
genesis               261     string::size_type i2;
genesis               262     loop
genesis               263     {
genesis               264         i2 = str.find(c, i1);
genesis               265         if (i2 == str.npos)
genesis               266         {
genesis               267             v.push_back(str.substr(i1));
genesis               268             return;
genesis               269         }
genesis               270         v.push_back(str.substr(i1, i2-i1));
genesis               271         i1 = i2+1;
genesis               272     }
genesis               273 }
genesis               274 
genesis               275 
genesis               276 string FormatMoney(int64 n, bool fPlus)
genesis               277 {
genesis               278     // Note: not using straight sprintf here because we do NOT want
genesis               279     // localized number formatting.
genesis               280     int64 n_abs = (n > 0 ? n : -n);
genesis               281     int64 quotient = n_abs/COIN;
genesis               282     int64 remainder = n_abs%COIN;
genesis               283     string str = strprintf("%"PRI64d".%08"PRI64d, quotient, remainder);
genesis               284 
genesis               285     // Right-trim excess 0's before the decimal point:
genesis               286     int nTrim = 0;
genesis               287     for (int i = str.size()-1; (str[i] == '0' && isdigit(str[i-2])); --i)
genesis               288         ++nTrim;
genesis               289     if (nTrim)
genesis               290         str.erase(str.size()-nTrim, nTrim);
genesis               291 
genesis               292     if (n < 0)
genesis               293         str.insert((unsigned int)0, 1, '-');
genesis               294     else if (fPlus && n > 0)
genesis               295         str.insert((unsigned int)0, 1, '+');
genesis               296     return str;
genesis               297 }
genesis               298 
genesis               299 
genesis               300 bool ParseMoney(const string& str, int64& nRet)
genesis               301 {
genesis               302     return ParseMoney(str.c_str(), nRet);
genesis               303 }
genesis               304 
genesis               305 bool ParseMoney(const char* pszIn, int64& nRet)
genesis               306 {
genesis               307     string strWhole;
genesis               308     int64 nUnits = 0;
genesis               309     const char* p = pszIn;
genesis               310     while (isspace(*p))
genesis               311         p++;
genesis               312     for (; *p; p++)
genesis               313     {
genesis               314         if (*p == '.')
genesis               315         {
genesis               316             p++;
genesis               317             int64 nMult = CENT*10;
genesis               318             while (isdigit(*p) && (nMult > 0))
genesis               319             {
genesis               320                 nUnits += nMult * (*p++ - '0');
genesis               321                 nMult /= 10;
genesis               322             }
genesis               323             break;
genesis               324         }
genesis               325         if (isspace(*p))
genesis               326             break;
genesis               327         if (!isdigit(*p))
genesis               328             return false;
genesis               329         strWhole.insert(strWhole.end(), *p);
genesis               330     }
genesis               331     for (; *p; p++)
genesis               332         if (!isspace(*p))
genesis               333             return false;
genesis               334     if (strWhole.size() > 10) // guard against 63 bit overflow
genesis               335         return false;
genesis               336     if (nUnits < 0 || nUnits > COIN)
genesis               337         return false;
genesis               338     int64 nWhole = atoi64(strWhole);
genesis               339     int64 nValue = nWhole*COIN + nUnits;
genesis               340 
genesis               341     nRet = nValue;
genesis               342     return true;
genesis               343 }
genesis               344 
genesis               345 
genesis               346 vector<unsigned char> ParseHex(const char* psz)
genesis               347 {
genesis               348     static char phexdigit[256] =
genesis               349     { -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
genesis               350       -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
genesis               351       -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
genesis               352       0,1,2,3,4,5,6,7,8,9,-1,-1,-1,-1,-1,-1,
genesis               353       -1,0xa,0xb,0xc,0xd,0xe,0xf,-1,-1,-1,-1,-1,-1,-1,-1,-1,
genesis               354       -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
genesis               355       -1,0xa,0xb,0xc,0xd,0xe,0xf,-1,-1,-1,-1,-1,-1,-1,-1,-1
genesis               356       -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
genesis               357       -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
genesis               358       -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
genesis               359       -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
genesis               360       -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
genesis               361       -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
genesis               362       -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
genesis               363       -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
genesis               364       -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, };
genesis               365 
genesis               366     // convert hex dump to vector
genesis               367     vector<unsigned char> vch;
genesis               368     loop
genesis               369     {
genesis               370         while (isspace(*psz))
genesis               371             psz++;
genesis               372         char c = phexdigit[(unsigned char)*psz++];
genesis               373         if (c == (char)-1)
genesis               374             break;
genesis               375         unsigned char n = (c << 4);
genesis               376         c = phexdigit[(unsigned char)*psz++];
genesis               377         if (c == (char)-1)
genesis               378             break;
genesis               379         n |= c;
genesis               380         vch.push_back(n);
genesis               381     }
genesis               382     return vch;
genesis               383 }
genesis               384 
genesis               385 vector<unsigned char> ParseHex(const string& str)
genesis               386 {
genesis               387     return ParseHex(str.c_str());
genesis               388 }
genesis               389 
genesis               390 void ParseParameters(int argc, char* argv[])
genesis               391 {
genesis               392     mapArgs.clear();
genesis               393     mapMultiArgs.clear();
genesis               394     for (int i = 1; i < argc; i++)
genesis               395     {
genesis               396         char psz[10000];
genesis               397         strlcpy(psz, argv[i], sizeof(psz));
genesis               398         char* pszValue = (char*)"";
genesis               399         if (strchr(psz, '='))
genesis               400         {
genesis               401             pszValue = strchr(psz, '=');
genesis               402             *pszValue++ = '\0';
genesis               403         }
genesis               404         if (psz[0] != '-')
genesis               405             break;
genesis               406         mapArgs[psz] = pszValue;
genesis               407         mapMultiArgs[psz].push_back(pszValue);
genesis               408     }
genesis               409 }
genesis               410 
genesis               411 bool SoftSetArg(const std::string& strArg, const std::string& strValue)
genesis               412 {
genesis               413     if (mapArgs.count(strArg))
genesis               414         return false;
genesis               415     mapArgs[strArg] = strValue;
genesis               416     return true;
genesis               417 }
genesis               418 
genesis               419 bool SoftSetArg(const std::string& strArg, bool fValue)
genesis               420 {
genesis               421     if (fValue)
genesis               422         return SoftSetArg(strArg, std::string("1"));
genesis               423     else
genesis               424         return SoftSetArg(strArg, std::string("0"));
genesis               425 }
genesis               426 
genesis               427 
genesis               428 string EncodeBase64(const unsigned char* pch, size_t len)
genesis               429 {
genesis               430     static const char *pbase64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
genesis               431 
genesis               432     string strRet="";
genesis               433     strRet.reserve((len+2)/3*4);
genesis               434 
genesis               435     int mode=0, left=0;
genesis               436     const unsigned char *pchEnd = pch+len;
genesis               437 
genesis               438     while (pch<pchEnd)
genesis               439     {
genesis               440         int enc = *(pch++);
genesis               441         switch (mode)
genesis               442         {
genesis               443             case 0: // we have no bits
genesis               444                 strRet += pbase64[enc >> 2];
genesis               445                 left = (enc & 3) << 4;
genesis               446                 mode = 1;
genesis               447                 break;
genesis               448 
genesis               449             case 1: // we have two bits
genesis               450                 strRet += pbase64[left | (enc >> 4)];
genesis               451                 left = (enc & 15) << 2;
genesis               452                 mode = 2;
genesis               453                 break;
genesis               454 
genesis               455             case 2: // we have four bits
genesis               456                 strRet += pbase64[left | (enc >> 6)];
genesis               457                 strRet += pbase64[enc & 63];
genesis               458                 mode = 0;
genesis               459                 break;
genesis               460         }
genesis               461     }
genesis               462 
genesis               463     if (mode)
genesis               464     {
genesis               465         strRet += pbase64[left];
genesis               466         strRet += '=';
genesis               467         if (mode == 1)
genesis               468             strRet += '=';
genesis               469     }
genesis               470 
genesis               471     return strRet;
genesis               472 }
genesis               473 
genesis               474 string EncodeBase64(const string& str)
genesis               475 {
genesis               476     return EncodeBase64((const unsigned char*)str.c_str(), str.size());
genesis               477 }
genesis               478 
genesis               479 vector<unsigned char> DecodeBase64(const char* p, bool* pfInvalid)
genesis               480 {
genesis               481     static const int decode64_table[256] =
genesis               482     {
genesis               483         -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
genesis               484         -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
genesis               485         -1, -1, -1, 62, -1, -1, -1, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1,
genesis               486         -1, -1, -1, -1, -1,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
genesis               487         15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28,
genesis               488         29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
genesis               489         49, 50, 51, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
genesis               490         -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
genesis               491         -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
genesis               492         -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
genesis               493         -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
genesis               494         -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
genesis               495         -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
genesis               496     };
genesis               497 
genesis               498     if (pfInvalid)
genesis               499         *pfInvalid = false;
genesis               500 
genesis               501     vector<unsigned char> vchRet;
genesis               502     vchRet.reserve(strlen(p)*3/4);
genesis               503 
genesis               504     int mode = 0;
genesis               505     int left = 0;
genesis               506 
genesis               507     while (1)
genesis               508     {
genesis               509          int dec = decode64_table[*p];
genesis               510          if (dec == -1) break;
genesis               511          p++;
genesis               512          switch (mode)
genesis               513          {
genesis               514              case 0: // we have no bits and get 6
genesis               515                  left = dec;
genesis               516                  mode = 1;
genesis               517                  break;
genesis               518 
genesis               519               case 1: // we have 6 bits and keep 4
genesis               520                   vchRet.push_back((left<<2) | (dec>>4));
genesis               521                   left = dec & 15;
genesis               522                   mode = 2;
genesis               523                   break;
genesis               524 
genesis               525              case 2: // we have 4 bits and get 6, we keep 2
genesis               526                  vchRet.push_back((left<<4) | (dec>>2));
genesis               527                  left = dec & 3;
genesis               528                  mode = 3;
genesis               529                  break;
genesis               530 
genesis               531              case 3: // we have 2 bits and get 6
genesis               532                  vchRet.push_back((left<<6) | dec);
genesis               533                  mode = 0;
genesis               534                  break;
genesis               535          }
genesis               536     }
genesis               537 
genesis               538     if (pfInvalid)
genesis               539         switch (mode)
genesis               540         {
genesis               541             case 0: // 4n base64 characters processed: ok
genesis               542                 break;
genesis               543 
genesis               544             case 1: // 4n+1 base64 character processed: impossible
genesis               545                 *pfInvalid = true;
genesis               546                 break;
genesis               547 
genesis               548             case 2: // 4n+2 base64 characters processed: require '=='
genesis               549                 if (left || p[0] != '=' || p[1] != '=' || decode64_table[p[2]] != -1)
genesis               550                     *pfInvalid = true;
genesis               551                 break;
genesis               552 
genesis               553             case 3: // 4n+3 base64 characters processed: require '='
genesis               554                 if (left || p[0] != '=' || decode64_table[p[1]] != -1)
genesis               555                     *pfInvalid = true;
genesis               556                 break;
genesis               557         }
genesis               558 
genesis               559     return vchRet;
genesis               560 }
genesis               561 
genesis               562 string DecodeBase64(const string& str)
genesis               563 {
genesis               564     vector<unsigned char> vchRet = DecodeBase64(str.c_str());
genesis               565     return string((const char*)&vchRet[0], vchRet.size());
genesis               566 }
genesis               567 
genesis               568 
genesis               569 bool WildcardMatch(const char* psz, const char* mask)
genesis               570 {
genesis               571     loop
genesis               572     {
genesis               573         switch (*mask)
genesis               574         {
genesis               575         case '\0':
genesis               576             return (*psz == '\0');
genesis               577         case '*':
genesis               578             return WildcardMatch(psz, mask+1) || (*psz && WildcardMatch(psz+1, mask));
genesis               579         case '?':
genesis               580             if (*psz == '\0')
genesis               581                 return false;
genesis               582             break;
genesis               583         default:
genesis               584             if (*psz != *mask)
genesis               585                 return false;
genesis               586             break;
genesis               587         }
genesis               588         psz++;
genesis               589         mask++;
genesis               590     }
genesis               591 }
genesis               592 
genesis               593 bool WildcardMatch(const string& str, const string& mask)
genesis               594 {
genesis               595     return WildcardMatch(str.c_str(), mask.c_str());
genesis               596 }
genesis               597 
genesis               598 
genesis               599 
genesis               600 
genesis               601 
genesis               602 
genesis               603 
genesis               604 
genesis               605 void FormatException(char* pszMessage, std::exception* pex, const char* pszThread)
genesis               606 {
genesis               607     const char* pszModule = "bitcoin";
genesis               608     if (pex)
genesis               609         snprintf(pszMessage, 1000,
genesis               610             "EXCEPTION: %s       \n%s       \n%s in %s       \n", typeid(*pex).name(), pex->what(), pszModule, pszThread);
genesis               611     else
genesis               612         snprintf(pszMessage, 1000,
genesis               613             "UNKNOWN EXCEPTION       \n%s in %s       \n", pszModule, pszThread);
genesis               614 }
genesis               615 
genesis               616 void LogException(std::exception* pex, const char* pszThread)
genesis               617 {
genesis               618     char pszMessage[10000];
genesis               619     FormatException(pszMessage, pex, pszThread);
genesis               620     printf("\n%s", pszMessage);
genesis               621 }
genesis               622 
genesis               623 void PrintException(std::exception* pex, const char* pszThread)
genesis               624 {
genesis               625     char pszMessage[10000];
genesis               626     FormatException(pszMessage, pex, pszThread);
genesis               627     printf("\n\n************************\n%s\n", pszMessage);
genesis               628     fprintf(stderr, "\n\n************************\n%s\n", pszMessage);
genesis               629     strMiscWarning = pszMessage;
genesis               630     throw;
genesis               631 }
genesis               632 
genesis               633 void ThreadOneMessageBox(string strMessage)
genesis               634 {
genesis               635     // Skip message boxes if one is already open
genesis               636     static bool fMessageBoxOpen;
genesis               637     if (fMessageBoxOpen)
genesis               638         return;
genesis               639     fMessageBoxOpen = true;
genesis               640     ThreadSafeMessageBox(strMessage, "Bitcoin", wxOK | wxICON_EXCLAMATION);
genesis               641     fMessageBoxOpen = false;
genesis               642 }
genesis               643 
genesis               644 void PrintExceptionContinue(std::exception* pex, const char* pszThread)
genesis               645 {
genesis               646     char pszMessage[10000];
genesis               647     FormatException(pszMessage, pex, pszThread);
genesis               648     printf("\n\n************************\n%s\n", pszMessage);
genesis               649     fprintf(stderr, "\n\n************************\n%s\n", pszMessage);
genesis               650     strMiscWarning = pszMessage;
genesis               651 }
genesis               652 
genesis               653 string GetDefaultDataDir()
genesis               654 {
genesis               655     // Mac: ~/Library/Application Support/Bitcoin
genesis               656     // Unix: ~/.bitcoin
genesis               657     char* pszHome = getenv("HOME");
genesis               658     if (pszHome == NULL || strlen(pszHome) == 0)
genesis               659         pszHome = (char*)"/";
genesis               660     string strHome = pszHome;
genesis               661     if (strHome[strHome.size()-1] != '/')
genesis               662         strHome += '/';
genesis               663 #ifdef MAC_OSX
genesis               664     // Mac
genesis               665     strHome += "Library/Application Support/";
genesis               666     filesystem::create_directory(strHome.c_str());
genesis               667     return strHome + "Bitcoin";
genesis               668 #else
genesis               669     // Unix
genesis               670     return strHome + ".bitcoin";
genesis               671 #endif
genesis               672 }
genesis               673 
genesis               674 void GetDataDir(char* pszDir)
genesis               675 {
genesis               676     // pszDir must be at least MAX_PATH length.
genesis               677     int nVariation;
genesis               678     if (pszSetDataDir[0] != 0)
genesis               679     {
genesis               680         strlcpy(pszDir, pszSetDataDir, MAX_PATH);
genesis               681         nVariation = 0;
genesis               682     }
genesis               683     else
genesis               684     {
genesis               685         // This can be called during exceptions by printf, so we cache the
genesis               686         // value so we don't have to do memory allocations after that.
genesis               687         static char pszCachedDir[MAX_PATH];
genesis               688         if (pszCachedDir[0] == 0)
genesis               689             strlcpy(pszCachedDir, GetDefaultDataDir().c_str(), sizeof(pszCachedDir));
genesis               690         strlcpy(pszDir, pszCachedDir, MAX_PATH);
genesis               691         nVariation = 1;
genesis               692     }
genesis               693     static bool pfMkdir[4];
genesis               694     if (!pfMkdir[nVariation])
genesis               695     {
genesis               696         pfMkdir[nVariation] = true;
genesis               697         boost::filesystem::create_directory(pszDir);
genesis               698     }
genesis               699 }
genesis               700 
genesis               701 string GetDataDir()
genesis               702 {
genesis               703     char pszDir[MAX_PATH];
genesis               704     GetDataDir(pszDir);
genesis               705     return pszDir;
genesis               706 }
genesis               707 
genesis               708 string GetConfigFile()
genesis               709 {
genesis               710     namespace fs = boost::filesystem;
genesis               711     fs::path pathConfig(GetArg("-conf", "bitcoin.conf"));
genesis               712     if (!pathConfig.is_complete())
genesis               713         pathConfig = fs::path(GetDataDir()) / pathConfig;
genesis               714     return pathConfig.string();
genesis               715 }
genesis               716 
genesis               717 void ReadConfigFile(map<string, string>& mapSettingsRet,
genesis               718                     map<string, vector<string> >& mapMultiSettingsRet)
genesis               719 {
genesis               720     namespace fs = boost::filesystem;
genesis               721     namespace pod = boost::program_options::detail;
genesis               722 
genesis               723     fs::ifstream streamConfig(GetConfigFile());
genesis               724     if (!streamConfig.good())
genesis               725         return;
genesis               726 
genesis               727     set<string> setOptions;
genesis               728     setOptions.insert("*");
genesis               729     
genesis               730     for (pod::config_file_iterator it(streamConfig, setOptions), end; it != end; ++it)
genesis               731     {
genesis               732         // Don't overwrite existing settings so command line settings override bitcoin.conf
genesis               733         string strKey = string("-") + it->string_key;
genesis               734         if (mapSettingsRet.count(strKey) == 0)
genesis               735             mapSettingsRet[strKey] = it->value[0];
genesis               736         mapMultiSettingsRet[strKey].push_back(it->value[0]);
genesis               737     }
genesis               738 }
genesis               739 
genesis               740 string GetPidFile()
genesis               741 {
genesis               742     namespace fs = boost::filesystem;
genesis               743     fs::path pathConfig(GetArg("-pid", "bitcoind.pid"));
genesis               744     if (!pathConfig.is_complete())
genesis               745         pathConfig = fs::path(GetDataDir()) / pathConfig;
genesis               746     return pathConfig.string();
genesis               747 }
genesis               748 
genesis               749 void CreatePidFile(string pidFile, pid_t pid)
genesis               750 {
genesis               751     FILE* file = fopen(pidFile.c_str(), "w");
genesis               752     if (file)
genesis               753     {
genesis               754         fprintf(file, "%d\n", pid);
genesis               755         fclose(file);
genesis               756     }
genesis               757 }
genesis               758 
genesis               759 int GetFilesize(FILE* file)
genesis               760 {
genesis               761     int nSavePos = ftell(file);
genesis               762     int nFilesize = -1;
genesis               763     if (fseek(file, 0, SEEK_END) == 0)
genesis               764         nFilesize = ftell(file);
genesis               765     fseek(file, nSavePos, SEEK_SET);
genesis               766     return nFilesize;
genesis               767 }
genesis               768 
genesis               769 void ShrinkDebugFile()
genesis               770 {
genesis               771     // Scroll debug.log if it's getting too big
genesis               772     string strFile = GetDataDir() + "/debug.log";
genesis               773     FILE* file = fopen(strFile.c_str(), "r");
genesis               774     if (file && GetFilesize(file) > 10 * 1000000)
genesis               775     {
genesis               776         // Restart the file with some of the end
genesis               777         char pch[200000];
genesis               778         fseek(file, -sizeof(pch), SEEK_END);
genesis               779         int nBytes = fread(pch, 1, sizeof(pch), file);
genesis               780         fclose(file);
genesis               781 
genesis               782         file = fopen(strFile.c_str(), "w");
genesis               783         if (file)
genesis               784         {
genesis               785             fwrite(pch, 1, nBytes, file);
genesis               786             fclose(file);
genesis               787         }
genesis               788     }
genesis               789 }
genesis               790 
genesis               791 
genesis               792 
genesis               793 
genesis               794 
genesis               795 
genesis               796 
genesis               797 
genesis               798 //
genesis               799 // "Never go to sea with two chronometers; take one or three."
genesis               800 // Our three time sources are:
genesis               801 //  - System clock
genesis               802 //  - Median of other nodes's clocks
genesis               803 //  - The user (asking the user to fix the system clock if the first two disagree)
genesis               804 //
genesis               805 static int64 nMockTime = 0;  // For unit testing
genesis               806 
genesis               807 int64 GetTime()
genesis               808 {
genesis               809     if (nMockTime) return nMockTime;
genesis               810 
genesis               811     return time(NULL);
genesis               812 }
genesis               813 
genesis               814 void SetMockTime(int64 nMockTimeIn)
genesis               815 {
genesis               816     nMockTime = nMockTimeIn;
genesis               817 }
genesis               818 
genesis               819 static int64 nTimeOffset = 0;
genesis               820 
genesis               821 int64 GetAdjustedTime()
genesis               822 {
genesis               823     return GetTime() + nTimeOffset;
genesis               824 }
genesis               825 
genesis               826 void AddTimeData(unsigned int ip, int64 nTime)
genesis               827 {
genesis               828     int64 nOffsetSample = nTime - GetTime();
genesis               829 
genesis               830     // Ignore duplicates
genesis               831     static set<unsigned int> setKnown;
genesis               832     if (!setKnown.insert(ip).second)
genesis               833         return;
genesis               834 
genesis               835     // Add data
genesis               836     static vector<int64> vTimeOffsets;
genesis               837     if (vTimeOffsets.empty())
genesis               838         vTimeOffsets.push_back(0);
genesis               839     vTimeOffsets.push_back(nOffsetSample);
genesis               840     printf("Added time data, samples %d, offset %+"PRI64d" (%+"PRI64d" minutes)\n", vTimeOffsets.size(), vTimeOffsets.back(), vTimeOffsets.back()/60);
genesis               841     if (vTimeOffsets.size() >= 5 && vTimeOffsets.size() % 2 == 1)
genesis               842     {
genesis               843         sort(vTimeOffsets.begin(), vTimeOffsets.end());
genesis               844         int64 nMedian = vTimeOffsets[vTimeOffsets.size()/2];
genesis               845         // Only let other nodes change our time by so much
genesis               846         if (abs64(nMedian) < 70 * 60)
genesis               847         {
genesis               848             nTimeOffset = nMedian;
genesis               849         }
genesis               850         else
genesis               851         {
genesis               852             nTimeOffset = 0;
genesis               853 
genesis               854             static bool fDone;
genesis               855             if (!fDone)
genesis               856             {
genesis               857                 // If nobody has a time different than ours but within 5 minutes of ours, give a warning
genesis               858                 bool fMatch = false;
genesis               859                 BOOST_FOREACH(int64 nOffset, vTimeOffsets)
genesis               860                     if (nOffset != 0 && abs64(nOffset) < 5 * 60)
genesis               861                         fMatch = true;
genesis               862 
genesis               863                 if (!fMatch)
genesis               864                 {
genesis               865                     fDone = true;
genesis               866                     string strMessage = _("Warning: Please check that your computer's date and time are correct.  If your clock is wrong Bitcoin will not work properly.");
genesis               867                     strMiscWarning = strMessage;
genesis               868                     printf("*** %s\n", strMessage.c_str());
genesis               869                     boost::thread(boost::bind(ThreadSafeMessageBox, strMessage+" ", string("Bitcoin"), wxOK | wxICON_EXCLAMATION, (wxWindow*)NULL, -1, -1));
genesis               870                 }
genesis               871             }
genesis               872         }
genesis               873         BOOST_FOREACH(int64 n, vTimeOffsets)
genesis               874             printf("%+"PRI64d"  ", n);
genesis               875         printf("|  nTimeOffset = %+"PRI64d"  (%+"PRI64d" minutes)\n", nTimeOffset, nTimeOffset/60);
genesis               876     }
genesis               877 }
genesis               878 
genesis               879 
genesis               880 
genesis               881 
genesis               882 
genesis               883 
genesis               884 
genesis               885 
genesis               886 
genesis               887 string FormatVersion(int nVersion)
genesis               888 {
genesis               889     if (nVersion%100 == 0)
genesis               890         return strprintf("%d.%d.%d", nVersion/1000000, (nVersion/10000)%100, (nVersion/100)%100);
genesis               891     else
genesis               892         return strprintf("%d.%d.%d.%d", nVersion/1000000, (nVersion/10000)%100, (nVersion/100)%100, nVersion%100);
genesis               893 }
genesis               894 
genesis               895 string FormatFullVersion()
genesis               896 {
programmable-vers...  897     string s = FormatVersion(VERSION);
genesis               898     return s;
genesis               899 }
genesis               900 
programmable-vers...  901 std::string FormatSubVersion(const std::string& name, int nClientVersion)
programmable-vers...  902 {
programmable-vers...  903     std::ostringstream ss;
programmable-vers...  904     ss << "/";
programmable-vers...  905     ss << name << ":" << FormatVersion(nClientVersion);
programmable-vers...  906     ss << "/";
programmable-vers...  907     return ss.str();
programmable-vers...  908 }
genesis               909 
genesis               910 
genesis               911 
genesis               912 #ifdef DEBUG_LOCKORDER
genesis               913 //
genesis               914 // Early deadlock detection.
genesis               915 // Problem being solved:
genesis               916 //    Thread 1 locks  A, then B, then C
genesis               917 //    Thread 2 locks  D, then C, then A
genesis               918 //     --> may result in deadlock between the two threads, depending on when they run.
genesis               919 // Solution implemented here:
genesis               920 // Keep track of pairs of locks: (A before B), (A before C), etc.
genesis               921 // Complain if any thread trys to lock in a different order.
genesis               922 //
genesis               923 
genesis               924 struct CLockLocation
genesis               925 {
genesis               926     CLockLocation(const char* pszName, const char* pszFile, int nLine)
genesis               927     {
genesis               928         mutexName = pszName;
genesis               929         sourceFile = pszFile;
genesis               930         sourceLine = nLine;
genesis               931     }
genesis               932 
genesis               933     std::string ToString() const
genesis               934     {
genesis               935         return mutexName+"  "+sourceFile+":"+itostr(sourceLine);
genesis               936     }
genesis               937 
genesis               938 private:
genesis               939     std::string mutexName;
genesis               940     std::string sourceFile;
genesis               941     int sourceLine;
genesis               942 };
genesis               943 
genesis               944 typedef std::vector< std::pair<CCriticalSection*, CLockLocation> > LockStack;
genesis               945 
genesis               946 static boost::interprocess::interprocess_mutex dd_mutex;
genesis               947 static std::map<std::pair<CCriticalSection*, CCriticalSection*>, LockStack> lockorders;
genesis               948 static boost::thread_specific_ptr<LockStack> lockstack;
genesis               949 
genesis               950 
genesis               951 static void potential_deadlock_detected(const std::pair<CCriticalSection*, CCriticalSection*>& mismatch, const LockStack& s1, const LockStack& s2)
genesis               952 {
genesis               953     printf("POTENTIAL DEADLOCK DETECTED\n");
genesis               954     printf("Previous lock order was:\n");
genesis               955     BOOST_FOREACH(const PAIRTYPE(CCriticalSection*, CLockLocation)& i, s2)
genesis               956     {
genesis               957         if (i.first == mismatch.first) printf(" (1)");
genesis               958         if (i.first == mismatch.second) printf(" (2)");
genesis               959         printf(" %s\n", i.second.ToString().c_str());
genesis               960     }
genesis               961     printf("Current lock order is:\n");
genesis               962     BOOST_FOREACH(const PAIRTYPE(CCriticalSection*, CLockLocation)& i, s1)
genesis               963     {
genesis               964         if (i.first == mismatch.first) printf(" (1)");
genesis               965         if (i.first == mismatch.second) printf(" (2)");
genesis               966         printf(" %s\n", i.second.ToString().c_str());
genesis               967     }
genesis               968 }
genesis               969 
genesis               970 static void push_lock(CCriticalSection* c, const CLockLocation& locklocation)
genesis               971 {
genesis               972     bool fOrderOK = true;
genesis               973     if (lockstack.get() == NULL)
genesis               974         lockstack.reset(new LockStack);
genesis               975 
genesis               976     if (fDebug) printf("Locking: %s\n", locklocation.ToString().c_str());
genesis               977     dd_mutex.lock();
genesis               978 
genesis               979     (*lockstack).push_back(std::make_pair(c, locklocation));
genesis               980 
genesis               981     BOOST_FOREACH(const PAIRTYPE(CCriticalSection*, CLockLocation)& i, (*lockstack))
genesis               982     {
genesis               983         if (i.first == c) break;
genesis               984 
genesis               985         std::pair<CCriticalSection*, CCriticalSection*> p1 = std::make_pair(i.first, c);
genesis               986         if (lockorders.count(p1))
genesis               987             continue;
genesis               988         lockorders[p1] = (*lockstack);
genesis               989 
genesis               990         std::pair<CCriticalSection*, CCriticalSection*> p2 = std::make_pair(c, i.first);
genesis               991         if (lockorders.count(p2))
genesis               992         {
genesis               993             potential_deadlock_detected(p1, lockorders[p2], lockorders[p1]);
genesis               994             break;
genesis               995         }
genesis               996     }
genesis               997     dd_mutex.unlock();
genesis               998 }
genesis               999 
genesis              1000 static void pop_lock()
genesis              1001 {
genesis              1002     if (fDebug) 
genesis              1003     {
genesis              1004         const CLockLocation& locklocation = (*lockstack).rbegin()->second;
genesis              1005         printf("Unlocked: %s\n", locklocation.ToString().c_str());
genesis              1006     }
genesis              1007     dd_mutex.lock();
genesis              1008     (*lockstack).pop_back();
genesis              1009     dd_mutex.unlock();
genesis              1010 }
genesis              1011 
genesis              1012 void CCriticalSection::Enter(const char* pszName, const char* pszFile, int nLine)
genesis              1013 {
genesis              1014     push_lock(this, CLockLocation(pszName, pszFile, nLine));
genesis              1015     mutex.lock();
genesis              1016 }
genesis              1017 void CCriticalSection::Leave()
genesis              1018 {
genesis              1019     mutex.unlock();
genesis              1020     pop_lock();
genesis              1021 }
genesis              1022 bool CCriticalSection::TryEnter(const char* pszName, const char* pszFile, int nLine)
genesis              1023 {
genesis              1024     push_lock(this, CLockLocation(pszName, pszFile, nLine));
genesis              1025     bool result = mutex.try_lock();
genesis              1026     if (!result) pop_lock();
genesis              1027     return result;
genesis              1028 }
genesis              1029 
genesis              1030 #else
genesis              1031 
genesis              1032 void CCriticalSection::Enter(const char*, const char*, int)
genesis              1033 {
genesis              1034     mutex.lock();
genesis              1035 }
genesis              1036 
genesis              1037 void CCriticalSection::Leave()
genesis              1038 {
genesis              1039     mutex.unlock();
genesis              1040 }
genesis              1041 
genesis              1042 bool CCriticalSection::TryEnter(const char*, const char*, int)
genesis              1043 {
genesis              1044     bool result = mutex.try_lock();
genesis              1045     return result;
genesis              1046 }
genesis              1047 
genesis              1048 #endif /* DEBUG_LOCKORDER */