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