asciilifeform-programmable-versionstring

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