1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2012 The Bitcoin developers
3 // Distributed under the MIT/X11 software license, see the accompanying
4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
11 #include <boost/algorithm/string/join.hpp>
12 #include <boost/algorithm/string/case_conv.hpp> // for to_lower()
13 #include <boost/algorithm/string/predicate.hpp> // for startswith() and endswith()
14 #include <boost/program_options/detail/config_file.hpp>
15 #include <boost/program_options/parsers.hpp>
16 #include <boost/filesystem.hpp>
17 #include <boost/filesystem/fstream.hpp>
18 #include <boost/date_time/posix_time/posix_time.hpp>
19 #include <boost/thread.hpp>
20 #include <openssl/crypto.h>
21 #include <openssl/rand.h>
24 #include <io.h> /* for _commit */
26 #elif defined(__linux__)
27 # include <sys/prctl.h>
30 #if !defined(WIN32) && !defined(ANDROID)
36 namespace bt = boost::posix_time;
38 map<string, string> mapArgs;
39 map<string, vector<string> > mapMultiArgs;
41 bool fDebugNet = false;
42 bool fPrintToConsole = false;
43 bool fPrintToDebugger = false;
44 bool fRequestShutdown = false;
45 bool fShutdown = false;
48 bool fCommandLine = false;
49 string strMiscWarning;
50 bool fTestNet = false;
51 bool fNoListen = false;
52 bool fLogTimestamps = false;
53 CMedianFilter<int64_t> vTimeOffsets(200,0);
54 bool fReopenDebugLog = false;
56 // Extended DecodeDumpTime implementation, see this page for details:
57 // http://stackoverflow.com/questions/3786201/parsing-of-date-time-from-string-boost
58 const std::locale formats[] = {
59 std::locale(std::locale::classic(),new bt::time_input_facet("%Y-%m-%dT%H:%M:%SZ")),
60 std::locale(std::locale::classic(),new bt::time_input_facet("%Y-%m-%d %H:%M:%S")),
61 std::locale(std::locale::classic(),new bt::time_input_facet("%Y/%m/%d %H:%M:%S")),
62 std::locale(std::locale::classic(),new bt::time_input_facet("%d.%m.%Y %H:%M:%S")),
63 std::locale(std::locale::classic(),new bt::time_input_facet("%Y-%m-%d"))
66 const size_t formats_n = sizeof(formats)/sizeof(formats[0]);
68 std::time_t pt_to_time_t(const bt::ptime& pt)
70 bt::ptime timet_start(boost::gregorian::date(1970,1,1));
71 bt::time_duration diff = pt - timet_start;
72 return diff.ticks()/bt::time_duration::rep_type::ticks_per_second;
75 // Init OpenSSL library multithreading support
76 static CCriticalSection** ppmutexOpenSSL;
77 void locking_callback(int mode, int i, const char* file, int line)
79 if (mode & CRYPTO_LOCK) {
80 ENTER_CRITICAL_SECTION(*ppmutexOpenSSL[i]);
82 LEAVE_CRITICAL_SECTION(*ppmutexOpenSSL[i]);
86 LockedPageManager LockedPageManager::instance;
94 // Init OpenSSL library multithreading support
95 ppmutexOpenSSL = (CCriticalSection**)OPENSSL_malloc(CRYPTO_num_locks() * sizeof(CCriticalSection*));
96 for (int i = 0; i < CRYPTO_num_locks(); i++)
97 ppmutexOpenSSL[i] = new CCriticalSection();
98 CRYPTO_set_locking_callback(locking_callback);
101 // Seed random number generator with screen scrape and other hardware sources
105 // Seed random number generator with performance counter
110 // Shutdown OpenSSL library multithreading support
111 CRYPTO_set_locking_callback(NULL);
112 for (int i = 0; i < CRYPTO_num_locks(); i++)
113 delete ppmutexOpenSSL[i];
114 OPENSSL_free(ppmutexOpenSSL);
128 // Seed with CPU performance counter
129 int64_t nCounter = GetPerformanceCounter();
130 RAND_add(&nCounter, sizeof(nCounter), 1.5);
131 memset(&nCounter, 0, sizeof(nCounter));
134 void RandAddSeedPerfmon()
138 // This can take up to 2 seconds, so only do it every 10 minutes
139 static int64_t nLastPerfmon;
140 if (GetTime() < nLastPerfmon + 10 * 60)
142 nLastPerfmon = GetTime();
145 // Don't need this on Linux, OpenSSL automatically uses /dev/urandom
146 // Seed with the entire set of perfmon data
147 unsigned char pdata[250000];
148 memset(pdata, 0, sizeof(pdata));
149 unsigned long nSize = sizeof(pdata);
150 long ret = RegQueryValueExA(HKEY_PERFORMANCE_DATA, "Global", NULL, NULL, pdata, &nSize);
151 RegCloseKey(HKEY_PERFORMANCE_DATA);
152 if (ret == ERROR_SUCCESS)
154 RAND_add(pdata, nSize, nSize/100.0);
155 OPENSSL_cleanse(pdata, nSize);
156 printf("RandAddSeed() %lu bytes\n", nSize);
161 uint64_t GetRand(uint64_t nMax)
166 // The range of the random source must be a multiple of the modulus
167 // to give every possible output value an equal possibility
168 uint64_t nRange = (std::numeric_limits<uint64_t>::max() / nMax) * nMax;
171 RAND_bytes((unsigned char*)&nRand, sizeof(nRand));
172 while (nRand >= nRange);
173 return (nRand % nMax);
176 int GetRandInt(int nMax)
178 return static_cast<int>(GetRand(nMax));
181 static FILE* fileout = NULL;
183 inline int OutputDebugStringF(const char* pszFormat, ...)
190 va_start(arg_ptr, pszFormat);
191 ret = vprintf(pszFormat, arg_ptr);
194 else if (!fPrintToDebugger)
196 // print to debug.log
200 boost::filesystem::path pathDebug = GetDataDir() / "debug.log";
201 fileout = fopen(pathDebug.string().c_str(), "a");
202 if (fileout) setbuf(fileout, NULL); // unbuffered
206 static bool fStartedNewLine = true;
208 // This routine may be called by global destructors during shutdown.
209 // Since the order of destruction of static/global objects is undefined,
210 // allocate mutexDebugLog on the heap the first time this routine
211 // is called to avoid crashes during shutdown.
212 static boost::mutex* mutexDebugLog = NULL;
213 if (mutexDebugLog == NULL) mutexDebugLog = new boost::mutex();
214 boost::mutex::scoped_lock scoped_lock(*mutexDebugLog);
216 // reopen the log file, if requested
217 if (fReopenDebugLog) {
218 fReopenDebugLog = false;
219 boost::filesystem::path pathDebug = GetDataDir() / "debug.log";
220 if (freopen(pathDebug.string().c_str(),"a",fileout) != NULL)
221 setbuf(fileout, NULL); // unbuffered
224 // Debug print useful for profiling
225 if (fLogTimestamps && fStartedNewLine)
226 fprintf(fileout, "%s ", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());
227 if (pszFormat[strlen(pszFormat) - 1] == '\n')
228 fStartedNewLine = true;
230 fStartedNewLine = false;
233 va_start(arg_ptr, pszFormat);
234 ret = vfprintf(fileout, pszFormat, arg_ptr);
240 if (fPrintToDebugger)
242 static CCriticalSection cs_OutputDebugStringF;
244 // accumulate and output a line at a time
246 LOCK(cs_OutputDebugStringF);
247 static std::string buffer;
250 va_start(arg_ptr, pszFormat);
251 buffer += vstrprintf(pszFormat, arg_ptr);
254 size_t line_start = 0, line_end;
255 while((line_end = buffer.find('\n', line_start)) != -1)
257 OutputDebugStringA(buffer.substr(line_start, line_end - line_start).c_str());
258 line_start = line_end + 1;
260 buffer.erase(0, line_start);
267 string vstrprintf(const char *format, va_list ap)
271 int limit = sizeof(buffer);
277 va_copy(arg_ptr, ap);
279 va_list arg_ptr = ap;
282 ret = _vsnprintf(p, limit, format, arg_ptr);
284 ret = vsnprintf(p, limit, format, arg_ptr);
287 if (ret >= 0 && ret < limit)
292 p = new(nothrow) char[limit];
294 throw std::bad_alloc();
296 string str(p, p+ret);
302 string real_strprintf(const char *format, int dummy, ...)
305 va_start(arg_ptr, dummy);
306 string str = vstrprintf(format, arg_ptr);
311 string real_strprintf(const std::string &format, int dummy, ...)
314 va_start(arg_ptr, dummy);
315 string str = vstrprintf(format.c_str(), arg_ptr);
320 bool error(const char *format, ...)
323 va_start(arg_ptr, format);
324 std::string str = vstrprintf(format, arg_ptr);
326 printf("ERROR: %s\n", str.c_str());
331 void ParseString(const string& str, char c, vector<string>& v)
335 string::size_type i1 = 0;
336 string::size_type i2;
339 i2 = str.find(c, i1);
342 v.push_back(str.substr(i1));
345 v.push_back(str.substr(i1, i2-i1));
351 string FormatMoney(int64_t n, bool fPlus)
353 // Note: not using straight sprintf here because we do NOT want
354 // localized number formatting.
355 int64_t n_abs = (n > 0 ? n : -n);
356 int64_t quotient = n_abs/COIN;
357 int64_t remainder = n_abs%COIN;
358 string str = strprintf("%" PRId64 ".%06" PRId64, quotient, remainder);
360 // Right-trim excess zeros before the decimal point:
362 for (size_t i = str.size()-1; (str[i] == '0' && isdigit(str[i-2])); --i)
365 str.erase(str.size()-nTrim, nTrim);
368 str.insert(0u, 1, '-');
369 else if (fPlus && n > 0)
370 str.insert(0u, 1, '+');
375 bool ParseMoney(const string& str, int64_t& nRet)
377 return ParseMoney(str.c_str(), nRet);
380 bool ParseMoney(const char* pszIn, int64_t& nRet)
384 const char* p = pszIn;
392 int64_t nMult = CENT*10;
393 while (isdigit(*p) && (nMult > 0))
395 nUnits += nMult * (*p++ - '0');
404 strWhole.insert(strWhole.end(), *p);
409 if (strWhole.size() > 10) // guard against 63 bit overflow
411 if (nUnits < 0 || nUnits > COIN)
413 int64_t nWhole = atoi64(strWhole);
414 int64_t nValue = nWhole*COIN + nUnits;
421 static const signed char phexdigit[256] =
422 { -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
423 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
424 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
425 0,1,2,3,4,5,6,7,8,9,-1,-1,-1,-1,-1,-1,
426 -1,0xa,0xb,0xc,0xd,0xe,0xf,-1,-1,-1,-1,-1,-1,-1,-1,-1,
427 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
428 -1,0xa,0xb,0xc,0xd,0xe,0xf,-1,-1,-1,-1,-1,-1,-1,-1,-1,
429 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
430 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
431 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
432 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
433 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
434 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
435 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
436 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
437 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, };
439 bool IsHex(const string& str)
441 for (unsigned char c : str)
443 if (phexdigit[c] < 0)
446 return (str.size() > 0) && (str.size()%2 == 0);
449 vector<unsigned char> ParseHex(const char* psz)
451 // convert hex dump to vector
452 vector<unsigned char> vch;
455 while (isspace(*psz))
457 signed char c = phexdigit[(unsigned char)*psz++];
458 if (c == (signed char)-1)
460 unsigned char n = (c << 4);
461 c = phexdigit[(unsigned char)*psz++];
462 if (c == (signed char)-1)
470 vector<unsigned char> ParseHex(const string& str)
472 return ParseHex(str.c_str());
475 static void InterpretNegativeSetting(string name, map<string, string>& mapSettingsRet)
477 // interpret -nofoo as -foo=0 (and -nofoo=0 as -foo=1) as long as -foo not set
478 if (name.find("-no") == 0)
480 std::string positive("-");
481 positive.append(name.begin()+3, name.end());
482 if (mapSettingsRet.count(positive) == 0)
484 bool value = !GetBoolArg(name);
485 mapSettingsRet[positive] = (value ? "1" : "0");
490 void ParseParameters(int argc, const char* const argv[])
493 mapMultiArgs.clear();
494 for (int i = 1; i < argc; i++)
496 std::string str(argv[i]);
497 std::string strValue;
498 size_t is_index = str.find('=');
499 if (is_index != std::string::npos)
501 strValue = str.substr(is_index+1);
502 str = str.substr(0, is_index);
505 boost::to_lower(str);
506 if (boost::algorithm::starts_with(str, "/"))
507 str = "-" + str.substr(1);
512 mapArgs[str] = strValue;
513 mapMultiArgs[str].push_back(strValue);
517 for (const auto& entry : mapArgs)
519 string name = entry.first;
521 // interpret --foo as -foo (as long as both are not set)
522 if (name.find("--") == 0)
524 std::string singleDash(name.begin()+1, name.end());
525 if (mapArgs.count(singleDash) == 0)
526 mapArgs[singleDash] = entry.second;
530 // interpret -nofoo as -foo=0 (and -nofoo=0 as -foo=1) as long as -foo not set
531 InterpretNegativeSetting(name, mapArgs);
535 std::string GetArg(const std::string& strArg, const std::string& strDefault)
537 if (mapArgs.count(strArg))
538 return mapArgs[strArg];
542 int64_t GetArg(const std::string& strArg, int64_t nDefault)
544 if (mapArgs.count(strArg))
545 return atoi64(mapArgs[strArg]);
549 int32_t GetArgInt(const std::string& strArg, int32_t nDefault)
551 if (mapArgs.count(strArg))
552 return strtol(mapArgs[strArg]);
556 uint32_t GetArgUInt(const std::string& strArg, uint32_t nDefault)
558 if (mapArgs.count(strArg))
559 return strtoul(mapArgs[strArg]);
563 bool GetBoolArg(const std::string& strArg, bool fDefault)
565 if (mapArgs.count(strArg))
567 if (mapArgs[strArg].empty())
569 return (atoi(mapArgs[strArg]) != 0);
574 bool SoftSetArg(const std::string& strArg, const std::string& strValue)
576 if (mapArgs.count(strArg) || mapMultiArgs.count(strArg))
578 mapArgs[strArg] = strValue;
579 mapMultiArgs[strArg].push_back(strValue);
584 bool SoftSetBoolArg(const std::string& strArg, bool fValue)
587 return SoftSetArg(strArg, std::string("1"));
589 return SoftSetArg(strArg, std::string("0"));
593 string EncodeBase64(const unsigned char* pch, size_t len)
595 static const char *pbase64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
598 strRet.reserve((len+2)/3*4);
601 const unsigned char *pchEnd = pch+len;
608 case 0: // we have no bits
609 strRet += pbase64[enc >> 2];
610 left = (enc & 3) << 4;
614 case 1: // we have two bits
615 strRet += pbase64[left | (enc >> 4)];
616 left = (enc & 15) << 2;
620 case 2: // we have four bits
621 strRet += pbase64[left | (enc >> 6)];
622 strRet += pbase64[enc & 63];
630 strRet += pbase64[left];
639 string EncodeBase64(const string& str)
641 return EncodeBase64((const unsigned char*)str.c_str(), str.size());
644 vector<unsigned char> DecodeBase64(const char* p, bool* pfInvalid)
646 static const int decode64_table[256] =
648 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
649 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
650 -1, -1, -1, 62, -1, -1, -1, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1,
651 -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
652 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28,
653 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
654 49, 50, 51, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
655 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
656 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
657 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
658 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
659 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
660 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
666 vector<unsigned char> vchRet;
667 vchRet.reserve(strlen(p)*3/4);
674 int dec = decode64_table[(unsigned char)*p];
675 if (dec == -1) break;
679 case 0: // we have no bits and get 6
684 case 1: // we have 6 bits and keep 4
685 vchRet.push_back((left<<2) | (dec>>4));
690 case 2: // we have 4 bits and get 6, we keep 2
691 vchRet.push_back((left<<4) | (dec>>2));
696 case 3: // we have 2 bits and get 6
697 vchRet.push_back((left<<6) | dec);
706 case 0: // 4n base64 characters processed: ok
709 case 1: // 4n+1 base64 character processed: impossible
713 case 2: // 4n+2 base64 characters processed: require '=='
714 if (left || p[0] != '=' || p[1] != '=' || decode64_table[(unsigned char)p[2]] != -1)
718 case 3: // 4n+3 base64 characters processed: require '='
719 if (left || p[0] != '=' || decode64_table[(unsigned char)p[1]] != -1)
727 string DecodeBase64(const string& str)
729 vector<unsigned char> vchRet = DecodeBase64(str.c_str());
730 return string((const char*)&vchRet[0], vchRet.size());
733 string EncodeBase32(const unsigned char* pch, size_t len)
735 static const char *pbase32 = "abcdefghijklmnopqrstuvwxyz234567";
738 strRet.reserve((len+4)/5*8);
741 const unsigned char *pchEnd = pch+len;
748 case 0: // we have no bits
749 strRet += pbase32[enc >> 3];
750 left = (enc & 7) << 2;
754 case 1: // we have three bits
755 strRet += pbase32[left | (enc >> 6)];
756 strRet += pbase32[(enc >> 1) & 31];
757 left = (enc & 1) << 4;
761 case 2: // we have one bit
762 strRet += pbase32[left | (enc >> 4)];
763 left = (enc & 15) << 1;
767 case 3: // we have four bits
768 strRet += pbase32[left | (enc >> 7)];
769 strRet += pbase32[(enc >> 2) & 31];
770 left = (enc & 3) << 3;
774 case 4: // we have two bits
775 strRet += pbase32[left | (enc >> 5)];
776 strRet += pbase32[enc & 31];
781 static const int nPadding[5] = {0, 6, 4, 3, 1};
784 strRet += pbase32[left];
785 for (int n=0; n<nPadding[mode]; n++)
792 string EncodeBase32(const string& str)
794 return EncodeBase32((const unsigned char*)str.c_str(), str.size());
797 vector<unsigned char> DecodeBase32(const char* p, bool* pfInvalid)
799 static const int decode32_table[256] =
801 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
802 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
803 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 26, 27, 28, 29, 30, 31, -1, -1, -1, -1,
804 -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
805 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, -1, 0, 1, 2,
806 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22,
807 23, 24, 25, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
808 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
809 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
810 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
811 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
812 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
813 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
819 vector<unsigned char> vchRet;
820 vchRet.reserve((strlen(p))*5/8);
827 int dec = decode32_table[(unsigned char)*p];
828 if (dec == -1) break;
832 case 0: // we have no bits and get 5
837 case 1: // we have 5 bits and keep 2
838 vchRet.push_back((left<<3) | (dec>>2));
843 case 2: // we have 2 bits and keep 7
844 left = left << 5 | dec;
848 case 3: // we have 7 bits and keep 4
849 vchRet.push_back((left<<1) | (dec>>4));
854 case 4: // we have 4 bits, and keep 1
855 vchRet.push_back((left<<4) | (dec>>1));
860 case 5: // we have 1 bit, and keep 6
861 left = left << 5 | dec;
865 case 6: // we have 6 bits, and keep 3
866 vchRet.push_back((left<<2) | (dec>>3));
871 case 7: // we have 3 bits, and keep 0
872 vchRet.push_back((left<<5) | dec);
881 case 0: // 8n base32 characters processed: ok
884 case 1: // 8n+1 base32 characters processed: impossible
890 case 2: // 8n+2 base32 characters processed: require '======'
891 if (left || p[0] != '=' || p[1] != '=' || p[2] != '=' || p[3] != '=' || p[4] != '=' || p[5] != '=' || decode32_table[(unsigned char)p[6]] != -1)
895 case 4: // 8n+4 base32 characters processed: require '===='
896 if (left || p[0] != '=' || p[1] != '=' || p[2] != '=' || p[3] != '=' || decode32_table[(unsigned char)p[4]] != -1)
900 case 5: // 8n+5 base32 characters processed: require '==='
901 if (left || p[0] != '=' || p[1] != '=' || p[2] != '=' || decode32_table[(unsigned char)p[3]] != -1)
905 case 7: // 8n+7 base32 characters processed: require '='
906 if (left || p[0] != '=' || decode32_table[(unsigned char)p[1]] != -1)
914 string DecodeBase32(const string& str)
916 vector<unsigned char> vchRet = DecodeBase32(str.c_str());
917 return string((const char*)&vchRet[0], vchRet.size());
921 int64_t DecodeDumpTime(const std::string& s)
925 for(size_t i=0; i<formats_n; ++i)
927 std::istringstream is(s);
928 is.imbue(formats[i]);
930 if(pt != bt::ptime()) break;
933 return pt_to_time_t(pt);
936 std::string EncodeDumpTime(int64_t nTime) {
937 return DateTimeStrFormat("%Y-%m-%dT%H:%M:%SZ", nTime);
940 std::string EncodeDumpString(const std::string &str) {
941 std::stringstream ret;
942 for (unsigned char c : str) {
943 if (c <= 32 || c >= 128 || c == '%') {
944 ret << '%' << HexStr(&c, &c + 1);
952 std::string DecodeDumpString(const std::string &str) {
953 std::stringstream ret;
954 for (unsigned int pos = 0; pos < str.length(); pos++) {
955 unsigned char c = str[pos];
956 if (c == '%' && pos+2 < str.length()) {
957 c = (((str[pos+1]>>6)*9+((str[pos+1]-'0')&15)) << 4) |
958 ((str[pos+2]>>6)*9+((str[pos+2]-'0')&15));
966 bool WildcardMatch(const char* psz, const char* mask)
973 return (*psz == '\0');
975 return WildcardMatch(psz, mask+1) || (*psz && WildcardMatch(psz+1, mask));
990 bool WildcardMatch(const string& str, const string& mask)
992 return WildcardMatch(str.c_str(), mask.c_str());
1002 static std::string FormatException(std::exception* pex, const char* pszThread)
1005 char pszModule[MAX_PATH] = "";
1006 GetModuleFileNameA(NULL, pszModule, sizeof(pszModule));
1008 const char* pszModule = "novacoin";
1012 "EXCEPTION: %s \n%s \n%s in %s \n", typeid(*pex).name(), pex->what(), pszModule, pszThread);
1015 "UNKNOWN EXCEPTION \n%s in %s \n", pszModule, pszThread);
1018 void LogException(std::exception* pex, const char* pszThread)
1020 std::string message = FormatException(pex, pszThread);
1021 printf("\n%s", message.c_str());
1024 void PrintException(std::exception* pex, const char* pszThread)
1026 std::string message = FormatException(pex, pszThread);
1027 printf("\n\n************************\n%s\n", message.c_str());
1028 fprintf(stderr, "\n\n************************\n%s\n", message.c_str());
1029 strMiscWarning = message;
1033 void LogStackTrace() {
1034 printf("\n\n******* exception encountered *******\n");
1037 #if !defined(WIN32) && !defined(ANDROID)
1038 void* pszBuffer[32];
1040 size = backtrace(pszBuffer, 32);
1041 backtrace_symbols_fd(pszBuffer, size, fileno(fileout));
1046 void PrintExceptionContinue(std::exception* pex, const char* pszThread)
1048 std::string message = FormatException(pex, pszThread);
1049 printf("\n\n************************\n%s\n", message.c_str());
1050 fprintf(stderr, "\n\n************************\n%s\n", message.c_str());
1051 strMiscWarning = message;
1054 boost::filesystem::path GetDefaultDataDir()
1056 namespace fs = boost::filesystem;
1057 // Windows < Vista: C:\Documents and Settings\Username\Application Data\NovaCoin
1058 // Windows >= Vista: C:\Users\Username\AppData\Roaming\NovaCoin
1059 // Mac: ~/Library/Application Support/NovaCoin
1060 // Unix: ~/.novacoin
1063 return GetSpecialFolderPath(CSIDL_APPDATA) / "NovaCoin";
1066 char* pszHome = getenv("HOME");
1067 if (pszHome == NULL || strlen(pszHome) == 0)
1068 pathRet = fs::path("/");
1070 pathRet = fs::path(pszHome);
1073 pathRet /= "Library/Application Support";
1074 fs::create_directory(pathRet);
1075 return pathRet / "NovaCoin";
1078 return pathRet / ".novacoin";
1083 const boost::filesystem::path &GetDataDir(bool fNetSpecific)
1085 namespace fs = boost::filesystem;
1087 static fs::path pathCached[2];
1088 static CCriticalSection csPathCached;
1089 static bool cachedPath[2] = {false, false};
1091 fs::path &path = pathCached[fNetSpecific];
1093 // This can be called during exceptions by printf, so we cache the
1094 // value so we don't have to do memory allocations after that.
1095 if (cachedPath[fNetSpecific])
1100 if (mapArgs.count("-datadir")) {
1101 path = fs::system_complete(mapArgs["-datadir"]);
1102 if (!fs::is_directory(path)) {
1107 path = GetDefaultDataDir();
1109 if (fNetSpecific && GetBoolArg("-testnet", false))
1112 fs::create_directory(path);
1114 cachedPath[fNetSpecific]=true;
1118 string randomStrGen(int length) {
1119 static string charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
1121 result.resize(length);
1122 for (int32_t i = 0; i < length; i++)
1123 result[i] = charset[rand() % charset.length()];
1130 srand(static_cast<unsigned int>(time(NULL)));
1133 #if BOOST_FILESYSTEM_VERSION >= 3
1134 pConf.open(GetConfigFile().generic_string().c_str());
1136 pConf.open(GetConfigFile().string().c_str());
1138 pConf << "rpcuser=user\nrpcpassword="
1141 + "\n#(0=off, 1=on) daemon - run in the background as a daemon and accept commands"
1143 + "\n#(0=off, 1=on) server - accept command line and JSON-RPC commands"
1145 + "\nrpcallowip=127.0.0.1";
1149 boost::filesystem::path GetConfigFile()
1151 boost::filesystem::path pathConfigFile(GetArg("-conf", "novacoin.conf"));
1152 if (!pathConfigFile.is_complete()) pathConfigFile = GetDataDir(false) / pathConfigFile;
1153 return pathConfigFile;
1156 void ReadConfigFile(map<string, string>& mapSettingsRet,
1157 map<string, vector<string> >& mapMultiSettingsRet)
1159 boost::filesystem::ifstream streamConfig(GetConfigFile());
1160 if (!streamConfig.good())
1163 new(&streamConfig) boost::filesystem::ifstream(GetConfigFile());
1164 if(!streamConfig.good())
1168 set<string> setOptions;
1169 setOptions.insert("*");
1171 for (boost::program_options::detail::config_file_iterator it(streamConfig, setOptions), end; it != end; ++it)
1173 // Don't overwrite existing settings so command line settings override bitcoin.conf
1174 string strKey = string("-") + it->string_key;
1175 if (mapSettingsRet.count(strKey) == 0)
1177 mapSettingsRet[strKey] = it->value[0];
1178 // interpret nofoo=1 as foo=0 (and nofoo=0 as foo=1) as long as foo not set)
1179 InterpretNegativeSetting(strKey, mapSettingsRet);
1181 mapMultiSettingsRet[strKey].push_back(it->value[0]);
1185 boost::filesystem::path GetPidFile()
1187 boost::filesystem::path pathPidFile(GetArg("-pid", "novacoind.pid"));
1188 if (!pathPidFile.is_complete()) pathPidFile = GetDataDir() / pathPidFile;
1193 void CreatePidFile(const boost::filesystem::path &path, pid_t pid)
1195 FILE* file = fopen(path.string().c_str(), "w");
1198 fprintf(file, "%d\n", pid);
1204 bool RenameOver(boost::filesystem::path src, boost::filesystem::path dest)
1207 return MoveFileExA(src.string().c_str(), dest.string().c_str(),
1208 MOVEFILE_REPLACE_EXISTING) != 0;
1210 int rc = std::rename(src.string().c_str(), dest.string().c_str());
1215 void FileCommit(FILE *fileout)
1217 fflush(fileout); // harmless if redundantly called
1219 _commit(_fileno(fileout));
1221 fsync(fileno(fileout));
1225 int GetFilesize(FILE* file)
1227 int nSavePos = ftell(file);
1229 if (fseek(file, 0, SEEK_END) == 0)
1230 nFilesize = ftell(file);
1231 fseek(file, nSavePos, SEEK_SET);
1235 void ShrinkDebugFile()
1237 // Scroll debug.log if it's getting too big
1238 boost::filesystem::path pathLog = GetDataDir() / "debug.log";
1239 FILE* file = fopen(pathLog.string().c_str(), "r");
1240 if (file && GetFilesize(file) > 10 * 1000000)
1242 // Restart the file with some of the end
1244 vector<char>* vBuf = new vector <char>(200000, 0);
1245 fseek(file, -((long)(vBuf->size())), SEEK_END);
1246 size_t nBytes = fread(&vBuf->operator[](0), 1, vBuf->size(), file);
1248 file = fopen(pathLog.string().c_str(), "w");
1251 fwrite(&vBuf->operator[](0), 1, nBytes, file);
1256 catch (const bad_alloc& e) {
1257 // Bad things happen - no free memory in heap at program startup
1259 printf("Warning: %s in %s:%d\n ShrinkDebugFile failed - debug.log expands further", e.what(), __FILE__, __LINE__);
1272 // "Never go to sea with two chronometers; take one or three."
1273 // Our three time sources are:
1275 // - Median of other nodes clocks
1276 // - The user (asking the user to fix the system clock if the first two disagree)
1282 int64_t now = time(NULL);
1287 // Trusted NTP offset or median of NTP samples.
1288 extern int64_t nNtpOffset;
1290 // Median of time samples given by other nodes.
1291 static int64_t nNodesOffset = INT64_MAX;
1293 // Select time offset:
1294 int64_t GetTimeOffset()
1296 // If NTP and system clock are in agreement within 40 minutes, then use NTP.
1297 if (abs64(nNtpOffset) < 40 * 60)
1300 // If not, then choose between median peer time and system clock.
1301 if (abs64(nNodesOffset) < 70 * 60)
1302 return nNodesOffset;
1307 int64_t GetNodesOffset()
1309 return nNodesOffset;
1312 int64_t GetAdjustedTime()
1314 return GetTime() + GetTimeOffset();
1317 void AddTimeData(const CNetAddr& ip, int64_t nTime)
1319 int64_t nOffsetSample = nTime - GetTime();
1321 // Ignore duplicates
1322 static set<CNetAddr> setKnown;
1323 if (!setKnown.insert(ip).second)
1327 vTimeOffsets.input(nOffsetSample);
1328 printf("Added time data, samples %d, offset %+" PRId64 " (%+" PRId64 " minutes)\n", vTimeOffsets.size(), nOffsetSample, nOffsetSample/60);
1329 if (vTimeOffsets.size() >= 5 && vTimeOffsets.size() % 2 == 1)
1331 int64_t nMedian = vTimeOffsets.median();
1332 std::vector<int64_t> vSorted = vTimeOffsets.sorted();
1333 // Only let other nodes change our time by so much
1334 if (abs64(nMedian) < 70 * 60)
1336 nNodesOffset = nMedian;
1340 nNodesOffset = INT64_MAX;
1345 bool fMatch = false;
1347 // If nobody has a time different than ours but within 5 minutes of ours, give a warning
1348 for (int64_t nOffset : vSorted)
1349 if (nOffset != 0 && abs64(nOffset) < 5 * 60)
1355 string strMessage = _("Warning: Please check that your computer's date and time are correct! If your clock is wrong NovaCoin will not work properly.");
1356 strMiscWarning = strMessage;
1357 printf("*** %s\n", strMessage.c_str());
1358 uiInterface.ThreadSafeMessageBox(strMessage+" ", string("NovaCoin"), CClientUIInterface::OK | CClientUIInterface::ICON_EXCLAMATION);
1363 for (int64_t n : vSorted)
1364 printf("%+" PRId64 " ", n);
1367 if (nNodesOffset != INT64_MAX)
1368 printf("nNodesOffset = %+" PRId64 " (%+" PRId64 " minutes)\n", nNodesOffset, nNodesOffset/60);
1372 string FormatVersion(int nVersion)
1374 if (nVersion%100 == 0)
1375 return strprintf("%d.%d.%d", nVersion/1000000, (nVersion/10000)%100, (nVersion/100)%100);
1377 return strprintf("%d.%d.%d.%d", nVersion/1000000, (nVersion/10000)%100, (nVersion/100)%100, nVersion%100);
1380 string FormatFullVersion()
1382 return CLIENT_BUILD;
1385 // Format the subversion field according to BIP 14 spec (https://en.bitcoin.it/wiki/BIP_0014)
1386 std::string FormatSubVersion(const std::string& name, int nClientVersion, const std::vector<std::string>& comments)
1388 std::ostringstream ss;
1390 ss << name << ":" << FormatVersion(nClientVersion);
1391 if (!comments.empty())
1392 ss << "(" << boost::algorithm::join(comments, "; ") << ")";
1398 boost::filesystem::path GetSpecialFolderPath(int nFolder, bool fCreate)
1400 namespace fs = boost::filesystem;
1402 char pszPath[MAX_PATH] = "";
1404 if(SHGetSpecialFolderPathA(NULL, pszPath, nFolder, fCreate))
1406 return fs::path(pszPath);
1409 printf("SHGetSpecialFolderPathA() failed, could not obtain requested path.\n");
1410 return fs::path("");
1414 void runCommand(std::string strCommand)
1416 int nErr = ::system(strCommand.c_str());
1418 printf("runCommand error: system(%s) returned %d\n", strCommand.c_str(), nErr);
1421 void RenameThread(const char* name)
1423 #if defined(PR_SET_NAME)
1424 // Only the first 15 characters are used (16 - NUL terminator)
1425 ::prctl(PR_SET_NAME, name, 0, 0, 0);
1426 #elif (defined(__FreeBSD__) || defined(__OpenBSD__))
1427 pthread_set_name_np(pthread_self(), name);
1428 #elif defined(__APPLE__)
1429 pthread_setname_np(name);
1431 // Prevent warnings for unused parameters...
1436 bool NewThread(void(*pfn)(void*), void* parg)
1440 boost::thread(pfn, parg); // thread detaches when out of scope
1441 } catch(boost::thread_resource_error &e) {
1442 printf("Error creating thread: %s\n", e.what());
1448 std::string DateTimeStrFormat(const char* pszFormat, int64_t nTime)
1450 // std::locale takes ownership of the pointer
1451 std::locale loc(std::locale::classic(), new boost::posix_time::time_facet(pszFormat));
1452 std::stringstream ss;
1454 ss << boost::posix_time::from_time_t(nTime);