Hush Full Node software. We were censored from Github, this is where all development happens now.
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615 lines
16 KiB
615 lines
16 KiB
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Distributed under the MIT/X11 software license, see the accompanying
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// file license.txt or http://www.opensource.org/licenses/mit-license.php.
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#include "headers.h"
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map<string, string> mapArgs;
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map<string, vector<string> > mapMultiArgs;
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bool fDebug = false;
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bool fPrintToConsole = false;
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bool fPrintToDebugger = false;
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char pszSetDataDir[MAX_PATH] = "";
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bool fShutdown = false;
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bool fDaemon = false;
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// Init openssl library multithreading support
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static wxMutex** ppmutexOpenSSL;
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void locking_callback(int mode, int i, const char* file, int line)
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{
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if (mode & CRYPTO_LOCK)
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ppmutexOpenSSL[i]->Lock();
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else
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ppmutexOpenSSL[i]->Unlock();
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}
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// Init
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class CInit
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{
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public:
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CInit()
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{
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// Init openssl library multithreading support
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ppmutexOpenSSL = (wxMutex**)OPENSSL_malloc(CRYPTO_num_locks() * sizeof(wxMutex*));
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for (int i = 0; i < CRYPTO_num_locks(); i++)
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ppmutexOpenSSL[i] = new wxMutex();
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CRYPTO_set_locking_callback(locking_callback);
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#ifdef __WXMSW__
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// Seed random number generator with screen scrape and other hardware sources
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RAND_screen();
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#endif
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// Seed random number generator with performance counter
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RandAddSeed();
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}
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~CInit()
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{
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// Shutdown openssl library multithreading support
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CRYPTO_set_locking_callback(NULL);
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for (int i = 0; i < CRYPTO_num_locks(); i++)
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delete ppmutexOpenSSL[i];
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OPENSSL_free(ppmutexOpenSSL);
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}
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}
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instance_of_cinit;
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void RandAddSeed()
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{
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// Seed with CPU performance counter
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int64 nCounter = PerformanceCounter();
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RAND_add(&nCounter, sizeof(nCounter), 1.5);
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memset(&nCounter, 0, sizeof(nCounter));
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}
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void RandAddSeedPerfmon()
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{
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RandAddSeed();
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// This can take up to 2 seconds, so only do it every 10 minutes
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static int64 nLastPerfmon;
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if (GetTime() < nLastPerfmon + 10 * 60)
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return;
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nLastPerfmon = GetTime();
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#ifdef __WXMSW__
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// Don't need this on Linux, OpenSSL automatically uses /dev/urandom
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// Seed with the entire set of perfmon data
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unsigned char pdata[250000];
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memset(pdata, 0, sizeof(pdata));
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unsigned long nSize = sizeof(pdata);
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long ret = RegQueryValueEx(HKEY_PERFORMANCE_DATA, "Global", NULL, NULL, pdata, &nSize);
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RegCloseKey(HKEY_PERFORMANCE_DATA);
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if (ret == ERROR_SUCCESS)
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{
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uint256 hash;
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SHA256(pdata, nSize, (unsigned char*)&hash);
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RAND_add(&hash, sizeof(hash), min(nSize/500.0, (double)sizeof(hash)));
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hash = 0;
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memset(pdata, 0, nSize);
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printf("%s RandAddSeed() %d bytes\n", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str(), nSize);
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}
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#else
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printf("%s RandAddSeed()\n", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());
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#endif
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}
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uint64 GetRand(uint64 nMax)
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{
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if (nMax == 0)
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return 0;
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// The range of the random source must be a multiple of the modulus
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// to give every possible output value an equal possibility
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uint64 nRange = (UINT64_MAX / nMax) * nMax;
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uint64 nRand = 0;
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do
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RAND_bytes((unsigned char*)&nRand, sizeof(nRand));
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while (nRand >= nRange);
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return (nRand % nMax);
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}
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inline int OutputDebugStringF(const char* pszFormat, ...)
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{
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int ret = 0;
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if (fPrintToConsole || wxTheApp == NULL)
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{
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// print to console
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va_list arg_ptr;
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va_start(arg_ptr, pszFormat);
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ret = vprintf(pszFormat, arg_ptr);
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va_end(arg_ptr);
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}
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else
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{
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// print to debug.log
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char pszFile[MAX_PATH+100];
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GetDataDir(pszFile);
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strlcat(pszFile, "/debug.log", sizeof(pszFile));
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FILE* fileout = fopen(pszFile, "a");
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if (fileout)
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{
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//// Debug print useful for profiling
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//fprintf(fileout, " %"PRI64d" ", wxGetLocalTimeMillis().GetValue());
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va_list arg_ptr;
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va_start(arg_ptr, pszFormat);
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ret = vfprintf(fileout, pszFormat, arg_ptr);
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va_end(arg_ptr);
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fclose(fileout);
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}
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}
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#ifdef __WXMSW__
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if (fPrintToDebugger)
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{
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// accumulate a line at a time
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static CCriticalSection cs_OutputDebugStringF;
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CRITICAL_BLOCK(cs_OutputDebugStringF)
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{
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static char pszBuffer[50000];
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static char* pend;
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if (pend == NULL)
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pend = pszBuffer;
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va_list arg_ptr;
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va_start(arg_ptr, pszFormat);
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int limit = END(pszBuffer) - pend - 2;
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int ret = _vsnprintf(pend, limit, pszFormat, arg_ptr);
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va_end(arg_ptr);
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if (ret < 0 || ret >= limit)
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{
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pend = END(pszBuffer) - 2;
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*pend++ = '\n';
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}
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else
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pend += ret;
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*pend = '\0';
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char* p1 = pszBuffer;
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char* p2;
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while (p2 = strchr(p1, '\n'))
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{
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p2++;
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char c = *p2;
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*p2 = '\0';
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OutputDebugString(p1);
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*p2 = c;
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p1 = p2;
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}
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if (p1 != pszBuffer)
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memmove(pszBuffer, p1, pend - p1 + 1);
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pend -= (p1 - pszBuffer);
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}
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}
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#endif
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return ret;
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}
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// Safer snprintf
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// - prints up to limit-1 characters
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// - output string is always null terminated even if limit reached
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// - return value is the number of characters actually printed
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int my_snprintf(char* buffer, size_t limit, const char* format, ...)
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{
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if (limit == 0)
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return 0;
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va_list arg_ptr;
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va_start(arg_ptr, format);
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int ret = _vsnprintf(buffer, limit, format, arg_ptr);
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va_end(arg_ptr);
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if (ret < 0 || ret >= limit)
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{
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ret = limit - 1;
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buffer[limit-1] = 0;
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}
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return ret;
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}
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string strprintf(const char* format, ...)
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{
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char buffer[50000];
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char* p = buffer;
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int limit = sizeof(buffer);
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int ret;
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loop
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{
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va_list arg_ptr;
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va_start(arg_ptr, format);
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ret = _vsnprintf(p, limit, format, arg_ptr);
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va_end(arg_ptr);
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if (ret >= 0 && ret < limit)
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break;
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if (p != buffer)
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delete p;
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limit *= 2;
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p = new char[limit];
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if (p == NULL)
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throw std::bad_alloc();
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}
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#ifdef _MSC_VER
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// msvc optimisation
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if (p == buffer)
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return string(p, p+ret);
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#endif
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string str(p, p+ret);
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if (p != buffer)
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delete p;
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return str;
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}
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bool error(const char* format, ...)
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{
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char buffer[50000];
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int limit = sizeof(buffer);
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va_list arg_ptr;
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va_start(arg_ptr, format);
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int ret = _vsnprintf(buffer, limit, format, arg_ptr);
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va_end(arg_ptr);
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if (ret < 0 || ret >= limit)
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{
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ret = limit - 1;
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buffer[limit-1] = 0;
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}
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printf("ERROR: %s\n", buffer);
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return false;
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}
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void ParseString(const string& str, char c, vector<string>& v)
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{
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unsigned int i1 = 0;
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unsigned int i2;
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do
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{
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i2 = str.find(c, i1);
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v.push_back(str.substr(i1, i2-i1));
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i1 = i2+1;
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}
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while (i2 != str.npos);
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}
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string FormatMoney(int64 n, bool fPlus)
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{
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n /= CENT;
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string str = strprintf("%"PRI64d".%02"PRI64d, (n > 0 ? n : -n)/100, (n > 0 ? n : -n)%100);
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for (int i = 6; i < str.size(); i += 4)
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if (isdigit(str[str.size() - i - 1]))
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str.insert(str.size() - i, 1, ',');
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if (n < 0)
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str.insert((unsigned int)0, 1, '-');
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else if (fPlus && n > 0)
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str.insert((unsigned int)0, 1, '+');
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return str;
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}
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bool ParseMoney(const char* pszIn, int64& nRet)
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{
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string strWhole;
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int64 nCents = 0;
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const char* p = pszIn;
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while (isspace(*p))
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p++;
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for (; *p; p++)
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{
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if (*p == ',' && p > pszIn && isdigit(p[-1]) && isdigit(p[1]) && isdigit(p[2]) && isdigit(p[3]) && !isdigit(p[4]))
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continue;
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if (*p == '.')
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{
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p++;
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if (isdigit(*p))
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{
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nCents = 10 * (*p++ - '0');
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if (isdigit(*p))
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nCents += (*p++ - '0');
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}
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break;
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}
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if (isspace(*p))
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break;
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if (!isdigit(*p))
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return false;
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strWhole.insert(strWhole.end(), *p);
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}
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for (; *p; p++)
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if (!isspace(*p))
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return false;
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if (strWhole.size() > 14)
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return false;
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if (nCents < 0 || nCents > 99)
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return false;
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int64 nWhole = atoi64(strWhole);
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int64 nPreValue = nWhole * 100 + nCents;
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int64 nValue = nPreValue * CENT;
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if (nValue / CENT != nPreValue)
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return false;
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if (nValue / COIN != nWhole)
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return false;
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nRet = nValue;
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return true;
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}
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vector<unsigned char> ParseHex(const char* psz)
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{
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vector<unsigned char> vch;
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while (isspace(*psz))
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psz++;
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vch.reserve((strlen(psz)+1)/3);
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static char phexdigit[256] =
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{ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
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0,1,2,3,4,5,6,7,8,9,-1,-1,-1,-1,-1,-1,
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-1,0xa,0xb,0xc,0xd,0xe,0xf,-1,-1,-1,-1,-1,-1,-1,-1,-1,
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
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-1,0xa,0xb,0xc,0xd,0xe,0xf,-1,-1,-1,-1,-1,-1,-1,-1,-1
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
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-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, };
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while (*psz)
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{
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char c = phexdigit[(unsigned char)*psz++];
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if (c == -1)
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break;
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unsigned char n = (c << 4);
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if (*psz)
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{
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char c = phexdigit[(unsigned char)*psz++];
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if (c == -1)
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break;
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n |= c;
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vch.push_back(n);
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}
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while (isspace(*psz))
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psz++;
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}
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return vch;
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}
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vector<unsigned char> ParseHex(const std::string& str)
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{
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return ParseHex(str.c_str());
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}
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void ParseParameters(int argc, char* argv[])
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{
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mapArgs.clear();
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mapMultiArgs.clear();
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for (int i = 0; i < argc; i++)
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{
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char psz[10000];
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strlcpy(psz, argv[i], sizeof(psz));
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char* pszValue = (char*)"";
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if (strchr(psz, '='))
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{
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pszValue = strchr(psz, '=');
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*pszValue++ = '\0';
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}
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#ifdef __WXMSW__
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_strlwr(psz);
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if (psz[0] == '/')
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psz[0] = '-';
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#endif
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mapArgs[psz] = pszValue;
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mapMultiArgs[psz].push_back(pszValue);
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}
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}
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void FormatException(char* pszMessage, std::exception* pex, const char* pszThread)
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{
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#ifdef __WXMSW__
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char pszModule[MAX_PATH];
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pszModule[0] = '\0';
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GetModuleFileName(NULL, pszModule, sizeof(pszModule));
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#else
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// might not be thread safe, uses wxString
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//const char* pszModule = wxStandardPaths::Get().GetExecutablePath().mb_str();
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const char* pszModule = "bitcoin";
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#endif
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if (pex)
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snprintf(pszMessage, 1000,
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"EXCEPTION: %s \n%s \n%s in %s \n", typeid(*pex).name(), pex->what(), pszModule, pszThread);
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else
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snprintf(pszMessage, 1000,
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"UNKNOWN EXCEPTION \n%s in %s \n", pszModule, pszThread);
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}
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void LogException(std::exception* pex, const char* pszThread)
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{
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char pszMessage[1000];
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FormatException(pszMessage, pex, pszThread);
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printf("\n%s", pszMessage);
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}
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void PrintException(std::exception* pex, const char* pszThread)
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{
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char pszMessage[1000];
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FormatException(pszMessage, pex, pszThread);
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printf("\n\n************************\n%s\n", pszMessage);
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if (wxTheApp)
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wxMessageBox(pszMessage, "Error", wxOK | wxICON_ERROR);
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throw;
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//DebugBreak();
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}
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void GetDataDir(char* pszDir)
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{
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// pszDir must be at least MAX_PATH length.
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if (pszSetDataDir[0] != 0)
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{
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strlcpy(pszDir, pszSetDataDir, MAX_PATH);
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static bool fMkdirDone;
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if (!fMkdirDone)
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{
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fMkdirDone = true;
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_mkdir(pszDir);
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}
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}
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else
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{
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// This can be called during exceptions by printf, so we cache the
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// value so we don't have to do memory allocations after that.
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// wxStandardPaths::GetUserDataDir
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// Return the directory for the user-dependent application data files:
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// Unix: ~/.appname
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// Windows: C:\Documents and Settings\username\Application Data\appname
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// Mac: ~/Library/Application Support/appname
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static char pszCachedDir[MAX_PATH];
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if (pszCachedDir[0] == 0)
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{
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strlcpy(pszCachedDir, wxStandardPaths::Get().GetUserDataDir().c_str(), sizeof(pszCachedDir));
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_mkdir(pszCachedDir);
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}
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strlcpy(pszDir, pszCachedDir, MAX_PATH);
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}
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}
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string GetDataDir()
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{
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char pszDir[MAX_PATH];
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GetDataDir(pszDir);
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return pszDir;
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}
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int GetFilesize(FILE* file)
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{
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int nSavePos = ftell(file);
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int nFilesize = -1;
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if (fseek(file, 0, SEEK_END) == 0)
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nFilesize = ftell(file);
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fseek(file, nSavePos, SEEK_SET);
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return nFilesize;
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}
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void ShrinkDebugFile()
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{
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// Scroll debug.log if it's getting too big
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string strFile = GetDataDir() + "/debug.log";
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FILE* file = fopen(strFile.c_str(), "r");
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if (file && GetFilesize(file) > 10 * 1000000)
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{
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// Restart the file with some of the end
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char pch[200000];
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fseek(file, -sizeof(pch), SEEK_END);
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int nBytes = fread(pch, 1, sizeof(pch), file);
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|
fclose(file);
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|
if (file = fopen(strFile.c_str(), "w"))
|
|
{
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|
fwrite(pch, 1, nBytes, file);
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|
fclose(file);
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|
}
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|
}
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|
}
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//
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|
// "Never go to sea with two chronometers; take one or three."
|
|
// Our three chronometers are:
|
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// - System clock
|
|
// - Median of other server's clocks
|
|
// - NTP servers
|
|
//
|
|
// note: NTP isn't implemented yet, so until then we just use the median
|
|
// of other nodes clocks to correct ours.
|
|
//
|
|
int64 GetTime()
|
|
{
|
|
return time(NULL);
|
|
}
|
|
|
|
static int64 nTimeOffset = 0;
|
|
|
|
int64 GetAdjustedTime()
|
|
{
|
|
return GetTime() + nTimeOffset;
|
|
}
|
|
|
|
void AddTimeData(unsigned int ip, int64 nTime)
|
|
{
|
|
int64 nOffsetSample = nTime - GetTime();
|
|
|
|
// Ignore duplicates
|
|
static set<unsigned int> setKnown;
|
|
if (!setKnown.insert(ip).second)
|
|
return;
|
|
|
|
// Add data
|
|
static vector<int64> vTimeOffsets;
|
|
if (vTimeOffsets.empty())
|
|
vTimeOffsets.push_back(0);
|
|
vTimeOffsets.push_back(nOffsetSample);
|
|
printf("Added time data, samples %d, offset %+"PRI64d" (%+"PRI64d" minutes)\n", vTimeOffsets.size(), vTimeOffsets.back(), vTimeOffsets.back()/60);
|
|
if (vTimeOffsets.size() >= 5 && vTimeOffsets.size() % 2 == 1)
|
|
{
|
|
sort(vTimeOffsets.begin(), vTimeOffsets.end());
|
|
int64 nMedian = vTimeOffsets[vTimeOffsets.size()/2];
|
|
nTimeOffset = nMedian;
|
|
if ((nMedian > 0 ? nMedian : -nMedian) > 5 * 60)
|
|
{
|
|
// Only let other nodes change our clock so far before we
|
|
// go to the NTP servers
|
|
/// todo: Get time from NTP servers, then set a flag
|
|
/// to make sure it doesn't get changed again
|
|
}
|
|
foreach(int64 n, vTimeOffsets)
|
|
printf("%+"PRI64d" ", n);
|
|
printf("| nTimeOffset = %+"PRI64d" (%+"PRI64d" minutes)\n", nTimeOffset, nTimeOffset/60);
|
|
}
|
|
}
|
|
|