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//Download by http://www.NewXing.com /* * Copyright (C) 2001-2003 Jacek Sieka, j_s@telia.com * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "stdinc.h" #include "DCPlusPlus.h" #include "SettingsManager.h" #include "Util.h" #ifndef WIN32 #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #include <netdb.h> #include <sys/utsname.h> #endif string Util::emptyString; bool Util::away = false; string Util::awayMsg; time_t Util::awayTime; char Util::upper[256]; char Util::lower[256]; int8_t Util::cmp[256][256]; int8_t Util::cmpi[256][256]; /* CRC table for SFV files, ripped from pdSFV 1.2 */ u_int32_t Util::crcTable[] = { 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba , 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3 , 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988 , 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91 , 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de , 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7 , 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec , 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5 , 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172 , 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b , 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940 , 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59 , 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116 , 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f , 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924 , 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d , 0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a , 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433 , 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818 , 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01 , 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e , 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457 , 0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c , 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65 , 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2 , 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb , 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0 , 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9 , 0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086 , 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f , 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4 , 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad , 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a , 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683 , 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8 , 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1 , 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe , 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7 , 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc , 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5 , 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252 , 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b , 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60 , 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79 , 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236 , 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f , 0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04 , 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d , 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a , 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713 , 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38 , 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21 , 0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e , 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777 , 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c , 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45 , 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2 , 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db , 0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0 , 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9 , 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6 , 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf , 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94 , 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d }; static void sgenrand(unsigned long seed); void Util::initialize() { int i; for(i = 0; i < 256; ++i) { #ifdef WIN32 upper[i] = (char)CharUpper((LPSTR)i); lower[i] = (char)CharLower((LPSTR)i); #else upper[i] = (char)toupper(i); lower[i] = (char)tolower(i); #endif } // Now initialize the compare table to the current locale (hm...hopefully we // won't have strange problems because of this (users from different locales for instance) for(i = 0; i < 256; ++i) { for(int j = 0; j < 256; ++j) { cmp[i][j] = (int8_t)::strncmp((char*)&i, (char*)&j, 1); cmpi[i][j] = (int8_t)::strncmp((char*)&lower[i], (char*)&lower[j], 1); } } sgenrand(time(NULL)); } string Util::validateMessage(string tmp, bool reverse) { string::size_type i = 0; if(reverse) { while( (i = tmp.find("$", i)) != string::npos) { tmp.replace(i, 5, "$"); i++; } i = 0; while( (i = tmp.find("|", i)) != string::npos) { tmp.replace(i, 6, "|"); i++; } // Check all '<' and '|' after newlines... i = 0; while( (i = tmp.find('\n', i)) != string::npos) { if(i + 1 < tmp.length()) { if(tmp[i+1] == '[' || tmp[i+1] == '<') { tmp.insert(i+1, "- "); i += 2; } } i++; } } else { while( (i = tmp.find('$', i)) != string::npos) { tmp.replace(i, 1, "$"); i += 4; } i = 0; while( (i = tmp.find('|', i)) != string::npos) { tmp.replace(i, 1, "|"); i += 4; } } return tmp; } static const char badChars[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, '<', '>', '/', '"', '|', '?', '*', 0 }; /** * Replaces all strange characters in a file with '_' * @todo Check for invalid names such as nul and aux... */ string Util::filterFileName(const string& aFile) { if(aFile.empty()) return aFile; string tmp = aFile; string::size_type i; // First, eliminate forbidden chars i=0; while( (i = tmp.find_first_of(badChars, i)) != string::npos) { tmp[i] = '_'; } i = tmp.length() - 1; // Then, eliminate all ':' that are not the second letter ("c:\...") while(true) { i = tmp.rfind(':', i); if(i == 1 || i == string::npos) break; tmp[i] = '_'; } return tmp; } /** * Decodes a URL the best it can... * Default ports: * http:// -> port 80 * dchub:// -> port 411 */ void Util::decodeUrl(const string& url, string& aServer, short& aPort, string& aFile) { // First, check for a protocol: xxxx:// string::size_type i = 0, j, k; aServer = emptyString; aFile = emptyString; if( (j=url.find("://", i)) != string::npos) { // Protocol found string protocol = url.substr(0, j); i = j + 3; if(protocol == "http") { aPort = 80; } else if(protocol == "dchub") { aPort = 411; } } if( (j=url.find('/', i)) != string::npos) { // We have a filename... aFile = url.substr(j); } if( (k=url.find(':', i)) != string::npos) { // Port if(k < j) aPort = (short)Util::toInt(url.substr(k+1, j-k-1)); } else { k = j; } // Only the server should be left now... aServer = url.substr(i, k-i); } string Util::getAwayMessage() { return (formatTime(awayMsg.empty() ? SETTING(DEFAULT_AWAY_MESSAGE) : awayMsg, awayTime)) + " <DC++ v" VERSIONSTRING ">"; }; string Util::getLocalIp() { string tmp; char buf[256]; gethostname(buf, 255); hostent* he = gethostbyname(buf); if(he == NULL || he->h_addr_list[0] == 0) return Util::emptyString; sockaddr_in dest; int i = 0; // We take the first ip as default, but if we can find a better one, use it instead... memcpy(&(dest.sin_addr), he->h_addr_list[i++], he->h_length); tmp = inet_ntoa(dest.sin_addr); if( strncmp(tmp.c_str(), "192", 3) == 0 || strncmp(tmp.c_str(), "169", 3) == 0 || strncmp(tmp.c_str(), "127", 3) == 0 || strncmp(tmp.c_str(), "10", 2) == 0 ) { while(he->h_addr_list[i]) { memcpy(&(dest.sin_addr), he->h_addr_list[i], he->h_length); string tmp2 = inet_ntoa(dest.sin_addr); if( strncmp(tmp2.c_str(), "192", 3) != 0 && strncmp(tmp2.c_str(), "169", 3) != 0 && strncmp(tmp2.c_str(), "127", 3) != 0 && strncmp(tmp2.c_str(), "10", 2) != 0) { tmp = tmp2; } i++; } } return tmp; } /** * This function takes a string and a set of parameters and transforms them according to * a simple formatting rule, similar to strftime. In the message, every parameter should be * represented by %[name]. It will then be replaced by the corresponding item in * the params stringmap. After that, the string is passed through strftime with the current * date/time and then finally written to the log file. If the parameter is not present at all, * it is removed from the string completely... */ string Util::formatParams(const string& msg, StringMap& params) { string result = msg; string::size_type i, j, k; i = 0; while (( j = result.find("%[", i)) != string::npos) { if( (result.size() < j + 2) || ((k = result.find(']', j + 2)) == string::npos) ) { break; } string name = result.substr(j + 2, k - j - 2); StringMapIter smi = params.find(name); if(smi == params.end()) { result.erase(j, k-j + 1); i = j; } else { if(smi->second.find('%') != string::npos) { string tmp = smi->second; // replace all % in params with %% for strftime string::size_type m = 0; while(( m = tmp.find('%', m)) != string::npos) { tmp.replace(m, 1, "%%"); m+=2; } result.replace(j, k-j + 1, tmp); i = j + tmp.size(); } else { result.replace(j, k-j + 1, smi->second); i = j + smi->second.size(); } } } result = formatTime(result, time(NULL)); return result; } string Util::formatTime(const string &msg, const time_t tm) { int bufsize = msg.size() + 64; char* buf = new char[bufsize]; while(!strftime(buf, bufsize-1, msg.c_str(), localtime(&tm))) { delete buf; bufsize+=64; buf = new char[bufsize]; } string result = buf; delete buf; return result; } /* Below is a high-speed random number generator with much better granularity than the CRT one in msvc...(no, I didn't write it...see copyright) */ /* Copyright (C) 1997 Makoto Matsumoto and Takuji Nishimura. Any feedback is very welcome. For any question, comments, see http://www.math.keio.ac.jp/matumoto/emt.html or email matumoto@math.keio.ac.jp */ /* Period parameters */ #define N 624 #define M 397 #define MATRIX_A 0x9908b0df /* constant vector a */ #define UPPER_MASK 0x80000000 /* most significant w-r bits */ #define LOWER_MASK 0x7fffffff /* least significant r bits */ /* Tempering parameters */ #define TEMPERING_MASK_B 0x9d2c5680 #define TEMPERING_MASK_C 0xefc60000 #define TEMPERING_SHIFT_U(y) (y >> 11) #define TEMPERING_SHIFT_S(y) (y << 7) #define TEMPERING_SHIFT_T(y) (y << 15) #define TEMPERING_SHIFT_L(y) (y >> 18) static unsigned long mt[N]; /* the array for the state vector */ static int mti=N+1; /* mti==N+1 means mt[N] is not initialized */ /* initializing the array with a NONZERO seed */ static void sgenrand(unsigned long seed) { /* setting initial seeds to mt[N] using */ /* the generator Line 25 of Table 1 in */ /* [KNUTH 1981, The Art of Computer Programming */ /* Vol. 2 (2nd Ed.), pp102] */ mt[0]= seed & 0xffffffff; for (mti=1; mti<N; mti++) mt[mti] = (69069 * mt[mti-1]) & 0xffffffff; } u_int32_t Util::rand() { unsigned long y; static unsigned long mag01[2]={0x0, MATRIX_A}; /* mag01[x] = x * MATRIX_A for x=0,1 */ if (mti >= N) { /* generate N words at one time */ int kk; if (mti == N+1) /* if sgenrand() has not been called, */ sgenrand(4357); /* a default initial seed is used */ for (kk=0;kk<N-M;kk++) { y = (mt[kk]&UPPER_MASK)|(mt[kk+1]&LOWER_MASK); mt[kk] = mt[kk+M] ^ (y >> 1) ^ mag01[y & 0x1]; } for (;kk<N-1;kk++) { y = (mt[kk]&UPPER_MASK)|(mt[kk+1]&LOWER_MASK); mt[kk] = mt[kk+(M-N)] ^ (y >> 1) ^ mag01[y & 0x1]; } y = (mt[N-1]&UPPER_MASK)|(mt[0]&LOWER_MASK); mt[N-1] = mt[M-1] ^ (y >> 1) ^ mag01[y & 0x1]; mti = 0; } y = mt[mti++]; y ^= TEMPERING_SHIFT_U(y); y ^= TEMPERING_SHIFT_S(y) & TEMPERING_MASK_B; y ^= TEMPERING_SHIFT_T(y) & TEMPERING_MASK_C; y ^= TEMPERING_SHIFT_L(y); return y; } string Util::getOsVersion() { #ifdef WIN32 string os; OSVERSIONINFOEX ver; memset(&ver, 0, sizeof(OSVERSIONINFOEX)); ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); if(!GetVersionEx((OSVERSIONINFO*)&ver)) { ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); if(!GetVersionEx((OSVERSIONINFO*)&ver)) { os = "Windows (version unknown)"; } } if(os.empty()) { if(ver.dwPlatformId != VER_PLATFORM_WIN32_NT) { os = "Win9x/ME/Junk"; } else if(ver.dwMajorVersion == 4) { os = "WinNT4"; } else if(ver.dwMajorVersion == 5) { if(ver.dwMinorVersion == 0) { os = "Win2000"; } else if(ver.dwMinorVersion == 1) { os = "WinXP"; } else if(ver.dwMinorVersion == 2) { os = "Win2003"; } else { os = "Unknown WinNT5"; } if(ver.wProductType & VER_NT_WORKSTATION) os += " Pro"; else if(ver.wProductType & VER_NT_SERVER) os += " Server"; else if(ver.wProductType & VER_NT_DOMAIN_CONTROLLER) os += " DC"; } if(ver.wServicePackMajor != 0) { os += "SP"; os += Util::toString(ver.wServicePackMajor); if(ver.wServicePackMinor != 0) { os += '.'; os += Util::toString(ver.wServicePackMinor); } } } return os; #else // WIN32 utsname n; if(uname(&n) != 0) { return "unix (unknown version)"; } return string(n.sysname) + " " + string(n.release) + " (" + string(n.machine) + ")"; #endif // WIN32 } /** * @file * $Id: Util.cpp,v 1.26 2003/07/15 14:53:11 arnetheduck Exp $ */