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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the utils of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "keydec.h"
+
+#define MAX_STRSIZE 256
+#define NUMBER_OF_PARTS 7
+
+const ushort KeyDecoder::crc_tbl[] = {
+ 0x0000, 0x1081, 0x2102, 0x3183,
+ 0x4204, 0x5285, 0x6306, 0x7387,
+ 0x8408, 0x9489, 0xa50a, 0xb58b,
+ 0xc60c, 0xd68d, 0xe70e, 0xf78f
+};
+
+const char KeyDecoder::Xalphabet[] = "WX9MUEC7AJH3KS6DB4YFG2L5PQRT8VNZ";
+const int KeyDecoder::XAlphabetSize = sizeof(Xalphabet) - 1;
+const CDate KeyDecoder::StartDate = CDate(2001, 1, 1);
+const uint KeyDecoder::MaxDays = 4000;
+
+const char *KeyDecoder::Products[] = {
+ "Qt Universal",
+ "Qt Desktop",
+ "Qt Desktop Light",
+ "Qt Console",
+ "Qt Designer Only",
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+
+ "Qtopia PDA",
+ "Qtopia Phone",
+ "Qtopia Reference Board",
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+
+ "Teambuilder",
+ "Solutions",
+ "QSA",
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0
+};
+
+const char *KeyDecoder::Platforms[] = {
+ "X11",
+ "Embedded",
+ "Windows",
+ "Mac",
+ "Windows CE"
+};
+
+const char *KeyDecoder::LicenseSchemas[] = {
+ "Supported Evaluation",
+ "Unsupported Evaluation",
+ "Full Source Evaluation",
+ "Full Commercial",
+ "Academic",
+ "Educational"
+};
+
+const char *KeyDecoder::LicenseFeatures[] = {
+ "US Customer",
+ "Floating License",
+ 0,
+ 0
+};
+
+const int KeyDecoder::NumberOfProducts = sizeof(Products) / sizeof(char *);
+const int KeyDecoder::NumberOfPlatforms = sizeof(Platforms) / sizeof(char *);
+const int KeyDecoder::NumberOfLicenseSchemas = sizeof(LicenseSchemas) / sizeof(char *);
+const int KeyDecoder::NumberOfLicenseFeatures = sizeof(LicenseFeatures) / sizeof(char *);
+
+CDate::CDate() : m_jd(0)
+{
+}
+
+CDate::CDate(int y, int m, int d)
+{
+ m_jd = gregorianToJulian(y, m, d);
+}
+
+CDate::CDate(CDate *d)
+{
+ m_jd = d->m_jd;
+}
+
+CDate::CDate(uint julianDays)
+{
+ m_jd = julianDays;
+}
+
+int CDate::year() const
+{
+ int y, m, d;
+ julianToGregorian(m_jd, y, m, d);
+ return y;
+}
+
+int CDate::month() const
+{
+ int y, m, d;
+ julianToGregorian(m_jd, y, m, d);
+ return m;
+}
+
+int CDate::day() const
+{
+ int y, m, d;
+ julianToGregorian(m_jd, y, m, d);
+ return d;
+}
+
+uint CDate::gregorianToJulian(int y, int m, int d) const
+{
+ uint c, ya;
+ if (y <= 99)
+ y += 1900;
+ if (m > 2) {
+ m -= 3;
+ } else {
+ m += 9;
+ y--;
+ }
+ c = y; // NOTE: Sym C++ 6.0 bug
+ c /= 100;
+ ya = y - 100*c;
+ return 1721119 + d + (146097*c)/4 + (1461*ya)/4 + (153*m+2)/5;
+}
+
+void CDate::julianToGregorian(uint jd, int &y, int &m, int &d) const
+{
+ uint x;
+ uint j = jd - 1721119;
+ y = (j*4 - 1)/146097;
+ j = j*4 - 146097*y - 1;
+ x = j/4;
+ j = (x*4 + 3) / 1461;
+ y = 100*y + j;
+ x = (x*4) + 3 - 1461*j;
+ x = (x + 4)/4;
+ m = (5*x - 3)/153;
+ x = 5*x - 3 - 153*m;
+ d = (x + 5)/5;
+ if (m < 10) {
+ m += 3;
+ } else {
+ m -= 9;
+ y++;
+ }
+}
+
+void KeyDecoder::encodeBaseX(uint k, char *str)
+{
+ memset(str, 0, MAX_STRSIZE);
+
+ do {
+ str[strlen(str)] = Xalphabet[ k % XAlphabetSize ];
+ k /= XAlphabetSize;
+ } while (k > 0u);
+}
+
+uint KeyDecoder::decodeBaseX(const char *str)
+{
+ uint k = 0;
+ int i = (int)strlen(str);
+ while (i > 0) {
+ i--;
+ const char *p = strchr(Xalphabet, str[i]);
+ if (p == 0) {
+ return 0;
+ } else {
+ k = (k * XAlphabetSize) + (p - Xalphabet);
+ }
+ }
+ return k;
+}
+
+void KeyDecoder::encodedExpiryDate(const CDate &date, char *str)
+{
+ encodeBaseX(date.julianDate() ^ ExpiryDateMagic, str);
+}
+
+CDate KeyDecoder::decodedExpiryDate(const char *encodedDate)
+{
+ uint y = decodeBaseX(encodedDate);
+ uint x = y ^ ExpiryDateMagic;
+
+ CDate date(x);
+
+ char str[MAX_STRSIZE];
+ encodedExpiryDate(date, str);
+
+ if (strcmp(encodedDate, str) != 0)
+ return CDate();
+ return date;
+}
+
+ushort KeyDecoder::qChecksum(const char *data, uint len)
+{
+ ushort crc = 0xffff;
+ uchar c;
+ const uchar *p = reinterpret_cast<const uchar *>(data);
+ while (len--) {
+ c = *p++;
+ crc = ((crc >> 4) & 0x0fff) ^ crc_tbl[((crc ^ c) & 15)];
+ c >>= 4;
+ crc = ((crc >> 4) & 0x0fff) ^ crc_tbl[((crc ^ c) & 15)];
+ }
+ return ~crc & 0xffff;
+}
+
+KeyDecoder::KeyDecoder(const char *clicenseKey)
+ : products(0), platforms(0), licenseSchema(0), licenseFeatures(0), licenseID(0), m_valid(false)
+{
+ static const int MAXCHARS = 7;
+ static const char * const SEP = "-";
+
+#ifndef _WIN32_WCE
+ char *buffer = strdup(clicenseKey);
+#else
+ char *buffer = (char*) malloc(strlen(clicenseKey) + 1);
+ strcpy(buffer, clicenseKey);
+#endif
+ char *licenseParts[NUMBER_OF_PARTS];
+ int partNumber = 0;
+
+ for (char *part = strtok(buffer, SEP); part != 0; part = strtok(0, SEP))
+ licenseParts[partNumber++] = part;
+
+ if (partNumber < (NUMBER_OF_PARTS-1)) {
+ free(buffer);
+ return; //invalid key
+ }
+
+ int crcPeices = NUMBER_OF_PARTS - 1;
+ char *crcCheckKey = (char*)calloc(crcPeices * MAXCHARS + crcPeices, sizeof(char));
+ for (int i = 0; i < crcPeices; ++i) {
+ if (i != 0)
+ strncat(crcCheckKey, SEP, 1);
+ strncat(crcCheckKey, licenseParts[i], MAXCHARS);
+ }
+
+ int crc = qChecksum(crcCheckKey, (uint)strlen(crcCheckKey));
+
+ char checksumVerification[5];
+#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__) || defined(WIN64) || defined(_WIN64) || defined(__WIN64__)
+ _snprintf(checksumVerification, 5, "%.2X%.2X", (crc & 0xff), (crc >> 8 & 0xff));
+#else
+ snprintf(checksumVerification, 5, "%.2X%.2X", (crc & 0xff), (crc >> 8 & 0xff));
+#endif
+
+ if (strncmp(checksumVerification, licenseParts[6], 5) != 0) {
+ free(buffer);
+ free(crcCheckKey);
+ return; //invalid checksum
+ }
+
+ products = decodeBaseX(licenseParts[0]) ^ ProductMagic;
+ platforms = decodeBaseX(licenseParts[1]) ^ PlatformMagic;
+ licenseSchema = decodeBaseX(licenseParts[2]) ^ LicenseSchemaMagic;
+ licenseFeatures = decodeBaseX(licenseParts[3]) ^ FeatureMagic;
+ licenseID = decodeBaseX(licenseParts[4]) ^ LicenseIDMagic;
+ expiryDate = decodedExpiryDate(licenseParts[5]);
+
+ m_valid = true;
+ free(buffer);
+ free(crcCheckKey);
+}
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