diff options
Diffstat (limited to 'engines/sword25/kernel/debug/debugtools.cpp')
| -rwxr-xr-x | engines/sword25/kernel/debug/debugtools.cpp | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/engines/sword25/kernel/debug/debugtools.cpp b/engines/sword25/kernel/debug/debugtools.cpp new file mode 100755 index 0000000000..91abe66ba7 --- /dev/null +++ b/engines/sword25/kernel/debug/debugtools.cpp @@ -0,0 +1,156 @@ +// ----------------------------------------------------------------------------- +// This file is part of Broken Sword 2.5 +// Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdörfer +// +// Broken Sword 2.5 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. +// +// Broken Sword 2.5 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 Broken Sword 2.5; if not, write to the Free Software +// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +// ----------------------------------------------------------------------------- + +// ----------------------------------------------------------------------------- +// Includes +// ----------------------------------------------------------------------------- + +#define WIN32_LEAN_AND_MEAN +#include <windows.h> + +#include <vector> +#include <string> +#include <sstream> +#include <fstream> +using namespace std; + +#include "kernel/md5.h" +#include "kernel/filesystemutil.h" +#include "debugtools.h" + +// ----------------------------------------------------------------------------- +// Konstanten und Hilfsfunktionen +// ----------------------------------------------------------------------------- + +namespace +{ + const char * VERSION_ID_ERROR = "???"; + const unsigned int READBUFFER_SIZE = 1024 * 100; + + const char * SUBVERSION_ENTRIES_FILENAME = ".svn\\entries"; + + // ------------------------------------------------------------------------- + + unsigned int ParseUnsignedInt(const string & Str, bool & Success) + { + istringstream iss(Str); + + unsigned int Result = 0; + iss >> Result; + + Success = !iss.fail(); + + return Result; + } +} + +// ----------------------------------------------------------------------------- + +const char * BS_Debugtools::GetVersionID() +{ + // Falls die Versions-ID noch nicht bekannt ist, muss sie bestimmt werden + static string VersionIDString; + if (VersionIDString.size() == 0) + { + // Dateinamen der EXE-Datei bestimmen + char FileName[MAX_PATH + 1]; + if (GetModuleFileName(0, FileName, sizeof(FileName)) == 0) return VERSION_ID_ERROR; + + // Datei öffnen + HANDLE FileHandle = CreateFile(FileName, GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, 0, 0); + if (INVALID_HANDLE_VALUE == FileHandle) return VERSION_ID_ERROR; + + // Datei stückchenweise Einlesen und MD5-Hash bilden + BS_MD5 md5; + std::vector<unsigned char> ReadBuffer(READBUFFER_SIZE); + DWORD BytesRead = 0; + do + { + // MD5-Hash für das eingelesene Dateistück berechnen. + md5.Update(&ReadBuffer[0], BytesRead); + + if (ReadFile(FileHandle, &ReadBuffer[0], READBUFFER_SIZE, &BytesRead, 0) == FALSE) + { + CloseHandle(FileHandle); + return VERSION_ID_ERROR; + } + } while (BytesRead > 0); + + // Datei schließen + CloseHandle(FileHandle); + + // Falls sich das aktuelle Verzeichnis in einem Subversion-Repository befindet, wird auch die Subversion-Revision mit in die ID gehasht. + // Dieses stellt im Beta-Test sicher, dass jede Änderung einer Datei, und nicht nur der EXE, zu einer neuen Versions-ID führt. + unsigned int SubversionRevision = GetSubversionRevision(); + if (SubversionRevision != 0) md5.Update(reinterpret_cast<unsigned char *>(&SubversionRevision), sizeof(unsigned int)); + + // MD5 abschließen + unsigned char Digest[16]; + md5.GetDigest(Digest); + + // VersionsID-String erstellen + std::ostringstream VersionIDBuf; + VersionIDBuf << std::hex; + for (unsigned int i = 0; i < sizeof(Digest); i++) + { + VersionIDBuf << (unsigned int) Digest[i]; + } + VersionIDString = VersionIDBuf.str(); + } + + return VersionIDString.c_str(); +} + +// ----------------------------------------------------------------------------- + +unsigned int BS_Debugtools::GetSubversionRevision() +{ + // Existiert eine entries Datei? + if (BS_FileSystemUtil::GetInstance().FileExists(SUBVERSION_ENTRIES_FILENAME)) + { + bool Success; + char Buffer[512]; + + // entries Datei öffnen. + ifstream File(SUBVERSION_ENTRIES_FILENAME); + if (File.fail()) return 0; + + // Das Format auslesen und feststellen, ob wir es unterstützen. + File.getline(Buffer, sizeof(Buffer), 0x0A); + unsigned int FormatVersion = ParseUnsignedInt(Buffer, Success); + if (File.fail() || !Success || FormatVersion < 7) return 0; + + // Den Namen des ersten Eintrages auslesen. Dieses muss ein leerer String sein und somit das aktuelle Verzeichnis benennen. + File.getline(Buffer, sizeof(Buffer), 0x0A); + if (File.fail() || strlen(Buffer) != 0) return 0; + + // Den Typ des Eintrages auslesen. Dieser muss "dir" sein. + File.getline(Buffer, sizeof(Buffer), 0x0A); + if (File.fail() || strcmp(Buffer, "dir") != 0) return 0; + + // Die Revision des Eintrages auslesen. + File.getline(Buffer, sizeof(Buffer), 0x0A); + unsigned int Revision = ParseUnsignedInt(Buffer, Success); + if (File.fail() || !Success) return 0; + + return Revision; + } + + return 0; +} |