1 files changed, 81 insertions, 0 deletions
diff --git a/tools/dbtool/initialchecks.cpp b/tools/dbtool/initialchecks.cpp
new file mode 100644
index 0000000000..aa9a5527fa
--- /dev/null
+++ b/tools/dbtool/initialchecks.cpp
@@ -0,0 +1,81 @@
+/*
+Miranda Database Tool
+Copyright (C) 2001-2005  Richard Hughes
+
+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 "dbtool.h"
+
+extern DWORD sourceFileSize,spaceUsed;
+
+int WorkInitialChecks(int firstTime)
+{
+	DWORD bytesRead;
+
+	sourceFileSize=GetFileSize(opts.hFile,NULL);
+	if(sourceFileSize==0) {
+		AddToStatus(STATUS_WARNING,TranslateT("Database is newly created and has no data to process"));
+		AddToStatus(STATUS_SUCCESS,TranslateT("Processing completed successfully"));
+		return ERROR_INVALID_DATA;
+	}
+	ReadFile(opts.hFile,&dbhdr,sizeof(dbhdr),&bytesRead,NULL);
+	if(bytesRead<sizeof(dbhdr)) {
+		AddToStatus(STATUS_FATAL,TranslateT("Database is corrupted and too small to contain any recoverable data"));
+		return ERROR_BAD_FORMAT;
+	}
+	if(memcmp(dbhdr.signature,&dbSignature,sizeof(dbhdr.signature))) {
+		AddToStatus(STATUS_FATAL,TranslateT("Database signature is corrupted, automatic repair is impossible"));
+		return ERROR_BAD_FORMAT;
+	}
+	if(dbhdr.version!=0x00000700) {
+		AddToStatus(STATUS_FATAL,TranslateT("Database is marked as belonging to an unknown version of Miranda"));
+		return ERROR_BAD_FORMAT;
+	}
+	_tcscpy(opts.workingFilename,opts.filename);
+
+	if(opts.bCheckOnly) {
+		_tcscpy( opts.outputFilename, TranslateT("<check only>"));
+		opts.hOutFile=INVALID_HANDLE_VALUE;
+	}
+	else {
+		_tcscpy(opts.outputFilename,opts.filename);
+		*_tcsrchr(opts.outputFilename,'.')=0;
+		_tcscat(opts.outputFilename,TranslateT(" (Output).dat"));
+		opts.hOutFile = CreateFile(opts.outputFilename,GENERIC_WRITE,FILE_SHARE_READ,NULL,CREATE_ALWAYS,FILE_FLAG_SEQUENTIAL_SCAN,NULL);
+		if ( opts.hOutFile == INVALID_HANDLE_VALUE ) {
+			AddToStatus(STATUS_FATAL,TranslateT("Can't create output file (%u)"),GetLastError());
+			return ERROR_ACCESS_DENIED;
+		}
+	}
+
+	opts.hMap = CreateFileMapping(opts.hFile, NULL, opts.bAggressive?PAGE_WRITECOPY:PAGE_READONLY, 0, 0, NULL);
+
+	if (opts.hMap)
+		opts.pFile = (BYTE*)MapViewOfFile(opts.hMap, opts.bAggressive?FILE_MAP_COPY:FILE_MAP_READ, 0, 0 ,0);
+	else {
+		AddToStatus(STATUS_FATAL,TranslateT("Can't create file mapping (%u)"),GetLastError());
+		return ERROR_ACCESS_DENIED;
+	}
+
+	if (!opts.pFile) {
+		AddToStatus(STATUS_FATAL,TranslateT("Can't create map view of file (%u)"),GetLastError());
+		return ERROR_ACCESS_DENIED;
+	}
+	if(ReadSegment(0,&dbhdr,sizeof(dbhdr))!=ERROR_SUCCESS) return ERROR_READ_FAULT;
+	if(WriteSegment(0,&dbhdr,sizeof(dbhdr))==WS_ERROR) return ERROR_HANDLE_DISK_FULL;
+	spaceUsed=dbhdr.ofsFileEnd-dbhdr.slackSpace;
+	dbhdr.ofsFileEnd=sizeof(dbhdr);
+	return ERROR_NO_MORE_ITEMS;
+}