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/*
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 "..\commonheaders.h"
static DWORD ofsThisSettings,ofsDestPrevSettings;
int CDb3Base::WorkSettingsChain(DWORD ofsContact,DBContact *dbc,int firstTime)
{
DBContactSettings *dbcsNew,dbcsOld;
DWORD ofsDestThis;
int ret;
if (firstTime) {
ofsDestPrevSettings = 0;
ofsThisSettings = dbc->ofsFirstSettings;
dbc->ofsFirstSettings = 0;
}
if (ofsThisSettings == 0)
return ERROR_NO_MORE_ITEMS;
if (!SignatureValid(ofsThisSettings,DBCONTACTSETTINGS_SIGNATURE)) {
cb->pfnAddLogMessage(STATUS_ERROR,TranslateT("Settings chain corrupted, further entries ignored"));
return ERROR_NO_MORE_ITEMS;
}
if (PeekSegment(ofsThisSettings,&dbcsOld,sizeof(dbcsOld)) != ERROR_SUCCESS)
return ERROR_NO_MORE_ITEMS;
if (dbcsOld.cbBlob>256*1024 || dbcsOld.cbBlob == 0) {
cb->pfnAddLogMessage(STATUS_ERROR,TranslateT("Infeasibly large settings blob: skipping"));
ofsThisSettings = dbcsOld.ofsNext;
return ERROR_SUCCESS;
}
dbcsNew = (DBContactSettings*)_alloca(offsetof(DBContactSettings,blob)+dbcsOld.cbBlob);
if ((ret = ReadSegment(ofsThisSettings,dbcsNew,offsetof(DBContactSettings,blob)+dbcsOld.cbBlob)) != ERROR_SUCCESS) {
if (ret != ERROR_HANDLE_EOF) { //eof is OK because blank space at the end doesn't matter
return ERROR_NO_MORE_ITEMS;
}
}
if ((dbcsNew->ofsModuleName = ConvertModuleNameOfs(dbcsOld.ofsModuleName)) == 0) {
ofsThisSettings = dbcsOld.ofsNext;
return ERROR_SUCCESS;
}
if (dbcsNew->blob[0] == 0) {
cb->pfnAddLogMessage(STATUS_MESSAGE,TranslateT("Empty settings group at %08X: skipping"),ofsThisSettings);
ofsThisSettings = dbcsOld.ofsNext;
return ERROR_SUCCESS;
}
dbcsNew->ofsNext = 0;
//TODO? validate all settings in blob/compact if necessary
if ((ofsDestThis = WriteSegment(WSOFS_END,dbcsNew,offsetof(DBContactSettings,blob)+dbcsNew->cbBlob)) == WS_ERROR) {
return ERROR_HANDLE_DISK_FULL;
}
if (ofsDestPrevSettings) WriteSegment(ofsDestPrevSettings+offsetof(DBContactSettings,ofsNext),&ofsDestThis,sizeof(DWORD));
else dbc->ofsFirstSettings = ofsDestThis;
ofsDestPrevSettings = ofsDestThis;
ofsThisSettings = dbcsOld.ofsNext;
return ERROR_SUCCESS;
}
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