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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 "dbtool.h"
static DWORD ofsThisSettings,ofsDestPrevSettings;
int 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)) {
AddToStatus(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) {
AddToStatus(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) {
AddToStatus(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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