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/*
Miranda IM: the free IM client for Microsoft* Windows*
Copyright 2000-2003 Miranda ICQ/IM project,
all portions of this codebase are copyrighted to the people
listed in contributors.txt.
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"
int hLangpack;
HINSTANCE g_hInst = NULL;
static PLUGININFOEX pluginInfo = {
sizeof(PLUGININFOEX),
"Miranda database driver",
__VERSION_DWORD,
"Provides Miranda database support: global settings, contacts, history, settings per contact.",
"Miranda-IM project",
"ghazan@miranda-im.org",
"Copyright 2000-2011 Miranda IM project",
"",
UNICODE_AWARE,
{0x1394a3ab, 0x2585, 0x4196, { 0x8f, 0x72, 0xe, 0xae, 0xc2, 0x45, 0xe, 0x11 }} //{1394A3AB-2585-4196-8F72-0EAEC2450E11}
};
CDdxMmap* g_Db = NULL;
/////////////////////////////////////////////////////////////////////////////////////////
// returns 0 if the profile is created, EMKPRF*
static int makeDatabase(const TCHAR *profile, int * error)
{
HANDLE hFile = CreateFile(profile, GENERIC_READ|GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, NULL);
if ( hFile != INVALID_HANDLE_VALUE ) {
CreateDbHeaders(hFile);
CloseHandle(hFile);
return 0;
}
if ( error != NULL ) *error = EMKPRF_CREATEFAILED;
return 1;
}
// returns 0 if the given profile has a valid header
static int grokHeader(const TCHAR *profile, int * error )
{
int rc = 1;
int chk = 0;
struct DBHeader hdr;
HANDLE hFile = INVALID_HANDLE_VALUE;
DWORD dummy = 0;
hFile = CreateFile(profile, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
if ( hFile == INVALID_HANDLE_VALUE ) {
if ( error != NULL ) *error = EGROKPRF_CANTREAD;
return 1;
}
// read the header, which can fail (for various reasons)
if ( !ReadFile(hFile, &hdr, sizeof(struct DBHeader), &dummy, NULL)) {
if ( error != NULL) *error = EGROKPRF_CANTREAD;
CloseHandle(hFile);
return 1;
}
chk = CheckDbHeaders(&hdr);
if ( chk == 0 ) {
// all the internal tests passed, hurrah
rc = 0;
if ( error != NULL ) *error = 0;
} else {
// didn't pass at all, or some did.
switch ( chk ) {
case 1:
{
// "Miranda ICQ DB" wasn't present
if ( error != NULL ) *error = EGROKPRF_UNKHEADER;
break;
}
case 2:
{
// header was present, but version information newer
if ( error != NULL ) *error = EGROKPRF_VERNEWER;
break;
}
case 3:
{
// header/version OK, internal data missing
if ( error != NULL ) *error = EGROKPRF_DAMAGED;
break;
}
} // switch
} //if
CloseHandle(hFile);
return rc;
}
// returns 0 if all the APIs are injected otherwise, 1
static MIDatabase* LoadDatabase(const TCHAR *profile)
{
if (g_Db) delete g_Db;
g_Db = new CDdxMmap(profile);
// don't need thread notifications
_tcsncpy(szDbPath, profile, SIZEOF(szDbPath));
mir_getLP(&pluginInfo);
// inject all APIs and hooks into the core
LoadDatabaseModule();
return g_Db;
}
static int UnloadDatabase(MIDatabase* db)
{
UnloadDatabaseModule();
return 0;
}
static DATABASELINK dblink = {
sizeof(DATABASELINK),
"db3x driver",
_T("db3x database support"),
makeDatabase,
grokHeader,
LoadDatabase,
UnloadDatabase,
};
BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD dwReason, LPVOID reserved)
{
g_hInst = hInstDLL;
return TRUE;
}
extern "C" __declspec(dllexport) DATABASELINK* DatabasePluginInfo(void * reserved)
{
return &dblink;
}
extern "C" __declspec(dllexport) PLUGININFOEX * MirandaPluginInfoEx(DWORD mirandaVersion)
{
return &pluginInfo;
}
extern "C" __declspec(dllexport) const MUUID MirandaInterfaces[] = {MIID_DATABASE, MIID_LAST};
extern "C" __declspec(dllexport) int Load(void)
{
RegisterDatabasePlugin(&dblink);
return 0;
}
extern "C" __declspec(dllexport) int Unload(void)
{
return 0;
}
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