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/*
Unix SMB/CIFS implementation.
Main COM functionality
Copyright (C) 2004 Jelmer Vernooij <jelmer@samba.org>
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "../lib/util/dlinklist.h"
#include "lib/com/com.h"
#include "lib/events/events.h"
#include "librpc/gen_ndr/com_dcom.h"
WERROR com_init_ctx(struct com_context **ctx, struct tevent_context *event_ctx)
{
*ctx = talloc(NULL, struct com_context);
if (event_ctx == NULL) {
event_ctx = samba_tevent_context_init(*ctx);
}
(*ctx)->event_ctx = event_ctx;
return WERR_OK;
}
WERROR com_create_object(struct com_context *ctx, struct GUID *clsid, int num_ifaces, struct GUID *iid, struct IUnknown **ip, WERROR *results)
{
struct IUnknown *iunk = NULL;
struct IClassFactory *factory;
WERROR error;
int i;
struct GUID classfact_iid;
GUID_from_string(NDR_ICLASSFACTORY_UUID, &classfact_iid);
/* Obtain class object */
error = com_get_class_object(ctx, clsid, &classfact_iid, (struct IUnknown **)&factory);
if (!W_ERROR_IS_OK(error)) {
DEBUG(3, ("Unable to obtain class object for %s\n", GUID_string(NULL, clsid)));
return error;
}
/* Run IClassFactory::CreateInstance() */
error = IClassFactory_CreateInstance(factory, ctx, NULL, &classfact_iid, (struct MInterfacePointer **)&iunk);
if (!W_ERROR_IS_OK(error)) {
DEBUG(3, ("Error while calling IClassFactory::CreateInstance : %s\n", win_errstr(error)));
return error;
}
if (!iunk) {
DEBUG(0, ("IClassFactory_CreateInstance returned success but result pointer is still NULL!\n"));
return WERR_GEN_FAILURE;
}
/* Release class object */
IUnknown_Release((struct IUnknown *)factory, ctx);
error = WERR_OK;
/* Do one or more QueryInterface calls */
for (i = 0; i < num_ifaces; i++) {
results[i] = IUnknown_QueryInterface(iunk, ctx, &iid[i], &ip[i]);
if (!W_ERROR_IS_OK(results[i])) error = results[i];
}
return error;
}
WERROR com_get_class_object(struct com_context *ctx, struct GUID *clsid, struct GUID *iid, struct IUnknown **ip)
{
struct IUnknown *iu;
iu = com_class_by_clsid(ctx, clsid);
if (!iu) {
return W_ERROR(HRES_ERROR_V(HRES_REGDB_E_CLASSNOTREG));
}
return IUnknown_QueryInterface(iu, ctx, iid, ip);
}
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