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/*
Unix SMB/CIFS implementation.
Wrap unix errno around tevent_req
Copyright (C) Volker Lendecke 2009
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "../replace/replace.h"
#include "tevent_ntstatus.h"
#include "libcli/util/error.h"
#define TEVENT_NTERROR_MAGIC (0x917b5acd)
bool _tevent_req_nterror(struct tevent_req *req,
NTSTATUS status,
const char *location)
{
uint64_t err;
if (NT_STATUS_IS_OK(status)) {
return false;
}
/*
* I've put this variable here, because I'm not 100% certain
* how to correctly assign a 64-bit constant and left-shift it
* by 32 bits in a single expression. If anyone knows, feel
* free :-)
*/
err = TEVENT_NTERROR_MAGIC;
err <<= 32;
err |= NT_STATUS_V(status);
return _tevent_req_error(req, err, location);
}
bool tevent_req_is_nterror(struct tevent_req *req, NTSTATUS *status)
{
enum tevent_req_state state;
uint64_t err;
if (!tevent_req_is_error(req, &state, &err)) {
return false;
}
switch (state) {
case TEVENT_REQ_TIMED_OUT:
*status = NT_STATUS_IO_TIMEOUT;
break;
case TEVENT_REQ_NO_MEMORY:
*status = NT_STATUS_NO_MEMORY;
break;
case TEVENT_REQ_USER_ERROR:
if ((err >> 32) != TEVENT_NTERROR_MAGIC) {
abort();
}
*status = NT_STATUS(err & 0xffffffff);
break;
default:
*status = NT_STATUS_INTERNAL_ERROR;
break;
}
return true;
}
NTSTATUS tevent_req_simple_recv_ntstatus(struct tevent_req *req)
{
NTSTATUS status = NT_STATUS_OK;
/*
* Ignore result of tevent_req_is_nterror, we're only interested in
* the status
*/
tevent_req_is_nterror(req, &status);
tevent_req_received(req);
return status;
}
void tevent_req_simple_finish_ntstatus(struct tevent_req *subreq,
NTSTATUS subreq_status)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
TALLOC_FREE(subreq);
if (!NT_STATUS_IS_OK(subreq_status)) {
tevent_req_nterror(req, subreq_status);
return;
}
tevent_req_done(req);
}
bool tevent_req_poll_ntstatus(struct tevent_req *req,
struct tevent_context *ev,
NTSTATUS *status)
{
bool ret = tevent_req_poll(req, ev);
if (!ret) {
*status = map_nt_error_from_unix_common(errno);
}
return ret;
}
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