1 files changed, 114 insertions, 0 deletions
diff --git a/lib/util/tevent_ntstatus.c b/lib/util/tevent_ntstatus.c
new file mode 100644
index 0000000..7659f15
--- /dev/null
+++ b/lib/util/tevent_ntstatus.c
@@ -0,0 +1,114 @@
+/*
+   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;
+}