s3-registry: Check return code of push_reg_sz().
[kai/samba.git] / source3 / winbindd / winbindd_getdcname.c
1 /*
2    Unix SMB/CIFS implementation.
3    async implementation of WINBINDD_GETDCNAME
4    Copyright (C) Volker Lendecke 2009
5
6    This program is free software; you can redistribute it and/or modify
7    it under the terms of the GNU General Public License as published by
8    the Free Software Foundation; either version 3 of the License, or
9    (at your option) any later version.
10
11    This program is distributed in the hope that it will be useful,
12    but WITHOUT ANY WARRANTY; without even the implied warranty of
13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14    GNU General Public License for more details.
15
16    You should have received a copy of the GNU General Public License
17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
18 */
19
20 #include "includes.h"
21 #include "winbindd.h"
22 #include "librpc/gen_ndr/ndr_wbint_c.h"
23
24 struct winbindd_getdcname_state {
25         struct netr_DsRGetDCNameInfo *dcinfo;
26 };
27
28 static void winbindd_getdcname_done(struct tevent_req *subreq);
29
30 struct tevent_req *winbindd_getdcname_send(TALLOC_CTX *mem_ctx,
31                                            struct tevent_context *ev,
32                                            struct winbindd_cli_state *cli,
33                                            struct winbindd_request *request)
34 {
35         struct tevent_req *req, *subreq;
36         struct winbindd_getdcname_state *state;
37
38         req = tevent_req_create(mem_ctx, &state,
39                                 struct winbindd_getdcname_state);
40         if (req == NULL) {
41                 return NULL;
42         }
43
44         request->domain_name[sizeof(request->domain_name)-1] = '\0';
45
46         DEBUG(3, ("[%5lu]: getdcname for %s\n", (unsigned long)cli->pid,
47                   request->domain_name));
48
49         subreq = wb_dsgetdcname_send(state, ev, request->domain_name, NULL,
50                                      NULL, 0);
51         if (tevent_req_nomem(subreq, req)) {
52                 return tevent_req_post(req, ev);
53         }
54         tevent_req_set_callback(subreq, winbindd_getdcname_done, req);
55         return req;
56 }
57
58 static void winbindd_getdcname_done(struct tevent_req *subreq)
59 {
60         struct tevent_req *req = tevent_req_callback_data(
61                 subreq, struct tevent_req);
62         struct winbindd_getdcname_state *state = tevent_req_data(
63                 req, struct winbindd_getdcname_state);
64         NTSTATUS status;
65
66         status = wb_dsgetdcname_recv(subreq, state, &state->dcinfo);
67         TALLOC_FREE(subreq);
68         if (tevent_req_nterror(req, status)) {
69                 return;
70         }
71         tevent_req_done(req);
72 }
73
74 NTSTATUS winbindd_getdcname_recv(struct tevent_req *req,
75                                  struct winbindd_response *response)
76 {
77         struct winbindd_getdcname_state *state = tevent_req_data(
78                 req, struct winbindd_getdcname_state);
79         NTSTATUS status;
80
81         if (tevent_req_is_nterror(req, &status)) {
82                 DEBUG(5, ("getdcname failed: %s\n", nt_errstr(status)));
83                 return status;
84         }
85         fstrcpy(response->data.dc_name, strip_hostname(state->dcinfo->dc_unc));
86         return NT_STATUS_OK;
87 }