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Diffstat (limited to 'source3/winbindd/winbindd_wins_byname.c')
-rw-r--r--source3/winbindd/winbindd_wins_byname.c149
1 files changed, 149 insertions, 0 deletions
diff --git a/source3/winbindd/winbindd_wins_byname.c b/source3/winbindd/winbindd_wins_byname.c
new file mode 100644
index 0000000000..ad642d479d
--- /dev/null
+++ b/source3/winbindd/winbindd_wins_byname.c
@@ -0,0 +1,149 @@
+/*
+ Unix SMB/CIFS implementation.
+ async implementation of WINBINDD_WINS_BYNAME
+ Copyright (C) Volker Lendecke 2011
+
+ 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 "includes.h"
+#include "winbindd.h"
+#include "librpc/gen_ndr/ndr_wbint_c.h"
+#include "libsmb/nmblib.h"
+#include "lib/util/string_wrappers.h"
+
+struct winbindd_wins_byname_state {
+ struct tevent_context *ev;
+ struct winbindd_request *request;
+ struct sockaddr_storage *addrs;
+ int num_addrs;
+};
+
+static void winbindd_wins_byname_wins_done(struct tevent_req *subreq);
+static void winbindd_wins_byname_bcast_done(struct tevent_req *subreq);
+
+struct tevent_req *winbindd_wins_byname_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct winbindd_cli_state *cli,
+ struct winbindd_request *request)
+{
+ struct tevent_req *req, *subreq;
+ struct winbindd_wins_byname_state *state;
+
+ req = tevent_req_create(mem_ctx, &state,
+ struct winbindd_wins_byname_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ state->ev = ev;
+ state->request = request;
+
+ /* Ensure null termination */
+ request->data.winsreq[sizeof(request->data.winsreq)-1]='\0';
+
+ DEBUG(3, ("[%5lu]: wins_byname %s\n", (unsigned long)cli->pid,
+ request->data.winsreq));
+
+ subreq = resolve_wins_send(state, ev, state->request->data.winsreq,
+ 0x20);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, winbindd_wins_byname_wins_done, req);
+ return req;
+}
+
+static void winbindd_wins_byname_wins_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct winbindd_wins_byname_state *state = tevent_req_data(
+ req, struct winbindd_wins_byname_state);
+ NTSTATUS status;
+
+ status = resolve_wins_recv(subreq, talloc_tos(), &state->addrs,
+ &state->num_addrs, NULL);
+ TALLOC_FREE(subreq);
+ if (NT_STATUS_IS_OK(status)) {
+ tevent_req_done(req);
+ return;
+ }
+ subreq = name_resolve_bcast_send(state, state->ev,
+ state->request->data.winsreq, 0x20);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, winbindd_wins_byname_bcast_done, req);
+}
+
+static void winbindd_wins_byname_bcast_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct winbindd_wins_byname_state *state = tevent_req_data(
+ req, struct winbindd_wins_byname_state);
+ NTSTATUS status;
+
+ status = name_resolve_bcast_recv(subreq, talloc_tos(), &state->addrs,
+ &state->num_addrs);
+ TALLOC_FREE(subreq);
+ if (tevent_req_nterror(req, status)) {
+ return;
+ }
+ tevent_req_done(req);
+}
+
+NTSTATUS winbindd_wins_byname_recv(struct tevent_req *req,
+ struct winbindd_response *presp)
+{
+ struct winbindd_wins_byname_state *state = tevent_req_data(
+ req, struct winbindd_wins_byname_state);
+ char *response;
+ NTSTATUS status;
+ int i;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ return status;
+ }
+
+ response = talloc_strdup(talloc_tos(), "");
+ if (response == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ for (i=0; i<state->num_addrs; i++) {
+ char addr[INET6_ADDRSTRLEN];
+ print_sockaddr(addr, sizeof(addr), &state->addrs[i]);
+
+ response = talloc_asprintf_append_buffer(
+ response, "%s\t", addr);
+ if (response == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ }
+
+ response = talloc_asprintf_append_buffer(
+ response, "%s\n", state->request->data.winsreq);
+ if (response == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (talloc_get_size(response) > sizeof(presp->data.winsresp)) {
+ TALLOC_FREE(response);
+ return NT_STATUS_MARSHALL_OVERFLOW;
+ }
+ fstrcpy(presp->data.winsresp, response);
+ TALLOC_FREE(response);
+ return NT_STATUS_OK;
+}