1 files changed, 117 insertions, 0 deletions
diff --git a/source4/libcli/resolve/bcast.c b/source4/libcli/resolve/bcast.c
new file mode 100644
index 0000000..277a82d
--- /dev/null
+++ b/source4/libcli/resolve/bcast.c
@@ -0,0 +1,117 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   broadcast name resolution module
+
+   Copyright (C) Andrew Tridgell 2005
+   Copyright (C) Jelmer Vernooij 2007
+   
+   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 "libcli/resolve/resolve.h"
+#include "system/network.h"
+#include "lib/socket/netif.h"
+#include "param/param.h"
+
+struct resolve_bcast_data {
+	struct interface *ifaces;
+	uint16_t nbt_port;
+	int nbt_timeout;
+};
+
+/**
+  broadcast name resolution method - async send
+ */
+static struct composite_context *resolve_name_bcast_send(
+	TALLOC_CTX *mem_ctx,
+	struct tevent_context *event_ctx,
+	void *userdata, uint32_t flags,
+	uint16_t port,
+	struct nbt_name *name)
+{
+	int num_interfaces;
+	const char **address_list;
+	struct composite_context *c;
+	int i, count=0;
+	struct resolve_bcast_data *data = talloc_get_type(userdata, struct resolve_bcast_data);
+
+	num_interfaces = iface_list_count(data->ifaces);
+
+	address_list = talloc_array(mem_ctx, const char *, num_interfaces+1);
+	if (address_list == NULL) return NULL;
+
+	for (i=0;i<num_interfaces;i++) {
+		bool ipv4 = iface_list_n_is_v4(data->ifaces, i);
+		const char *bcast;
+
+		if (!ipv4) {
+			continue;
+		}
+
+		bcast = iface_list_n_bcast(data->ifaces, i);
+		if (bcast == NULL) {
+			continue;
+		}
+
+		address_list[count] = talloc_strdup(address_list, bcast);
+		if (address_list[count] == NULL) {
+			talloc_free(address_list);
+			return NULL;
+		}
+		count++;
+	}
+	address_list[count] = NULL;
+
+	c = resolve_name_nbtlist_send(mem_ctx, event_ctx, flags, port, name,
+				      address_list, data->ifaces, data->nbt_port,
+				      data->nbt_timeout, true, false);
+	talloc_free(address_list);
+
+	return c;	
+}
+
+/*
+  broadcast name resolution method - recv side
+ */
+static NTSTATUS resolve_name_bcast_recv(struct composite_context *c,
+					TALLOC_CTX *mem_ctx,
+					struct socket_address ***addrs,
+					char ***names)
+{
+	NTSTATUS status = resolve_name_nbtlist_recv(c, mem_ctx, addrs, names);
+	if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
+		/* this makes much more sense for a bcast name resolution
+		   timeout */
+		status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+	}
+	return status;
+}
+
+bool resolve_context_add_bcast_method(struct resolve_context *ctx, struct interface *ifaces, uint16_t nbt_port, int nbt_timeout)
+{
+	struct resolve_bcast_data *data = talloc(ctx, struct resolve_bcast_data);
+	data->ifaces = ifaces;
+	data->nbt_port = nbt_port;
+	data->nbt_timeout = nbt_timeout;
+	return resolve_context_add_method(ctx, resolve_name_bcast_send, resolve_name_bcast_recv, data);
+}
+
+bool resolve_context_add_bcast_method_lp(struct resolve_context *ctx, struct loadparm_context *lp_ctx)
+{
+	struct interface *ifaces;
+	load_interface_list(ctx, lp_ctx, &ifaces);
+	return resolve_context_add_bcast_method(ctx, ifaces, lpcfg_nbt_port(lp_ctx), lpcfg_parm_int(lp_ctx, NULL, "nbt", "timeout", 1));
+}