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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 17:47:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 17:47:29 +0000
commit4f5791ebd03eaec1c7da0865a383175b05102712 (patch)
tree8ce7b00f7a76baa386372422adebbe64510812d4 /source4/libcli/resolve/lmhosts.c
parentInitial commit. (diff)
downloadsamba-4f5791ebd03eaec1c7da0865a383175b05102712.tar.xz
samba-4f5791ebd03eaec1c7da0865a383175b05102712.zip
Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'source4/libcli/resolve/lmhosts.c')
-rw-r--r--source4/libcli/resolve/lmhosts.c133
1 files changed, 133 insertions, 0 deletions
diff --git a/source4/libcli/resolve/lmhosts.c b/source4/libcli/resolve/lmhosts.c
new file mode 100644
index 0000000..244a9a3
--- /dev/null
+++ b/source4/libcli/resolve/lmhosts.c
@@ -0,0 +1,133 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ lmhosts name resolution module
+
+ Copyright (C) Andrew Tridgell 1994-1998,2005
+ Copyright (C) Jeremy Allison 2007
+ Copyright (C) Jelmer Vernooij 2007
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2009-2014
+ 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/composite/composite.h"
+#include "libcli/resolve/resolve.h"
+#include "lib/socket/socket.h"
+#include "system/network.h"
+#include "lib/socket/netif.h"
+#include "param/param.h"
+#include "lib/util/util_net.h"
+#include "libcli/nbt/libnbt.h"
+#include "dynconfig.h"
+
+struct resolve_lmhosts_state {
+ struct socket_address **addrs;
+ char **names;
+};
+
+/**
+ lmhosts name resolution method - async send
+ */
+/*
+ general name resolution - async send
+ */
+static struct composite_context *resolve_name_lmhosts_send(
+ TALLOC_CTX *mem_ctx,
+ struct tevent_context *event_ctx,
+ void *userdata, uint32_t flags,
+ uint16_t port,
+ struct nbt_name *name)
+{
+ struct composite_context *c;
+ struct resolve_lmhosts_state *state;
+ struct sockaddr_storage *resolved_iplist;
+ size_t resolved_count = 0, i;
+
+ if (event_ctx == NULL) {
+ return NULL;
+ }
+
+ c = composite_create(mem_ctx, event_ctx);
+ if (c == NULL) return NULL;
+
+ if (composite_nomem(c->event_ctx, c)) return c;
+
+ state = talloc_zero(c, struct resolve_lmhosts_state);
+ if (composite_nomem(state, c)) return c;
+ c->private_data = state;
+
+ c->status = resolve_lmhosts_file_as_sockaddr(state,
+ dyn_LMHOSTSFILE,
+ name->name,
+ name->type,
+ &resolved_iplist,
+ &resolved_count);
+ if (!composite_is_ok(c)) return c;
+
+ for (i=0; i < resolved_count; i += 2) {
+ state->addrs = talloc_realloc(state, state->addrs, struct socket_address *, i+2);
+ if (composite_nomem(state->addrs, c)) return c;
+
+ set_sockaddr_port((struct sockaddr *)&resolved_iplist[i], port);
+
+ state->addrs[i] = socket_address_from_sockaddr(state->addrs, (struct sockaddr *)&resolved_iplist[i], sizeof(resolved_iplist[i]));
+ if (composite_nomem(state->addrs[i], c)) return c;
+
+ state->addrs[i+1] = NULL;
+
+
+ state->names = talloc_realloc(state, state->names, char *, i+2);
+ if (composite_nomem(state->addrs, c)) return c;
+
+ state->names[i] = talloc_strdup(state->names, name->name);
+ if (composite_nomem(state->names[i], c)) return c;
+
+ state->names[i+1] = NULL;
+
+ }
+
+ composite_done(c);
+ return c;
+}
+
+/*
+ general name resolution method - recv side
+ */
+static NTSTATUS resolve_name_lmhosts_recv(struct composite_context *c,
+ TALLOC_CTX *mem_ctx,
+ struct socket_address ***addrs,
+ char ***names)
+{
+ NTSTATUS status;
+
+ status = composite_wait(c);
+
+ if (NT_STATUS_IS_OK(status)) {
+ struct resolve_lmhosts_state *state = talloc_get_type(c->private_data, struct resolve_lmhosts_state);
+ *addrs = talloc_steal(mem_ctx, state->addrs);
+ if (names) {
+ *names = talloc_steal(mem_ctx, state->names);
+ }
+ }
+
+ talloc_free(c);
+ return status;
+}
+
+
+bool resolve_context_add_lmhosts_method(struct resolve_context *ctx)
+{
+ return resolve_context_add_method(ctx, resolve_name_lmhosts_send, resolve_name_lmhosts_recv, NULL);
+}