1 files changed, 77 insertions, 0 deletions
diff --git a/source4/ntvfs/ipc/np_echo.c b/source4/ntvfs/ipc/np_echo.c
new file mode 100644
index 0000000000..bfa0083b79
--- /dev/null
+++ b/source4/ntvfs/ipc/np_echo.c
@@ -0,0 +1,77 @@
+/* 
+   Unix SMB/CIFS implementation.
+   DCE/RPC over named pipes support (glue between dcerpc and smb servers)
+
+   Copyright (C) Jelmer Vernooij 2005
+
+   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 2 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "lib/socket/socket.h"
+#include "lib/events/events.h"
+#include "rpc_server/dcerpc_server.h"
+#include "ntvfs/ipc/ipc.h"
+
+static NTSTATUS echo_pipe_open (void *context_data, const char *path, struct auth_session_info *session_info, struct stream_connection *srv_conn, TALLOC_CTX *mem_ctx, void **private_data)
+{
+	*private_data = talloc_zero(mem_ctx, DATA_BLOB);
+
+	return NT_STATUS_OK;
+}
+
+static NTSTATUS echo_pipe_trans(void *private_data, DATA_BLOB *in, DATA_BLOB *out)
+{
+	memcpy(out->data, in->data, MIN(out->length,in->length));
+
+	return NT_STATUS_OK;
+}
+
+static NTSTATUS echo_pipe_write(void *private_data, DATA_BLOB *out)
+{
+	DATA_BLOB *cache = private_data;
+	return data_blob_append(cache, cache, out->data, out->length);
+}
+
+static NTSTATUS echo_pipe_read(void *private_data, DATA_BLOB *in)
+{
+	uint8_t *newdata;
+	DATA_BLOB *cache = private_data;
+	uint32_t numread = MIN(in->length, cache->length);
+
+	memcpy(in->data, cache->data, numread);
+
+	cache->length -= numread;
+	newdata = talloc_memdup(cache, cache+numread, cache->length);
+	if (newdata == NULL)
+		return NT_STATUS_NO_MEMORY;
+
+	talloc_free(cache->data);
+	cache->data = newdata;
+
+	return NT_STATUS_OK;
+}
+
+const struct named_pipe_ops echo_pipe_ops = {
+	.open = echo_pipe_open,
+	.write = echo_pipe_write,
+	.read = echo_pipe_read,
+	.trans = echo_pipe_trans
+};
+
+NTSTATUS np_echo_init(void)
+{
+	return named_pipe_listen("\\PIPE\\NPECHO", &echo_pipe_ops, NULL);
+}