From 53be47410236ef7c90fe895f49f300e3fe47a8bf Mon Sep 17 00:00:00 2001
From: Stefan Metzmacher <metze@samba.org>
Date: Tue, 19 Apr 2016 07:31:50 +0200
Subject: [PATCH] s3:libsmb: use password = NULL for anonymous connections
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BUG: https://bugzilla.samba.org/show_bug.cgi?id=11858

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
---
 source3/libsmb/cliconnect.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/source3/libsmb/cliconnect.c b/source3/libsmb/cliconnect.c
index 2c351dda9c5..b8a8c7a0839 100644
--- a/source3/libsmb/cliconnect.c
+++ b/source3/libsmb/cliconnect.c
@@ -1325,6 +1325,17 @@ static struct tevent_req *cli_session_setup_gensec_send(
 	talloc_set_destructor(
 		state, cli_session_setup_gensec_state_destructor);
 
+	if (user == NULL || strlen(user) == 0) {
+		if (pass != NULL && strlen(pass) == 0) {
+			/*
+			 * some callers pass "" as no password
+			 *
+			 * gensec only handles NULL as no password.
+			 */
+			pass = NULL;
+		}
+	}
+
 	status = auth_generic_client_prepare(state, &state->auth_generic);
 	if (tevent_req_nterror(req, status)) {
 		return tevent_req_post(req, ev);