From: Volker Lendecke <vl@samba.org>
Date: Thu, 23 Jun 2016 11:24:02 +0000 (+0200)
Subject: lib: Allow NULL blob for messaging_send()
X-Git-Tag: tdb-1.3.10~399
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c3af7a377d5e298074123a621e849ddd29deadbd;p=thirdparty%2Fsamba.git

lib: Allow NULL blob for messaging_send()

... something I've wanted to do for ages :-)

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Thu Jul 14 20:50:15 CEST 2016 on sn-devel-144
---

diff --git a/source3/lib/messages.c b/source3/lib/messages.c
index a81aee8e0f7..ba97fb51553 100644
--- a/source3/lib/messages.c
+++ b/source3/lib/messages.c
@@ -516,10 +516,12 @@ NTSTATUS messaging_send(struct messaging_context *msg_ctx,
 			struct server_id server, uint32_t msg_type,
 			const DATA_BLOB *data)
 {
-	struct iovec iov;
+	struct iovec iov = {0};
 
-	iov.iov_base = data->data;
-	iov.iov_len = data->length;
+	if (data != NULL) {
+		iov.iov_base = data->data;
+		iov.iov_len = data->length;
+	};
 
 	return messaging_send_iov(msg_ctx, server, msg_type, &iov, 1, NULL, 0);
 }