Allow reinit_after_fork to be called safely from within swat and other binaries that don't have

an event context or a msg context. Fixes crash bug in swat.
Jeremy.
(cherry picked from commit 45e6f9c5a4b5d9cdb89f398f1238872251ccbe54)

2 files changed, 20 insertions, 11 deletions

diff --git a/source/lib/dummysmbd.c b/source/lib/dummysmbd.c
index 5c624bdebfb..f0fd18c87aa 100644
--- a/source/lib/dummysmbd.c
+++ b/source/lib/dummysmbd.c
@@ -59,7 +59,12 @@ bool change_to_root_user(void)
 
 struct event_context *smbd_event_context(void)
 {
-	return NULL;
+	static struct event_context *ev;
+
+	if (!ev) {
+		ev = event_context_init(NULL);
+	}
+	return ev;
 }
 
 struct messaging_context *smbd_messaging_context(void)
diff --git a/source/lib/util.c b/source/lib/util.c
index 262d37f8c4f..5ec6f264103 100644
--- a/source/lib/util.c
+++ b/source/lib/util.c
@@ -1055,18 +1055,22 @@ bool reinit_after_fork(struct messaging_context *msg_ctx,
 		return false;
 	}
 
-	/*
-	 * For clustering, we need to re-init our ctdbd connection after the
-	 * fork
-	 */
-	status = messaging_reinit(msg_ctx);
-	if (!NT_STATUS_IS_OK(status)) {
-		DEBUG(0,("messaging_reinit() failed: %s\n",
-			 nt_errstr(status)));
-		return false;
+	if (msg_ctx) {
+		/*
+		 * For clustering, we need to re-init our ctdbd connection after the
+		 * fork
+		 */
+		status = messaging_reinit(msg_ctx);
+		if (!NT_STATUS_IS_OK(status)) {
+			DEBUG(0,("messaging_reinit() failed: %s\n",
+				 nt_errstr(status)));
+			return false;
+		}
 	}
 
-	event_context_reinit(ev_ctx);
+	if (ev_ctx) {
+		event_context_reinit(ev_ctx);
+	}
 
 	return true;
 }