From dd6cc1f83c1ba1c955587a439e58fee840ec5214 Mon Sep 17 00:00:00 2001
From: Andreas Schneider <mail@cynapses.org>
Date: Fri, 25 Apr 2008 10:57:35 +0200
Subject: [PATCH] Fix a segfault if we try to close a nullpointer.

Same local or in the smb plugin.
---
 modules/csync_smb.c       | 4 ++++
 src/vio/csync_vio_local.c | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/modules/csync_smb.c b/modules/csync_smb.c
index ece47ac19..8b1716c5a 100644
--- a/modules/csync_smb.c
+++ b/modules/csync_smb.c
@@ -104,6 +104,10 @@ static int _close(csync_vio_method_handle_t *fhandle) {
   int rc = -1;
   smb_fhandle_t *handle = NULL;
 
+  if (fhandle == NULL) {
+    return -1;
+  }
+
   handle = (smb_fhandle_t *) fhandle;
 
   rc = smbc_close(handle->fd);
diff --git a/src/vio/csync_vio_local.c b/src/vio/csync_vio_local.c
index 51d5d42e3..2e6908c29 100644
--- a/src/vio/csync_vio_local.c
+++ b/src/vio/csync_vio_local.c
@@ -72,6 +72,10 @@ int csync_vio_local_close(csync_vio_method_handle_t *fhandle) {
   int rc = -1;
   fhandle_t *handle = NULL;
 
+  if (fhandle == NULL) {
+    return -1;
+  }
+
   handle = (fhandle_t *) fhandle;
 
   rc = close(handle->fd);