From 519b2970ec5618ef7e86748a7f762e2a9669f2ab Mon Sep 17 00:00:00 2001
From: Victor Julien <victor@inliniac.net>
Date: Thu, 1 Sep 2016 15:06:11 +0200
Subject: [PATCH] detect: don't print (null) in --list-keywords=all

---
 src/detect.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/detect.c b/src/detect.c
index 3ae6e0f860..7a779f3ae4 100644
--- a/src/detect.c
+++ b/src/detect.c
@@ -4256,8 +4256,10 @@ void SigTableList(const char *keyword)
         }
     } else if (!strcmp("all", keyword)) {
         for (i = 0; i < size; i++) {
-            printf("%s:\n", sigmatch_table[i].name);
-            SigMultilinePrint(i, "\t");
+            if (sigmatch_table[i].name != NULL) {
+                printf("%s:\n", sigmatch_table[i].name);
+                SigMultilinePrint(i, "\t");
+            }
         }
     } else {
         for (i = 0; i < size; i++) {