From 90e08b3568d8963a459cf06c4e67ff6fc99298e3 Mon Sep 17 00:00:00 2001
From: Luca Deri <deri@ntop.org>
Date: Wed, 19 Feb 2020 23:38:33 +0100
Subject: Fixes #845

---
 src/lib/third_party/src/ahocorasick.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/lib/third_party/src/ahocorasick.c b/src/lib/third_party/src/ahocorasick.c
index 27134c0cc..c2b958bb3 100644
--- a/src/lib/third_party/src/ahocorasick.c
+++ b/src/lib/third_party/src/ahocorasick.c
@@ -104,9 +104,17 @@ AC_ERROR_t ac_automata_add (AC_AUTOMATA_t * thiz, AC_PATTERN_t * patt)
     }
   }
 
-  if(n->final)
+  if(n->final) {
+#if 0
+    /* Original code */
     return ACERR_DUPLICATE_PATTERN;
-
+#else
+    /* ntop */
+    memcpy(&n->matched_patterns->rep, &patt->rep, sizeof(AC_REP_t));
+    return ACERR_SUCCESS;
+#endif
+  }
+      
   n->final = 1;
   node_register_matchstr(n, patt, 0);
   thiz->total_patterns++;
-- 
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